From alican1812 at hotmail.com  Wed Nov  1 09:04:01 2017
From: alican1812 at hotmail.com (alican)
Date: Wed, 1 Nov 2017 06:04:01 -0700 (MST)
Subject: [vtkusers] How to make indefinite coordinate system
Message-ID: <1509541441717-0.post@n5.nabble.com>

I know about vtkAxisActor, and about vtkCubeAxesActor.

However what I would really like is to create a coordinate system across the
screen, with a center in the viewport's (0,0,0) and with axis in both
positive and negative directions, filling all the screen, no matter how
zoomed/panned it is.

Does somebody know how to/ have tried to do something similar?

Thanks,
AC



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From rick at pile.com  Wed Nov  1 12:13:47 2017
From: rick at pile.com (Rick Dailey)
Date: Wed, 1 Nov 2017 09:13:47 -0700 (MST)
Subject: [vtkusers] vtkTextureObject bind error
In-Reply-To: <CADM17uMCsucHksufeBPRV-hfKzZv1QKmB8RnXPyt3FbcwA1pLQ@mail.gmail.com>
References: <1501518920479-5744223.post@n5.nabble.com>
 <CADM17uP_HkG8G2+etGt8NsF+Q0zhe8stNerGVU4i-9XTANYB=g@mail.gmail.com>
 <1501522915867-5744226.post@n5.nabble.com>
 <CADM17uMxnb5vGjzadovjhY3XPm2CeD+jQpLCB=G7SkNyOq5cxw@mail.gmail.com>
 <1501584716697-5744234.post@n5.nabble.com>
 <CADM17uMc_2GD=D6f32cW5MC58xZCHnE=6WO9CXBMu+8bw=FtUw@mail.gmail.com>
 <1502710447044-5744390.post@n5.nabble.com>
 <CADM17uPscJ2MoNaRVRwY9k5JkxWLe2EW2ag37MkZwS_qtuH0aw@mail.gmail.com>
 <CADM17uPjfuoyXeYw78RJXssLLevLvDDU7VPiQkHmt+_Jujfgeg@mail.gmail.com>
 <CADM17uMCsucHksufeBPRV-hfKzZv1QKmB8RnXPyt3FbcwA1pLQ@mail.gmail.com>
Message-ID: <1509552827599-0.post@n5.nabble.com>

Can someone please take a look at this issue again.  The fix that was
provided back in August does not work as expected and causes additional
problems as I noted in my most recent post (September 29).   I have asked
for assistance a few times since then but there have been no replies.

Thanks.
Rick Dailey





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From aashish.chaudhary at kitware.com  Wed Nov  1 12:41:30 2017
From: aashish.chaudhary at kitware.com (Aashish Chaudhary)
Date: Wed, 01 Nov 2017 16:41:30 +0000
Subject: [vtkusers] vtkTextureObject bind error
In-Reply-To: <1509552827599-0.post@n5.nabble.com>
References: <1501518920479-5744223.post@n5.nabble.com>
 <CADM17uP_HkG8G2+etGt8NsF+Q0zhe8stNerGVU4i-9XTANYB=g@mail.gmail.com>
 <1501522915867-5744226.post@n5.nabble.com>
 <CADM17uMxnb5vGjzadovjhY3XPm2CeD+jQpLCB=G7SkNyOq5cxw@mail.gmail.com>
 <1501584716697-5744234.post@n5.nabble.com>
 <CADM17uMc_2GD=D6f32cW5MC58xZCHnE=6WO9CXBMu+8bw=FtUw@mail.gmail.com>
 <1502710447044-5744390.post@n5.nabble.com>
 <CADM17uPscJ2MoNaRVRwY9k5JkxWLe2EW2ag37MkZwS_qtuH0aw@mail.gmail.com>
 <CADM17uPjfuoyXeYw78RJXssLLevLvDDU7VPiQkHmt+_Jujfgeg@mail.gmail.com>
 <CADM17uMCsucHksufeBPRV-hfKzZv1QKmB8RnXPyt3FbcwA1pLQ@mail.gmail.com>
 <1509552827599-0.post@n5.nabble.com>
Message-ID: <CAEw35Z8aug9yLJoQ3-wDRia4Wq3N6XQxcLcQs72M+HvrTLbAag@mail.gmail.com>

Hi Rick,

As we are following up on this issue, we will report back to the this
thread as soon as we have a resolution.

Thanks,


On Wed, Nov 1, 2017 at 12:13 PM Rick Dailey <rick at pile.com> wrote:

> Can someone please take a look at this issue again.  The fix that was
> provided back in August does not work as expected and causes additional
> problems as I noted in my most recent post (September 29).   I have asked
> for assistance a few times since then but there have been no replies.
>
> Thanks.
> Rick Dailey
>
>
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
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From sankhesh.jhaveri at kitware.com  Wed Nov  1 13:12:29 2017
From: sankhesh.jhaveri at kitware.com (Sankhesh Jhaveri)
Date: Wed, 01 Nov 2017 17:12:29 +0000
Subject: [vtkusers] Issues using QVTKOpenGLWidget
In-Reply-To: <AM5PR0601MB23061DC44BF9BE9777AEFC03C0590@AM5PR0601MB2306.eurprd06.prod.outlook.com>
References: <AM5PR0601MB23061DC44BF9BE9777AEFC03C0590@AM5PR0601MB2306.eurprd06.prod.outlook.com>
Message-ID: <CAEcL5t5xm8ruODDV-LzJoWrY-mvF53TcAYFH=iH+QsodosY+Gw@mail.gmail.com>

Hi Boris,

Regarding the vtkHardwareSelector issue, try disabling multisampling on the
QSurfaceFormat before setting the default surface format.

QSurfaceFormat fmt = QVTKOpenGLWidget::defaultFormat();
fmt.setSamples(0);
QSurfaceFormat::setDefaultFormat(fmt);

Hope that helps.

Cheers,
Sankhesh
?

On Mon, Oct 30, 2017 at 12:54 PM Boris Basic <baljci at hotmail.com> wrote:

> Hi,
>
>
> I'm currently porting an existing finite element mesh analysis application
> from VTK 7.0 to VTK 8.x (actually the last master to be ready for the
> upcoming 8.1 version). But when switching to the new QVTKOpenGLWidget, I
> encountered too issues, one relatively minor, the other pretty annoying.
>
>
> The first and biggest problem is selection, both using vtkHardwareSelector
> from surface selection, and the vtkRenderedAreaPicker for frustum
> selection. The vtkHardwareSelector sometimes simply fails to select the
> points properly, whereas it always worked with the previous QVTKWidget.
> Unfortunately, it's very random, and I can't manage to get a working
> example showing the issue on each selection. For the vtkRenderedAreaPicker,
> the problem is that the render window becomes black while the picker is
> working.
>
>
> The second and minor issue, the first I encountered, concerns a
> transparency problem with the new widget rendering. Lines seems to blend
> with the background. I opened an issue here for that one:
> https://gitlab.kitware.com/vtk/vtk/issues/17154. It's not as important as
> the selection bug, but it was the first issue I saw. It is only visible
> when multisampling is enabled.
>
>
> Boris
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
-- 
Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
<http://www.kitware.com/> | (518) 881-4417
?
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From kayarre at gmail.com  Wed Nov  1 13:37:23 2017
From: kayarre at gmail.com (Kurt Sansom)
Date: Wed, 01 Nov 2017 17:37:23 +0000
Subject: [vtkusers] Extract unstructured grid faces
Message-ID: <CAHyF3ohgbVBZCTw63U=3j89t=43y8jUCj7UMiTPZVHUfM-Sj-A@mail.gmail.com>

Vtk has the edge filter and geometry filter.

But the geometry filter only extracts the outer surface, I want the
equivalent the edge filter but for mesh faces.

I assume I can subclass the geometry filter and remove the part that checks
for no shared faces?

Or does someone know an easier already implemented way?

-Kurt
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From bill.lorensen at gmail.com  Wed Nov  1 18:39:32 2017
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Wed, 1 Nov 2017 15:39:32 -0700
Subject: [vtkusers] Example for vtkProjectedTexture usage
In-Reply-To: <SG2PR06MB0855AE6AD07AC1E2EC703234FD5E0@SG2PR06MB0855.apcprd06.prod.outlook.com>
References: <SG2PR06MB0855AE6AD07AC1E2EC703234FD5E0@SG2PR06MB0855.apcprd06.prod.outlook.com>
Message-ID: <CADZJ4hMOJa3tgbuNy18QjMm9Dc1gA-NZ68-sj022Uh1KjooJ_A@mail.gmail.com>

I just added an example...
https://lorensen.github.io/VTKExamples/site/Cxx/Texture/ProjectedTexture/


On Tue, Oct 31, 2017 at 1:39 AM, Yeshwanth, Chandan
<chandan.yeshwanth at siemens.com> wrote:
> Hi,
>
>
>
> Can someone please provide an example for the usage of the
> vtkProjectedTexture class
> (https://www.vtk.org/doc/nightly/html/classvtkProjectedTexture.html)?
>
> My problem: I have a pattern image in PNG format that I want to project onto
> a 3D object. I believe this is the right class to use. If this not the right
> class to use, can you please point me to the appropriate class?
>
>
>
> Thanks,
>
> Chandan
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



-- 
Unpaid intern in BillsBasement at noware dot com

From iamdpak at gmail.com  Thu Nov  2 00:48:06 2017
From: iamdpak at gmail.com (vinmean)
Date: Wed, 1 Nov 2017 21:48:06 -0700 (MST)
Subject: [vtkusers] How to achieve the screen shot with VTK
In-Reply-To: <CADZJ4hPXBESR88J1R-egtXSufUDLJMOZDo6yro32ERStcQuU5w@mail.gmail.com>
References: <201304151530411020876@163.com>
 <CADZJ4hPXBESR88J1R-egtXSufUDLJMOZDo6yro32ERStcQuU5w@mail.gmail.com>
Message-ID: <1509598086989-0.post@n5.nabble.com>

You can convert the image data into opencv Mat. Then you can save it in any
format.

cv::Mat screenshot()
{

	vtkSmartPointer<vtkWindowToImageFilter> wif =
vtkSmartPointer<vtkWindowToImageFilter>::New();
	wif->SetInput(renderWindow);
	wif->Update();
	vtkImageData* vtkRGBimage = wif->GetOutput();
	int dimsRGBImage[3];
	vtkRGBimage->GetDimensions(dimsRGBImage);
        cv::Mat cvImageRGB (dimsRGBImage[1], dimsRGBImage[0], CV_8UC3,
vtkRGBimage->GetScalarPointer());
        cv::cvtColor( cvImageRGB, cvImageRGB, CV_BGR2RGB); //convert color
        cv::flip( cvImageRGB, cvImageRGB, 0); //align axis with visualizer
	return cvImageRGB;
}



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From chandan.yeshwanth at siemens.com  Thu Nov  2 01:08:17 2017
From: chandan.yeshwanth at siemens.com (chandan)
Date: Wed, 1 Nov 2017 22:08:17 -0700 (MST)
Subject: [vtkusers] Example for vtkProjectedTexture usage
In-Reply-To: <CADZJ4hMOJa3tgbuNy18QjMm9Dc1gA-NZ68-sj022Uh1KjooJ_A@mail.gmail.com>
References: <SG2PR06MB0855AE6AD07AC1E2EC703234FD5E0@SG2PR06MB0855.apcprd06.prod.outlook.com>
 <CADZJ4hMOJa3tgbuNy18QjMm9Dc1gA-NZ68-sj022Uh1KjooJ_A@mail.gmail.com>
Message-ID: <1509599297797-0.post@n5.nabble.com>

Thanks, this helps a lot!



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From wellq.an at gmail.com  Thu Nov  2 01:36:05 2017
From: wellq.an at gmail.com (Anniywell)
Date: Wed, 1 Nov 2017 22:36:05 -0700 (MST)
Subject: [vtkusers] How to create hexahedron polydata?
Message-ID: <1509600965678-0.post@n5.nabble.com>

I have 8 points, how to create hexahedron polydata?



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From tj.corona at kitware.com  Thu Nov  2 08:26:39 2017
From: tj.corona at kitware.com (TJ Corona)
Date: Thu, 2 Nov 2017 08:26:39 -0400
Subject: [vtkusers] How to create hexahedron polydata?
In-Reply-To: <1509600965678-0.post@n5.nabble.com>
References: <1509600965678-0.post@n5.nabble.com>
Message-ID: <66687410-81DA-49F2-8207-4020426318E3@kitware.com>

From the vtk documentation <https://www.vtk.org/doc/nightly/html/classvtkPolyData.html>:

vtkPolyData <https://www.vtk.org/doc/nightly/html/classvtkPolyData.html> represents a geometric structure consisting of vertices, lines, polygons, and/or triangle strips.

Hexahedra are 3-dimensional cells; you cannot put a hexahedron into polydata. You can create an unstructured grid from 8 points <https://www.paraview.org/Wiki/VTK/Examples/Cxx/GeometricObjects/Hexahedron>, and then extract its surface as polydata <https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/DataSetSurfaceFilter>. What exactly are you trying to do?

Thomas J. Corona, Ph.D.
Kitware, Inc.
Senior R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4443

> On Nov 2, 2017, at 1:36 AM, Anniywell <wellq.an at gmail.com> wrote:
> 
> I have 8 points, how to create hexahedron polydata?
> 
> 
> 
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
> 
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
> 
> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
> 
> Search the list archives at: http://markmail.org/search/?q=vtkusers
> 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers

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From pdhahn at compintensehpc.com  Thu Nov  2 16:23:34 2017
From: pdhahn at compintensehpc.com (Paul Douglas Hahn)
Date: Thu, 2 Nov 2017 15:23:34 -0500
Subject: [vtkusers] VTK and SFML
Message-ID: <0585aa7d-b6f9-5dff-918c-4318517e5e41@compintensehpc.com>

Is anyone out there familiar with SFML who might also have some pointers 
on the issue of using it with VTK (i.e., either VTK from SFML or 
vice-versa)?

From bartolomei-luca at virgilio.it  Thu Nov  2 16:39:14 2017
From: bartolomei-luca at virgilio.it (bartolomei-luca at virgilio.it)
Date: Thu, 2 Nov 2017 21:39:14 +0100 (CET)
Subject: [vtkusers] Show 2D plane cut in QVTKWidget
Message-ID: <1895716105.18228031509655154670.JavaMail.httpd@fep-webmail-04>

Hello everyone,

I am facing a problem of representation with VTK in a QT gui.

I have an unstructured grid and I am cutting it with three separate planes (xy, xz, yz). My objective is to show in three different QVTKWidgets the intersections of the planes with the grid. I would like to display the results in 2D in every widget (like an "image", let's say - so I need to avoid rotations).
I have tried to use vtkInteractorStyleImage so far. It works as I expect for the cut in the xy plane, but not in the other two cases. Is there a way to represent the results also in the xz and yz planes? 

I would like to avoid using vtkCamera, because I would like to have as much flexibility as possible. In my specific problem, the grid to be cut can change dimensions a lot from one case to the other.

Thanks for the help.
Best,
Luca
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From jayavardhanravi at outlook.com  Fri Nov  3 09:59:38 2017
From: jayavardhanravi at outlook.com (Jay)
Date: Fri, 3 Nov 2017 06:59:38 -0700 (MST)
Subject: [vtkusers] Simple VTK application running for long time crashes
 with nvoglv32.dll error
Message-ID: <1509717578095-0.post@n5.nabble.com>

I had created a simple VTK application and the run it for long hours (9-12
hrs approx.). 


The application crashes with the nvoglv32.dll error. 
Exception Code: c0000005 - Access violation

The exception occurs whent the Start() function is called i.e.
renderInteractor->Start();
The crash occurs very randomly but always at the Start() function call.

Sample pseudocode:

vtkSource s = new vtksource; 
vtktransform t = new vtktransform;  
vtkpolydatamapper map = new vtkpolydatamapper; 
map->setinputconnection(s->getoutputport()); 
vtkactor act = new vtkactor; 
act->setmapper(map); 
renderer->addActor(act);

renderInteractor->AddObserver(vtkCommand::TimerEvent, callBackClassObject);
// "callBackClassObject" has over ridden the Execute() function
renderInteractor->createRepeatingTimer(1);
*renderInteractor->Start();* // Error occurs at this  line


This issue occurs only after running the vtk event loop for long hours.
Does the VTK use the nvogl32.dll or any other part use this resource
(OpenGL).
Any possible ways to debug this issue.

Any suggestions would be appreciated.

Regards,
Jay




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From stephen.langer at nist.gov  Fri Nov  3 10:10:28 2017
From: stephen.langer at nist.gov (Langer, Stephen A. (Fed))
Date: Fri, 3 Nov 2017 14:10:28 +0000
Subject: [vtkusers] vtk and gtk on macOS
In-Reply-To: <CANwS1=GTExyqRYVi6ZwvqgKnUFdibsSWPYkJoNV1uH0G7SBWHA@mail.gmail.com>
References: <49FDD20F-0AFF-4475-B314-20C78E20EEA9@nist.gov>
 <CANwS1=GTExyqRYVi6ZwvqgKnUFdibsSWPYkJoNV1uH0G7SBWHA@mail.gmail.com>
Message-ID: <5D8DE910-425D-4547-BEB3-81A2F2949F9A@nist.gov>

HI David --

Thanks for the suggestions, which got me started on the right track.

What seems to work is this (somewhat simplified to eliminate some infrastructure):

// Create gtk widget and vtk window
GtkWidget *drawing_area = gtk_drawing_area_new();
vtkSmartPointer<vtkCocoaRenderWindow> render_window = vtkSmartPointer<vtkCocoaRenderWindow>::New();
// Connect to gtk signals.
g_signal_connect(drawing_area, "realize", realize_callback, ..)
g_signal_connect(drawing_area, "configure_event", configure_callback, ?)

// in realize_callback
gtk_widget_realize(drawing_area);
render_window->SetRootWindow(gtk_widget_get_root_window(drawing_area));
GdkWindow gparent = gtk_widget_get_parent_window(drawing_area);
NSView *pid = gdk_quartz_window_get_nsview(gparent);
render_window->SetParentId((void*) pid);

// in configure_callback
// event is a GdkEventConfigure* that's passed in as an argument
// Unlike David's  QWidget example, I do not use the superclass versions of SetSize and SetPosition
render_window->SetSize(event->width, event->height);
render_window->SetPosition(drawing_area->allocation.x, drawing_area->allocation.y);

I also added an expose event callback which just called render_window->Render(), but it doesn't seem to be necessary.

-- Steve

From: David Gobbi <david.gobbi at gmail.com>
Date: Tuesday, October 24, 2017 at 2:56 PM
To: "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
Cc: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] vtk and gtk on macOS

Hi Steve,

Here is some code that I use to bind a VTK window to a QWidget.  My guess is that something similar should work with GTK.  I have been using this on OS X with vtkCocoaRenderWindow.

void BindRenderWindow(vtkRenderWindow *window, QWidget *widget)
{
  // Unmap the window if it is already mapped somewhere else.
  if (window->GetMapped()) {
    window->Finalize();
  }
  // Create the connection
  window->SetWindowId(reinterpret_cast<void *>(widget->winId()));
  // Note that we must call the superclass SetSize()/SetPosition()
  // (we just want to set the member variables, with no side-effects)
  window->vtkRenderWindow::SetSize(widget->width(), widget->height());
  window->vtkRenderWindow::SetPosition(widget->x(), widget->y());
  // Prepare for rendering
  if (widget->isVisible()) {
    window->Start();
  }
  // Call SetSize() again, to synchronize the window to the widget
  window->SetSize(widget->width(), widget->height());
}

Some further notes:
1) I disable Qt's paint engine, so that Qt itself doesn't draw in the window.  GTK may be similar.
2) You probably will not need GtkGLExt (for Qt, I didn't have to use QGLWidget).

 - David



On Tue, Oct 24, 2017 at 12:12 PM, Langer, Stephen A. (Fed) <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>> wrote:
Hi --

Is there a simple way to get vtk to work inside a gtk+2 program on macOS?   If there isn't a simple way, is there a difficult one?

I'm trying to get a program that uses gtk+2 and vtk to work with a modern version of vtk -- I'm upgrading from 5.10.1 to 7.1.1 or 8.0.1.    On Linux, the following code creates a vtk render window and a gtk widget containing it:
    vtkRenderWindow *render_win = vtkRenderWindow::New();
    GtkWidget *drawing_area = gtk_drawing_area_new();
    Display *disp = GDK_DISPLAY();
    render_win->SetDisplayId(disp);
followed eventually by
     XID wid = GDK_WINDOW_XID(drawing_area->window);
     render_win->SetWindowId(wid);
after receiving the gtk "realize" signal on the drawing_area.

On macOS, I'd like to use the Cocoa version of gtk+2 and vtkCocoaRenderWindow, but I can't figure out how to embed the render window into a gtk widget.    All the examples I've found on-line aren't really applicable.

GtkGLExt might be applicable, but it doesn't look like it's being maintained.

An alternative would be to use X11, but native Mac OpenGL doesn't understand X11, so I tried installing mesa from macports , rebuilding vtk with VTK_USE_X instead of VTK_USE_COCOA, and linking to /opt/local/lib instead of /System/Library/Frameworks/OpenGL.framework.  Then I can use the same code as on Linux, but vtk complains about the context not supporting OpenGL 3.2, and then crashes:
  ERROR: In /Users/langer/UTIL/VTK/VTK-7.1.1/Rendering/OpenGL2/vtkTextureObject.cxx, line 440
  vtkTextureObject (0x7f9eafdb1690): failed at glGenTextures 1 OpenGL errors detected
    0 : (1280) Invalid enum

Thanks,
     Steve
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From lasso at queensu.ca  Fri Nov  3 10:48:31 2017
From: lasso at queensu.ca (Andras Lasso)
Date: Fri, 3 Nov 2017 14:48:31 +0000
Subject: [vtkusers] Volume rendering produces rough surface at clipping plane
Message-ID: <BY2PR0701MB1941CDC4A0BFD9B57C597278D85D0@BY2PR0701MB1941.namprd07.prod.outlook.com>

Hi all,

I'm working on visualizing cardiac images using volume rendering. I need to cut into the volume to see surfaces inside the heart, which works quite well by using clipping planes of the volume mapper. The only problem is that that surface at the cut plane looks very rough, which makes it difficult to distinguish from actual endocardial surfaces. If I "cut" the volume by setting voxel values outside the clipping box to "empty" (-1000 = air intensity value) then the cut surface looks nice - smooth and flat. See example for both cutting method in the attached files.

Is there a way to change volume renderer to get smooth cut surfaces (the same look as we get by setting outside voxels to "empty" values)?

Andras

---

See full resolution images and more examples here:
https://1drv.ms/f/s!Arm_AFxB9yqHsOsClG_QsMx-4sh8rg

CT volume can be downloaded from here:
http://slicer.kitware.com/midas3/download/item/292309/CTA-cardio.nrrd

________________________
Andras Lasso, PhD
Senior Research Engineer, Associate Director (Engineering)
Laboratory for Percutaneous Surgery
School of Computing, Queen's University
Kingston, ON, Canada

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From jayavardhanravi at outlook.com  Fri Nov  3 15:29:37 2017
From: jayavardhanravi at outlook.com (Jay)
Date: Fri, 3 Nov 2017 12:29:37 -0700 (MST)
Subject: [vtkusers] VTK sever socket and vtk clent socket
Message-ID: <1509737377702-0.post@n5.nabble.com>

Is there any reference / examples for vtkClientSocket and vtkServerSocket

Regards
Jay



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From beekmaarten at yahoo.com  Fri Nov  3 16:14:08 2017
From: beekmaarten at yahoo.com (Maarten Beek)
Date: Fri, 3 Nov 2017 20:14:08 +0000 (UTC)
Subject: [vtkusers] vtkAlgorithm and vtkExecutive
References: <1834302246.1769049.1509740048835.ref@mail.yahoo.com>
Message-ID: <1834302246.1769049.1509740048835@mail.yahoo.com>

Hi All,
Can some one explain me why I don't see a call setExecutive(0) in the vtkAlgorithm destructor?
I think that in SetExecutive() (also called by GetExecutive()) the executive gets registered in the algorithm and the algorithm gets registered in the executive. If this is true not calling setExecutive(0) in the vtkAlgorithm destructor would cause a memory leak?
Thanks - Maarten
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From simakov.w at gmail.com  Sat Nov  4 07:35:18 2017
From: simakov.w at gmail.com (Met@ll)
Date: Sat, 4 Nov 2017 04:35:18 -0700 (MST)
Subject: [vtkusers] Rotate the vector along the X, Y, Z axes.
Message-ID: <1509795318033-0.post@n5.nabble.com>

Rotate the vector along the X, Y, Z axes.
Hello.
For what day I can not turn the actor on the axes X, Y, Z.
There are angles, but it is not possible to calculate the rotation matrix?
How can I do that? Someone faced such a problem?



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From andrew.amaclean at gmail.com  Sat Nov  4 17:49:10 2017
From: andrew.amaclean at gmail.com (Andrew Maclean)
Date: Sun, 5 Nov 2017 08:49:10 +1100
Subject: [vtkusers]
	=?utf-8?q?=E2=80=8B__Rotate_the_vector_along_the_X=2C_?=
	=?utf-8?q?Y=2C_Z_axes=2E?=
Message-ID: <CAHDsG9N8CofxFoN0Gsw2T8aqUd2sbUuwtbwSNNx5ijM90bOs5w@mail.gmail.com>

If you look at https://www.vtk.org/doc/nightly/html/classvtkActor.html you
will see that vtkActor  inherits from the abstract class vtkProp3d:
https://www.vtk.org/doc/nightly/html/classvtkProp3D.html so all the public
member functions defined here are available.

This should get you going:
//---------------------------------------------------------------
#include <vtkActor.h>
#include <vtkMatrix4x4.h>



  // Set up your actor
  vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
  // ...

  // Here's how to set the orientation of the actor.
  actor->RotateX(12);
  actor->RotateY(2);
  actor->RotateZ(-13);
  // Here's how to get the rotation matrix etc.
  vtkSmartPointer<vtkMatrix4x4> m = vtkSmartPointer<vtkMatrix4x4>::New();
  actor->GetMatrix(m);
  double * orient;
  orient = actor->GetOrientationWXYZ();
//---------------------------------------------------------------

I'll add an example to VTK Examples
https://lorensen.github.io/VTKExamples/site/

Andrew


---------- Forwarded message ----------
> From: "Met at ll" <simakov.w at gmail.com>
> To: vtkusers at vtk.org
> Cc:
> Bcc:
> Date: Sat, 4 Nov 2017 04:35:18 -0700 (MST)
> Subject:
> ??
>  [vtkusers] Rotate the vector along the X, Y, Z axes.
> Rotate the vector along the X, Y, Z axes.
> Hello.
> For what day I can not turn the actor on the axes X, Y, Z.
> There are angles, but it is not possible to calculate the rotation matrix?
> How can I do that? Someone faced such a problem?
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



-- 
___________________________________________
Andrew J. P. Maclean

___________________________________________
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From andrew.amaclean at gmail.com  Sat Nov  4 18:00:05 2017
From: andrew.amaclean at gmail.com (Andrew Maclean)
Date: Sun, 5 Nov 2017 09:00:05 +1100
Subject: [vtkusers]
	=?utf-8?q?=E2=80=8B__Rotate_the_vector_along_the_X=2C_?=
	=?utf-8?q?Y=2C_Z_axes=2E?=
In-Reply-To: <CAHDsG9N8CofxFoN0Gsw2T8aqUd2sbUuwtbwSNNx5ijM90bOs5w@mail.gmail.com>
References: <CAHDsG9N8CofxFoN0Gsw2T8aqUd2sbUuwtbwSNNx5ijM90bOs5w@mail.gmail.com>
Message-ID: <CAHDsG9N7Xhqie3LbOqqB0NEucTShRTsh_j20zjQ6S++zWsD42w@mail.gmail.com>

This example:
https://lorensen.github.io/VTKExamples/site/Cxx/GeometricObjects/OrientedArrow/
may be useful.


On Sun, Nov 5, 2017 at 8:49 AM, Andrew Maclean <andrew.amaclean at gmail.com>
wrote:

> If you look at https://www.vtk.org/doc/nightly/html/classvtkActor.html
> you will see that vtkActor  inherits from the abstract class vtkProp3d:
> https://www.vtk.org/doc/nightly/html/classvtkProp3D.html so all the
> public member functions defined here are available.
>
> This should get you going:
> //---------------------------------------------------------------
> #include <vtkActor.h>
> #include <vtkMatrix4x4.h>
>
>
>
>   // Set up your actor
>   vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
>   // ...
>
>   // Here's how to set the orientation of the actor.
>   actor->RotateX(12);
>   actor->RotateY(2);
>   actor->RotateZ(-13);
>   // Here's how to get the rotation matrix etc.
>   vtkSmartPointer<vtkMatrix4x4> m = vtkSmartPointer<vtkMatrix4x4>::New();
>   actor->GetMatrix(m);
>   double * orient;
>   orient = actor->GetOrientationWXYZ();
> //---------------------------------------------------------------
>
> I'll add an example to VTK Examples https://lorensen.
> github.io/VTKExamples/site/
>
> Andrew
>
>
> ---------- Forwarded message ----------
>> From: "Met at ll" <simakov.w at gmail.com>
>> To: vtkusers at vtk.org
>> Cc:
>> Bcc:
>> Date: Sat, 4 Nov 2017 04:35:18 -0700 (MST)
>> Subject:
>> ??
>>  [vtkusers] Rotate the vector along the X, Y, Z axes.
>> Rotate the vector along the X, Y, Z axes.
>> Hello.
>> For what day I can not turn the actor on the axes X, Y, Z.
>> There are angles, but it is not possible to calculate the rotation matrix?
>> How can I do that? Someone faced such a problem?
>>
>>
>>
>> --
>> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
>>
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/vtkusers
>>
>
>
>
> --
> ___________________________________________
> Andrew J. P. Maclean
>
> ___________________________________________
>



-- 
___________________________________________
Andrew J. P. Maclean

___________________________________________
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From landinghere at 163.com  Sun Nov  5 09:07:50 2017
From: landinghere at 163.com (landings)
Date: Sun, 5 Nov 2017 07:07:50 -0700 (MST)
Subject: [vtkusers] My vtkDecimatePro result is problematic. What is the
	best approach?
Message-ID: <1509890870318-0.post@n5.nabble.com>

<http://vtk.1045678.n5.nabble.com/file/t342072/hhh.jpg> 

My mesh seems to have missing triangles when vtkDecimatePro is applied. Is
there a way to preserve a closed surface?

I have the following options:

PreserveTopologyOff();
SplittingOn();
BoundaryVertexDeletionOn();



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From bill.lorensen at gmail.com  Sun Nov  5 12:33:52 2017
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Sun, 5 Nov 2017 12:33:52 -0500
Subject: [vtkusers] My vtkDecimatePro result is problematic. What is the
 best approach?
In-Reply-To: <1509890870318-0.post@n5.nabble.com>
References: <1509890870318-0.post@n5.nabble.com>
Message-ID: <CADZJ4hPBMaMizZKubU+JgV9ULOdb99k6DJRZk-EF0hSKbBbYNg@mail.gmail.com>

PreserveTopologyOn

On Nov 5, 2017 9:07 AM, "landings" <landinghere at 163.com> wrote:

> <http://vtk.1045678.n5.nabble.com/file/t342072/hhh.jpg>
>
> My mesh seems to have missing triangles when vtkDecimatePro is applied. Is
> there a way to preserve a closed surface?
>
> I have the following options:
>
> PreserveTopologyOff();
> SplittingOn();
> BoundaryVertexDeletionOn();
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
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From landinghere at 163.com  Sun Nov  5 23:12:44 2017
From: landinghere at 163.com (landings)
Date: Sun, 5 Nov 2017 21:12:44 -0700 (MST)
Subject: [vtkusers] My vtkDecimatePro result is problematic. What is the
 best approach?
In-Reply-To: <CADZJ4hPBMaMizZKubU+JgV9ULOdb99k6DJRZk-EF0hSKbBbYNg@mail.gmail.com>
References: <1509890870318-0.post@n5.nabble.com>
 <CADZJ4hPBMaMizZKubU+JgV9ULOdb99k6DJRZk-EF0hSKbBbYNg@mail.gmail.com>
Message-ID: <1509941564365-0.post@n5.nabble.com>

I have tried PreserveTopologyOn(), but that doesn't make much difference,
except that the maximum reduction is limited. There are still missing
triangles.

<http://vtk.1045678.n5.nabble.com/file/t342072/hhh2.jpg> 



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From vijayarani.shanmugavadivu at appasamy.com  Mon Nov  6 06:39:43 2017
From: vijayarani.shanmugavadivu at appasamy.com (Vijaya Rani)
Date: Mon, 6 Nov 2017 04:39:43 -0700 (MST)
Subject: [vtkusers] Fwd: Application hangs while loading vtp files with vtk
	7.1.1
Message-ID: <1509968383102-0.post@n5.nabble.com>

Hi
We have an issue while loading large vtp files(for the file size 101MB and
1189985 points) using vtkUnstructuredGridReader using vtk 7.1.1 whereas its
working in vtk7.0.0 without any issues.The application hangs while
processing vtkUnstructuredGridReader->Update() method. Kindly help us to fix
this issue.

Thanks & Regrads
Vijaya Rani S



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From mlitterio at pccube.com  Mon Nov  6 09:44:11 2017
From: mlitterio at pccube.com (Martina Litterio)
Date: Mon, 6 Nov 2017 15:44:11 +0100
Subject: [vtkusers] Opacity problems with vtkOSPRayPass
Message-ID: <CAAUP0tvdCi4Fa4qSCW6cM7PK+3=fcvofOPPYcxhHG0aNRyFRyQ@mail.gmail.com>

Hi all!

I have a problem using vtkOSPRayPass. I'm reading a DICOM series with
vtkDICOMImageReader.

My code is :

..bla bla bla

vtkNew<vtkGPUVolumeRayCastMapper> volumeMapper;

    volumeMapper->SetAutoAdjustSampleDistances(0);

    volumeMapper->SetSampleDistance(0.5);



    vtkDICOMImageReader* reader = vtkDICOMImageReader::New();

    reader->SetDirectoryName("Path/to/my/DICOM");

    reader->Update();

    volumeMapper->SetInputConnection(reader->GetOutputPort());



    volumeMapper->AddObserver(vtkCommand::ErrorEvent, errorObserver);

   vtkNew<vtkPiecewiseFunction> pwf;

    pwf->AddPoint(-3024, 0.0);

    pwf->AddPoint(-16, 0.0);

    pwf->AddPoint(641, 0.05);

    pwf->AddPoint(3071, 0.1);



    ctf->AddRGBPoint( -3024, 0, 0, 0, 0.5, 0.0 );

    ctf->AddRGBPoint( -16, 0.73, 0.25, 0.30, 0.49, .61 );

    ctf->AddRGBPoint( 641, .90, .82, .56, .5, 0.0 );

    ctf->AddRGBPoint( 3071, 1, 1, 1, .5, 0.0 );



    volumeProperty->SetColor(ctf);

    volumeProperty->SetScalarOpacity(pwf);

    volumeProperty->SetShade(0);

    volumeProperty->SetScalarOpacityUnitDistance(1.732);



    vtkNew<vtkVolume> volume;

    volume->SetMapper(volumeMapper);

    volume->SetProperty(volumeProperty);



    // Create the renderwindow, interactor and renderer

    vtkNew<vtkRenderWindow> renderWindow;

    renderWindow->SetMultiSamples(0);

    renderWindow->SetSize(401, 399); // NPOT size



    vtkNew<vtkRenderer> renderer;

    renderer->SetBackground(0.3, 0.3, 0.4);

    renderWindow->AddRenderer(renderer);



    renderer->AddVolume(volume);

    renderer->ResetCamera();

    renderWindow->Render();



    // Attach OSPRay render pass

    vtkNew<vtkOSPRayPass> osprayPass;

    if (useOSP)

    {

        renderer->SetPass(osprayPass);

    }

   vtkNew<vtkRenderWindowInteractor> iren;

    iren->SetRenderWindow(renderWindow);

    vtkNew<vtkInteractorStyleTrackballCamera> style;

    iren->SetInteractorStyle(style);

    iren->Start();

... bla bla bla


Now, the problem is the following. If "useOSP"==FALSE, I have a certain
opacity (the which one I would like to have in my results); if
"useOSP"==TRUE, I have a different opacity and I'm not able to manage it as
I want.

Can you please tell me what's wrong in my code?


?Thanks to everyone!?


*Martina Li**tterio*
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From baljci at hotmail.com  Mon Nov  6 10:56:19 2017
From: baljci at hotmail.com (Boris Basic)
Date: Mon, 6 Nov 2017 15:56:19 +0000
Subject: [vtkusers] Issues using QVTKOpenGLWidget
In-Reply-To: <CAEcL5t5xm8ruODDV-LzJoWrY-mvF53TcAYFH=iH+QsodosY+Gw@mail.gmail.com>
References: <AM5PR0601MB23061DC44BF9BE9777AEFC03C0590@AM5PR0601MB2306.eurprd06.prod.outlook.com>,
 <CAEcL5t5xm8ruODDV-LzJoWrY-mvF53TcAYFH=iH+QsodosY+Gw@mail.gmail.com>
Message-ID: <AM5PR0601MB2306A6721330DC1B221942A2C0500@AM5PR0601MB2306.eurprd06.prod.outlook.com>

Hi Sankhesh,


Disabling multisampling fixes the problem regarding the vtkHardwareSelector, however I prefer to keep it enabled to get a decent image quality. I know that the hardware selector is not supposed to work with mulsisampling on, however it worked with the following trick I:


vtkNew<vtkHardwareSelector> selector;
... // Setup the selector
renderWindow->OffScreenRenderingOn();
vtkSmartPointer<vtkSelection> selection = selector->Select();
renderWindow->OffScreenRenderingOff();

I understand though that this does not work anymore with the internal FBO used by QVTKOpenGLWidget. Do you think it could in the future?

Cheers,
Boris


________________________________
De : Sankhesh Jhaveri <sankhesh.jhaveri at kitware.com>
Envoy? : mercredi 1 novembre 2017 18:12
? : Boris Basic
Cc : vtk vtk
Objet : Re: [vtkusers] Issues using QVTKOpenGLWidget


Hi Boris,

Regarding the vtkHardwareSelector issue, try disabling multisampling on the QSurfaceFormat before setting the default surface format.

QSurfaceFormat fmt = QVTKOpenGLWidget::defaultFormat();
fmt.setSamples(0);
QSurfaceFormat::setDefaultFormat(fmt);


Hope that helps.

Cheers,
Sankhesh

On Mon, Oct 30, 2017 at 12:54 PM Boris Basic <baljci at hotmail.com<mailto:baljci at hotmail.com>> wrote:

Hi,


I'm currently porting an existing finite element mesh analysis application from VTK 7.0 to VTK 8.x (actually the last master to be ready for the upcoming 8.1 version). But when switching to the new QVTKOpenGLWidget, I encountered too issues, one relatively minor, the other pretty annoying.


The first and biggest problem is selection, both using vtkHardwareSelector from surface selection, and the vtkRenderedAreaPicker for frustum selection. The vtkHardwareSelector sometimes simply fails to select the points properly, whereas it always worked with the previous QVTKWidget. Unfortunately, it's very random, and I can't manage to get a working example showing the issue on each selection. For the vtkRenderedAreaPicker, the problem is that the render window becomes black while the picker is working.


The second and minor issue, the first I encountered, concerns a transparency problem with the new widget rendering. Lines seems to blend with the background. I opened an issue here for that one: https://gitlab.kitware.com/vtk/vtk/issues/17154. It's not as important as the selection bug, but it was the first issue I saw. It is only visible when multisampling is enabled.


Boris


_______________________________________________
Powered by www.kitware.com<http://www.kitware.com>

Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ

Search the list archives at: http://markmail.org/search/?q=vtkusers

Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/vtkusers
--
Sankhesh Jhaveri
Sr. Research & Development Engineer | Kitware<http://www.kitware.com/> | (518) 881-4417
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From dave.demarle at kitware.com  Mon Nov  6 19:24:41 2017
From: dave.demarle at kitware.com (David E DeMarle)
Date: Mon, 6 Nov 2017 19:24:41 -0500
Subject: [vtkusers] Shadow support on volume rendering
In-Reply-To: <1509469501231-0.post@n5.nabble.com>
References: <CAEw35Z8o_+-DTzQqM6780rWPjHQ2Ui=6Eyxa7nKYz9PZjPvsYA@mail.gmail.com>
 <1472803169307-5740103.post@n5.nabble.com>
 <CANjZAi-w78-MAaUK7mAEHSnY_7vrN3w3XKgeDPRmas2_2ZMEWA@mail.gmail.com>
 <CANjZAi-q+Vv+2J5=OV==B8uecXHYFhusag253j23cF5vf+B4Mg@mail.gmail.com>
 <7002df66-ddbd-071b-79bc-272a98a799ce@insigniamedical.co.uk>
 <CANjZAi8ijx1Nuwb3eTRX4wOWHtQGYkfETLF8FZ3vR6_G8NfXJg@mail.gmail.com>
 <1509119924385-0.post@n5.nabble.com>
 <CANjZAi9XV=fZ=2G_xoxBcT0ycq_8rTx5+j0z6PaQ+WuhZCUBnw@mail.gmail.com>
 <CANjZAi9HsmhfyaF26TTKMf4nh+ypj52zOQA5MtyUGMKwsCHRFg@mail.gmail.com>
 <1509465934854-0.post@n5.nabble.com> <1509469501231-0.post@n5.nabble.com>
Message-ID: <CANjZAi_stmOTvcx5hQ9L-ResBZUZ9n+ZNZZa3Lw+tws9mEZB_g@mail.gmail.com>

I wouldn't worry too much about those two failing tests. I've seen them
fail occasionally (failing on some of the VTK dashboard submitters
currently), but I've yet to track it down. If the rest of the OSPRay*Volume
tests work you should be pretty OK.

Yes LUTs and in general appearance controls should work about the same.

Would you mind sharing the data with me offline so I can take a look?

David E DeMarle
Kitware, Inc.
Principal Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909

On Tue, Oct 31, 2017 at 1:05 PM, ianl <ilindsay at insigniamedical.co.uk>
wrote:

> Ok, Looks like the light creation exception was a red herring. This was due
> to a rogue old opsray dll in my debug directory (presumably from an earlier
> attempt at getting this working). I have removed this and verified that the
> correct dlls are getting loaded with Depends.
>
> I am still seeing a black image, but now no exception or debug output. Are
> there any areas I could look at to try to get to the bottom of this? Am I
> right in expecting the LUTs, etc that I am using for the GPU render pathway
> to function in the same way for OSPRay (just with ray traced results rather
> than ray casting)?
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
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From frank1985876 at gmail.com  Tue Nov  7 02:50:21 2017
From: frank1985876 at gmail.com (frank)
Date: Tue, 7 Nov 2017 15:50:21 +0800
Subject: [vtkusers] how to create a vtkDataSet according to the type of the
	input
Message-ID: <E6398104-59D3-40E2-8633-10FE99A9A8A9@gmail.com>

Hi, all

If I want to create a vtkDataSet according to type of the input (vtkDataSet*), I can do that with the code below.
Is there any way to get rid of those if-else? Any way like vtkDataArray do? vtkDataArray* a = vtkDataArray::CreateDataArray(array->GetDataType()); 

//----------------
vtkDataSet *data;
if (input->IsA("vtkImageData"))
    data = vtkImageData::New();
else if (input->IsA("vtkStructuredGrid"))
    data = vtkStructuredGrid::New();
?
//----------------

Thank you!


From kor1581 at gmail.com  Tue Nov  7 04:30:19 2017
From: kor1581 at gmail.com (K O ranjith)
Date: Tue, 7 Nov 2017 15:00:19 +0530
Subject: [vtkusers] vtk zoom indicator
In-Reply-To: <CAEcL5t4cFBB0c_74tsoFxtPyriwx6F2NVCsTwtdV7n7EwcvZ5w@mail.gmail.com>
References: <CANuVs=LLJwQCtkk1bCA=C532+zOc9UUNw8ned0se_vVqQ-+4bA@mail.gmail.com>
 <CAEcL5t4cFBB0c_74tsoFxtPyriwx6F2NVCsTwtdV7n7EwcvZ5w@mail.gmail.com>
Message-ID: <CANuVs=+X6yqtTTU4LAK=F8QkqDE9Rjodh5FutWLJ9tNngVJaRQ@mail.gmail.com>

Hello,
Thanks, it's  working.
Can I get the measured value (which is displayed as label axis) from
vtkLegendScaleActor object.

Ranjith KO

On Fri, Jun 23, 2017 at 7:52 PM, Sankhesh Jhaveri <
sankhesh.jhaveri at kitware.com> wrote:

> Take a look at vtkLegendScaleActor
> <http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/LegendScaleActor>.
> It uses vtkAxisActor
> <http://www.vtk.org/doc/nightly/html/classvtkAxisActor.html> internally.
>
> Hth,
> Sankhesh
> ?
>
> On Fri, Jun 23, 2017 at 1:55 AM K O ranjith <kor1581 at gmail.com> wrote:
>
>> I'm using vtk for developing a MRI DICOM Image viewer in Qt.
>> The viewer uses vtkDICOMImageReader,  vtkImageViewer2 & QVTKWidget.
>> I need to show a zoom indicator line which varies length with zoom value
>> and need not affect other operation like rotate, pan( which is used for
>> DICOM image in same window). It's position should be fixed at side of
>> viewer and should not alter with zoom, pan, rotate.
>> I added an line as an vtkactor  to the renderer using vtkLineSource.
>>  Its length altering  with zoom as I intended, but problem is its
>> position also altering with the zoom, also rotate and Pan affecting on it.
>> How can I make the position of the line fixed at side of the viewer.
>> Have any option in vtk for visual indication of zoom factor something
>> like vtkOrientationMarkerWidget for orientation...
>>
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at http://www.kitware.com/
>> opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/vtkusers
>>
> --
> Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
> <http://www.kitware.com/> | (518) 881-4417
> ?
>
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From dave.demarle at kitware.com  Tue Nov  7 06:05:36 2017
From: dave.demarle at kitware.com (David E DeMarle)
Date: Tue, 7 Nov 2017 06:05:36 -0500
Subject: [vtkusers] how to create a vtkDataSet according to the type of
 the input
In-Reply-To: <E6398104-59D3-40E2-8633-10FE99A9A8A9@gmail.com>
References: <E6398104-59D3-40E2-8633-10FE99A9A8A9@gmail.com>
Message-ID: <CANjZAi-VmzE_iMUzJZvB1YsE-876PYHiA2XciW2Z9hk7jnE_4w@mail.gmail.com>

Try data->NewInstance()

On Nov 7, 2017 3:03 AM, "frank" <frank1985876 at gmail.com> wrote:

> Hi, all
>
> If I want to create a vtkDataSet according to type of the input
> (vtkDataSet*), I can do that with the code below.
> Is there any way to get rid of those if-else? Any way like vtkDataArray
> do? vtkDataArray* a = vtkDataArray::CreateDataArray(array->GetDataType());
>
> //----------------
> vtkDataSet *data;
> if (input->IsA("vtkImageData"))
>     data = vtkImageData::New();
> else if (input->IsA("vtkStructuredGrid"))
>     data = vtkStructuredGrid::New();
> ?
> //----------------
>
> Thank you!
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
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From seb.an at icloud.com  Tue Nov  7 08:34:53 2017
From: seb.an at icloud.com (sebastian_a)
Date: Tue, 7 Nov 2017 06:34:53 -0700 (MST)
Subject: [vtkusers] Solidify vtkPolyData
In-Reply-To: <CAJk8dSCrUWApuA=L0XVF9Tf1bKt9q1AfiDdUOP3MoWNBm3ieAw@mail.gmail.com>
References: <1507156428979-0.post@n5.nabble.com>
 <CAJk8dSCrUWApuA=L0XVF9Tf1bKt9q1AfiDdUOP3MoWNBm3ieAw@mail.gmail.com>
Message-ID: <1510061693067-0.post@n5.nabble.com>

Hi, thanks for the reply.

I now used the vtkImplicitModeller like in this example:
https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/ImplicitModeller

Also I use it in combination with a stencil, created out of my input
PolyData, to solidify it just outside the model.

Unfortunately it still isn't very precise and also it's not perfectly what I
wanted. The blender solidify modifier really takes care that for example one
face will become a solid box with the same dimensions in two directions and
will be just solidified in it's flat direction. Using the
vtkImplicitModeller Filter the face will become a model with rounded corners
and larger dimensions in all directions.

Still didn't find the perfekt solution.

Thanks,
Sebastian



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From bill.lorensen at gmail.com  Tue Nov  7 09:14:43 2017
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Tue, 7 Nov 2017 09:14:43 -0500
Subject: [vtkusers] Solidify vtkPolyData
In-Reply-To: <1510061693067-0.post@n5.nabble.com>
References: <1507156428979-0.post@n5.nabble.com>
 <CAJk8dSCrUWApuA=L0XVF9Tf1bKt9q1AfiDdUOP3MoWNBm3ieAw@mail.gmail.com>
 <1510061693067-0.post@n5.nabble.com>
Message-ID: <CADZJ4hNOcW+=JQCnZXT+UH1gVKVW6Vuj7NzximFY-yLp+FbueQ@mail.gmail.com>

Try this:
https://lorensen.github.io/VTKExamples/site/Cxx/Meshes/FillHoles/


On Tue, Nov 7, 2017 at 8:34 AM, sebastian_a <seb.an at icloud.com> wrote:
> Hi, thanks for the reply.
>
> I now used the vtkImplicitModeller like in this example:
> https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/ImplicitModeller
>
> Also I use it in combination with a stencil, created out of my input
> PolyData, to solidify it just outside the model.
>
> Unfortunately it still isn't very precise and also it's not perfectly what I
> wanted. The blender solidify modifier really takes care that for example one
> face will become a solid box with the same dimensions in two directions and
> will be just solidified in it's flat direction. Using the
> vtkImplicitModeller Filter the face will become a model with rounded corners
> and larger dimensions in all directions.
>
> Still didn't find the perfekt solution.
>
> Thanks,
> Sebastian
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers



-- 
Unpaid intern in BillsBasement at noware dot com

From sankhesh.jhaveri at kitware.com  Tue Nov  7 11:07:32 2017
From: sankhesh.jhaveri at kitware.com (Sankhesh Jhaveri)
Date: Tue, 07 Nov 2017 16:07:32 +0000
Subject: [vtkusers] vtk zoom indicator
In-Reply-To: <CANuVs=+X6yqtTTU4LAK=F8QkqDE9Rjodh5FutWLJ9tNngVJaRQ@mail.gmail.com>
References: <CANuVs=LLJwQCtkk1bCA=C532+zOc9UUNw8ned0se_vVqQ-+4bA@mail.gmail.com>
 <CAEcL5t4cFBB0c_74tsoFxtPyriwx6F2NVCsTwtdV7n7EwcvZ5w@mail.gmail.com>
 <CANuVs=+X6yqtTTU4LAK=F8QkqDE9Rjodh5FutWLJ9tNngVJaRQ@mail.gmail.com>
Message-ID: <CAEcL5t6x-_cyJAEL7cLQ7uMbm50GDWFAVr2bN7nRy-=BecL=uw@mail.gmail.com>

There?s no direct API but you can calculate it. All you have to do is
compute the length of the axis in world coordinates.

Something like this:

double * leftPoint =
axis->GetPositionCoordinate()->GetComputedWorldValue(renderer);double
* rightPoint = axis->GetPosition2Coordinate()->GetComputedWorldValue(renderer);double
distance = vtkMath::sqrt(vtkMath::Distance2BetweenPoints(leftPoint,
rightPoint));// Scale is 1 : distance

Hope that helps.

Best,
Sankhesh
?

On Tue, Nov 7, 2017 at 4:30 AM K O ranjith <kor1581 at gmail.com> wrote:

> Hello,
> Thanks, it's  working.
> Can I get the measured value (which is displayed as label axis) from
> vtkLegendScaleActor object.
>
> Ranjith KO
>
> On Fri, Jun 23, 2017 at 7:52 PM, Sankhesh Jhaveri <
> sankhesh.jhaveri at kitware.com> wrote:
>
>> Take a look at vtkLegendScaleActor
>> <http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/LegendScaleActor>.
>> It uses vtkAxisActor
>> <http://www.vtk.org/doc/nightly/html/classvtkAxisActor.html> internally.
>>
>> Hth,
>> Sankhesh
>> ?
>>
>> On Fri, Jun 23, 2017 at 1:55 AM K O ranjith <kor1581 at gmail.com> wrote:
>>
>>> I'm using vtk for developing a MRI DICOM Image viewer in Qt.
>>> The viewer uses vtkDICOMImageReader,  vtkImageViewer2 & QVTKWidget.
>>> I need to show a zoom indicator line which varies length with zoom
>>> value and need not affect other operation like rotate, pan( which is used
>>> for DICOM image in same window). It's position should be fixed at side of
>>> viewer and should not alter with zoom, pan, rotate.
>>> I added an line as an vtkactor  to the renderer using vtkLineSource.
>>>  Its length altering  with zoom as I intended, but problem is its
>>> position also altering with the zoom, also rotate and Pan affecting on it.
>>> How can I make the position of the line fixed at side of the viewer.
>>> Have any option in vtk for visual indication of zoom factor something
>>> like vtkOrientationMarkerWidget for orientation...
>>>
>>>
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the VTK FAQ at:
>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>
>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> http://public.kitware.com/mailman/listinfo/vtkusers
>>>
>> --
>> Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
>> <http://www.kitware.com/> | (518) 881-4417
>> ?
>>
>
> --
Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
<http://www.kitware.com/> | (518) 881-4417
?
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From alvaro.sanchez at kitware.com  Tue Nov  7 11:23:37 2017
From: alvaro.sanchez at kitware.com (Alvaro Sanchez)
Date: Tue, 7 Nov 2017 11:23:37 -0500
Subject: [vtkusers] Issues using QVTKOpenGLWidget
In-Reply-To: <AM5PR0601MB2306A6721330DC1B221942A2C0500@AM5PR0601MB2306.eurprd06.prod.outlook.com>
References: <AM5PR0601MB23061DC44BF9BE9777AEFC03C0590@AM5PR0601MB2306.eurprd06.prod.outlook.com>
 <CAEcL5t5xm8ruODDV-LzJoWrY-mvF53TcAYFH=iH+QsodosY+Gw@mail.gmail.com>
 <AM5PR0601MB2306A6721330DC1B221942A2C0500@AM5PR0601MB2306.eurprd06.prod.outlook.com>
Message-ID: <CADM17uMVCkg-c9sztUSR2+ESQ16eoKnwF0tVpsF+3Ty8CsBk8w@mail.gmail.com>

As an alternative to multisampling, you could enable FXAA in vtkRenderer.
I think this would not interfere with hardware
selection.

https://www.vtk.org/doc/nightly/html/classvtkRenderer.html#a3f46ed85e17e5e297e6c3b02be07ebba



On Mon, Nov 6, 2017 at 10:56 AM, Boris Basic <baljci at hotmail.com> wrote:

> Hi Sankhesh,
>
>
> Disabling multisampling fixes the problem regarding the
> vtkHardwareSelector, however I prefer to keep it enabled to get a decent
> image quality. I know that the hardware selector is not supposed to work
> with mulsisampling on, however it worked with the following trick I:
>
>
> vtkNew<vtkHardwareSelector> selector;
> ... // Setup the selector
> renderWindow->OffScreenRenderingOn();
> vtkSmartPointer<vtkSelection> selection = selector->Select();
> renderWindow->OffScreenRenderingOff();
>
> I understand though that this does not work anymore with the internal FBO
> used by QVTKOpenGLWidget. Do you think it could in the future?
>
> Cheers,
> Boris
>
> ------------------------------
> *De :* Sankhesh Jhaveri <sankhesh.jhaveri at kitware.com>
> *Envoy? :* mercredi 1 novembre 2017 18:12
> *? :* Boris Basic
> *Cc :* vtk vtk
> *Objet :* Re: [vtkusers] Issues using QVTKOpenGLWidget
>
>
> Hi Boris,
>
> Regarding the vtkHardwareSelector issue, try disabling multisampling on
> the QSurfaceFormat before setting the default surface format.
>
> QSurfaceFormat fmt = QVTKOpenGLWidget::defaultFormat();
> fmt.setSamples(0);
> QSurfaceFormat::setDefaultFormat(fmt);
>
> Hope that helps.
>
> Cheers,
> Sankhesh
>
> On Mon, Oct 30, 2017 at 12:54 PM Boris Basic <baljci at hotmail.com> wrote:
>
> Hi,
>
>
> I'm currently porting an existing finite element mesh analysis application
> from VTK 7.0 to VTK 8.x (actually the last master to be ready for the
> upcoming 8.1 version). But when switching to the new QVTKOpenGLWidget, I
> encountered too issues, one relatively minor, the other pretty annoying.
>
>
> The first and biggest problem is selection, both using vtkHardwareSelector
> from surface selection, and the vtkRenderedAreaPicker for frustum
> selection. The vtkHardwareSelector sometimes simply fails to select the
> points properly, whereas it always worked with the previous QVTKWidget.
> Unfortunately, it's very random, and I can't manage to get a working
> example showing the issue on each selection. For the vtkRenderedAreaPicker,
> the problem is that the render window becomes black while the picker is
> working.
>
>
> The second and minor issue, the first I encountered, concerns a
> transparency problem with the new widget rendering. Lines seems to blend
> with the background. I opened an issue here for that one:
> https://gitlab.kitware.com/vtk/vtk/issues/17154. It's not as important as
> the selection bug, but it was the first issue I saw. It is only visible
> when multisampling is enabled.
>
>
> Boris
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
> --
> Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
> <http://www.kitware.com/> | (518) 881-4417
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>


-- 
Alvaro Sanchez
Kitware, Inc.
Senior R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4901
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From simakov.w at gmail.com  Tue Nov  7 13:36:59 2017
From: simakov.w at gmail.com (Met@ll)
Date: Tue, 7 Nov 2017 11:36:59 -0700 (MST)
Subject: [vtkusers]
	=?utf-8?q?=E2=80=8B__Rotate_the_vector_along_the_X=2C_?=
	=?utf-8?q?Y=2C_Z_axes=2E?=
In-Reply-To: <CAHDsG9N7Xhqie3LbOqqB0NEucTShRTsh_j20zjQ6S++zWsD42w@mail.gmail.com>
References: <CAHDsG9N8CofxFoN0Gsw2T8aqUd2sbUuwtbwSNNx5ijM90bOs5w@mail.gmail.com>
 <CAHDsG9N7Xhqie3LbOqqB0NEucTShRTsh_j20zjQ6S++zWsD42w@mail.gmail.com>
Message-ID: <1510079819282-0.post@n5.nabble.com>

Andrew Maclean-3, thanks for the help.
But I still do not understand how to get right rotation ...
The fact is that after you rotate along one axis, the other axes also shift
and a wrong turn occurs.
Below is an example from Wikipedia, in VTK also?
<http://vtk.1045678.n5.nabble.com/file/t342088/Euler2a.gif> 



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From frank1985876 at gmail.com  Tue Nov  7 20:24:33 2017
From: frank1985876 at gmail.com (frank)
Date: Wed, 8 Nov 2017 09:24:33 +0800
Subject: [vtkusers] how to create a vtkDataSet according to the type of
	the input
In-Reply-To: <CANjZAi-VmzE_iMUzJZvB1YsE-876PYHiA2XciW2Z9hk7jnE_4w@mail.gmail.com>
References: <E6398104-59D3-40E2-8633-10FE99A9A8A9@gmail.com>
 <CANjZAi-VmzE_iMUzJZvB1YsE-876PYHiA2XciW2Z9hk7jnE_4w@mail.gmail.com>
Message-ID: <38DFB423-F503-4970-AB94-974DE4452A9A@gmail.com>

Thank you, David

data = input->NewInstance();


> ? 2017?11?7??19:05?David E DeMarle <dave.demarle at kitware.com> ???
> 
> Try data->NewInstance()
> 
>> On Nov 7, 2017 3:03 AM, "frank" <frank1985876 at gmail.com> wrote:
>> Hi, all
>> 
>> If I want to create a vtkDataSet according to type of the input (vtkDataSet*), I can do that with the code below.
>> Is there any way to get rid of those if-else? Any way like vtkDataArray do? vtkDataArray* a = vtkDataArray::CreateDataArray(array->GetDataType());
>> 
>> //----------------
>> vtkDataSet *data;
>> if (input->IsA("vtkImageData"))
>>     data = vtkImageData::New();
>> else if (input->IsA("vtkStructuredGrid"))
>>     data = vtkStructuredGrid::New();
>> ?
>> //----------------
>> 
>> Thank you!
>> 
>> _______________________________________________
>> Powered by www.kitware.com
>> 
>> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>> 
>> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>> 
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>> 
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/vtkusers
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From ilindsay at insigniamedical.co.uk  Wed Nov  8 04:57:34 2017
From: ilindsay at insigniamedical.co.uk (ianl)
Date: Wed, 8 Nov 2017 02:57:34 -0700 (MST)
Subject: [vtkusers] Shadow support on volume rendering
In-Reply-To: <CANjZAi_stmOTvcx5hQ9L-ResBZUZ9n+ZNZZa3Lw+tws9mEZB_g@mail.gmail.com>
References: <CANjZAi-w78-MAaUK7mAEHSnY_7vrN3w3XKgeDPRmas2_2ZMEWA@mail.gmail.com>
 <CANjZAi-q+Vv+2J5=OV==B8uecXHYFhusag253j23cF5vf+B4Mg@mail.gmail.com>
 <7002df66-ddbd-071b-79bc-272a98a799ce@insigniamedical.co.uk>
 <CANjZAi8ijx1Nuwb3eTRX4wOWHtQGYkfETLF8FZ3vR6_G8NfXJg@mail.gmail.com>
 <1509119924385-0.post@n5.nabble.com>
 <CANjZAi9XV=fZ=2G_xoxBcT0ycq_8rTx5+j0z6PaQ+WuhZCUBnw@mail.gmail.com>
 <CANjZAi9HsmhfyaF26TTKMf4nh+ypj52zOQA5MtyUGMKwsCHRFg@mail.gmail.com>
 <1509465934854-0.post@n5.nabble.com> <1509469501231-0.post@n5.nabble.com>
 <CANjZAi_stmOTvcx5hQ9L-ResBZUZ9n+ZNZZa3Lw+tws9mEZB_g@mail.gmail.com>
Message-ID: <1510135054887-0.post@n5.nabble.com>

Hi David,

Basically any DICOM CT set will do, but a good example is the Visible Human
Female Ankle, available here:
https://mri.radiology.uiowa.edu/VHDicom/VHFCT1mm/VHF-Ankle.tar.gz

This renders fine (see image) with the GPU renderer. I get a totally black
image when I add in the OSPRay render pass. I have verified this by writing
a loop to check the value of all output pixels, all end up as zeros.

<http://vtk.1045678.n5.nabble.com/file/t147622/render.png> 

I have had a play around with the TestOSPRayVolumeRenderer.cxx test. I
removed the data surface filter so the test only renders the volumetric
image, this seems to render fine with OSPRay, so it seems that my set-up is
ok.

As another test, I added a marching cubes filter to extract an iso surface
to my pipeline, along with a vtkPolyDataMapper to render it. In this
configuration, I see a surface rendered by OSPRay, so it seems that the
issue is something specific to my pipeline and volumetric rendering. I'll
keep digging.



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From amine.aboufirass at gmail.com  Wed Nov  8 05:58:53 2017
From: amine.aboufirass at gmail.com (awa5114)
Date: Wed, 8 Nov 2017 03:58:53 -0700 (MST)
Subject: [vtkusers] get all unstructured grid data from vtk
Message-ID: <1510138733357-0.post@n5.nabble.com>

Hello,

I am a new vtk user in python. I have an unstructured grid vtk file
containing the following:

ASCII
DATASET UNSTRUCTURED_GRID
POINTS       96 float
CELLS       96     192
CELL_TYPES       96
POINT_DATA       96
VECTORS vector1 float
VECTORS vector2 float
etc

I would like to, using the vtk library available in python, obtain the
values of the vectors for ALL my points as a python or numpy list. I am
toying with the following example in the vtk library website

https://lorensen.github.io/VTKExamples/site/Python/IO/UnstructuredGridReader/

It's a nice example that shows some wicked functionality. But that's useless
to a new end user like me who needs to accomplish simple data extraction and
functionality. Could anyone please provide some additional insight on how
this can be accomplished? 

Thanks





--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From rppatil3210 at gmail.com  Wed Nov  8 06:00:25 2017
From: rppatil3210 at gmail.com (rohit)
Date: Wed, 8 Nov 2017 04:00:25 -0700 (MST)
Subject: [vtkusers] MPR crosshairs Call Back
Message-ID: <1510138825479-0.post@n5.nabble.com>

Hello all VTK users, I am new to vtk and nowadays working on an MPR
(MultiPlanar Reconstruction) of a CT/MRI image in JAVA I have successfully
developed the view which it is required to view the MPR and its crosshairs,
but from two days I am stuck in the crosshairs movement callback, I want to
one crosshair along with this other two view + crosshairs have to change.
Help me to solve this problem. I am attaching my code below for the
reference and also image too. I can also provide the whole MPR project in
java for reference.

Used  - VTK8.0.jar file, vtk dll files, java 8, IDE - Eclipse


 
<http://vtk.1045678.n5.nabble.com/file/t342239/MPR_CallBack_Not_Working.png> 


package test_vtk_blog;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.GraphicsEnvironment;
import java.awt.GridLayout;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import java.io.IOException;

import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JSplitPane;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
import javax.swing.border.TitledBorder;

import org.dcm4che2.data.DicomObject;
import org.dcm4che2.data.Tag;
import org.dcm4che2.io.DicomInputStream;

import vtk.vtkCamera;
import vtk.vtkCanvas;
import vtk.vtkCursor2D;
import vtk.vtkDICOMImageReader;
import vtk.vtkImageActor;
import vtk.vtkImageMapToColors;
import vtk.vtkImageReslice;
import vtk.vtkInteractorStyleImage;
import vtk.vtkLookupTable;
import vtk.vtkNativeLibrary;
import vtk.vtkPointPicker;
import vtk.vtkPoints;
import vtk.vtkPolyDataMapper;
import vtk.vtkResliceCursorLineRepresentation;
import vtk.vtkResliceCursorWidget;
import vtk.vtkResliceImageViewer;
import vtk.vtkWindowLevelLookupTable;

@SuppressWarnings("serial")
public class Mpr2DFrame extends JFrame {

	// label and panel
	String patientName, age, studyid;
	static String patientID;
	String modality;
	String gender;
	String date;
	String time;
	String studyDesc;
	String seriesDesc;
	JPanel mainPan;
	JSplitPane splitsPane;
	JPanel mprPan;

	private JPanel pnlAxialView;
	private JPanel pnlCoronalView;
	private JPanel pnlSagittalView;
	private JPanel pnlAnnotationView;
	private JTextArea taPageStartCor;
	private JTextArea taPageEnd;
	private JTextArea taPageStart;
	private JTextArea taPageEndCor;
	private JTextArea taPageStartSag;
	private JTextArea taPageEndSag;

	String tittle = "Multi-Plannar Reconstruction (MPR)";

	vtkPoints points = new vtkPoints();

	vtkCanvas vpanAxial = new vtkCanvas();
	vtkCanvas vpanCoronal = new vtkCanvas();
	vtkCanvas vpanSagittal = new vtkCanvas();
	
	vtkImageReslice resliceAxial;
	vtkImageReslice resliceCoronal;
	vtkImageReslice resliceSagittal;
	
	vtkInteractorStyleImage interactorStyle = new vtkInteractorStyleImage();
	
	//vtkInteractorStyleTrackball interactorStyle = new
vtkInteractorStyleTrackball();
	
	//vtkInteractorStyleJoystickCamera interactorStyle = new
vtkInteractorStyleJoystickCamera();
	
	vtkImageActor actorAxial;
	vtkImageActor actorCoronal;
	vtkImageActor actorSagittal;
	
	Point mouseXYAxial, mouseXYCoronal, mouseXYSagittal;
	private vtkDICOMImageReader reader = null;
	double[] dataExtent;
	private int WL = -20, WW = 110;

	
	private vtkLookupTable axialTable;
	private vtkImageMapToColors axialColor;
	private vtkLookupTable coronalTable;
	private vtkImageMapToColors coronnalColor;
	private vtkLookupTable saggitalTable;
	private vtkImageMapToColors saggitalColor;
 
	private vtkResliceCursorWidget resliceWidget_resliceImageViewerXY;
	private vtkResliceImageViewer resliceImageViewerXY;
	private vtkResliceImageViewer resliceImageViewerXZ;
	private vtkResliceImageViewer resliceImageViewerYZ;
    
    static String imagepath = "";
    private static String path_tag_read;
	private static String modality_name;
	private static String patient_name;
	private static String patient_age;
	private static String patient_gender;
	private static String study_date;
	private static String patient_id;
	
	static {

		if (!vtkNativeLibrary.LoadAllNativeLibraries()) {
			for (vtkNativeLibrary lib : vtkNativeLibrary.values()) {

				if (!lib.IsLoaded()) {
					System.out.println(lib.GetLibraryName() + " not loaded");
				}
			}
			System.out.println("Make sure the search path is correct: ");
			System.out.println(System.getProperty("java.library.path"));
		}

	}

	public static void main(String[] args) {
		
		System.out.println("Mpr2DFrame Called");
		
		imagepath = "C:\\3D VR\\kidney\\series001\\compression\\";
		//tag_reader(imagepath);
		
		System.out.println( "imagepath = "+ imagepath);
		
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				
				Mpr2DFrame frame = new Mpr2DFrame();
				frame.readDicomDir(imagepath);				
				frame.setLocationRelativeTo(null);
				frame.setVisible(true);

			}
		});

	}

	public Mpr2DFrame() {

		System.gc();
		setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
		setFrameSize();
		initComponents();
		addComponents(true);
		setStyles();
		addListners();		

		System.gc();

		this.addWindowListener(new WindowAdapter() {
			@Override
			public void windowClosing(WindowEvent e) {
				super.windowClosing(e);
				System.gc();
			}
		});

	}
	
	static void tag_reader(String path)
	{
		
		//---------------------------
		
		File folder = new File(path);
		File[] listOfFiles = folder.listFiles();
		path_tag_read = listOfFiles[2].getAbsolutePath();
		System.out.println(path_tag_read);
		
		//---------------------------
		
		File f = new File(path_tag_read);

		DicomInputStream dcmInputStream = null;
		try {
			dcmInputStream = new DicomInputStream(f);
		} catch (IOException e1) {
			e1.printStackTrace();
		}

		DicomObject dcmObject = null;

		try {
			dcmObject = dcmInputStream.readDicomObject();
		} catch (IOException e1) {
			e1.printStackTrace();
		}

		// Read DICOM TAG IN Variables

		modality_name = dcmObject.getString(Tag.Modality);
		patient_id = dcmObject.getString(Tag.PatientID);		
		patient_name = dcmObject.getString(Tag.PatientName);		
		patient_age = dcmObject.getString(Tag.PatientAge);
		patient_gender = dcmObject.getString(Tag.PatientSex);
		study_date = dcmObject.getString(Tag.StudyDate);
		study_date = convertDateTag(study_date);

	}

	public void setFrameSize() {
		Dimension scrnSize = Toolkit.getDefaultToolkit().getScreenSize();
		Rectangle winSize =
GraphicsEnvironment.getLocalGraphicsEnvironment().getMaximumWindowBounds();
		int taskBarHeight = scrnSize.height - winSize.height;
		this.setSize(Toolkit.getDefaultToolkit().getScreenSize().width - 200,
				(Toolkit.getDefaultToolkit().getScreenSize().height - taskBarHeight));

		// set main Frame in the center
		Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
		this.setLocation(dim.width / 2 - this.getSize().width / 2, (dim.height / 2
- this.getSize().height / 2) + 50);
	}

	public void initComponents() {

		getContentPane().setLayout(new BorderLayout());

		axialTable = new vtkLookupTable();
		saggitalTable = new vtkLookupTable();
		coronalTable = new vtkLookupTable();
		coronnalColor = new vtkImageMapToColors();
		axialColor = new vtkImageMapToColors();
		saggitalColor = new vtkImageMapToColors();

		pnlAxialView = new JPanel();
		pnlAxialView.setVisible(true);

		// second panel
		pnlCoronalView = new JPanel();
		pnlCoronalView.setVisible(true);

		// third panel
		pnlSagittalView = new JPanel();
		pnlSagittalView.setVisible(true);

		// forth Panel
		pnlAnnotationView = new JPanel();
		pnlAnnotationView.setVisible(true);

		mainPan = new JPanel();
		mainPan.setLayout(new GridLayout(1, 2, 1, 1));
		mainPan.revalidate();		
		mainPan.setVisible(true);
		// this.sldWL.setOpaque(false);

		// main panel
		mprPan = new JPanel();
		mprPan.setLayout(new GridLayout(2, 2, 5, 5));
		splitsPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, true);
		splitsPane.setDividerSize(1);

		String Space = "                           ";
		taPageStart = new JTextArea("Patient ID:" + patient_id +
"\t\t\t\t\t"+Space+ "Gender :" + patient_gender, 3, 10);
		taPageStart.append("\nPatient Name :" + patient_name + "\t\t\t\t\tAge :" +
patient_age);  

		taPageStart.setEditable(false);
		taPageStart.setBackground(Color.black);
		taPageStart.setOpaque(false);
		taPageStart.setForeground(Color.white);

		taPageEnd = new JTextArea("Date :" + study_date, 3, 10);
		//taPageEnd.append("\nModality :" + modality_name + "\t\t\t\t\t\t" +
"Series Desc :" + seriesDesc);
		taPageEnd.append("\nModality :" + modality_name);

		taPageEnd.setEditable(false);
		taPageEnd.setOpaque(false);
		taPageEnd.setBackground(Color.black);
		taPageEnd.setForeground(Color.white);

		pnlAxialView.setLayout(new BorderLayout());
	
		taPageStartCor = new JTextArea("Patient ID:" + patient_id +
"\t\t\t\t\t"+Space+ "Gender :" + patient_gender, 3, 10);
		taPageStartCor.append("\nPatient Name :" + patient_name + "\t\t\t\t\tAge
:" + patient_age);

		taPageStartCor.setEditable(false);
		taPageStartCor.setBackground(Color.black);
		taPageStartCor.setOpaque(false);
		taPageStartCor.setForeground(Color.white);

		taPageEndCor = new JTextArea("Date :" + study_date ,3, 10);
		taPageEndCor.append("\nModality :" + modality_name);

		taPageEndCor.setEditable(false);
		taPageEndCor.setOpaque(false);
		taPageEndCor.setBackground(Color.black);
		taPageEndCor.setForeground(Color.white);
		pnlCoronalView.setLayout(new BorderLayout());

		taPageStartSag = new JTextArea("Patient ID:" + patient_id +
"\t\t\t\t\t"+Space+ "Gender :" + patient_gender, 3, 10);
		taPageStartSag.append("\nPatient Name :" + patient_name + "\t\t\t\t\tAge
:" + patient_age);

		taPageStartSag.setEditable(false);
		taPageStartSag.setBackground(Color.black);
		taPageStartSag.setOpaque(false);
		taPageStartSag.setForeground(Color.white);

		taPageEndSag = new JTextArea("Date :" + study_date, 3, 10);
		taPageEndSag.append("\nModality :" + modality_name);

		taPageEndSag.setEditable(false);
		taPageEndSag.setOpaque(false);
		taPageEndSag.setBackground(Color.black);
		taPageEndSag.setForeground(Color.white);
		pnlSagittalView.setLayout(new BorderLayout());
	
	}

	public void setStyles() {
		pnlAxialView.setBackground(Color.BLACK);
	
pnlAxialView.setBorder(BorderFactory.createTitledBorder(BorderFactory.createLineBorder(Color.WHITE,
2),
				"Axial View", TitledBorder.RIGHT, TitledBorder.TOP, new Font("calibri",
Font.BOLD, 14), Color.white));

		pnlCoronalView.setBackground(Color.BLACK);
	
pnlCoronalView.setBorder(BorderFactory.createTitledBorder(BorderFactory.createLineBorder(Color.WHITE,
2),
				"Coronal View", TitledBorder.RIGHT, TitledBorder.TOP, new
Font("calibri", Font.BOLD, 14), Color.white));

		pnlSagittalView.setBackground(Color.BLACK);
		pnlSagittalView.setBorder(
			
BorderFactory.createTitledBorder(BorderFactory.createLineBorder(Color.WHITE,
2), "Sagittal View",
						TitledBorder.RIGHT, TitledBorder.TOP, new Font("calibri", Font.BOLD,
14), Color.white));

		pnlAnnotationView.setBackground(Color.black);

		mprPan.setBackground(Color.black);
		this.setTitle(tittle);
		System.gc();
	}

	public void addComponents(boolean flag) {

		try {

			if (flag == true) {

				pnlSagittalView.add(taPageStartSag, BorderLayout.PAGE_START);
				pnlSagittalView.add(taPageEndSag, BorderLayout.PAGE_END);
				pnlCoronalView.add(taPageStartCor, BorderLayout.PAGE_START);
				pnlCoronalView.add(taPageEndCor, BorderLayout.PAGE_END);
				pnlAxialView.add(taPageStart, BorderLayout.PAGE_START);
				pnlAxialView.add(taPageEnd, BorderLayout.PAGE_END);

			} else {
				pnlSagittalView.remove(taPageStartSag);
				pnlSagittalView.remove(taPageEndSag);
				pnlCoronalView.remove(taPageStartCor);
				pnlCoronalView.remove(taPageEndCor);
				pnlAxialView.remove(taPageStart);
				pnlAxialView.remove(taPageEnd);
			}
			
			mprPan.add(pnlCoronalView);
			mprPan.add(pnlSagittalView);
			splitsPane.add(pnlAxialView);

			mainPan.add(splitsPane);
			mainPan.add(mprPan);

			this.setLocationRelativeTo(null);
			this.setExtendedState(java.awt.Frame.MAXIMIZED_BOTH);

			getContentPane().add(mainPan, BorderLayout.CENTER);
			setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
			this.revalidate();
			this.setVisible(true);
			this.setAlwaysOnTop(true);
			System.gc();

			vpanAxial.GetRenderer().SetBackground(0.0, 0.0, 0.0);
			//vpanAxial.setSize((pnlAxialView.getWidth() - 30),
(pnlAxialView.getHeight() - 40));
			vpanAxial.setSize((pnlAxialView.getWidth()), (pnlAxialView.getHeight()));
			pnlAxialView.add(vpanAxial);
			
			System.out.println("pnlAxialView.add(vpanAxial); added ");

			// change vtk background color
			vpanCoronal.GetRenderer().SetBackground(0.0, 0.0, 0.0);
			// set size of image from here in vtk panel..manually
			//vpanCoronal.setSize((pnlCoronalView.getWidth() + 60),
(pnlCoronalView.getHeight() + 50));
			vpanCoronal.setSize((pnlCoronalView.getWidth()),
(pnlCoronalView.getHeight()));
			pnlCoronalView.add(vpanCoronal);

			vpanSagittal.GetRenderer().SetBackground(0.0, 0.0, 0.0);
			//vpanSagittal.setSize((pnlSagittalView.getWidth() + 60),
(pnlSagittalView.getHeight() + 50));
			vpanSagittal.setSize((pnlSagittalView.getWidth()),
(pnlSagittalView.getHeight()));
			pnlSagittalView.add(vpanSagittal);

			System.gc();

		} catch (Exception ex) {
			ex.printStackTrace();
		}

	}
	
	public void readDicomDir(String path) {
		


		String path1 = "C:\\3D VR\\kidney\\series001\\compression\\";

		reader = new vtkDICOMImageReader();
		reader.SetDirectoryName(path1);
		reader.SetDataScalarTypeToUnsignedShort();
		reader.UpdateWholeExtent();
		reader.Update();
		
		
		
		vtkWindowLevelLookupTable win_table = new vtkWindowLevelLookupTable();
		win_table.SetLevel(110);
		win_table.SetWindow(1300);		
		win_table.SetRampToLinear();
		win_table.Build();		
				

// ---------------------------- XY vtkResliceImageViewer  
		
        resliceImageViewerXY = new vtkResliceImageViewer();
        resliceImageViewerXY.SetInputData(reader.GetOutput());        
        //resliceImageViewerXY.SetSize(512, 512);        
       
resliceImageViewerXY.SetupInteractor(vpanAxial.GetRenderWindow().GetInteractor());        
        resliceImageViewerXY.SliceScrollOnMouseWheelOff();
		resliceImageViewerXY.SetRenderWindow(vpanAxial.GetRenderWindow());
		resliceImageViewerXY.SetRenderer(vpanAxial.GetRenderer());
		
// -------------------------- Reslice cursor XY
------------------------------		    
	
		resliceWidget_resliceImageViewerXY =
resliceImageViewerXY.GetResliceCursorWidget();
	    vtkResliceCursorLineRepresentation rep =
(vtkResliceCursorLineRepresentation)
resliceWidget_resliceImageViewerXY.GetRepresentation();
	    rep.NeedToRenderOn();
	    resliceImageViewerXY.SetResliceCursor(rep.GetResliceCursor());     
       
rep.GetResliceCursorActor().GetCursorAlgorithm().SetReslicePlaneNormal(2); 
	    resliceWidget_resliceImageViewerXY.ManagesCursorOn();
        resliceWidget_resliceImageViewerXY.SetEnabled(1);
     
        resliceImageViewerXY.AddObserver("LeftButtonPressEvent", this,
"myCallback");
        vpanAxial.GetRenderer().ResetCamera();	
        
		interactorStyle.AddObserver("LeftButtonPressEvent",this,"myCallback"); //
Callback not working

		
// ---------------------------- XZ vtkResliceImageViewer   
        
        resliceImageViewerXZ = new vtkResliceImageViewer();
        resliceImageViewerXZ.SetInputData(reader.GetOutput());
        resliceImageViewerXZ.SetSliceOrientationToXZ();        
       
resliceImageViewerXZ.SetupInteractor(vpanCoronal.GetRenderWindow().GetInteractor());
        resliceImageViewerXZ.SliceScrollOnMouseWheelOff();
        resliceImageViewerXZ.SetRenderWindow(vpanCoronal.GetRenderWindow());
        resliceImageViewerXZ.SetRenderer(vpanCoronal.GetRenderer());        
        resliceImageViewerXZ.SetColorWindow(2700.0);
        
        
// -------------------------- Reslice cursor ------------------------------
        
		vtkResliceCursorWidget resliceWidget_resliceImageViewerXZ =
resliceImageViewerXZ.GetResliceCursorWidget();
	    vtkResliceCursorLineRepresentation rep1 =
(vtkResliceCursorLineRepresentation)resliceWidget_resliceImageViewerXZ.GetRepresentation();
	            
	    resliceImageViewerXZ.SetResliceCursor(rep1.GetResliceCursor()); 
	   
rep1.GetResliceCursorActor().GetCursorAlgorithm().SetReslicePlaneNormal(1); 
	    resliceWidget_resliceImageViewerXZ.ManagesCursorOn();
        resliceWidget_resliceImageViewerXZ.SetEnabled(1);
        vpanCoronal.GetRenderer().ResetCamera();
        
        
		interactorStyle.AddObserver("LeftButtonPressEvent",this,"myCallback"); //
Callback not working

        
        
// ---------------------------- YZ vtkResliceImageViewer
        
        resliceImageViewerYZ = new vtkResliceImageViewer();
        resliceImageViewerYZ.SetInputData(reader.GetOutput());
        resliceImageViewerYZ.SetSliceOrientationToYZ();
       
resliceImageViewerYZ.SetupInteractor(vpanSagittal.GetRenderWindow().GetInteractor());
        resliceImageViewerYZ.SetResliceMode(3);
        resliceImageViewerYZ.SetSize(512, 512);
        resliceImageViewerYZ.SliceScrollOnMouseWheelOff();
        
       
resliceImageViewerYZ.SetRenderWindow(vpanSagittal.GetRenderWindow());
        resliceImageViewerYZ.SetRenderer(vpanSagittal.GetRenderer());
        
               
// -------------------------- Reslice cursor YZ
------------------------------
        
		vtkResliceCursorWidget resliceWidget_resliceImageViewerYZ =
resliceImageViewerYZ.GetResliceCursorWidget();
	    vtkResliceCursorLineRepresentation rep11 =
(vtkResliceCursorLineRepresentation)resliceWidget_resliceImageViewerYZ.GetRepresentation();
	    
	    resliceImageViewerYZ.SetResliceCursor(rep11.GetResliceCursor()); 	    
       
rep11.GetResliceCursorActor().GetCursorAlgorithm().SetReslicePlaneNormal(0); 
        resliceWidget_resliceImageViewerYZ.ManagesCursorOn();
        resliceWidget_resliceImageViewerYZ.SetEnabled(1);        
        
		vpanSagittal.GetRenderer().ResetCamera();
		
		interactorStyle.AddObserver("LeftButtonPressEvent",this,"myCallback"); //
Callback not working		

		
}

	void lookUpTableAxial() {


		axialTable.SetRange(WL, WW);
		axialTable.SetValueRange(0.0, 1.0);
		axialTable.SetSaturationRange(0.0, 0.0);
		axialTable.SetRampToLinear();
		axialTable.Build();

		axialColor.SetLookupTable(axialTable);
		axialColor.SetInputConnection(this.resliceAxial.GetOutputPort());

		this.actorAxial = new vtkImageActor();
		this.actorAxial.SetInputData(axialColor.GetOutput());


	}

	void lookUpTableCoronal() {

		coronalTable.SetRange(WL, WW);
		coronalTable.SetValueRange(0.0, 1.0);
		coronalTable.SetSaturationRange(0.0, 0.0);
		coronalTable.SetRampToLinear();
		coronalTable.Build();

		coronnalColor.SetLookupTable(coronalTable);
		coronnalColor.SetInputConnection(this.resliceCoronal.GetOutputPort());

		this.actorCoronal = new vtkImageActor();
		this.actorCoronal.SetInputData(coronnalColor.GetOutput());


	}

	void lookUpTableSaggital() {
	
		saggitalTable.SetRange(WL, WW);
		saggitalTable.SetValueRange(0.0, 1.0);
		saggitalTable.SetSaturationRange(0.0, 0.0);
		saggitalTable.SetRampToLinear();
		saggitalTable.Build();
		saggitalColor.SetLookupTable(saggitalTable);
		saggitalColor.SetInputConnection(this.resliceSagittal.GetOutputPort());

		this.actorSagittal = new vtkImageActor();
		this.actorSagittal.SetInputData(saggitalColor.GetOutput());
	

	}

	@Override
	protected void finalize() throws Throwable {

		vpanAxial = null;
		vpanCoronal = null;
		vpanSagittal = null;
		reader = null;
		actorSagittal = null;
		actorCoronal = null;
		actorAxial = null;

		interactorStyle = null;

		resliceAxial = null;
		resliceCoronal = null;
		resliceSagittal = null;
		pnlAxialView = null;
		pnlCoronalView = null;
		pnlSagittalView = null;
		splitsPane = null;
	}


	
	public static String convertDateTag(String date)
	{
		String year = date.substring(0, 4);
		String month = date.substring(4, 6);
		String day = date.substring(6, 8);
		
		switch(month)
		{
		case "01":
			month = "Jan";
			break;
		case "02":
			month = "Feb";
			break;
		case "03":
			month = "Mar";
			break;
		case "04":
			month = "Apr";
			break;
		case "05":
			month = "May";
			break;
		case "06":
			month = "Jun";
			break;
		case "07":
			month = "Jul";
			break;
		case "08":
			month = "Aug";
			break;
		case "09":
			month = "Sep";
			break;
		case "10":
			month = "Oct";
			break;
		case "11":
			month = "Nov";
			break;
		case "12":
			month = "Dec";
			break;
		}
		return month + " " + day + ", " + year;
	}
	
	public void myCallback() {	
		
		// Not Calling from Observer and Don't know what to right to synchronize
three views
		System.out.println("I am Called");
		
		
		
	}
	
	public void addListners(){
		
		vpanSagittal.addMouseListener(new MouseListener() {
			
			@Override
			public void mouseReleased(MouseEvent e) {
				// TODO Auto-generated method stub
				
			}
			
			@Override
			public void mousePressed(MouseEvent e) {
				// TODO Auto-generated method stub
				
			}
			
			@Override
			public void mouseExited(MouseEvent e) {
				// TODO Auto-generated method stub
				
			}
			
			@Override
			public void mouseEntered(MouseEvent e) {
				// TODO Auto-generated method stub
				
			}
			
			@Override
			public void mouseClicked(MouseEvent me) {
				// TODO Auto-generated method stub

				vtkPointPicker pick_xY = new vtkPointPicker();
				pick_xY.Pick(me.getX(), me.getY(), 0,
resliceImageViewerXY.GetRenderer());
				System.out.println(me.getX() + "     " + me.getX());

				boolean left = SwingUtilities.isLeftMouseButton(me);

				if (left == true) {

					mouseXYAxial = me.getPoint();

					vtkPointPicker pickerAxial = new vtkPointPicker();
					int pickTest = pickerAxial.Pick(mouseXYAxial.x, mouseXYAxial.y, 0.0,
vpanAxial.GetRenderer());

					if (pickTest != 0) {

						// -------------------- cross hairs
						// ----------------------------------

						double[] picked_point = pick_xY.GetMapperPosition();
						double[][] f_point = { picked_point };

						System.out.println(
								"f_point[] = " + f_point[0][0] + ",,," + f_point[0][1] + ",,," +
f_point[0][2]);

						vtkCursor2D cursor = new vtkCursor2D();
						// cursor.SetModelBounds(-512, 512, -512, 512, 0, 0);
					
cursor.SetModelBounds(vpanSagittal.GetRenderer().ComputeVisiblePropBounds());
						System.out.println("vpanAxial.getMousePosition() =" +
vpanSagittal.getMousePosition());
						cursor.SetFocalPoint(f_point[0][0], f_point[0][1], f_point[0][2]);
						cursor.SetWrap(10);

						vtkPolyDataMapper cursorMapper = new vtkPolyDataMapper();
						cursorMapper.SetInputConnection(cursor.GetOutputPort());

						vpanSagittal.Render();

						// --------------------------------- cross hairs
						// ---------------------

					}
					// removeListeners();

				}

			}
		});
		
	}
	
	
	
}





--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From marcin.krotkiewski at gmail.com  Wed Nov  8 06:09:13 2017
From: marcin.krotkiewski at gmail.com (marcin.krotkiewski)
Date: Wed, 8 Nov 2017 12:09:13 +0100
Subject: [vtkusers] Rendering artifact at opacity<1
Message-ID: <f7fe631c-136e-4f52-3d62-94a019527b50@gmail.com>

Dear developers,

I am observing strange rendering artifacts on my triangulated surface 
when I use transparency. The artifacts are observed at certain angles 
only. I've attached 3 pictures:

 ?- opacity_1.png shows the model as it looks without transparency
 ?- opacity_09.png shows the model at an angle chosen such that the 
artifact on the surface is visible.
 ?- opacity_0.9_behind.png shows the same model with transparency 
rotated around to a view that does not show the artifact

I am using vtk 8.0 with the OpenGL 2 rendering backend.

Is this a bug, or am I doing sth wrong?

Thanks!

Marcin

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From ken.martin at kitware.com  Wed Nov  8 08:29:43 2017
From: ken.martin at kitware.com (Ken Martin)
Date: Wed, 8 Nov 2017 08:29:43 -0500
Subject: [vtkusers] Rendering artifact at opacity<1
In-Reply-To: <f7fe631c-136e-4f52-3d62-94a019527b50@gmail.com>
References: <f7fe631c-136e-4f52-3d62-94a019527b50@gmail.com>
Message-ID: <CANXz0Sar40xb7jwHZ3OtfT9TBZLNX=6RAQD0-NZ3oG4dSetQxw@mail.gmail.com>

Try using depth peeling to resolve the transparency.


  //@{
  /**
   * Turn on/off rendering of translucent material with depth peeling
   * technique. The render window must have alpha bits (ie call
   * SetAlphaBitPlanes(1)) and no multisample buffer (ie call
   * SetMultiSamples(0) ) to support depth peeling.
   * If UseDepthPeeling is on and the GPU supports it, depth peeling is used
   * for rendering translucent materials.
   * If UseDepthPeeling is off, alpha blending is used.
   * Initial value is off.
   */
  vtkSetMacro(UseDepthPeeling,int);
  vtkGetMacro(UseDepthPeeling,int);
  vtkBooleanMacro(UseDepthPeeling,int);
  //@}




On Wed, Nov 8, 2017 at 6:09 AM, marcin.krotkiewski <
marcin.krotkiewski at gmail.com> wrote:

> Dear developers,
>
> I am observing strange rendering artifacts on my triangulated surface when
> I use transparency. The artifacts are observed at certain angles only. I've
> attached 3 pictures:
>
>  - opacity_1.png shows the model as it looks without transparency
>  - opacity_09.png shows the model at an angle chosen such that the
> artifact on the surface is visible.
>  - opacity_0.9_behind.png shows the same model with transparency rotated
> around to a view that does not show the artifact
>
> I am using vtk 8.0 with the OpenGL 2 rendering backend.
>
> Is this a bug, or am I doing sth wrong?
>
> Thanks!
>
> Marcin
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>


-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
not the intended recipient, any disclosure, copying, distribution or any
action taken in reliance on it is prohibited and may be unlawful. If you
received this communication in error please notify us immediately and
destroy the original message.  Thank you.
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From marcin.krotkiewski at gmail.com  Wed Nov  8 09:08:46 2017
From: marcin.krotkiewski at gmail.com (marcin.krotkiewski)
Date: Wed, 8 Nov 2017 15:08:46 +0100
Subject: [vtkusers] Rendering artifact at opacity<1
In-Reply-To: <CANXz0Sar40xb7jwHZ3OtfT9TBZLNX=6RAQD0-NZ3oG4dSetQxw@mail.gmail.com>
References: <f7fe631c-136e-4f52-3d62-94a019527b50@gmail.com>
 <CANXz0Sar40xb7jwHZ3OtfT9TBZLNX=6RAQD0-NZ3oG4dSetQxw@mail.gmail.com>
Message-ID: <5f78a51b-e787-2157-ea2a-0bc7f1699cc4@gmail.com>

Thanks a lot, Ken! This works much better. However ;) now I got very 
fat-looking fonts and lines (attached).

Anything suggestions what I can do with that?

Thanks!

Marcin



On 11/08/2017 02:29 PM, Ken Martin wrote:
> Try using depth peeling to resolve the transparency.
>
>
> ? //@{
> ? /**
> ? ?* Turn on/off rendering of translucent material with depth peeling
> ? ?* technique. The render window must have alpha bits (ie call
> ? ?* SetAlphaBitPlanes(1)) and no multisample buffer (ie call
> ? ?* SetMultiSamples(0) ) to support depth peeling.
> ? ?* If UseDepthPeeling is on and the GPU supports it, depth peeling 
> is used
> ? ?* for rendering translucent materials.
> ? ?* If UseDepthPeeling is off, alpha blending is used.
> ? ?* Initial value is off.
> ? ?*/
> ? vtkSetMacro(UseDepthPeeling,int);
> ? vtkGetMacro(UseDepthPeeling,int);
> ? vtkBooleanMacro(UseDepthPeeling,int);
> ? //@}
>
>
>
>
> On Wed, Nov 8, 2017 at 6:09 AM, marcin.krotkiewski 
> <marcin.krotkiewski at gmail.com <mailto:marcin.krotkiewski at gmail.com>> 
> wrote:
>
>     Dear developers,
>
>     I am observing strange rendering artifacts on my triangulated
>     surface when I use transparency. The artifacts are observed at
>     certain angles only. I've attached 3 pictures:
>
>     ?- opacity_1.png shows the model as it looks without transparency
>     ?- opacity_09.png shows the model at an angle chosen such that the
>     artifact on the surface is visible.
>     ?- opacity_0.9_behind.png shows the same model with transparency
>     rotated around to a view that does not show the artifact
>
>     I am using vtk 8.0 with the OpenGL 2 rendering backend.
>
>     Is this a bug, or am I doing sth wrong?
>
>     Thanks!
>
>     Marcin
>
>
>     _______________________________________________
>     Powered by www.kitware.com <http://www.kitware.com>
>
>     Visit other Kitware open-source projects at
>     http://www.kitware.com/opensource/opensource.html
>     <http://www.kitware.com/opensource/opensource.html>
>
>     Please keep messages on-topic and check the VTK FAQ at:
>     http://www.vtk.org/Wiki/VTK_FAQ <http://www.vtk.org/Wiki/VTK_FAQ>
>
>     Search the list archives at:
>     http://markmail.org/search/?q=vtkusers
>     <http://markmail.org/search/?q=vtkusers>
>
>     Follow this link to subscribe/unsubscribe:
>     http://public.kitware.com/mailman/listinfo/vtkusers
>     <http://public.kitware.com/mailman/listinfo/vtkusers>
>
>
>
>
> -- 
> Ken Martin PhD
> Distinguished Engineer
> Kitware Inc.
> 28 Corporate Drive
> Clifton Park NY 12065
>
> This communication, including all attachments, contains confidential 
> and legally privileged information, and it is intended only for the 
> use of the addressee.? Access to this email by anyone else is 
> unauthorized. If you are not the intended recipient, any disclosure, 
> copying, distribution or any action taken in reliance on it is 
> prohibited and may be unlawful. If you received this communication in 
> error please notify us immediately and destroy the original message. 
> Thank you.

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From Wiggerl at Linhuber.info  Wed Nov  8 11:01:13 2017
From: Wiggerl at Linhuber.info (Willy)
Date: Wed, 8 Nov 2017 09:01:13 -0700 (MST)
Subject: [vtkusers] Black cross section between volume and near clipping
	plane?
Message-ID: <1510156873693-0.post@n5.nabble.com>

Hi,

I am using vtk 7.1 to visualize a volume. I have two different problems, one
for parallel projection and one for central and parallel projection. A
solution for one of the problems would be enough. Maybe somebody can help.

1. Problem:
There is a black hole where the near clipping plane (set by SetClippingRange
of vtkCamera) intersects with the volume. Only appears for a few angles, not
always.

2. Problem:
There is no reaction if i am calling SetClippingRange. i can always see the
near clipping plane even if i set it to 0.1. But only in parallel
projection.

Can somebody help me?

thanks
Ludwig 



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From dave.demarle at kitware.com  Wed Nov  8 13:34:35 2017
From: dave.demarle at kitware.com (David E DeMarle)
Date: Wed, 8 Nov 2017 13:34:35 -0500
Subject: [vtkusers] announce: vtk 8.1.0.rc1 is ready to try
Message-ID: <CANjZAi-0iR8xLrj+Boka8_TFg_fxW==xC4aq3HWKm7dptd-2cA@mail.gmail.com>

Hi folks,

VTK 8.1.0.rc1 is up on the downloads site and tagged in git. Please give it
a try and report any problems that you find to us via the gitlab issue
tracker with an "8.1" milestone tag. Developers, use the same tag to let us
know of any fixes that you want integrated to the release branch in time
for 8.1.0 final in a few weeks time.

We are still gathering feedback from all 70 committers to make up the
official release notes but in the meantime here is a preview of what seem
to be the most notable changes.

/**
------------------------------------------------------------------------------

In this release we?ve done more than the usual amount of deprecation and
dead code removal. Most importantly in 8.1 we?ve deprecated both the legacy
?OpenGL1? backend and our interface to Qt4. We also removed the previously
deprecated vtkInfovisParallel, vtkFiltersMatlab and
vtkFiltersStatisticsGnuR modules as well as deprecated  vtkInstantiator.
The replacement for vtkInstantiator is to use vtkObjectFactory where
applicable or an explicit list of classes. We expect that most of the newly
deprecated code paths will be removed in master in preparation for the VTK
9.0 release next spring.

The next big ticket item is progress on VTK-m - VTK?s burgeoning mechanism
for multithreaded and GPU enabled fine grain parallel processing filters.
The VTK-m project is now bundled with VTK (technically we use a git
submodule for it) and we?ve made numerous performance improvements and
added several new algorithms (vtkmExtractVOI, vtkmPolyDataNormals, and
vtkmTriangleMeshPointNormals) to it. We?ve also started the process of
transitioning the vtkSMP threaded filters (which are now deprecated) to
VTK-m based implementations.

In support of the VTK-m we?ve updated the minimum C++ compiler requirements
to be Microsoft Visual Studio 2013 or newer,  GCC 4.8.3 or newer, Clang 3.3
or newer, and Apple Clang 5.0 (from Xcode 5.0) or newer.

VTK?s python interface has some nice new capabilities. First, debug builds
of VTK can now better make use of the PYTHON_DEBUG_LIBRARY that cmake
detects. Second, in 8.1 the numpy_support.numpy_to_vtk facility will
automatically convert non-contiguous arrays to contiguous array and manage
the numpy reference in memory using a private attribute called as
_numpy_reference so that the programmer does not have to. Third, vtk?s
python wrappers have some new capabilities that make wrapped VTK resources
safer and generally more pythonc. The VTK_EXPECTS(condition) method hint
that will assert a precondition in Python before a C++ method is called,
causing Python exceptions to be raised for method calls that might
otherwise cause undefined behavior.  Two additional hints have been added
for wrapping pointers: VTK_SIZEHINT(expression) tells the wrappers to treat
a pointer as an array with a size given by 'expression', and VTK_ZEROCOPY
tells the wrappers to use Python's buffer interface.  This latter hint
conveniently allows Python buffers to be used to construct zerocopy VTK
data arrays.

On the web front vtkWeb converted its client-server communication from
using an outdated version of Autobahn WAMP to wslink - a new RPC and
publish-subscribe library using websockets, in order to support upgrades to
the ParaViewWeb classes and the Visualizer web application. For mobile
devices we've begun work on a new mobile VTKViewer app which will replace
the older KiwiViewer and use the mainline VTK library.

The VTKExamples project has gained more than 111 C++ examples since VTK
8.0. Of the C++ examples added, 73 examples from the VTK Book have been
added. We anticipate moving the rest of the VTK book and in source examples
to the VTKExamples project over the next few releases.

There is also a new SegY file format reader. This originated in Jia
Chen?s Google
Summer of Code 2015 project. The XML based ?.vtm? multiblock reader has a
new load balancing scheme that distribute the load more evenly in some
situations. XDMF3 gained an parallel write functionality and support for
some of the FEnICs project?s higher order cell types. The later work came
out of Michal Habera?s Google Summer this past summer.

We?ve added support for arbitrary-order Lagrange-interpolated cells for the
following shapes: curve, tri, quad, tet, hex, wedge. See the new
vtkLagrangeXXX classes in VTK/Common/DataModel and read all about it in the
next Kitware Source to learn more. There is also additional support and bug
fixes for polyhedral cells, especially in combination with mapped
(zero-copy) grids for in-situ processing ala Catalyst.

The hypertree grid (vtkHyperTreeGrid) and its ancillary objects underwent a
complete overhaul in order to reduce memory footprint and speed up
execution time. The refactoring brings: a more compact hypertree
representation, a hierarchy of traversal objects (cursors and supercursors)
that transport the minimum amount of information required for any given
algorithm, and suite of updated and new hypertree grid filters that take
advantage of the above.

The vtkArrayCalculator changed to be able to process data arrays from any
attribute type (point, cell, field, etc) and operate on vtkGraphs and
handle more than 256 arrays. The API for specifying which data association
algorithms use changed as a part of this.

We?ve made improvements to Dual Depth Peeling and FXAA anti aliased
rendering and enabled them with several previously excluded OpenGL
implementations. We?ve also fixed a variety of volume rendering bugs and
added a means to supply custom GLSL shader codes for volume rendering. In
related news the OSPRay rendering path can now directly volume render
unstructured grid and vtkOverlappingAMR data sets. Continuing in the area
of ray traced rendering VTK has a brand new interface to ray cast surface
rendering in the vtkRenderingOptiX module which utilizes the GPU for
tracing rays. Meanwhile VTK?s OSPRay based rendering option is also now
capable of full path tracing of surface geometry. This is a big jump over
the earlier ray casting like capability and includes support for soft
shadowing area lights and arbitrary surface materials with generally bring
about global illumination and photorealistic rendering capability.

------------------------------------------------------------------------------*/

enjoy!

David E DeMarle
Kitware, Inc.
Principal Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909
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From aashish.chaudhary at kitware.com  Wed Nov  8 13:45:58 2017
From: aashish.chaudhary at kitware.com (Aashish Chaudhary)
Date: Wed, 08 Nov 2017 18:45:58 +0000
Subject: [vtkusers] Black cross section between volume and near clipping
	plane?
In-Reply-To: <1510156873693-0.post@n5.nabble.com>
References: <1510156873693-0.post@n5.nabble.com>
Message-ID: <CAEw35Z88i+yFMKQFo-TvXMCEfeBCtoubgRun2UHZzvyTGw+aFA@mail.gmail.com>

We may have fixed this problem in latest VTK. Can you try VTK from master
or just announced 8.1 pre-release?

thanks,


On Wed, Nov 8, 2017 at 11:01 AM Willy <Wiggerl at linhuber.info> wrote:

> Hi,
>
> I am using vtk 7.1 to visualize a volume. I have two different problems,
> one
> for parallel projection and one for central and parallel projection. A
> solution for one of the problems would be enough. Maybe somebody can help.
>
> 1. Problem:
> There is a black hole where the near clipping plane (set by
> SetClippingRange
> of vtkCamera) intersects with the volume. Only appears for a few angles,
> not
> always.
>
> 2. Problem:
> There is no reaction if i am calling SetClippingRange. i can always see the
> near clipping plane even if i set it to 0.1. But only in parallel
> projection.
>
> Can somebody help me?
>
> thanks
> Ludwig
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
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From sur.chiranjib at gmail.com  Wed Nov  8 14:03:57 2017
From: sur.chiranjib at gmail.com (Chiranjib Sur)
Date: Thu, 9 Nov 2017 00:33:57 +0530
Subject: [vtkusers]
	=?utf-8?q?=E2=80=8B_Rotate_the_vector_along_the_X=2C_Y?=
	=?utf-8?b?LCBaIGF4ZXMu?=
In-Reply-To: <1510079819282-0.post@n5.nabble.com>
References: <CAHDsG9N8CofxFoN0Gsw2T8aqUd2sbUuwtbwSNNx5ijM90bOs5w@mail.gmail.com>
 <CAHDsG9N7Xhqie3LbOqqB0NEucTShRTsh_j20zjQ6S++zWsD42w@mail.gmail.com>
 <1510079819282-0.post@n5.nabble.com>
Message-ID: <CAJk8dSAdioQSmZysRmezaVbK-CKaWUwha6jS=3yja88_OtSEjA@mail.gmail.com>

You can combine the rotation+translation operation to achieve the desired
results.

As an alternative you can define a 3x3 rotation matrix to handle these
issues. Some references here : http://planning.cs.uiuc.edu/node102.html and
this one contains much more details (
http://web.cs.iastate.edu/~cs577/handouts/rotation.pdf).
Once you choose your reference frame right, you will be implemented things
the way you want to :)

Hope that helps


Thanks and regards,
Chiranjib

On Wed, Nov 8, 2017 at 12:06 AM, Met at ll <simakov.w at gmail.com> wrote:

> Andrew Maclean-3, thanks for the help.
> But I still do not understand how to get right rotation ...
> The fact is that after you rotate along one axis, the other axes also shift
> and a wrong turn occurs.
> Below is an example from Wikipedia, in VTK also?
> <http://vtk.1045678.n5.nabble.com/file/t342088/Euler2a.gif>
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
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From dave.demarle at kitware.com  Wed Nov  8 16:42:29 2017
From: dave.demarle at kitware.com (David E DeMarle)
Date: Wed, 8 Nov 2017 16:42:29 -0500
Subject: [vtkusers] Opacity problems with vtkOSPRayPass
In-Reply-To: <CAAUP0tvdCi4Fa4qSCW6cM7PK+3=fcvofOPPYcxhHG0aNRyFRyQ@mail.gmail.com>
References: <CAAUP0tvdCi4Fa4qSCW6cM7PK+3=fcvofOPPYcxhHG0aNRyFRyQ@mail.gmail.com>
Message-ID: <CANjZAi9+XAmD3O4Hf1S2gv56_1swZvuEu6Pk4x9KO_cGQCd-rA@mail.gmail.com>

I have a feeling that what is missing is that the vtk2OSPRay interface
doesn't respect the OpacityUnitDistance. Are the images close if you don't
change that?

If not, can you share images and/or data to reproduce with me so I can take
a look?

thanks



David E DeMarle
Kitware, Inc.
Principal Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909

On Mon, Nov 6, 2017 at 9:44 AM, Martina Litterio <mlitterio at pccube.com>
wrote:

> Hi all!
>
> I have a problem using vtkOSPRayPass. I'm reading a DICOM series with
> vtkDICOMImageReader.
>
> My code is :
>
> ..bla bla bla
>
> vtkNew<vtkGPUVolumeRayCastMapper> volumeMapper;
>
>     volumeMapper->SetAutoAdjustSampleDistances(0);
>
>     volumeMapper->SetSampleDistance(0.5);
>
>
>
>     vtkDICOMImageReader* reader = vtkDICOMImageReader::New();
>
>     reader->SetDirectoryName("Path/to/my/DICOM");
>
>     reader->Update();
>
>     volumeMapper->SetInputConnection(reader->GetOutputPort());
>
>
>
>     volumeMapper->AddObserver(vtkCommand::ErrorEvent, errorObserver);
>
>    vtkNew<vtkPiecewiseFunction> pwf;
>
>     pwf->AddPoint(-3024, 0.0);
>
>     pwf->AddPoint(-16, 0.0);
>
>     pwf->AddPoint(641, 0.05);
>
>     pwf->AddPoint(3071, 0.1);
>
>
>
>     ctf->AddRGBPoint( -3024, 0, 0, 0, 0.5, 0.0 );
>
>     ctf->AddRGBPoint( -16, 0.73, 0.25, 0.30, 0.49, .61 );
>
>     ctf->AddRGBPoint( 641, .90, .82, .56, .5, 0.0 );
>
>     ctf->AddRGBPoint( 3071, 1, 1, 1, .5, 0.0 );
>
>
>
>     volumeProperty->SetColor(ctf);
>
>     volumeProperty->SetScalarOpacity(pwf);
>
>     volumeProperty->SetShade(0);
>
>     volumeProperty->SetScalarOpacityUnitDistance(1.732);
>
>
>
>     vtkNew<vtkVolume> volume;
>
>     volume->SetMapper(volumeMapper);
>
>     volume->SetProperty(volumeProperty);
>
>
>
>     // Create the renderwindow, interactor and renderer
>
>     vtkNew<vtkRenderWindow> renderWindow;
>
>     renderWindow->SetMultiSamples(0);
>
>     renderWindow->SetSize(401, 399); // NPOT size
>
>
>
>     vtkNew<vtkRenderer> renderer;
>
>     renderer->SetBackground(0.3, 0.3, 0.4);
>
>     renderWindow->AddRenderer(renderer);
>
>
>
>     renderer->AddVolume(volume);
>
>     renderer->ResetCamera();
>
>     renderWindow->Render();
>
>
>
>     // Attach OSPRay render pass
>
>     vtkNew<vtkOSPRayPass> osprayPass;
>
>     if (useOSP)
>
>     {
>
>         renderer->SetPass(osprayPass);
>
>     }
>
>    vtkNew<vtkRenderWindowInteractor> iren;
>
>     iren->SetRenderWindow(renderWindow);
>
>     vtkNew<vtkInteractorStyleTrackballCamera> style;
>
>     iren->SetInteractorStyle(style);
>
>     iren->Start();
>
> ... bla bla bla
>
>
> Now, the problem is the following. If "useOSP"==FALSE, I have a certain
> opacity (the which one I would like to have in my results); if
> "useOSP"==TRUE, I have a different opacity and I'm not able to manage it as
> I want.
>
> Can you please tell me what's wrong in my code?
>
>
> ?Thanks to everyone!?
>
>
> *Martina Li**tterio*
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>
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From csumushu at 126.com  Wed Nov  8 19:42:52 2017
From: csumushu at 126.com (csumushu)
Date: Wed, 8 Nov 2017 17:42:52 -0700 (MST)
Subject: [vtkusers] Distance between points
In-Reply-To: <CAKKNfuK9OfL5jpFU1PiArf9rqc+pDuiiQRZwR3vYhMTC5wZ3OA@mail.gmail.com>
References: <CAKKNfuJwFoz2AEU8_3YzaXibo3_t882372x1CfjpvqEL3SYkFQ@mail.gmail.com>
 <CANwS1=HDJba1h7qb9HLOsZgvkyVZ5ZyCbLCB0-HPV+THUkjHYg@mail.gmail.com>
 <CAKKNfu+zF1U6j58-RgB-AA+caO6U09Ah4=ErtNNA=dBO=WrTRw@mail.gmail.com>
 <CANwS1=HCX2-r4hVO07Q0Y9LMP7+0KJMTyFAKfdGSv7YvFicp4Q@mail.gmail.com>
 <CAKKNfuLBa9bMY-LHxM_2UR4p__cM8c_G8tJ0423iXrq21yJHVA@mail.gmail.com>
 <CANwS1=Hm69GWeP4C7Lrkq3roEBMFjG0YnrvK=UOBZWu1O4GWFw@mail.gmail.com>
 <CAKKNfuKoxnoMgku_+6OFTYbiGYTSyn6hF2Wy5XjRxzE329muvQ@mail.gmail.com>
 <CAKKNfuK9OfL5jpFU1PiArf9rqc+pDuiiQRZwR3vYhMTC5wZ3OA@mail.gmail.com>
Message-ID: <1510188172539-0.post@n5.nabble.com>

Have you solved it now? I have the same problem,for data of type double, it
does not work.The following code is from
https://lorensen.github.io/VTKExamples/site/CSharp/SimpleOperations/DistanceBetweenPoints/

using System;
using System.Runtime.InteropServices;
using System.Diagnostics;
using Kitware.VTK;

void DistanceBetweenPoints() {
   // Create two points.
   double[] p0 = new double[] { 0.0, 0.0, 0.0 };
   double[] p1 = new double[] { 1.0, 1.0, 1.0 };

   IntPtr pP0 = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(double)) * 3);
   IntPtr pP1 = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(double)) * 3);
   Marshal.Copy(p0, 0, pP0, 3);
   Marshal.Copy(p1, 0, pP1, 3);

   // Find the squared distance between the points.
   double squaredDistance = vtkMath.Distance2BetweenPoints(pP0, pP1);

   // Take the square root to get the Euclidean distance between the points.
   double distance = Math.Sqrt(squaredDistance);

   // Output the results.
   Console.WriteLine("SquaredDistance = " + squaredDistance);
   Console.WriteLine("Distance = " + distance);
   Marshal.FreeHGlobal(pP0);
   Marshal.FreeHGlobal(pP1);
}



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From csumushu at 126.com  Wed Nov  8 20:22:49 2017
From: csumushu at 126.com (csumushu)
Date: Wed, 8 Nov 2017 18:22:49 -0700 (MST)
Subject: [vtkusers] How to use vtkMath functions in ActiViz.NET for data of
 type double?
Message-ID: <1510190569720-0.post@n5.nabble.com>

Hello, guys and ladies
Is there anybody using ActiViz.NET? I am confused about using vtkMath
functions in ActiViz.NET. Take Distance2BetweenPoints as an example, with
double type data can not get the correct result,but it is OK to use float
type. 

The following code is from 
http://lorensen.github.io/VTKExamples/site/CSharp/SimpleOperations/DistanceBetweenPoints/
<http://lorensen.github.io/VTKExamples/site/CSharp/SimpleOperations/DistanceBetweenPoints/>  

using System;
using System.Runtime.InteropServices;
using System.Diagnostics;
using Kitware.VTK;

void DistanceBetweenPoints() {
   // Create two points.
   double[] p0 = new double[] { 0.0, 0.0, 0.0 };
   double[] p1 = new double[] { 1.0, 1.0, 1.0 };

   IntPtr pP0 = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(double)) * 3);
   IntPtr pP1 = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(double)) * 3);
   Marshal.Copy(p0, 0, pP0, 3);
   Marshal.Copy(p1, 0, pP1, 3);

   // Find the squared distance between the points.
   double squaredDistance = vtkMath.Distance2BetweenPoints(pP0, pP1);

   // Take the square root to get the Euclidean distance between the points.
   double distance = Math.Sqrt(squaredDistance);

   // Output the results.
   Console.WriteLine("SquaredDistance = " + squaredDistance);
   Console.WriteLine("Distance = " + distance);
   Marshal.FreeHGlobal(pP0);
   Marshal.FreeHGlobal(pP1);
}

The result is SquaredDistance = 3.515625, Distance = 1.875 with double type,
and SquaredDistance = 3, Distance = 1.73205080756888 for float.

Can anyone tell me where the problem is?



--
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From mark at cascadeacoustic.com  Wed Nov  8 23:04:47 2017
From: mark at cascadeacoustic.com (Mark DeArman)
Date: Wed, 8 Nov 2017 22:04:47 -0600
Subject: [vtkusers] SPAM-LOW: How to use vtkMath functions in
	ActiViz.NET for data of type double?
In-Reply-To: <1510190569720-0.post@n5.nabble.com>
References: <1510190569720-0.post@n5.nabble.com>
Message-ID: <224e6d85244840a68eb44a31069e6864@cascadeacoustic.com>

I looked into it, it appears no ActiViz wrapper was generated for the 
double overload.
 Most likely other functions which are overloaded for both float and double 
will have the same issue.  I would highly recommend building sections of 
code which are going to require significant passing of data between managed 
and unmanaged memory as a C++ DLL and use pinvoke to call the function on 
the pinned arrays.
  
   Mark DeArman
 Cascade Acoustic Research
 http://www.cascadeacoustic.com
 (253) 200-5353

  

----------------------------------------
 From: "csumushu" <csumushu at 126.com>
Sent: Wednesday, November 8, 2017 5:23 PM
To: vtkusers at vtk.org
Subject: SPAM-LOW: [vtkusers] How to use vtkMath functions in ActiViz.NET 
for data of type double?   
Hello, guys and ladies
Is there anybody using ActiViz.NET? I am confused about using vtkMath
functions in ActiViz.NET. Take Distance2BetweenPoints as an example, with
double type data can not get the correct result,but it is OK to use float
type.

The following code is from
http://lorensen.github.io/VTKExamples/site/CSharp/SimpleOperations/DistanceB
etweenPoints/
<http://lorensen.github.io/VTKExamples/site/CSharp/SimpleOperations/Distance
BetweenPoints/>

using System;
using System.Runtime.InteropServices;
using System.Diagnostics;
using Kitware.VTK;

void DistanceBetweenPoints() {
// Create two points.
double[] p0 = new double[] { 0.0, 0.0, 0.0 };
double[] p1 = new double[] { 1.0, 1.0, 1.0 };

IntPtr pP0 = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(double)) * 3);
IntPtr pP1 = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(double)) * 3);
Marshal.Copy(p0, 0, pP0, 3);
Marshal.Copy(p1, 0, pP1, 3);

// Find the squared distance between the points.
double squaredDistance = vtkMath.Distance2BetweenPoints(pP0, pP1);

// Take the square root to get the Euclidean distance between the points.
double distance = Math.Sqrt(squaredDistance);

// Output the results.
Console.WriteLine("SquaredDistance = " + squaredDistance);
Console.WriteLine("Distance = " + distance);
Marshal.FreeHGlobal(pP0);
Marshal.FreeHGlobal(pP1);
}

The result is SquaredDistance = 3.515625, Distance = 1.875 with double 
type,
and SquaredDistance = 3, Distance = 1.73205080756888 for float.

Can anyone tell me where the problem is?

--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
_______________________________________________
Powered by www.kitware.com

Visit other Kitware open-source projects at 
http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at: 
http://www.vtk.org/Wiki/VTK_FAQ

Search the list archives at: http://markmail.org/search/?q=vtkusers

Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/vtkusers
 

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From aralol2015 at gmail.com  Thu Nov  9 01:29:11 2017
From: aralol2015 at gmail.com (Duster U)
Date: Thu, 9 Nov 2017 11:59:11 +0530
Subject: [vtkusers] LegendActor Axis
Message-ID: <CAAymEJ2jqispCzDUXGQyrptAfvLYdXPSgNKHUX1Xap8WTSHkow@mail.gmail.com>

Hello,

Thanks for the tips it helped me.I would like to know if the length of axes
of the legendactor can be modified.I used the corneroffsetfactor value to
change it.Can it be changed using any other means.

Thanks in Advance
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From aralol2015 at gmail.com  Thu Nov  9 01:37:39 2017
From: aralol2015 at gmail.com (Aravinth)
Date: Wed, 8 Nov 2017 23:37:39 -0700 (MST)
Subject: [vtkusers] vtk zoom indicator
In-Reply-To: <CAEcL5t6x-_cyJAEL7cLQ7uMbm50GDWFAVr2bN7nRy-=BecL=uw@mail.gmail.com>
References: <CANuVs=LLJwQCtkk1bCA=C532+zOc9UUNw8ned0se_vVqQ-+4bA@mail.gmail.com>
 <CAEcL5t4cFBB0c_74tsoFxtPyriwx6F2NVCsTwtdV7n7EwcvZ5w@mail.gmail.com>
 <CANuVs=+X6yqtTTU4LAK=F8QkqDE9Rjodh5FutWLJ9tNngVJaRQ@mail.gmail.com>
 <CAEcL5t6x-_cyJAEL7cLQ7uMbm50GDWFAVr2bN7nRy-=BecL=uw@mail.gmail.com>
Message-ID: <1510209459132-0.post@n5.nabble.com>

Hello,

Thanks for the tips it helped me.I would like to know if the length of axes
of the legendactor can be modified.I used the corneroffsetfactor value to
change it.Can it be changed using any other means.

Thanks in Advance

Sankhesh Jhaveri-2 wrote
> There?s no direct API but you can calculate it. All you have to do is
> compute the length of the axis in world coordinates.
> 
> Something like this:
> 
> double * leftPoint =
> axis->GetPositionCoordinate()->GetComputedWorldValue(renderer);double
> * rightPoint =
> axis->GetPosition2Coordinate()->GetComputedWorldValue(renderer);double
> distance = vtkMath::sqrt(vtkMath::Distance2BetweenPoints(leftPoint,
> rightPoint));// Scale is 1 : distance
> 
> Hope that helps.
> 
> Best,
> Sankhesh
> ?
> 
> On Tue, Nov 7, 2017 at 4:30 AM K O ranjith &lt;

> kor1581@

> &gt; wrote:
> 
>> Hello,
>> Thanks, it's  working.
>> Can I get the measured value (which is displayed as label axis) from
>> vtkLegendScaleActor object.
>>
>> Ranjith KO
>>
>> On Fri, Jun 23, 2017 at 7:52 PM, Sankhesh Jhaveri <
>> 

> sankhesh.jhaveri@

>> wrote:
>>
>>> Take a look at vtkLegendScaleActor
>>> &lt;http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/LegendScaleActor&gt;.
>>> It uses vtkAxisActor
>>> &lt;http://www.vtk.org/doc/nightly/html/classvtkAxisActor.html&gt;
>>> internally.
>>>
>>> Hth,
>>> Sankhesh
>>> ?
>>>
>>> On Fri, Jun 23, 2017 at 1:55 AM K O ranjith &lt;

> kor1581@

> &gt; wrote:
>>>
>>>> I'm using vtk for developing a MRI DICOM Image viewer in Qt.
>>>> The viewer uses vtkDICOMImageReader,  vtkImageViewer2 & QVTKWidget.
>>>> I need to show a zoom indicator line which varies length with zoom
>>>> value and need not affect other operation like rotate, pan( which is
>>>> used
>>>> for DICOM image in same window). It's position should be fixed at side
>>>> of
>>>> viewer and should not alter with zoom, pan, rotate.
>>>> I added an line as an vtkactor  to the renderer using vtkLineSource.
>>>>  Its length altering  with zoom as I intended, but problem is its
>>>> position also altering with the zoom, also rotate and Pan affecting on
>>>> it.
>>>> How can I make the position of the line fixed at side of the viewer.
>>>> Have any option in vtk for visual indication of zoom factor something
>>>> like vtkOrientationMarkerWidget for orientation...
>>>>
>>>>
>>>> _______________________________________________
>>>> Powered by www.kitware.com
>>>>
>>>> Visit other Kitware open-source projects at
>>>> http://www.kitware.com/opensource/opensource.html
>>>>
>>>> Please keep messages on-topic and check the VTK FAQ at:
>>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>>
>>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>>
>>>> Follow this link to subscribe/unsubscribe:
>>>> http://public.kitware.com/mailman/listinfo/vtkusers
>>>>
>>> --
>>> Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
>>> &lt;http://www.kitware.com/&gt; | (518) 881-4417
>>> ?
>>>
>>
>> --
> Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
> &lt;http://www.kitware.com/&gt; | (518) 881-4417
> ?
> 
> _______________________________________________
> Powered by www.kitware.com
> 
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
> 
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
> 
> Search the list archives at: http://markmail.org/search/?q=vtkusers
> 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers





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From Wiggerl at Linhuber.info  Thu Nov  9 02:35:47 2017
From: Wiggerl at Linhuber.info (Willy)
Date: Thu, 9 Nov 2017 00:35:47 -0700 (MST)
Subject: [vtkusers] Black cross section between volume and near clipping
	plane?
In-Reply-To: <CAEw35Z88i+yFMKQFo-TvXMCEfeBCtoubgRun2UHZzvyTGw+aFA@mail.gmail.com>
References: <1510156873693-0.post@n5.nabble.com>
 <CAEw35Z88i+yFMKQFo-TvXMCEfeBCtoubgRun2UHZzvyTGw+aFA@mail.gmail.com>
Message-ID: <1510212947261-0.post@n5.nabble.com>

Unfortunately i am working with Visual Studio 2010. It does not support vtk
8.x. Can you name the date of the fix? Maybe i can transfer the changes to
my vtk version and rebuild it. Or is there some kind of workaround?



--
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From csumushu at 126.com  Thu Nov  9 08:44:47 2017
From: csumushu at 126.com (csumushu)
Date: Thu, 9 Nov 2017 06:44:47 -0700 (MST)
Subject: [vtkusers] SPAM-LOW: How to use vtkMath functions in
 ActiViz.NET for data of type double?
In-Reply-To: <224e6d85244840a68eb44a31069e6864@cascadeacoustic.com>
References: <1510190569720-0.post@n5.nabble.com>
 <224e6d85244840a68eb44a31069e6864@cascadeacoustic.com>
Message-ID: <1510235087981-0.post@n5.nabble.com>

Oh wow, nice to see you again, a few days ago I had questions to ask your
advice on Github. 
How about using C++ CLR instead of PInvoke? For some classes, such as
vtkTransform, I want to call the entire class, not some member functions.



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From petersenkolja at gmail.com  Thu Nov  9 13:25:45 2017
From: petersenkolja at gmail.com (Kolja Petersen)
Date: Thu, 9 Nov 2017 19:25:45 +0100
Subject: [vtkusers] vtkJPEGReader can read from memory,
	vtkPNGReader not. why?
Message-ID: <CAPN39MWqqA8QOMXBhzXvoEz1GkgngubcARXYRhYS0+CyYPCGjQ@mail.gmail.com>

Heya,
I was searching for a solution to read PNG data, when I have their bytes in
memory, not on disk.
You can use vtkJPEGReader::SetMemoryBuffer(addr) for JPEG data. I have
tested this successfully.
In https://github.com/Kitware/VTK/blob/master/IO/Image/vtkJPEGReader.cxx,
starting from line 91, is the code for reading from memory.

Why is there no equivalent for vtkPNGReader? Even if I set the MemoryBuffer
for vtkPNGWriter, it tries to read from file and fails if the file doesn't
exist.
Thank you
Kolja

<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
Virenfrei.
www.avast.com
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
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From mark at cascadeacoustic.com  Thu Nov  9 17:02:51 2017
From: mark at cascadeacoustic.com (Mark DeArman)
Date: Thu, 9 Nov 2017 16:02:51 -0600
Subject: [vtkusers] How to use vtkMath functions in ActiViz.NET for data
	of type double?
Message-ID: <c46f77051f394215b91d17837cd3ab0b@cascadeacoustic.com>



Yes, I saw you closed your issue, but I was going to suggest we move the 
discussion over hear beforehand.  It's probably not not something I will 
get around to fixing, but I was interested in tracking down the cause of 
the behavior you were seeing.  

Moving your project into CLR C++ might simplify the work syntactically, but 
your still going to require the same careful attention.  I find it is quite 
easy to write mixed C#/C++ as long as you follow a rigid pattern for how 
you operate on your data, where you do your allocations, and how you write 
your C++ signatures.   
  
///-------------------------------------------------------------------------
---
     Your Code
 
///-------------------------------------------------------------------------
---

  
  // Create two points.
float[] pt0 = new float[3] { 0.0F, 0.0F, 0.0F };
float[] pt1 = new float[3] { 1.0F, 1.0F, 1.0F };
  
 fixed(float* pt0_p = pt0, pt1_p = pt1)
{
    // Find the squared distance between the points.
    squaredDistance = vtkMath.Distance2BetweenPoints(new IntPtr(pt0_p), new 
IntPtr(pt1_p));
}
  
 double distance = Math.Sqrt(squaredDistance);
  
 
///-------------------------------------------------------------------------
---
     The ActiViz generated pinvoke signature 
 
///-------------------------------------------------------------------------
---

  
 [DllImport(vtkCommonCoreEL_dll, CallingConvention = 
CallingConvention.Cdecl, EntryPoint = 
"vtkMath_Distance2BetweenPoints_21")]
internal static extern float vtkMath_Distance2BetweenPoints_21(IntPtr p1, 
IntPtr p2);
  

///-------------------------------------------------------------------------
---
     The ActiViz generated wrapper function
 
///-------------------------------------------------------------------------
---

public static float Distance2BetweenPoints(IntPtr p1, IntPtr p2)
{
    float rv = vtkMath_Distance2BetweenPoints_21(p1, p2);
    return rv;
}
  
 I don't know if it is an option for your project, but as I said 
previously, I normally use the unsafe flag, so that I can do allocation in 
C#, pin those arrays, then pass pointers into C functions to be operated 
on.  Unlike the Activiz autogenerated signature above, by not using IntPtr, 
and using strongly type pointers, its is much easier to keep track of what 
is going on. 
  
   
///-------------------------------------------------------------------------
---
     Sample signature 
 
///-------------------------------------------------------------------------
---

  
 [DllImport(myDSP_dll, CallingConvention = CallingConvention.Cdecl, 
EntryPoint = "myDSP_doSomething")]
internal static extern int myDSP_doSomething(double* input, double* 
output);
  
   
///-------------------------------------------------------------------------
---
     Sample C# Code
 
///-------------------------------------------------------------------------
---

double[] x = new double[3] { 0.0, 0.0, 0.0 };
double[] y = new double[3];
   
 fixed(double* px = x, py = y)
{
    if(!myDSP_doSomething(px,py))
         throw new MyException()
}

  
 With attention to house keeping inside of your C++ DllMain,  it is rather 
easy to keep allocations split up between managed and unmanaged, and stay 
out of trouble generating memory leaks.  So I will end up with only code 
having to do with the GUI, user interaction, in the C# side, and all of the 
data processing happening in C++.

   Mark DeArman
 Cascade Acoustic Research
 http://www.cascadeacoustic.com
 (253) 200-5353

  

----------------------------------------
 From: "csumushu" <csumushu at 126.com>
Sent: Thursday, November 9, 2017 5:45 AM
To: vtkusers at vtk.org
Subject: Re: [vtkusers] SPAM-LOW: How to use vtkMath functions in 
ActiViz.NET for data of type double?   
Oh wow, nice to see you again, a few days ago I had questions to ask your
advice on Github.
How about using C++ CLR instead of PInvoke? For some classes, such as
vtkTransform, I want to call the entire class, not some member functions.

--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
_______________________________________________
Powered by www.kitware.com

Visit other Kitware open-source projects at 
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http://www.vtk.org/Wiki/VTK_FAQ

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From bookandpay at yahoo.com  Thu Nov  9 17:41:37 2017
From: bookandpay at yahoo.com (Todd Martin)
Date: Thu, 9 Nov 2017 22:41:37 +0000 (UTC)
Subject: [vtkusers] Hidden static method
	vtkGenericEnSightReader::CanReadFile()
References: <437436203.6647060.1510267297333.ref@mail.yahoo.com>
Message-ID: <437436203.6647060.1510267297333@mail.yahoo.com>

Hi

This commit has generated some discussion in recent weeks. https://gitlab.kitware.com/todoooo/vtk/commit/9b15f1354e1d7d1574f2f15e90097fd9d4b163da
If you use CanReadFile() from vtkGenericEnSightReader, vtkEnSightReader or vtkEnSightMasterServerReader perhaps you can clarify how it is being used.

I submitted a merge request to change the static method name to vtkGenericEnSightReader::IsEnSightFile() so that it still visible in descendant classes and then made vtkGenericEnSightReader::CanReadFile() non-static virtual. Now it is unclear whether vtkEnSightMasterServerReader should call vtkGenericEnSightReader::CanReadFile() because we simply don't know if the ability of the master server reader to read a file also depends on the file being an EnSight file. If that is the case, then the original implementation was wrong. Can anyone who uses this function please comment?

Freelance Engineer/Software ArchitectB.E. (Mech) Hons, PhD.
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From 278124177 at qq.com  Fri Nov 10 01:15:19 2017
From: 278124177 at qq.com (=?gb18030?B?zui3qM7ozOw=?=)
Date: Fri, 10 Nov 2017 14:15:19 +0800
Subject: [vtkusers] how to know  wheter an smart pointer is null
Message-ID: <tencent_BCD6B2B7711B440D54222399F8B2BEC11E06@qq.com>

hi:
  How can i judge an smart pointer is null?
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From chandan.yeshwanth at siemens.com  Fri Nov 10 01:26:27 2017
From: chandan.yeshwanth at siemens.com (Yeshwanth, Chandan)
Date: Fri, 10 Nov 2017 06:26:27 +0000
Subject: [vtkusers] Current status of hardware accelerated offscreen
	rendering in VTK
Message-ID: <SG2PR06MB0855E30DE54548CF0B4636B4FD540@SG2PR06MB0855.apcprd06.prod.outlook.com>

Hi,

I am interested in hardware accelerated offscreen rendering with VTK (without a display, without an X server). According to these previous threads, VTK doesn't support this by default
- https://www.vtk.org/pipermail/vtkusers/2011-July/068944.html
- https://www.vtk.org/pipermail/vtkusers/2011-March/066907.html
Does anyone know if H/W accelerated offscreen rendering is currently supported (officially) in VTK? Any examples or links will be great!

Thanks,
Chandan
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From woshizyc at gmail.com  Fri Nov 10 03:09:31 2017
From: woshizyc at gmail.com (Yuanchao Zhang)
Date: Fri, 10 Nov 2017 16:09:31 +0800
Subject: [vtkusers] Question about volume rendering
Message-ID: <CAHixygFE+UiqO6+ynTLWMTky46cPpO1amtiqwbnb9rFJ9jevkg@mail.gmail.com>

 Hi, experts,

I am not quite familar with volume rendering using
vtk. I want to overlay one mask image onto another volume and render
them simutaneously. I know vtkGPUVolumeRayCastMapper allows to input a
mask image, this class however requires OPENGL 2 which is not
supported for my computer. Is there any other way to achieve this? Is
there any example for this?

Thanks a lot!

Yuanchao
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From aron.helser at kitware.com  Fri Nov 10 09:49:43 2017
From: aron.helser at kitware.com (Aron Helser)
Date: Fri, 10 Nov 2017 09:49:43 -0500
Subject: [vtkusers] how to know wheter an smart pointer is null
In-Reply-To: <tencent_BCD6B2B7711B440D54222399F8B2BEC11E06@qq.com>
References: <tencent_BCD6B2B7711B440D54222399F8B2BEC11E06@qq.com>
Message-ID: <CAF2skS6yQ3pq1PV7X8X9Ahcoks+aTmjOd5g87hO4L8du9+dj3Q@mail.gmail.com>

Hi!
I believe all the smart pointers have a boolean operator, so you can just
do:
if ( !name ) { //pointer "name" is null... }

On Fri, Nov 10, 2017 at 1:15 AM, ???? <278124177 at qq.com> wrote:

> hi:
>   How can i judge an smart pointer is null?
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>
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From skab12 at gmail.com  Fri Nov 10 12:32:27 2017
From: skab12 at gmail.com (Serge K.)
Date: Fri, 10 Nov 2017 18:32:27 +0100
Subject: [vtkusers] SetClientData in python
Message-ID: <CACydq8pgHqTgdHi-PRf=OosoXMEO4pCL60_X4VUjG3CDBAbYyQ@mail.gmail.com>

Hi All,

I am playing with MouseEventObserver.py example and I would like to add a
ClientData on my callback function. There are many examples in C++ like
this one: https://www.vtk.org/Wiki/VTK/Examples/Cxx/Interaction/ClientData

However, I do not know how to do that in Python.

Indeed, if I create a  vtkCallbackCommand , SetCallBack function does not
exist.

Any Idea? Thanks for your answer.

Serge

ps: python36 - vtk 7.1.1


#!/usr/bin/env pythonfrom __future__ import print_function
import vtksource = vtk.vtkSphereSource()source.SetCenter(0, 0,
0)source.SetRadius(1)source.Update()
mapper = vtk.vtkPolyDataMapper()mapper.SetInputConnection(source.GetOutputPort())
actor = vtk.vtkActor()actor.SetMapper(mapper)
renderer = vtk.vtkRenderer()renderer.SetBackground(1, 1,
1)renderer.AddActor(actor)
renwin = vtk.vtkRenderWindow()renwin.AddRenderer(renderer)
interactor = vtk.vtkRenderWindowInteractor()interactor.SetInteractorStyle(vtk.vtkInteractorStyleTrackballCamera())interactor.SetRenderWindow(renwin)
def DummyFunc(obj, ev, my_obj_2):
    print(obj, my_obj_2)

# obj_2 = vtk.whatever()# How do I pass my obj_2 ?
interactor.AddObserver('LeftButtonPressEvent',
DummyFunc)interactor.Initialize()interactor.Start()
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From david.gobbi at gmail.com  Fri Nov 10 13:17:26 2017
From: david.gobbi at gmail.com (David Gobbi)
Date: Fri, 10 Nov 2017 11:17:26 -0700
Subject: [vtkusers] SetClientData in python
In-Reply-To: <CACydq8pgHqTgdHi-PRf=OosoXMEO4pCL60_X4VUjG3CDBAbYyQ@mail.gmail.com>
References: <CACydq8pgHqTgdHi-PRf=OosoXMEO4pCL60_X4VUjG3CDBAbYyQ@mail.gmail.com>
Message-ID: <CANwS1=E0etTRp-yVA5b7xQoDgKvD7vooyn8fgeakbfYZs+-o1Q@mail.gmail.com>

Hi Serge,

The way to do this in Python is to add attributes to your callback function.

    def DummyFunc(obj, ev, data):
        print(ev, data)

    DummyFunc.CallData = whatever

    interactor.AddObserver('LeftButtonPressEvent', DummyFunc)

So the vtkCallbackCommand really isn't needed in Python (and, as you have
noticed, it really can't be used in Python anyway).

 - David



On Fri, Nov 10, 2017 at 10:32 AM, Serge K. <skab12 at gmail.com> wrote:

> Hi All,
>
> I am playing with MouseEventObserver.py example and I would like to add a
> ClientData on my callback function. There are many examples in C++ like
> this one: https://www.vtk.org/Wiki/VTK/Examples/Cxx/Interaction/ClientData
>
> However, I do not know how to do that in Python.
>
> Indeed, if I create a  vtkCallbackCommand , SetCallBack function does not
> exist.
>
> Any Idea? Thanks for your answer.
>
> Serge
>
> ps: python36 - vtk 7.1.1
>
>
> #!/usr/bin/env pythonfrom __future__ import print_function
> import vtksource = vtk.vtkSphereSource()source.SetCenter(0, 0, 0)source.SetRadius(1)source.Update()
> mapper = vtk.vtkPolyDataMapper()mapper.SetInputConnection(source.GetOutputPort())
> actor = vtk.vtkActor()actor.SetMapper(mapper)
> renderer = vtk.vtkRenderer()renderer.SetBackground(1, 1, 1)renderer.AddActor(actor)
> renwin = vtk.vtkRenderWindow()renwin.AddRenderer(renderer)
> interactor = vtk.vtkRenderWindowInteractor()interactor.SetInteractorStyle(vtk.vtkInteractorStyleTrackballCamera())interactor.SetRenderWindow(renwin)
> def DummyFunc(obj, ev, my_obj_2):
>     print(obj, my_obj_2)
>
> # obj_2 = vtk.whatever()# How do I pass my obj_2 ? interactor.AddObserver('LeftButtonPressEvent', DummyFunc)interactor.Initialize()interactor.Start()
>
>
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From jayavardhanravi at outlook.com  Fri Nov 10 15:38:30 2017
From: jayavardhanravi at outlook.com (Jay)
Date: Fri, 10 Nov 2017 13:38:30 -0700 (MST)
Subject: [vtkusers] VTK sever socket and vtk client socket
In-Reply-To: <1509737377702-0.post@n5.nabble.com>
References: <1509737377702-0.post@n5.nabble.com>
Message-ID: <1510346310275-0.post@n5.nabble.com>

Yes, this can be achieved using the vtkServerSocket and vtkClientSocket

Pseudocode:

// Server Side
serverSocket.CreateServer(portNumber);
clientSocket = serverSocket.WaitForConnection(timeToWaitInms);
clientSocket.Send(data,length);
clientSocket.CloseSocket();

//Client Side
clientSocket.ConnectToServer(IpAddress, port);
clientSocket.Receive(data, length, readMode);
clientSocket.CloseSocket();

Regards,
Jay



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From csumushu at 126.com  Fri Nov 10 20:06:23 2017
From: csumushu at 126.com (csumushu)
Date: Fri, 10 Nov 2017 18:06:23 -0700 (MST)
Subject: [vtkusers] How to use vtkMath functions in ActiViz.NET for data
 of type double?
In-Reply-To: <c46f77051f394215b91d17837cd3ab0b@cascadeacoustic.com>
References: <1510190569720-0.post@n5.nabble.com>
 <c46f77051f394215b91d17837cd3ab0b@cascadeacoustic.com>
Message-ID: <1510362383246-0.post@n5.nabble.com>

Got it, you made it clear. 
BTW, I still don't know the way to build ActiViz  7.1. Is your method
similar to this one?
https://www.vtk.org/Wiki/VTK/CSharp/ActiViz/Build#Visual_Studio_2005_or_2008_.28gccxml_does_not_yet_work_with_Visual_Studio_2010.29
<https://www.vtk.org/Wiki/VTK/CSharp/ActiViz/Build#Visual_Studio_2005_or_2008_.28gccxml_does_not_yet_work_with_Visual_Studio_2010.29>  

Do you have any relevant references? 

Then I tried to build ActiViz 6.3, and I found that the patched activiz.net
and mummy source (uploaded by you) were delete
https://onedrive.live.com/redir?resid=C21891647818579A!108957&authkey=!ADS9VLyqTef24FY&ithint=folder%2c 

I am a newcomer to C# and VTK, and I hope I did not ask too much.Thank you
again.





--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From mark at cascadeacoustic.com  Sat Nov 11 00:21:13 2017
From: mark at cascadeacoustic.com (Mark DeArman)
Date: Fri, 10 Nov 2017 23:21:13 -0600
Subject: [vtkusers] How to use vtkMath functions in ActiViz.NET for data
	of type double?
In-Reply-To: <1510362383246-0.post@n5.nabble.com>
References: <1510190569720-0.post@n5.nabble.com>
 <c46f77051f394215b91d17837cd3ab0b@cascadeacoustic.com>
 <1510362383246-0.post@n5.nabble.com>
Message-ID: <705a11bc43ce459bab8c97fc057ddfbc@cascadeacoustic.com>

The wiki guide was what I followed when I built version 6.3 and initially 
patched mummy.  I just deleted the binaries from OneDrive a few days ago 
after I moved 7.1.1 into github.  
  
 You should be able to follow the wiki guide using the repos from my 
github.  If you use the kitware repos you will have to apply some of the 
patches, which you can get from my github commits. There are only a couple 
changes to make.  I noted which ones had to do with the fact I was building 
with Intel C++.  
  
 You can also just download my gcc-xml, mummy binaries and skip a lot of 
the wiki guide.
 You still will need VS2008 installed to build the wrappers.
  
 I built with Visual Studio 2013, Visual Studio 2008, and ICC 2016.
 For activiz, the relevant (depending on your build environment) variables 
are going to be:
  
 CMAKE_GENERATOR_TOOLSET:INTERNAL=Intel C++ Compiler 16.0
  
 //CXX compiler.
CMAKE_CXX_COMPILER:FILEPATH=C:/Program Files 
(x86)/IntelSWTools/compilers_and_libraries/windows/bin/ia32/icl.exe
  
 //C compiler.
CMAKE_C_COMPILER:FILEPATH=C:/Program Files 
(x86)/IntelSWTools/compilers_and_libraries/windows/bin/ia32/icl.exe
  
  //Path to a file.
MSVC_REDIST_DIR:PATH=C:/Program Files (x86)/Microsoft Visual Studio 
12.0/VC/redist
  
 //The directory containing a CMake configuration file for Mummy.
Mummy_DIR:PATH=J:/GitHub/dearman/mummy-build/share/mummy-1.0.3
  
 //The directory containing a CMake configuration file for VTK.
VTK_DIR:PATH=J:/GitHub/dearman/VTK-build
  
 //Path to a program.
csc_EXECUTABLE:FILEPATH=C:/Windows/Microsoft.NET/Framework/v4.0.30319/csc.ex
e
  
 //Path to a program.
gccxml_EXECUTABLE:FILEPATH=J:/Tools/gccxml/bin/gccxml.exe
 gccxml_compiler:FILEPATH=C:/Program Files (x86)/Microsoft Visual Studio 
9.0/VC/bin/cl.exe
  
 //Path to a program.
mono_EXECUTABLE:FILEPATH=mono_EXECUTABLE-NOTFOUND
  
 //FILEPATH to mummy.exe
mummy_EXECUTABLE:FILEPATH=J:/GitHub/dearman/mummy-build/bin/Debug/mummy. 

     
 Feel free to ask if you have any other questions, I will help if I can.

   
 Mark DeArman
 Cascade Acoustic Research
 http://www.cascadeacoustic.com
 (253) 200-5353

  

----------------------------------------
 From: "csumushu" <csumushu at 126.com>
Sent: Friday, November 10, 2017 5:06 PM
To: vtkusers at vtk.org
Subject: Re: [vtkusers] How to use vtkMath functions in ActiViz.NET for 
data of type double?   
Got it, you made it clear.
BTW, I still don't know the way to build ActiViz 7.1. Is your method
similar to this one?
https://www.vtk.org/Wiki/VTK/CSharp/ActiViz/Build#Visual_Studio_2005_or_2008
_.28gccxml_does_not_yet_work_with_Visual_Studio_2010.29
<https://www.vtk.org/Wiki/VTK/CSharp/ActiViz/Build#Visual_Studio_2005_or_200
8_.28gccxml_does_not_yet_work_with_Visual_Studio_2010.29>

Do you have any relevant references?

Then I tried to build ActiViz 6.3, and I found that the patched 
activiz.net
and mummy source (uploaded by you) were delete
https://onedrive.live.com/redir?resid=C21891647818579A!108957&authkey=!ADS9V
LyqTef24FY&ithint=folder%2c

I am a newcomer to C# and VTK, and I hope I did not ask too much.Thank you
again.

--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
_______________________________________________
Powered by www.kitware.com

Visit other Kitware open-source projects at 
http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at: 
http://www.vtk.org/Wiki/VTK_FAQ

Search the list archives at: http://markmail.org/search/?q=vtkusers

Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/vtkusers
 

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From andrew.amaclean at gmail.com  Sat Nov 11 16:59:00 2017
From: andrew.amaclean at gmail.com (Andrew Maclean)
Date: Sun, 12 Nov 2017 08:59:00 +1100
Subject: [vtkusers]
	=?utf-8?q?=E2=80=8BSetClientData_in_python_=28David_Go?=
	=?utf-8?q?bbi=29?=
Message-ID: <CAHDsG9M8Vm=kHzYk1o-ny2=ZXT9kNKxNLqVB_q+tVV-eZmnbRg@mail.gmail.com>

David,

When I try this I get:
TypeError: DummyFunc() missing 1 required positional argument: 'data'

I used a slightly different approach in
https://lorensen.github.io/VTKExamples/site/Python/VisualizationAlgorithms/StreamlinesWithLineWidget/


Regards
   Andrew

?
   2. Re:
??
SetClientData in python (David Gobbi)
>
> ---------- Forwarded message ----------
> From: David Gobbi <david.gobbi at gmail.com>
> To:
> ??
>  "Serge K." <skab12 at gmail.com>
> Cc: VTK Users <vtkusers at vtk.org>
> Bcc:
> Date: Fri, 10 Nov 2017 11:17:26 -0700
> Subject: Re: [vtkusers] SetClientData in python
> Hi Serge,
>
> The way to do this in Python is to add attributes to your callback
> function.
>
>     def DummyFunc(obj, ev, data):
>         print(ev, data)
>
>
> ??
> DummyFunc.CallData = whatever
>
>     interactor.AddObserver('LeftButtonPressEvent', DummyFunc)
>
> So the vtkCallbackCommand really isn't needed in Python (and, as you have
> noticed, it really can't be used in Python anyway).
>
>  - David
>
>
>
> On Fri, Nov 10, 2017 at 10:32 AM, Serge K. <skab12 at gmail.com> wrote:
>
>> Hi All,
>>
>> I am playing with MouseEventObserver.py example and I would like to add a
>> ClientData on my callback function. There are many examples in C++ like
>> this one: https://www.vtk.org/Wiki/VTK/Examples/Cxx/Interaction/C
>> lientData
>>
>> However, I do not know how to do that in Python.
>>
>> Indeed, if I create a  vtkCallbackCommand , SetCallBack function does
>> not exist.
>>
>> Any Idea? Thanks for your answer.
>>
>> Serge
>>
>> ps: python36 - vtk 7.1.1
>>
>>
>> ??
>> #!/usr/bin/env pythonfrom __future__ import print_function
>> import vtksource = vtk.vtkSphereSource()source.SetCenter(0, 0, 0)source.SetRadius(1)source.Update()
>> mapper = vtk.vtkPolyDataMapper()mapper.SetInputConnection(source.GetOutputPort())
>> actor = vtk.vtkActor()actor.SetMapper(mapper)
>> renderer = vtk.vtkRenderer()renderer.SetBackground(1, 1, 1)renderer.AddActor(actor)
>> renwin = vtk.vtkRenderWindow()renwin.AddRenderer(renderer)
>> interactor = vtk.vtkRenderWindowInteractor()interactor.SetInteractorStyle(vtk.vtkInteractorStyleTrackballCamera())interactor.SetRenderWindow(renwin)
>> def DummyFunc(obj, ev, my_obj_2):
>>     print(obj, my_obj_2)
>>
>> # obj_2 = vtk.whatever()# How do I pass my obj_2 ? interactor.AddObserver('LeftButtonPressEvent', DummyFunc)interactor.Initialize()interactor.Start()
>>
>>
>
>
-- 
___________________________________________
Andrew J. P. Maclean

___________________________________________
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From andrew.amaclean at gmail.com  Sat Nov 11 17:46:20 2017
From: andrew.amaclean at gmail.com (Andrew Maclean)
Date: Sun, 12 Nov 2017 09:46:20 +1100
Subject: [vtkusers]
	=?utf-8?q?=E2=80=8BSetClientData_in_python_=28David_Go?=
	=?utf-8?q?bbi=29?=
In-Reply-To: <CAHDsG9M8Vm=kHzYk1o-ny2=ZXT9kNKxNLqVB_q+tVV-eZmnbRg@mail.gmail.com>
References: <CAHDsG9M8Vm=kHzYk1o-ny2=ZXT9kNKxNLqVB_q+tVV-eZmnbRg@mail.gmail.com>
Message-ID: <CAHDsG9NYmxG-GqwOCZTPHavn0ThEC5CcBo-_OrSLZybC-h2hAg@mail.gmail.com>

Ok
I have got it.
This works:

def DummyFunc(obj, ev):
    print(ev, DummyFunc.data)

DummyFunc.data = renwin
# How do I pass my obj_2 ?
interactor.AddObserver('LeftButtonPressEvent', DummyFunc)


?David, you may be able to explain this better than I can but I assume this
is what happens:?
    Here we are adding a new attribute to DummyFunc. We can do this because
Python functions are in fact objects.

?This is something totally strange to C++ programmers!

What a neat approach!?



On Sun, Nov 12, 2017 at 8:59 AM, Andrew Maclean <andrew.amaclean at gmail.com>
wrote:

> David,
>
> When I try this I get:
> TypeError: DummyFunc() missing 1 required positional argument: 'data'
>
> I used a slightly different approach in  https://lorensen.github.io/
> VTKExamples/site/Python/VisualizationAlgorithms/StreamlinesWithLineWidget/
>
>
> Regards
>    Andrew
>
> ?
>    2. Re:
> ??
> SetClientData in python (David Gobbi)
>>
>> ---------- Forwarded message ----------
>> From: David Gobbi <david.gobbi at gmail.com>
>> To:
>> ??
>>  "Serge K." <skab12 at gmail.com>
>> Cc: VTK Users <vtkusers at vtk.org>
>> Bcc:
>> Date: Fri, 10 Nov 2017 11:17:26 -0700
>> Subject: Re: [vtkusers] SetClientData in python
>> Hi Serge,
>>
>> The way to do this in Python is to add attributes to your callback
>> function.
>>
>>     def DummyFunc(obj, ev, data):
>>         print(ev, data)
>>
>>
>> ??
>> DummyFunc.CallData = whatever
>>
>>     interactor.AddObserver('LeftButtonPressEvent', DummyFunc)
>>
>> So the vtkCallbackCommand really isn't needed in Python (and, as you have
>> noticed, it really can't be used in Python anyway).
>>
>>  - David
>>
>>
>>
>> On Fri, Nov 10, 2017 at 10:32 AM, Serge K. <skab12 at gmail.com> wrote:
>>
>>> Hi All,
>>>
>>> I am playing with MouseEventObserver.py example and I would like to add
>>> a ClientData on my callback function. There are many examples in C++ like
>>> this one: https://www.vtk.org/Wiki/VTK/Examples/Cxx/Interaction/C
>>> lientData
>>>
>>> However, I do not know how to do that in Python.
>>>
>>> Indeed, if I create a  vtkCallbackCommand , SetCallBack function does
>>> not exist.
>>>
>>> Any Idea? Thanks for your answer.
>>>
>>> Serge
>>>
>>> ps: python36 - vtk 7.1.1
>>>
>>>
>>> ??
>>> #!/usr/bin/env pythonfrom __future__ import print_function
>>> import vtksource = vtk.vtkSphereSource()source.SetCenter(0, 0, 0)source.SetRadius(1)source.Update()
>>> mapper = vtk.vtkPolyDataMapper()mapper.SetInputConnection(source.GetOutputPort())
>>> actor = vtk.vtkActor()actor.SetMapper(mapper)
>>> renderer = vtk.vtkRenderer()renderer.SetBackground(1, 1, 1)renderer.AddActor(actor)
>>> renwin = vtk.vtkRenderWindow()renwin.AddRenderer(renderer)
>>> interactor = vtk.vtkRenderWindowInteractor()interactor.SetInteractorStyle(vtk.vtkInteractorStyleTrackballCamera())interactor.SetRenderWindow(renwin)
>>> def DummyFunc(obj, ev, my_obj_2):
>>>     print(obj, my_obj_2)
>>>
>>> # obj_2 = vtk.whatever()# How do I pass my obj_2 ? interactor.AddObserver('LeftButtonPressEvent', DummyFunc)interactor.Initialize()interactor.Start()
>>>
>>>
>>
>>
> --
> ___________________________________________
> Andrew J. P. Maclean
>
> ___________________________________________
>



-- 
___________________________________________
Andrew J. P. Maclean

___________________________________________
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From andrew.amaclean at gmail.com  Sat Nov 11 18:07:25 2017
From: andrew.amaclean at gmail.com (Andrew Maclean)
Date: Sun, 12 Nov 2017 10:07:25 +1100
Subject: [vtkusers]
	=?utf-8?q?=E2=80=8BSetClientData_in_python_=28David_Go?=
	=?utf-8?q?bbi=29?=
In-Reply-To: <CAHDsG9M8Vm=kHzYk1o-ny2=ZXT9kNKxNLqVB_q+tVV-eZmnbRg@mail.gmail.com>
References: <CAHDsG9M8Vm=kHzYk1o-ny2=ZXT9kNKxNLqVB_q+tVV-eZmnbRg@mail.gmail.com>
Message-ID: <CAHDsG9P9khzCc3qUpqHF0UM5QLSVhqwjPePSuqSWNAo_pTAhmg@mail.gmail.com>

I'll do an example for this.

I'm also thinking that since we are using C++11 we should be able to use
lambda expressions. I'll also do an example for that.

Regards
   Andrew


On Sun, Nov 12, 2017 at 8:59 AM, Andrew Maclean <andrew.amaclean at gmail.com>
wrote:

> David,
>
> When I try this I get:
> TypeError: DummyFunc() missing 1 required positional argument: 'data'
>
> I used a slightly different approach in  https://lorensen.github.io/
> VTKExamples/site/Python/VisualizationAlgorithms/StreamlinesWithLineWidget/
>
>
> Regards
>    Andrew
>
> ?
>    2. Re:
> ??
> SetClientData in python (David Gobbi)
>>
>> ---------- Forwarded message ----------
>> From: David Gobbi <david.gobbi at gmail.com>
>> To:
>> ??
>>  "Serge K." <skab12 at gmail.com>
>> Cc: VTK Users <vtkusers at vtk.org>
>> Bcc:
>> Date: Fri, 10 Nov 2017 11:17:26 -0700
>> Subject: Re: [vtkusers] SetClientData in python
>> Hi Serge,
>>
>> The way to do this in Python is to add attributes to your callback
>> function.
>>
>>     def DummyFunc(obj, ev, data):
>>         print(ev, data)
>>
>>
>> ??
>> DummyFunc.CallData = whatever
>>
>>     interactor.AddObserver('LeftButtonPressEvent', DummyFunc)
>>
>> So the vtkCallbackCommand really isn't needed in Python (and, as you have
>> noticed, it really can't be used in Python anyway).
>>
>>  - David
>>
>>
>>
>> On Fri, Nov 10, 2017 at 10:32 AM, Serge K. <skab12 at gmail.com> wrote:
>>
>>> Hi All,
>>>
>>> I am playing with MouseEventObserver.py example and I would like to add
>>> a ClientData on my callback function. There are many examples in C++ like
>>> this one: https://www.vtk.org/Wiki/VTK/Examples/Cxx/Interaction/C
>>> lientData
>>>
>>> However, I do not know how to do that in Python.
>>>
>>> Indeed, if I create a  vtkCallbackCommand , SetCallBack function does
>>> not exist.
>>>
>>> Any Idea? Thanks for your answer.
>>>
>>> Serge
>>>
>>> ps: python36 - vtk 7.1.1
>>>
>>>
>>> ??
>>> #!/usr/bin/env pythonfrom __future__ import print_function
>>> import vtksource = vtk.vtkSphereSource()source.SetCenter(0, 0, 0)source.SetRadius(1)source.Update()
>>> mapper = vtk.vtkPolyDataMapper()mapper.SetInputConnection(source.GetOutputPort())
>>> actor = vtk.vtkActor()actor.SetMapper(mapper)
>>> renderer = vtk.vtkRenderer()renderer.SetBackground(1, 1, 1)renderer.AddActor(actor)
>>> renwin = vtk.vtkRenderWindow()renwin.AddRenderer(renderer)
>>> interactor = vtk.vtkRenderWindowInteractor()interactor.SetInteractorStyle(vtk.vtkInteractorStyleTrackballCamera())interactor.SetRenderWindow(renwin)
>>> def DummyFunc(obj, ev, my_obj_2):
>>>     print(obj, my_obj_2)
>>>
>>> # obj_2 = vtk.whatever()# How do I pass my obj_2 ? interactor.AddObserver('LeftButtonPressEvent', DummyFunc)interactor.Initialize()interactor.Start()
>>>
>>>
>>
>>
> --
> ___________________________________________
> Andrew J. P. Maclean
>
> ___________________________________________
>



-- 
___________________________________________
Andrew J. P. Maclean

___________________________________________
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From bill.lorensen at gmail.com  Sat Nov 11 18:32:42 2017
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Sat, 11 Nov 2017 18:32:42 -0500
Subject: [vtkusers]
	=?utf-8?q?=E2=80=8BSetClientData_in_python_=28David_Go?=
	=?utf-8?q?bbi=29?=
In-Reply-To: <CAHDsG9P9khzCc3qUpqHF0UM5QLSVhqwjPePSuqSWNAo_pTAhmg@mail.gmail.com>
References: <CAHDsG9M8Vm=kHzYk1o-ny2=ZXT9kNKxNLqVB_q+tVV-eZmnbRg@mail.gmail.com>
 <CAHDsG9P9khzCc3qUpqHF0UM5QLSVhqwjPePSuqSWNAo_pTAhmg@mail.gmail.com>
Message-ID: <CADZJ4hNcohBkkf3sBNtbFzY-Ct304QEHpp4R6QQdRUgvq3C=QQ@mail.gmail.com>

Andrew,

I do want to make the examples available to at least 6.0 users. We can
add c++ 11 stuff if we can exclude those examples based on VTK
versions.

Bill


On Sat, Nov 11, 2017 at 6:07 PM, Andrew Maclean
<andrew.amaclean at gmail.com> wrote:
> I'll do an example for this.
>
> I'm also thinking that since we are using C++11 we should be able to use
> lambda expressions. I'll also do an example for that.
>
> Regards
>    Andrew
>
>
> On Sun, Nov 12, 2017 at 8:59 AM, Andrew Maclean <andrew.amaclean at gmail.com>
> wrote:
>>
>> David,
>>
>> When I try this I get:
>> TypeError: DummyFunc() missing 1 required positional argument: 'data'
>>
>> I used a slightly different approach in
>> https://lorensen.github.io/VTKExamples/site/Python/VisualizationAlgorithms/StreamlinesWithLineWidget/
>>
>> Regards
>>    Andrew
>>
>>    2. Re:
>> SetClientData in python (David Gobbi)
>>>
>>> ---------- Forwarded message ----------
>>> From: David Gobbi <david.gobbi at gmail.com>
>>> To:
>>>  "Serge K." <skab12 at gmail.com>
>>> Cc: VTK Users <vtkusers at vtk.org>
>>> Bcc:
>>> Date: Fri, 10 Nov 2017 11:17:26 -0700
>>> Subject: Re: [vtkusers] SetClientData in python
>>> Hi Serge,
>>>
>>> The way to do this in Python is to add attributes to your callback
>>> function.
>>>
>>>     def DummyFunc(obj, ev, data):
>>>         print(ev, data)
>>>
>>>
>>> DummyFunc.CallData = whatever
>>>
>>>     interactor.AddObserver('LeftButtonPressEvent', DummyFunc)
>>>
>>> So the vtkCallbackCommand really isn't needed in Python (and, as you have
>>> noticed, it really can't be used in Python anyway).
>>>
>>>  - David
>>>
>>>
>>>
>>> On Fri, Nov 10, 2017 at 10:32 AM, Serge K. <skab12 at gmail.com> wrote:
>>>>
>>>> Hi All,
>>>>
>>>> I am playing with MouseEventObserver.py example and I would like to add
>>>> a ClientData on my callback function. There are many examples in C++ like
>>>> this one: https://www.vtk.org/Wiki/VTK/Examples/Cxx/Interaction/ClientData
>>>>
>>>> However, I do not know how to do that in Python.
>>>>
>>>> Indeed, if I create a  vtkCallbackCommand , SetCallBack function does
>>>> not exist.
>>>>
>>>> Any Idea? Thanks for your answer.
>>>>
>>>> Serge
>>>>
>>>> ps: python36 - vtk 7.1.1
>>>>
>>>>
>>>> #!/usr/bin/env python
>>>> from __future__ import print_function
>>>>
>>>> import vtk
>>>>
>>>> source = vtk.vtkSphereSource()
>>>> source.SetCenter(0, 0, 0)
>>>> source.SetRadius(1)
>>>> source.Update()
>>>>
>>>> mapper = vtk.vtkPolyDataMapper()
>>>> mapper.SetInputConnection(source.GetOutputPort())
>>>>
>>>> actor = vtk.vtkActor()
>>>> actor.SetMapper(mapper)
>>>>
>>>> renderer = vtk.vtkRenderer()
>>>> renderer.SetBackground(1, 1, 1)
>>>> renderer.AddActor(actor)
>>>>
>>>> renwin = vtk.vtkRenderWindow()
>>>> renwin.AddRenderer(renderer)
>>>>
>>>> interactor = vtk.vtkRenderWindowInteractor()
>>>> interactor.SetInteractorStyle(vtk.vtkInteractorStyleTrackballCamera())
>>>> interactor.SetRenderWindow(renwin)
>>>>
>>>> def DummyFunc(obj, ev, my_obj_2):
>>>>     print(obj, my_obj_2)
>>>>
>>>> # obj_2 = vtk.whatever()
>>>> # How do I pass my obj_2 ?
>>>> interactor.AddObserver('LeftButtonPressEvent', DummyFunc)
>>>> interactor.Initialize()
>>>> interactor.Start()
>>>
>>>
>>>
>>
>> --
>> ___________________________________________
>> Andrew J. P. Maclean
>>
>> ___________________________________________
>
>
>
>
> --
> ___________________________________________
> Andrew J. P. Maclean
>
> ___________________________________________
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



-- 
Unpaid intern in BillsBasement at noware dot com

From andrew.amaclean at gmail.com  Sat Nov 11 20:06:36 2017
From: andrew.amaclean at gmail.com (Andrew Maclean)
Date: Sun, 12 Nov 2017 12:06:36 +1100
Subject: [vtkusers]
	=?utf-8?q?=E2=80=8BSetClientData_in_python_=28David_Go?=
	=?utf-8?q?bbi=29?=
In-Reply-To: <CADZJ4hNcohBkkf3sBNtbFzY-Ct304QEHpp4R6QQdRUgvq3C=QQ@mail.gmail.com>
References: <CAHDsG9M8Vm=kHzYk1o-ny2=ZXT9kNKxNLqVB_q+tVV-eZmnbRg@mail.gmail.com>
 <CAHDsG9P9khzCc3qUpqHF0UM5QLSVhqwjPePSuqSWNAo_pTAhmg@mail.gmail.com>
 <CADZJ4hNcohBkkf3sBNtbFzY-Ct304QEHpp4R6QQdRUgvq3C=QQ@mail.gmail.com>
Message-ID: <CAHDsG9MFkRbfB0XYBpvEpq+uwAKAwwRoAts7EFSiQfUo84CAGg@mail.gmail.com>

We should be able to do this.

Andrew Maclean

On 12 Nov 2017 10:32, "Bill Lorensen" <bill.lorensen at gmail.com> wrote:

> Andrew,
>
> I do want to make the examples available to at least 6.0 users. We can
> add c++ 11 stuff if we can exclude those examples based on VTK
> versions.
>
> Bill
>
>
> On Sat, Nov 11, 2017 at 6:07 PM, Andrew Maclean
> <andrew.amaclean at gmail.com> wrote:
> > I'll do an example for this.
> >
> > I'm also thinking that since we are using C++11 we should be able to use
> > lambda expressions. I'll also do an example for that.
> >
> > Regards
> >    Andrew
> >
> >
> > On Sun, Nov 12, 2017 at 8:59 AM, Andrew Maclean <
> andrew.amaclean at gmail.com>
> > wrote:
> >>
> >> David,
> >>
> >> When I try this I get:
> >> TypeError: DummyFunc() missing 1 required positional argument: 'data'
> >>
> >> I used a slightly different approach in
> >> https://lorensen.github.io/VTKExamples/site/Python/
> VisualizationAlgorithms/StreamlinesWithLineWidget/
> >>
> >> Regards
> >>    Andrew
> >>
> >>    2. Re:
> >> SetClientData in python (David Gobbi)
> >>>
> >>> ---------- Forwarded message ----------
> >>> From: David Gobbi <david.gobbi at gmail.com>
> >>> To:
> >>>  "Serge K." <skab12 at gmail.com>
> >>> Cc: VTK Users <vtkusers at vtk.org>
> >>> Bcc:
> >>> Date: Fri, 10 Nov 2017 11:17:26 -0700
> >>> Subject: Re: [vtkusers] SetClientData in python
> >>> Hi Serge,
> >>>
> >>> The way to do this in Python is to add attributes to your callback
> >>> function.
> >>>
> >>>     def DummyFunc(obj, ev, data):
> >>>         print(ev, data)
> >>>
> >>>
> >>> DummyFunc.CallData = whatever
> >>>
> >>>     interactor.AddObserver('LeftButtonPressEvent', DummyFunc)
> >>>
> >>> So the vtkCallbackCommand really isn't needed in Python (and, as you
> have
> >>> noticed, it really can't be used in Python anyway).
> >>>
> >>>  - David
> >>>
> >>>
> >>>
> >>> On Fri, Nov 10, 2017 at 10:32 AM, Serge K. <skab12 at gmail.com> wrote:
> >>>>
> >>>> Hi All,
> >>>>
> >>>> I am playing with MouseEventObserver.py example and I would like to
> add
> >>>> a ClientData on my callback function. There are many examples in C++
> like
> >>>> this one: https://www.vtk.org/Wiki/VTK/Examples/Cxx/Interaction/
> ClientData
> >>>>
> >>>> However, I do not know how to do that in Python.
> >>>>
> >>>> Indeed, if I create a  vtkCallbackCommand , SetCallBack function does
> >>>> not exist.
> >>>>
> >>>> Any Idea? Thanks for your answer.
> >>>>
> >>>> Serge
> >>>>
> >>>> ps: python36 - vtk 7.1.1
> >>>>
> >>>>
> >>>> #!/usr/bin/env python
> >>>> from __future__ import print_function
> >>>>
> >>>> import vtk
> >>>>
> >>>> source = vtk.vtkSphereSource()
> >>>> source.SetCenter(0, 0, 0)
> >>>> source.SetRadius(1)
> >>>> source.Update()
> >>>>
> >>>> mapper = vtk.vtkPolyDataMapper()
> >>>> mapper.SetInputConnection(source.GetOutputPort())
> >>>>
> >>>> actor = vtk.vtkActor()
> >>>> actor.SetMapper(mapper)
> >>>>
> >>>> renderer = vtk.vtkRenderer()
> >>>> renderer.SetBackground(1, 1, 1)
> >>>> renderer.AddActor(actor)
> >>>>
> >>>> renwin = vtk.vtkRenderWindow()
> >>>> renwin.AddRenderer(renderer)
> >>>>
> >>>> interactor = vtk.vtkRenderWindowInteractor()
> >>>> interactor.SetInteractorStyle(vtk.vtkInteractorStyleTrackballCam
> era())
> >>>> interactor.SetRenderWindow(renwin)
> >>>>
> >>>> def DummyFunc(obj, ev, my_obj_2):
> >>>>     print(obj, my_obj_2)
> >>>>
> >>>> # obj_2 = vtk.whatever()
> >>>> # How do I pass my obj_2 ?
> >>>> interactor.AddObserver('LeftButtonPressEvent', DummyFunc)
> >>>> interactor.Initialize()
> >>>> interactor.Start()
> >>>
> >>>
> >>>
> >>
> >> --
> >> ___________________________________________
> >> Andrew J. P. Maclean
> >>
> >> ___________________________________________
> >
> >
> >
> >
> > --
> > ___________________________________________
> > Andrew J. P. Maclean
> >
> > ___________________________________________
> >
> > _______________________________________________
> > Powered by www.kitware.com
> >
> > Visit other Kitware open-source projects at
> > http://www.kitware.com/opensource/opensource.html
> >
> > Please keep messages on-topic and check the VTK FAQ at:
> > http://www.vtk.org/Wiki/VTK_FAQ
> >
> > Search the list archives at: http://markmail.org/search/?q=vtkusers
> >
> > Follow this link to subscribe/unsubscribe:
> > http://public.kitware.com/mailman/listinfo/vtkusers
> >
>
>
>
> --
> Unpaid intern in BillsBasement at noware dot com
>
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From hlukeh at hotmail.com  Sun Nov 12 00:24:43 2017
From: hlukeh at hotmail.com (hlukeh)
Date: Sat, 11 Nov 2017 22:24:43 -0700 (MST)
Subject: [vtkusers] vtkLandmarkTransform
Message-ID: <1510464283661-0.post@n5.nabble.com>

I'm trying to find the best fit of a circular set of landmarks lying almost
on a plane to a point cloud. I'm currently using a vtkLandmarkTransform with
the mode set to Rigid Body. This does a good job of matching the two sets of
data, but sometimes the best fit is found with a rotation and translation
when I only want a translation (even if the fit isn't quite as good). 

I see three modes in the landmark transform, Rigid Body, Similarity and
Affine, but all of those include rotation and translation (and scaling for
Similarity).

Does anyone know what transform could be used to match a set of landmarks to
a set of points but limiting the method to translation only? 

Thank you,

Luke



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From csumushu at 126.com  Sun Nov 12 04:33:05 2017
From: csumushu at 126.com (csumushu)
Date: Sun, 12 Nov 2017 02:33:05 -0700 (MST)
Subject: [vtkusers] How to use vtkMath functions in ActiViz.NET for data
 of type double?
In-Reply-To: <705a11bc43ce459bab8c97fc057ddfbc@cascadeacoustic.com>
References: <1510190569720-0.post@n5.nabble.com>
 <c46f77051f394215b91d17837cd3ab0b@cascadeacoustic.com>
 <1510362383246-0.post@n5.nabble.com>
 <705a11bc43ce459bab8c97fc057ddfbc@cascadeacoustic.com>
Message-ID: <1510479185751-0.post@n5.nabble.com>

Hello, Mark, I'm sorry I have to trouble you again. When I build mummy which
downloaded from you github according to wiki suggestions with vs 2008, it
will call other app to open cxx files, such as
C:\VTK\mummy-build\Examples\Vehicles\wrappers\csharpmummy\xml\VehicleDescriptor_gccxml.cxx.
I don't know what I need to do. If I do nothing, compilation will not
continue. I tried to close the cxx file,  it will generate an error:

Generating xml/VehicleDescriptor.xml
m_GCCXML_COMPILER:
C:/VTK/mummy-build/Examples/Vehicles/wrappers/csharpmummy/xml/VehicleDescriptor_gccxml.cxx
compilerName: vehicledescriptor_gccxml.cxx
compilerID: ERROR_unsupported_compiler_in_gxConfiguration_GetCompilerId
Compiler
"C:/VTK/mummy-build/Examples/Vehicles/wrappers/csharpmummy/xml/VehicleDescriptor_gccxml.cxx"
is not supported by GCC_XML.
(gxConfiguration::FindFlags)
Could not determine GCCXML_FLAGS setting.

What should I do?





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From onatt at gmx.de  Sun Nov 12 09:26:09 2017
From: onatt at gmx.de (Oliver Natt)
Date: Sun, 12 Nov 2017 15:26:09 +0100
Subject: [vtkusers]
 =?utf-8?q?=E2=80=8BSetClientData_in_python_=28David_Go?=
 =?utf-8?q?bbi=29?=
In-Reply-To: <CAHDsG9NYmxG-GqwOCZTPHavn0ThEC5CcBo-_OrSLZybC-h2hAg@mail.gmail.com>
References: <CAHDsG9M8Vm=kHzYk1o-ny2=ZXT9kNKxNLqVB_q+tVV-eZmnbRg@mail.gmail.com>
 <CAHDsG9NYmxG-GqwOCZTPHavn0ThEC5CcBo-_OrSLZybC-h2hAg@mail.gmail.com>
Message-ID: <860a9c93-8184-89b1-dc31-5fea4e9846e8@gmx.de>

Dear Andrew,

Davids proposal ist great. However, it appears a bit strange to most 
programmers. I prefer for this purpose to make a new class which is a 
callable. I think, this makes the code more readable for most 
programmers since the data attribute is already initialized within the 
class itself. Your example would look like this:

class DummyCallback:
 ??? def __init__(self, data):
 ??? ??? self.data = data
 ??? def __call__(self, obj, event):
 ??? ??? print(ev, self.data)

cb = DummyCallback(renwin)
interactor.AddObserver('LeftButtonPressEvent', cb)

The last two lines can, of course, be abbreviated to:
interactor.AddObserver('LeftButtonPressEvent', DummyCallback(renwin))

Best regards
Oliver


Am 11.11.2017 um 23:46 schrieb Andrew Maclean:
> Ok
> I have got it.
> This works:
>
> def DummyFunc(obj, ev):
>      print(ev, DummyFunc.data)
>
> DummyFunc.data = renwin
> # How do I pass my obj_2 ? interactor.AddObserver('LeftButtonPressEvent', DummyFunc)
>
> ?David, you may be able to explain this better than I can but I assume 
> this is what happens:?
> ? ? Here we are adding a new attribute to DummyFunc. We can do this 
> because Python functions are in fact objects.
>
> ?This is something totally strange to C++ programmers!
>
> What a neat approach!?
>
>

-- 
Oliver Natt,

J?gerstra?e 26b
90451 N?rnberg

Phone:   +49 (0)  9 11 - 71 58 71 40
Mobile   +49 (0)  1 76 - 20 82 27 38
E-Mail:  onatt at gmx.de

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From mark at cascadeacoustic.com  Sun Nov 12 18:07:58 2017
From: mark at cascadeacoustic.com (Mark DeArman)
Date: Sun, 12 Nov 2017 17:07:58 -0600
Subject: [vtkusers] How to use vtkMath functions in ActiViz.NET for data
	of type double?
In-Reply-To: <1510479185751-0.post@n5.nabble.com>
References: <1510190569720-0.post@n5.nabble.com>
 <c46f77051f394215b91d17837cd3ab0b@cascadeacoustic.com>
 <1510362383246-0.post@n5.nabble.com>
 <705a11bc43ce459bab8c97fc057ddfbc@cascadeacoustic.com>
 <1510479185751-0.post@n5.nabble.com>
Message-ID: <dbc1c7731baa4458a68df40192ac6862@cascadeacoustic.com>

I would diff your CMakeCache.txt against the CMakeCache.sample I provided 
in the repo.  It sounds like you don't have gcc-xml working quite right.  
Also:
  
  	There are a couple of errors generated during the build process that I 
never tracked down, but they do not stop the binaries from being built.  	I 
can not remember if you have to build Mummy step-by-step or not, but I 
would give that a try, instead of just calling ALL_BUILD. 	It is not 
necessary to built the samples 
  
   Mark DeArman
 Cascade Acoustic Research
 http://www.cascadeacoustic.com
 (253) 200-5353

  

----------------------------------------
 From: "csumushu" <csumushu at 126.com>
Sent: Sunday, November 12, 2017 1:33 AM
To: vtkusers at vtk.org
Subject: Re: [vtkusers] How to use vtkMath functions in ActiViz.NET for 
data of type double?   
Hello, Mark, I'm sorry I have to trouble you again. When I build mummy 
which
downloaded from you github according to wiki suggestions with vs 2008, it
will call other app to open cxx files, such as
C:\VTK\mummy-build\Examples\Vehicles\wrappers\csharpmummy\xml\VehicleDescrip
tor_gccxml.cxx.
I don't know what I need to do. If I do nothing, compilation will not
continue. I tried to close the cxx file, it will generate an error:

Generating xml/VehicleDescriptor.xml
m_GCCXML_COMPILER:
C:/VTK/mummy-build/Examples/Vehicles/wrappers/csharpmummy/xml/VehicleDescrip
tor_gccxml.cxx
compilerName: vehicledescriptor_gccxml.cxx
compilerID: ERROR_unsupported_compiler_in_gxConfiguration_GetCompilerId
Compiler
"C:/VTK/mummy-build/Examples/Vehicles/wrappers/csharpmummy/xml/VehicleDescri
ptor_gccxml.cxx"
is not supported by GCC_XML.
(gxConfiguration::FindFlags)
Could not determine GCCXML_FLAGS setting.

What should I do?

--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
_______________________________________________
Powered by www.kitware.com

Visit other Kitware open-source projects at 
http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at: 
http://www.vtk.org/Wiki/VTK_FAQ

Search the list archives at: http://markmail.org/search/?q=vtkusers

Follow this link to subscribe/unsubscribe:
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From mikhail.pukhlikov at outlook.com  Mon Nov 13 03:04:42 2017
From: mikhail.pukhlikov at outlook.com (Mikhail Pukhlikov)
Date: Mon, 13 Nov 2017 08:04:42 +0000
Subject: [vtkusers] vtkRenderWindow: SetMultiSamples(8) doesn't work
Message-ID: <PS1PR04MB10980F74EDA8D7D915507947E02B0@PS1PR04MB1098.apcprd04.prod.outlook.com>

There is no difference with renderWindow->SetMultiSamples(0) or
renderWindow->SetMultiSamples(8) for me.

I've tested on different versions but seems like it's always the same,
what am possibly doing wrong? (in current MITK (they use VTK renderer
with same option) it doesn't work too for me).
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From kor1581 at gmail.com  Mon Nov 13 04:14:27 2017
From: kor1581 at gmail.com (K O ranjith)
Date: Mon, 13 Nov 2017 14:44:27 +0530
Subject: [vtkusers] vtk zoom indicator
In-Reply-To: <CAEcL5t6x-_cyJAEL7cLQ7uMbm50GDWFAVr2bN7nRy-=BecL=uw@mail.gmail.com>
References: <CANuVs=LLJwQCtkk1bCA=C532+zOc9UUNw8ned0se_vVqQ-+4bA@mail.gmail.com>
 <CAEcL5t4cFBB0c_74tsoFxtPyriwx6F2NVCsTwtdV7n7EwcvZ5w@mail.gmail.com>
 <CANuVs=+X6yqtTTU4LAK=F8QkqDE9Rjodh5FutWLJ9tNngVJaRQ@mail.gmail.com>
 <CAEcL5t6x-_cyJAEL7cLQ7uMbm50GDWFAVr2bN7nRy-=BecL=uw@mail.gmail.com>
Message-ID: <CANuVs=+BgjfvBR_OsXO9AQ_A9qPpRgyG5AanXyAiw3T_yfbP2w@mail.gmail.com>

Hello,

Thanks for the tips it helped me.I would like to know if the length of axes
of the legendactor can be modified.I used the corneroffsetfactor value to
change it.Can it be changed using any other means.

Thanks in Advance

On Tue, Nov 7, 2017 at 9:37 PM, Sankhesh Jhaveri <
sankhesh.jhaveri at kitware.com> wrote:

> There?s no direct API but you can calculate it. All you have to do is
> compute the length of the axis in world coordinates.
>
> Something like this:
>
> double * leftPoint = axis->GetPositionCoordinate()->GetComputedWorldValue(renderer);double * rightPoint = axis->GetPosition2Coordinate()->GetComputedWorldValue(renderer);double distance = vtkMath::sqrt(vtkMath::Distance2BetweenPoints(leftPoint, rightPoint));// Scale is 1 : distance
>
> Hope that helps.
>
> Best,
> Sankhesh
> ?
>
> On Tue, Nov 7, 2017 at 4:30 AM K O ranjith <kor1581 at gmail.com> wrote:
>
>> Hello,
>> Thanks, it's  working.
>> Can I get the measured value (which is displayed as label axis) from
>> vtkLegendScaleActor object.
>>
>> Ranjith KO
>>
>> On Fri, Jun 23, 2017 at 7:52 PM, Sankhesh Jhaveri <
>> sankhesh.jhaveri at kitware.com> wrote:
>>
>>> Take a look at vtkLegendScaleActor
>>> <http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/LegendScaleActor>.
>>> It uses vtkAxisActor
>>> <http://www.vtk.org/doc/nightly/html/classvtkAxisActor.html> internally.
>>>
>>> Hth,
>>> Sankhesh
>>> ?
>>>
>>> On Fri, Jun 23, 2017 at 1:55 AM K O ranjith <kor1581 at gmail.com> wrote:
>>>
>>>> I'm using vtk for developing a MRI DICOM Image viewer in Qt.
>>>> The viewer uses vtkDICOMImageReader,  vtkImageViewer2 & QVTKWidget.
>>>> I need to show a zoom indicator line which varies length with zoom
>>>> value and need not affect other operation like rotate, pan( which is used
>>>> for DICOM image in same window). It's position should be fixed at side of
>>>> viewer and should not alter with zoom, pan, rotate.
>>>> I added an line as an vtkactor  to the renderer using vtkLineSource.
>>>>  Its length altering  with zoom as I intended, but problem is its
>>>> position also altering with the zoom, also rotate and Pan affecting on it.
>>>> How can I make the position of the line fixed at side of the viewer.
>>>> Have any option in vtk for visual indication of zoom factor something
>>>> like vtkOrientationMarkerWidget for orientation...
>>>>
>>>>
>>>> _______________________________________________
>>>> Powered by www.kitware.com
>>>>
>>>> Visit other Kitware open-source projects at http://www.kitware.com/
>>>> opensource/opensource.html
>>>>
>>>> Please keep messages on-topic and check the VTK FAQ at:
>>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>>
>>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>>
>>>> Follow this link to subscribe/unsubscribe:
>>>> http://public.kitware.com/mailman/listinfo/vtkusers
>>>>
>>> --
>>> Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
>>> <http://www.kitware.com/> | (518) 881-4417
>>> ?
>>>
>>
>> --
> Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
> <http://www.kitware.com/> | (518) 881-4417
> ?
>
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From elhassan.abdou at gmail.com  Mon Nov 13 04:21:02 2017
From: elhassan.abdou at gmail.com (Elhassan Abdou)
Date: Mon, 13 Nov 2017 10:21:02 +0100
Subject: [vtkusers] WIndows 10 OpenGL
Message-ID: <CAK-92qAz2FEgB39UD0wkXz+E=tWR7Dp+FJbKSF3n3Rmh6J=fpA@mail.gmail.com>

Hi All

>From what I read that windows 10 supports OpenGL using OpenGLES, I think
using ANGLE.

I built VTK using WIN32 and _windows and opengl32 library. How VTK can be
built on Window10?

Regards
Elhassan
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From landinghere at 163.com  Mon Nov 13 08:08:45 2017
From: landinghere at 163.com (landings)
Date: Mon, 13 Nov 2017 06:08:45 -0700 (MST)
Subject: [vtkusers] What happens if the indices of points are random?
Message-ID: <1510578525316-0.post@n5.nabble.com>

I have a few thousand points whose indices are quite random. They start from
a few thousand to tens of thousand.

I can't fix this easily because my cells are referencing them.

I would like to know what will happen:

- If the indices are random, is it OK for all buit-in filters, or some of
them?

- If I apply some filters that change the number of points, for example,
extracting the surface of a solid mesh,  are the new surface mesh's indices
starting from 0 and continuous, or it depends?



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From tim.hutton at gmail.com  Mon Nov 13 08:32:46 2017
From: tim.hutton at gmail.com (Tim Hutton)
Date: Mon, 13 Nov 2017 13:32:46 +0000
Subject: [vtkusers] vtkLandmarkTransform
In-Reply-To: <1510464283661-0.post@n5.nabble.com>
References: <1510464283661-0.post@n5.nabble.com>
Message-ID: <CAAcZTPS-gm7Xwgjvmdm5HJoGayVgQ5TBWw5ngznxXHo45vWJrw@mail.gmail.com>

For translation only, you can just translate to match the centroids of the
two point sets. I don't think there's a way of doing this in a VTK pipeline
at the moment so you'd need to do it manually. We might usefully add such a
mode to vtkLandmarkTransform.

Tim

On 12 November 2017 at 05:24, hlukeh <hlukeh at hotmail.com> wrote:

> I'm trying to find the best fit of a circular set of landmarks lying almost
> on a plane to a point cloud. I'm currently using a vtkLandmarkTransform
> with
> the mode set to Rigid Body. This does a good job of matching the two sets
> of
> data, but sometimes the best fit is found with a rotation and translation
> when I only want a translation (even if the fit isn't quite as good).
>
> I see three modes in the landmark transform, Rigid Body, Similarity and
> Affine, but all of those include rotation and translation (and scaling for
> Similarity).
>
> Does anyone know what transform could be used to match a set of landmarks
> to
> a set of points but limiting the method to translation only?
>
> Thank you,
>
> Luke
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



-- 
Tim Hutton - http://www.sq3.org.uk - http://profiles.google.com/tim.hutton/ -
https://github.com/timhutton
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From ken.martin at kitware.com  Mon Nov 13 09:51:55 2017
From: ken.martin at kitware.com (Ken Martin)
Date: Mon, 13 Nov 2017 09:51:55 -0500
Subject: [vtkusers] vtkRenderWindow: SetMultiSamples(8) doesn't work
In-Reply-To: <PS1PR04MB10980F74EDA8D7D915507947E02B0@PS1PR04MB1098.apcprd04.prod.outlook.com>
References: <PS1PR04MB10980F74EDA8D7D915507947E02B0@PS1PR04MB1098.apcprd04.prod.outlook.com>
Message-ID: <CANXz0SZbDGJyu6WWrTNdf_3UWxJt8Xy71wxmo4Ut415JaUS9_A@mail.gmail.com>

Make sure you set it before your first render, it is used when creating the
hardware window.

On Mon, Nov 13, 2017 at 3:04 AM, Mikhail Pukhlikov <
mikhail.pukhlikov at outlook.com> wrote:

> There is no difference with renderWindow->SetMultiSamples(0) or
> renderWindow->SetMultiSamples(8) for me.
>
> I've tested on different versions but seems like it's always the same,
> what am possibly doing wrong? (in current MITK (they use VTK renderer
> with same option) it doesn't work too for me).
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>


-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
not the intended recipient, any disclosure, copying, distribution or any
action taken in reliance on it is prohibited and may be unlawful. If you
received this communication in error please notify us immediately and
destroy the original message.  Thank you.
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From kwerner at rhrk.uni-kl.de  Mon Nov 13 10:25:42 2017
From: kwerner at rhrk.uni-kl.de (Kilian Werner)
Date: Mon, 13 Nov 2017 16:25:42 +0100
Subject: [vtkusers] vtkDistributedDataFilter::SingleProcessExecute()
Message-ID: <web-164626176@uni-kl.de>

Dear list,

for a distributed contour tree computation I am currently 
trying to split vtk data among mutliple nodes (that do not 
have shared memory).
I am reading data from a file with a 
vtkXMLUnstructuredGridReader, there are no 
overlappings/ghost cells in the data at this point.
The result should be a vtkUnstructuredGrid of one 
spatially contiguous part of the data per node including 
one layer of ghost cells.

While vtkDistributedDataFilter seems to be doing just what 
I want, I do not use MPI for communication between nodes, 
but a task-parallel framework (called HPX).
Because of the task parallel nature, I explicitly do not 
want the data splitting to require messages between nodes.
Therefore the usual usage of vtkDistributedDataFilter with 
setController and implicit call of execute() through 
pipeline demands is not suitable for me.

There is however word of  "an explicit execution mode" in 
the documentation 
https://www.vtk.org/doc/nightly/html/classvtkDistributedDataFilter.html 
and I somewhat suspect that this involves a direct call to 
SingleProcessExecute();

With this however I have two(three) questions:

0.) Are my assumptions about SingleProcessExecute() and 
"an explicit execution mode" correct? Is there a way to 
perform data segmentation with vtkDistributedDataFilter 
"offline" as in not using the communication controller and 
not sending any mpi messages?

1.) If this offline segmentation is possible, how do I let 
vtkDistributedDataFilter know how many segments should be 
created and which one of them should be outputted? I do 
have that information per node even without using MPI, but 
where do I put the numbers, now that there is no 
communication controller?

2.) How do I request Ghost Cells, when not using the 
typical downstream pipeline demands? I assume that 
SingleProcessExecute() will not wait for any update() of 
any pipeline but start immediately, how to assure it 
creates ghost cells at that moment?
Is it enough to extend vtkDistributedDataFilter with a 
custom class that overrides RequestData() and increases 
the ghost cells info? Or will this info be ignored by 
SingleProcessExecute() since it does not generate Output 
in the pipeline sense?

Thank you in advance for your time,

Kilian Werner

P.S.: Maybe I could achieve the same results with an 
vtkOBBDicer + vtkThresholdFilter but how would I make the 
ThresholdFilter output ghost cells in this scenario?

From sankhesh.jhaveri at kitware.com  Mon Nov 13 11:54:08 2017
From: sankhesh.jhaveri at kitware.com (Sankhesh Jhaveri)
Date: Mon, 13 Nov 2017 16:54:08 +0000
Subject: [vtkusers] vtk zoom indicator
In-Reply-To: <CANuVs=+BgjfvBR_OsXO9AQ_A9qPpRgyG5AanXyAiw3T_yfbP2w@mail.gmail.com>
References: <CANuVs=LLJwQCtkk1bCA=C532+zOc9UUNw8ned0se_vVqQ-+4bA@mail.gmail.com>
 <CAEcL5t4cFBB0c_74tsoFxtPyriwx6F2NVCsTwtdV7n7EwcvZ5w@mail.gmail.com>
 <CANuVs=+X6yqtTTU4LAK=F8QkqDE9Rjodh5FutWLJ9tNngVJaRQ@mail.gmail.com>
 <CAEcL5t6x-_cyJAEL7cLQ7uMbm50GDWFAVr2bN7nRy-=BecL=uw@mail.gmail.com>
 <CANuVs=+BgjfvBR_OsXO9AQ_A9qPpRgyG5AanXyAiw3T_yfbP2w@mail.gmail.com>
Message-ID: <CAEcL5t6FsutwREN1nwPVqoGCe+32QDdo5gb8EiE+Ec0FfOh5qA@mail.gmail.com>

I don?t think so. You could directly use the vtkAxisActor API instead of
using vtkLegendScaleActor to set the position coordinates of the two
endpoints.
?

On Mon, Nov 13, 2017 at 4:14 AM K O ranjith <kor1581 at gmail.com> wrote:

> Hello,
>
> Thanks for the tips it helped me.I would like to know if the length of axes
> of the legendactor can be modified.I used the corneroffsetfactor value to
> change it.Can it be changed using any other means.
>
> Thanks in Advance
>
> On Tue, Nov 7, 2017 at 9:37 PM, Sankhesh Jhaveri <
> sankhesh.jhaveri at kitware.com> wrote:
>
>> There?s no direct API but you can calculate it. All you have to do is
>> compute the length of the axis in world coordinates.
>>
>> Something like this:
>>
>> double * leftPoint = axis->GetPositionCoordinate()->GetComputedWorldValue(renderer);double * rightPoint = axis->GetPosition2Coordinate()->GetComputedWorldValue(renderer);double distance = vtkMath::sqrt(vtkMath::Distance2BetweenPoints(leftPoint, rightPoint));// Scale is 1 : distance
>>
>> Hope that helps.
>>
>> Best,
>> Sankhesh
>> ?
>>
>> On Tue, Nov 7, 2017 at 4:30 AM K O ranjith <kor1581 at gmail.com> wrote:
>>
>>> Hello,
>>> Thanks, it's  working.
>>> Can I get the measured value (which is displayed as label axis) from
>>> vtkLegendScaleActor object.
>>>
>>> Ranjith KO
>>>
>>> On Fri, Jun 23, 2017 at 7:52 PM, Sankhesh Jhaveri <
>>> sankhesh.jhaveri at kitware.com> wrote:
>>>
>>>> Take a look at vtkLegendScaleActor
>>>> <http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/LegendScaleActor>.
>>>> It uses vtkAxisActor
>>>> <http://www.vtk.org/doc/nightly/html/classvtkAxisActor.html>
>>>> internally.
>>>>
>>>> Hth,
>>>> Sankhesh
>>>> ?
>>>>
>>>> On Fri, Jun 23, 2017 at 1:55 AM K O ranjith <kor1581 at gmail.com> wrote:
>>>>
>>>>> I'm using vtk for developing a MRI DICOM Image viewer in Qt.
>>>>> The viewer uses vtkDICOMImageReader,  vtkImageViewer2 & QVTKWidget.
>>>>> I need to show a zoom indicator line which varies length with zoom
>>>>> value and need not affect other operation like rotate, pan( which is used
>>>>> for DICOM image in same window). It's position should be fixed at side of
>>>>> viewer and should not alter with zoom, pan, rotate.
>>>>> I added an line as an vtkactor  to the renderer using vtkLineSource.
>>>>>  Its length altering  with zoom as I intended, but problem is its
>>>>> position also altering with the zoom, also rotate and Pan affecting on it.
>>>>> How can I make the position of the line fixed at side of the viewer.
>>>>> Have any option in vtk for visual indication of zoom factor something
>>>>> like vtkOrientationMarkerWidget for orientation...
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Powered by www.kitware.com
>>>>>
>>>>> Visit other Kitware open-source projects at
>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>
>>>>> Please keep messages on-topic and check the VTK FAQ at:
>>>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>>>
>>>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>>>
>>>>> Follow this link to subscribe/unsubscribe:
>>>>> http://public.kitware.com/mailman/listinfo/vtkusers
>>>>>
>>>> --
>>>> Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
>>>> <http://www.kitware.com/> | (518) 881-4417
>>>> ?
>>>>
>>>
>>> --
>> Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
>> <http://www.kitware.com/> | (518) 881-4417
>> ?
>>
>
> --
Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
<http://www.kitware.com/> | (518) 881-4417
?
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From csumushu at 126.com  Mon Nov 13 12:23:07 2017
From: csumushu at 126.com (csumushu)
Date: Mon, 13 Nov 2017 10:23:07 -0700 (MST)
Subject: [vtkusers] How to use vtkMath functions in ActiViz.NET for data
 of type double?
In-Reply-To: <dbc1c7731baa4458a68df40192ac6862@cascadeacoustic.com>
References: <1510190569720-0.post@n5.nabble.com>
 <c46f77051f394215b91d17837cd3ab0b@cascadeacoustic.com>
 <1510362383246-0.post@n5.nabble.com>
 <705a11bc43ce459bab8c97fc057ddfbc@cascadeacoustic.com>
 <1510479185751-0.post@n5.nabble.com>
 <dbc1c7731baa4458a68df40192ac6862@cascadeacoustic.com>
Message-ID: <1510593787448-0.post@n5.nabble.com>

I also used the gccxml binaries you provided? and it turned out to be the
same. I'll follow your advice and continue building ActiViz when I have more
free time.
In addition to this, I have one more important and strange thing to ask you.
I created  a simple ActiViz project on my computer with Activiz.NET-7.1.1
which built by you, and it worked very well.  But when I copy the whole
project to my colleague's computer, it doesn't work. I am sure all dlls are
included. When I start dubugging, it will pop up this window.
<http://vtk.1045678.n5.nabble.com/file/t342235/%E9%97%AE%E9%A2%981.png> 
If I click cancel button, it will throw an exception.
<http://vtk.1045678.n5.nabble.com/file/t342235/%E9%97%AE%E9%A2%982.png> 
Look forward to your reply.





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From simakov.w at gmail.com  Mon Nov 13 12:55:58 2017
From: simakov.w at gmail.com (Met@ll)
Date: Mon, 13 Nov 2017 10:55:58 -0700 (MST)
Subject: [vtkusers]
	=?utf-8?q?=E2=80=8B_Rotate_the_vector_along_the_X=2C_Y?=
	=?utf-8?b?LCBaIGF4ZXMu?=
In-Reply-To: <CAJk8dSAdioQSmZysRmezaVbK-CKaWUwha6jS=3yja88_OtSEjA@mail.gmail.com>
References: <CAHDsG9N8CofxFoN0Gsw2T8aqUd2sbUuwtbwSNNx5ijM90bOs5w@mail.gmail.com>
 <CAHDsG9N7Xhqie3LbOqqB0NEucTShRTsh_j20zjQ6S++zWsD42w@mail.gmail.com>
 <1510079819282-0.post@n5.nabble.com>
 <CAJk8dSAdioQSmZysRmezaVbK-CKaWUwha6jS=3yja88_OtSEjA@mail.gmail.com>
Message-ID: <1510595758437-0.post@n5.nabble.com>

Thanks for the help!
And how do I apply this matrix then?



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From mark at cascadeacoustic.com  Mon Nov 13 15:02:24 2017
From: mark at cascadeacoustic.com (Mark DeArman)
Date: Mon, 13 Nov 2017 14:02:24 -0600
Subject: [vtkusers] How to use vtkMath functions in ActiViz.NET for data
	of type double?
In-Reply-To: <1510593787448-0.post@n5.nabble.com>
References: <1510190569720-0.post@n5.nabble.com>
 <c46f77051f394215b91d17837cd3ab0b@cascadeacoustic.com>
 <1510362383246-0.post@n5.nabble.com>
 <705a11bc43ce459bab8c97fc057ddfbc@cascadeacoustic.com>
 <1510479185751-0.post@n5.nabble.com>
 <dbc1c7731baa4458a68df40192ac6862@cascadeacoustic.com>
 <1510593787448-0.post@n5.nabble.com>
Message-ID: <93a8c288b7bc41a1a242948fe160d779@cascadeacoustic.com>

You need to make sure to include any of the required redistributable libraries when you deploy off of your development machine.  For Activiz, I believe I have included them all in the binary package, although they might not all be moved automatically to the output directory.  You also need to take care of any redist requirements for your build environment.  You'll want to use the depends utility to evaluate what the requirements are, or build an installer with a tool that can help you figure it out.
  
   Mark DeArman
 Cascade Acoustic Research
 http://www.cascadeacoustic.com
 (253) 200-5353

  

----------------------------------------
 From: "csumushu" <csumushu at 126.com>
Sent: Monday, November 13, 2017 9:23 AM
To: vtkusers at vtk.org
Subject: Re: [vtkusers] How to use vtkMath functions in ActiViz.NET for data of type double?   
I also used the gccxml binaries you provided, and it turned out to be the same. I'll follow your advice and continue building ActiViz when I have more free time. In addition to this, I have one more important and strange thing to ask you. I created a simple ActiViz project on my computer with Activiz.NET-7.1.1 which built by you, and it worked very well. But when I copy the whole project to my colleague's computer, it doesn't work. I am sure all dlls are included. When I start dubugging, it will pop up this window. <http://vtk.1045678.n5.nabble.com/file/t342235/%E9%97%AE%E9%A2%981.png> If I click cancel button, it will throw an exception. <http://vtk.1045678.n5.nabble.com/file/t342235/%E9%97%AE%E9%A2%982.png> Look forward to your reply. -- Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ Search the list archives at: http://markmail.org/search/?q=vtkusers Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/vtkusers

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From petersenkolja at gmail.com  Mon Nov 13 15:21:15 2017
From: petersenkolja at gmail.com (Kolja Petersen)
Date: Mon, 13 Nov 2017 21:21:15 +0100
Subject: [vtkusers] TimerEvents not fired while dragging mouse in
	vtkRenderWindow
Message-ID: <CAPN39MW_VyemRzzxcPwupsjhA-40OioScee2Qnm6rg-+RzXW1Q@mail.gmail.com>

Heya,
I paste some code below, which displays an empty vtkRenderWindow with an
interactor. The interactor fires a TimerEvent every 100ms as printed by the
Observer.
The problem: as long as I press a mouse button in the vtkRenderWindow, the
TimerEvents stop to be reported, although I need to process data
periodically in my application as a reaction to those TimerEvents.

Why are no TimerEvents fired while a button is pressed, and how can I
change this behaviour?
Thank you
Kolja

import vtk

class Observer(object):
  def __init__(self):
    self.cnt=0
  def __call__(self,caller,evt):
    self.cnt+=1
    print "count %d %s" % (self.cnt,evt)

ren1 = vtk.vtkRenderer()
ren1.SetBackground(0.1, 0.2, 0.4)

renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren1)
renWin.SetSize(300, 300)

iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)

style = vtk.vtkInteractorStyleTrackballCamera()
iren.SetInteractorStyle(style)

iren.Initialize()
observer=Observer()
iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)
iren.AddObserver(vtk.vtkCommand.MouseMoveEvent,observer)
iren.AddObserver(vtk.vtkCommand.InteractionEvent,observer)
iren.CreateRepeatingTimer(100)
iren.Start()

<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
Virenfrei.
www.avast.com
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
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From utkarsh.ayachit at kitware.com  Mon Nov 13 19:12:58 2017
From: utkarsh.ayachit at kitware.com (Utkarsh Ayachit)
Date: Mon, 13 Nov 2017 19:12:58 -0500
Subject: [vtkusers] Supercomputing 2017: Schedule for talks at the Kitware
	Booth
Message-ID: <CADHSJjDQSqDQOHBoALssHG8tY=5kRBeVXoObRxipwbogE_X8rw@mail.gmail.com>

Folks,

If you are attending Supercomputing 2017
(https://sc17.supercomputing.org/), please stop by the Kitware Booth
#647 and say hello! It's always great to meet community members. Also,
we are hosting short talks throughout the day Tue & Wed (schedule
attached).

See you there!

Utkarsh
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From aralol2015 at gmail.com  Tue Nov 14 00:32:14 2017
From: aralol2015 at gmail.com (Duster)
Date: Mon, 13 Nov 2017 22:32:14 -0700 (MST)
Subject: [vtkusers] ruler in dicom
Message-ID: <1510637534790-0.post@n5.nabble.com>

Hello,

I am trying to create a ruler for an image that changes along with the zoom
event of the interactorstyle.
I tried using the vtkLegendScaleActor.What i am trying to achieve is marked
in the pictures below. Could anyone please provide some ideas on how this
can be accomplished? 

Thanks in Advance


<http://vtk.1045678.n5.nabble.com/file/t342185/ruler.png> 
<http://vtk.1045678.n5.nabble.com/file/t342185/ruler_1.png> 



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From csumushu at 126.com  Tue Nov 14 00:37:42 2017
From: csumushu at 126.com (csumushu)
Date: Mon, 13 Nov 2017 22:37:42 -0700 (MST)
Subject: [vtkusers] How to use vtkMath functions in ActiViz.NET for data
 of type double?
In-Reply-To: <93a8c288b7bc41a1a242948fe160d779@cascadeacoustic.com>
References: <1510190569720-0.post@n5.nabble.com>
 <c46f77051f394215b91d17837cd3ab0b@cascadeacoustic.com>
 <1510362383246-0.post@n5.nabble.com>
 <705a11bc43ce459bab8c97fc057ddfbc@cascadeacoustic.com>
 <1510479185751-0.post@n5.nabble.com>
 <dbc1c7731baa4458a68df40192ac6862@cascadeacoustic.com>
 <1510593787448-0.post@n5.nabble.com>
 <93a8c288b7bc41a1a242948fe160d779@cascadeacoustic.com>
Message-ID: <1510637862636-0.post@n5.nabble.com>

I am sure all of the VTK libraries are included. I also tried to build the
project on a new virtual machine and the result is the same. I'm sure your
library has no problems, otherwise it will not work well on my computer. I
think it is caused by the different operating system environment. 
The picture below has more details.

<http://vtk.1045678.n5.nabble.com/file/t342235/%E6%8D%95%E8%8E%B72.png> 

Thank you for your help. If I find out the reason, I'll tell you.




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From marcin.krotkiewski at gmail.com  Tue Nov 14 04:43:31 2017
From: marcin.krotkiewski at gmail.com (marcin.krotkiewski)
Date: Tue, 14 Nov 2017 10:43:31 +0100
Subject: [vtkusers] Performance issue with 8.1.0rc1
Message-ID: <d9960d82-f0a8-6e1a-32b0-26eb389b3a20@gmail.com>

Hello,

I compiled VTK8.1.0rc1 with GCC + OpenMP and tested it in my Java-based 
application. The behavior is different compared to 8.0.1: when I 
manipulate (rotate/move) my model, all CPU cores are 100% active (used 
to be only 1), and the performance is very sluggish. Rotation staggers 
and is not smooth, even if I only render the axis actor. On the other 
hand, compiling without OpenMP support (Sequential) works as it used to.

Does anyone have ideas?

Thanks!

Marcin


From Wiggerl at Linhuber.info  Tue Nov 14 05:34:43 2017
From: Wiggerl at Linhuber.info (Willy)
Date: Tue, 14 Nov 2017 03:34:43 -0700 (MST)
Subject: [vtkusers] Black cross section between volume and near clipping
	plane?
In-Reply-To: <CAEw35Z88i+yFMKQFo-TvXMCEfeBCtoubgRun2UHZzvyTGw+aFA@mail.gmail.com>
References: <1510156873693-0.post@n5.nabble.com>
 <CAEw35Z88i+yFMKQFo-TvXMCEfeBCtoubgRun2UHZzvyTGw+aFA@mail.gmail.com>
Message-ID: <1510655683612-0.post@n5.nabble.com>

It took a few days, but i changed to VS 2017. With vtk 8.1.0 everything
works.

Thanks
Ludwig



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From ich_daniel at habmalnefrage.de  Tue Nov 14 08:09:28 2017
From: ich_daniel at habmalnefrage.de (-Daniel-)
Date: Tue, 14 Nov 2017 06:09:28 -0700 (MST)
Subject: [vtkusers] vtkbioeng for vtk7.1.1 ?
Message-ID: <1510664968533-0.post@n5.nabble.com>

Hi there,

I would like to use vtkbioeng with vtk7.1.1, but apparently this is no
longer supported. Only up to version 6? Or is there already a solution for
that?
I'm particularly interested in collision detection.

Every hint is welcome!



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From aashish.chaudhary at kitware.com  Tue Nov 14 10:08:38 2017
From: aashish.chaudhary at kitware.com (Aashish Chaudhary)
Date: Tue, 14 Nov 2017 15:08:38 +0000
Subject: [vtkusers] Black cross section between volume and near clipping
	plane?
In-Reply-To: <1510655683612-0.post@n5.nabble.com>
References: <1510156873693-0.post@n5.nabble.com>
 <CAEw35Z88i+yFMKQFo-TvXMCEfeBCtoubgRun2UHZzvyTGw+aFA@mail.gmail.com>
 <1510655683612-0.post@n5.nabble.com>
Message-ID: <CAEw35Z96dHPG9gw_hHdj7sX08zBUYVJG+Szhrorr=RgxKfajuQ@mail.gmail.com>

Thanks for the update. I am glad things are working now.

- Aashish

On Tue, Nov 14, 2017 at 5:34 AM Willy <Wiggerl at linhuber.info> wrote:

> It took a few days, but i changed to VS 2017. With vtk 8.1.0 everything
> works.
>
> Thanks
> Ludwig
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
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From lasso at queensu.ca  Tue Nov 14 11:00:04 2017
From: lasso at queensu.ca (Andras Lasso)
Date: Tue, 14 Nov 2017 16:00:04 +0000
Subject: [vtkusers] ruler in dicom
In-Reply-To: <1510637534790-0.post@n5.nabble.com>
References: <1510637534790-0.post@n5.nabble.com>
Message-ID: <BY2PR0701MB19410786A368C9B539456ECED8280@BY2PR0701MB1941.namprd07.prod.outlook.com>

You can have a look at how it is implemented in 3D Slicer.

Screenshot:
https://www.dropbox.com/s/3dzhrkq80gsbvdx/SlicerRulerScreenshot.png?dl=0

Source code:
https://github.com/Slicer/Slicer/blob/master/Libs/MRML/DisplayableManager/vtkMRMLRulerDisplayableManager.cxx

Andras

-----Original Message-----
From: vtkusers [mailto:vtkusers-bounces at vtk.org] On Behalf Of Duster
Sent: Tuesday, November 14, 2017 12:32 AM
To: vtkusers at vtk.org
Subject: [vtkusers] ruler in dicom

Hello,

I am trying to create a ruler for an image that changes along with the zoom event of the interactorstyle.
I tried using the vtkLegendScaleActor.What i am trying to achieve is marked in the pictures below. Could anyone please provide some ideas on how this can be accomplished? 

Thanks in Advance


<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fvtk.1045678.n5.nabble.com%2Ffile%2Ft342185%2Fruler.png&data=02%7C01%7Classo%40queensu.ca%7Cfa1628c0d5b64d7de03308d52b2117bb%7Cd61ecb3b38b142d582c4efb2838b925c%7C1%7C0%7C636462343484739675&sdata=XGkhiykQbudyGH3SIQb7rMM193SZwAZtlRlr0CeGcPo%3D&reserved=0>
<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fvtk.1045678.n5.nabble.com%2Ffile%2Ft342185%2Fruler_1.png&data=02%7C01%7Classo%40queensu.ca%7Cfa1628c0d5b64d7de03308d52b2117bb%7Cd61ecb3b38b142d582c4efb2838b925c%7C1%7C0%7C636462343484739675&sdata=lGZe5f89KX5GEQJq3%2BsJ05QHJBJQplgT6jmjZ42nYCM%3D&reserved=0> 



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From ken.martin at kitware.com  Tue Nov 14 11:53:15 2017
From: ken.martin at kitware.com (Ken Martin)
Date: Tue, 14 Nov 2017 11:53:15 -0500
Subject: [vtkusers] TimerEvents not fired while dragging mouse in
	vtkRenderWindow
In-Reply-To: <CAPN39MW_VyemRzzxcPwupsjhA-40OioScee2Qnm6rg-+RzXW1Q@mail.gmail.com>
References: <CAPN39MW_VyemRzzxcPwupsjhA-40OioScee2Qnm6rg-+RzXW1Q@mail.gmail.com>
Message-ID: <CANXz0SYk6foMnmEOaDjd0NGX=BbsTxZ++xkO7mPe2NbUc7iCZg@mail.gmail.com>

I suspect timer events are fired but something else is consuming them.
Probably in the interactor style. Try adding your timer events with a
higher priority like 10.0 (third argument).

On Mon, Nov 13, 2017 at 3:21 PM, Kolja Petersen <petersenkolja at gmail.com>
wrote:

> Heya,
> I paste some code below, which displays an empty vtkRenderWindow with an
> interactor. The interactor fires a TimerEvent every 100ms as printed by the
> Observer.
> The problem: as long as I press a mouse button in the vtkRenderWindow, the
> TimerEvents stop to be reported, although I need to process data
> periodically in my application as a reaction to those TimerEvents.
>
> Why are no TimerEvents fired while a button is pressed, and how can I
> change this behaviour?
> Thank you
> Kolja
>
> import vtk
>
> class Observer(object):
>   def __init__(self):
>     self.cnt=0
>   def __call__(self,caller,evt):
>     self.cnt+=1
>     print "count %d %s" % (self.cnt,evt)
>
> ren1 = vtk.vtkRenderer()
> ren1.SetBackground(0.1, 0.2, 0.4)
>
> renWin = vtk.vtkRenderWindow()
> renWin.AddRenderer(ren1)
> renWin.SetSize(300, 300)
>
> iren = vtk.vtkRenderWindowInteractor()
> iren.SetRenderWindow(renWin)
>
> style = vtk.vtkInteractorStyleTrackballCamera()
> iren.SetInteractorStyle(style)
>
> iren.Initialize()
> observer=Observer()
> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)
> iren.AddObserver(vtk.vtkCommand.MouseMoveEvent,observer)
> iren.AddObserver(vtk.vtkCommand.InteractionEvent,observer)
> iren.CreateRepeatingTimer(100)
> iren.Start()
>
>
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virenfrei.
> www.avast.com
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
> <#m_5020402281578617109_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>


-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
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From stephen.langer at nist.gov  Tue Nov 14 14:05:44 2017
From: stephen.langer at nist.gov (Langer, Stephen A. (Fed))
Date: Tue, 14 Nov 2017 19:05:44 +0000
Subject: [vtkusers] vtk and gtk on macOS
In-Reply-To: <5D8DE910-425D-4547-BEB3-81A2F2949F9A@nist.gov>
References: <49FDD20F-0AFF-4475-B314-20C78E20EEA9@nist.gov>
 <CANwS1=GTExyqRYVi6ZwvqgKnUFdibsSWPYkJoNV1uH0G7SBWHA@mail.gmail.com>
 <5D8DE910-425D-4547-BEB3-81A2F2949F9A@nist.gov>
Message-ID: <3CDBE37E-520E-46EB-BA69-30F177FC71EF@nist.gov>

Just in case someone else is trying to do the same thing and finds this message, the configure callback below is incorrect because gtk and vtk have different ideas about which direction is up.  The call to render_window->SetPosition should be
  GtkWidget *top = gtk_widget_get_toplevel(drawing_area)
 render_window->SetPosition(top->allocation.height- event->y - event->height);

event->y and drawing_area->allocation.y are interchangeable.

-- Steve

From: vtkusers <vtkusers-bounces at vtk.org> on behalf of "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
Date: Friday, November 3, 2017 at 10:11 AM
To: David Gobbi <david.gobbi at gmail.com>
Cc: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] vtk and gtk on macOS


HI David --

Thanks for the suggestions, which got me started on the right track.

What seems to work is this (somewhat simplified to eliminate some infrastructure):

// Create gtk widget and vtk window
GtkWidget *drawing_area = gtk_drawing_area_new();
vtkSmartPointer<vtkCocoaRenderWindow> render_window = vtkSmartPointer<vtkCocoaRenderWindow>::New();
// Connect to gtk signals.
g_signal_connect(drawing_area, "realize", realize_callback, ..)
g_signal_connect(drawing_area, "configure_event", configure_callback, ?)

// in realize_callback
gtk_widget_realize(drawing_area);
render_window->SetRootWindow(gtk_widget_get_root_window(drawing_area));
GdkWindow gparent = gtk_widget_get_parent_window(drawing_area);
NSView *pid = gdk_quartz_window_get_nsview(gparent);
render_window->SetParentId((void*) pid);

// in configure_callback
// event is a GdkEventConfigure* that's passed in as an argument
// Unlike David's  QWidget example, I do not use the superclass versions of SetSize and SetPosition
render_window->SetSize(event->width, event->height);
render_window->SetPosition(drawing_area->allocation.x, drawing_area->allocation.y);

I also added an expose event callback which just called render_window->Render(), but it doesn't seem to be necessary.

-- Steve

From: David Gobbi <david.gobbi at gmail.com>
Date: Tuesday, October 24, 2017 at 2:56 PM
To: "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
Cc: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] vtk and gtk on macOS

Hi Steve,

Here is some code that I use to bind a VTK window to a QWidget.  My guess is that something similar should work with GTK.  I have been using this on OS X with vtkCocoaRenderWindow.

void BindRenderWindow(vtkRenderWindow *window, QWidget *widget)
{
  // Unmap the window if it is already mapped somewhere else.
  if (window->GetMapped()) {
    window->Finalize();
  }
  // Create the connection
  window->SetWindowId(reinterpret_cast<void *>(widget->winId()));
  // Note that we must call the superclass SetSize()/SetPosition()
  // (we just want to set the member variables, with no side-effects)
  window->vtkRenderWindow::SetSize(widget->width(), widget->height());
  window->vtkRenderWindow::SetPosition(widget->x(), widget->y());
  // Prepare for rendering
  if (widget->isVisible()) {
    window->Start();
  }
  // Call SetSize() again, to synchronize the window to the widget
  window->SetSize(widget->width(), widget->height());
}

Some further notes:
1) I disable Qt's paint engine, so that Qt itself doesn't draw in the window.  GTK may be similar.
2) You probably will not need GtkGLExt (for Qt, I didn't have to use QGLWidget).

 - David



On Tue, Oct 24, 2017 at 12:12 PM, Langer, Stephen A. (Fed) <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>> wrote:
Hi --

Is there a simple way to get vtk to work inside a gtk+2 program on macOS?   If there isn't a simple way, is there a difficult one?

I'm trying to get a program that uses gtk+2 and vtk to work with a modern version of vtk -- I'm upgrading from 5.10.1 to 7.1.1 or 8.0.1.    On Linux, the following code creates a vtk render window and a gtk widget containing it:
    vtkRenderWindow *render_win = vtkRenderWindow::New();
    GtkWidget *drawing_area = gtk_drawing_area_new();
    Display *disp = GDK_DISPLAY();
    render_win->SetDisplayId(disp);
followed eventually by
     XID wid = GDK_WINDOW_XID(drawing_area->window);
     render_win->SetWindowId(wid);
after receiving the gtk "realize" signal on the drawing_area.

On macOS, I'd like to use the Cocoa version of gtk+2 and vtkCocoaRenderWindow, but I can't figure out how to embed the render window into a gtk widget.    All the examples I've found on-line aren't really applicable.

GtkGLExt might be applicable, but it doesn't look like it's being maintained.

An alternative would be to use X11, but native Mac OpenGL doesn't understand X11, so I tried installing mesa from macports , rebuilding vtk with VTK_USE_X instead of VTK_USE_COCOA, and linking to /opt/local/lib instead of /System/Library/Frameworks/OpenGL.framework.  Then I can use the same code as on Linux, but vtk complains about the context not supporting OpenGL 3.2, and then crashes:
  ERROR: In /Users/langer/UTIL/VTK/VTK-7.1.1/Rendering/OpenGL2/vtkTextureObject.cxx, line 440
  vtkTextureObject (0x7f9eafdb1690): failed at glGenTextures 1 OpenGL errors detected
    0 : (1280) Invalid enum

Thanks,
     Steve
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From stephen.langer at nist.gov  Tue Nov 14 14:59:19 2017
From: stephen.langer at nist.gov (Langer, Stephen A. (Fed))
Date: Tue, 14 Nov 2017 19:59:19 +0000
Subject: [vtkusers] vtk and gtk on macOS
In-Reply-To: <3CDBE37E-520E-46EB-BA69-30F177FC71EF@nist.gov>
References: <49FDD20F-0AFF-4475-B314-20C78E20EEA9@nist.gov>
 <CANwS1=GTExyqRYVi6ZwvqgKnUFdibsSWPYkJoNV1uH0G7SBWHA@mail.gmail.com>
 <5D8DE910-425D-4547-BEB3-81A2F2949F9A@nist.gov>
 <3CDBE37E-520E-46EB-BA69-30F177FC71EF@nist.gov>
Message-ID: <A0CD0716-BE99-45E8-BC48-618DBC31AA39@nist.gov>

Responding to my own message again?

Is it possible that the vtk or gtk+2 coordinate systems are different on different platforms?
On a Mac, using vtk 7.1.1 and Cocoa, the configure callback for the vtk render window inside a gtk widget looks like this:

gboolean OOFCanvas3D::configure(GdkEventConfigure *event) {
   render_window->SetSize(event->width, event->height);
  GtkWidget *topwindow = gtk_widget_get_toplevel(drawing_area);
  assert(topwindow != nullptr);
  int top_height = topwindow->allocation.height;
  render_window->SetPosition(event->x, top_height - event->y - event->height);
  return true;
}

but that doesn't work on Linux (Ubuntu inside VirtualBox, using vtk 7.1.1 and X11), where it has to be this:

gboolean OOFCanvas3D::configure(GdkEventConfigure *event) {
   render_window->SetSize(event->width, event->height);
  render_window->SetPosition(event->x, event->y);
  return true;
}

Both of these do what they should do (on their respective platforms) when the space allocated for the vtk render window is changed.  But it looks like on the Mac the position of the vtk widget is measured from the bottom of the enclosing window while on Linux it's measured from the top!  Can this be true?  What am I missing?

Thanks.

-- Steve


From: vtkusers <vtkusers-bounces at vtk.org> on behalf of "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
Date: Tuesday, November 14, 2017 at 2:06 PM
To: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] vtk and gtk on macOS

Just in case someone else is trying to do the same thing and finds this message, the configure callback below is incorrect because gtk and vtk have different ideas about which direction is up.  The call to render_window->SetPosition should be
  GtkWidget *top = gtk_widget_get_toplevel(drawing_area)
 render_window->SetPosition(top->allocation.height- event->y - event->height);

event->y and drawing_area->allocation.y are interchangeable.

-- Steve

From: vtkusers <vtkusers-bounces at vtk.org> on behalf of "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
Date: Friday, November 3, 2017 at 10:11 AM
To: David Gobbi <david.gobbi at gmail.com>
Cc: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] vtk and gtk on macOS


HI David --

Thanks for the suggestions, which got me started on the right track.

What seems to work is this (somewhat simplified to eliminate some infrastructure):

// Create gtk widget and vtk window
GtkWidget *drawing_area = gtk_drawing_area_new();
vtkSmartPointer<vtkCocoaRenderWindow> render_window = vtkSmartPointer<vtkCocoaRenderWindow>::New();
// Connect to gtk signals.
g_signal_connect(drawing_area, "realize", realize_callback, ..)
g_signal_connect(drawing_area, "configure_event", configure_callback, ?)

// in realize_callback
gtk_widget_realize(drawing_area);
render_window->SetRootWindow(gtk_widget_get_root_window(drawing_area));
GdkWindow gparent = gtk_widget_get_parent_window(drawing_area);
NSView *pid = gdk_quartz_window_get_nsview(gparent);
render_window->SetParentId((void*) pid);

// in configure_callback
// event is a GdkEventConfigure* that's passed in as an argument
// Unlike David's  QWidget example, I do not use the superclass versions of SetSize and SetPosition
render_window->SetSize(event->width, event->height);
render_window->SetPosition(drawing_area->allocation.x, drawing_area->allocation.y);

I also added an expose event callback which just called render_window->Render(), but it doesn't seem to be necessary.

-- Steve

From: David Gobbi <david.gobbi at gmail.com>
Date: Tuesday, October 24, 2017 at 2:56 PM
To: "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
Cc: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] vtk and gtk on macOS

Hi Steve,

Here is some code that I use to bind a VTK window to a QWidget.  My guess is that something similar should work with GTK.  I have been using this on OS X with vtkCocoaRenderWindow.

void BindRenderWindow(vtkRenderWindow *window, QWidget *widget)
{
  // Unmap the window if it is already mapped somewhere else.
  if (window->GetMapped()) {
    window->Finalize();
  }
  // Create the connection
  window->SetWindowId(reinterpret_cast<void *>(widget->winId()));
  // Note that we must call the superclass SetSize()/SetPosition()
  // (we just want to set the member variables, with no side-effects)
  window->vtkRenderWindow::SetSize(widget->width(), widget->height());
  window->vtkRenderWindow::SetPosition(widget->x(), widget->y());
  // Prepare for rendering
  if (widget->isVisible()) {
    window->Start();
  }
  // Call SetSize() again, to synchronize the window to the widget
  window->SetSize(widget->width(), widget->height());
}

Some further notes:
1) I disable Qt's paint engine, so that Qt itself doesn't draw in the window.  GTK may be similar.
2) You probably will not need GtkGLExt (for Qt, I didn't have to use QGLWidget).

 - David



On Tue, Oct 24, 2017 at 12:12 PM, Langer, Stephen A. (Fed) <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>> wrote:
Hi --

Is there a simple way to get vtk to work inside a gtk+2 program on macOS?   If there isn't a simple way, is there a difficult one?

I'm trying to get a program that uses gtk+2 and vtk to work with a modern version of vtk -- I'm upgrading from 5.10.1 to 7.1.1 or 8.0.1.    On Linux, the following code creates a vtk render window and a gtk widget containing it:
    vtkRenderWindow *render_win = vtkRenderWindow::New();
    GtkWidget *drawing_area = gtk_drawing_area_new();
    Display *disp = GDK_DISPLAY();
    render_win->SetDisplayId(disp);
followed eventually by
     XID wid = GDK_WINDOW_XID(drawing_area->window);
     render_win->SetWindowId(wid);
after receiving the gtk "realize" signal on the drawing_area.

On macOS, I'd like to use the Cocoa version of gtk+2 and vtkCocoaRenderWindow, but I can't figure out how to embed the render window into a gtk widget.    All the examples I've found on-line aren't really applicable.

GtkGLExt might be applicable, but it doesn't look like it's being maintained.

An alternative would be to use X11, but native Mac OpenGL doesn't understand X11, so I tried installing mesa from macports , rebuilding vtk with VTK_USE_X instead of VTK_USE_COCOA, and linking to /opt/local/lib instead of /System/Library/Frameworks/OpenGL.framework.  Then I can use the same code as on Linux, but vtk complains about the context not supporting OpenGL 3.2, and then crashes:
  ERROR: In /Users/langer/UTIL/VTK/VTK-7.1.1/Rendering/OpenGL2/vtkTextureObject.cxx, line 440
  vtkTextureObject (0x7f9eafdb1690): failed at glGenTextures 1 OpenGL errors detected
    0 : (1280) Invalid enum

Thanks,
     Steve
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From kayarre at gmail.com  Tue Nov 14 20:30:57 2017
From: kayarre at gmail.com (Kurt Sansom)
Date: Tue, 14 Nov 2017 17:30:57 -0800
Subject: [vtkusers] Ensight Gold Binary Reader
Message-ID: <CAHyF3ohbp0wfvxN9NCEhx_+yoNGpo33t+YXrypmTWAUqDHRYqg@mail.gmail.com>

Hi,
  I am exporting fluent files to the ensight gold format, but I have
determined that either the ensight Gold format only supports floats or that
the vtk reader only supports reading into float arrays (single precision).

I  could not find information about ensight gold format (I did see ensight
6 and 5 mentioned not supporting double precision, bu no comment on ensight
gold)

I would like to know if I can create an vtkEnSightGoldBinaryDoubleReader
that will read in double precision arrays, or if the ensight gold format
doesn't support double precision.

Many thanks,
  VTK is so awesome. (especially the python bindings)

~Kurt

-- 
Kurt Sansom
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From 419655660 at qq.com  Wed Nov 15 01:58:50 2017
From: 419655660 at qq.com (louiskoo)
Date: Tue, 14 Nov 2017 23:58:50 -0700 (MST)
Subject: [vtkusers] vtkDICOMImageReader will reverse using
	ImagePositionPatient ?
Message-ID: <1510729130030-0.post@n5.nabble.com>

 vtkDICOMImageReader dicom_reader = vtkDICOMImageReader.New();
                dicom_reader.SetDirectoryName(dicom_folder);
                dicom_reader.Update();



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From petersenkolja at gmail.com  Wed Nov 15 05:26:11 2017
From: petersenkolja at gmail.com (Kolja Petersen)
Date: Wed, 15 Nov 2017 11:26:11 +0100
Subject: [vtkusers] TimerEvents not fired while dragging mouse in
	vtkRenderWindow
In-Reply-To: <CANXz0SYk6foMnmEOaDjd0NGX=BbsTxZ++xkO7mPe2NbUc7iCZg@mail.gmail.com>
References: <CAPN39MW_VyemRzzxcPwupsjhA-40OioScee2Qnm6rg-+RzXW1Q@mail.gmail.com>
 <CANXz0SYk6foMnmEOaDjd0NGX=BbsTxZ++xkO7mPe2NbUc7iCZg@mail.gmail.com>
Message-ID: <CAPN39MXrHX2g6aA+Uob8+rA6kkLz6yOr9Na72YeeVtWiDvm5Kg@mail.gmail.com>

I replaced the line "iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)"
with
iren.AddObserver(vtk.vtkCommand.TimerEvent,observer,100000.) (also tried
10.0 instead of 100000.)

Still no TimerEvents are reported as long as the mouse button is pressed.

How are events consumed? My understanding is that AddObserver(...) adds
just another listener, and that all listeners registered for a specific
event are invoked one after the other. Which function would "consume"
events in an interactor style? Is it possible to circumvent the consuming
of events, or to re-emit the event after it has been consumed?
Thank you
Kolja


On Tue, Nov 14, 2017 at 5:53 PM, Ken Martin <ken.martin at kitware.com> wrote:

> I suspect timer events are fired but something else is consuming them.
> Probably in the interactor style. Try adding your timer events with a
> higher priority like 10.0 (third argument).
>
> On Mon, Nov 13, 2017 at 3:21 PM, Kolja Petersen <petersenkolja at gmail.com>
> wrote:
>
>> Heya,
>> I paste some code below, which displays an empty vtkRenderWindow with an
>> interactor. The interactor fires a TimerEvent every 100ms as printed by the
>> Observer.
>> The problem: as long as I press a mouse button in the vtkRenderWindow,
>> the TimerEvents stop to be reported, although I need to process data
>> periodically in my application as a reaction to those TimerEvents.
>>
>> Why are no TimerEvents fired while a button is pressed, and how can I
>> change this behaviour?
>> Thank you
>> Kolja
>>
>> import vtk
>>
>> class Observer(object):
>>   def __init__(self):
>>     self.cnt=0
>>   def __call__(self,caller,evt):
>>     self.cnt+=1
>>     print "count %d %s" % (self.cnt,evt)
>>
>> ren1 = vtk.vtkRenderer()
>> ren1.SetBackground(0.1, 0.2, 0.4)
>>
>> renWin = vtk.vtkRenderWindow()
>> renWin.AddRenderer(ren1)
>> renWin.SetSize(300, 300)
>>
>> iren = vtk.vtkRenderWindowInteractor()
>> iren.SetRenderWindow(renWin)
>>
>> style = vtk.vtkInteractorStyleTrackballCamera()
>> iren.SetInteractorStyle(style)
>>
>> iren.Initialize()
>> observer=Observer()
>> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)
>> iren.AddObserver(vtk.vtkCommand.MouseMoveEvent,observer)
>> iren.AddObserver(vtk.vtkCommand.InteractionEvent,observer)
>> iren.CreateRepeatingTimer(100)
>> iren.Start()
>>
>>
>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virenfrei.
>> www.avast.com
>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
>> <#m_-5995428116567439952_m_5020402281578617109_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
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>>
>>
>
>
> --
> Ken Martin PhD
> Distinguished Engineer
> Kitware Inc.
> 28 Corporate Drive
> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065&entry=gmail&source=g>
> Clifton Park NY 12065
> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065&entry=gmail&source=g>
>
> This communication, including all attachments, contains confidential and
> legally privileged information, and it is intended only for the use of the
> addressee.  Access to this email by anyone else is unauthorized. If you are
> not the intended recipient, any disclosure, copying, distribution or any
> action taken in reliance on it is prohibited and may be unlawful. If you
> received this communication in error please notify us immediately and
> destroy the original message.  Thank you.
>
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From pengfeijia11 at sjtu.edu.cn  Wed Nov 15 06:17:11 2017
From: pengfeijia11 at sjtu.edu.cn (=?gb2312?B?vNbF9LfJ?=)
Date: Wed, 15 Nov 2017 19:17:11 +0800 (CST)
Subject: [vtkusers] using vtkImageBlend to combine two gray image
Message-ID: <928007308.11523911.1510744631970.JavaMail.zimbra@sjtu.edu.cn>

Hi All:

? I have two gray images (vtkimagedata version),? they have the same size. I want to combine them together using vtkimageblend.

1st? the following are some codes:

?vtkSmartPointer<vtkImageBlend> imgBlender = vtkSmartPointer<vtkImageBlend>::New();
?imgBlender->SetOpacity( 0, 0.5);
?imgBlender->SetOpacity( 1, 0.5);
?imgBlender->AddInput(AP);
?imgBlender->AddInput( APdrr );

It seems that the result is wrong! the second is in the window, while the first seems not in the proper position, only part of it.

2nd?Then I adjust the opacity?
vtkSmartPointer<vtkImageBlend> imgBlender = vtkSmartPointer<vtkImageBlend>::New();
?imgBlender->SetOpacity( 0, 1);
?imgBlender->SetOpacity( 1, 1);
?imgBlender->AddInput(AP);
?imgBlender->AddInput( APdrr );

then the result only shows the second image, there is not the first image!

can someone give me some suggestions, thanks in advance!

From landinghere at 163.com  Wed Nov 15 08:49:42 2017
From: landinghere at 163.com (landings)
Date: Wed, 15 Nov 2017 06:49:42 -0700 (MST)
Subject: [vtkusers] How to use unsigned char to represent cell types?
Message-ID: <1510753782836-0.post@n5.nabble.com>

I am using vtkUnstructuredGrid::SetCells() and I don't know what to fill into
the cellTypes array.

By the way, do parameters *types and *cellTypes contain similar values?

-------------------------------------
void vtkUnstructuredGrid::SetCells ( int type, vtkCellArray * cells ) 
void vtkUnstructuredGrid::SetCells ( int * types, vtkCellArray * cells ) 
void vtkUnstructuredGrid::SetCells ( vtkUnsignedCharArray * cellTypes,
vtkIdTypeArray * cellLocations, vtkCellArray * cells ) 
void vtkUnstructuredGrid::SetCells ( vtkUnsignedCharArray * cellTypes,
vtkIdTypeArray * cellLocations, vtkCellArray * cells, vtkIdTypeArray *
faceLocations, vtkIdTypeArray * faces ) 

Description:
-------------------------------------
Most cells require just arrays of cellTypes, cellLocations and
cellConnectivities which implicitly define the set of points in each cell
and their ordering. In those cases the cellConnectivities are of the format
(numFace0Pts, id1, id2, id3, numFace1Pts, id1, id2, id3...). However, some
cells like vtkPolyhedron require points plus a list of faces. To handle
vtkPolyhedron, SetCells() support a special input cellConnectivities format
(numCellFaces, numFace0Pts, id1, id2, id3, numFace1Pts,id1, id2, id3, ...)
The functions use vtkPolyhedron::DecomposeAPolyhedronCell() to convert
polyhedron cells into standard format.
-------------------------------------



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From DLRdave at aol.com  Wed Nov 15 11:25:07 2017
From: DLRdave at aol.com (David Cole)
Date: Wed, 15 Nov 2017 11:25:07 -0500
Subject: [vtkusers] TimerEvents not fired while dragging mouse in
	vtkRenderWindow
In-Reply-To: <CAPN39MXrHX2g6aA+Uob8+rA6kkLz6yOr9Na72YeeVtWiDvm5Kg@mail.gmail.com>
References: <CAPN39MW_VyemRzzxcPwupsjhA-40OioScee2Qnm6rg-+RzXW1Q@mail.gmail.com>
 <CANXz0SYk6foMnmEOaDjd0NGX=BbsTxZ++xkO7mPe2NbUc7iCZg@mail.gmail.com>
 <CAPN39MXrHX2g6aA+Uob8+rA6kkLz6yOr9Na72YeeVtWiDvm5Kg@mail.gmail.com>
Message-ID: <C27C3C2E-0457-46BD-894B-017AC0A77A81@aol.com>

Is this on Windows? WM_TIMER events are notorious for not firing frequently when lots of other user events are also happening. If the mouse is captured, they may not fire at all. This is not something unique to VTK, it happens with just any Windows program.

You may need to consider redesigning a bit of your app if you must have code being executed regularly even during user interactions.


David

> On Nov 15, 2017, at 5:26 AM, Kolja Petersen <petersenkolja at gmail.com> wrote:
> 
> I replaced the line "iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)" with
> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer,100000.) (also tried 10.0 instead of 100000.)
> 
> Still no TimerEvents are reported as long as the mouse button is pressed.
> 
> How are events consumed? My understanding is that AddObserver(...) adds just another listener, and that all listeners registered for a specific event are invoked one after the other. Which function would "consume" events in an interactor style? Is it possible to circumvent the consuming of events, or to re-emit the event after it has been consumed?
> Thank you
> Kolja
> 
> 
>> On Tue, Nov 14, 2017 at 5:53 PM, Ken Martin <ken.martin at kitware.com> wrote:
>> I suspect timer events are fired but something else is consuming them. Probably in the interactor style. Try adding your timer events with a higher priority like 10.0 (third argument).
>> 
>>> On Mon, Nov 13, 2017 at 3:21 PM, Kolja Petersen <petersenkolja at gmail.com> wrote:
>>> Heya,
>>> I paste some code below, which displays an empty vtkRenderWindow with an interactor. The interactor fires a TimerEvent every 100ms as printed by the Observer.
>>> The problem: as long as I press a mouse button in the vtkRenderWindow, the TimerEvents stop to be reported, although I need to process data periodically in my application as a reaction to those TimerEvents.
>>> 
>>> Why are no TimerEvents fired while a button is pressed, and how can I change this behaviour?
>>> Thank you
>>> Kolja
>>> 
>>> import vtk
>>> 
>>> class Observer(object):
>>>   def __init__(self):
>>>     self.cnt=0
>>>   def __call__(self,caller,evt):
>>>     self.cnt+=1
>>>     print "count %d %s" % (self.cnt,evt)
>>> 
>>> ren1 = vtk.vtkRenderer()
>>> ren1.SetBackground(0.1, 0.2, 0.4)
>>> 
>>> renWin = vtk.vtkRenderWindow()
>>> renWin.AddRenderer(ren1)
>>> renWin.SetSize(300, 300)
>>> 
>>> iren = vtk.vtkRenderWindowInteractor()
>>> iren.SetRenderWindow(renWin)
>>> 
>>> style = vtk.vtkInteractorStyleTrackballCamera()
>>> iren.SetInteractorStyle(style)
>>> 
>>> iren.Initialize()
>>> observer=Observer()
>>> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)
>>> iren.AddObserver(vtk.vtkCommand.MouseMoveEvent,observer)
>>> iren.AddObserver(vtk.vtkCommand.InteractionEvent,observer)
>>> iren.CreateRepeatingTimer(100)
>>> iren.Start()
>>> 
>>> 	Virenfrei. www.avast.com
>>> 
>>> _______________________________________________
>>> Powered by www.kitware.com
>>> 
>>> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>>> 
>>> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>>> 
>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>> 
>>> Follow this link to subscribe/unsubscribe:
>>> http://public.kitware.com/mailman/listinfo/vtkusers
>>> 
>> 
>> 
>> 
>> -- 
>> Ken Martin PhD
>> Distinguished Engineer
>> Kitware Inc.
>> 28 Corporate Drive
>> Clifton Park NY 12065
>> 
>> This communication, including all attachments, contains confidential and legally privileged information, and it is intended only for the use of the addressee.  Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken in reliance on it is prohibited and may be unlawful. If you received this communication in error please notify us immediately and destroy the original message.  Thank you.
> 
> _______________________________________________
> Powered by www.kitware.com
> 
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
> 
> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
> 
> Search the list archives at: http://markmail.org/search/?q=vtkusers
> 
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
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From petersenkolja at gmail.com  Wed Nov 15 11:42:55 2017
From: petersenkolja at gmail.com (Kolja Petersen)
Date: Wed, 15 Nov 2017 17:42:55 +0100
Subject: [vtkusers] TimerEvents not fired while dragging mouse in
	vtkRenderWindow
In-Reply-To: <C27C3C2E-0457-46BD-894B-017AC0A77A81@aol.com>
References: <CAPN39MW_VyemRzzxcPwupsjhA-40OioScee2Qnm6rg-+RzXW1Q@mail.gmail.com>
 <CANXz0SYk6foMnmEOaDjd0NGX=BbsTxZ++xkO7mPe2NbUc7iCZg@mail.gmail.com>
 <CAPN39MXrHX2g6aA+Uob8+rA6kkLz6yOr9Na72YeeVtWiDvm5Kg@mail.gmail.com>
 <C27C3C2E-0457-46BD-894B-017AC0A77A81@aol.com>
Message-ID: <CAPN39MWeJN6j9yY84kObvFLGGUEEez=XU7k7RvLEyVJv7+cVZg@mail.gmail.com>

No, this is on Linux. Maybe you can try the code snippet yourself to see
what I am talking about? The problem is not, that the TimerEvents are
slowed down during mouse interaction, they are dropped completely.

How can the app be redesigned?
First, I need the standard behaviour of vtkRenderWindowInteractor to allow
rotating, zooming, panning.
Second I need to update and redraw the scene repeatedly in constant
intervals. Of course, I could trigger these events independent from VTK
using a second thread. But these events need to operate on VTK objects from
the main thread. Because VTK is not thread safe (which I have experienced
by a number of segmentation faults when modifying VTK objects from
different threads), I see absolutely no way to correctly process both 1)
timer events and 2) user interaction events that block the timer events.
Kolja

<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
Virenfrei.
www.avast.com
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

On Wed, Nov 15, 2017 at 5:25 PM, David Cole <DLRdave at aol.com> wrote:

> Is this on Windows? WM_TIMER events are notorious for not firing
> frequently when lots of other user events are also happening. If the mouse
> is captured, they may not fire at all. This is not something unique to VTK,
> it happens with just any Windows program.
>
> You may need to consider redesigning a bit of your app if you must have
> code being executed regularly even during user interactions.
>
>
> David
>
> On Nov 15, 2017, at 5:26 AM, Kolja Petersen <petersenkolja at gmail.com>
> wrote:
>
> I replaced the line "iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)"
> with
> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer,100000.) (also tried
> 10.0 instead of 100000.)
>
> Still no TimerEvents are reported as long as the mouse button is pressed.
>
> How are events consumed? My understanding is that AddObserver(...) adds
> just another listener, and that all listeners registered for a specific
> event are invoked one after the other. Which function would "consume"
> events in an interactor style? Is it possible to circumvent the consuming
> of events, or to re-emit the event after it has been consumed?
> Thank you
> Kolja
>
>
> On Tue, Nov 14, 2017 at 5:53 PM, Ken Martin <ken.martin at kitware.com>
> wrote:
>
>> I suspect timer events are fired but something else is consuming them.
>> Probably in the interactor style. Try adding your timer events with a
>> higher priority like 10.0 (third argument).
>>
>> On Mon, Nov 13, 2017 at 3:21 PM, Kolja Petersen <petersenkolja at gmail.com>
>> wrote:
>>
>>> Heya,
>>> I paste some code below, which displays an empty vtkRenderWindow with an
>>> interactor. The interactor fires a TimerEvent every 100ms as printed by the
>>> Observer.
>>> The problem: as long as I press a mouse button in the vtkRenderWindow,
>>> the TimerEvents stop to be reported, although I need to process data
>>> periodically in my application as a reaction to those TimerEvents.
>>>
>>> Why are no TimerEvents fired while a button is pressed, and how can I
>>> change this behaviour?
>>> Thank you
>>> Kolja
>>>
>>> import vtk
>>>
>>> class Observer(object):
>>>   def __init__(self):
>>>     self.cnt=0
>>>   def __call__(self,caller,evt):
>>>     self.cnt+=1
>>>     print "count %d %s" % (self.cnt,evt)
>>>
>>> ren1 = vtk.vtkRenderer()
>>> ren1.SetBackground(0.1, 0.2, 0.4)
>>>
>>> renWin = vtk.vtkRenderWindow()
>>> renWin.AddRenderer(ren1)
>>> renWin.SetSize(300, 300)
>>>
>>> iren = vtk.vtkRenderWindowInteractor()
>>> iren.SetRenderWindow(renWin)
>>>
>>> style = vtk.vtkInteractorStyleTrackballCamera()
>>> iren.SetInteractorStyle(style)
>>>
>>> iren.Initialize()
>>> observer=Observer()
>>> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)
>>> iren.AddObserver(vtk.vtkCommand.MouseMoveEvent,observer)
>>> iren.AddObserver(vtk.vtkCommand.InteractionEvent,observer)
>>> iren.CreateRepeatingTimer(100)
>>> iren.Start()
>>>
>>>
>>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virenfrei.
>>> www.avast.com
>>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
>>> <#m_-7045443072964375499_m_-5995428116567439952_m_5020402281578617109_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>>
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the VTK FAQ at:
>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>
>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> http://public.kitware.com/mailman/listinfo/vtkusers
>>>
>>>
>>
>>
>> --
>> Ken Martin PhD
>> Distinguished Engineer
>> Kitware Inc.
>> 28 Corporate Drive
>> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065&entry=gmail&source=g>
>> Clifton Park NY 12065
>> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065&entry=gmail&source=g>
>>
>> This communication, including all attachments, contains confidential and
>> legally privileged information, and it is intended only for the use of the
>> addressee.  Access to this email by anyone else is unauthorized. If you are
>> not the intended recipient, any disclosure, copying, distribution or any
>> action taken in reliance on it is prohibited and may be unlawful. If you
>> received this communication in error please notify us immediately and
>> destroy the original message.  Thank you.
>>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>
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From ken.martin at kitware.com  Wed Nov 15 11:48:24 2017
From: ken.martin at kitware.com (Ken Martin)
Date: Wed, 15 Nov 2017 11:48:24 -0500
Subject: [vtkusers] TimerEvents not fired while dragging mouse in
	vtkRenderWindow
In-Reply-To: <CAPN39MWeJN6j9yY84kObvFLGGUEEez=XU7k7RvLEyVJv7+cVZg@mail.gmail.com>
References: <CAPN39MW_VyemRzzxcPwupsjhA-40OioScee2Qnm6rg-+RzXW1Q@mail.gmail.com>
 <CANXz0SYk6foMnmEOaDjd0NGX=BbsTxZ++xkO7mPe2NbUc7iCZg@mail.gmail.com>
 <CAPN39MXrHX2g6aA+Uob8+rA6kkLz6yOr9Na72YeeVtWiDvm5Kg@mail.gmail.com>
 <C27C3C2E-0457-46BD-894B-017AC0A77A81@aol.com>
 <CAPN39MWeJN6j9yY84kObvFLGGUEEez=XU7k7RvLEyVJv7+cVZg@mail.gmail.com>
Message-ID: <CANXz0SZUXyqffmwG4TM3sJw+vuwuARL14mR+TXfkMcciXrjW8g@mail.gmail.com>

The interactor style may be doing a grab focus (which grabs all events
until the motion is done). Try putting some  printfs/breaks in the code
that generates the timerevent in vtk. Then maybe you can follow the event
and see who is consuming it etc,.

Or try commenting out all the GrabFocus() calls in the style you are using.

On Wed, Nov 15, 2017 at 11:42 AM, Kolja Petersen <petersenkolja at gmail.com>
wrote:

> No, this is on Linux. Maybe you can try the code snippet yourself to see
> what I am talking about? The problem is not, that the TimerEvents are
> slowed down during mouse interaction, they are dropped completely.
>
> How can the app be redesigned?
> First, I need the standard behaviour of vtkRenderWindowInteractor to allow
> rotating, zooming, panning.
> Second I need to update and redraw the scene repeatedly in constant
> intervals. Of course, I could trigger these events independent from VTK
> using a second thread. But these events need to operate on VTK objects from
> the main thread. Because VTK is not thread safe (which I have experienced
> by a number of segmentation faults when modifying VTK objects from
> different threads), I see absolutely no way to correctly process both 1)
> timer events and 2) user interaction events that block the timer events.
> Kolja
>
>
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virenfrei.
> www.avast.com
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
> <#m_869865242780024731_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>
> On Wed, Nov 15, 2017 at 5:25 PM, David Cole <DLRdave at aol.com> wrote:
>
>> Is this on Windows? WM_TIMER events are notorious for not firing
>> frequently when lots of other user events are also happening. If the mouse
>> is captured, they may not fire at all. This is not something unique to VTK,
>> it happens with just any Windows program.
>>
>> You may need to consider redesigning a bit of your app if you must have
>> code being executed regularly even during user interactions.
>>
>>
>> David
>>
>> On Nov 15, 2017, at 5:26 AM, Kolja Petersen <petersenkolja at gmail.com>
>> wrote:
>>
>> I replaced the line "iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)"
>> with
>> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer,100000.) (also tried
>> 10.0 instead of 100000.)
>>
>> Still no TimerEvents are reported as long as the mouse button is pressed.
>>
>> How are events consumed? My understanding is that AddObserver(...) adds
>> just another listener, and that all listeners registered for a specific
>> event are invoked one after the other. Which function would "consume"
>> events in an interactor style? Is it possible to circumvent the consuming
>> of events, or to re-emit the event after it has been consumed?
>> Thank you
>> Kolja
>>
>>
>> On Tue, Nov 14, 2017 at 5:53 PM, Ken Martin <ken.martin at kitware.com>
>> wrote:
>>
>>> I suspect timer events are fired but something else is consuming them.
>>> Probably in the interactor style. Try adding your timer events with a
>>> higher priority like 10.0 (third argument).
>>>
>>> On Mon, Nov 13, 2017 at 3:21 PM, Kolja Petersen <petersenkolja at gmail.com
>>> > wrote:
>>>
>>>> Heya,
>>>> I paste some code below, which displays an empty vtkRenderWindow with
>>>> an interactor. The interactor fires a TimerEvent every 100ms as printed by
>>>> the Observer.
>>>> The problem: as long as I press a mouse button in the vtkRenderWindow,
>>>> the TimerEvents stop to be reported, although I need to process data
>>>> periodically in my application as a reaction to those TimerEvents.
>>>>
>>>> Why are no TimerEvents fired while a button is pressed, and how can I
>>>> change this behaviour?
>>>> Thank you
>>>> Kolja
>>>>
>>>> import vtk
>>>>
>>>> class Observer(object):
>>>>   def __init__(self):
>>>>     self.cnt=0
>>>>   def __call__(self,caller,evt):
>>>>     self.cnt+=1
>>>>     print "count %d %s" % (self.cnt,evt)
>>>>
>>>> ren1 = vtk.vtkRenderer()
>>>> ren1.SetBackground(0.1, 0.2, 0.4)
>>>>
>>>> renWin = vtk.vtkRenderWindow()
>>>> renWin.AddRenderer(ren1)
>>>> renWin.SetSize(300, 300)
>>>>
>>>> iren = vtk.vtkRenderWindowInteractor()
>>>> iren.SetRenderWindow(renWin)
>>>>
>>>> style = vtk.vtkInteractorStyleTrackballCamera()
>>>> iren.SetInteractorStyle(style)
>>>>
>>>> iren.Initialize()
>>>> observer=Observer()
>>>> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)
>>>> iren.AddObserver(vtk.vtkCommand.MouseMoveEvent,observer)
>>>> iren.AddObserver(vtk.vtkCommand.InteractionEvent,observer)
>>>> iren.CreateRepeatingTimer(100)
>>>> iren.Start()
>>>>
>>>>
>>>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virenfrei.
>>>> www.avast.com
>>>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
>>>> <#m_869865242780024731_m_-7045443072964375499_m_-5995428116567439952_m_5020402281578617109_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>>>
>>>> _______________________________________________
>>>> Powered by www.kitware.com
>>>>
>>>> Visit other Kitware open-source projects at
>>>> http://www.kitware.com/opensource/opensource.html
>>>>
>>>> Please keep messages on-topic and check the VTK FAQ at:
>>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>>
>>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>>
>>>> Follow this link to subscribe/unsubscribe:
>>>> http://public.kitware.com/mailman/listinfo/vtkusers
>>>>
>>>>
>>>
>>>
>>> --
>>> Ken Martin PhD
>>> Distinguished Engineer
>>> Kitware Inc.
>>> 28 Corporate Drive
>>> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065&entry=gmail&source=g>
>>> Clifton Park NY 12065
>>> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065&entry=gmail&source=g>
>>>
>>> This communication, including all attachments, contains confidential and
>>> legally privileged information, and it is intended only for the use of the
>>> addressee.  Access to this email by anyone else is unauthorized. If you are
>>> not the intended recipient, any disclosure, copying, distribution or any
>>> action taken in reliance on it is prohibited and may be unlawful. If you
>>> received this communication in error please notify us immediately and
>>> destroy the original message.  Thank you.
>>>
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/vtkusers
>>
>>
>


-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
not the intended recipient, any disclosure, copying, distribution or any
action taken in reliance on it is prohibited and may be unlawful. If you
received this communication in error please notify us immediately and
destroy the original message.  Thank you.
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From kayarre at gmail.com  Wed Nov 15 12:12:14 2017
From: kayarre at gmail.com (Kurt Sansom)
Date: Wed, 15 Nov 2017 09:12:14 -0800
Subject: [vtkusers] Ensight Gold Binary Reader
In-Reply-To: <CAHyF3ohbp0wfvxN9NCEhx_+yoNGpo33t+YXrypmTWAUqDHRYqg@mail.gmail.com>
References: <CAHyF3ohbp0wfvxN9NCEhx_+yoNGpo33t+YXrypmTWAUqDHRYqg@mail.gmail.com>
Message-ID: <CAHyF3ojEa3hHnWSg=ibp0aCDr8giHztxtuLfAS1wKSQgPNhStg@mail.gmail.com>

I contacted ensight. The ensight gold binary format does not support double
precision. Bummer Town.

~Kurt

On Tue, Nov 14, 2017 at 5:30 PM, Kurt Sansom <kayarre at gmail.com> wrote:

> Hi,
>   I am exporting fluent files to the ensight gold format, but I have
> determined that either the ensight Gold format only supports floats or that
> the vtk reader only supports reading into float arrays (single precision).
>
> I  could not find information about ensight gold format (I did see ensight
> 6 and 5 mentioned not supporting double precision, bu no comment on ensight
> gold)
>
> I would like to know if I can create an vtkEnSightGoldBinaryDoubleReader
> that will read in double precision arrays, or if the ensight gold format
> doesn't support double precision.
>
> Many thanks,
>   VTK is so awesome. (especially the python bindings)
>
> ~Kurt
>
> --
> Kurt Sansom
>



-- 
Kurt Sansom
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From petersenkolja at gmail.com  Wed Nov 15 12:28:43 2017
From: petersenkolja at gmail.com (Kolja Petersen)
Date: Wed, 15 Nov 2017 18:28:43 +0100
Subject: [vtkusers] TimerEvents not fired while dragging mouse in
	vtkRenderWindow
In-Reply-To: <CANXz0SZUXyqffmwG4TM3sJw+vuwuARL14mR+TXfkMcciXrjW8g@mail.gmail.com>
References: <CAPN39MW_VyemRzzxcPwupsjhA-40OioScee2Qnm6rg-+RzXW1Q@mail.gmail.com>
 <CANXz0SYk6foMnmEOaDjd0NGX=BbsTxZ++xkO7mPe2NbUc7iCZg@mail.gmail.com>
 <CAPN39MXrHX2g6aA+Uob8+rA6kkLz6yOr9Na72YeeVtWiDvm5Kg@mail.gmail.com>
 <C27C3C2E-0457-46BD-894B-017AC0A77A81@aol.com>
 <CAPN39MWeJN6j9yY84kObvFLGGUEEez=XU7k7RvLEyVJv7+cVZg@mail.gmail.com>
 <CANXz0SZUXyqffmwG4TM3sJw+vuwuARL14mR+TXfkMcciXrjW8g@mail.gmail.com>
Message-ID: <CAPN39MXO3udKF=NJqVTCwYsKya_+OhasputUKopp-dJq0J5akA@mail.gmail.com>

On Wed, Nov 15, 2017 at 5:48 PM, Ken Martin <ken.martin at kitware.com> wrote:

> The interactor style may be doing a grab focus (which grabs all events
> until the motion is done). Try putting some  printfs/breaks in the code
> that generates the timerevent in vtk. Then maybe you can follow the event
> and see who is consuming it etc,.
>

Or maybe I can't because the event forwarding is so entangled that nobody
dares to look into it again.


> Or try commenting out all the GrabFocus() calls in the style you are
> using.
>

Did that. Now the interactor is dead.


>
> On Wed, Nov 15, 2017 at 11:42 AM, Kolja Petersen <petersenkolja at gmail.com>
> wrote:
>
>> No, this is on Linux. Maybe you can try the code snippet yourself to see
>> what I am talking about? The problem is not, that the TimerEvents are
>> slowed down during mouse interaction, they are dropped completely.
>>
>> How can the app be redesigned?
>> First, I need the standard behaviour of vtkRenderWindowInteractor to
>> allow rotating, zooming, panning.
>> Second I need to update and redraw the scene repeatedly in constant
>> intervals. Of course, I could trigger these events independent from VTK
>> using a second thread. But these events need to operate on VTK objects from
>> the main thread. Because VTK is not thread safe (which I have experienced
>> by a number of segmentation faults when modifying VTK objects from
>> different threads), I see absolutely no way to correctly process both 1)
>> timer events and 2) user interaction events that block the timer events.
>> Kolja
>>
>>
>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virenfrei.
>> www.avast.com
>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
>> <#m_-1757675277711270463_m_869865242780024731_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>
>> On Wed, Nov 15, 2017 at 5:25 PM, David Cole <DLRdave at aol.com> wrote:
>>
>>> Is this on Windows? WM_TIMER events are notorious for not firing
>>> frequently when lots of other user events are also happening. If the mouse
>>> is captured, they may not fire at all. This is not something unique to VTK,
>>> it happens with just any Windows program.
>>>
>>> You may need to consider redesigning a bit of your app if you must have
>>> code being executed regularly even during user interactions.
>>>
>>>
>>> David
>>>
>>> On Nov 15, 2017, at 5:26 AM, Kolja Petersen <petersenkolja at gmail.com>
>>> wrote:
>>>
>>> I replaced the line "iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)"
>>> with
>>> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer,100000.) (also
>>> tried 10.0 instead of 100000.)
>>>
>>> Still no TimerEvents are reported as long as the mouse button is pressed.
>>>
>>> How are events consumed? My understanding is that AddObserver(...) adds
>>> just another listener, and that all listeners registered for a specific
>>> event are invoked one after the other. Which function would "consume"
>>> events in an interactor style? Is it possible to circumvent the consuming
>>> of events, or to re-emit the event after it has been consumed?
>>> Thank you
>>> Kolja
>>>
>>>
>>> On Tue, Nov 14, 2017 at 5:53 PM, Ken Martin <ken.martin at kitware.com>
>>> wrote:
>>>
>>>> I suspect timer events are fired but something else is consuming them.
>>>> Probably in the interactor style. Try adding your timer events with a
>>>> higher priority like 10.0 (third argument).
>>>>
>>>> On Mon, Nov 13, 2017 at 3:21 PM, Kolja Petersen <
>>>> petersenkolja at gmail.com> wrote:
>>>>
>>>>> Heya,
>>>>> I paste some code below, which displays an empty vtkRenderWindow with
>>>>> an interactor. The interactor fires a TimerEvent every 100ms as printed by
>>>>> the Observer.
>>>>> The problem: as long as I press a mouse button in the vtkRenderWindow,
>>>>> the TimerEvents stop to be reported, although I need to process data
>>>>> periodically in my application as a reaction to those TimerEvents.
>>>>>
>>>>> Why are no TimerEvents fired while a button is pressed, and how can I
>>>>> change this behaviour?
>>>>> Thank you
>>>>> Kolja
>>>>>
>>>>> import vtk
>>>>>
>>>>> class Observer(object):
>>>>>   def __init__(self):
>>>>>     self.cnt=0
>>>>>   def __call__(self,caller,evt):
>>>>>     self.cnt+=1
>>>>>     print "count %d %s" % (self.cnt,evt)
>>>>>
>>>>> ren1 = vtk.vtkRenderer()
>>>>> ren1.SetBackground(0.1, 0.2, 0.4)
>>>>>
>>>>> renWin = vtk.vtkRenderWindow()
>>>>> renWin.AddRenderer(ren1)
>>>>> renWin.SetSize(300, 300)
>>>>>
>>>>> iren = vtk.vtkRenderWindowInteractor()
>>>>> iren.SetRenderWindow(renWin)
>>>>>
>>>>> style = vtk.vtkInteractorStyleTrackballCamera()
>>>>> iren.SetInteractorStyle(style)
>>>>>
>>>>> iren.Initialize()
>>>>> observer=Observer()
>>>>> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)
>>>>> iren.AddObserver(vtk.vtkCommand.MouseMoveEvent,observer)
>>>>> iren.AddObserver(vtk.vtkCommand.InteractionEvent,observer)
>>>>> iren.CreateRepeatingTimer(100)
>>>>> iren.Start()
>>>>>
>>>>>
>>>>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virenfrei.
>>>>> www.avast.com
>>>>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
>>>>> <#m_-1757675277711270463_m_869865242780024731_m_-7045443072964375499_m_-5995428116567439952_m_5020402281578617109_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>>>>
>>>>> _______________________________________________
>>>>> Powered by www.kitware.com
>>>>>
>>>>> Visit other Kitware open-source projects at
>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>
>>>>> Please keep messages on-topic and check the VTK FAQ at:
>>>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>>>
>>>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>>>
>>>>> Follow this link to subscribe/unsubscribe:
>>>>> http://public.kitware.com/mailman/listinfo/vtkusers
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Ken Martin PhD
>>>> Distinguished Engineer
>>>> Kitware Inc.
>>>> 28 Corporate Drive
>>>> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065&entry=gmail&source=g>
>>>> Clifton Park NY 12065
>>>> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065&entry=gmail&source=g>
>>>>
>>>> This communication, including all attachments, contains confidential
>>>> and legally privileged information, and it is intended only for the use of
>>>> the addressee.  Access to this email by anyone else is unauthorized. If you
>>>> are not the intended recipient, any disclosure, copying, distribution or
>>>> any action taken in reliance on it is prohibited and may be unlawful. If
>>>> you received this communication in error please notify us immediately and
>>>> destroy the original message.  Thank you.
>>>>
>>>
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the VTK FAQ at:
>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>
>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>
>>> Follow this link to subscribe/unsubscribe:
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>>>
>>
>
>
> --
> Ken Martin PhD
> Distinguished Engineer
> Kitware Inc.
> 28 Corporate Drive
> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065+%3Chttps://maps.google.com/?q%3D28%2BCorporate%2BDrive%2BClifton%2BPark%2BNY%2B12065%26entry%3Dgmail%26source%3Dg%3E&entry=gmail&source=g>
> Clifton Park NY 12065
> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065+%3Chttps://maps.google.com/?q%3D28%2BCorporate%2BDrive%2BClifton%2BPark%2BNY%2B12065%26entry%3Dgmail%26source%3Dg%3E&entry=gmail&source=g>
>
> This communication, including all attachments, contains confidential and
> legally privileged information, and it is intended only for the use of the
> addressee.  Access to this email by anyone else is unauthorized. If you are
> not the intended recipient, any disclosure, copying, distribution or any
> action taken in reliance on it is prohibited and may be unlawful. If you
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From lasso at queensu.ca  Wed Nov 15 12:41:16 2017
From: lasso at queensu.ca (Andras Lasso)
Date: Wed, 15 Nov 2017 17:41:16 +0000
Subject: [vtkusers] vtkbioeng for vtk7.1.1 ?
In-Reply-To: <1510664968533-0.post@n5.nabble.com>
References: <1510664968533-0.post@n5.nabble.com>
Message-ID: <BY2PR0701MB1941571820813B271023441BD8290@BY2PR0701MB1941.namprd07.prod.outlook.com>

We have an updated version of the collision detection filter in SlicerRT:

https://github.com/SlicerRt/SlicerRT/blob/master/SlicerRtCommon/vtkCollisionDetectionFilter.cxx

I think it works with latest VTK version.

It would be nice to add this to VTK proper.

Andras

-----Original Message-----
From: vtkusers [mailto:vtkusers-bounces at vtk.org] On Behalf Of -Daniel-
Sent: Tuesday, November 14, 2017 8:09 AM
To: vtkusers at vtk.org
Subject: [vtkusers] vtkbioeng for vtk7.1.1 ?

Hi there,

I would like to use vtkbioeng with vtk7.1.1, but apparently this is no longer supported. Only up to version 6? Or is there already a solution for that?
I'm particularly interested in collision detection.

Every hint is welcome!



--
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From jlewis at accuray.com  Wed Nov 15 13:24:05 2017
From: jlewis at accuray.com (Jeffery Lewis)
Date: Wed, 15 Nov 2017 18:24:05 +0000
Subject: [vtkusers] using vtkImageBlend to combine two gray image (???)
Message-ID: <BN6PR05MB3313B832CCD1CCBA33B29DDAC5290@BN6PR05MB3313.namprd05.prod.outlook.com>

If you are using the default normal blend mode, then setting the opacity on the 0 index input will do nothing. To see both images, you just need to set the second input to its desired opacity, the 0 index input will get the remaining. I would consider using vtkImageBlend::SetInputConnection() (the overload that does not have a port parameter) for the first input, and then calling AddInputConnection() for the second input. This will assure older inputs are cleared out.

Your first code sample seems like it is working. Not sure though why the first image is not in the right position. That could be something not caused by vtkImageBlend. Your second code sample though would expect the first image to not show up because the call to SetOpacity(1, 1) would visualize the opacity of the first image to 0.

If you have more than two images to blend, I would recommend using the blend mode compound. When using the blend mode compound, setting the opacity to the first input does do something. To get what you would typically expect, your opacities for all the inputs should add up to 1.

-----Original Message-----
From: vtkusers [mailto:vtkusers-bounces at vtk.org] On Behalf Of vtkusers-request at vtk.org
Sent: Wednesday, November 15, 2017 9:00 AM
To: vtkusers at vtk.org
Subject: vtkusers Digest, Vol 163, Issue 18

Send vtkusers mailing list submissions to
vtkusers at vtk.org

To subscribe or unsubscribe via the World Wide Web, visit
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When replying, please edit your Subject line so it is more specific than "Re: Contents of vtkusers digest..."


Today's Topics:

   1. Re: vtk and gtk on macOS (Langer, Stephen A. (Fed))
   2. Re: vtk and gtk on macOS (Langer, Stephen A. (Fed))
   3. Ensight Gold Binary Reader (Kurt Sansom)
   4. vtkDICOMImageReader will reverse usingImagePositionPatient ?
      (louiskoo)
   5. Re: TimerEvents not fired while dragging mouse in
      vtkRenderWindow (Kolja Petersen)
   6. using vtkImageBlend to combine two gray image (???)
   7. How to use unsigned char to represent cell types? (landings)
   8. Re: TimerEvents not fired while dragging mouse in
      vtkRenderWindow (David Cole)
   9. Re: TimerEvents not fired while dragging mouse in
      vtkRenderWindow (Kolja Petersen)
  10. Re: TimerEvents not fired while dragging mouse in
      vtkRenderWindow (Ken Martin)


----------------------------------------------------------------------

Message: 1
Date: Tue, 14 Nov 2017 19:05:44 +0000
From: "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
To: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] vtk and gtk on macOS
Message-ID: <3CDBE37E-520E-46EB-BA69-30F177FC71EF at nist.gov>
Content-Type: text/plain; charset="utf-8"

Just in case someone else is trying to do the same thing and finds this message, the configure callback below is incorrect because gtk and vtk have different ideas about which direction is up.  The call to render_window->SetPosition should be
  GtkWidget *top = gtk_widget_get_toplevel(drawing_area)
 render_window->SetPosition(top->allocation.height- event->y - event->height);

event->y and drawing_area->allocation.y are interchangeable.

-- Steve

From: vtkusers <vtkusers-bounces at vtk.org> on behalf of "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
Date: Friday, November 3, 2017 at 10:11 AM
To: David Gobbi <david.gobbi at gmail.com>
Cc: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] vtk and gtk on macOS


HI David --

Thanks for the suggestions, which got me started on the right track.

What seems to work is this (somewhat simplified to eliminate some infrastructure):

// Create gtk widget and vtk window
GtkWidget *drawing_area = gtk_drawing_area_new(); vtkSmartPointer<vtkCocoaRenderWindow> render_window = vtkSmartPointer<vtkCocoaRenderWindow>::New();
// Connect to gtk signals.
g_signal_connect(drawing_area, "realize", realize_callback, ..) g_signal_connect(drawing_area, "configure_event", configure_callback, ?)

// in realize_callback
gtk_widget_realize(drawing_area);
render_window->SetRootWindow(gtk_widget_get_root_window(drawing_area));
GdkWindow gparent = gtk_widget_get_parent_window(drawing_area);
NSView *pid = gdk_quartz_window_get_nsview(gparent);
render_window->SetParentId((void*) pid);

// in configure_callback
// event is a GdkEventConfigure* that's passed in as an argument // Unlike David's  QWidget example, I do not use the superclass versions of SetSize and SetPosition render_window->SetSize(event->width, event->height); render_window->SetPosition(drawing_area->allocation.x, drawing_area->allocation.y);

I also added an expose event callback which just called render_window->Render(), but it doesn't seem to be necessary.

-- Steve

From: David Gobbi <david.gobbi at gmail.com>
Date: Tuesday, October 24, 2017 at 2:56 PM
To: "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
Cc: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] vtk and gtk on macOS

Hi Steve,

Here is some code that I use to bind a VTK window to a QWidget.  My guess is that something similar should work with GTK.  I have been using this on OS X with vtkCocoaRenderWindow.

void BindRenderWindow(vtkRenderWindow *window, QWidget *widget) {
  // Unmap the window if it is already mapped somewhere else.
  if (window->GetMapped()) {
    window->Finalize();
  }
  // Create the connection
  window->SetWindowId(reinterpret_cast<void *>(widget->winId()));
  // Note that we must call the superclass SetSize()/SetPosition()
  // (we just want to set the member variables, with no side-effects)
  window->vtkRenderWindow::SetSize(widget->width(), widget->height());
  window->vtkRenderWindow::SetPosition(widget->x(), widget->y());
  // Prepare for rendering
  if (widget->isVisible()) {
    window->Start();
  }
  // Call SetSize() again, to synchronize the window to the widget
  window->SetSize(widget->width(), widget->height()); }

Some further notes:
1) I disable Qt's paint engine, so that Qt itself doesn't draw in the window.  GTK may be similar.
2) You probably will not need GtkGLExt (for Qt, I didn't have to use QGLWidget).

 - David



On Tue, Oct 24, 2017 at 12:12 PM, Langer, Stephen A. (Fed) <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>> wrote:
Hi --

Is there a simple way to get vtk to work inside a gtk+2 program on macOS?   If there isn't a simple way, is there a difficult one?

I'm trying to get a program that uses gtk+2 and vtk to work with a modern version of vtk -- I'm upgrading from 5.10.1 to 7.1.1 or 8.0.1.    On Linux, the following code creates a vtk render window and a gtk widget containing it:
    vtkRenderWindow *render_win = vtkRenderWindow::New();
    GtkWidget *drawing_area = gtk_drawing_area_new();
    Display *disp = GDK_DISPLAY();
    render_win->SetDisplayId(disp);
followed eventually by
     XID wid = GDK_WINDOW_XID(drawing_area->window);
     render_win->SetWindowId(wid);
after receiving the gtk "realize" signal on the drawing_area.

On macOS, I'd like to use the Cocoa version of gtk+2 and vtkCocoaRenderWindow, but I can't figure out how to embed the render window into a gtk widget.    All the examples I've found on-line aren't really applicable.

GtkGLExt might be applicable, but it doesn't look like it's being maintained.

An alternative would be to use X11, but native Mac OpenGL doesn't understand X11, so I tried installing mesa from macports , rebuilding vtk with VTK_USE_X instead of VTK_USE_COCOA, and linking to /opt/local/lib instead of /System/Library/Frameworks/OpenGL.framework.  Then I can use the same code as on Linux, but vtk complains about the context not supporting OpenGL 3.2, and then crashes:
  ERROR: In /Users/langer/UTIL/VTK/VTK-7.1.1/Rendering/OpenGL2/vtkTextureObject.cxx, line 440
  vtkTextureObject (0x7f9eafdb1690): failed at glGenTextures 1 OpenGL errors detected
    0 : (1280) Invalid enum

Thanks,
     Steve
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------------------------------

Message: 2
Date: Tue, 14 Nov 2017 19:59:19 +0000
From: "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
To: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] vtk and gtk on macOS
Message-ID: <A0CD0716-BE99-45E8-BC48-618DBC31AA39 at nist.gov>
Content-Type: text/plain; charset="utf-8"

Responding to my own message again?

Is it possible that the vtk or gtk+2 coordinate systems are different on different platforms?
On a Mac, using vtk 7.1.1 and Cocoa, the configure callback for the vtk render window inside a gtk widget looks like this:

gboolean OOFCanvas3D::configure(GdkEventConfigure *event) {
   render_window->SetSize(event->width, event->height);
  GtkWidget *topwindow = gtk_widget_get_toplevel(drawing_area);
  assert(topwindow != nullptr);
  int top_height = topwindow->allocation.height;
  render_window->SetPosition(event->x, top_height - event->y - event->height);
  return true;
}

but that doesn't work on Linux (Ubuntu inside VirtualBox, using vtk 7.1.1 and X11), where it has to be this:

gboolean OOFCanvas3D::configure(GdkEventConfigure *event) {
   render_window->SetSize(event->width, event->height);
  render_window->SetPosition(event->x, event->y);
  return true;
}

Both of these do what they should do (on their respective platforms) when the space allocated for the vtk render window is changed.  But it looks like on the Mac the position of the vtk widget is measured from the bottom of the enclosing window while on Linux it's measured from the top!  Can this be true?  What am I missing?

Thanks.

-- Steve


From: vtkusers <vtkusers-bounces at vtk.org> on behalf of "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
Date: Tuesday, November 14, 2017 at 2:06 PM
To: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] vtk and gtk on macOS

Just in case someone else is trying to do the same thing and finds this message, the configure callback below is incorrect because gtk and vtk have different ideas about which direction is up.  The call to render_window->SetPosition should be
  GtkWidget *top = gtk_widget_get_toplevel(drawing_area)
 render_window->SetPosition(top->allocation.height- event->y - event->height);

event->y and drawing_area->allocation.y are interchangeable.

-- Steve

From: vtkusers <vtkusers-bounces at vtk.org> on behalf of "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
Date: Friday, November 3, 2017 at 10:11 AM
To: David Gobbi <david.gobbi at gmail.com>
Cc: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] vtk and gtk on macOS


HI David --

Thanks for the suggestions, which got me started on the right track.

What seems to work is this (somewhat simplified to eliminate some infrastructure):

// Create gtk widget and vtk window
GtkWidget *drawing_area = gtk_drawing_area_new(); vtkSmartPointer<vtkCocoaRenderWindow> render_window = vtkSmartPointer<vtkCocoaRenderWindow>::New();
// Connect to gtk signals.
g_signal_connect(drawing_area, "realize", realize_callback, ..) g_signal_connect(drawing_area, "configure_event", configure_callback, ?)

// in realize_callback
gtk_widget_realize(drawing_area);
render_window->SetRootWindow(gtk_widget_get_root_window(drawing_area));
GdkWindow gparent = gtk_widget_get_parent_window(drawing_area);
NSView *pid = gdk_quartz_window_get_nsview(gparent);
render_window->SetParentId((void*) pid);

// in configure_callback
// event is a GdkEventConfigure* that's passed in as an argument // Unlike David's  QWidget example, I do not use the superclass versions of SetSize and SetPosition render_window->SetSize(event->width, event->height); render_window->SetPosition(drawing_area->allocation.x, drawing_area->allocation.y);

I also added an expose event callback which just called render_window->Render(), but it doesn't seem to be necessary.

-- Steve

From: David Gobbi <david.gobbi at gmail.com>
Date: Tuesday, October 24, 2017 at 2:56 PM
To: "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
Cc: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] vtk and gtk on macOS

Hi Steve,

Here is some code that I use to bind a VTK window to a QWidget.  My guess is that something similar should work with GTK.  I have been using this on OS X with vtkCocoaRenderWindow.

void BindRenderWindow(vtkRenderWindow *window, QWidget *widget) {
  // Unmap the window if it is already mapped somewhere else.
  if (window->GetMapped()) {
    window->Finalize();
  }
  // Create the connection
  window->SetWindowId(reinterpret_cast<void *>(widget->winId()));
  // Note that we must call the superclass SetSize()/SetPosition()
  // (we just want to set the member variables, with no side-effects)
  window->vtkRenderWindow::SetSize(widget->width(), widget->height());
  window->vtkRenderWindow::SetPosition(widget->x(), widget->y());
  // Prepare for rendering
  if (widget->isVisible()) {
    window->Start();
  }
  // Call SetSize() again, to synchronize the window to the widget
  window->SetSize(widget->width(), widget->height()); }

Some further notes:
1) I disable Qt's paint engine, so that Qt itself doesn't draw in the window.  GTK may be similar.
2) You probably will not need GtkGLExt (for Qt, I didn't have to use QGLWidget).

 - David



On Tue, Oct 24, 2017 at 12:12 PM, Langer, Stephen A. (Fed) <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>> wrote:
Hi --

Is there a simple way to get vtk to work inside a gtk+2 program on macOS?   If there isn't a simple way, is there a difficult one?

I'm trying to get a program that uses gtk+2 and vtk to work with a modern version of vtk -- I'm upgrading from 5.10.1 to 7.1.1 or 8.0.1.    On Linux, the following code creates a vtk render window and a gtk widget containing it:
    vtkRenderWindow *render_win = vtkRenderWindow::New();
    GtkWidget *drawing_area = gtk_drawing_area_new();
    Display *disp = GDK_DISPLAY();
    render_win->SetDisplayId(disp);
followed eventually by
     XID wid = GDK_WINDOW_XID(drawing_area->window);
     render_win->SetWindowId(wid);
after receiving the gtk "realize" signal on the drawing_area.

On macOS, I'd like to use the Cocoa version of gtk+2 and vtkCocoaRenderWindow, but I can't figure out how to embed the render window into a gtk widget.    All the examples I've found on-line aren't really applicable.

GtkGLExt might be applicable, but it doesn't look like it's being maintained.

An alternative would be to use X11, but native Mac OpenGL doesn't understand X11, so I tried installing mesa from macports , rebuilding vtk with VTK_USE_X instead of VTK_USE_COCOA, and linking to /opt/local/lib instead of /System/Library/Frameworks/OpenGL.framework.  Then I can use the same code as on Linux, but vtk complains about the context not supporting OpenGL 3.2, and then crashes:
  ERROR: In /Users/langer/UTIL/VTK/VTK-7.1.1/Rendering/OpenGL2/vtkTextureObject.cxx, line 440
  vtkTextureObject (0x7f9eafdb1690): failed at glGenTextures 1 OpenGL errors detected
    0 : (1280) Invalid enum

Thanks,
     Steve
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Message: 3
Date: Tue, 14 Nov 2017 17:30:57 -0800
From: Kurt Sansom <kayarre at gmail.com>
To: vtk <vtkusers at vtk.org>
Subject: [vtkusers] Ensight Gold Binary Reader
Message-ID:
<CAHyF3ohbp0wfvxN9NCEhx_+yoNGpo33t+YXrypmTWAUqDHRYqg at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Hi,
  I am exporting fluent files to the ensight gold format, but I have determined that either the ensight Gold format only supports floats or that the vtk reader only supports reading into float arrays (single precision).

I  could not find information about ensight gold format (I did see ensight
6 and 5 mentioned not supporting double precision, bu no comment on ensight
gold)

I would like to know if I can create an vtkEnSightGoldBinaryDoubleReader that will read in double precision arrays, or if the ensight gold format doesn't support double precision.

Many thanks,
  VTK is so awesome. (especially the python bindings)

~Kurt

--
Kurt Sansom
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Message: 4
Date: Tue, 14 Nov 2017 23:58:50 -0700 (MST)
From: louiskoo <419655660 at qq.com>
To: vtkusers at vtk.org
Subject: [vtkusers] vtkDICOMImageReader will reverse using
ImagePositionPatient ?
Message-ID: <1510729130030-0.post at n5.nabble.com>
Content-Type: text/plain; charset=us-ascii

 vtkDICOMImageReader dicom_reader = vtkDICOMImageReader.New();
                dicom_reader.SetDirectoryName(dicom_folder);
                dicom_reader.Update();



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html


------------------------------

Message: 5
Date: Wed, 15 Nov 2017 11:26:11 +0100
From: Kolja Petersen <petersenkolja at gmail.com>
To: Ken Martin <ken.martin at kitware.com>
Cc: vtk <vtkusers at vtk.org>
Subject: Re: [vtkusers] TimerEvents not fired while dragging mouse in
vtkRenderWindow
Message-ID:
<CAPN39MXrHX2g6aA+Uob8+rA6kkLz6yOr9Na72YeeVtWiDvm5Kg at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

I replaced the line "iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)"
with
iren.AddObserver(vtk.vtkCommand.TimerEvent,observer,100000.) (also tried
10.0 instead of 100000.)

Still no TimerEvents are reported as long as the mouse button is pressed.

How are events consumed? My understanding is that AddObserver(...) adds just another listener, and that all listeners registered for a specific event are invoked one after the other. Which function would "consume"
events in an interactor style? Is it possible to circumvent the consuming of events, or to re-emit the event after it has been consumed?
Thank you
Kolja


On Tue, Nov 14, 2017 at 5:53 PM, Ken Martin <ken.martin at kitware.com> wrote:

> I suspect timer events are fired but something else is consuming them.
> Probably in the interactor style. Try adding your timer events with a
> higher priority like 10.0 (third argument).
>
> On Mon, Nov 13, 2017 at 3:21 PM, Kolja Petersen
> <petersenkolja at gmail.com>
> wrote:
>
>> Heya,
>> I paste some code below, which displays an empty vtkRenderWindow with
>> an interactor. The interactor fires a TimerEvent every 100ms as
>> printed by the Observer.
>> The problem: as long as I press a mouse button in the
>> vtkRenderWindow, the TimerEvents stop to be reported, although I need
>> to process data periodically in my application as a reaction to those TimerEvents.
>>
>> Why are no TimerEvents fired while a button is pressed, and how can I
>> change this behaviour?
>> Thank you
>> Kolja
>>
>> import vtk
>>
>> class Observer(object):
>>   def __init__(self):
>>     self.cnt=0
>>   def __call__(self,caller,evt):
>>     self.cnt+=1
>>     print "count %d %s" % (self.cnt,evt)
>>
>> ren1 = vtk.vtkRenderer()
>> ren1.SetBackground(0.1, 0.2, 0.4)
>>
>> renWin = vtk.vtkRenderWindow()
>> renWin.AddRenderer(ren1)
>> renWin.SetSize(300, 300)
>>
>> iren = vtk.vtkRenderWindowInteractor()
>> iren.SetRenderWindow(renWin)
>>
>> style = vtk.vtkInteractorStyleTrackballCamera()
>> iren.SetInteractorStyle(style)
>>
>> iren.Initialize()
>> observer=Observer()
>> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)
>> iren.AddObserver(vtk.vtkCommand.MouseMoveEvent,observer)
>> iren.AddObserver(vtk.vtkCommand.InteractionEvent,observer)
>> iren.CreateRepeatingTimer(100)
>> iren.Start()
>>
>>
>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virenfrei.
>> www.avast.com
>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm
>> _campaign=sig-email&utm_content=webmail>
>> <#m_-5995428116567439952_m_5020402281578617109_DAB4FAD8-2DD7-40BB-A1B
>> 8-4E2AA1F9FDF2>
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/vtkusers
>>
>>
>
>
> --
> Ken Martin PhD
> Distinguished Engineer
> Kitware Inc.
> 28 Corporate Drive
> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065&e
> ntry=gmail&source=g>
> Clifton Park NY 12065
> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065&e
> ntry=gmail&source=g>
>
> This communication, including all attachments, contains confidential
> and legally privileged information, and it is intended only for the
> use of the addressee.  Access to this email by anyone else is
> unauthorized. If you are not the intended recipient, any disclosure,
> copying, distribution or any action taken in reliance on it is
> prohibited and may be unlawful. If you received this communication in
> error please notify us immediately and destroy the original message.  Thank you.
>
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Message: 6
Date: Wed, 15 Nov 2017 19:17:11 +0800 (CST)
From: ??? <pengfeijia11 at sjtu.edu.cn>
To: vtkusers at vtk.org
Subject: [vtkusers] using vtkImageBlend to combine two gray image
Message-ID:
<928007308.11523911.1510744631970.JavaMail.zimbra at sjtu.edu.cn>
Content-Type: text/plain; charset=utf-8

Hi All:

? I have two gray images (vtkimagedata version),? they have the same size. I want to combine them together using vtkimageblend.

1st? the following are some codes:

?vtkSmartPointer<vtkImageBlend> imgBlender = vtkSmartPointer<vtkImageBlend>::New();
?imgBlender->SetOpacity( 0, 0.5);
?imgBlender->SetOpacity( 1, 0.5);
?imgBlender->AddInput(AP);
?imgBlender->AddInput( APdrr );

It seems that the result is wrong! the second is in the window, while the first seems not in the proper position, only part of it.

2nd?Then I adjust the opacity?
vtkSmartPointer<vtkImageBlend> imgBlender = vtkSmartPointer<vtkImageBlend>::New();
?imgBlender->SetOpacity( 0, 1);
?imgBlender->SetOpacity( 1, 1);
?imgBlender->AddInput(AP);
?imgBlender->AddInput( APdrr );

then the result only shows the second image, there is not the first image!

can someone give me some suggestions, thanks in advance!


------------------------------

Message: 7
Date: Wed, 15 Nov 2017 06:49:42 -0700 (MST)
From: landings <landinghere at 163.com>
To: vtkusers at vtk.org
Subject: [vtkusers] How to use unsigned char to represent cell types?
Message-ID: <1510753782836-0.post at n5.nabble.com>
Content-Type: text/plain; charset=us-ascii

I am using vtkUnstructuredGrid::SetCells() and I don't know what to fill into the cellTypes array.

By the way, do parameters *types and *cellTypes contain similar values?

-------------------------------------
void vtkUnstructuredGrid::SetCells ( int type, vtkCellArray * cells ) void vtkUnstructuredGrid::SetCells ( int * types, vtkCellArray * cells ) void vtkUnstructuredGrid::SetCells ( vtkUnsignedCharArray * cellTypes, vtkIdTypeArray * cellLocations, vtkCellArray * cells ) void vtkUnstructuredGrid::SetCells ( vtkUnsignedCharArray * cellTypes, vtkIdTypeArray * cellLocations, vtkCellArray * cells, vtkIdTypeArray * faceLocations, vtkIdTypeArray * faces )

Description:
-------------------------------------
Most cells require just arrays of cellTypes, cellLocations and cellConnectivities which implicitly define the set of points in each cell and their ordering. In those cases the cellConnectivities are of the format (numFace0Pts, id1, id2, id3, numFace1Pts, id1, id2, id3...). However, some cells like vtkPolyhedron require points plus a list of faces. To handle vtkPolyhedron, SetCells() support a special input cellConnectivities format (numCellFaces, numFace0Pts, id1, id2, id3, numFace1Pts,id1, id2, id3, ...) The functions use vtkPolyhedron::DecomposeAPolyhedronCell() to convert polyhedron cells into standard format.
-------------------------------------



--
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------------------------------

Message: 8
Date: Wed, 15 Nov 2017 11:25:07 -0500
From: David Cole <DLRdave at aol.com>
To: Kolja Petersen <petersenkolja at gmail.com>
Cc: vtk <vtkusers at vtk.org>
Subject: Re: [vtkusers] TimerEvents not fired while dragging mouse in
vtkRenderWindow
Message-ID: <C27C3C2E-0457-46BD-894B-017AC0A77A81 at aol.com>
Content-Type: text/plain; charset="us-ascii"

Is this on Windows? WM_TIMER events are notorious for not firing frequently when lots of other user events are also happening. If the mouse is captured, they may not fire at all. This is not something unique to VTK, it happens with just any Windows program.

You may need to consider redesigning a bit of your app if you must have code being executed regularly even during user interactions.


David

> On Nov 15, 2017, at 5:26 AM, Kolja Petersen <petersenkolja at gmail.com> wrote:
>
> I replaced the line
> "iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)" with
> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer,100000.) (also
> tried 10.0 instead of 100000.)
>
> Still no TimerEvents are reported as long as the mouse button is pressed.
>
> How are events consumed? My understanding is that AddObserver(...) adds just another listener, and that all listeners registered for a specific event are invoked one after the other. Which function would "consume" events in an interactor style? Is it possible to circumvent the consuming of events, or to re-emit the event after it has been consumed?
> Thank you
> Kolja
>
>
>> On Tue, Nov 14, 2017 at 5:53 PM, Ken Martin <ken.martin at kitware.com> wrote:
>> I suspect timer events are fired but something else is consuming them. Probably in the interactor style. Try adding your timer events with a higher priority like 10.0 (third argument).
>>
>>> On Mon, Nov 13, 2017 at 3:21 PM, Kolja Petersen <petersenkolja at gmail.com> wrote:
>>> Heya,
>>> I paste some code below, which displays an empty vtkRenderWindow with an interactor. The interactor fires a TimerEvent every 100ms as printed by the Observer.
>>> The problem: as long as I press a mouse button in the vtkRenderWindow, the TimerEvents stop to be reported, although I need to process data periodically in my application as a reaction to those TimerEvents.
>>>
>>> Why are no TimerEvents fired while a button is pressed, and how can I change this behaviour?
>>> Thank you
>>> Kolja
>>>
>>> import vtk
>>>
>>> class Observer(object):
>>>   def __init__(self):
>>>     self.cnt=0
>>>   def __call__(self,caller,evt):
>>>     self.cnt+=1
>>>     print "count %d %s" % (self.cnt,evt)
>>>
>>> ren1 = vtk.vtkRenderer()
>>> ren1.SetBackground(0.1, 0.2, 0.4)
>>>
>>> renWin = vtk.vtkRenderWindow()
>>> renWin.AddRenderer(ren1)
>>> renWin.SetSize(300, 300)
>>>
>>> iren = vtk.vtkRenderWindowInteractor()
>>> iren.SetRenderWindow(renWin)
>>>
>>> style = vtk.vtkInteractorStyleTrackballCamera()
>>> iren.SetInteractorStyle(style)
>>>
>>> iren.Initialize()
>>> observer=Observer()
>>> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)
>>> iren.AddObserver(vtk.vtkCommand.MouseMoveEvent,observer)
>>> iren.AddObserver(vtk.vtkCommand.InteractionEvent,observer)
>>> iren.CreateRepeatingTimer(100)
>>> iren.Start()
>>>
>>> Virenfrei. www.avast.com
>>>
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the VTK FAQ at:
>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>
>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> http://public.kitware.com/mailman/listinfo/vtkusers
>>>
>>
>>
>>
>> --
>> Ken Martin PhD
>> Distinguished Engineer
>> Kitware Inc.
>> 28 Corporate Drive
>> Clifton Park NY 12065
>>
>> This communication, including all attachments, contains confidential and legally privileged information, and it is intended only for the use of the addressee.  Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken in reliance on it is prohibited and may be unlawful. If you received this communication in error please notify us immediately and destroy the original message.  Thank you.
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
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Message: 9
Date: Wed, 15 Nov 2017 17:42:55 +0100
From: Kolja Petersen <petersenkolja at gmail.com>
To: David Cole <DLRdave at aol.com>
Cc: vtk <vtkusers at vtk.org>
Subject: Re: [vtkusers] TimerEvents not fired while dragging mouse in
vtkRenderWindow
Message-ID:
<CAPN39MWeJN6j9yY84kObvFLGGUEEez=XU7k7RvLEyVJv7+cVZg at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

No, this is on Linux. Maybe you can try the code snippet yourself to see what I am talking about? The problem is not, that the TimerEvents are slowed down during mouse interaction, they are dropped completely.

How can the app be redesigned?
First, I need the standard behaviour of vtkRenderWindowInteractor to allow rotating, zooming, panning.
Second I need to update and redraw the scene repeatedly in constant intervals. Of course, I could trigger these events independent from VTK using a second thread. But these events need to operate on VTK objects from the main thread. Because VTK is not thread safe (which I have experienced by a number of segmentation faults when modifying VTK objects from different threads), I see absolutely no way to correctly process both 1) timer events and 2) user interaction events that block the timer events.
Kolja

<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
Virenfrei.
www.avast.com
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

On Wed, Nov 15, 2017 at 5:25 PM, David Cole <DLRdave at aol.com> wrote:

> Is this on Windows? WM_TIMER events are notorious for not firing
> frequently when lots of other user events are also happening. If the
> mouse is captured, they may not fire at all. This is not something
> unique to VTK, it happens with just any Windows program.
>
> You may need to consider redesigning a bit of your app if you must
> have code being executed regularly even during user interactions.
>
>
> David
>
> On Nov 15, 2017, at 5:26 AM, Kolja Petersen <petersenkolja at gmail.com>
> wrote:
>
> I replaced the line "iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)"
> with
> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer,100000.) (also
> tried
> 10.0 instead of 100000.)
>
> Still no TimerEvents are reported as long as the mouse button is pressed.
>
> How are events consumed? My understanding is that AddObserver(...)
> adds just another listener, and that all listeners registered for a
> specific event are invoked one after the other. Which function would "consume"
> events in an interactor style? Is it possible to circumvent the
> consuming of events, or to re-emit the event after it has been consumed?
> Thank you
> Kolja
>
>
> On Tue, Nov 14, 2017 at 5:53 PM, Ken Martin <ken.martin at kitware.com>
> wrote:
>
>> I suspect timer events are fired but something else is consuming them.
>> Probably in the interactor style. Try adding your timer events with a
>> higher priority like 10.0 (third argument).
>>
>> On Mon, Nov 13, 2017 at 3:21 PM, Kolja Petersen
>> <petersenkolja at gmail.com>
>> wrote:
>>
>>> Heya,
>>> I paste some code below, which displays an empty vtkRenderWindow
>>> with an interactor. The interactor fires a TimerEvent every 100ms as
>>> printed by the Observer.
>>> The problem: as long as I press a mouse button in the
>>> vtkRenderWindow, the TimerEvents stop to be reported, although I
>>> need to process data periodically in my application as a reaction to those TimerEvents.
>>>
>>> Why are no TimerEvents fired while a button is pressed, and how can
>>> I change this behaviour?
>>> Thank you
>>> Kolja
>>>
>>> import vtk
>>>
>>> class Observer(object):
>>>   def __init__(self):
>>>     self.cnt=0
>>>   def __call__(self,caller,evt):
>>>     self.cnt+=1
>>>     print "count %d %s" % (self.cnt,evt)
>>>
>>> ren1 = vtk.vtkRenderer()
>>> ren1.SetBackground(0.1, 0.2, 0.4)
>>>
>>> renWin = vtk.vtkRenderWindow()
>>> renWin.AddRenderer(ren1)
>>> renWin.SetSize(300, 300)
>>>
>>> iren = vtk.vtkRenderWindowInteractor()
>>> iren.SetRenderWindow(renWin)
>>>
>>> style = vtk.vtkInteractorStyleTrackballCamera()
>>> iren.SetInteractorStyle(style)
>>>
>>> iren.Initialize()
>>> observer=Observer()
>>> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)
>>> iren.AddObserver(vtk.vtkCommand.MouseMoveEvent,observer)
>>> iren.AddObserver(vtk.vtkCommand.InteractionEvent,observer)
>>> iren.CreateRepeatingTimer(100)
>>> iren.Start()
>>>
>>>
>>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virenfrei.
>>> www.avast.com
>>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&ut
>>> m_campaign=sig-email&utm_content=webmail>
>>> <#m_-7045443072964375499_m_-5995428116567439952_m_502040228157861710
>>> 9_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>>
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the VTK FAQ at:
>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>
>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> http://public.kitware.com/mailman/listinfo/vtkusers
>>>
>>>
>>
>>
>> --
>> Ken Martin PhD
>> Distinguished Engineer
>> Kitware Inc.
>> 28 Corporate Drive
>> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065&
>> entry=gmail&source=g>
>> Clifton Park NY 12065
>> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065&
>> entry=gmail&source=g>
>>
>> This communication, including all attachments, contains confidential
>> and legally privileged information, and it is intended only for the
>> use of the addressee.  Access to this email by anyone else is
>> unauthorized. If you are not the intended recipient, any disclosure,
>> copying, distribution or any action taken in reliance on it is
>> prohibited and may be unlawful. If you received this communication in
>> error please notify us immediately and destroy the original message.  Thank you.
>>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>
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Message: 10
Date: Wed, 15 Nov 2017 11:48:24 -0500
From: Ken Martin <ken.martin at kitware.com>
To: Kolja Petersen <petersenkolja at gmail.com>
Cc: vtk <vtkusers at vtk.org>
Subject: Re: [vtkusers] TimerEvents not fired while dragging mouse in
vtkRenderWindow
Message-ID:
<CANXz0SZUXyqffmwG4TM3sJw+vuwuARL14mR+TXfkMcciXrjW8g at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

The interactor style may be doing a grab focus (which grabs all events until the motion is done). Try putting some  printfs/breaks in the code that generates the timerevent in vtk. Then maybe you can follow the event and see who is consuming it etc,.

Or try commenting out all the GrabFocus() calls in the style you are using.

On Wed, Nov 15, 2017 at 11:42 AM, Kolja Petersen <petersenkolja at gmail.com>
wrote:

> No, this is on Linux. Maybe you can try the code snippet yourself to
> see what I am talking about? The problem is not, that the TimerEvents
> are slowed down during mouse interaction, they are dropped completely.
>
> How can the app be redesigned?
> First, I need the standard behaviour of vtkRenderWindowInteractor to
> allow rotating, zooming, panning.
> Second I need to update and redraw the scene repeatedly in constant
> intervals. Of course, I could trigger these events independent from
> VTK using a second thread. But these events need to operate on VTK
> objects from the main thread. Because VTK is not thread safe (which I
> have experienced by a number of segmentation faults when modifying VTK
> objects from different threads), I see absolutely no way to correctly
> process both 1) timer events and 2) user interaction events that block the timer events.
> Kolja
>
>
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virenfrei.
> www.avast.com
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_
> campaign=sig-email&utm_content=webmail>
> <#m_869865242780024731_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>
> On Wed, Nov 15, 2017 at 5:25 PM, David Cole <DLRdave at aol.com> wrote:
>
>> Is this on Windows? WM_TIMER events are notorious for not firing
>> frequently when lots of other user events are also happening. If the
>> mouse is captured, they may not fire at all. This is not something
>> unique to VTK, it happens with just any Windows program.
>>
>> You may need to consider redesigning a bit of your app if you must
>> have code being executed regularly even during user interactions.
>>
>>
>> David
>>
>> On Nov 15, 2017, at 5:26 AM, Kolja Petersen <petersenkolja at gmail.com>
>> wrote:
>>
>> I replaced the line "iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)"
>> with
>> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer,100000.) (also
>> tried
>> 10.0 instead of 100000.)
>>
>> Still no TimerEvents are reported as long as the mouse button is pressed.
>>
>> How are events consumed? My understanding is that AddObserver(...)
>> adds just another listener, and that all listeners registered for a
>> specific event are invoked one after the other. Which function would "consume"
>> events in an interactor style? Is it possible to circumvent the
>> consuming of events, or to re-emit the event after it has been consumed?
>> Thank you
>> Kolja
>>
>>
>> On Tue, Nov 14, 2017 at 5:53 PM, Ken Martin <ken.martin at kitware.com>
>> wrote:
>>
>>> I suspect timer events are fired but something else is consuming them.
>>> Probably in the interactor style. Try adding your timer events with
>>> a higher priority like 10.0 (third argument).
>>>
>>> On Mon, Nov 13, 2017 at 3:21 PM, Kolja Petersen
>>> <petersenkolja at gmail.com
>>> > wrote:
>>>
>>>> Heya,
>>>> I paste some code below, which displays an empty vtkRenderWindow
>>>> with an interactor. The interactor fires a TimerEvent every 100ms
>>>> as printed by the Observer.
>>>> The problem: as long as I press a mouse button in the
>>>> vtkRenderWindow, the TimerEvents stop to be reported, although I
>>>> need to process data periodically in my application as a reaction to those TimerEvents.
>>>>
>>>> Why are no TimerEvents fired while a button is pressed, and how can
>>>> I change this behaviour?
>>>> Thank you
>>>> Kolja
>>>>
>>>> import vtk
>>>>
>>>> class Observer(object):
>>>>   def __init__(self):
>>>>     self.cnt=0
>>>>   def __call__(self,caller,evt):
>>>>     self.cnt+=1
>>>>     print "count %d %s" % (self.cnt,evt)
>>>>
>>>> ren1 = vtk.vtkRenderer()
>>>> ren1.SetBackground(0.1, 0.2, 0.4)
>>>>
>>>> renWin = vtk.vtkRenderWindow()
>>>> renWin.AddRenderer(ren1)
>>>> renWin.SetSize(300, 300)
>>>>
>>>> iren = vtk.vtkRenderWindowInteractor()
>>>> iren.SetRenderWindow(renWin)
>>>>
>>>> style = vtk.vtkInteractorStyleTrackballCamera()
>>>> iren.SetInteractorStyle(style)
>>>>
>>>> iren.Initialize()
>>>> observer=Observer()
>>>> iren.AddObserver(vtk.vtkCommand.TimerEvent,observer)
>>>> iren.AddObserver(vtk.vtkCommand.MouseMoveEvent,observer)
>>>> iren.AddObserver(vtk.vtkCommand.InteractionEvent,observer)
>>>> iren.CreateRepeatingTimer(100)
>>>> iren.Start()
>>>>
>>>>
>>>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virenfrei.
>>>> www.avast.com
>>>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&u
>>>> tm_campaign=sig-email&utm_content=webmail>
>>>> <#m_869865242780024731_m_-7045443072964375499_m_-599542811656743995
>>>> 2_m_5020402281578617109_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>>>
>>>> _______________________________________________
>>>> Powered by www.kitware.com
>>>>
>>>> Visit other Kitware open-source projects at
>>>> http://www.kitware.com/opensource/opensource.html
>>>>
>>>> Please keep messages on-topic and check the VTK FAQ at:
>>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>>
>>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>>
>>>> Follow this link to subscribe/unsubscribe:
>>>> http://public.kitware.com/mailman/listinfo/vtkusers
>>>>
>>>>
>>>
>>>
>>> --
>>> Ken Martin PhD
>>> Distinguished Engineer
>>> Kitware Inc.
>>> 28 Corporate Drive
>>> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065
>>> &entry=gmail&source=g>
>>> Clifton Park NY 12065
>>> <https://maps.google.com/?q=28+Corporate+Drive+Clifton+Park+NY+12065
>>> &entry=gmail&source=g>
>>>
>>> This communication, including all attachments, contains confidential
>>> and legally privileged information, and it is intended only for the
>>> use of the addressee.  Access to this email by anyone else is
>>> unauthorized. If you are not the intended recipient, any disclosure,
>>> copying, distribution or any action taken in reliance on it is
>>> prohibited and may be unlawful. If you received this communication
>>> in error please notify us immediately and destroy the original message.  Thank you.
>>>
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/vtkusers
>>
>>
>


--
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and legally privileged information, and it is intended only for the use of the addressee.  Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken in reliance on it is prohibited and may be unlawful. If you received this communication in error please notify us immediately and destroy the original message.  Thank you.
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From goodwin.lawlor.lists at gmail.com  Wed Nov 15 15:58:10 2017
From: goodwin.lawlor.lists at gmail.com (Goodwin Lawlor)
Date: Wed, 15 Nov 2017 20:58:10 +0000
Subject: [vtkusers] vtkbioeng for vtk7.1.1 ?
In-Reply-To: <1510664968533-0.post@n5.nabble.com>
References: <1510664968533-0.post@n5.nabble.com>
Message-ID: <CAEAdmCbi-DVbRio=r81BAC2qYNyN4Fj3Zz7jcO9UM-kQi9ghzg@mail.gmail.com>

Hi Daniel,

I'll update the vtkbioeng repo on github.

Hi Andras,

Thanks for the heads up on the SlicerRT version.

It's been mentioned before to add the collision detection class to VTK but
I think it more likely to work as an external module.

Goodwin

On Tue, Nov 14, 2017 at 1:09 PM, -Daniel- <ich_daniel at habmalnefrage.de>
wrote:

> Hi there,
>
> I would like to use vtkbioeng with vtk7.1.1, but apparently this is no
> longer supported. Only up to version 6? Or is there already a solution for
> that?
> I'm particularly interested in collision detection.
>
> Every hint is welcome!
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
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From bill.lorensen at gmail.com  Wed Nov 15 17:48:52 2017
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Wed, 15 Nov 2017 17:48:52 -0500
Subject: [vtkusers] vtkbioeng for vtk7.1.1 ?
In-Reply-To: <CAEAdmCbi-DVbRio=r81BAC2qYNyN4Fj3Zz7jcO9UM-kQi9ghzg@mail.gmail.com>
References: <1510664968533-0.post@n5.nabble.com>
 <CAEAdmCbi-DVbRio=r81BAC2qYNyN4Fj3Zz7jcO9UM-kQi9ghzg@mail.gmail.com>
Message-ID: <CADZJ4hNw6rehZfG_LGyyzs2hYxXWC_NGVGZq-AANQ4xJYOgQQw@mail.gmail.com>

The copyright is not here:
http://www.bioengineering-research.com/copyright.html


On Wed, Nov 15, 2017 at 3:58 PM, Goodwin Lawlor
<goodwin.lawlor.lists at gmail.com> wrote:
> Hi Daniel,
>
> I'll update the vtkbioeng repo on github.
>
> Hi Andras,
>
> Thanks for the heads up on the SlicerRT version.
>
> It's been mentioned before to add the collision detection class to VTK but I
> think it more likely to work as an external module.
>
> Goodwin
>
> On Tue, Nov 14, 2017 at 1:09 PM, -Daniel- <ich_daniel at habmalnefrage.de>
> wrote:
>>
>> Hi there,
>>
>> I would like to use vtkbioeng with vtk7.1.1, but apparently this is no
>> longer supported. Only up to version 6? Or is there already a solution for
>> that?
>> I'm particularly interested in collision detection.
>>
>> Every hint is welcome!
>>
>>
>>
>> --
>> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/vtkusers
>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



-- 
Unpaid intern in BillsBasement at noware dot com

From goodwin.lawlor.lists at gmail.com  Wed Nov 15 18:04:09 2017
From: goodwin.lawlor.lists at gmail.com (Goodwin Lawlor)
Date: Wed, 15 Nov 2017 23:04:09 +0000
Subject: [vtkusers] vtkbioeng for vtk7.1.1 ?
In-Reply-To: <CADZJ4hNw6rehZfG_LGyyzs2hYxXWC_NGVGZq-AANQ4xJYOgQQw@mail.gmail.com>
References: <1510664968533-0.post@n5.nabble.com>
 <CAEAdmCbi-DVbRio=r81BAC2qYNyN4Fj3Zz7jcO9UM-kQi9ghzg@mail.gmail.com>
 <CADZJ4hNw6rehZfG_LGyyzs2hYxXWC_NGVGZq-AANQ4xJYOgQQw@mail.gmail.com>
Message-ID: <CAEAdmCY+RY+4y-dWeEnZ9PXgRo6VauOkAz1eg1EVz02r5dsy0A@mail.gmail.com>

Thanks Bill - that page used to contain the usual VTK BSD licence.

It should point here now:
https://github.com/glawlor/vtkbioeng/blob/master/LICENSE.md

which is the BSD 2 clause boilerplate licence Github provides.

I'll update that too while I'm at it

Goodwin

On Wednesday, November 15, 2017, Bill Lorensen <bill.lorensen at gmail.com>
wrote:

> The copyright is not here:
> http://www.bioengineering-research.com/copyright.html
>
>
> On Wed, Nov 15, 2017 at 3:58 PM, Goodwin Lawlor
> <goodwin.lawlor.lists at gmail.com <javascript:;>> wrote:
> > Hi Daniel,
> >
> > I'll update the vtkbioeng repo on github.
> >
> > Hi Andras,
> >
> > Thanks for the heads up on the SlicerRT version.
> >
> > It's been mentioned before to add the collision detection class to VTK
> but I
> > think it more likely to work as an external module.
> >
> > Goodwin
> >
> > On Tue, Nov 14, 2017 at 1:09 PM, -Daniel- <ich_daniel at habmalnefrage.de
> <javascript:;>>
> > wrote:
> >>
> >> Hi there,
> >>
> >> I would like to use vtkbioeng with vtk7.1.1, but apparently this is no
> >> longer supported. Only up to version 6? Or is there already a solution
> for
> >> that?
> >> I'm particularly interested in collision detection.
> >>
> >> Every hint is welcome!
> >>
> >>
> >>
> >> --
> >> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> >> _______________________________________________
> >> Powered by www.kitware.com
> >>
> >> Visit other Kitware open-source projects at
> >> http://www.kitware.com/opensource/opensource.html
> >>
> >> Please keep messages on-topic and check the VTK FAQ at:
> >> http://www.vtk.org/Wiki/VTK_FAQ
> >>
> >> Search the list archives at: http://markmail.org/search/?q=vtkusers
> >>
> >> Follow this link to subscribe/unsubscribe:
> >> http://public.kitware.com/mailman/listinfo/vtkusers
> >
> >
> >
> > _______________________________________________
> > Powered by www.kitware.com
> >
> > Visit other Kitware open-source projects at
> > http://www.kitware.com/opensource/opensource.html
> >
> > Please keep messages on-topic and check the VTK FAQ at:
> > http://www.vtk.org/Wiki/VTK_FAQ
> >
> > Search the list archives at: http://markmail.org/search/?q=vtkusers
> >
> > Follow this link to subscribe/unsubscribe:
> > http://public.kitware.com/mailman/listinfo/vtkusers
> >
>
>
>
> --
> Unpaid intern in BillsBasement at noware dot com
>
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From bill.lorensen at gmail.com  Wed Nov 15 18:12:53 2017
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Wed, 15 Nov 2017 18:12:53 -0500
Subject: [vtkusers] vtkbioeng for vtk7.1.1 ?
In-Reply-To: <CAEAdmCY+RY+4y-dWeEnZ9PXgRo6VauOkAz1eg1EVz02r5dsy0A@mail.gmail.com>
References: <1510664968533-0.post@n5.nabble.com>
 <CAEAdmCbi-DVbRio=r81BAC2qYNyN4Fj3Zz7jcO9UM-kQi9ghzg@mail.gmail.com>
 <CADZJ4hNw6rehZfG_LGyyzs2hYxXWC_NGVGZq-AANQ4xJYOgQQw@mail.gmail.com>
 <CAEAdmCY+RY+4y-dWeEnZ9PXgRo6VauOkAz1eg1EVz02r5dsy0A@mail.gmail.com>
Message-ID: <CADZJ4hMb6roVPyPkrJgvg+sR=ar+PFGf2XWxoLP0tJACtyDUeg@mail.gmail.com>

License looks good to me.

I agree that the suite might be a good remote module. The bar is a
little lower than integrating into VTK proper.

Bill


On Wed, Nov 15, 2017 at 6:04 PM, Goodwin Lawlor
<goodwin.lawlor.lists at gmail.com> wrote:
> Thanks Bill - that page used to contain the usual VTK BSD licence.
>
> It should point here now:
> https://github.com/glawlor/vtkbioeng/blob/master/LICENSE.md
>
> which is the BSD 2 clause boilerplate licence Github provides.
>
> I'll update that too while I'm at it
>
> Goodwin
>
> On Wednesday, November 15, 2017, Bill Lorensen <bill.lorensen at gmail.com>
> wrote:
>>
>> The copyright is not here:
>> http://www.bioengineering-research.com/copyright.html
>>
>>
>> On Wed, Nov 15, 2017 at 3:58 PM, Goodwin Lawlor
>> <goodwin.lawlor.lists at gmail.com> wrote:
>> > Hi Daniel,
>> >
>> > I'll update the vtkbioeng repo on github.
>> >
>> > Hi Andras,
>> >
>> > Thanks for the heads up on the SlicerRT version.
>> >
>> > It's been mentioned before to add the collision detection class to VTK
>> > but I
>> > think it more likely to work as an external module.
>> >
>> > Goodwin
>> >
>> > On Tue, Nov 14, 2017 at 1:09 PM, -Daniel- <ich_daniel at habmalnefrage.de>
>> > wrote:
>> >>
>> >> Hi there,
>> >>
>> >> I would like to use vtkbioeng with vtk7.1.1, but apparently this is no
>> >> longer supported. Only up to version 6? Or is there already a solution
>> >> for
>> >> that?
>> >> I'm particularly interested in collision detection.
>> >>
>> >> Every hint is welcome!
>> >>
>> >>
>> >>
>> >> --
>> >> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
>> >> _______________________________________________
>> >> Powered by www.kitware.com
>> >>
>> >> Visit other Kitware open-source projects at
>> >> http://www.kitware.com/opensource/opensource.html
>> >>
>> >> Please keep messages on-topic and check the VTK FAQ at:
>> >> http://www.vtk.org/Wiki/VTK_FAQ
>> >>
>> >> Search the list archives at: http://markmail.org/search/?q=vtkusers
>> >>
>> >> Follow this link to subscribe/unsubscribe:
>> >> http://public.kitware.com/mailman/listinfo/vtkusers
>> >
>> >
>> >
>> > _______________________________________________
>> > Powered by www.kitware.com
>> >
>> > Visit other Kitware open-source projects at
>> > http://www.kitware.com/opensource/opensource.html
>> >
>> > Please keep messages on-topic and check the VTK FAQ at:
>> > http://www.vtk.org/Wiki/VTK_FAQ
>> >
>> > Search the list archives at: http://markmail.org/search/?q=vtkusers
>> >
>> > Follow this link to subscribe/unsubscribe:
>> > http://public.kitware.com/mailman/listinfo/vtkusers
>> >
>>
>>
>>
>> --
>> Unpaid intern in BillsBasement at noware dot com



-- 
Unpaid intern in BillsBasement at noware dot com

From andrew.amaclean at gmail.com  Wed Nov 15 23:25:45 2017
From: andrew.amaclean at gmail.com (Andrew Maclean)
Date: Thu, 16 Nov 2017 15:25:45 +1100
Subject: [vtkusers]
	=?utf-8?q?=E2=80=8BSetClientData_in_python_=28David_Go?=
	=?utf-8?q?bbi=29?=
Message-ID: <CAHDsG9POnX3cmAJrq+39Niukx46SEPj3s1xpC+fXPWWc4LW-QA@mail.gmail.com>

Hi,

As promised, I did an example, please see:
https://lorensen.github.io/VTKExamples/site/Python/Interaction/CallBack/
and
 https://lorensen.github.io/VTKExamples/site/Cxx/Interaction/CallBack/

Also look at:
https://lorensen.github.io/VTKExamples/site/Python/VisualizationAlgorithms/
StreamlinesWithLineWidget/

Thanks to Bill Lorensen for some solving markdown issues in the case of
CallBack.

Please feel free to improve/correct the examples.

Regards
   Andrew


On Mon, Nov 13, 2017 at 1:26 AM, Oliver Natt <onatt at gmx.de> wrote:

> Dear Andrew,
>
> Davids proposal ist great. However, it appears a bit strange to most
> programmers. I prefer for this purpose to make a new class which is a
> callable. I think, this makes the code more readable for most programmers
> since the data attribute is already initialized within the class itself.
> Your example would look like this:
>
> class DummyCallback:
>     def __init__(self, data):
>         self.data = data
>     def __call__(self, obj, event):
>         print(ev, self.data)
>
> cb = DummyCallback(renwin)
> interactor.AddObserver('LeftButtonPressEvent', cb)
>
> The last two lines can, of course, be abbreviated to:
> interactor.AddObserver('LeftButtonPressEvent', DummyCallback(renwin))
>
> Best regards
> Oliver
>
>
> Am 11.11.2017 um 23:46 schrieb Andrew Maclean:
>
> Ok
> I have got it.
> This works:
>
> def DummyFunc(obj, ev):
>     print(ev, DummyFunc.data)
>
> DummyFunc.data = renwin# How do I pass my obj_2 ?interactor.AddObserver('LeftButtonPressEvent', DummyFunc)
>
>
> ?David, you may be able to explain this better than I can but I assume
> this is what happens:?
>     Here we are adding a new attribute to DummyFunc. We can do this
> because Python functions are in fact objects.
>
> ?This is something totally strange to C++ programmers!
>
> What a neat approach!?
>
>
>
> --
> Oliver Natt,
>
> J?gerstra?e 26b
> 90451 N?rnberg
>
> Phone:   +49 (0)  9 11 - 71 58 71 40
> Mobile   +49 (0)  1 76 - 20 82 27 38
> E-Mail:  onatt at gmx.de
>
>


-- 
___________________________________________
Andrew J. P. Maclean

___________________________________________
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From landinghere at 163.com  Wed Nov 15 23:30:43 2017
From: landinghere at 163.com (landings)
Date: Wed, 15 Nov 2017 21:30:43 -0700 (MST)
Subject: [vtkusers] Can vtkDataObject be downcasted to vtkUnstructuredGrid?
Message-ID: <1510806643314-0.post@n5.nabble.com>

Hi,

I am writing a reader that outputs an unstructured solid mesh. 

I am referring to vtkSTLReader, in its RequestData() method I can see the
following code:

    vtkInformation *outInfo = outputVector->GetInformationObject(0);
    vtkPolyData *output =
vtkPolyData::SafeDownCast(outInfo->Get(vtkDataObject::DATA_OBJECT()));

But when I do similar things:

    vtkInformation* outInfo = outputVector->GetInformationObject(0);
    vtkUnstructuredGrid *output =
vtkUnstructuredGrid::SafeDownCast(outInfo->Get(vtkDataObject::DATA_OBJECT()));

I get a nullptr for output. I am sure
outInfo->Get(vtkDataObject::DATA_OBJECT()) exists before downcasting.



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From mathieu.westphal at kitware.com  Thu Nov 16 03:41:57 2017
From: mathieu.westphal at kitware.com (Mathieu Westphal)
Date: Thu, 16 Nov 2017 09:41:57 +0100
Subject: [vtkusers] Can vtkDataObject be downcasted to
	vtkUnstructuredGrid?
In-Reply-To: <1510806643314-0.post@n5.nabble.com>
References: <1510806643314-0.post@n5.nabble.com>
Message-ID: <CAC2t4UROC01MZqSf9ghewXHZXdOZb3aB3shgZp9CMEesOwiDuQ@mail.gmail.com>

Hello

For the cast to work, the object need to be of the right type. If the
output is a vtkPolyData, it cannot be a vtkUnstructuredGrid.
Take a look at the polymorphism here.

https://www.vtk.org/doc/nightly/html/classvtkDataSet.html

Best,

Mathieu Westphal

On Thu, Nov 16, 2017 at 5:30 AM, landings <landinghere at 163.com> wrote:

> Hi,
>
> I am writing a reader that outputs an unstructured solid mesh.
>
> I am referring to vtkSTLReader, in its RequestData() method I can see the
> following code:
>
>     vtkInformation *outInfo = outputVector->GetInformationObject(0);
>     vtkPolyData *output =
> vtkPolyData::SafeDownCast(outInfo->Get(vtkDataObject::DATA_OBJECT()));
>
> But when I do similar things:
>
>     vtkInformation* outInfo = outputVector->GetInformationObject(0);
>     vtkUnstructuredGrid *output =
> vtkUnstructuredGrid::SafeDownCast(outInfo->Get(
> vtkDataObject::DATA_OBJECT()));
>
> I get a nullptr for output. I am sure
> outInfo->Get(vtkDataObject::DATA_OBJECT()) exists before downcasting.
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
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From paul.melis at surfsara.nl  Thu Nov 16 04:20:44 2017
From: paul.melis at surfsara.nl (Paul Melis)
Date: Thu, 16 Nov 2017 10:20:44 +0100
Subject: [vtkusers] vtkXdmf3Writer index precision
Message-ID: <f6beb103-988a-ca65-d74c-b99bdf1f5e2f@surfsara.nl>

Hi,

Is there a way to specify the integer precision of polydata index arrays 
when using the Xdmf3 writer? For me, it's currently writing out indices 
in 64 bits, which is a bit wasteful given the number of vertices:

<?xml version="1.0" encoding="utf-8"?>
<Xdmf xmlns:xi="http://www.w3.org/2001/XInclude" Version="3.3">
   <Domain>
     <Grid Name="Grid">
       <Geometry Origin="" Type="XYZ">
         <DataItem DataType="Float" Dimensions="39010488 3" Format="HDF" 
Precision="4">region-rbc-9.h5:Data2</DataItem>
       </Geometry>
       <Topology Dimensions="77777920" Type="Mixed">
         <DataItem DataType="Int" Dimensions="311111680" Format="HDF" 
Precision="8">region-rbc-9.h5:Data3</DataItem>
       </Topology>
     </Grid>
   </Domain>
</Xdmf>

Or is the output precision of (most) VTK writers fully determined by the 
compiled-in ID type?

Thanks,
Paul

-- 

Paul Melis
| Visualization group leader & developer | SURFsara |
| Science Park 140 | 1098 XG Amsterdam |
| T 020 800 1312 | paul.melis at surfsara.nl | www.surfsara.nl |

From chandan.yeshwanth at siemens.com  Thu Nov 16 04:30:46 2017
From: chandan.yeshwanth at siemens.com (Yeshwanth, Chandan)
Date: Thu, 16 Nov 2017 09:30:46 +0000
Subject: [vtkusers] Shadows with VTK 8.0
Message-ID: <SG2PR06MB085579BFA180309AD16404C8FD2E0@SG2PR06MB0855.apcprd06.prod.outlook.com>

Hi,

Can anyone help me implement shadow mapping with VTK 8.0?
The existing example here - https://lorensen.github.io/VTKExamples/site/Cxx/Visualization/Shadows/ gives this error -
AttributeError: 'vtkRenderingOpenGL2Python.vtkShadowMapBakerPass' object has no attribute 'SetOpaquePass'

Has the API changed from 5.10 to 8? A minimum working example of shadows in VTK 8 or a summary of the API changes will be great!

Thanks,
Chandan
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From sur.chiranjib at gmail.com  Thu Nov 16 04:40:03 2017
From: sur.chiranjib at gmail.com (Chiranjib Sur)
Date: Thu, 16 Nov 2017 15:10:03 +0530
Subject: [vtkusers] Shadows with VTK 8.0
In-Reply-To: <SG2PR06MB085579BFA180309AD16404C8FD2E0@SG2PR06MB0855.apcprd06.prod.outlook.com>
References: <SG2PR06MB085579BFA180309AD16404C8FD2E0@SG2PR06MB0855.apcprd06.prod.outlook.com>
Message-ID: <CAJk8dSCOsMVAYF+tO6cX-hfhAzfC+Q4X=6D65-YNpVqQ_oBfwA@mail.gmail.com>

This wiki link gives you the details of the API changes in VTK development
: https://www.vtk.org/Wiki/VTK/Roadmap

Hope that helps


Thanks and regards,
Chiranjib

On Thu, Nov 16, 2017 at 3:00 PM, Yeshwanth, Chandan <
chandan.yeshwanth at siemens.com> wrote:

> Hi,
>
>
>
> Can anyone help me implement shadow mapping with VTK 8.0?
>
> The existing example here - https://lorensen.github.io/
> VTKExamples/site/Cxx/Visualization/Shadows/ gives this error ?
>
> AttributeError: 'vtkRenderingOpenGL2Python.vtkShadowMapBakerPass' object
> has no attribute 'SetOpaquePass'
>
>
>
> Has the API changed from 5.10 to 8? A minimum working example of shadows
> in VTK 8 or a summary of the API changes will be great!
>
>
>
> Thanks,
>
> Chandan
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>
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From goodwin.lawlor.lists at gmail.com  Thu Nov 16 07:09:32 2017
From: goodwin.lawlor.lists at gmail.com (Goodwin Lawlor)
Date: Thu, 16 Nov 2017 12:09:32 +0000
Subject: [vtkusers] vtkbioeng for vtk7.1.1 ?
In-Reply-To: <CADZJ4hMb6roVPyPkrJgvg+sR=ar+PFGf2XWxoLP0tJACtyDUeg@mail.gmail.com>
References: <1510664968533-0.post@n5.nabble.com>
 <CAEAdmCbi-DVbRio=r81BAC2qYNyN4Fj3Zz7jcO9UM-kQi9ghzg@mail.gmail.com>
 <CADZJ4hNw6rehZfG_LGyyzs2hYxXWC_NGVGZq-AANQ4xJYOgQQw@mail.gmail.com>
 <CAEAdmCY+RY+4y-dWeEnZ9PXgRo6VauOkAz1eg1EVz02r5dsy0A@mail.gmail.com>
 <CADZJ4hMb6roVPyPkrJgvg+sR=ar+PFGf2XWxoLP0tJACtyDUeg@mail.gmail.com>
Message-ID: <CAEAdmCZ5Km0rBHtyLEru+8fN0Zy7YbbpkSw_XfuF0Ob3bmTokA@mail.gmail.com>

Is there the same (VTK proper) vow to maintain the code until
death-do-us-part for the Remote Modules? Just asking :-)

Goodwin
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From ken.martin at kitware.com  Thu Nov 16 08:54:23 2017
From: ken.martin at kitware.com (Ken Martin)
Date: Thu, 16 Nov 2017 08:54:23 -0500
Subject: [vtkusers] Shadows with VTK 8.0
In-Reply-To: <CAJk8dSCOsMVAYF+tO6cX-hfhAzfC+Q4X=6D65-YNpVqQ_oBfwA@mail.gmail.com>
References: <SG2PR06MB085579BFA180309AD16404C8FD2E0@SG2PR06MB0855.apcprd06.prod.outlook.com>
 <CAJk8dSCOsMVAYF+tO6cX-hfhAzfC+Q4X=6D65-YNpVqQ_oBfwA@mail.gmail.com>
Message-ID: <CANXz0SZAUMMVDRD4WgWX1LpNhfZ25YA9yfc=EBMCdqEbzST1-A@mail.gmail.com>

There is also a test of shadows in Rendering/OpenGL2/Testing/Cxx that you
can look at - Ken

On Thu, Nov 16, 2017 at 4:40 AM, Chiranjib Sur <sur.chiranjib at gmail.com>
wrote:

> This wiki link gives you the details of the API changes in VTK development
> : https://www.vtk.org/Wiki/VTK/Roadmap
>
> Hope that helps
>
>
> Thanks and regards,
> Chiranjib
>
> On Thu, Nov 16, 2017 at 3:00 PM, Yeshwanth, Chandan <
> chandan.yeshwanth at siemens.com> wrote:
>
>> Hi,
>>
>>
>>
>> Can anyone help me implement shadow mapping with VTK 8.0?
>>
>> The existing example here - https://lorensen.github.io/VTK
>> Examples/site/Cxx/Visualization/Shadows/ gives this error ?
>>
>> AttributeError: 'vtkRenderingOpenGL2Python.vtkShadowMapBakerPass' object
>> has no attribute 'SetOpaquePass'
>>
>>
>>
>> Has the API changed from 5.10 to 8? A minimum working example of shadows
>> in VTK 8 or a summary of the API changes will be great!
>>
>>
>>
>> Thanks,
>>
>> Chandan
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/vtkusers
>>
>>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>


-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
not the intended recipient, any disclosure, copying, distribution or any
action taken in reliance on it is prohibited and may be unlawful. If you
received this communication in error please notify us immediately and
destroy the original message.  Thank you.
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From amine.aboufirass at gmail.com  Thu Nov 16 11:25:02 2017
From: amine.aboufirass at gmail.com (Amine Aboufirass)
Date: Thu, 16 Nov 2017 17:25:02 +0100
Subject: [vtkusers] Extracting selection from UnstructuredGridDataset using
	python
Message-ID: <CAMwawgNyF2QZ-afRsDkqYTD55_v3bRbYzbETBiw1f9mu-_d79w@mail.gmail.com>

Hello,

I am trying to extract specific points and their corresponding values from
an unstructured grid dataset using python. My objective is to provide a
list of pointID's or X,Y,Z locations, the name of the result I would like
to extract and in return get a list containing the values.. The values
associated with the points are in vector, scalar and/or tensor form. I've
made several attempts using the following classes of objects described in
the vtk class documentation:

   - vtkExtractSelection
   - vtkSelection
   - vtkSelectionNode
   - vtkSelectionSource
   - vtkUnstructuredGridReader

It appears that these objects are somewhat related. For instance the
vtkExtractSelection object can take in a vtkObject output from an
unstructured grid reader and a vtkSelection. A vtkSelection can carry any
number of vtkSelectionNodes. The vtkSelection node stores selection
parameters for a list of properties and a list of selection values. The
list of properties can contain information about what is stored by the node
such as GLOBALID and LOCATION. It is also possible to assign several
vtkSelectionNodes as ContentTypes and FieldTypes to a
vtkSelectionSourceObject. The vtkSelectionSource object itself outputs a
vtkSelection when piece id and cell id pairs are provided as input.  I have
also noticed it is possible to .AddID and .AddLocation to a
vtkSelectionSource object.

Furthermore I have searched through the available examples including the
following:

https://www.vtk.org/gitweb?p=VTK.git;a=blob;f=Examples/Infovis/Python/graph_selection_subtract.py

https://www.programcreek.com/python/example/21682/vtk.
vtkExtractUnstructuredGrid

I also asked a fairly detailed question on stackexchange:

https://stackoverflow.com/questions/47332100/selectionnode-object-from-vtk-library

The stackexchange post has of yet received no response, and the examples
were helpful but didn't quite get me there.

In light of what I have explained above, does anyone have further
indications of what I can do to achieve this? Thanks you kindly for your
consideration and look forward to your responses.

Regards,

Amine
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From lasso at queensu.ca  Thu Nov 16 13:38:50 2017
From: lasso at queensu.ca (Andras Lasso)
Date: Thu, 16 Nov 2017 18:38:50 +0000
Subject: [vtkusers] vtkbioeng for vtk7.1.1 ?
In-Reply-To: <CAEAdmCZ5Km0rBHtyLEru+8fN0Zy7YbbpkSw_XfuF0Ob3bmTokA@mail.gmail.com>
References: <1510664968533-0.post@n5.nabble.com>
 <CAEAdmCbi-DVbRio=r81BAC2qYNyN4Fj3Zz7jcO9UM-kQi9ghzg@mail.gmail.com>
 <CADZJ4hNw6rehZfG_LGyyzs2hYxXWC_NGVGZq-AANQ4xJYOgQQw@mail.gmail.com>
 <CAEAdmCY+RY+4y-dWeEnZ9PXgRo6VauOkAz1eg1EVz02r5dsy0A@mail.gmail.com>
 <CADZJ4hMb6roVPyPkrJgvg+sR=ar+PFGf2XWxoLP0tJACtyDUeg@mail.gmail.com>
 <CAEAdmCZ5Km0rBHtyLEru+8fN0Zy7YbbpkSw_XfuF0Ob3bmTokA@mail.gmail.com>
Message-ID: <BY2PR0701MB1941799684C053B86003E44FD82E0@BY2PR0701MB1941.namprd07.prod.outlook.com>

If a remote module has users then they will probably keep sending pull requests with small fixes and improvements. If you cannot maintain the code anymore (not even merging pull requests) then eventually people will switch to a better-maintained fork or use different modules. So, I don?t think you need to promise or guarantee anything for the future.

Andras

From: Goodwin Lawlor [mailto:goodwin.lawlor.lists at gmail.com]
Sent: Thursday, November 16, 2017 7:10 AM
To: Bill Lorensen <bill.lorensen at gmail.com>
Cc: -Daniel- <ich_daniel at habmalnefrage.de>; Andras Lasso <lasso at queensu.ca>; VTK Users <vtkusers at vtk.org>
Subject: Re: [vtkusers] vtkbioeng for vtk7.1.1 ?

Is there the same (VTK proper) vow to maintain the code until death-do-us-part for the Remote Modules? Just asking :-)

Goodwin

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From goodwin.lawlor.lists at gmail.com  Thu Nov 16 14:02:14 2017
From: goodwin.lawlor.lists at gmail.com (Goodwin Lawlor)
Date: Thu, 16 Nov 2017 19:02:14 +0000
Subject: [vtkusers] vtkbioeng for vtk7.1.1 ?
In-Reply-To: <BY2PR0701MB1941799684C053B86003E44FD82E0@BY2PR0701MB1941.namprd07.prod.outlook.com>
References: <1510664968533-0.post@n5.nabble.com>
 <CAEAdmCbi-DVbRio=r81BAC2qYNyN4Fj3Zz7jcO9UM-kQi9ghzg@mail.gmail.com>
 <CADZJ4hNw6rehZfG_LGyyzs2hYxXWC_NGVGZq-AANQ4xJYOgQQw@mail.gmail.com>
 <CAEAdmCY+RY+4y-dWeEnZ9PXgRo6VauOkAz1eg1EVz02r5dsy0A@mail.gmail.com>
 <CADZJ4hMb6roVPyPkrJgvg+sR=ar+PFGf2XWxoLP0tJACtyDUeg@mail.gmail.com>
 <CAEAdmCZ5Km0rBHtyLEru+8fN0Zy7YbbpkSw_XfuF0Ob3bmTokA@mail.gmail.com>
 <BY2PR0701MB1941799684C053B86003E44FD82E0@BY2PR0701MB1941.namprd07.prod.outlook.com>
Message-ID: <CAEAdmCYuPADXzAMsK2C_tN9KVEbkAw6BTCcj0NgEQvjOGuRiXw@mail.gmail.com>

That's a good point - the community/users can fork a remote module so the
only thing that has to change in VTK core is the new repo location.

On Thu, Nov 16, 2017 at 6:38 PM, Andras Lasso <lasso at queensu.ca> wrote:

> If a remote module has users then they will probably keep sending pull
> requests with small fixes and improvements. If you cannot maintain the code
> anymore (not even merging pull requests) then eventually people will switch
> to a better-maintained fork or use different modules. So, I don?t think you
> need to promise or guarantee anything for the future.
>
>
>
> Andras
>
>
>
> *From:* Goodwin Lawlor [mailto:goodwin.lawlor.lists at gmail.com]
> *Sent:* Thursday, November 16, 2017 7:10 AM
> *To:* Bill Lorensen <bill.lorensen at gmail.com>
> *Cc:* -Daniel- <ich_daniel at habmalnefrage.de>; Andras Lasso <
> lasso at queensu.ca>; VTK Users <vtkusers at vtk.org>
> *Subject:* Re: [vtkusers] vtkbioeng for vtk7.1.1 ?
>
>
>
> Is there the same (VTK proper) vow to maintain the code until
> death-do-us-part for the Remote Modules? Just asking :-)
>
>
>
> Goodwin
>
>
>
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From chandan.yeshwanth at siemens.com  Thu Nov 16 23:15:18 2017
From: chandan.yeshwanth at siemens.com (Yeshwanth, Chandan)
Date: Fri, 17 Nov 2017 04:15:18 +0000
Subject: [vtkusers] Shadows with VTK 8.0
In-Reply-To: <CANXz0SZAUMMVDRD4WgWX1LpNhfZ25YA9yfc=EBMCdqEbzST1-A@mail.gmail.com>
References: <SG2PR06MB085579BFA180309AD16404C8FD2E0@SG2PR06MB0855.apcprd06.prod.outlook.com>
 <CAJk8dSCOsMVAYF+tO6cX-hfhAzfC+Q4X=6D65-YNpVqQ_oBfwA@mail.gmail.com>
 <CANXz0SZAUMMVDRD4WgWX1LpNhfZ25YA9yfc=EBMCdqEbzST1-A@mail.gmail.com>
Message-ID: <SG2PR06MB085507A811480E999B32CB7FFD2F0@SG2PR06MB0855.apcprd06.prod.outlook.com>

Thanks Ken, Chiranjib. I tried out the example you mentioned in Rendering/OpenGL2/Testing/Cxx.

It looks like the API has changed in a few places ?

?       vtkShadowMapBakerPass.SetOpaquePass is now SetOpaqueSequence

I couldn?t resolve these API errors, which seem to be essential to rendering shadows -

?       vtkShadowMapBakerPass has no member named SetPolygonOffsetFactor

?       vtkShadowMapBakerPass has no member named SetPolygonOffsetUnits

?       ?OCCLUDER? is not a member of ?vtkShadowMapBakerPass?

?       ?RECEIVER? is not a member of ?vtkShadowMapBakerPass?

I searched for the new API in the ?API Changes? sections that Chiranjib mentioned as well as in the VTK source code itself, but I couldn?t find the new function calls to be used.
Can you please help me out with this?

Regards,
Chandan

From: Ken Martin [mailto:ken.martin at kitware.com]
Sent: Thursday, November 16, 2017 7:24 PM
To: Chiranjib Sur
Cc: Yeshwanth, Chandan (CT RDA BAM ADM-IN); vtkusers at vtk.org; Chennamsetty, Sai Saketh (CT RDA BAM ADM-IN)
Subject: Re: [vtkusers] Shadows with VTK 8.0

There is also a test of shadows in Rendering/OpenGL2/Testing/Cxx that you can look at - Ken

On Thu, Nov 16, 2017 at 4:40 AM, Chiranjib Sur <sur.chiranjib at gmail.com<mailto:sur.chiranjib at gmail.com>> wrote:
This wiki link gives you the details of the API changes in VTK development : https://www.vtk.org/Wiki/VTK/Roadmap

Hope that helps


Thanks and regards,
Chiranjib

On Thu, Nov 16, 2017 at 3:00 PM, Yeshwanth, Chandan <chandan.yeshwanth at siemens.com<mailto:chandan.yeshwanth at siemens.com>> wrote:
Hi,

Can anyone help me implement shadow mapping with VTK 8.0?
The existing example here - https://lorensen.github.io/VTKExamples/site/Cxx/Visualization/Shadows/ gives this error ?
AttributeError: 'vtkRenderingOpenGL2Python.vtkShadowMapBakerPass' object has no attribute 'SetOpaquePass'

Has the API changed from 5.10 to 8? A minimum working example of shadows in VTK 8 or a summary of the API changes will be great!

Thanks,
Chandan

_______________________________________________
Powered by www.kitware.com<http://www.kitware.com>

Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ

Search the list archives at: http://markmail.org/search/?q=vtkusers

Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/vtkusers


_______________________________________________
Powered by www.kitware.com<http://www.kitware.com>

Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ

Search the list archives at: http://markmail.org/search/?q=vtkusers

Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/vtkusers



--
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and legally privileged information, and it is intended only for the use of the addressee.  Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken in reliance on it is prohibited and may be unlawful. If you received this communication in error please notify us immediately and destroy the original message.  Thank you.
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From chandan.yeshwanth at siemens.com  Fri Nov 17 00:47:19 2017
From: chandan.yeshwanth at siemens.com (Yeshwanth, Chandan)
Date: Fri, 17 Nov 2017 05:47:19 +0000
Subject: [vtkusers] Shadows with VTK 8.0
References: <SG2PR06MB085579BFA180309AD16404C8FD2E0@SG2PR06MB0855.apcprd06.prod.outlook.com>
 <CAJk8dSCOsMVAYF+tO6cX-hfhAzfC+Q4X=6D65-YNpVqQ_oBfwA@mail.gmail.com>
 <CANXz0SZAUMMVDRD4WgWX1LpNhfZ25YA9yfc=EBMCdqEbzST1-A@mail.gmail.com> 
Message-ID: <SG2PR06MB08551DB94C3BB727A05D5E20FD2F0@SG2PR06MB0855.apcprd06.prod.outlook.com>

Sorry, I was looking for the examples in the wrong directory (OpenGL). I tried out the example in the OpenGL2 directory and most of the API works in Python, except line 94 (https://github.com/Kitware/VTK/blob/master/Rendering/OpenGL2/Testing/Cxx/TestShadowMapBakerPass.cxx) ?

?        vtkTextureObject *to = (*bakerPass->GetShadowMaps())[2];
The error in Python is ?AttributeError: 'vtkRenderingOpenGL2Python.vtkShadowMapBakerPass' object has no attribute 'GetShadowMaps'?. I couldn?t find an alternative to this yet.

If comment out this code and run it, the second renderWindow.Render() call causes a segmentation fault with this error ?

?        Warning: In /home/user1/VTK-8.0.1/Common/ExecutionModel/vtkAlgorithm.cxx, line 1422

?        vtkOpenGLTexture (0x5555ba473d10): Attempt to get connection index 0 for input port 0, which has 0 connections.

?        Segmentation fault (core dumped)

Please let me know if you have any advice for this. Meanwhile I will try out the other example - TestShadowMapPass.cxx.

Regards,
Chandan

From: Yeshwanth, Chandan (CT RDA BAM ADM-IN)
Sent: Friday, November 17, 2017 9:45 AM
To: 'Ken Martin'; Chiranjib Sur
Cc: vtkusers at vtk.org; Chennamsetty, Sai Saketh (CT RDA BAM ADM-IN)
Subject: RE: [vtkusers] Shadows with VTK 8.0

Thanks Ken, Chiranjib. I tried out the example you mentioned in Rendering/OpenGL2/Testing/Cxx.

It looks like the API has changed in a few places ?

?       vtkShadowMapBakerPass.SetOpaquePass is now SetOpaqueSequence

I couldn?t resolve these API errors, which seem to be essential to rendering shadows -

?       vtkShadowMapBakerPass has no member named SetPolygonOffsetFactor

?       vtkShadowMapBakerPass has no member named SetPolygonOffsetUnits

?       ?OCCLUDER? is not a member of ?vtkShadowMapBakerPass?

?       ?RECEIVER? is not a member of ?vtkShadowMapBakerPass?

I searched for the new API in the ?API Changes? sections that Chiranjib mentioned as well as in the VTK source code itself, but I couldn?t find the new function calls to be used.
Can you please help me out with this?

Regards,
Chandan

From: Ken Martin [mailto:ken.martin at kitware.com]
Sent: Thursday, November 16, 2017 7:24 PM
To: Chiranjib Sur
Cc: Yeshwanth, Chandan (CT RDA BAM ADM-IN); vtkusers at vtk.org<mailto:vtkusers at vtk.org>; Chennamsetty, Sai Saketh (CT RDA BAM ADM-IN)
Subject: Re: [vtkusers] Shadows with VTK 8.0

There is also a test of shadows in Rendering/OpenGL2/Testing/Cxx that you can look at - Ken

On Thu, Nov 16, 2017 at 4:40 AM, Chiranjib Sur <sur.chiranjib at gmail.com<mailto:sur.chiranjib at gmail.com>> wrote:
This wiki link gives you the details of the API changes in VTK development : https://www.vtk.org/Wiki/VTK/Roadmap

Hope that helps


Thanks and regards,
Chiranjib

On Thu, Nov 16, 2017 at 3:00 PM, Yeshwanth, Chandan <chandan.yeshwanth at siemens.com<mailto:chandan.yeshwanth at siemens.com>> wrote:
Hi,

Can anyone help me implement shadow mapping with VTK 8.0?
The existing example here - https://lorensen.github.io/VTKExamples/site/Cxx/Visualization/Shadows/ gives this error ?
AttributeError: 'vtkRenderingOpenGL2Python.vtkShadowMapBakerPass' object has no attribute 'SetOpaquePass'

Has the API changed from 5.10 to 8? A minimum working example of shadows in VTK 8 or a summary of the API changes will be great!

Thanks,
Chandan

_______________________________________________
Powered by www.kitware.com<http://www.kitware.com>

Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ

Search the list archives at: http://markmail.org/search/?q=vtkusers

Follow this link to subscribe/unsubscribe:
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_______________________________________________
Powered by www.kitware.com<http://www.kitware.com>

Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ

Search the list archives at: http://markmail.org/search/?q=vtkusers

Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/vtkusers



--
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and legally privileged information, and it is intended only for the use of the addressee.  Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken in reliance on it is prohibited and may be unlawful. If you received this communication in error please notify us immediately and destroy the original message.  Thank you.
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From andrew.slaughter at inl.gov  Fri Nov 17 13:13:46 2017
From: andrew.slaughter at inl.gov (Slaughter, Andrew E)
Date: Fri, 17 Nov 2017 11:13:46 -0700
Subject: [vtkusers] Glyphs Help
Message-ID: <CAGWYgT=RpVzq+LhkfCkW63X_Yj8pBqXL2QRXtAxU+5osV5bWaw@mail.gmail.com>

I am attempting to use VTK to create arrow glyphs of a vector field from an
ExodusII file, but can't seem to get the vectors to orient and scale
according to the data.

Attached is the data, example output, and script I am running. Also, I
included an image of what I am trying to do that was created with Paraview.
I am using VTK7.1 with python on a MacOS high sierra.

I would appreciate any help getting this working, when done I will upload
it to the VTK examples.

Thanks,

Andrew
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From amine.aboufirass at gmail.com  Fri Nov 17 15:40:53 2017
From: amine.aboufirass at gmail.com (Amine Aboufirass)
Date: Fri, 17 Nov 2017 21:40:53 +0100
Subject: [vtkusers] write unstructured grid vtk file to query-able database
	format
Message-ID: <CAMwawgP75b=k_bt5vX3V+L1Ps2EL-_MD4Q7mYsZc-_cbRp-zng@mail.gmail.com>

Hello,

I would like to find out if there is a way to write unstructured grid vtk
files containing scalar, tensor or vector data to any standard database
format. This could be SQLite, JSON or XML for example.

The reason  for this is that I would like to conduct queries on the
*data* contained
in the vtk file. I have no need to create new geometries or select by
frustum for example. I need only basic SQL select-where type functionality
where I can query and extract numerical data based on simple conditions.

I saw that the vtk file contains some SQL readiness but as far as I can
tell the tools are mainly to connect to an SQL database and extract data
from it. I seek to go the other way, namely to start with an unstructured
grid vtk dataset and write *that *into a database.

The following examples look promising

   -
   https://lorensen.github.io/VTKExamples/site/Cxx/Databases/SQL/MySQL/CreateDatabase/
   -
   https://lorensen.github.io/VTKExamples/site/Cxx/Databases/SQL/MySQL/WriteToDatabase/

But I have no C++ background and use mainly Python. Furthermore I'm not
sure if the above applies for Unstructured grid data.

Could anyone please enlighten me on this?

Thanks,

Amine
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From jvdura at gmail.com  Sun Nov 19 17:13:59 2017
From: jvdura at gmail.com (Juan)
Date: Sun, 19 Nov 2017 15:13:59 -0700 (MST)
Subject: [vtkusers] vtkRenderWindow does not open
Message-ID: <1511129639027-0.post@n5.nabble.com>

I am running VTK in Python. I am using the Anaconda distribution for Python
2.7 (ubuntu 16.04)

I run this simple  cylinder example
<https://lorensen.github.io/VTKExamples/site/Python/GeometricObjects/CylinderExample/>  
in Spyder.
There is not message error or warning. I don't know what to do. Please help.




--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From landinghere at 163.com  Sun Nov 19 22:52:48 2017
From: landinghere at 163.com (landings)
Date: Sun, 19 Nov 2017 20:52:48 -0700 (MST)
Subject: [vtkusers] Why does my vtkContourFilter have no output?
Message-ID: <1511149968961-0.post@n5.nabble.com>

Hi, I asked this question in Stackoverflow two days ago, but very few people
saw it and no response yet.
https://stackoverflow.com/questions/47365819/why-does-my-vtkcontourfilter-have-no-output


I am writing a VTK program with C++ to deal with finite element analysis
results. To show isosurfaces, I am trying vtkContourFilter, but I get
nothing after this filter.

So I write a simple version: a custom reader produces a 2-cell unstructured
mesh and a following vtkContourFilter extracts the isosurfaces. My scalar
data are point data.

I intend to get isosurfaces, but still, I get zero output. I want to know
what I have missed.

My program:
----------------------------------------------------
#include <vtkSmartPointer.h>
#include <vtkUnstructuredGrid.h>
#include <vtkPoints.h>
#include <vtkPointData.h>
#include <vtkCellArray.h>
#include <vtkIdList.h>
#include <vtkDoubleArray.h>
#include <vtkPointData.h>
#include <vtkUnstructuredGridReader.h>
#include <vtkInformation.h>
#include <vtkInformationVector.h>
#include <vtkClipDataSet.h>
#include <vtkPlane.h>
#include <vtkContourFilter.h>
#include <iostream>
using namespace std;
// This is a fake reader that outputs an unstructured mesh
class VTKIOLEGACY_EXPORT FakeUnstructuredGridReader : public
vtkUnstructuredGridReader {
public:
    static FakeUnstructuredGridReader* New() { return new
FakeUnstructuredGridReader(); }
    vtkTypeMacro(FakeUnstructuredGridReader, vtkUnstructuredGridReader);
    void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE {}

protected:
    FakeUnstructuredGridReader() { this->SetNumberOfInputPorts(0); }// No
input ports
    // This method passes a 2-cell unstructured grid with 1 set of scalar
point data
    int RequestData(vtkInformation*, vtkInformationVector**,
vtkInformationVector* outputVector) VTK_OVERRIDE {
        static const double rawPoints[15] = { 0, 0, 0, 1, 0, 0, 0, 1, 0, 0,
0, 1, 1, 1, 1 };
        static const vtkIdType rawIndices[8] = { 0, 1, 2, 3, 1, 2, 3, 4};
        static const double rawScalar[5] = { 5, 10, 20, 15, 50 };
        static const char* scalarName = "Stress";
        // Build Points
        auto points = vtkSmartPointer<vtkPoints>::New();
        for (int i = 0; i < 15; i += 3)
            points->InsertNextPoint(rawPoints + i);
        // Build Cells
        auto cells = vtkSmartPointer<vtkCellArray>::New();
        // Build Cell 1
        auto indices1 = vtkSmartPointer<vtkIdList>::New();
        for (int i = 0; i < 4; ++i)
            indices1->InsertNextId(rawIndices[i]);      
        cells->InsertNextCell(indices1);
        // Build Cell 2
        auto indices2 = vtkSmartPointer<vtkIdList>::New();
        for (int i = 0; i < 4; ++i)
            indices2->InsertNextId(rawIndices[i + 4]);
        cells->InsertNextCell(indices2);
        // Scalar Data
        auto dataArray = vtkSmartPointer<vtkDoubleArray>::New();
        dataArray->SetName(scalarName);
        dataArray->SetNumberOfComponents(1);
        for (int i = 0; i < 5; ++i)
            dataArray->InsertNextValue(rawScalar[i]);
        // Point Data
        auto pointData = vtkSmartPointer<vtkPointData>::New();
        pointData->AddArray(dataArray);
        // Pass Data
        vtkInformation* outInfo = outputVector->GetInformationObject(0);
        vtkUnstructuredGrid *output =
vtkUnstructuredGrid::SafeDownCast(outInfo->Get(vtkDataObject::DATA_OBJECT()));
        output->SetPoints(points);
        output->SetCells(VTK_TETRA, cells);
        output->SetFieldData(pointData);
        return 1;
    }
};

int main() {
    // Reader
    auto fakeReader = vtkSmartPointer<FakeUnstructuredGridReader>::New();

    // Isosurface Filter
    auto isoFilter = vtkSmartPointer<vtkContourFilter>::New();
    isoFilter->SetInputConnection(fakeReader->GetOutputPort());
    isoFilter->GenerateValues(8, 0.0, 50.0);
    isoFilter->Update();

    cout << fakeReader->GetOutput()->GetNumberOfPoints() << endl;
    cout << fakeReader->GetOutput()->GetNumberOfCells() << endl;
    cout << fakeReader->GetOutput()->GetFieldData()->GetNumberOfArrays() <<
endl;
    cout << isoFilter->GetOutput()->GetNumberOfPoints() << endl;
    cout << isoFilter->GetOutput()->GetNumberOfCells() << endl;
    cout << isoFilter->GetOutput()->GetFieldData()->GetNumberOfArrays() <<
endl;

    system("pause");
    return 0;
}
----------------------------------------------------

Its output:
5
2
1
0
0
1



--
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From 278124177 at qq.com  Mon Nov 20 03:49:30 2017
From: 278124177 at qq.com (=?gb18030?B?zui3qM7ozOw=?=)
Date: Mon, 20 Nov 2017 16:49:30 +0800
Subject: [vtkusers] Draw a closed area on the screen
Message-ID: <tencent_8A110CB8B1E6BC89DA946AE81251C85C9609@qq.com>

Hi,    I want to use the mouse  to choose an array of points  and then connetct the dots directly to make  a closed area. How can i do this with VTK? Thanks.
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From robert.maynard at kitware.com  Mon Nov 20 12:39:00 2017
From: robert.maynard at kitware.com (Robert Maynard)
Date: Mon, 20 Nov 2017 12:39:00 -0500
Subject: [vtkusers] Performance issue with 8.1.0rc1
In-Reply-To: <d9960d82-f0a8-6e1a-32b0-26eb389b3a20@gmail.com>
References: <d9960d82-f0a8-6e1a-32b0-26eb389b3a20@gmail.com>
Message-ID: <CAFzjYVreSbmsgN+V75+BpLMij-2+hfqE2Cj9VxmXLJ6xGSHJ9Q@mail.gmail.com>

Are you able to record some performance information so we can dig into
the issue?

Can you build with debug symbols, run performance analysis ( sudo perf
record -F 99 -a -g -- sleep 50 ), and than link us to the performance
data ( perf.data )?

On Tue, Nov 14, 2017 at 4:43 AM, marcin.krotkiewski
<marcin.krotkiewski at gmail.com> wrote:
> Hello,
>
> I compiled VTK8.1.0rc1 with GCC + OpenMP and tested it in my Java-based
> application. The behavior is different compared to 8.0.1: when I manipulate
> (rotate/move) my model, all CPU cores are 100% active (used to be only 1),
> and the performance is very sluggish. Rotation staggers and is not smooth,
> even if I only render the axis actor. On the other hand, compiling without
> OpenMP support (Sequential) works as it used to.
>
> Does anyone have ideas?
>
> Thanks!
>
> Marcin
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers

From mikewithascarf at yahoo.com  Mon Nov 20 16:21:25 2017
From: mikewithascarf at yahoo.com (mikewithascarf)
Date: Mon, 20 Nov 2017 14:21:25 -0700 (MST)
Subject: [vtkusers] smooth part of surface (polydata)
Message-ID: <1511212885803-0.post@n5.nabble.com>

How would I go about smoothing only a part of a surface (vtkpolydata)? I have
a surface where there are bumps, which I know the centers (x,y,z) and
approximate radius of. I only want to smooth these bumps, and leave the rest
of the surface untouched. Is there perhaps a way to specify a region for
vtkSmoothPolyDataFilter to act on? 

Any help is appreciated!



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From dave.demarle at kitware.com  Mon Nov 20 17:03:53 2017
From: dave.demarle at kitware.com (David E DeMarle)
Date: Mon, 20 Nov 2017 17:03:53 -0500
Subject: [vtkusers] vtkXdmf3Writer index precision
In-Reply-To: <f6beb103-988a-ca65-d74c-b99bdf1f5e2f@surfsara.nl>
References: <f6beb103-988a-ca65-d74c-b99bdf1f5e2f@surfsara.nl>
Message-ID: <CANjZAi-kBiPsHLSc2obhT5_h6QMNzBcPZDQuFKLF1+zZPH9Reg@mail.gmail.com>

As for xdmf3, yes the size of the compiled in ID type is what determines it.
See
https://gitlab.kitware.com/vtk/vtk/blob/master/IO/Xdmf3/vtkXdmf3DataSet.cxx#L372
where we check the size and then give over the pointer.



David E DeMarle
Kitware, Inc.
Principal Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909

On Thu, Nov 16, 2017 at 4:20 AM, Paul Melis <paul.melis at surfsara.nl> wrote:

> Hi,
>
> Is there a way to specify the integer precision of polydata index arrays
> when using the Xdmf3 writer? For me, it's currently writing out indices in
> 64 bits, which is a bit wasteful given the number of vertices:
>
> <?xml version="1.0" encoding="utf-8"?>
> <Xdmf xmlns:xi="http://www.w3.org/2001/XInclude" Version="3.3">
>   <Domain>
>     <Grid Name="Grid">
>       <Geometry Origin="" Type="XYZ">
>         <DataItem DataType="Float" Dimensions="39010488 3" Format="HDF"
> Precision="4">region-rbc-9.h5:Data2</DataItem>
>       </Geometry>
>       <Topology Dimensions="77777920" Type="Mixed">
>         <DataItem DataType="Int" Dimensions="311111680" Format="HDF"
> Precision="8">region-rbc-9.h5:Data3</DataItem>
>       </Topology>
>     </Grid>
>   </Domain>
> </Xdmf>
>
> Or is the output precision of (most) VTK writers fully determined by the
> compiled-in ID type?
>
> Thanks,
> Paul
>
> --
>
> Paul Melis
> | Visualization group leader & developer | SURFsara |
> | Science Park 140 | 1098 XG Amsterdam |
> | T 020 800 1312 | paul.melis at surfsara.nl | www.surfsara.nl |
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensou
> rce/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
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From paul.melis at surfsara.nl  Tue Nov 21 02:40:38 2017
From: paul.melis at surfsara.nl (Paul Melis)
Date: Tue, 21 Nov 2017 08:40:38 +0100
Subject: [vtkusers] vtkXdmf3Writer index precision
In-Reply-To: <CANjZAi-kBiPsHLSc2obhT5_h6QMNzBcPZDQuFKLF1+zZPH9Reg@mail.gmail.com>
References: <f6beb103-988a-ca65-d74c-b99bdf1f5e2f@surfsara.nl>
 <CANjZAi-kBiPsHLSc2obhT5_h6QMNzBcPZDQuFKLF1+zZPH9Reg@mail.gmail.com>
Message-ID: <08ab5aca-e2b9-ee9c-2a01-1e6d6de535a6@surfsara.nl>

Thanks, David!
Looks like I need to build a 32-bit-ID version of VTK :-)

Paul


On 11/20/2017 11:03 PM, David E DeMarle wrote:
> As for xdmf3, yes the size of the compiled in ID type is what 
> determines it.
> See
> https://gitlab.kitware.com/vtk/vtk/blob/master/IO/Xdmf3/vtkXdmf3DataSet.cxx#L372
> where we check the size and then give over the pointer.
>
>
>
> David E DeMarle
> Kitware, Inc.
> Principal Engineer
> 21 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-881-4909
>
> On Thu, Nov 16, 2017 at 4:20 AM, Paul Melis <paul.melis at surfsara.nl 
> <mailto:paul.melis at surfsara.nl>> wrote:
>
>     Hi,
>
>     Is there a way to specify the integer precision of polydata index
>     arrays when using the Xdmf3 writer? For me, it's currently writing
>     out indices in 64 bits, which is a bit wasteful given the number
>     of vertices:
>
>     <?xml version="1.0" encoding="utf-8"?>
>     <Xdmf xmlns:xi="http://www.w3.org/2001/XInclude
>     <http://www.w3.org/2001/XInclude>" Version="3.3">
>     ? <Domain>
>     ? ? <Grid Name="Grid">
>     ? ? ? <Geometry Origin="" Type="XYZ">
>     ? ? ? ? <DataItem DataType="Float" Dimensions="39010488 3"
>     Format="HDF" Precision="4">region-rbc-9.h5:Data2</DataItem>
>     ? ? ? </Geometry>
>     ? ? ? <Topology Dimensions="77777920" Type="Mixed">
>     ? ? ? ? <DataItem DataType="Int" Dimensions="311111680"
>     Format="HDF" Precision="8">region-rbc-9.h5:Data3</DataItem>
>     ? ? ? </Topology>
>     ? ? </Grid>
>     ? </Domain>
>     </Xdmf>
>
>     Or is the output precision of (most) VTK writers fully determined
>     by the compiled-in ID type?
>
>     Thanks,
>     Paul
>
>     -- 
>
>     Paul Melis
>     | Visualization group leader & developer | SURFsara |
>     | Science Park 140 | 1098 XG Amsterdam |
>     | T 020 800 1312 | paul.melis at surfsara.nl
>     <mailto:paul.melis at surfsara.nl> | www.surfsara.nl
>     <http://www.surfsara.nl> |
>     _______________________________________________
>     Powered by www.kitware.com <http://www.kitware.com>
>
>     Visit other Kitware open-source projects at
>     http://www.kitware.com/opensource/opensource.html
>     <http://www.kitware.com/opensource/opensource.html>
>
>     Please keep messages on-topic and check the VTK FAQ at:
>     http://www.vtk.org/Wiki/VTK_FAQ <http://www.vtk.org/Wiki/VTK_FAQ>
>
>     Search the list archives at:
>     http://markmail.org/search/?q=vtkusers
>     <http://markmail.org/search/?q=vtkusers>
>
>     Follow this link to subscribe/unsubscribe:
>     http://public.kitware.com/mailman/listinfo/vtkusers
>     <http://public.kitware.com/mailman/listinfo/vtkusers>
>
>

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From fromseattle at gmail.com  Tue Nov 21 22:31:23 2017
From: fromseattle at gmail.com (Frank Sea)
Date: Tue, 21 Nov 2017 20:31:23 -0700 (MST)
Subject: [vtkusers] vtkTextActor render utf8 characters not working
Message-ID: <1511321483500-0.post@n5.nabble.com>

Hi All,

I built the test code at the following location: 
https://gitlab.kitware.com/vtk/vtk/blob/master/Rendering/FreeType/Testing/Cxx/TestMathTextFreeTypeTextRenderer.cxx#L184

which tests displaying utf8 chars like following:
    // UTF-8 freetype handling:
    vtkNew<vtkTextActor> actor15;
    actor15->GetTextProperty()->SetFontFamily(VTK_FONT_FILE);
    actor15->GetTextProperty()->SetFontFile(uncodeFontFile.c_str());
    actor15->GetTextProperty()->SetJustificationToCentered();
    actor15->GetTextProperty()->SetVerticalJustificationToCentered();
    actor15->GetTextProperty()->SetFontSize(18);
    actor15->GetTextProperty()->SetColor(0.0, 1.0, 0.7);
    actor15->SetInput("UTF-8 FreeType:
\xce\xa8\xd2\x94\xd2\x96\xd1\x84\xd2\xbe");
    actor15->SetPosition(10, 110);

I provided font file from
https://github.com/aosp-mirror/platform_frameworks_base/blob/master/data/fonts/DroidSansFallbackFull.ttf

But the text is not rendered. It's blank for that one. Anyone know the
reason? I am on Windows 10.



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From chandan.yeshwanth at siemens.com  Wed Nov 22 06:24:49 2017
From: chandan.yeshwanth at siemens.com (chandan)
Date: Wed, 22 Nov 2017 04:24:49 -0700 (MST)
Subject: [vtkusers] Example for vtkProjectedTexture usage
In-Reply-To: <CADZJ4hMOJa3tgbuNy18QjMm9Dc1gA-NZ68-sj022Uh1KjooJ_A@mail.gmail.com>
References: <SG2PR06MB0855AE6AD07AC1E2EC703234FD5E0@SG2PR06MB0855.apcprd06.prod.outlook.com>
 <CADZJ4hMOJa3tgbuNy18QjMm9Dc1gA-NZ68-sj022Uh1KjooJ_A@mail.gmail.com>
Message-ID: <1511349889237-0.post@n5.nabble.com>

Thanks for the example Bill.

I am trying to project 2 different images onto the same object (an STL
actor). Is this possible with vtkProjectedTexture? For simplicity, I am
projecting a simple red square and blue square onto the object from 2
different locations. I set 2 different locations for the vtkProjectedTexture
objects and create a vtkLight at each location as well. The light is
required to create shadows on the rest of the object which is not covered by
textures. However, only the second (blue image) gets projected onto the
object, and this gets illuminated by both lights.

I have tried these approaches - 
- combine the TCoords obtained from both ProjectedTexture objects, by
concatenating the vtkFloatArray objects.
(projectedTexture.GetOutput().GetPointData().GetTCoords()). 
-  reuse the vtkPolyData object returned by
projectedTexture.GetPolyDataOutput()

Both of these gave the same result that I mentioned above.

Thanks,
Chandan



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From karsten.tausche at student.hpi.uni-potsdam.de  Wed Nov 22 10:45:08 2017
From: karsten.tausche at student.hpi.uni-potsdam.de (Karsten Tausche)
Date: Wed, 22 Nov 2017 16:45:08 +0100
Subject: [vtkusers] vtkPlotPoints marker in QVTKOpenGLWidget on Windows
Message-ID: <454ffaae-9820-ff82-16d8-e5892bb1aa51@student.hpi.uni-potsdam.de>

Hi all,

I'm having trouble with the MarkerStyle property of vtkPlotPoints when
using the QVTKOpenGLWidget for OpenGL context creation on Windows. See
the attached code for a minimum example. When cross or square is
selected, squares are drawn. For all other marker styles, no markers at
all are drawn. After some debugging, it seems that the correct marker
textures are generated and selected, but apparently they don't reach the
GPU buffer/texture data. Maybe some GPU buffers of the chart/context
components are not correctly (re-)initialized in the OpenGL context of
Qt widget.

The example code works fine when using the vtkRenderWindow for context
creation (undefine USE_QVTK in line 18). On Linux both implementations
work fine. On Windows (8.1) I tested the code on an Intel HD Graphics
5500 and GeForce 940M, with Qt 5.9 and VTK v8.1.0.rc1.

Note that the QSurfaceFormat hacks around line 52 don't change anything
on modern hardware. Also, changing the vtkPlotLine to vtkPlotPoints has
no effect on the markers, it's just convenient to see the line for
reference.

Did I miss anything for passing the QVTKOpenGLWidget's render window to
the vtkContextView? It's not that obvious in which order the widget,
context view and chart should be created and assigned to each other.
With some alternative initialization orders it just crashes at runtime.

Thanks a lot for your help!

Karsten

-------------- next part --------------
#include <iostream>
#include <QApplication>
#include <QVTKOpenGLWidget.h>
#include <vtkCallbackCommand.h>
#include <vtkChartXY.h>
#include <vtkContextScene.h>
#include <vtkContextView.h>
#include <vtkFloatArray.h>
#include <vtkGenericOpenGLRenderWindow.h>
#include <vtkNew.h>
#include <vtkPlotLine.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkSmartPointer.h>
#include <vtkTable.h>


#define USE_QVTK


int main(int argc, char ** argv)
{
    vtkNew<vtkFloatArray> x;
    x->SetName("x");
    x->SetNumberOfTuples(10);
    for (vtkIdType i = 0; i < x->GetNumberOfTuples(); ++i) {
        x->SetValue(i, float(i));
    }
    vtkNew<vtkFloatArray> y;
    y->DeepCopy(x);
    y->SetName("y");
    vtkNew<vtkTable> table;
    table->AddColumn(x);
    table->AddColumn(y);

    auto plot = vtkSmartPointer<vtkPlotLine>::New();
    plot->SetInputData(table, 0, 1);
    //plot->SetMarkerStyle(vtkPlotPoints::NONE);    // -> None
    //plot->SetMarkerStyle(vtkPlotPoints::CROSS);   // -> Square
    //plot->SetMarkerStyle(vtkPlotPoints::PLUS);    // -> None
    //plot->SetMarkerStyle(vtkPlotPoints::SQUARE);  // -> Square
    //plot->SetMarkerStyle(vtkPlotPoints::CIRCLE);  // -> None
      plot->SetMarkerStyle(vtkPlotPoints::DIAMOND);   // -> None
    plot->SetMarkerSize(20.f);

    vtkNew<vtkContextView> view;

#ifdef USE_QVTK
    auto format = QVTKOpenGLWidget::defaultFormat();
    format.setSamples(0);
    // This is required for Intel HD 3000 (and similar?) broken Windows drivers.
    format.setProfile(QSurfaceFormat::CompatibilityProfile);
    format.setOption(QSurfaceFormat::DeprecatedFunctions, true);
    QSurfaceFormat::setDefaultFormat(format);

    QApplication app(argc, argv);

    QVTKOpenGLWidget widget;
    vtkNew<vtkGenericOpenGLRenderWindow> renWin;
    widget.SetRenderWindow(renWin);
    view->SetRenderWindow(renWin);
#endif

    vtkNew<vtkChartXY> chart;
    view->GetScene()->AddItem(chart);
    chart->AddPlot(plot);

    class Callback : public vtkCallbackCommand
    {
    public:
        static Callback* New() { return new Callback; }
        void Execute(vtkObject * obj, unsigned long evId, void*ptr) override
        {
            auto iren = vtkRenderWindowInteractor::SafeDownCast(obj);
            if (!iren) {
                return;
            }
            const int diff = iren->GetKeyCode() == 'a' ? 1 : -1;
            const int newMarker = (plot->GetMarkerStyle() + diff + vtkPlotPoints::DIAMOND + 1) % (vtkPlotPoints::DIAMOND + 1);
            switch (newMarker)
            {
                case vtkPlotPoints::NONE: std::cout << "NONE" << std::endl; break;
                case vtkPlotPoints::CROSS: std::cout << "CROSS" << std::endl; break;
                case vtkPlotPoints::PLUS: std::cout << "PLUS" << std::endl; break;
                case vtkPlotPoints::SQUARE: std::cout << "SQUARE" << std::endl; break;
                case vtkPlotPoints::CIRCLE: std::cout << "CIRCLE" << std::endl; break;
                case vtkPlotPoints::DIAMOND: std::cout << "DIAMOND" << std::endl; break;
                default: std::cout << "(invalid)" << std::endl; break;
            }
            plot->SetMarkerStyle(newMarker);
            iren->Render();
        }
        Callback() {}
        vtkSmartPointer<vtkPlotPoints> plot;
    };
    vtkNew<Callback> callback;
    callback->plot = plot;
    view->GetInteractor()->AddObserver(vtkCommand::KeyReleaseEvent, callback);

#ifdef USE_QVTK
    widget.show();
    return app.exec();
#else
    view->GetInteractor()->Start();
    return 0;
#endif
}
-------------- next part --------------
cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)

project(QtPlotMarkerTest)


find_package(VTK REQUIRED COMPONENTS
    vtkRenderingContextOpenGL2
    vtkChartsCore
    vtkViewsContext2D
    vtkGUISupportQt
)
include(${VTK_USE_FILE})

add_executable(QtPlotMarkerTest QtPlotMarkerTest.cxx)
target_link_libraries(QtPlotMarkerTest ${VTK_LIBRARIES})

From Adrian.Bielefeldt at mailbox.tu-dresden.de  Wed Nov 22 11:03:35 2017
From: Adrian.Bielefeldt at mailbox.tu-dresden.de (Adrian Bielefeldt)
Date: Wed, 22 Nov 2017 17:03:35 +0100
Subject: [vtkusers] appendPolyData with shepard method: Points must be
	defined!
Message-ID: <4c01dc04-c4e2-9467-7594-01943fcedd5b@mailbox.tu-dresden.de>

Hello everyone,

I have the following setup: two vtkPolyData-Objects polyData and
additionalPolyData that I would like to combine using vtkAppendPolyData
append into one and execute a shepard method on. The following code runs
fine:


append->AddInputData(polyData);

append->Update()

(handing it to the shepard method and the rendering).


Same goes for:


append->AddInputData(additionalPolyData);

append->Update()

(handing it to the shepard method and the rendering).


This however:


append->AddInputData(polyData);

append->AddInputData(additionalPolyData);

append->Update()

(handing it to the shepard method and the rendering).


results in a "Points must be defined!"-error.

Can anybody explain to me where I'm going wrong?


Greetings,


Adrian


From Adrian.Bielefeldt at mailbox.tu-dresden.de  Wed Nov 22 11:47:00 2017
From: Adrian.Bielefeldt at mailbox.tu-dresden.de (Adrian Bielefeldt)
Date: Wed, 22 Nov 2017 17:47:00 +0100
Subject: [vtkusers] Render shepardMethod as height map
Message-ID: <7e2139d4-49e8-b963-a03a-44c95543c686@mailbox.tu-dresden.de>

Hello everyone,

I have a vtkShepardMethod-Object whose output I would like to display as
a 3d height map, using the scalar values as height. I can render it in
2d using vtkDataSetMapper, but I cannot seem to find a class that allows
me to also display it in 3d.

Greetings,

Adrian


From garyfallidis at gmail.com  Wed Nov 22 19:45:19 2017
From: garyfallidis at gmail.com (Eleftherios Garyfallidis)
Date: Thu, 23 Nov 2017 00:45:19 +0000
Subject: [vtkusers] ANN: DIPY 0.13.0
Message-ID: <CAN6JmWMOfniqEi6D5t=xqbfj6xjwk=0dkKYLpgEgQm9MAxB2gQ@mail.gmail.com>

Hello all,

We are happy to announce a new public release of DIPY. This is mostly a
maintenance release with extra fixes, speedups and minor changes of
dependencies.

*DIPY 0.13 (Tuesday, 24 October 2017)*

This release received contributions from 13 developers (the full release
notes are at: http://nipy.org/dipy/release0.13.html)

*Highlights of this release include:*

- Faster Local PCA implementation.
- Fixed different issues with OpenMP and Windows / OSX.
- Replacement of cvxopt module by cvxpy.
- Replacement of Pytables module by h5py.
- Updated API to support latest numpy version (1.14).
- New user interfaces for visualization.
- Large documentation update.

To upgrade, run the following command in your terminal:

*pip install --upgrade dipy*

or

*conda install -c conda-forge dipy*


For any questions go to http://dipy.org, or send an e-mail to
neuroimaging at python.org

We also have an instant messaging service and chat room available at
https://gitter.im/nipy/dipy

Expect mad features in release 0.14 (Jan 2018)!!!

On behalf of the DIPY developers,
Eleftherios Garyfallidis, Ariel Rokem, Serge Koudoro
http://dipy.org/developers.html
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From wumengda at gmail.com  Thu Nov 23 02:05:31 2017
From: wumengda at gmail.com (Wei Xiong)
Date: Thu, 23 Nov 2017 10:05:31 +0300
Subject: [vtkusers] (no subject)
Message-ID: <368118AE-756A-4CD0-DDC3-E95F809B1DA9@ruralkiwi.com>

hiya Vtkusers



http://bit.ly/2zbuQfD





Wei Xiong


From guillaume.jacquenot at gmail.com  Thu Nov 23 12:17:47 2017
From: guillaume.jacquenot at gmail.com (Guillaume Jacquenot)
Date: Thu, 23 Nov 2017 18:17:47 +0100
Subject: [vtkusers] Creating a parallel version of
	vtkOBBTree.IntersectWithLine
Message-ID: <CAB8-E4AHCF3Ly=u8LYTKWE4+yGP6wpa1OEziSL2nD8ZhuNaezQ@mail.gmail.com>

Dear VTK users,

I am using vtkOBBTree class to find the intersection of a ray with a mesh.

I am interested in running this method in parallel for multiple rays on
multiple CPUs or GPUs.

For time being, I have this Python snippet

obb_tree = vtk.vtkOBBTree()
obb_tree.SetDataSet(vtkPolyData)
obb_tree.BuildLocator()
points = vtk.vtkPoints()
points.SetDataTypeToDouble()
cellIds = vtk.vtkIdList()
code = self.obb_tree.IntersectWithLine(pSource, pTarget, points, cellIds)



In this thread, I have a solution where I create several vtkOBBTree instance
in different threads with openmp

https://stackoverflow.com/questions/45589572/why-does-openmp-not-parallelize-vtk-intersectwithline-code

Is it the good solution wrt to performance?
Are there other VTK mechanism to speed-up computation?

Can VTK-m be a solution? Can VTK-m classes be used to build a vtkOBBTree
equivalent?

Thanks


Regards,
Guillaume Jacquenot
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From koopman.mk at gmail.com  Thu Nov 23 15:52:44 2017
From: koopman.mk at gmail.com (Martijn Koopman)
Date: Thu, 23 Nov 2017 21:52:44 +0100
Subject: [vtkusers] Assign colors to lines of vtkPolyData with cell type
	polygon.
Message-ID: <CAKX6OK4JMYYhKVxJGrBwBqS04gcGk5C39ac5+StwKysC9fNgSg@mail.gmail.com>

Hello,

I have a vtkPolyData which cell types are polygons.
Is it possible to color individual lines of such a vtkPolyData?

I know it is possible to color individual cells by creating a data array,
setting it as cell data and calling
vtkPolyDataMapper::SetScalarModeToUseCellData().

However, the cells of the polydata are polygons, not lines.

Some background information:
First I read polygons from a file. Each polygon consists of an exterior
ring and zero or more interior rings.
I construct a vtkPolyData with these rings as lines and use
vtkContourTriangulator to form the polygons.
vtkContourTriangulator returns a vtkPolyData with polygons ofcourse.

Afterwards I want to assign a color only to those lines that constitute the
interior and exterior rings, not the lines that make up the triangulation.

Thanks in Advance,
Martijn
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From rccm.kyoshimi at gmail.com  Thu Nov 23 21:55:47 2017
From: rccm.kyoshimi at gmail.com (kenichiro yoshimi)
Date: Fri, 24 Nov 2017 11:55:47 +0900
Subject: [vtkusers] Assign colors to lines of vtkPolyData with cell type
	polygon.
In-Reply-To: <CAKX6OK4JMYYhKVxJGrBwBqS04gcGk5C39ac5+StwKysC9fNgSg@mail.gmail.com>
References: <CAKX6OK4JMYYhKVxJGrBwBqS04gcGk5C39ac5+StwKysC9fNgSg@mail.gmail.com>
Message-ID: <CAHDyfPCjcZgKTOTp1jUb71-X091TmXdMhVtz8uZ5pTc_3bY2yQ@mail.gmail.com>

Hello Martijn,

The vtkPolyDataConnectivityFilter provides a simple way to assign
colors to regional rings. I hope the attached example will help you.
Also here are the examples for reference.
https://lorensen.github.io/VTKExamples/site/Cxx/Modelling/ContourTriangulator/
https://lorensen.github.io/VTKExamples/site/Cxx/PolyData/ExtractOutsideSurface/

Thanks

2017-11-24 5:52 GMT+09:00 Martijn Koopman <koopman.mk at gmail.com>:
> Hello,
>
> I have a vtkPolyData which cell types are polygons.
> Is it possible to color individual lines of such a vtkPolyData?
>
> I know it is possible to color individual cells by creating a data array,
> setting it as cell data and calling
> vtkPolyDataMapper::SetScalarModeToUseCellData().
>
> However, the cells of the polydata are polygons, not lines.
>
> Some background information:
> First I read polygons from a file. Each polygon consists of an exterior ring
> and zero or more interior rings.
> I construct a vtkPolyData with these rings as lines and use
> vtkContourTriangulator to form the polygons.
> vtkContourTriangulator returns a vtkPolyData with polygons ofcourse.
>
> Afterwards I want to assign a color only to those lines that constitute the
> interior and exterior rings, not the lines that make up the triangulation.
>
> Thanks in Advance,
> Martijn
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
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>
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>
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From 278124177 at qq.com  Fri Nov 24 03:11:10 2017
From: 278124177 at qq.com (=?gb18030?B?zui3qM7ozOw=?=)
Date: Fri, 24 Nov 2017 16:11:10 +0800
Subject: [vtkusers] vtkplanesource
Message-ID: <tencent_FC1681775BDB730D50221319C73287810F06@qq.com>

hi 
  i  try to use vtkPlaneSource to make ge plane,but when i set the point1 ant point2 ande center, i finde the plane does not contain all the three points , how can i make the plane contains all the three points:
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From kor1581 at gmail.com  Fri Nov 24 05:35:32 2017
From: kor1581 at gmail.com (ran)
Date: Fri, 24 Nov 2017 03:35:32 -0700 (MST)
Subject: [vtkusers] vtk smart pointer
Message-ID: <1511519732324-0.post@n5.nabble.com>

I have few doubts about vtk smart pointers usage, as in case of different
scenarios explained below

Scenario1:

For example if I have two class Red and Blue with following structure

Class Red
{
Public:
	Red(){}
SetVTKtem(vtkSmartPointer<vtkType>  ptrParam)
{
	ptr  =  ptrParam
}	
private:
	vtkSmartPointer<vtkType> ptr  ;
};

Class Blue
{
Public:
    	Blue ()
   	{
       		ptr1   = vtkSmartPointer< vtkType >::New();
ptr2   = vtkSmartPointer< vtkType >::New();
   	}
	vtkSmartPointer<vtkType> GetPtr1()
{
	return ptr1 ;
}
	vtkSmartPointer<vtkType> GetPtr2()
{
	return ptr2 ;
}
  private:
	vtkSmartPointer<vtkType> ptr1  ;
vtkSmartPointer<vtkType> ptr2  ;
};

Then in main method,

void main()
{
Blue *objBlue = new Blue ;
Red * objRed =  new Red;

//In a series of events in main, will set prt1, ptr2, ptr3 in objBlue to ptr
in objRed

//in first event, set

objRed ->SetVTKtem(objBlue -> GetPtr1());

// second event, set
objRed ->SetVTKtem(objBlue -> GetPtr2());


// in third event, again will set 
objRed ->SetVTKtem(objBlue -> GetPtr1());


//Then if  delete objBlue, what happens to the object vtk objects pointed 
by ptr1, ptr2, ptr3.

delete objBlue;
}
Then
1)	After calling, 
objRed ->SetVTKtem(objBlue -> GetPtr2());
will reference of ptr1 of objBlue decrement to one?
will reference of ptr of objRed decrement to one?

2)	After deleting objBlue, what happens to the object vtk objects pointed 
by ptr1, ptr2, ptr3? 
Will there reference be zero?


Scenario2:

I have another doubt,
 is it safe to call vtkSmartPointer and vtkNew pointers in local variable to
functions which calling recursively? 
For example

Class Yellow
{
public:
function()
{
		vtkNew<vtkType1> ptrType1  = vtkSmartPointer< vtkType1>::New();
}
};	


Then in main method,
void main()
{
Yellow objYellow = new Yellow;
//Then in a series of events

//In first event
	objYellow-> function();
//In second event
objYellow-> function();
..
}

After second call to function(), will object pointed by ptrType1  in first
call be function be deleted?

Scenario3:
Another doubt is if,

Class Red
{
Public:
	Red(){}
SetVTKtem(vtkSmartPointer<vtkType>  ptrParam)
{
	ptr  =  ptrParam
}	
private:
	vtkSmartPointer<vtkType> ptr  ;
};

Class Blue
{
Public:
	vtkSmartPointer<vtkType> GetPtr1()
{
	return ptr1.GetPointer() ;
}
  private:
	vtkNew<vtkType> ptr1  ;
};


Then in main function,

void main()
{
Blue *objBlue = new Blue ;
Red * objRed =  new Red;

//In a series of events in main, will set prt1, ptr2, ptr3 in objBlue to ptr
in objRed

//in first event, set





--
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From p3tr.matousek at gmail.com  Fri Nov 24 05:36:30 2017
From: p3tr.matousek at gmail.com (=?UTF-8?Q?Petr_Matou=c5=a1ek?=)
Date: Fri, 24 Nov 2017 11:36:30 +0100
Subject: [vtkusers] vtkBoundingBox missing in Java wrapper
In-Reply-To: <67e208fe-9681-56ed-1f43-e89dbe1cad8d@gmail.com>
References: <67e208fe-9681-56ed-1f43-e89dbe1cad8d@gmail.com>
Message-ID: <c3743c91-c3d1-6d4a-3446-003953a663ac@gmail.com>

Hi,

is there any reason why the vtkBoundingBox class is not included in the 
Java wrapper? Is it because it is not derived from the vtkObject class? 
Will I broke the wrapper if I add it?

I would definitely like to use it in my Java code.

Petr

From grothausmann.roman at mh-hannover.de  Fri Nov 24 06:26:38 2017
From: grothausmann.roman at mh-hannover.de (Grothausmann, Roman Dr.)
Date: Fri, 24 Nov 2017 12:26:38 +0100
Subject: [vtkusers] watershed on surface meshs
Message-ID: <67d53e88-3783-6a6b-faae-cab064883d9d@mh-hannover.de>

Dear mailing list members,


I need to separate a mesh at "curved corners" (see attached PNG, using the 
colored labels from a facet analysis do not suffice but go in the right 
direction). So my current thought is to run vtkCurvature to get a Gaussian 
curvature value per point/vertex and then try to separate regions of positive 
values around local maxima. Just thresholding the result of vtkCurvature does 
not fully separate each local max from neighboring ones, but to my understanding 
a surface watershed would. I found two publications by Mangan and Whitaker on this:

Partitioning 3D surface meshes using watershed:
http://teacher.en.rmutt.ac.th/ktw/Resources/Full%20paper%20PDF/Partitioning%203D%20surface%20meshes%20using%20watershed%20segmentation.pdf

Surface Segmentation Using Morphological Watersheds:
https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&cad=rja&uact=8&ved=0ahUKEwjD0by1lafWAhVUGsAKHZ2MAbUQFgg_MAM&url=http%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.464.2788%26rep%3Drep1%26type%3Dpdf&usg=AFQjCNGX-p9-ElQFcpsUyBRO0pCjBKCmNg

Does anybody know about an implementation for this in VTK/ITK or another 
open-source library? If not, would it be possible to transfer the ITK watershed 
implementation for voxel data to mesh data, e.g. to crate a VTKmorphWatershedFilter?

Thanks for any help or hints.
Roman


-- 
Dr. Roman Grothausmann

Tomographie und Digitale Bildverarbeitung
Tomography and Digital Image Analysis

Medizinische Hochschule Hannover
Institut f?r Funktionelle und Angewandte Anatomie
OE 4120, Carl-Neuberg-Str. 1, 30625 Hannover, Deutschland

Tel. +49 511 532-2900
grothausmann.roman at mh-hannover.de
http://www.mh-hannover.de/anatomie.html
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From jochen.jankowai at gmail.com  Fri Nov 24 07:48:03 2017
From: jochen.jankowai at gmail.com (PetiteViking)
Date: Fri, 24 Nov 2017 05:48:03 -0700 (MST)
Subject: [vtkusers] Regularly sample 3D unstructured tensor grid
Message-ID: <1511527683507-0.post@n5.nabble.com>

Hello everyone!I've tried to find an answer to my problem in the forum for
quite some time now but I cannot seem to find a solution.I have an
unstructured hexahedral grid that stores one tensor per cell. What I need in
my application though is a regulargrid so I would like to regularly sample
the field.So far, this is what I am trying to (see code below).In one of the
posts here I have read that vtkProbeFilter will produce output that
corresponds to the input so I amusing a structured grid as input for which I
have computed points.And while I manage to retreive a structured grid from
the /probeFilter/, the variable /tensors/ ends up being a nullptr.auto
reader =
vtkUnstructuredGridReader::New();reader-&gt;SetFileName(file_.get().c_str());reader-&gt;Update();auto
unstructuredGrid = reader-&gt;GetOutput();// Create a grid of points to
interpolate overauto gridSize = glm::ivec3(32, 32,
32);vtkSmartPointer&lt;vtkPoints&gt; gridPoints
=&emsp;vtkSmartPointer&lt;vtkPoints&gt;::New();for (int x = 0; x &lt;
gridSize.x; x++) {&emsp;for (int y = 0; y &lt; gridSize.y; y++)
{&emsp;&emsp;for (int z = 0; z &lt; gridSize.z; z++)
{&emsp;&emsp;&emsp;gridPoints-&gt;InsertNextPoint(x, y,
z);&emsp;&emsp;}&emsp;}}// Create a dataset from the grid
pointsvtkSmartPointer&lt;vtkStructuredGrid&gt; pointSet
=&emsp;vtkSmartPointer&lt;vtkStructuredGrid&gt;::New();pointSet-&gt;SetDimensions(glm::value_ptr(gridSize));pointSet-&gt;SetPoints(gridPoints);vtkSmartPointer&lt;vtkProbeFilter&gt;
probeFilter
=&emsp;vtkSmartPointer&lt;vtkProbeFilter&gt;::New();probeFilter-&gt;SetSourceData(unstructuredGrid);probeFilter-&gt;SetInputData(pointSet);probeFilter-&gt;Update();auto
structuredGrid = probeFilter-&gt;GetStructuredGridOutput();auto pointData =
structuredGrid-&gt;GetPointData();auto tensors =
structuredGrid-&gt;GetPointData()->GetTensors();



--
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From marc.boucher88 at gmail.com  Fri Nov 24 14:45:04 2017
From: marc.boucher88 at gmail.com (Marc-Antoine Boucher)
Date: Fri, 24 Nov 2017 14:45:04 -0500
Subject: [vtkusers] vtkProcrustesAlignmentFilter and vtkPCAAnalysisFilter
Message-ID: <CAPhDBVAcnNOS9Fved2ccuJNd9q9aizF4UR-SjMeB-NOjsk-YHw@mail.gmail.com>

Hi

I want to use vtkPCAAnalysisFilter and vtkProcrustesAlignmentFilter.
According to the documentation, I need for my vtkpolydatas to have the same
number of points before using those class. My Mesh (polydata) are
segmentations of different patients and don't have the same number of
points. I used the class vtkdecimatepro but it only reduce cell and after,
my polydata have the same number of cells, but different number of points.

How can I achieve this? Is there an other tool to make different mesh
(polydata) with the same number of points?

Thanks
Marc

<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
Garanti
sans virus. www.avast.com
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
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From marc.boucher88 at gmail.com  Fri Nov 24 14:46:00 2017
From: marc.boucher88 at gmail.com (mabou88)
Date: Fri, 24 Nov 2017 12:46:00 -0700 (MST)
Subject: [vtkusers] vtkPCAAnalysisFilter/vtkProcrustesAlignmentFilter and
 number of points
Message-ID: <1511552760231-0.post@n5.nabble.com>

Hi

I want to use vtkPCAAnalysisFilter and vtkProcrustesAlignmentFilter.
According to the documentation, I need for my vtkpolydatas to have the same
number of points before using those class. My Mesh (polydata) are
segmentations of different patients and don't have the same number of
points. I used the class vtkdecimatepro but it only reduce cell and after,
my polydata have the same number of cells, but different number of points. 

How can I achieve this? Is there an other tool to make different mesh
(polydata) with the same number of points?

Thanks 
Marc



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From koopman.mk at gmail.com  Fri Nov 24 15:01:45 2017
From: koopman.mk at gmail.com (Martijn Koopman)
Date: Fri, 24 Nov 2017 21:01:45 +0100
Subject: [vtkusers] Assign colors to lines of vtkPolyData with cell type
	polygon.
In-Reply-To: <CAHDyfPCjcZgKTOTp1jUb71-X091TmXdMhVtz8uZ5pTc_3bY2yQ@mail.gmail.com>
References: <CAKX6OK4JMYYhKVxJGrBwBqS04gcGk5C39ac5+StwKysC9fNgSg@mail.gmail.com>
 <CAHDyfPCjcZgKTOTp1jUb71-X091TmXdMhVtz8uZ5pTc_3bY2yQ@mail.gmail.com>
Message-ID: <CAKX6OK5_W8JOBQ9ZJkmM3Zck1bs=wCJvvsBieTKd-f86+iCdTg@mail.gmail.com>

Indeed. I did look at the example of the the ContourTriangulator.

I fixed it by re-inserting the line cells to the vtkPolyData after running
the vtkContourTriangulator.
I did not know it was possible to mixed various cell types within one
vtkPolyData. Thought it was only possible for vtkUnstrcuturedGrid.

After that I iterate all cells and assign a color (scalar) to those of type
VTK_LINE.
Now I have constructed polygons whose exterior ring (boundary) and interior
rings (holes) have a different color.

Using vtkFeatureEdges would probably yield the same result.

Thanks

2017-11-24 3:55 GMT+01:00 kenichiro yoshimi <rccm.kyoshimi at gmail.com>:

> Hello Martijn,
>
> The vtkPolyDataConnectivityFilter provides a simple way to assign
> colors to regional rings. I hope the attached example will help you.
> Also here are the examples for reference.
> https://lorensen.github.io/VTKExamples/site/Cxx/
> Modelling/ContourTriangulator/
> https://lorensen.github.io/VTKExamples/site/Cxx/PolyData/
> ExtractOutsideSurface/
>
> Thanks
>
> 2017-11-24 5:52 GMT+09:00 Martijn Koopman <koopman.mk at gmail.com>:
> > Hello,
> >
> > I have a vtkPolyData which cell types are polygons.
> > Is it possible to color individual lines of such a vtkPolyData?
> >
> > I know it is possible to color individual cells by creating a data array,
> > setting it as cell data and calling
> > vtkPolyDataMapper::SetScalarModeToUseCellData().
> >
> > However, the cells of the polydata are polygons, not lines.
> >
> > Some background information:
> > First I read polygons from a file. Each polygon consists of an exterior
> ring
> > and zero or more interior rings.
> > I construct a vtkPolyData with these rings as lines and use
> > vtkContourTriangulator to form the polygons.
> > vtkContourTriangulator returns a vtkPolyData with polygons ofcourse.
> >
> > Afterwards I want to assign a color only to those lines that constitute
> the
> > interior and exterior rings, not the lines that make up the
> triangulation.
> >
> > Thanks in Advance,
> > Martijn
> >
> > _______________________________________________
> > Powered by www.kitware.com
> >
> > Visit other Kitware open-source projects at
> > http://www.kitware.com/opensource/opensource.html
> >
> > Please keep messages on-topic and check the VTK FAQ at:
> > http://www.vtk.org/Wiki/VTK_FAQ
> >
> > Search the list archives at: http://markmail.org/search/?q=vtkusers
> >
> > Follow this link to subscribe/unsubscribe:
> > http://public.kitware.com/mailman/listinfo/vtkusers
> >
>
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From rccm.kyoshimi at gmail.com  Fri Nov 24 22:49:52 2017
From: rccm.kyoshimi at gmail.com (kenichiro yoshimi)
Date: Sat, 25 Nov 2017 12:49:52 +0900
Subject: [vtkusers] Regularly sample 3D unstructured tensor grid
In-Reply-To: <1511527683507-0.post@n5.nabble.com>
References: <1511527683507-0.post@n5.nabble.com>
Message-ID: <CAHDyfPBaVd9Uf3W7pm2TNA8hGKsy7P+4rMaov-q=hYvPpZW7PA@mail.gmail.com>

Hi,

The standard way of retrieving PointData is not
 auto tensors = pointData->GetArray();
but
 auto tensors = pointData->GetArray(0);
 auto tensors = pointData->GetArray("array-name");
 auto tensors = pointData->GetTensors("array-name");

vtkPointData inherits from vtkDataSetAttributes and
pointData->GetArray() is trying to access the FieldData which
describes global properties of pointData, but it is null.

Thanks

2017-11-24 21:48 GMT+09:00 PetiteViking <jochen.jankowai at gmail.com>:
> Hello everyone! I've tried to find an answer to my problem in the forum for
> quite some time now but I cannot seem to find a solution. I have an
> unstructured hexahedral grid that stores one tensor per cell. What I need in
> my application though is a regulargrid so I would like to regularly sample
> the field. So far, this is what I am trying to (see code below). In one of
> the posts here I have read that vtkProbeFilter will produce output that
> corresponds to the input so I amusing a structured grid as input for which I
> have computed points. And while I manage to retreive a structured grid from
> the probeFilter, the variable tensors ends up being a nullptr. auto reader =
> vtkUnstructuredGridReader::New(); reader->SetFileName(file_.get().c_str());
> reader->Update(); auto unstructuredGrid = reader->GetOutput(); // Create a
> grid of points to interpolate over auto gridSize = glm::ivec3(32, 32, 32);
> vtkSmartPointer<vtkPoints> gridPoints = ?vtkSmartPointer<vtkPoints>::New();
> for (int x = 0; x < gridSize.x; x++) { ?for (int y = 0; y < gridSize.y; y++)
> { ??for (int z = 0; z < gridSize.z; z++) { ???gridPoints->InsertNextPoint(x,
> y, z); ??} ?} } // Create a dataset from the grid points
> vtkSmartPointer<vtkStructuredGrid> pointSet =
> ?vtkSmartPointer<vtkStructuredGrid>::New();
> pointSet->SetDimensions(glm::value_ptr(gridSize));
> pointSet->SetPoints(gridPoints); vtkSmartPointer<vtkProbeFilter> probeFilter
> = ?vtkSmartPointer<vtkProbeFilter>::New();
> probeFilter->SetSourceData(unstructuredGrid);
> probeFilter->SetInputData(pointSet); probeFilter->Update(); auto
> structuredGrid = probeFilter->GetStructuredGridOutput(); auto pointData =
> structuredGrid->GetPointData(); auto tensors =
> structuredGrid->GetPointData()->GetTensors();
> ________________________________
> Sent from the VTK - Users mailing list archive at Nabble.com.
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>

From berti_krueger at hotmail.com  Sat Nov 25 02:08:36 2017
From: berti_krueger at hotmail.com (=?iso-8859-1?Q?Berti_Kr=FCger?=)
Date: Sat, 25 Nov 2017 07:08:36 +0000
Subject: [vtkusers] VTK Anisotropic Texture Filtering / MipMaps / reducing
 texture aliasing
Message-ID: <AM4PR06MB14586E3E5D33B295574CF97F81270@AM4PR06MB1458.eurprd06.prod.outlook.com>

Hello Everyone!

I'm currently making a visualization program where I've got a
groundplane with a fine detailed checkerboard-like texture on it. The
whole scene can be zoomed in and out. Since the resolution of the
VTK-render window and the texture differ quite a bit, i get a lot of
aliasing.

In plain opengl i would use mipmaps and/or anisotropic filtering to get
rid of it but unfortunately i haven't found anything in the vtk-texture
class to archive this.

For whole screen antialiasing i am already using the fxaa
filter which works really nice and helps also a little bit with
texture-aliasing but is of course not a replacement for
resolution dependend texture-filtering.

So my question is, how to reduce aliasing in VTK with fine-detailed
textures? 


Thank you very much in advance,

Berti

From rccm.kyoshimi at gmail.com  Sat Nov 25 04:38:18 2017
From: rccm.kyoshimi at gmail.com (kenichiro yoshimi)
Date: Sat, 25 Nov 2017 18:38:18 +0900
Subject: [vtkusers] vtkplanesource
In-Reply-To: <tencent_FC1681775BDB730D50221319C73287810F06@qq.com>
References: <tencent_FC1681775BDB730D50221319C73287810F06@qq.com>
Message-ID: <CAHDyfPCiwwGe7ZTfkoRTJVjqWNCUF-20sP32MYcFe8uVJXyC9g@mail.gmail.com>

Hi ????,

vtkPlaneSource is defined by the three points Origin, Point1 and Point2
where Origin->Point1 is indicating the first axis and Origin->Point2 is the
second for the plane. According to the documentation, SetCenter() method
can not be used for defining the plane. Instead, it is used to move the
plane to a new center point.
https://www.vtk.org/doc/nightly/html/classvtkPlaneSource.html

Best

2017-11-24 17:11 GMT+09:00 ???? <278124177 at qq.com>:

>  hi
>   i  try to use vtkPlaneSource to make ge plane,but when i set the point1
> ant point2 ande center, i finde the plane does not contain all the three
> points , how can i make the plane contains all the three points:
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>
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From ken.martin at kitware.com  Sat Nov 25 09:29:48 2017
From: ken.martin at kitware.com (Ken Martin)
Date: Sat, 25 Nov 2017 09:29:48 -0500
Subject: [vtkusers] VTK Anisotropic Texture Filtering / MipMaps /
 reducing texture aliasing
In-Reply-To: <AM4PR06MB14586E3E5D33B295574CF97F81270@AM4PR06MB1458.eurprd06.prod.outlook.com>
References: <AM4PR06MB14586E3E5D33B295574CF97F81270@AM4PR06MB1458.eurprd06.prod.outlook.com>
Message-ID: <CANXz0Sa4MRiXLfwG5AjN6Pd5VSXQU6_BpH5K3O1XONAKWZADDw@mail.gmail.com>

Try turning on mipmaps for your texture before you render them. Support for
them was added a while back. That should help some.

  //@{
  /**
   * Turn on/off use of mipmaps when rendering.
   */
  vtkGetMacro(Mipmap, bool);
  vtkSetMacro(Mipmap, bool);
  vtkBooleanMacro(Mipmap, bool);
  //@}


On Sat, Nov 25, 2017 at 2:08 AM, Berti Kr?ger <berti_krueger at hotmail.com>
wrote:

> Hello Everyone!
>
> I'm currently making a visualization program where I've got a
> groundplane with a fine detailed checkerboard-like texture on it. The
> whole scene can be zoomed in and out. Since the resolution of the
> VTK-render window and the texture differ quite a bit, i get a lot of
> aliasing.
>
> In plain opengl i would use mipmaps and/or anisotropic filtering to get
> rid of it but unfortunately i haven't found anything in the vtk-texture
> class to archive this.
>
> For whole screen antialiasing i am already using the fxaa
> filter which works really nice and helps also a little bit with
> texture-aliasing but is of course not a replacement for
> resolution dependend texture-filtering.
>
> So my question is, how to reduce aliasing in VTK with fine-detailed
> textures?
>
>
> Thank you very much in advance,
>
> Berti
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
not the intended recipient, any disclosure, copying, distribution or any
action taken in reliance on it is prohibited and may be unlawful. If you
received this communication in error please notify us immediately and
destroy the original message.  Thank you.
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From alican1812 at hotmail.com  Sat Nov 25 16:37:18 2017
From: alican1812 at hotmail.com (alican)
Date: Sat, 25 Nov 2017 14:37:18 -0700 (MST)
Subject: [vtkusers] How to color 2 sides of a plane by different colors?
Message-ID: <1511645838305-0.post@n5.nabble.com>

I have seen these example : VTK/Examples/Cxx/PolyData/ColorCellsWithRGB
<https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/ColorCellsWithRGB>  

and I understand how to color different cells. 
But is it possible to color 2 sides of the plane in different colors?



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From berti_krueger at hotmail.com  Sun Nov 26 02:32:30 2017
From: berti_krueger at hotmail.com (=?iso-8859-1?Q?Berti_Kr=FCger?=)
Date: Sun, 26 Nov 2017 07:32:30 +0000
Subject: [vtkusers] VTK Anisotropic Texture Filtering / MipMaps /
 reducing texture aliasing
In-Reply-To: <CANXz0Sa4MRiXLfwG5AjN6Pd5VSXQU6_BpH5K3O1XONAKWZADDw@mail.gmail.com>
References: <AM4PR06MB14586E3E5D33B295574CF97F81270@AM4PR06MB1458.eurprd06.prod.outlook.com>,
 <CANXz0Sa4MRiXLfwG5AjN6Pd5VSXQU6_BpH5K3O1XONAKWZADDw@mail.gmail.com>
Message-ID: <AM4PR06MB1458EF3217A7A8FBF0C17FDB81240@AM4PR06MB1458.eurprd06.prod.outlook.com>

Hello Ken,
thank you very much for your reply.

If I understand you correctly the developer macros you have shown in
your reply should automatically generate an accessor / mutator
method called "SetMipmap(bool flag)" in the vtkTexture class.

Unfortunately i could not find such a method in the actual release
versions of VTK (e.g. version 7.1.1 or 8.0.1).?


Only in the upcoming VTK 8.1.0rc version there are:

virtual bool 	GetMipmap ()
virtual void 	SetMipmap (bool)?
virtual void 	MipmapOn ()?
virtual void 	MipmapOff ()

which seems to be what i need.


Did i understand you wrong (i am sorry if this is a stupid question
but i am new to vtk) ?


Thank you very much in advance,


Berti



Von: Ken Martin <ken.martin at kitware.com>
Gesendet: Samstag, 25. November 2017 14:29
An: Berti Kr?ger
Cc: vtkusers at vtk.org
Betreff: Re: [vtkusers] VTK Anisotropic Texture Filtering / MipMaps / reducing texture aliasing
? 

Try turning on mipmaps for your texture before you render them. Support for them was added a while back. That should help some.



? //@{
? /**
? ?* Turn on/off use of mipmaps when rendering.
? ?*/
? vtkGetMacro(Mipmap, bool);
? vtkSetMacro(Mipmap, bool);
? vtkBooleanMacro(Mipmap, bool);
? //@}

  


On Sat, Nov 25, 2017 at 2:08 AM, Berti Kr?ger  <berti_krueger at hotmail.com> wrote:
 Hello Everyone!

I'm currently making a visualization program where I've got a
groundplane with a fine detailed checkerboard-like texture on it. The
whole scene can be zoomed in and out. Since the resolution of the
VTK-render window and the texture differ quite a bit, i get a lot of
aliasing.

In plain opengl i would use mipmaps and/or anisotropic filtering to get
rid of it but unfortunately i haven't found anything in the vtk-texture
class to archive this.

For whole screen antialiasing i am already using the fxaa
filter which works really nice and helps also a little bit with
texture-aliasing but is of course not a replacement for
resolution dependend texture-filtering.

So my question is, how to reduce aliasing in VTK with fine-detailed
textures?


Thank you very much in advance,

Berti
_______________________________________________
Powered by www.kitware.com

Visit other Kitware open-source projects at  http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at:  http://www.vtk.org/Wiki/VTK_FAQ

Search the list archives at:  http://markmail.org/search/?q=vtkusers

Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/vtkusers
 



 -- 



Ken Martin PhD
Distinguished Engineer
Kitware Inc.

28 Corporate Drive
Clifton Park NY 12065



This communication, including all attachments, contains confidential and legally privileged information, and it is intended only for the use of the addressee.? Access to this email by anyone else  is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken in reliance on it is prohibited and may be unlawful. If you received this communication in error please notify us immediately and destroy the  original message.? Thank you.         

From ken.martin at kitware.com  Sun Nov 26 10:35:38 2017
From: ken.martin at kitware.com (Ken Martin)
Date: Sun, 26 Nov 2017 10:35:38 -0500
Subject: [vtkusers] VTK Anisotropic Texture Filtering / MipMaps /
 reducing texture aliasing
In-Reply-To: <AM4PR06MB1458EF3217A7A8FBF0C17FDB81240@AM4PR06MB1458.eurprd06.prod.outlook.com>
References: <AM4PR06MB14586E3E5D33B295574CF97F81270@AM4PR06MB1458.eurprd06.prod.outlook.com>
 <CANXz0Sa4MRiXLfwG5AjN6Pd5VSXQU6_BpH5K3O1XONAKWZADDw@mail.gmail.com>
 <AM4PR06MB1458EF3217A7A8FBF0C17FDB81240@AM4PR06MB1458.eurprd06.prod.outlook.com>
Message-ID: <CANXz0SZ5thhQyoA3R8yPOjNKZaCWA5-G1VYVYV2K0qo5JmUwyA@mail.gmail.com>

Yes, the feature was added recently - Ken

On Sun, Nov 26, 2017 at 2:32 AM, Berti Kr?ger <berti_krueger at hotmail.com>
wrote:

> Hello Ken,
> thank you very much for your reply.
>
> If I understand you correctly the developer macros you have shown in
> your reply should automatically generate an accessor / mutator
> method called "SetMipmap(bool flag)" in the vtkTexture class.
>
> Unfortunately i could not find such a method in the actual release
> versions of VTK (e.g. version 7.1.1 or 8.0.1).
>
>
> Only in the upcoming VTK 8.1.0rc version there are:
>
> virtual bool    GetMipmap ()
> virtual void    SetMipmap (bool)
> virtual void    MipmapOn ()
> virtual void    MipmapOff ()
>
> which seems to be what i need.
>
>
> Did i understand you wrong (i am sorry if this is a stupid question
> but i am new to vtk) ?
>
>
> Thank you very much in advance,
>
>
> Berti
>
>
>
> Von: Ken Martin <ken.martin at kitware.com>
> Gesendet: Samstag, 25. November 2017 14:29
> An: Berti Kr?ger
> Cc: vtkusers at vtk.org
> Betreff: Re: [vtkusers] VTK Anisotropic Texture Filtering / MipMaps /
> reducing texture aliasing
>
>
> Try turning on mipmaps for your texture before you render them. Support
> for them was added a while back. That should help some.
>
>
>
>   //@{
>   /**
>    * Turn on/off use of mipmaps when rendering.
>    */
>   vtkGetMacro(Mipmap, bool);
>   vtkSetMacro(Mipmap, bool);
>   vtkBooleanMacro(Mipmap, bool);
>   //@}
>
>
>
>
> On Sat, Nov 25, 2017 at 2:08 AM, Berti Kr?ger  <berti_krueger at hotmail.com>
> wrote:
>  Hello Everyone!
>
> I'm currently making a visualization program where I've got a
> groundplane with a fine detailed checkerboard-like texture on it. The
> whole scene can be zoomed in and out. Since the resolution of the
> VTK-render window and the texture differ quite a bit, i get a lot of
> aliasing.
>
> In plain opengl i would use mipmaps and/or anisotropic filtering to get
> rid of it but unfortunately i haven't found anything in the vtk-texture
> class to archive this.
>
> For whole screen antialiasing i am already using the fxaa
> filter which works really nice and helps also a little bit with
> texture-aliasing but is of course not a replacement for
> resolution dependend texture-filtering.
>
> So my question is, how to reduce aliasing in VTK with fine-detailed
> textures?
>
>
> Thank you very much in advance,
>
> Berti
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at  http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at:  http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>
>
>
>  --
>
>
>
> Ken Martin PhD
> Distinguished Engineer
> Kitware Inc.
>
> 28 Corporate Drive
> Clifton Park NY 12065
>
>
>
> This communication, including all attachments, contains confidential and
> legally privileged information, and it is intended only for the use of the
> addressee.  Access to this email by anyone else  is unauthorized. If you
> are not the intended recipient, any disclosure, copying, distribution or
> any action taken in reliance on it is prohibited and may be unlawful. If
> you received this communication in error please notify us immediately and
> destroy the  original message.  Thank you.




-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
not the intended recipient, any disclosure, copying, distribution or any
action taken in reliance on it is prohibited and may be unlawful. If you
received this communication in error please notify us immediately and
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From bacci.davide at gmail.com  Sun Nov 26 10:46:36 2017
From: bacci.davide at gmail.com (davide bacci)
Date: Sun, 26 Nov 2017 16:46:36 +0100
Subject: [vtkusers] Activiz 7.1.1 Binary Build
In-Reply-To: <d4e309bc984b46c8b01f6e749a374b24@cascadeacoustic.com>
References: <d4e309bc984b46c8b01f6e749a374b24@cascadeacoustic.com>
Message-ID: <CAKXtgO7SQPaYNtuH9bniYP6idx+eWY+mwUpUgRBXR7U+xp0Wyg@mail.gmail.com>

 Thanks Mark for sharing!

I'm trying to build ActiViz source against VTK-7.1.1 too, but with:

Visual Studio 2008 for gcc-xml and Mummy
Visual Studio 2012 Generator for VTK and ActiViz
Default C/C++ compiler
with .NET 3.5 CSC compiler ( for compatibility reason, but I could switch
to 4.0 version )
Windows 10 64 bit
CMake 3.4.1

In some way or another I finally compiled all, but it doesn't work :)
I created a simple project for testing, I've got an
AccessViolationException when calling vtkRenderer.Render()

   public virtual void Render()
   {
      vtkRenderer_Render_93(this.GetCppThis());
   }

Have you any suggestion?

I also tried to use your build version ( thanks another time! ) but I've
got an DllNotFoundException for Kitware.VTK.vtkCommonCore.Unmanaged.dll

Maybe I missed something important :)

Davide Bacci.


Il 09/09/2017 07:23, Mark DeArman ha scritto:

Since people were asking, I have uploaded the binaries for people to test
out.
I am building with Intel C++ 16, an I have not yet sorted out the redist
issues with the standard Activiz installer.
Seems to be working fine with my standard Wix template.

I updated the VTK repo with a minor change to check for GCCXML during
preprocessing.

I added CMakeCache.sample to each repo, to illustrate a typical
configuration.

https://github.com/dearman/activizdotnet

Visual Studio 2013 / Intel C++ 2016 / CSC .NET 4.0 (x86) Debug
http://www.cascadeacoustic.com/files/downloads/General/ActiViz_711d.zip

When I get a little more free time I'll add a x64 build and update the
README.

Mark DeArman
Cascade Acoustic Research
http://www.cascadeacoustic.com
(253) 200-5353

<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
Mail
priva di virus. www.avg.com
<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
<#m_-8060219078014299255_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>


_______________________________________________
Powered by www.kitware.com

Visit other Kitware open-source projects at
http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at:
http://www.vtk.org/Wiki/VTK_FAQ

Search the list archives at: http://markmail.org/search/?q=vtkusers

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From simakov.w at gmail.com  Sun Nov 26 12:40:48 2017
From: simakov.w at gmail.com (Met@ll)
Date: Sun, 26 Nov 2017 10:40:48 -0700 (MST)
Subject: [vtkusers]
	=?utf-8?q?=E2=80=8B_Rotate_the_vector_along_the_X=2C_Y?=
	=?utf-8?b?LCBaIGF4ZXMu?=
In-Reply-To: <1510595758437-0.post@n5.nabble.com>
References: <CAHDsG9N8CofxFoN0Gsw2T8aqUd2sbUuwtbwSNNx5ijM90bOs5w@mail.gmail.com>
 <CAHDsG9N7Xhqie3LbOqqB0NEucTShRTsh_j20zjQ6S++zWsD42w@mail.gmail.com>
 <1510079819282-0.post@n5.nabble.com>
 <CAJk8dSAdioQSmZysRmezaVbK-CKaWUwha6jS=3yja88_OtSEjA@mail.gmail.com>
 <1510595758437-0.post@n5.nabble.com>
Message-ID: <1511718048012-0.post@n5.nabble.com>

Hello.
actor->SetOrientation (angleX, angleY, angleZ); - That's what I was looking
for.
It should be noted that the absolute angle, and not the offset, is
indicated.



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From andrew.amaclean at gmail.com  Sun Nov 26 15:43:54 2017
From: andrew.amaclean at gmail.com (Andrew Maclean)
Date: Mon, 27 Nov 2017 07:43:54 +1100
Subject: [vtkusers] How to color 2 sides of a plane by different colors?
	(alican)
Message-ID: <CAHDsG9M+7+b+udd_VmQfvrRZzbjf=6hvqejdTr9bZs5ipSFE+w@mail.gmail.com>

Think of a plane has having zero thickness so it can have only one colour.
One approach is to:
1) Create two planes.
2) Offset one plane from the other by a small amount. You need to judge by
how much.
3) Colour each plane's actor a different colour.
4) Render and interact.

This site has lots of examples that you may find useful: https://lorensen.
github.io/VTKExamples/site/


> ---------- Forwarded message ----------
> From: alican <alican1812 at hotmail.com>
> To: vtkusers at vtk.org
> Cc:
> Bcc:
> Date: Sat, 25 Nov 2017 14:37:18 -0700 (MST)
> Subject: [vtkusers] How to color 2 sides of a plane by different colors?
> I have seen these example : VTK/Examples/Cxx/PolyData/ColorCellsWithRGB
> <https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/ColorCellsWithRGB>
>
> and I understand how to color different cells.
> But is it possible to color 2 sides of the plane in different colors?
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
>
>
>
> --
___________________________________________
Andrew J. P. Maclean

___________________________________________
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From lasso at queensu.ca  Sun Nov 26 16:54:11 2017
From: lasso at queensu.ca (Andras Lasso)
Date: Sun, 26 Nov 2017 21:54:11 +0000
Subject: [vtkusers] How to color 2 sides of a plane by different
	colors?	(alican)
In-Reply-To: <CAHDsG9M+7+b+udd_VmQfvrRZzbjf=6hvqejdTr9bZs5ipSFE+w@mail.gmail.com>
References: <CAHDsG9M+7+b+udd_VmQfvrRZzbjf=6hvqejdTr9bZs5ipSFE+w@mail.gmail.com>
Message-ID: <057fec3a-9bee-4695-b3ad-5b539e5e7629@queensu.ca>

You can set different properties for front and back face of the mesh. See https://www.vtk.org/doc/nightly/html/classvtkActor.html#a67e6053de538c91fd20a496b24172dbd

Andras
________________________________
From: Andrew Maclean <andrew.amaclean at gmail.com>
Sent: Nov 26, 2017 3:44 PM
To: vtk
Cc: alican
Subject: Re: [vtkusers] How to color 2 sides of a plane by different colors? (alican)

Think of a plane has having zero thickness so it can have only one colour.
One approach is to:
1) Create two planes.
2) Offset one plane from the other by a small amount. You need to judge by how much.
3) Colour each plane's actor a different colour.
4) Render and interact.

This site has lots of examples that you may find useful: https://lorensen.github.io/VTKExamples/site/<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Florensen.github.io%2FVTKExamples%2Fsite%2F&data=02%7C01%7Classo%40queensu.ca%7C4e4e1233eed14fb7582908d5350e830e%7Cd61ecb3b38b142d582c4efb2838b925c%7C1%7C0%7C636473258804797130&sdata=3ze%2BxD6j6kvN%2B%2F8%2BxV6nyFxdMKDRzynN5ItlOzlJn3g%3D&reserved=0>


---------- Forwarded message ----------
From: alican <alican1812 at hotmail.com<mailto:alican1812 at hotmail.com>>
To: vtkusers at vtk.org<mailto:vtkusers at vtk.org>
Cc:
Bcc:
Date: Sat, 25 Nov 2017 14:37:18 -0700 (MST)
Subject: [vtkusers] How to color 2 sides of a plane by different colors?
I have seen these example : VTK/Examples/Cxx/PolyData/ColorCellsWithRGB
<https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/ColorCellsWithRGB<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.vtk.org%2FWiki%2FVTK%2FExamples%2FCxx%2FPolyData%2FColorCellsWithRGB&data=02%7C01%7Classo%40queensu.ca%7C4e4e1233eed14fb7582908d5350e830e%7Cd61ecb3b38b142d582c4efb2838b925c%7C1%7C0%7C636473258804797130&sdata=zV1gDfw%2BnadYhcDfyeEGzYQjZXS1em8zKq%2FL7ELYYu4%3D&reserved=0>>

and I understand how to color different cells.
But is it possible to color 2 sides of the plane in different colors?



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fvtk.1045678.n5.nabble.com%2FVTK-Users-f1224199.html&data=02%7C01%7Classo%40queensu.ca%7C4e4e1233eed14fb7582908d5350e830e%7Cd61ecb3b38b142d582c4efb2838b925c%7C1%7C0%7C636473258804797130&sdata=yc4wwWrajiVf6AYufDW0RPtg21RVW1%2FDBzh51Uv8VMs%3D&reserved=0>



--
___________________________________________
Andrew J. P. Maclean

___________________________________________
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From bill.lorensen at gmail.com  Sun Nov 26 17:17:16 2017
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Sun, 26 Nov 2017 17:17:16 -0500
Subject: [vtkusers] How to color 2 sides of a plane by different colors?
	(alican)
In-Reply-To: <057fec3a-9bee-4695-b3ad-5b539e5e7629@queensu.ca>
References: <CAHDsG9M+7+b+udd_VmQfvrRZzbjf=6hvqejdTr9bZs5ipSFE+w@mail.gmail.com>
 <057fec3a-9bee-4695-b3ad-5b539e5e7629@queensu.ca>
Message-ID: <CADZJ4hPKZvpTR25L_O4Rp3GDgHUP113ZrspMwE4iDePa6E1G7A@mail.gmail.com>

I think they want to color each cell, not the entire actor?


On Sun, Nov 26, 2017 at 4:54 PM, Andras Lasso <lasso at queensu.ca> wrote:
> You can set different properties for front and back face of the mesh. See
> https://www.vtk.org/doc/nightly/html/classvtkActor.html#a67e6053de538c91fd20a496b24172dbd
>
> Andras
> ________________________________
> From: Andrew Maclean <andrew.amaclean at gmail.com>
> Sent: Nov 26, 2017 3:44 PM
> To: vtk
> Cc: alican
> Subject: Re: [vtkusers] How to color 2 sides of a plane by different colors?
> (alican)
>
> Think of a plane has having zero thickness so it can have only one colour.
> One approach is to:
> 1) Create two planes.
> 2) Offset one plane from the other by a small amount. You need to judge by
> how much.
> 3) Colour each plane's actor a different colour.
> 4) Render and interact.
>
> This site has lots of examples that you may find useful:
> https://lorensen.github.io/VTKExamples/site/
>
>>
>> ---------- Forwarded message ----------
>> From: alican <alican1812 at hotmail.com>
>> To: vtkusers at vtk.org
>> Cc:
>> Bcc:
>> Date: Sat, 25 Nov 2017 14:37:18 -0700 (MST)
>> Subject: [vtkusers] How to color 2 sides of a plane by different colors?
>> I have seen these example : VTK/Examples/Cxx/PolyData/ColorCellsWithRGB
>> <https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/ColorCellsWithRGB>
>>
>> and I understand how to color different cells.
>> But is it possible to color 2 sides of the plane in different colors?
>>
>>
>>
>> --
>> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
>>
>>
>>
> --
> ___________________________________________
> Andrew J. P. Maclean
>
> ___________________________________________
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



-- 
Unpaid intern in BillsBasement at noware dot com

From alican1812 at hotmail.com  Sun Nov 26 17:44:46 2017
From: alican1812 at hotmail.com (alican)
Date: Sun, 26 Nov 2017 15:44:46 -0700 (MST)
Subject: [vtkusers] How to color 2 sides of a plane by different colors?
	(alican)
In-Reply-To: <CADZJ4hPKZvpTR25L_O4Rp3GDgHUP113ZrspMwE4iDePa6E1G7A@mail.gmail.com>
References: <CAHDsG9M+7+b+udd_VmQfvrRZzbjf=6hvqejdTr9bZs5ipSFE+w@mail.gmail.com>
 <057fec3a-9bee-4695-b3ad-5b539e5e7629@queensu.ca>
 <CADZJ4hPKZvpTR25L_O4Rp3GDgHUP113ZrspMwE4iDePa6E1G7A@mail.gmail.com>
Message-ID: <1511736286907-0.post@n5.nabble.com>

To color 2 sides of the entire actor is good enough, so Andras' answer did
the trick.
Thanks a lot.



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From berti_krueger at hotmail.com  Mon Nov 27 00:29:10 2017
From: berti_krueger at hotmail.com (=?utf-8?B?QmVydGkgS3LDvGdlcg==?=)
Date: Mon, 27 Nov 2017 05:29:10 +0000
Subject: [vtkusers] VTK Anisotropic Texture Filtering / MipMaps /
 reducing texture aliasing
In-Reply-To: <CANXz0SZ5thhQyoA3R8yPOjNKZaCWA5-G1VYVYV2K0qo5JmUwyA@mail.gmail.com>
References: <AM4PR06MB14586E3E5D33B295574CF97F81270@AM4PR06MB1458.eurprd06.prod.outlook.com>
 <CANXz0Sa4MRiXLfwG5AjN6Pd5VSXQU6_BpH5K3O1XONAKWZADDw@mail.gmail.com>
 <AM4PR06MB1458EF3217A7A8FBF0C17FDB81240@AM4PR06MB1458.eurprd06.prod.outlook.com>
 <CANXz0SZ5thhQyoA3R8yPOjNKZaCWA5-G1VYVYV2K0qo5JmUwyA@mail.gmail.com>
Message-ID: <AM4PR06MB1553FD102F43AC5F2997163C81250@AM4PR06MB1553.eurprd06.prod.outlook.com>

Hello Ken,
thank you very much again for your help. 

With VTK 8.1.0rc everything works perfectly.

But since it is only a release candidate (which might not work
completely ok in all situations), do you know roughly when there will
be a final release version of VTK 8.1?


Another thing: I use VTK together with Qt via the QVTKWidget in my
application and when i run it, i now get the following deprecation
warning:

"QVTKWidget was deprecated for VTK 8.1 and will be removed in a future
version."

What is the proper replacement for QVTKWidget? (I installed
libqtvtkwidget in the Qt Designer and simply dragged it on the form,
it was the only vtk related widget there).


Thanks again,
Berti



> Yes, the feature was added recently - Ken
> 
> On Sun, Nov 26, 2017 at 2:32 AM, Berti Kr?ger
> <berti_krueger at hotmail.com> wrote:
> 
> > Hello Ken,
> > thank you very much for your reply.
> >
> > If I understand you correctly the developer macros you have shown in
> > your reply should automatically generate an accessor / mutator
> > method called "SetMipmap(bool flag)" in the vtkTexture class.
> >
> > Unfortunately i could not find such a method in the actual release
> > versions of VTK (e.g. version 7.1.1 or 8.0.1).
> >
> >
> > Only in the upcoming VTK 8.1.0rc version there are:
> >
> > virtual bool    GetMipmap ()
> > virtual void    SetMipmap (bool)
> > virtual void    MipmapOn ()
> > virtual void    MipmapOff ()
> >
> > which seems to be what i need.
> >
> >
> > Did i understand you wrong (i am sorry if this is a stupid question
> > but i am new to vtk) ?
> >
> >
> > Thank you very much in advance,
> >
> >
> > Berti
> >
> >
> >
> > Von: Ken Martin <ken.martin at kitware.com>
> > Gesendet: Samstag, 25. November 2017 14:29
> > An: Berti Kr?ger
> > Cc: vtkusers at vtk.org
> > Betreff: Re: [vtkusers] VTK Anisotropic Texture Filtering /
> > MipMaps / reducing texture aliasing
> >
> >
> > Try turning on mipmaps for your texture before you render them.
> > Support for them was added a while back. That should help some.
> >
> >
> >
> >   //@{
> >   /**
> >    * Turn on/off use of mipmaps when rendering.
> >    */
> >   vtkGetMacro(Mipmap, bool);
> >   vtkSetMacro(Mipmap, bool);
> >   vtkBooleanMacro(Mipmap, bool);
> >   //@}
> >
> >
> >
> >
> > On Sat, Nov 25, 2017 at 2:08 AM, Berti Kr?ger
> > <berti_krueger at hotmail.com> wrote:
> >  Hello Everyone!
> >
> > I'm currently making a visualization program where I've got a
> > groundplane with a fine detailed checkerboard-like texture on it.
> > The whole scene can be zoomed in and out. Since the resolution of
> > the VTK-render window and the texture differ quite a bit, i get a
> > lot of aliasing.
> >
> > In plain opengl i would use mipmaps and/or anisotropic filtering to
> > get rid of it but unfortunately i haven't found anything in the
> > vtk-texture class to archive this.
> >
> > For whole screen antialiasing i am already using the fxaa
> > filter which works really nice and helps also a little bit with
> > texture-aliasing but is of course not a replacement for
> > resolution dependend texture-filtering.
> >
> > So my question is, how to reduce aliasing in VTK with fine-detailed
> > textures?
> >
> >
> > Thank you very much in advance,
> >
> > Berti
> > _______________________________________________
> > Powered by www.kitware.com
> >
> > Visit other Kitware open-source projects at  http://www.kitware.com/
> > opensource/opensource.html
> >
> > Please keep messages on-topic and check the VTK FAQ at:
> > http://www.vtk.org/Wiki/VTK_FAQ
> >
> > Search the list archives at:  http://markmail.org/search/?q=vtkusers
> >
> > Follow this link to subscribe/unsubscribe:
> > http://public.kitware.com/mailman/listinfo/vtkusers
> >
> >
> >
> >
> >  --
> >
> >
> >
> > Ken Martin PhD
> > Distinguished Engineer
> > Kitware Inc.
> >
> > 28 Corporate Drive
> > Clifton Park NY 12065
> >
> >
> >
> > This communication, including all attachments, contains
> > confidential and legally privileged information, and it is intended
> > only for the use of the addressee.  Access to this email by anyone
> > else  is unauthorized. If you are not the intended recipient, any
> > disclosure, copying, distribution or any action taken in reliance
> > on it is prohibited and may be unlawful. If you received this
> > communication in error please notify us immediately and destroy
> > the  original message.  Thank you.  
> 
> 
> 
> 


From satwik.k8 at gmail.com  Mon Nov 27 01:12:42 2017
From: satwik.k8 at gmail.com (Satwik)
Date: Sun, 26 Nov 2017 23:12:42 -0700 (MST)
Subject: [vtkusers] CT Gantry Tilt correction
Message-ID: <1511763162567-0.post@n5.nabble.com>

Hi users,

How can i make CT gantry tilt correction using vtk.

I tried using vtkDICOMCTRectifier, but i was not able to compile vtkDICOM
module.
ERROR: can't able to find vtkDICOMModule.h.

Regards,
Satwik k



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From zjinger at hotmail.com  Mon Nov 27 07:24:58 2017
From: zjinger at hotmail.com (Zou Jing)
Date: Mon, 27 Nov 2017 12:24:58 +0000
Subject: [vtkusers] cannot find ICPRegistraitonFilter.h
Message-ID: <BL2PR06MB22921402335F0C0C36BCFD43A8250@BL2PR06MB2292.namprd06.prod.outlook.com>

Dear all,

I am a novice of VTK. I want to register 3D image using ICP algorithm.

But I cannot find ICPRegistraitonFilter.h in vtk 8.0.1

I am looking forward to your answer.

Thank you very much.

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From petr.gazak at lim.cz  Mon Nov 27 08:45:00 2017
From: petr.gazak at lim.cz (pegga)
Date: Mon, 27 Nov 2017 06:45:00 -0700 (MST)
Subject: [vtkusers] Render big data
Message-ID: <1511790300780-0.post@n5.nabble.com>

Hi all,

I am dealing with large data rendering. My data is typically 3D matrix of
intensity values (int or float).
Data can be quite large - several GB sometimes even more.

Issue 1)
When trying to render data bigger than 2000 x 2000 x N (X, Y, Z dimension) I
get OpenGL errors. When data is smaller in X and Y (let say 1700 x 1700)
everything goes well.

Issue 2)
How to proceed when rendering data which is obviously too large to fit GPU?
I thought about rendering data block by block sequentially, but I cannot
find right tools.

Thanks,
Petr



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From allison.vacanti at kitware.com  Mon Nov 27 09:10:32 2017
From: allison.vacanti at kitware.com (Allie Vacanti)
Date: Mon, 27 Nov 2017 09:10:32 -0500
Subject: [vtkusers] vtkTextActor render utf8 characters not working
In-Reply-To: <1511321483500-0.post@n5.nabble.com>
References: <1511321483500-0.post@n5.nabble.com>
Message-ID: <CA+=e1ovRA2ED2wZRhvSC-+QZcaw1o=B2KCpmXn+m60crQ_2Oww@mail.gmail.com>

Are you sure the font file includes the glyphs in that UTF8 string? That's
the only thing I can think of that would prevent that string from rendering.

On Tue, Nov 21, 2017 at 10:31 PM, Frank Sea <fromseattle at gmail.com> wrote:

> Hi All,
>
> I built the test code at the following location:
> https://gitlab.kitware.com/vtk/vtk/blob/master/Rendering/
> FreeType/Testing/Cxx/TestMathTextFreeTypeTextRenderer.cxx#L184
>
> which tests displaying utf8 chars like following:
>     // UTF-8 freetype handling:
>     vtkNew<vtkTextActor> actor15;
>     actor15->GetTextProperty()->SetFontFamily(VTK_FONT_FILE);
>     actor15->GetTextProperty()->SetFontFile(uncodeFontFile.c_str());
>     actor15->GetTextProperty()->SetJustificationToCentered();
>     actor15->GetTextProperty()->SetVerticalJustificationToCentered();
>     actor15->GetTextProperty()->SetFontSize(18);
>     actor15->GetTextProperty()->SetColor(0.0, 1.0, 0.7);
>     actor15->SetInput("UTF-8 FreeType:
> \xce\xa8\xd2\x94\xd2\x96\xd1\x84\xd2\xbe");
>     actor15->SetPosition(10, 110);
>
> I provided font file from
> https://github.com/aosp-mirror/platform_frameworks_
> base/blob/master/data/fonts/DroidSansFallbackFull.ttf
>
> But the text is not rendered. It's blank for that one. Anyone know the
> reason? I am on Windows 10.
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
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From dave.demarle at kitware.com  Mon Nov 27 09:38:53 2017
From: dave.demarle at kitware.com (David E DeMarle)
Date: Mon, 27 Nov 2017 09:38:53 -0500
Subject: [vtkusers] VTK Anisotropic Texture Filtering / MipMaps /
 reducing texture aliasing
In-Reply-To: <AM4PR06MB1553FD102F43AC5F2997163C81250@AM4PR06MB1553.eurprd06.prod.outlook.com>
References: <AM4PR06MB14586E3E5D33B295574CF97F81270@AM4PR06MB1458.eurprd06.prod.outlook.com>
 <CANXz0Sa4MRiXLfwG5AjN6Pd5VSXQU6_BpH5K3O1XONAKWZADDw@mail.gmail.com>
 <AM4PR06MB1458EF3217A7A8FBF0C17FDB81240@AM4PR06MB1458.eurprd06.prod.outlook.com>
 <CANXz0SZ5thhQyoA3R8yPOjNKZaCWA5-G1VYVYV2K0qo5JmUwyA@mail.gmail.com>
 <AM4PR06MB1553FD102F43AC5F2997163C81250@AM4PR06MB1553.eurprd06.prod.outlook.com>
Message-ID: <CANjZAi9wMT7_=_xPDb4XD6NoODQBvA556BZfdaUw=JmmQ5F2Ow@mail.gmail.com>

8.1.0 will be out sometime in December.

The successor to QVTKWidget is QVTKOpenGLWidget.

David E DeMarle
Kitware, Inc.
Principal Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909


On Mon, Nov 27, 2017 at 12:29 AM, Berti Kr?ger
<berti_krueger at hotmail.com> wrote:
> Hello Ken,
> thank you very much again for your help.
>
> With VTK 8.1.0rc everything works perfectly.
>
> But since it is only a release candidate (which might not work
> completely ok in all situations), do you know roughly when there will
> be a final release version of VTK 8.1?
>
>
> Another thing: I use VTK together with Qt via the QVTKWidget in my
> application and when i run it, i now get the following deprecation
> warning:
>
> "QVTKWidget was deprecated for VTK 8.1 and will be removed in a future
> version."
>
> What is the proper replacement for QVTKWidget? (I installed
> libqtvtkwidget in the Qt Designer and simply dragged it on the form,
> it was the only vtk related widget there).
>
>
> Thanks again,
> Berti
>
>
>
>> Yes, the feature was added recently - Ken
>>
>> On Sun, Nov 26, 2017 at 2:32 AM, Berti Kr?ger
>> <berti_krueger at hotmail.com> wrote:
>>
>> > Hello Ken,
>> > thank you very much for your reply.
>> >
>> > If I understand you correctly the developer macros you have shown in
>> > your reply should automatically generate an accessor / mutator
>> > method called "SetMipmap(bool flag)" in the vtkTexture class.
>> >
>> > Unfortunately i could not find such a method in the actual release
>> > versions of VTK (e.g. version 7.1.1 or 8.0.1).
>> >
>> >
>> > Only in the upcoming VTK 8.1.0rc version there are:
>> >
>> > virtual bool    GetMipmap ()
>> > virtual void    SetMipmap (bool)
>> > virtual void    MipmapOn ()
>> > virtual void    MipmapOff ()
>> >
>> > which seems to be what i need.
>> >
>> >
>> > Did i understand you wrong (i am sorry if this is a stupid question
>> > but i am new to vtk) ?
>> >
>> >
>> > Thank you very much in advance,
>> >
>> >
>> > Berti
>> >
>> >
>> >
>> > Von: Ken Martin <ken.martin at kitware.com>
>> > Gesendet: Samstag, 25. November 2017 14:29
>> > An: Berti Kr?ger
>> > Cc: vtkusers at vtk.org
>> > Betreff: Re: [vtkusers] VTK Anisotropic Texture Filtering /
>> > MipMaps / reducing texture aliasing
>> >
>> >
>> > Try turning on mipmaps for your texture before you render them.
>> > Support for them was added a while back. That should help some.
>> >
>> >
>> >
>> >   //@{
>> >   /**
>> >    * Turn on/off use of mipmaps when rendering.
>> >    */
>> >   vtkGetMacro(Mipmap, bool);
>> >   vtkSetMacro(Mipmap, bool);
>> >   vtkBooleanMacro(Mipmap, bool);
>> >   //@}
>> >
>> >
>> >
>> >
>> > On Sat, Nov 25, 2017 at 2:08 AM, Berti Kr?ger
>> > <berti_krueger at hotmail.com> wrote:
>> >  Hello Everyone!
>> >
>> > I'm currently making a visualization program where I've got a
>> > groundplane with a fine detailed checkerboard-like texture on it.
>> > The whole scene can be zoomed in and out. Since the resolution of
>> > the VTK-render window and the texture differ quite a bit, i get a
>> > lot of aliasing.
>> >
>> > In plain opengl i would use mipmaps and/or anisotropic filtering to
>> > get rid of it but unfortunately i haven't found anything in the
>> > vtk-texture class to archive this.
>> >
>> > For whole screen antialiasing i am already using the fxaa
>> > filter which works really nice and helps also a little bit with
>> > texture-aliasing but is of course not a replacement for
>> > resolution dependend texture-filtering.
>> >
>> > So my question is, how to reduce aliasing in VTK with fine-detailed
>> > textures?
>> >
>> >
>> > Thank you very much in advance,
>> >
>> > Berti
>> > _______________________________________________
>> > Powered by www.kitware.com
>> >
>> > Visit other Kitware open-source projects at  http://www.kitware.com/
>> > opensource/opensource.html
>> >
>> > Please keep messages on-topic and check the VTK FAQ at:
>> > http://www.vtk.org/Wiki/VTK_FAQ
>> >
>> > Search the list archives at:  http://markmail.org/search/?q=vtkusers
>> >
>> > Follow this link to subscribe/unsubscribe:
>> > http://public.kitware.com/mailman/listinfo/vtkusers
>> >
>> >
>> >
>> >
>> >  --
>> >
>> >
>> >
>> > Ken Martin PhD
>> > Distinguished Engineer
>> > Kitware Inc.
>> >
>> > 28 Corporate Drive
>> > Clifton Park NY 12065
>> >
>> >
>> >
>> > This communication, including all attachments, contains
>> > confidential and legally privileged information, and it is intended
>> > only for the use of the addressee.  Access to this email by anyone
>> > else  is unauthorized. If you are not the intended recipient, any
>> > disclosure, copying, distribution or any action taken in reliance
>> > on it is prohibited and may be unlawful. If you received this
>> > communication in error please notify us immediately and destroy
>> > the  original message.  Thank you.
>>
>>
>>
>>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers

From david.gobbi at gmail.com  Mon Nov 27 11:02:50 2017
From: david.gobbi at gmail.com (David Gobbi)
Date: Mon, 27 Nov 2017 09:02:50 -0700
Subject: [vtkusers] CT Gantry Tilt correction
In-Reply-To: <1511763162567-0.post@n5.nabble.com>
References: <1511763162567-0.post@n5.nabble.com>
Message-ID: <CANwS1=FwaGK1Og_JwAOgr70mJw+_=DTxhQHR+MtkAhkGQDXwJg@mail.gmail.com>

How were you building vtkDICOM?  Were you building it with VTK as a VTK
module (with Module_vtkDICOM=ON), or were you building vtkDICOM by itself?




On Sun, Nov 26, 2017 at 11:12 PM, Satwik <satwik.k8 at gmail.com> wrote:

> Hi users,
>
> How can i make CT gantry tilt correction using vtk.
>
> I tried using vtkDICOMCTRectifier, but i was not able to compile vtkDICOM
> module.
> ERROR: can't able to find vtkDICOMModule.h.
>
> Regards,
> Satwik k
>
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From david.gobbi at gmail.com  Mon Nov 27 11:16:17 2017
From: david.gobbi at gmail.com (David Gobbi)
Date: Mon, 27 Nov 2017 09:16:17 -0700
Subject: [vtkusers] CT Gantry Tilt correction
In-Reply-To: <CAPPKgL2qFHPH8fO3fFtuCt+Nb7u42OtHuQW1FoMUqkSfXDto=g@mail.gmail.com>
References: <1511763162567-0.post@n5.nabble.com>
 <CANwS1=FwaGK1Og_JwAOgr70mJw+_=DTxhQHR+MtkAhkGQDXwJg@mail.gmail.com>
 <CAPPKgL2qFHPH8fO3fFtuCt+Nb7u42OtHuQW1FoMUqkSfXDto=g@mail.gmail.com>
Message-ID: <CANwS1=HfHda=XbWsh2A_f0y2OHk3hEcvZ17S+SHbYphGmkhnjQ@mail.gmail.com>

Please keep your replies on-list.

What version of VTK?  I test every release to make sure that vtk-dicom
builds, but any information you can give might help me understand what's
going wrong.  And what compiler are you using?

 - David



On Mon, Nov 27, 2017 at 9:04 AM, satwik k <satwik.k8 at gmail.com> wrote:

> Ya I'm building with vtk.
>
> Regards,
> Satwik k
>
> On Nov 27, 2017 21:33, "David Gobbi" <david.gobbi at gmail.com> wrote:
>
>> How were you building vtkDICOM?  Were you building it with VTK as a VTK
>> module (with Module_vtkDICOM=ON), or were you building vtkDICOM by itself?
>>
>>
>>
>>
>> On Sun, Nov 26, 2017 at 11:12 PM, Satwik <satwik.k8 at gmail.com> wrote:
>>
>>> Hi users,
>>>
>>> How can i make CT gantry tilt correction using vtk.
>>>
>>> I tried using vtkDICOMCTRectifier, but i was not able to compile vtkDICOM
>>> module.
>>> ERROR: can't able to find vtkDICOMModule.h.
>>>
>>> Regards,
>>> Satwik k
>>>
>>
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From shawn.waldon at kitware.com  Mon Nov 27 11:17:18 2017
From: shawn.waldon at kitware.com (Shawn Waldon)
Date: Mon, 27 Nov 2017 11:17:18 -0500
Subject: [vtkusers] vtk smart pointer
In-Reply-To: <1511519732324-0.post@n5.nabble.com>
References: <1511519732324-0.post@n5.nabble.com>
Message-ID: <CALSpCT3o9v4h3z9gEpC=ZJC0-E0rwXOQYObNofquLqOcFsHm_g@mail.gmail.com>

Hi,

So I don't have time right now to write the answer this needs, but I'll
give you something to experiment with:

The base class vtkObject that contains the reference count used by
vtkSmartPointer/vtkNew has a method you can call to see the reference
count: GetReferenceCount.  It is not recommended for applications to use
this directly, but you can use it to experiment to see what happens to the
reference count of an object at different points in your program.

As far as using vtkSmartPointer/vtkNew in functions here are some general
tips:

If the object is a parameter of the function, then whoever called the
function should guarantee that the object stays valid for the lifetime of
the function call.
If you are creating the object in a function and want it to be deleted when
the function exits use vtkSmartPointer/vtkNew to manage that (don't call
Delete yourself--it is too easy to forget)
If you are returning a vtkObject from your function, you can change the
return type to vtkSmartPointer (vtkNew doesn't work here)

For more see [1].

HTH,
Shawn

[1]: https://www.vtk.org/Wiki/VTK/Tutorials/SmartPointers

On Fri, Nov 24, 2017 at 5:35 AM, ran <kor1581 at gmail.com> wrote:

> I have few doubts about vtk smart pointers usage, as in case of different
> scenarios explained below
>
> Scenario1:
>
> For example if I have two class Red and Blue with following structure
>
> Class Red
> {
> Public:
>         Red(){}
> SetVTKtem(vtkSmartPointer<vtkType>  ptrParam)
> {
>         ptr  =  ptrParam
> }
> private:
>         vtkSmartPointer<vtkType> ptr  ;
> };
>
> Class Blue
> {
> Public:
>         Blue ()
>         {
>                 ptr1   = vtkSmartPointer< vtkType >::New();
> ptr2   = vtkSmartPointer< vtkType >::New();
>         }
>         vtkSmartPointer<vtkType> GetPtr1()
> {
>         return ptr1 ;
> }
>         vtkSmartPointer<vtkType> GetPtr2()
> {
>         return ptr2 ;
> }
>   private:
>         vtkSmartPointer<vtkType> ptr1  ;
> vtkSmartPointer<vtkType> ptr2  ;
> };
>
> Then in main method,
>
> void main()
> {
> Blue *objBlue = new Blue ;
> Red * objRed =  new Red;
>
> //In a series of events in main, will set prt1, ptr2, ptr3 in objBlue to
> ptr
> in objRed
>
> //in first event, set
>
> objRed ->SetVTKtem(objBlue -> GetPtr1());
>
> // second event, set
> objRed ->SetVTKtem(objBlue -> GetPtr2());
>
>
> // in third event, again will set
> objRed ->SetVTKtem(objBlue -> GetPtr1());
>
>
> //Then if  delete objBlue, what happens to the object vtk objects pointed
> by ptr1, ptr2, ptr3.
>
> delete objBlue;
> }
> Then
> 1)      After calling,
> objRed ->SetVTKtem(objBlue -> GetPtr2());
> will reference of ptr1 of objBlue decrement to one?
> will reference of ptr of objRed decrement to one?
>
> 2)      After deleting objBlue, what happens to the object vtk objects
> pointed
> by ptr1, ptr2, ptr3?
> Will there reference be zero?
>
>
> Scenario2:
>
> I have another doubt,
>  is it safe to call vtkSmartPointer and vtkNew pointers in local variable
> to
> functions which calling recursively?
> For example
>
> Class Yellow
> {
> public:
> function()
> {
>                 vtkNew<vtkType1> ptrType1  = vtkSmartPointer<
> vtkType1>::New();
> }
> };
>
>
> Then in main method,
> void main()
> {
> Yellow objYellow = new Yellow;
> //Then in a series of events
>
> //In first event
>         objYellow-> function();
> //In second event
> objYellow-> function();
> ..
> }
>
> After second call to function(), will object pointed by ptrType1  in first
> call be function be deleted?
>
> Scenario3:
> Another doubt is if,
>
> Class Red
> {
> Public:
>         Red(){}
> SetVTKtem(vtkSmartPointer<vtkType>  ptrParam)
> {
>         ptr  =  ptrParam
> }
> private:
>         vtkSmartPointer<vtkType> ptr  ;
> };
>
> Class Blue
> {
> Public:
>         vtkSmartPointer<vtkType> GetPtr1()
> {
>         return ptr1.GetPointer() ;
> }
>   private:
>         vtkNew<vtkType> ptr1  ;
> };
>
>
> Then in main function,
>
> void main()
> {
> Blue *objBlue = new Blue ;
> Red * objRed =  new Red;
>
> //In a series of events in main, will set prt1, ptr2, ptr3 in objBlue to
> ptr
> in objRed
>
> //in first event, set
>
>
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
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From bill.lorensen at gmail.com  Mon Nov 27 11:23:54 2017
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Mon, 27 Nov 2017 11:23:54 -0500
Subject: [vtkusers] cannot find ICPRegistraitonFilter.h
In-Reply-To: <BL2PR06MB22921402335F0C0C36BCFD43A8250@BL2PR06MB2292.namprd06.prod.outlook.com>
References: <BL2PR06MB22921402335F0C0C36BCFD43A8250@BL2PR06MB2292.namprd06.prod.outlook.com>
Message-ID: <CADZJ4hOySiUzP6-KK=OMjfeUwKKpC=MUPN45y7+GT2NkEd_PaQ@mail.gmail.com>

See:

./Common/DataModel/vtkIterativeClosestPointTransform.h
and
https://lorensen.github.io/VTKExamples/site/Cxx/Filtering/IterativeClosestPointsTransform/


On Mon, Nov 27, 2017 at 7:24 AM, Zou Jing <zjinger at hotmail.com> wrote:
> Dear all,
>
> I am a novice of VTK. I want to register 3D image using ICP algorithm.
>
> But I cannot find ICPRegistraitonFilter.h in vtk 8.0.1
>
> I am looking forward to your answer.
>
> Thank you very much.
>
>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



-- 
Unpaid intern in BillsBasement at noware dot com

From david.gobbi at gmail.com  Mon Nov 27 11:44:54 2017
From: david.gobbi at gmail.com (David Gobbi)
Date: Mon, 27 Nov 2017 09:44:54 -0700
Subject: [vtkusers] CT Gantry Tilt correction
In-Reply-To: <CAPPKgL23ZkBEBmzyfsC-uPe0nUYcX+QDQQk-zbEhSMWmO8sWuQ@mail.gmail.com>
References: <1511763162567-0.post@n5.nabble.com>
 <CANwS1=FwaGK1Og_JwAOgr70mJw+_=DTxhQHR+MtkAhkGQDXwJg@mail.gmail.com>
 <CAPPKgL2qFHPH8fO3fFtuCt+Nb7u42OtHuQW1FoMUqkSfXDto=g@mail.gmail.com>
 <CANwS1=HfHda=XbWsh2A_f0y2OHk3hEcvZ17S+SHbYphGmkhnjQ@mail.gmail.com>
 <CAPPKgL23ZkBEBmzyfsC-uPe0nUYcX+QDQQk-zbEhSMWmO8sWuQ@mail.gmail.com>
Message-ID: <CANwS1=F3FdhTvhfnbVKxeVO4xk=+OJHnHgoddZP6XS0hJ=FeUA@mail.gmail.com>

Please keep your replies on-list (CC to vtkusers at vtk.org).

It should build either way, but if you are on Windows, cloning is better
because git will give you the correct line-endings for the source files
(i.e. <CR><NL> on Windows instead of just <NL>).

Just to be sure, did you find the build instructions?  They're on the
following page:
http://dgobbi.github.io/vtk-dicom/doc/api/installation.html

 - David


On Mon, Nov 27, 2017 at 9:28 AM, satwik k <satwik.k8 at gmail.com> wrote:

> Currently I'm trying to build vtkdicom using vtk 7.1..
> Trying to build using cmake. I'm getting vtkDICOMModule.h missing.
>
> I'm using Windows 7 and I downloaded vtkdicom as zip file from github.
>
> Should I clone it or by downloading zip file also it builds..?
>
> On Nov 27, 2017 21:46, "David Gobbi" <david.gobbi at gmail.com> wrote:
>
>> Please keep your replies on-list.
>>
>> What version of VTK?  I test every release to make sure that vtk-dicom
>> builds, but any information you can give might help me understand what's
>> going wrong.  And what compiler are you using?
>>
>>  - David
>>
>>
>>
>> On Mon, Nov 27, 2017 at 9:04 AM, satwik k <satwik.k8 at gmail.com> wrote:
>>
>>> Ya I'm building with vtk.
>>>
>>> Regards,
>>> Satwik k
>>>
>>> On Nov 27, 2017 21:33, "David Gobbi" <david.gobbi at gmail.com> wrote:
>>>
>>>> How were you building vtkDICOM?  Were you building it with VTK as a VTK
>>>> module (with Module_vtkDICOM=ON), or were you building vtkDICOM by itself?
>>>>
>>>>
>>>>
>>>>
>>>> On Sun, Nov 26, 2017 at 11:12 PM, Satwik <satwik.k8 at gmail.com> wrote:
>>>>
>>>>> Hi users,
>>>>>
>>>>> How can i make CT gantry tilt correction using vtk.
>>>>>
>>>>> I tried using vtkDICOMCTRectifier, but i was not able to compile
>>>>> vtkDICOM
>>>>> module.
>>>>> ERROR: can't able to find vtkDICOMModule.h.
>>>>>
>>>>> Regards,
>>>>> Satwik k
>>>>>
>>>>
>>
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From dave.demarle at kitware.com  Mon Nov 27 18:18:26 2017
From: dave.demarle at kitware.com (David E DeMarle)
Date: Mon, 27 Nov 2017 18:18:26 -0500
Subject: [vtkusers] Shadow support on volume rendering
In-Reply-To: <1510135054887-0.post@n5.nabble.com>
References: <CANjZAi-w78-MAaUK7mAEHSnY_7vrN3w3XKgeDPRmas2_2ZMEWA@mail.gmail.com>
 <CANjZAi-q+Vv+2J5=OV==B8uecXHYFhusag253j23cF5vf+B4Mg@mail.gmail.com>
 <7002df66-ddbd-071b-79bc-272a98a799ce@insigniamedical.co.uk>
 <CANjZAi8ijx1Nuwb3eTRX4wOWHtQGYkfETLF8FZ3vR6_G8NfXJg@mail.gmail.com>
 <1509119924385-0.post@n5.nabble.com>
 <CANjZAi9XV=fZ=2G_xoxBcT0ycq_8rTx5+j0z6PaQ+WuhZCUBnw@mail.gmail.com>
 <CANjZAi9HsmhfyaF26TTKMf4nh+ypj52zOQA5MtyUGMKwsCHRFg@mail.gmail.com>
 <1509465934854-0.post@n5.nabble.com> <1509469501231-0.post@n5.nabble.com>
 <CANjZAi_stmOTvcx5hQ9L-ResBZUZ9n+ZNZZa3Lw+tws9mEZB_g@mail.gmail.com>
 <1510135054887-0.post@n5.nabble.com>
Message-ID: <CANjZAi83PkkCR61jrEbR+8GMuYmOxbnjG+nPT_k_VBBZdz-LRA@mail.gmail.com>

Finally had a second to look into it.

There seem to be issues with short word type (and likely endian) in
the ospray volume renderer interface. Converting the array to float
results in a close match between ospray and gl volume rendered data.

Sorry for the hassle and delay Ian.

I'll file a bug report and we'll try and get it addressed.

Attached find a sample rendered with lighting and shadows enabled.

David E DeMarle
Kitware, Inc.
Principal Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909


On Wed, Nov 8, 2017 at 4:57 AM, ianl <ilindsay at insigniamedical.co.uk> wrote:
> Hi David,
>
> Basically any DICOM CT set will do, but a good example is the Visible Human
> Female Ankle, available here:
> https://mri.radiology.uiowa.edu/VHDicom/VHFCT1mm/VHF-Ankle.tar.gz
>
> This renders fine (see image) with the GPU renderer. I get a totally black
> image when I add in the OSPRay render pass. I have verified this by writing
> a loop to check the value of all output pixels, all end up as zeros.
>
> <http://vtk.1045678.n5.nabble.com/file/t147622/render.png>
>
> I have had a play around with the TestOSPRayVolumeRenderer.cxx test. I
> removed the data surface filter so the test only renders the volumetric
> image, this seems to render fine with OSPRay, so it seems that my set-up is
> ok.
>
> As another test, I added a marching cubes filter to extract an iso surface
> to my pipeline, along with a vtkPolyDataMapper to render it. In this
> configuration, I see a surface rendered by OSPRay, so it seems that the
> issue is something specific to my pipeline and volumetric rendering. I'll
> keep digging.
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
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From bill.lorensen at gmail.com  Mon Nov 27 18:25:18 2017
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Mon, 27 Nov 2017 18:25:18 -0500
Subject: [vtkusers] Shadow support on volume rendering
In-Reply-To: <CANjZAi83PkkCR61jrEbR+8GMuYmOxbnjG+nPT_k_VBBZdz-LRA@mail.gmail.com>
References: <CANjZAi-w78-MAaUK7mAEHSnY_7vrN3w3XKgeDPRmas2_2ZMEWA@mail.gmail.com>
 <CANjZAi-q+Vv+2J5=OV==B8uecXHYFhusag253j23cF5vf+B4Mg@mail.gmail.com>
 <7002df66-ddbd-071b-79bc-272a98a799ce@insigniamedical.co.uk>
 <CANjZAi8ijx1Nuwb3eTRX4wOWHtQGYkfETLF8FZ3vR6_G8NfXJg@mail.gmail.com>
 <1509119924385-0.post@n5.nabble.com>
 <CANjZAi9XV=fZ=2G_xoxBcT0ycq_8rTx5+j0z6PaQ+WuhZCUBnw@mail.gmail.com>
 <CANjZAi9HsmhfyaF26TTKMf4nh+ypj52zOQA5MtyUGMKwsCHRFg@mail.gmail.com>
 <1509465934854-0.post@n5.nabble.com> <1509469501231-0.post@n5.nabble.com>
 <CANjZAi_stmOTvcx5hQ9L-ResBZUZ9n+ZNZZa3Lw+tws9mEZB_g@mail.gmail.com>
 <1510135054887-0.post@n5.nabble.com>
 <CANjZAi83PkkCR61jrEbR+8GMuYmOxbnjG+nPT_k_VBBZdz-LRA@mail.gmail.com>
Message-ID: <CADZJ4hMoje4qkdHpZ0qqV4fM5O3f20q5GSs=SJNPbt+-YX4rgw@mail.gmail.com>

This would be a great example.  Would it be hard to replicate in C++

On Nov 27, 2017 6:19 PM, "David E DeMarle" <dave.demarle at kitware.com> wrote:

> Finally had a second to look into it.
>
> There seem to be issues with short word type (and likely endian) in
> the ospray volume renderer interface. Converting the array to float
> results in a close match between ospray and gl volume rendered data.
>
> Sorry for the hassle and delay Ian.
>
> I'll file a bug report and we'll try and get it addressed.
>
> Attached find a sample rendered with lighting and shadows enabled.
>
> David E DeMarle
> Kitware, Inc.
> Principal Engineer
> 21 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-881-4909
>
>
> On Wed, Nov 8, 2017 at 4:57 AM, ianl <ilindsay at insigniamedical.co.uk>
> wrote:
> > Hi David,
> >
> > Basically any DICOM CT set will do, but a good example is the Visible
> Human
> > Female Ankle, available here:
> > https://mri.radiology.uiowa.edu/VHDicom/VHFCT1mm/VHF-Ankle.tar.gz
> >
> > This renders fine (see image) with the GPU renderer. I get a totally
> black
> > image when I add in the OSPRay render pass. I have verified this by
> writing
> > a loop to check the value of all output pixels, all end up as zeros.
> >
> > <http://vtk.1045678.n5.nabble.com/file/t147622/render.png>
> >
> > I have had a play around with the TestOSPRayVolumeRenderer.cxx test. I
> > removed the data surface filter so the test only renders the volumetric
> > image, this seems to render fine with OSPRay, so it seems that my set-up
> is
> > ok.
> >
> > As another test, I added a marching cubes filter to extract an iso
> surface
> > to my pipeline, along with a vtkPolyDataMapper to render it. In this
> > configuration, I see a surface rendered by OSPRay, so it seems that the
> > issue is something specific to my pipeline and volumetric rendering. I'll
> > keep digging.
> >
> >
> >
> > --
> > Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> > _______________________________________________
> > Powered by www.kitware.com
> >
> > Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
> >
> > Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
> >
> > Search the list archives at: http://markmail.org/search/?q=vtkusers
> >
> > Follow this link to subscribe/unsubscribe:
> > http://public.kitware.com/mailman/listinfo/vtkusers
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>
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From dave.demarle at kitware.com  Mon Nov 27 18:32:21 2017
From: dave.demarle at kitware.com (David E DeMarle)
Date: Mon, 27 Nov 2017 18:32:21 -0500
Subject: [vtkusers] Shadow support on volume rendering
In-Reply-To: <CADZJ4hMoje4qkdHpZ0qqV4fM5O3f20q5GSs=SJNPbt+-YX4rgw@mail.gmail.com>
References: <CANjZAi-w78-MAaUK7mAEHSnY_7vrN3w3XKgeDPRmas2_2ZMEWA@mail.gmail.com>
 <CANjZAi-q+Vv+2J5=OV==B8uecXHYFhusag253j23cF5vf+B4Mg@mail.gmail.com>
 <7002df66-ddbd-071b-79bc-272a98a799ce@insigniamedical.co.uk>
 <CANjZAi8ijx1Nuwb3eTRX4wOWHtQGYkfETLF8FZ3vR6_G8NfXJg@mail.gmail.com>
 <1509119924385-0.post@n5.nabble.com>
 <CANjZAi9XV=fZ=2G_xoxBcT0ycq_8rTx5+j0z6PaQ+WuhZCUBnw@mail.gmail.com>
 <CANjZAi9HsmhfyaF26TTKMf4nh+ypj52zOQA5MtyUGMKwsCHRFg@mail.gmail.com>
 <1509465934854-0.post@n5.nabble.com> <1509469501231-0.post@n5.nabble.com>
 <CANjZAi_stmOTvcx5hQ9L-ResBZUZ9n+ZNZZa3Lw+tws9mEZB_g@mail.gmail.com>
 <1510135054887-0.post@n5.nabble.com>
 <CANjZAi83PkkCR61jrEbR+8GMuYmOxbnjG+nPT_k_VBBZdz-LRA@mail.gmail.com>
 <CADZJ4hMoje4qkdHpZ0qqV4fM5O3f20q5GSs=SJNPbt+-YX4rgw@mail.gmail.com>
Message-ID: <CANjZAi9+JxhOt_pr6seXLWR+_o5k3WhKApLCFLKbwButgaj1Hw@mail.gmail.com>

Shouldn't be hard

dicom reader -> vtkImageCast (for the time being) -> volume render

enable volumetric lighting on the volume mapper

renderer->UseShadowsOn

insert ospraypass on renderer




David E DeMarle
Kitware, Inc.
Principal Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909


On Mon, Nov 27, 2017 at 6:25 PM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
> This would be a great example.  Would it be hard to replicate in C++
>
> On Nov 27, 2017 6:19 PM, "David E DeMarle" <dave.demarle at kitware.com> wrote:
>>
>> Finally had a second to look into it.
>>
>> There seem to be issues with short word type (and likely endian) in
>> the ospray volume renderer interface. Converting the array to float
>> results in a close match between ospray and gl volume rendered data.
>>
>> Sorry for the hassle and delay Ian.
>>
>> I'll file a bug report and we'll try and get it addressed.
>>
>> Attached find a sample rendered with lighting and shadows enabled.
>>
>> David E DeMarle
>> Kitware, Inc.
>> Principal Engineer
>> 21 Corporate Drive
>> Clifton Park, NY 12065-8662
>> Phone: 518-881-4909
>>
>>
>> On Wed, Nov 8, 2017 at 4:57 AM, ianl <ilindsay at insigniamedical.co.uk>
>> wrote:
>> > Hi David,
>> >
>> > Basically any DICOM CT set will do, but a good example is the Visible
>> > Human
>> > Female Ankle, available here:
>> > https://mri.radiology.uiowa.edu/VHDicom/VHFCT1mm/VHF-Ankle.tar.gz
>> >
>> > This renders fine (see image) with the GPU renderer. I get a totally
>> > black
>> > image when I add in the OSPRay render pass. I have verified this by
>> > writing
>> > a loop to check the value of all output pixels, all end up as zeros.
>> >
>> > <http://vtk.1045678.n5.nabble.com/file/t147622/render.png>
>> >
>> > I have had a play around with the TestOSPRayVolumeRenderer.cxx test. I
>> > removed the data surface filter so the test only renders the volumetric
>> > image, this seems to render fine with OSPRay, so it seems that my set-up
>> > is
>> > ok.
>> >
>> > As another test, I added a marching cubes filter to extract an iso
>> > surface
>> > to my pipeline, along with a vtkPolyDataMapper to render it. In this
>> > configuration, I see a surface rendered by OSPRay, so it seems that the
>> > issue is something specific to my pipeline and volumetric rendering.
>> > I'll
>> > keep digging.
>> >
>> >
>> >
>> > --
>> > Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
>> > _______________________________________________
>> > Powered by www.kitware.com
>> >
>> > Visit other Kitware open-source projects at
>> > http://www.kitware.com/opensource/opensource.html
>> >
>> > Please keep messages on-topic and check the VTK FAQ at:
>> > http://www.vtk.org/Wiki/VTK_FAQ
>> >
>> > Search the list archives at: http://markmail.org/search/?q=vtkusers
>> >
>> > Follow this link to subscribe/unsubscribe:
>> > http://public.kitware.com/mailman/listinfo/vtkusers
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/vtkusers
>>
>

From satwik.k8 at gmail.com  Mon Nov 27 23:44:41 2017
From: satwik.k8 at gmail.com (satwik k)
Date: Tue, 28 Nov 2017 10:14:41 +0530
Subject: [vtkusers] CT Gantry Tilt correction
In-Reply-To: <CANwS1=F3FdhTvhfnbVKxeVO4xk=+OJHnHgoddZP6XS0hJ=FeUA@mail.gmail.com>
References: <1511763162567-0.post@n5.nabble.com>
 <CANwS1=FwaGK1Og_JwAOgr70mJw+_=DTxhQHR+MtkAhkGQDXwJg@mail.gmail.com>
 <CAPPKgL2qFHPH8fO3fFtuCt+Nb7u42OtHuQW1FoMUqkSfXDto=g@mail.gmail.com>
 <CANwS1=HfHda=XbWsh2A_f0y2OHk3hEcvZ17S+SHbYphGmkhnjQ@mail.gmail.com>
 <CAPPKgL23ZkBEBmzyfsC-uPe0nUYcX+QDQQk-zbEhSMWmO8sWuQ@mail.gmail.com>
 <CANwS1=F3FdhTvhfnbVKxeVO4xk=+OJHnHgoddZP6XS0hJ=FeUA@mail.gmail.com>
Message-ID: <CAPPKgL2+CkfR_aFf6uY=QZb7tipYma5uwTE+qwaFfVWkzRjSTA@mail.gmail.com>

Hi David, thanx for the reply... VTKDICOM module got compiled after cloning
from git.

Regards,
Satwik k

On Mon, Nov 27, 2017 at 10:14 PM, David Gobbi <david.gobbi at gmail.com> wrote:

> Please keep your replies on-list (CC to vtkusers at vtk.org).
>
> It should build either way, but if you are on Windows, cloning is better
> because git will give you the correct line-endings for the source files
> (i.e. <CR><NL> on Windows instead of just <NL>).
>
> Just to be sure, did you find the build instructions?  They're on the
> following page:
> http://dgobbi.github.io/vtk-dicom/doc/api/installation.html
>
>  - David
>
>
> On Mon, Nov 27, 2017 at 9:28 AM, satwik k <satwik.k8 at gmail.com> wrote:
>
>> Currently I'm trying to build vtkdicom using vtk 7.1..
>> Trying to build using cmake. I'm getting vtkDICOMModule.h missing.
>>
>> I'm using Windows 7 and I downloaded vtkdicom as zip file from github.
>>
>> Should I clone it or by downloading zip file also it builds..?
>>
>> On Nov 27, 2017 21:46, "David Gobbi" <david.gobbi at gmail.com> wrote:
>>
>>> Please keep your replies on-list.
>>>
>>> What version of VTK?  I test every release to make sure that vtk-dicom
>>> builds, but any information you can give might help me understand what's
>>> going wrong.  And what compiler are you using?
>>>
>>>  - David
>>>
>>>
>>>
>>> On Mon, Nov 27, 2017 at 9:04 AM, satwik k <satwik.k8 at gmail.com> wrote:
>>>
>>>> Ya I'm building with vtk.
>>>>
>>>> Regards,
>>>> Satwik k
>>>>
>>>> On Nov 27, 2017 21:33, "David Gobbi" <david.gobbi at gmail.com> wrote:
>>>>
>>>>> How were you building vtkDICOM?  Were you building it with VTK as a
>>>>> VTK module (with Module_vtkDICOM=ON), or were you building vtkDICOM by
>>>>> itself?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Sun, Nov 26, 2017 at 11:12 PM, Satwik <satwik.k8 at gmail.com> wrote:
>>>>>
>>>>>> Hi users,
>>>>>>
>>>>>> How can i make CT gantry tilt correction using vtk.
>>>>>>
>>>>>> I tried using vtkDICOMCTRectifier, but i was not able to compile
>>>>>> vtkDICOM
>>>>>> module.
>>>>>> ERROR: can't able to find vtkDICOMModule.h.
>>>>>>
>>>>>> Regards,
>>>>>> Satwik k
>>>>>>
>>>>>
>>>
>
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From stn.gupta.pankaj at gmail.com  Tue Nov 28 01:21:46 2017
From: stn.gupta.pankaj at gmail.com (Pankaj Gupta)
Date: Tue, 28 Nov 2017 13:21:46 +0700
Subject: [vtkusers] know the pixels on the line
Message-ID: <CANrthkX175a7SHEw7nHxuamhgStMiToofk8SJKK3soDgKq2BwQ@mail.gmail.com>

Hi,

 I am new to vtk. I am using Activiz. I created multiple lines using
vtkLine and display them using vtkActor. Now i want to draw line on 2D
points calculated from the 3D Line Points. I want to know all the pixels of
3D lines from where my lines is passed. Below is my code.

vtkPoints points = vtkPoints.New();
for (int i = 0; i < point.Count; i++)
points.InsertNextPoint(x, y, z);

vtkCellArray lines = vtkCellArray.New();
for (int i = 0; i < point.Count-1; i++)
{
  vtkLine line = vtkLine.New();
  line.GetPointIds().SetId(0, i);
  line.GetPointIds().SetId(1, i + 1);
  lines.InsertNextCell(line);
}

vtkPolyData linesPolyData = vtkPolyData.New();
linesPolyData.SetPoints(points);
linesPolyData.SetLines(lines);
linesPolyData.Update();

vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
mapper.SetInput(linesPolyData);
mapper.Update();

vtkActor actor = vtkActor.New();
actor.SetMapper(mapper);
actor.GetProperty().SetLineWidth(10);
actor.GetProperty().SetColor(255, 255, 0);
renderer.AddActor(actor);


Now i want to know the pixels on the lines. Please help me. Thanks in
advance. :) :)


Thanks,

Pankaj
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From ilindsay at insigniamedical.co.uk  Tue Nov 28 04:04:07 2017
From: ilindsay at insigniamedical.co.uk (ianl)
Date: Tue, 28 Nov 2017 02:04:07 -0700 (MST)
Subject: [vtkusers] Shadow support on volume rendering
In-Reply-To: <CANjZAi9+JxhOt_pr6seXLWR+_o5k3WhKApLCFLKbwButgaj1Hw@mail.gmail.com>
References: <1509119924385-0.post@n5.nabble.com>
 <CANjZAi9XV=fZ=2G_xoxBcT0ycq_8rTx5+j0z6PaQ+WuhZCUBnw@mail.gmail.com>
 <CANjZAi9HsmhfyaF26TTKMf4nh+ypj52zOQA5MtyUGMKwsCHRFg@mail.gmail.com>
 <1509465934854-0.post@n5.nabble.com> <1509469501231-0.post@n5.nabble.com>
 <CANjZAi_stmOTvcx5hQ9L-ResBZUZ9n+ZNZZa3Lw+tws9mEZB_g@mail.gmail.com>
 <1510135054887-0.post@n5.nabble.com>
 <CANjZAi83PkkCR61jrEbR+8GMuYmOxbnjG+nPT_k_VBBZdz-LRA@mail.gmail.com>
 <CADZJ4hMoje4qkdHpZ0qqV4fM5O3f20q5GSs=SJNPbt+-YX4rgw@mail.gmail.com>
 <CANjZAi9+JxhOt_pr6seXLWR+_o5k3WhKApLCFLKbwButgaj1Hw@mail.gmail.com>
Message-ID: <1511859847474-0.post@n5.nabble.com>

Hi David, thanks for looking into this. I eventually got to the point where I
could see a volume, but with no opacity (as I think someone else mentioned
in a separate thread), then ran out of time to look any further.

I think some of our issues were due to a custom SmartVolumeMapper we had
built to address some other issues we were having (GPU memory size info,
auto volume down sampling etc). This was presumably interfering with the
insertion of the ray cast pass. Reverting to the VTK one seemed to help, so
this is something we need to look into.

Glad to hear there is an explanation. I look forward to the fix, the results
look good in the image you attached.



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From koopman.mk at gmail.com  Tue Nov 28 04:38:09 2017
From: koopman.mk at gmail.com (Martijn Koopman)
Date: Tue, 28 Nov 2017 10:38:09 +0100
Subject: [vtkusers] know the pixels on the line
In-Reply-To: <CANrthkX175a7SHEw7nHxuamhgStMiToofk8SJKK3soDgKq2BwQ@mail.gmail.com>
References: <CANrthkX175a7SHEw7nHxuamhgStMiToofk8SJKK3soDgKq2BwQ@mail.gmail.com>
Message-ID: <CAKX6OK4pYOEs2hVZ5JQBy-tFh3j+XgJEVNy5ynSHOPkuwY6-iQ@mail.gmail.com>

Hi Pankaj,

You could use vtkTransformCoordinateSystems to transform the world
coordinates of your vtkPolyData to display coordinates.
Also the convenience method vtkInteractorObserver::ComputeWorldToDisplay
would be an option.

>From these two display points you can derive the vector of the 2D line and
then traverse the intermediate points.

However, this is method only gives you a description of the 2D line. It
does not tell exactly which which pixels on the screen are rendered from
that line.
The thickness of the line is neglected for example.

Regards,
Martijn

2017-11-28 7:21 GMT+01:00 Pankaj Gupta <stn.gupta.pankaj at gmail.com>:

> Hi,
>
>  I am new to vtk. I am using Activiz. I created multiple lines using
> vtkLine and display them using vtkActor. Now i want to draw line on 2D
> points calculated from the 3D Line Points. I want to know all the pixels of
> 3D lines from where my lines is passed. Below is my code.
>
> vtkPoints points = vtkPoints.New();
> for (int i = 0; i < point.Count; i++)
> points.InsertNextPoint(x, y, z);
>
> vtkCellArray lines = vtkCellArray.New();
> for (int i = 0; i < point.Count-1; i++)
> {
>   vtkLine line = vtkLine.New();
>   line.GetPointIds().SetId(0, i);
>   line.GetPointIds().SetId(1, i + 1);
>   lines.InsertNextCell(line);
> }
>
> vtkPolyData linesPolyData = vtkPolyData.New();
> linesPolyData.SetPoints(points);
> linesPolyData.SetLines(lines);
> linesPolyData.Update();
>
> vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
> mapper.SetInput(linesPolyData);
> mapper.Update();
>
> vtkActor actor = vtkActor.New();
> actor.SetMapper(mapper);
> actor.GetProperty().SetLineWidth(10);
> actor.GetProperty().SetColor(255, 255, 0);
> renderer.AddActor(actor);
>
>
> Now i want to know the pixels on the lines. Please help me. Thanks in
> advance. :) :)
>
>
> Thanks,
>
> Pankaj
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensou
> rce/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>
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From amine.aboufirass at gmail.com  Tue Nov 28 07:12:42 2017
From: amine.aboufirass at gmail.com (Amine Aboufirass)
Date: Tue, 28 Nov 2017 13:12:42 +0100
Subject: [vtkusers] vtkSelectionNodes
Message-ID: <CAMwawgPJcEv5oH01uSgDbZfOiGRP3RoewKd7TUBeEt8t0mwM4w@mail.gmail.com>

Dear all,

I developed a python script which extracts attributes from points in a
vtkUnstructuredGrid.

The script uses  SelectionNodes to extract the point using the LOCATIONS
attribute. I believe that this should select the point closest to the
desired world coordinates. The meat of my code is copied below. It is in
python.

reader = vtk.vtkUnstructuredGridReader()
reader.SetFileName(FileName)
SelectionList = vtk.vtkDoubleArray()
SelectionList.SetNumberOfComponents(3)
for Location in Locations:
SelectionList.InsertNextTuple(Location)
SelectionNode = vtk.vtkSelectionNode()
SelectionNode.SetFieldType(vtk.vtkSelectionNode.POINT)
SelectionNode.SetContentType(vtk.vtkSelectionNode.LOCATIONS)
SelectionNode.SetSelectionList(SelectionList)
Selection = vtk.vtkSelection()
Selection.AddNode(SelectionNode)
ExtractSelection = vtk.vtkExtractSelection()
ExtractSelection.SetInputConnection(0, reader.GetOutputPort())
ExtractSelection.SetInput(1,Selection)
ExtractSelection.Update()
Selected = vtk.vtkUnstructuredGrid()
Selected.ShallowCopy(ExtractSelection.GetOutput())
PointData = Selected.GetPointData()

While this does indeed select points based on the supplied coordinates, the
points are not necessarily the closest ones to the supplied coordinate. In
this case I wanted a set of points closest to the left extreme of my
unstructured grid, i.e (X = 0). As you can see from the attachment it is
selecting points quite far away from it.

Is there a better way to simply select the points I need?

Thanks and look forward to hearing from you
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From woshizyc at gmail.com  Tue Nov 28 08:20:13 2017
From: woshizyc at gmail.com (woshizyc at gmail.com)
Date: Tue, 28 Nov 2017 21:20:13 +0800
Subject: [vtkusers] Visualize cell normal vector of polydata
Message-ID: <2017112821184103591617@gmail.com>

Hi, experts,

I want to visualize the normal vectors of a polydata to be centered in the center of each triangle.
I tried to do this for a sphere generated from vtkSphereSource.

I used the following python codes to calculate the normal vectors of the sphere:
sphere = vtk.vtkSphereSource()
sphere.SetCenter(0, 0, 0)
sphere.SetRadius(5.0)
arrow = vtk.vtkArrowSource()
arrow.Update()

normals = vtk.vtkPolyDataNormals()
normals.SetInputConnection(sphere.GetOutputPort())

normals.ComputePointNormalsOff()
normals.ComputeCellNormalsOn()
normals.SplittingOff()
normals.FlipNormalsOff()
normals.ConsistencyOn()
normals.AutoOrientNormalsOn()
normals.Update()

However, it seemed that I did not get the correct normal vectors of each triangle, as you can see in the attached figure. 
In addition, I also do not know how to move the vectors to the center of each triangle.

Could any experts give me some clue for solving this problem.

Are there any example for doing this?

Thanks in advance.

Best,

Yuanchao




woshizyc at gmail.com
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From zjinger at hotmail.com  Tue Nov 28 09:05:18 2017
From: zjinger at hotmail.com (Zou Jing)
Date: Tue, 28 Nov 2017 14:05:18 +0000
Subject: [vtkusers] MarchingCubes pointer to incomplete class type is not
	allowed
Message-ID: <BL2PR06MB2292BB0FDAC0F83EA91C8000A83A0@BL2PR06MB2292.namprd06.prod.outlook.com>

Dear all,

I want to convert 3D DICOM or NIFTI image to points cloud (.stl) using vtkMarchingCubes.

But there is always the error that 'pointer to incomplete class type is not allowed'  when I deepcopy volume from reader(show in boldface in following code).

I am using  vtk 8.0.1. And I am a novice.

I am looking forward to your answer.

Thank you very much.



There is the code :
vtkSmartPointer<vtkNIFTIImageReader> reader1 = vtkSmartPointer<vtkNIFTIImageReader>::New();
       reader1->SetFileName("C:/Users/studentx/Desktop/lung/test/case1-00.nii");

       reader1->Update();
vtkSmartPointer<vtkImageData> volume =

              vtkSmartPointer<vtkImageData>::New();
vtkSmartPointer<vtkMarchingCubes> surface =

              vtkSmartPointer<vtkMarchingCubes>::New();

volume->DeepCopy(reader1->GetOutput());
#if VTK_MAJOR_VERSION <= 5
       surface->SetInput(volume);
#else
       surface->SetInputData(volume);
#endif
       surface->ComputeNormalsOn();
       surface->SetValue(0,0.5);

       vtkSmartPointer<vtkPolyData> moving = vtkSmartPointer <vtkPolyData>::New();
       moving->surface->GetOutput();

       //write polydata
       vtkSmartPointer<vtkPolyDataWriter> writer0 = vtkSmartPointer<vtkPolyDataWriter>::New();
       writer0->SetFileName("C:/Users/studentx/Desktop/lung/test/case1orgin.stl");
       writer0->SetInputData(moving);

       writer0->Write();







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From jochen.jankowai at gmail.com  Tue Nov 28 09:23:01 2017
From: jochen.jankowai at gmail.com (Jochen Jankowai)
Date: Tue, 28 Nov 2017 15:23:01 +0100
Subject: [vtkusers] Regularly sample 3D unstructured tensor grid
In-Reply-To: <CAHDyfPBaVd9Uf3W7pm2TNA8hGKsy7P+4rMaov-q=hYvPpZW7PA@mail.gmail.com>
References: <1511527683507-0.post@n5.nabble.com>
 <CAHDyfPBaVd9Uf3W7pm2TNA8hGKsy7P+4rMaov-q=hYvPpZW7PA@mail.gmail.com>
Message-ID: <021a01d36854$664f2200$32ed6600$@gmail.com>

Hi,
Thank you for your reply! I have adjusted my code according to your suggestions which had the effect that I am not getting a nullptr any longer.
The resulting structured grid has 0 values at all positions though.
Am I forgetting to specify that/how I want to interpolate the tensors or something like that?

See code below:

    auto reader = vtkUnstructuredGridReader::New();

    reader->SetFileName(file_.get().c_str());

    reader->SetReadAllTensors(1);

    reader->Update();

    auto unstructuredGrid = reader->GetOutput();

    auto bounds = unstructuredGrid->GetBounds();

    // Create a grid of points to interpolate over
    auto gridSize = ivec3(32);
    const auto gridBounds = dvec3(31);
    vtkSmartPointer<vtkPoints> gridPoints = vtkSmartPointer<vtkPoints>::New();

    const auto xRange = std::abs(bounds[0] - bounds[1]);
    const auto yRange = std::abs(bounds[2] - bounds[3]);
    const auto zRange = std::abs(bounds[4] - bounds[5]);

    const auto stepSize = dvec3(xRange / gridBounds.x, yRange / gridBounds.y, zRange / gridBounds.z);

    for (int x = 0; x < gridSize.x; x++) {
        for (int y = 0; y < gridSize.y; y++) {
            for (int z = 0; z < gridSize.z; z++) {
                const auto xCoord = bounds[0] + static_cast<double>(x) * stepSize.x;
                const auto yCoord = bounds[2] + static_cast<double>(y) * stepSize.y;
                const auto zCoord = bounds[4] + static_cast<double>(z) * stepSize.z;
                gridPoints->InsertNextPoint(xCoord, yCoord, zCoord);
            }
        }
    }

    // Create a dataset from the grid points
     vtkSmartPointer<vtkStructuredGrid> pointSet =
        vtkSmartPointer<vtkStructuredGrid>::New();
     pointSet->SetDimensions(glm::value_ptr(gridSize));
     pointSet->SetPoints(gridPoints);
    
     vtkSmartPointer<vtkProbeFilter> probeFilter =
        vtkSmartPointer<vtkProbeFilter>::New();
     probeFilter->SetSourceData(unstructuredGrid);

     probeFilter->SetInputData(pointSet);

     probeFilter->Update();

     auto structuredGrid = probeFilter->GetStructuredGridOutput();

     auto pointData = structuredGrid->GetPointData();
     auto tensors = pointData->GetArray("strain_0.0");



-----Original Message-----
From: kenichiro yoshimi [mailto:rccm.kyoshimi at gmail.com] 
Sent: den 25 november 2017 04:50
To: PetiteViking <jochen.jankowai at gmail.com>
Cc: vtkusers at vtk.org
Subject: Re: [vtkusers] Regularly sample 3D unstructured tensor grid

Hi,

The standard way of retrieving PointData is not  auto tensors = pointData->GetArray(); but  auto tensors = pointData->GetArray(0);  auto tensors = pointData->GetArray("array-name");
 auto tensors = pointData->GetTensors("array-name");

vtkPointData inherits from vtkDataSetAttributes and
pointData->GetArray() is trying to access the FieldData which
describes global properties of pointData, but it is null.

Thanks

2017-11-24 21:48 GMT+09:00 PetiteViking <jochen.jankowai at gmail.com>:
> Hello everyone! I've tried to find an answer to my problem in the 
> forum for quite some time now but I cannot seem to find a solution. I 
> have an unstructured hexahedral grid that stores one tensor per cell. 
> What I need in my application though is a regulargrid so I would like 
> to regularly sample the field. So far, this is what I am trying to 
> (see code below). In one of the posts here I have read that 
> vtkProbeFilter will produce output that corresponds to the input so I 
> amusing a structured grid as input for which I have computed points. 
> And while I manage to retreive a structured grid from the probeFilter, 
> the variable tensors ends up being a nullptr. auto reader = 
> vtkUnstructuredGridReader::New(); 
> reader->SetFileName(file_.get().c_str());
> reader->Update(); auto unstructuredGrid = reader->GetOutput(); // 
> reader->Create a
> grid of points to interpolate over auto gridSize = glm::ivec3(32, 32, 
> 32); vtkSmartPointer<vtkPoints> gridPoints = ?
> vtkSmartPointer<vtkPoints>::New();
> for (int x = 0; x < gridSize.x; x++) { ?for (int y = 0; y < 
> gridSize.y; y++) { ??for (int z = 0; z < gridSize.z; z++) { ???
> gridPoints->InsertNextPoint(x, y, z); ??} ?} } // Create a dataset 
> from the grid points vtkSmartPointer<vtkStructuredGrid> pointSet =
> ?vtkSmartPointer<vtkStructuredGrid>::New();
> pointSet->SetDimensions(glm::value_ptr(gridSize));
> pointSet->SetPoints(gridPoints); vtkSmartPointer<vtkProbeFilter> 
> pointSet->probeFilter
> = ?vtkSmartPointer<vtkProbeFilter>::New();
> probeFilter->SetSourceData(unstructuredGrid);
> probeFilter->SetInputData(pointSet); probeFilter->Update(); auto
> structuredGrid = probeFilter->GetStructuredGridOutput(); auto 
> pointData =
> structuredGrid->GetPointData(); auto tensors = 
> structuredGrid->GetPointData()->GetTensors();
> ________________________________
> Sent from the VTK - Users mailing list archive at Nabble.com.
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at 
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>


From cory.quammen at kitware.com  Tue Nov 28 09:43:43 2017
From: cory.quammen at kitware.com (Cory Quammen)
Date: Tue, 28 Nov 2017 09:43:43 -0500
Subject: [vtkusers] Visualize cell normal vector of polydata
In-Reply-To: <2017112821184103591617@gmail.com>
References: <2017112821184103591617@gmail.com>
Message-ID: <CAB5Fpx4MGU_DScZahqu2xbraa7WMkTZu3xuFw+_BgN4qTbKc6w@mail.gmail.com>

How did you generate the arrow glyphs? My guess is that the problem is
there rather than in the generation of the cell normals, which appears to
me to be correct.

Thanks,
Cory

On Tue, Nov 28, 2017 at 8:20 AM, woshizyc at gmail.com <woshizyc at gmail.com>
wrote:

> Hi, experts,
>
> I want to visualize the normal vectors of a polydata to be centered in the
> center of each triangle.
> I tried to do this for a sphere generated from vtkSphereSource.
>
> I used the following python codes to calculate the normal vectors of the
> sphere:
> sphere = vtk.vtkSphereSource()
> sphere.SetCenter(0, 0, 0)
> sphere.SetRadius(5.0)
> arrow = vtk.vtkArrowSource()
> arrow.Update()
>
> normals = vtk.vtkPolyDataNormals()
> normals.SetInputConnection(sphere.GetOutputPort())
>
> normals.ComputePointNormalsOff()
> normals.ComputeCellNormalsOn()
> normals.SplittingOff()
> normals.FlipNormalsOff()
> normals.ConsistencyOn()
> normals.AutoOrientNormalsOn()
> normals.Update()
>
> However, it seemed that I did not get the correct normal vectors of each
> triangle, as you can see in the attached figure.
> In addition, I also do not know how to move the vectors to the center of
> each triangle.
>
> Could any experts give me some clue for solving this problem.
>
> Are there any example for doing this?
>
> Thanks in advance.
>
> Best,
>
> Yuanchao
>
>
> ------------------------------
> woshizyc at gmail.com
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>


-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.
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From cory.quammen at kitware.com  Tue Nov 28 09:51:18 2017
From: cory.quammen at kitware.com (Cory Quammen)
Date: Tue, 28 Nov 2017 09:51:18 -0500
Subject: [vtkusers] MarchingCubes pointer to incomplete class type is
	not allowed
In-Reply-To: <BL2PR06MB2292BB0FDAC0F83EA91C8000A83A0@BL2PR06MB2292.namprd06.prod.outlook.com>
References: <BL2PR06MB2292BB0FDAC0F83EA91C8000A83A0@BL2PR06MB2292.namprd06.prod.outlook.com>
Message-ID: <CAB5Fpx5x6LR5sRyEVU9E3f1tZe5h1jw8uELvGFSr+8XwHh2Xnw@mail.gmail.com>

Make sure you are including the header files that define the classes
you are using, e.g.

#include <vtkNIFTIImageReader.h>
#include <vtkImageData.h>
#include <vtkMarchingCubes.h>

- Cory


On Tue, Nov 28, 2017 at 9:05 AM, Zou Jing <zjinger at hotmail.com> wrote:
> Dear all,
>
> I want to convert 3D DICOM or NIFTI image to points cloud (.stl) using
> vtkMarchingCubes.
>
> But there is always the error that ?pointer to incomplete class type is not
> allowed?  when I deepcopy volume from reader(show in boldface in following
> code).
>
> I am using  vtk 8.0.1. And I am a novice.
>
> I am looking forward to your answer.
>
> Thank you very much.
>
>
>
> There is the code :
>
> vtkSmartPointer<vtkNIFTIImageReader> reader1 =
> vtkSmartPointer<vtkNIFTIImageReader>::New();
>
>
> reader1->SetFileName("C:/Users/studentx/Desktop/lung/test/case1-00.nii");
>
>        reader1->Update();
>
> vtkSmartPointer<vtkImageData> volume =
>
>               vtkSmartPointer<vtkImageData>::New();
>
> vtkSmartPointer<vtkMarchingCubes> surface =
>
>               vtkSmartPointer<vtkMarchingCubes>::New();
>
> volume->DeepCopy(reader1->GetOutput());
>
> #if VTK_MAJOR_VERSION <= 5
>
>        surface->SetInput(volume);
>
> #else
>
>        surface->SetInputData(volume);
>
> #endif
>
>        surface->ComputeNormalsOn();
>
>        surface->SetValue(0,0.5);
>
>
>
>        vtkSmartPointer<vtkPolyData> moving = vtkSmartPointer
> <vtkPolyData>::New();
>
>        moving->surface->GetOutput();
>
>
>
>        //write polydata
>
>        vtkSmartPointer<vtkPolyDataWriter> writer0 =
> vtkSmartPointer<vtkPolyDataWriter>::New();
>
>
> writer0->SetFileName("C:/Users/studentx/Desktop/lung/test/case1orgin.stl");
>
>        writer0->SetInputData(moving);
>
>        writer0->Write();
>
>
>
>
>
>
>
>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.

From satwik.k8 at gmail.com  Tue Nov 28 10:59:48 2017
From: satwik.k8 at gmail.com (satwik k)
Date: Tue, 28 Nov 2017 21:29:48 +0530
Subject: [vtkusers] CT Gantry Tilt correction
In-Reply-To: <CAPPKgL2P5h8HJySnkwLarmCntpk+X5ufPRWw4GhfJpox21PoBw@mail.gmail.com>
References: <1511763162567-0.post@n5.nabble.com>
 <CANwS1=FwaGK1Og_JwAOgr70mJw+_=DTxhQHR+MtkAhkGQDXwJg@mail.gmail.com>
 <CAPPKgL2qFHPH8fO3fFtuCt+Nb7u42OtHuQW1FoMUqkSfXDto=g@mail.gmail.com>
 <CANwS1=HfHda=XbWsh2A_f0y2OHk3hEcvZ17S+SHbYphGmkhnjQ@mail.gmail.com>
 <CAPPKgL23ZkBEBmzyfsC-uPe0nUYcX+QDQQk-zbEhSMWmO8sWuQ@mail.gmail.com>
 <CANwS1=F3FdhTvhfnbVKxeVO4xk=+OJHnHgoddZP6XS0hJ=FeUA@mail.gmail.com>
 <CAPPKgL2+CkfR_aFf6uY=QZb7tipYma5uwTE+qwaFfVWkzRjSTA@mail.gmail.com>
 <CAPPKgL2P5h8HJySnkwLarmCntpk+X5ufPRWw4GhfJpox21PoBw@mail.gmail.com>
Message-ID: <CAPPKgL2GcDNe2a7kc4ufvRAWXjZyYJiL2gmu8Yj1eVmZ3bgsrg@mail.gmail.com>

Hi David,

I'm using vtkDicomCtRectifier API to correct gantry rotation. But i'm
facing slowness while updating.

Is there any better way to speed up the computation. I tried it, by
enabling SMP, but also facing slowness.



Regards,
Satwik k

On Nov 28, 2017 10:14 AM, "satwik k" <satwik.k8 at gmail.com> wrote:

Hi David, thanx for the reply... VTKDICOM module got compiled after cloning
from git.

Regards,
Satwik k

On Mon, Nov 27, 2017 at 10:14 PM, David Gobbi <david.gobbi at gmail.com> wrote:

> Please keep your replies on-list (CC to vtkusers at vtk.org).
>
> It should build either way, but if you are on Windows, cloning is better
> because git will give you the correct line-endings for the source files
> (i.e. <CR><NL> on Windows instead of just <NL>).
>
> Just to be sure, did you find the build instructions?  They're on the
> following page:
> http://dgobbi.github.io/vtk-dicom/doc/api/installation.html
>
>  - David
>
>
> On Mon, Nov 27, 2017 at 9:28 AM, satwik k <satwik.k8 at gmail.com> wrote:
>
>> Currently I'm trying to build vtkdicom using vtk 7.1..
>> Trying to build using cmake. I'm getting vtkDICOMModule.h missing.
>>
>> I'm using Windows 7 and I downloaded vtkdicom as zip file from github.
>>
>> Should I clone it or by downloading zip file also it builds..?
>>
>> On Nov 27, 2017 21:46, "David Gobbi" <david.gobbi at gmail.com> wrote:
>>
>>> Please keep your replies on-list.
>>>
>>> What version of VTK?  I test every release to make sure that vtk-dicom
>>> builds, but any information you can give might help me understand what's
>>> going wrong.  And what compiler are you using?
>>>
>>>  - David
>>>
>>>
>>>
>>> On Mon, Nov 27, 2017 at 9:04 AM, satwik k <satwik.k8 at gmail.com> wrote:
>>>
>>>> Ya I'm building with vtk.
>>>>
>>>> Regards,
>>>> Satwik k
>>>>
>>>> On Nov 27, 2017 21:33, "David Gobbi" <david.gobbi at gmail.com> wrote:
>>>>
>>>>> How were you building vtkDICOM?  Were you building it with VTK as a
>>>>> VTK module (with Module_vtkDICOM=ON), or were you building vtkDICOM by
>>>>> itself?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Sun, Nov 26, 2017 at 11:12 PM, Satwik <satwik.k8 at gmail.com> wrote:
>>>>>
>>>>>> Hi users,
>>>>>>
>>>>>> How can i make CT gantry tilt correction using vtk.
>>>>>>
>>>>>> I tried using vtkDICOMCTRectifier, but i was not able to compile
>>>>>> vtkDICOM
>>>>>> module.
>>>>>> ERROR: can't able to find vtkDICOMModule.h.
>>>>>>
>>>>>> Regards,
>>>>>> Satwik k
>>>>>>
>>>>>
>>>
>
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From jfavre at cscs.ch  Tue Nov 28 10:59:44 2017
From: jfavre at cscs.ch (Favre  Jean)
Date: Tue, 28 Nov 2017 15:59:44 +0000
Subject: [vtkusers] Visualize cell normal vector of polydata
In-Reply-To: <2017112821184103591617@gmail.com>
References: <2017112821184103591617@gmail.com>
Message-ID: <0EB9B6375711A04B820E6B6F5CCA9F685CA28F43@MBX111.d.ethz.ch>


I am having doubts about the fact that one can *directly* generate cell-centered normal vectors. Looking at the source of ParaView, I see that if the association is FIELD_ASSOCIATION_CELLS, then vtkPVGlyphFilter::UseCellCenters() returns TRUE and a vtkCellCenters() is created to act as input.

for reference:

https://gitlab.kitware.com/paraview/paraview/blob/master/ParaViewCore/VTKExtensions/Default/vtkPVGlyphFilter.cxx

thus my suggestion is to insert a vtkCellCenters() in your pipeline, before the Glyph

-----------------
Jean/CSCS
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From woshizyc at gmail.com  Tue Nov 28 11:07:07 2017
From: woshizyc at gmail.com (woshizyc at gmail.com)
Date: Wed, 29 Nov 2017 00:07:07 +0800
Subject: [vtkusers] Visualize cell normal vector of polydata
References: <2017112821184103591617@gmail.com>, 
 <CAB5Fpx4MGU_DScZahqu2xbraa7WMkTZu3xuFw+_BgN4qTbKc6w@mail.gmail.com>
Message-ID: <2017112823390974292122@gmail.com>

Thanks for your reply and help.

The following is my codes:
sphere = vtk.vtkSphereSource()
sphere.SetCenter(0, 0, 0)
sphere.SetRadius(5.0)
arrow = vtk.vtkArrowSource()
arrow.Update()

normals = vtk.vtkPolyDataNormals()
normals.SetInputConnection(sphere.GetOutputPort())

normals.ComputePointNormalsOff()
normals.ComputeCellNormalsOn()
normals.SplittingOff()
normals.FlipNormalsOff()
normals.ConsistencyOn()
normals.AutoOrientNormalsOn()
normals.Update()

mapper = vtk.vtkPolyDataMapper()
if vtk.VTK_MAJOR_VERSION <= 5:
    mapper.SetInput(sphere.GetOutput())
else:
    mapper.SetInputConnection(sphere.GetOutputPort())

glyph=vtk.vtkGlyph3D()

glyph.SetInputData(normals.GetOutput())
glyph.SetSourceData(arrow.GetOutput())
glyph.SetVectorModeToUseNormal()
glyph.SetScaleModeToScaleByVector()
glyph.SetScaleFactor(1)
glyph.OrientOn()
glyph.Update()
print (glyph)

glyph_mapper=vtk.vtkPolyDataMapper()
glyph_mapper.SetInputData(glyph.GetOutput())
glyph_mapper.ImmediateModeRenderingOn()
glyph_actor=vtk.vtkActor()
glyph_actor.SetMapper(glyph_mapper)
glyph_actor.GetProperty().SetColor(1,0.4,1)

actor = vtk.vtkActor()
actor.SetMapper(mapper)



woshizyc at gmail.com
 
From: Cory Quammen
Date: 2017-11-28 22:43
To: woshizyc at gmail.com
CC: vtkusers
Subject: Re: [vtkusers] Visualize cell normal vector of polydata
How did you generate the arrow glyphs? My guess is that the problem is there rather than in the generation of the cell normals, which appears to me to be correct.

Thanks,
Cory

On Tue, Nov 28, 2017 at 8:20 AM, woshizyc at gmail.com <woshizyc at gmail.com> wrote:
Hi, experts,

I want to visualize the normal vectors of a polydata to be centered in the center of each triangle.
I tried to do this for a sphere generated from vtkSphereSource.

I used the following python codes to calculate the normal vectors of the sphere:
sphere = vtk.vtkSphereSource()
sphere.SetCenter(0, 0, 0)
sphere.SetRadius(5.0)
arrow = vtk.vtkArrowSource()
arrow.Update()

normals = vtk.vtkPolyDataNormals()
normals.SetInputConnection(sphere.GetOutputPort())

normals.ComputePointNormalsOff()
normals.ComputeCellNormalsOn()
normals.SplittingOff()
normals.FlipNormalsOff()
normals.ConsistencyOn()
normals.AutoOrientNormalsOn()
normals.Update()

However, it seemed that I did not get the correct normal vectors of each triangle, as you can see in the attached figure. 
In addition, I also do not know how to move the vectors to the center of each triangle.

Could any experts give me some clue for solving this problem.

Are there any example for doing this?

Thanks in advance.

Best,

Yuanchao




woshizyc at gmail.com

_______________________________________________
Powered by www.kitware.com

Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ

Search the list archives at: http://markmail.org/search/?q=vtkusers

Follow this link to subscribe/unsubscribe:
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-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.
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From david.gobbi at gmail.com  Tue Nov 28 11:15:17 2017
From: david.gobbi at gmail.com (David Gobbi)
Date: Tue, 28 Nov 2017 09:15:17 -0700
Subject: [vtkusers] CT Gantry Tilt correction
In-Reply-To: <CAPPKgL2GcDNe2a7kc4ufvRAWXjZyYJiL2gmu8Yj1eVmZ3bgsrg@mail.gmail.com>
References: <1511763162567-0.post@n5.nabble.com>
 <CANwS1=FwaGK1Og_JwAOgr70mJw+_=DTxhQHR+MtkAhkGQDXwJg@mail.gmail.com>
 <CAPPKgL2qFHPH8fO3fFtuCt+Nb7u42OtHuQW1FoMUqkSfXDto=g@mail.gmail.com>
 <CANwS1=HfHda=XbWsh2A_f0y2OHk3hEcvZ17S+SHbYphGmkhnjQ@mail.gmail.com>
 <CAPPKgL23ZkBEBmzyfsC-uPe0nUYcX+QDQQk-zbEhSMWmO8sWuQ@mail.gmail.com>
 <CANwS1=F3FdhTvhfnbVKxeVO4xk=+OJHnHgoddZP6XS0hJ=FeUA@mail.gmail.com>
 <CAPPKgL2+CkfR_aFf6uY=QZb7tipYma5uwTE+qwaFfVWkzRjSTA@mail.gmail.com>
 <CAPPKgL2P5h8HJySnkwLarmCntpk+X5ufPRWw4GhfJpox21PoBw@mail.gmail.com>
 <CAPPKgL2GcDNe2a7kc4ufvRAWXjZyYJiL2gmu8Yj1eVmZ3bgsrg@mail.gmail.com>
Message-ID: <CANwS1=F-eK4=m3NkJ4e5Tn6Y=coYEPUDGUmG5AaGWUYdfMuWZw@mail.gmail.com>

Hi Satwik,

The VTK imaging pipeline works by "streaming", which means that if you
display one slice, then the entire pipeline is executed for that slice, and
when you move to the next slice, it re-executes for that next slice, etc.

It's easy to keep this from occurring.  Just call Update() on the filter
after you have set up the filter.  Even better, you can use SetInputData()
and GetOutput() to connect the filter.  In VTK 6, 7, and 8 these methods
will disable streaming.

If it still updates slowly after you've done this, let me know.

Cheers,

 - David


On Tue, Nov 28, 2017 at 8:59 AM, satwik k <satwik.k8 at gmail.com> wrote:

> Hi David,
>
> I'm using vtkDicomCtRectifier API to correct gantry rotation. But i'm
> facing slowness while updating.
>
> Is there any better way to speed up the computation. I tried it, by
> enabling SMP, but also facing slowness.
>
>
>
> Regards,
> Satwik k
>
> On Nov 28, 2017 10:14 AM, "satwik k" <satwik.k8 at gmail.com> wrote:
>
> Hi David, thanx for the reply... VTKDICOM module got compiled after
> cloning from git.
>
> Regards,
> Satwik k
>
> On Mon, Nov 27, 2017 at 10:14 PM, David Gobbi <david.gobbi at gmail.com>
> wrote:
>
>> Please keep your replies on-list (CC to vtkusers at vtk.org).
>>
>> It should build either way, but if you are on Windows, cloning is better
>> because git will give you the correct line-endings for the source files
>> (i.e. <CR><NL> on Windows instead of just <NL>).
>>
>> Just to be sure, did you find the build instructions?  They're on the
>> following page:
>> http://dgobbi.github.io/vtk-dicom/doc/api/installation.html
>>
>>  - David
>>
>>
>> On Mon, Nov 27, 2017 at 9:28 AM, satwik k <satwik.k8 at gmail.com> wrote:
>>
>>> Currently I'm trying to build vtkdicom using vtk 7.1..
>>> Trying to build using cmake. I'm getting vtkDICOMModule.h missing.
>>>
>>> I'm using Windows 7 and I downloaded vtkdicom as zip file from github.
>>>
>>> Should I clone it or by downloading zip file also it builds..?
>>>
>>> On Nov 27, 2017 21:46, "David Gobbi" <david.gobbi at gmail.com> wrote:
>>>
>>>> Please keep your replies on-list.
>>>>
>>>> What version of VTK?  I test every release to make sure that vtk-dicom
>>>> builds, but any information you can give might help me understand what's
>>>> going wrong.  And what compiler are you using?
>>>>
>>>>  - David
>>>>
>>>>
>>>>
>>>> On Mon, Nov 27, 2017 at 9:04 AM, satwik k <satwik.k8 at gmail.com> wrote:
>>>>
>>>>> Ya I'm building with vtk.
>>>>>
>>>>> Regards,
>>>>> Satwik k
>>>>>
>>>>> On Nov 27, 2017 21:33, "David Gobbi" <david.gobbi at gmail.com> wrote:
>>>>>
>>>>>> How were you building vtkDICOM?  Were you building it with VTK as a
>>>>>> VTK module (with Module_vtkDICOM=ON), or were you building vtkDICOM by
>>>>>> itself?
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Sun, Nov 26, 2017 at 11:12 PM, Satwik <satwik.k8 at gmail.com> wrote:
>>>>>>
>>>>>>> Hi users,
>>>>>>>
>>>>>>> How can i make CT gantry tilt correction using vtk.
>>>>>>>
>>>>>>> I tried using vtkDICOMCTRectifier, but i was not able to compile
>>>>>>> vtkDICOM
>>>>>>> module.
>>>>>>> ERROR: can't able to find vtkDICOMModule.h.
>>>>>>>
>>>>>>> Regards,
>>>>>>> Satwik k
>>>>>>>
>>>>>>
>>>>
>>
>
>
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From cory.quammen at kitware.com  Tue Nov 28 11:18:04 2017
From: cory.quammen at kitware.com (Cory Quammen)
Date: Tue, 28 Nov 2017 11:18:04 -0500
Subject: [vtkusers] Visualize cell normal vector of polydata
In-Reply-To: <0EB9B6375711A04B820E6B6F5CCA9F685CA28F43@MBX111.d.ethz.ch>
References: <2017112821184103591617@gmail.com>
 <0EB9B6375711A04B820E6B6F5CCA9F685CA28F43@MBX111.d.ethz.ch>
Message-ID: <CAB5Fpx79QqwqthNjr_u9UwCC9anJ_4rbX9ji8A8AeMATT2jE+g@mail.gmail.com>

On Tue, Nov 28, 2017 at 10:59 AM, Favre  Jean <jfavre at cscs.ch> wrote:
>
> I am having doubts about the fact that one can *directly* generate
> cell-centered normal vectors. Looking at the source of ParaView, I see that
> if the association is FIELD_ASSOCIATION_CELLS, then
> vtkPVGlyphFilter::UseCellCenters() returns TRUE and a vtkCellCenters() is
> created to act as input.
>
> for reference:
>
> https://gitlab.kitware.com/paraview/paraview/blob/master/ParaViewCore/VTKExtensions/Default/vtkPVGlyphFilter.cxx
>
> thus my suggestion is to insert a vtkCellCenters() in your pipeline, before
> the Glyph

Yep, I agree. The vtkGlyph3D filter operates only on input point data,
so you will definitely need to add a vtkCellCenters filter before the
glypher. vtkCellCenters copies cell data to point data in its output,
which is exactly what you need for vtkGlyph3D.

Cory

> -----------------
> Jean/CSCS
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.

From jfavre at cscs.ch  Tue Nov 28 11:21:18 2017
From: jfavre at cscs.ch (Favre  Jean)
Date: Tue, 28 Nov 2017 16:21:18 +0000
Subject: [vtkusers] Visualize cell normal vector of polydata
In-Reply-To: <2017112823390974292122@gmail.com>
References: <2017112821184103591617@gmail.com>,
 <CAB5Fpx4MGU_DScZahqu2xbraa7WMkTZu3xuFw+_BgN4qTbKc6w@mail.gmail.com>,
 <2017112823390974292122@gmail.com>
Message-ID: <0EB9B6375711A04B820E6B6F5CCA9F685CA28F6C@MBX111.d.ethz.ch>

more specifically:

centers = vtk.vtkCellCenters()
centers.SetInputConnection(normals.GetOutputPort())

glyph.SetInputConnection(centers.GetOutputPort())

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From sebastien.jourdain at kitware.com  Tue Nov 28 12:12:08 2017
From: sebastien.jourdain at kitware.com (Sebastien Jourdain)
Date: Tue, 28 Nov 2017 10:12:08 -0700
Subject: [vtkusers] ANN: vtk.js, an Open-Source Toolkit for SciVis on the Web
Message-ID: <CABObKxfzgVj2Wi_s1QbEgDf2SebqzbwoCtvX66DT5+Mng9SdoQ@mail.gmail.com>

The Kitware team is pleased to announce vtk.js, a WebGL library taking the
best of VTK to the Web.
To learn more, click on the link for our blog post.

https://blog.kitware.com/vtk-js-the-visualization-toolkit-on-the-web/

And if you want to follow along the progress of the project, star it on
github!

https://github.com/Kitware/vtk-js

Feel free to leave feedback on the mailing list or issue tracker.

Thank you all for making VTK such a great platform for SciViz!

Sebastien
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From satwik.k8 at gmail.com  Tue Nov 28 13:17:15 2017
From: satwik.k8 at gmail.com (satwik k)
Date: Tue, 28 Nov 2017 23:47:15 +0530
Subject: [vtkusers] CT Gantry Tilt correction
In-Reply-To: <CANwS1=F-eK4=m3NkJ4e5Tn6Y=coYEPUDGUmG5AaGWUYdfMuWZw@mail.gmail.com>
References: <1511763162567-0.post@n5.nabble.com>
 <CANwS1=FwaGK1Og_JwAOgr70mJw+_=DTxhQHR+MtkAhkGQDXwJg@mail.gmail.com>
 <CAPPKgL2qFHPH8fO3fFtuCt+Nb7u42OtHuQW1FoMUqkSfXDto=g@mail.gmail.com>
 <CANwS1=HfHda=XbWsh2A_f0y2OHk3hEcvZ17S+SHbYphGmkhnjQ@mail.gmail.com>
 <CAPPKgL23ZkBEBmzyfsC-uPe0nUYcX+QDQQk-zbEhSMWmO8sWuQ@mail.gmail.com>
 <CANwS1=F3FdhTvhfnbVKxeVO4xk=+OJHnHgoddZP6XS0hJ=FeUA@mail.gmail.com>
 <CAPPKgL2+CkfR_aFf6uY=QZb7tipYma5uwTE+qwaFfVWkzRjSTA@mail.gmail.com>
 <CAPPKgL2P5h8HJySnkwLarmCntpk+X5ufPRWw4GhfJpox21PoBw@mail.gmail.com>
 <CAPPKgL2GcDNe2a7kc4ufvRAWXjZyYJiL2gmu8Yj1eVmZ3bgsrg@mail.gmail.com>
 <CANwS1=F-eK4=m3NkJ4e5Tn6Y=coYEPUDGUmG5AaGWUYdfMuWZw@mail.gmail.com>
Message-ID: <CAPPKgL0iW==N47qejWkZ6myerFsZFn6jP06LKBF0snQHANpzhg@mail.gmail.com>

I'm passing image data as an input to vtkDicomCtRectifier and matrix to a
method volumeMatrix and I'm calling update method...

This update method is taking time... I'm updating the entire cuboid at a
time.. so it is taking 1min.

Regards,
Satwik k

On Nov 28, 2017 9:45 PM, "David Gobbi" <david.gobbi at gmail.com> wrote:

> Hi Satwik,
>
> The VTK imaging pipeline works by "streaming", which means that if you
> display one slice, then the entire pipeline is executed for that slice, and
> when you move to the next slice, it re-executes for that next slice, etc.
>
> It's easy to keep this from occurring.  Just call Update() on the filter
> after you have set up the filter.  Even better, you can use SetInputData()
> and GetOutput() to connect the filter.  In VTK 6, 7, and 8 these methods
> will disable streaming.
>
> If it still updates slowly after you've done this, let me know.
>
> Cheers,
>
>  - David
>
>
> On Tue, Nov 28, 2017 at 8:59 AM, satwik k <satwik.k8 at gmail.com> wrote:
>
>> Hi David,
>>
>> I'm using vtkDicomCtRectifier API to correct gantry rotation. But i'm
>> facing slowness while updating.
>>
>> Is there any better way to speed up the computation. I tried it, by
>> enabling SMP, but also facing slowness.
>>
>>
>>
>> Regards,
>> Satwik k
>>
>> On Nov 28, 2017 10:14 AM, "satwik k" <satwik.k8 at gmail.com> wrote:
>>
>> Hi David, thanx for the reply... VTKDICOM module got compiled after
>> cloning from git.
>>
>> Regards,
>> Satwik k
>>
>> On Mon, Nov 27, 2017 at 10:14 PM, David Gobbi <david.gobbi at gmail.com>
>> wrote:
>>
>>> Please keep your replies on-list (CC to vtkusers at vtk.org).
>>>
>>> It should build either way, but if you are on Windows, cloning is better
>>> because git will give you the correct line-endings for the source files
>>> (i.e. <CR><NL> on Windows instead of just <NL>).
>>>
>>> Just to be sure, did you find the build instructions?  They're on the
>>> following page:
>>> http://dgobbi.github.io/vtk-dicom/doc/api/installation.html
>>>
>>>  - David
>>>
>>>
>>> On Mon, Nov 27, 2017 at 9:28 AM, satwik k <satwik.k8 at gmail.com> wrote:
>>>
>>>> Currently I'm trying to build vtkdicom using vtk 7.1..
>>>> Trying to build using cmake. I'm getting vtkDICOMModule.h missing.
>>>>
>>>> I'm using Windows 7 and I downloaded vtkdicom as zip file from github.
>>>>
>>>> Should I clone it or by downloading zip file also it builds..?
>>>>
>>>> On Nov 27, 2017 21:46, "David Gobbi" <david.gobbi at gmail.com> wrote:
>>>>
>>>>> Please keep your replies on-list.
>>>>>
>>>>> What version of VTK?  I test every release to make sure that vtk-dicom
>>>>> builds, but any information you can give might help me understand what's
>>>>> going wrong.  And what compiler are you using?
>>>>>
>>>>>  - David
>>>>>
>>>>>
>>>>>
>>>>> On Mon, Nov 27, 2017 at 9:04 AM, satwik k <satwik.k8 at gmail.com> wrote:
>>>>>
>>>>>> Ya I'm building with vtk.
>>>>>>
>>>>>> Regards,
>>>>>> Satwik k
>>>>>>
>>>>>> On Nov 27, 2017 21:33, "David Gobbi" <david.gobbi at gmail.com> wrote:
>>>>>>
>>>>>>> How were you building vtkDICOM?  Were you building it with VTK as a
>>>>>>> VTK module (with Module_vtkDICOM=ON), or were you building vtkDICOM by
>>>>>>> itself?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Sun, Nov 26, 2017 at 11:12 PM, Satwik <satwik.k8 at gmail.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Hi users,
>>>>>>>>
>>>>>>>> How can i make CT gantry tilt correction using vtk.
>>>>>>>>
>>>>>>>> I tried using vtkDICOMCTRectifier, but i was not able to compile
>>>>>>>> vtkDICOM
>>>>>>>> module.
>>>>>>>> ERROR: can't able to find vtkDICOMModule.h.
>>>>>>>>
>>>>>>>> Regards,
>>>>>>>> Satwik k
>>>>>>>>
>>>>>>>
>>>>>
>>>
>>
>>
>
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From fromseattle at gmail.com  Tue Nov 28 13:20:06 2017
From: fromseattle at gmail.com (Frank Sea)
Date: Tue, 28 Nov 2017 11:20:06 -0700 (MST)
Subject: [vtkusers] vtkTextActor render utf8 characters not working
In-Reply-To: <CA+=e1ovRA2ED2wZRhvSC-+QZcaw1o=B2KCpmXn+m60crQ_2Oww@mail.gmail.com>
References: <1511321483500-0.post@n5.nabble.com>
 <CA+=e1ovRA2ED2wZRhvSC-+QZcaw1o=B2KCpmXn+m60crQ_2Oww@mail.gmail.com>
Message-ID: <1511893206620-0.post@n5.nabble.com>

Downloaded the DroidSansFallbackFull.ttf from a different location and now it
works. Thanks for the reply.



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From david.gobbi at gmail.com  Tue Nov 28 13:31:17 2017
From: david.gobbi at gmail.com (David Gobbi)
Date: Tue, 28 Nov 2017 11:31:17 -0700
Subject: [vtkusers] CT Gantry Tilt correction
In-Reply-To: <CAPPKgL0iW==N47qejWkZ6myerFsZFn6jP06LKBF0snQHANpzhg@mail.gmail.com>
References: <1511763162567-0.post@n5.nabble.com>
 <CANwS1=FwaGK1Og_JwAOgr70mJw+_=DTxhQHR+MtkAhkGQDXwJg@mail.gmail.com>
 <CAPPKgL2qFHPH8fO3fFtuCt+Nb7u42OtHuQW1FoMUqkSfXDto=g@mail.gmail.com>
 <CANwS1=HfHda=XbWsh2A_f0y2OHk3hEcvZ17S+SHbYphGmkhnjQ@mail.gmail.com>
 <CAPPKgL23ZkBEBmzyfsC-uPe0nUYcX+QDQQk-zbEhSMWmO8sWuQ@mail.gmail.com>
 <CANwS1=F3FdhTvhfnbVKxeVO4xk=+OJHnHgoddZP6XS0hJ=FeUA@mail.gmail.com>
 <CAPPKgL2+CkfR_aFf6uY=QZb7tipYma5uwTE+qwaFfVWkzRjSTA@mail.gmail.com>
 <CAPPKgL2P5h8HJySnkwLarmCntpk+X5ufPRWw4GhfJpox21PoBw@mail.gmail.com>
 <CAPPKgL2GcDNe2a7kc4ufvRAWXjZyYJiL2gmu8Yj1eVmZ3bgsrg@mail.gmail.com>
 <CANwS1=F-eK4=m3NkJ4e5Tn6Y=coYEPUDGUmG5AaGWUYdfMuWZw@mail.gmail.com>
 <CAPPKgL0iW==N47qejWkZ6myerFsZFn6jP06LKBF0snQHANpzhg@mail.gmail.com>
Message-ID: <CANwS1=Gc9jQuqFL0kQV_+mkwqzX4nXMMunA66NCPRJSki7oWtQ@mail.gmail.com>

Give me more info... what are the dimensions of your volume?

On Tue, Nov 28, 2017 at 11:17 AM, satwik k <satwik.k8 at gmail.com> wrote:

> I'm passing image data as an input to vtkDicomCtRectifier and matrix to a
> method volumeMatrix and I'm calling update method...
>
> This update method is taking time... I'm updating the entire cuboid at a
> time.. so it is taking 1min.
>
> Regards,
> Satwik k
>
> On Nov 28, 2017 9:45 PM, "David Gobbi" <david.gobbi at gmail.com> wrote:
>
>> Hi Satwik,
>>
>> The VTK imaging pipeline works by "streaming", which means that if you
>> display one slice, then the entire pipeline is executed for that slice, and
>> when you move to the next slice, it re-executes for that next slice, etc.
>>
>> It's easy to keep this from occurring.  Just call Update() on the filter
>> after you have set up the filter.  Even better, you can use SetInputData()
>> and GetOutput() to connect the filter.  In VTK 6, 7, and 8 these methods
>> will disable streaming.
>>
>> If it still updates slowly after you've done this, let me know.
>>
>> Cheers,
>>
>>  - David
>>
>>
>> On Tue, Nov 28, 2017 at 8:59 AM, satwik k <satwik.k8 at gmail.com> wrote:
>>
>>> Hi David,
>>>
>>> I'm using vtkDicomCtRectifier API to correct gantry rotation. But i'm
>>> facing slowness while updating.
>>>
>>> Is there any better way to speed up the computation. I tried it, by
>>> enabling SMP, but also facing slowness.
>>>
>>>
>>>
>>> Regards,
>>> Satwik k
>>>
>>> On Nov 28, 2017 10:14 AM, "satwik k" <satwik.k8 at gmail.com> wrote:
>>>
>>> Hi David, thanx for the reply... VTKDICOM module got compiled after
>>> cloning from git.
>>>
>>> Regards,
>>> Satwik k
>>>
>>> On Mon, Nov 27, 2017 at 10:14 PM, David Gobbi <david.gobbi at gmail.com>
>>> wrote:
>>>
>>>> Please keep your replies on-list (CC to vtkusers at vtk.org).
>>>>
>>>> It should build either way, but if you are on Windows, cloning is
>>>> better because git will give you the correct line-endings for the source
>>>> files (i.e. <CR><NL> on Windows instead of just <NL>).
>>>>
>>>> Just to be sure, did you find the build instructions?  They're on the
>>>> following page:
>>>> http://dgobbi.github.io/vtk-dicom/doc/api/installation.html
>>>>
>>>>  - David
>>>>
>>>>
>>>> On Mon, Nov 27, 2017 at 9:28 AM, satwik k <satwik.k8 at gmail.com> wrote:
>>>>
>>>>> Currently I'm trying to build vtkdicom using vtk 7.1..
>>>>> Trying to build using cmake. I'm getting vtkDICOMModule.h missing.
>>>>>
>>>>> I'm using Windows 7 and I downloaded vtkdicom as zip file from github.
>>>>>
>>>>> Should I clone it or by downloading zip file also it builds..?
>>>>>
>>>>> On Nov 27, 2017 21:46, "David Gobbi" <david.gobbi at gmail.com> wrote:
>>>>>
>>>>>> Please keep your replies on-list.
>>>>>>
>>>>>> What version of VTK?  I test every release to make sure that
>>>>>> vtk-dicom builds, but any information you can give might help me understand
>>>>>> what's going wrong.  And what compiler are you using?
>>>>>>
>>>>>>  - David
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Mon, Nov 27, 2017 at 9:04 AM, satwik k <satwik.k8 at gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> Ya I'm building with vtk.
>>>>>>>
>>>>>>> Regards,
>>>>>>> Satwik k
>>>>>>>
>>>>>>> On Nov 27, 2017 21:33, "David Gobbi" <david.gobbi at gmail.com> wrote:
>>>>>>>
>>>>>>>> How were you building vtkDICOM?  Were you building it with VTK as a
>>>>>>>> VTK module (with Module_vtkDICOM=ON), or were you building vtkDICOM by
>>>>>>>> itself?
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Sun, Nov 26, 2017 at 11:12 PM, Satwik <satwik.k8 at gmail.com>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>> Hi users,
>>>>>>>>>
>>>>>>>>> How can i make CT gantry tilt correction using vtk.
>>>>>>>>>
>>>>>>>>> I tried using vtkDICOMCTRectifier, but i was not able to compile
>>>>>>>>> vtkDICOM
>>>>>>>>> module.
>>>>>>>>> ERROR: can't able to find vtkDICOMModule.h.
>>>>>>>>>
>>>>>>>>> Regards,
>>>>>>>>> Satwik k
>>>>>>>>>
>>>>>>>>
>>>>>>
>>>>
>>>
>>>
>>
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From allison.vacanti at kitware.com  Tue Nov 28 15:35:37 2017
From: allison.vacanti at kitware.com (Allie Vacanti)
Date: Tue, 28 Nov 2017 15:35:37 -0500
Subject: [vtkusers] Is anyone using Octree Fractal
	(vtkHyperOctreeFractalSource)?
Message-ID: <CA+=e1ovASPb=vDk0n71MR77162+gdgkWZvtr1HDGJg6gwY_BuQ@mail.gmail.com>

Unless there is a reason not to, we will be deprecating this class soon as
per https://gitlab.kitware.com/paraview/paraview/issues/17791.

Let me know if you'd like it to stay.

Allie
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From cory.quammen at kitware.com  Tue Nov 28 19:58:10 2017
From: cory.quammen at kitware.com (Cory Quammen)
Date: Tue, 28 Nov 2017 19:58:10 -0500
Subject: [vtkusers] MarchingCubes pointer to incomplete class type is
	not allowed
In-Reply-To: <BL2PR06MB2292F0268A3AC2BB36341C47A83B0@BL2PR06MB2292.namprd06.prod.outlook.com>
References: <BL2PR06MB2292BB0FDAC0F83EA91C8000A83A0@BL2PR06MB2292.namprd06.prod.outlook.com>
 <CAB5Fpx5x6LR5sRyEVU9E3f1tZe5h1jw8uELvGFSr+8XwHh2Xnw@mail.gmail.com>
 <BL2PR06MB2292F0268A3AC2BB36341C47A83B0@BL2PR06MB2292.namprd06.prod.outlook.com>
Message-ID: <CAB5Fpx7aeONQLR=rTK9b1qHCmNWOuKusi6QQkg7Ai_TVCA+=zw@mail.gmail.com>

On Tue, Nov 28, 2017 at 7:57 PM, Zou Jing <zjinger at hotmail.com> wrote:
> Thanks a lot.
> I forgot #include <vtkImageData.h>
> Best regards.
> Jing

You're welcome :-)

Cory

>
> -----Original Message-----
> From: Cory Quammen [mailto:cory.quammen at kitware.com]
> Sent: Tuesday, November 28, 2017 10:51 PM
> To: Zou Jing <zjinger at hotmail.com>
> Cc: vtkusers at vtk.org
> Subject: Re: [vtkusers] MarchingCubes pointer to incomplete class type is not allowed
>
> Make sure you are including the header files that define the classes you are using, e.g.
>
> #include <vtkNIFTIImageReader.h>
> #include <vtkImageData.h>
> #include <vtkMarchingCubes.h>
>
> - Cory
>
>
> On Tue, Nov 28, 2017 at 9:05 AM, Zou Jing <zjinger at hotmail.com> wrote:
>> Dear all,
>>
>> I want to convert 3D DICOM or NIFTI image to points cloud (.stl) using
>> vtkMarchingCubes.
>>
>> But there is always the error that ?pointer to incomplete class type
>> is not allowed?  when I deepcopy volume from reader(show in boldface
>> in following code).
>>
>> I am using  vtk 8.0.1. And I am a novice.
>>
>> I am looking forward to your answer.
>>
>> Thank you very much.
>>
>>
>>
>> There is the code :
>>
>> vtkSmartPointer<vtkNIFTIImageReader> reader1 =
>> vtkSmartPointer<vtkNIFTIImageReader>::New();
>>
>>
>> reader1->SetFileName("C:/Users/studentx/Desktop/lung/test/case1-00.nii
>> reader1->");
>>
>>        reader1->Update();
>>
>> vtkSmartPointer<vtkImageData> volume =
>>
>>               vtkSmartPointer<vtkImageData>::New();
>>
>> vtkSmartPointer<vtkMarchingCubes> surface =
>>
>>               vtkSmartPointer<vtkMarchingCubes>::New();
>>
>> volume->DeepCopy(reader1->GetOutput());
>>
>> #if VTK_MAJOR_VERSION <= 5
>>
>>        surface->SetInput(volume);
>>
>> #else
>>
>>        surface->SetInputData(volume);
>>
>> #endif
>>
>>        surface->ComputeNormalsOn();
>>
>>        surface->SetValue(0,0.5);
>>
>>
>>
>>        vtkSmartPointer<vtkPolyData> moving = vtkSmartPointer
>> <vtkPolyData>::New();
>>
>>        moving->surface->GetOutput();
>>
>>
>>
>>        //write polydata
>>
>>        vtkSmartPointer<vtkPolyDataWriter> writer0 =
>> vtkSmartPointer<vtkPolyDataWriter>::New();
>>
>>
>> writer0->SetFileName("C:/Users/studentx/Desktop/lung/test/case1orgin.s
>> writer0->tl");
>>
>>        writer0->SetInputData(moving);
>>
>>        writer0->Write();
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/vtkusers
>>
>
>
>
> --
> Cory Quammen
> Staff R&D Engineer
> Kitware, Inc.



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.

From rccm.kyoshimi at gmail.com  Tue Nov 28 20:46:00 2017
From: rccm.kyoshimi at gmail.com (kenichiro yoshimi)
Date: Wed, 29 Nov 2017 10:46:00 +0900
Subject: [vtkusers] Regularly sample 3D unstructured tensor grid
In-Reply-To: <021a01d36854$664f2200$32ed6600$@gmail.com>
References: <1511527683507-0.post@n5.nabble.com>
 <CAHDyfPBaVd9Uf3W7pm2TNA8hGKsy7P+4rMaov-q=hYvPpZW7PA@mail.gmail.com>
 <021a01d36854$664f2200$32ed6600$@gmail.com>
Message-ID: <CAHDyfPC0XWV09+U=1d=knseJfjuQfZzq6vPLYSHgQTM8LZe3DQ@mail.gmail.com>

Hello,

The reason why resampling fails cannot be found, but at least, the order of
IJK-coordinates of the structured points is needed to be changed in reverse.

for (int z = 0; z < gridSize.z; z++) {
  for (int y = 0; y < gridSize.y; y++) {
    for (int x = 0; x < gridSize.x; x++) {
     ...

Also I attached a sample that works.
Hope that helps to solve.

2017-11-28 23:23 GMT+09:00 Jochen Jankowai <jochen.jankowai at gmail.com>:

> Hi,
> Thank you for your reply! I have adjusted my code according to your
> suggestions which had the effect that I am not getting a nullptr any longer.
> The resulting structured grid has 0 values at all positions though.
> Am I forgetting to specify that/how I want to interpolate the tensors or
> something like that?
>
> See code below:
>
>     auto reader = vtkUnstructuredGridReader::New();
>
>     reader->SetFileName(file_.get().c_str());
>
>     reader->SetReadAllTensors(1);
>
>     reader->Update();
>
>     auto unstructuredGrid = reader->GetOutput();
>
>     auto bounds = unstructuredGrid->GetBounds();
>
>     // Create a grid of points to interpolate over
>     auto gridSize = ivec3(32);
>     const auto gridBounds = dvec3(31);
>     vtkSmartPointer<vtkPoints> gridPoints = vtkSmartPointer<vtkPoints>::
> New();
>
>     const auto xRange = std::abs(bounds[0] - bounds[1]);
>     const auto yRange = std::abs(bounds[2] - bounds[3]);
>     const auto zRange = std::abs(bounds[4] - bounds[5]);
>
>     const auto stepSize = dvec3(xRange / gridBounds.x, yRange /
> gridBounds.y, zRange / gridBounds.z);
>
>     for (int x = 0; x < gridSize.x; x++) {
>         for (int y = 0; y < gridSize.y; y++) {
>             for (int z = 0; z < gridSize.z; z++) {
>                 const auto xCoord = bounds[0] + static_cast<double>(x) *
> stepSize.x;
>                 const auto yCoord = bounds[2] + static_cast<double>(y) *
> stepSize.y;
>                 const auto zCoord = bounds[4] + static_cast<double>(z) *
> stepSize.z;
>                 gridPoints->InsertNextPoint(xCoord, yCoord, zCoord);
>             }
>         }
>     }
>
>     // Create a dataset from the grid points
>      vtkSmartPointer<vtkStructuredGrid> pointSet =
>         vtkSmartPointer<vtkStructuredGrid>::New();
>      pointSet->SetDimensions(glm::value_ptr(gridSize));
>      pointSet->SetPoints(gridPoints);
>
>      vtkSmartPointer<vtkProbeFilter> probeFilter =
>         vtkSmartPointer<vtkProbeFilter>::New();
>      probeFilter->SetSourceData(unstructuredGrid);
>
>      probeFilter->SetInputData(pointSet);
>
>      probeFilter->Update();
>
>      auto structuredGrid = probeFilter->GetStructuredGridOutput();
>
>      auto pointData = structuredGrid->GetPointData();
>      auto tensors = pointData->GetArray("strain_0.0");
>
>
>
> -----Original Message-----
> From: kenichiro yoshimi [mailto:rccm.kyoshimi at gmail.com]
> Sent: den 25 november 2017 04:50
> To: PetiteViking <jochen.jankowai at gmail.com>
> Cc: vtkusers at vtk.org
> Subject: Re: [vtkusers] Regularly sample 3D unstructured tensor grid
>
> Hi,
>
> The standard way of retrieving PointData is not  auto tensors =
> pointData->GetArray(); but  auto tensors = pointData->GetArray(0);  auto
> tensors = pointData->GetArray("array-name");
>  auto tensors = pointData->GetTensors("array-name");
>
> vtkPointData inherits from vtkDataSetAttributes and
> pointData->GetArray() is trying to access the FieldData which
> describes global properties of pointData, but it is null.
>
> Thanks
>
> 2017-11-24 21:48 GMT+09:00 PetiteViking <jochen.jankowai at gmail.com>:
> > Hello everyone! I've tried to find an answer to my problem in the
> > forum for quite some time now but I cannot seem to find a solution. I
> > have an unstructured hexahedral grid that stores one tensor per cell.
> > What I need in my application though is a regulargrid so I would like
> > to regularly sample the field. So far, this is what I am trying to
> > (see code below). In one of the posts here I have read that
> > vtkProbeFilter will produce output that corresponds to the input so I
> > amusing a structured grid as input for which I have computed points.
> > And while I manage to retreive a structured grid from the probeFilter,
> > the variable tensors ends up being a nullptr. auto reader =
> > vtkUnstructuredGridReader::New();
> > reader->SetFileName(file_.get().c_str());
> > reader->Update(); auto unstructuredGrid = reader->GetOutput(); //
> > reader->Create a
> > grid of points to interpolate over auto gridSize = glm::ivec3(32, 32,
> > 32); vtkSmartPointer<vtkPoints> gridPoints =
> > vtkSmartPointer<vtkPoints>::New();
> > for (int x = 0; x < gridSize.x; x++) { for (int y = 0; y <
> > gridSize.y; y++) { for (int z = 0; z < gridSize.z; z++) {
> > gridPoints->InsertNextPoint(x, y, z); } } } // Create a dataset
> > from the grid points vtkSmartPointer<vtkStructuredGrid> pointSet =
> > vtkSmartPointer<vtkStructuredGrid>::New();
> > pointSet->SetDimensions(glm::value_ptr(gridSize));
> > pointSet->SetPoints(gridPoints); vtkSmartPointer<vtkProbeFilter>
> > pointSet->probeFilter
> > = vtkSmartPointer<vtkProbeFilter>::New();
> > probeFilter->SetSourceData(unstructuredGrid);
> > probeFilter->SetInputData(pointSet); probeFilter->Update(); auto
> > structuredGrid = probeFilter->GetStructuredGridOutput(); auto
> > pointData =
> > structuredGrid->GetPointData(); auto tensors =
> > structuredGrid->GetPointData()->GetTensors();
> > ________________________________
> > Sent from the VTK - Users mailing list archive at Nabble.com.
> >
> > _______________________________________________
> > Powered by www.kitware.com
> >
> > Visit other Kitware open-source projects at
> > http://www.kitware.com/opensource/opensource.html
> >
> > Please keep messages on-topic and check the VTK FAQ at:
> > http://www.vtk.org/Wiki/VTK_FAQ
> >
> > Search the list archives at: http://markmail.org/search/?q=vtkusers
> >
> > Follow this link to subscribe/unsubscribe:
> > http://public.kitware.com/mailman/listinfo/vtkusers
> >
>
>
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From 278124177 at qq.com  Wed Nov 29 05:23:42 2017
From: 278124177 at qq.com (=?gb18030?B?zui3qM7ozOw=?=)
Date: Wed, 29 Nov 2017 18:23:42 +0800
Subject: [vtkusers] visualize DTI(Diffuse tensor iamge) using VTK
Message-ID: <tencent_BD2D798FB689D670257693312EF31A40600A@qq.com>

HI?
    i am learnning to visualize the dti ,  how can i do this  with vtk?
   Any advice will be great appreciated. 

   Regards,
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From woshizyc at gmail.com  Wed Nov 29 06:42:01 2017
From: woshizyc at gmail.com (woshizyc at gmail.com)
Date: Wed, 29 Nov 2017 19:42:01 +0800
Subject: [vtkusers] Visualize cell normal vector of polydata
References: <2017112821184103591617@gmail.com>, 
 <CAB5Fpx4MGU_DScZahqu2xbraa7WMkTZu3xuFw+_BgN4qTbKc6w@mail.gmail.com>, 
 <2017112823390974292122@gmail.com>, 
 <0EB9B6375711A04B820E6B6F5CCA9F685CA28F6C@MBX111.d.ethz.ch>
Message-ID: <201711291814208696999@gmail.com>

Thanks for your reply. It works.

The normals of the triangles are correct. What if I want to visualize only some of the normals?
Can I just modify the normal vector of the point data of centers?
I tried to set all the normal vectors that I do not want to visualize to (0,0,0). However, it does not work out as I expected. Please see the attached figure.

I want to set the vectors of red regions to be zero and leave the vectors of the blue regions untouched.

I set the normals of the red regions to be zero.

I got the attached figure, which is not what I want

Thanks a lot.






woshizyc at gmail.com
 
From: Favre Jean
Date: 2017-11-29 00:21
To: woshizyc at gmail.com; Cory Quammen
CC: vtkusers
Subject: RE: [vtkusers] Visualize cell normal vector of polydata
more specifically:

centers = vtk.vtkCellCenters()
centers.SetInputConnection(normals.GetOutputPort())

glyph.SetInputConnection(centers.GetOutputPort())

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From cory.quammen at kitware.com  Wed Nov 29 09:42:37 2017
From: cory.quammen at kitware.com (Cory Quammen)
Date: Wed, 29 Nov 2017 09:42:37 -0500
Subject: [vtkusers] Visualize cell normal vector of polydata
In-Reply-To: <201711291814208696999@gmail.com>
References: <2017112821184103591617@gmail.com>
 <CAB5Fpx4MGU_DScZahqu2xbraa7WMkTZu3xuFw+_BgN4qTbKc6w@mail.gmail.com>
 <2017112823390974292122@gmail.com>
 <0EB9B6375711A04B820E6B6F5CCA9F685CA28F6C@MBX111.d.ethz.ch>
 <201711291814208696999@gmail.com>
Message-ID: <CAB5Fpx6k=OpYxmjsg5nOVD7m6ArYijyi0xYcw9vnOiccUKfK9w@mail.gmail.com>

If their is a scalar value that controls which arrow glyphs you want
to see, you can use vtkThreshold applied to vtkGlyph3D to exclude
those you don't want to see.

Cory

On Wed, Nov 29, 2017 at 6:42 AM, woshizyc at gmail.com <woshizyc at gmail.com> wrote:
> Thanks for your reply. It works.
>
> The normals of the triangles are correct. What if I want to visualize only
> some of the normals?
> Can I just modify the normal vector of the point data of centers?
> I tried to set all the normal vectors that I do not want to visualize to
> (0,0,0). However, it does not work out as I expected. Please see the
> attached figure.
>
> I want to set the vectors of red regions to be zero and leave the vectors of
> the blue regions untouched.
>
> I set the normals of the red regions to be zero.
>
> I got the attached figure, which is not what I want
>
> Thanks a lot.
>
>
>
>
> ________________________________
> woshizyc at gmail.com
>
>
> From: Favre Jean
> Date: 2017-11-29 00:21
> To: woshizyc at gmail.com; Cory Quammen
> CC: vtkusers
> Subject: RE: [vtkusers] Visualize cell normal vector of polydata
> more specifically:
>
> centers = vtk.vtkCellCenters()
> centers.SetInputConnection(normals.GetOutputPort())
>
> glyph.SetInputConnection(centers.GetOutputPort())
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.

From m.nunes at fratoria.com  Wed Nov 29 09:51:30 2017
From: m.nunes at fratoria.com (Miguel)
Date: Wed, 29 Nov 2017 07:51:30 -0700 (MST)
Subject: [vtkusers] Size of labels in vtkScalarBarActor
In-Reply-To: <CA+zyc0XmvMnYgec-eXZYEx6ZLcTYTSt3hyz3jOp5=_YzLqGRXQ@mail.gmail.com>
References: <CA+zyc0XcZ-AgX4EdDJ4Nqj09r7ByzwE1aZoFJerxjXdUs91NnA@mail.gmail.com>
 <CAB5Fpx7hpxiacMOUdJ0RcLpVTW2sZ4EmBDF0JLVETA65cy2FsQ@mail.gmail.com>
 <CA+zyc0XoiMymL1AqdzaCsPszd6KfDwfqO3nuCDUz1b5wZWEb2w@mail.gmail.com>
 <CAB5Fpx6=_3VLWgkuFUJUcz4CtpiWt4AeiM087ETec4fYORYwvg@mail.gmail.com>
 <CA+zyc0XmvMnYgec-eXZYEx6ZLcTYTSt3hyz3jOp5=_YzLqGRXQ@mail.gmail.com>
Message-ID: <1511967090568-0.post@n5.nabble.com>

Hello,
I am trying to mimic Fernando's work but after adding the scaleBar to the
renderer, I get a crash when refreshing the render window. 

I am adding the scale bar like this:
    _pRenderer->AddActor2D(m_scalarBarActor);


However, when I do this:
    vtkScalarBarActor *mybar = vtkScalarBarActor::New();
    mybar->SetLookupTable(m_scalarBarLUT );
    _pRenderer->AddActor2D(mybar);

I have no issues.

I have also tried adding a basic initialization, but without success:
    vtkContext2DScalarBarActor* m_scalarBarActor =
vtkContext2DScalarBarActor::New();
    m_scalarBarActor->SetLookupTable(m_scalarBarLUT );
    _pRenderer->AddActor2D(m_scalarBarActor);


Any idea on what could be wrong?
Thank you.




--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From cory.quammen at kitware.com  Wed Nov 29 10:07:27 2017
From: cory.quammen at kitware.com (Cory Quammen)
Date: Wed, 29 Nov 2017 10:07:27 -0500
Subject: [vtkusers] Size of labels in vtkScalarBarActor
In-Reply-To: <1511967090568-0.post@n5.nabble.com>
References: <CA+zyc0XcZ-AgX4EdDJ4Nqj09r7ByzwE1aZoFJerxjXdUs91NnA@mail.gmail.com>
 <CAB5Fpx7hpxiacMOUdJ0RcLpVTW2sZ4EmBDF0JLVETA65cy2FsQ@mail.gmail.com>
 <CA+zyc0XoiMymL1AqdzaCsPszd6KfDwfqO3nuCDUz1b5wZWEb2w@mail.gmail.com>
 <CAB5Fpx6=_3VLWgkuFUJUcz4CtpiWt4AeiM087ETec4fYORYwvg@mail.gmail.com>
 <CA+zyc0XmvMnYgec-eXZYEx6ZLcTYTSt3hyz3jOp5=_YzLqGRXQ@mail.gmail.com>
 <1511967090568-0.post@n5.nabble.com>
Message-ID: <CAB5Fpx7M7eWWK=tyjtmOpSnGPWtVnfYR72xvzQtbDjP23t7imA@mail.gmail.com>

If you could provide a stack trace from the crash, that would help
identify what additional initialization you might need to do.

Thanks,
Cory

On Wed, Nov 29, 2017 at 9:51 AM, Miguel <m.nunes at fratoria.com> wrote:
> Hello,
> I am trying to mimic Fernando's work but after adding the scaleBar to the
> renderer, I get a crash when refreshing the render window.
>
> I am adding the scale bar like this:
>     _pRenderer->AddActor2D(m_scalarBarActor);
>
>
> However, when I do this:
>     vtkScalarBarActor *mybar = vtkScalarBarActor::New();
>     mybar->SetLookupTable(m_scalarBarLUT );
>     _pRenderer->AddActor2D(mybar);
>
> I have no issues.
>
> I have also tried adding a basic initialization, but without success:
>     vtkContext2DScalarBarActor* m_scalarBarActor =
> vtkContext2DScalarBarActor::New();
>     m_scalarBarActor->SetLookupTable(m_scalarBarLUT );
>     _pRenderer->AddActor2D(m_scalarBarActor);
>
>
> Any idea on what could be wrong?
> Thank you.
>
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.

From m.nunes at fratoria.com  Wed Nov 29 10:38:11 2017
From: m.nunes at fratoria.com (Miguel)
Date: Wed, 29 Nov 2017 08:38:11 -0700 (MST)
Subject: [vtkusers] Size of labels in vtkScalarBarActor
In-Reply-To: <CAB5Fpx7M7eWWK=tyjtmOpSnGPWtVnfYR72xvzQtbDjP23t7imA@mail.gmail.com>
References: <CA+zyc0XcZ-AgX4EdDJ4Nqj09r7ByzwE1aZoFJerxjXdUs91NnA@mail.gmail.com>
 <CAB5Fpx7hpxiacMOUdJ0RcLpVTW2sZ4EmBDF0JLVETA65cy2FsQ@mail.gmail.com>
 <CA+zyc0XoiMymL1AqdzaCsPszd6KfDwfqO3nuCDUz1b5wZWEb2w@mail.gmail.com>
 <CAB5Fpx6=_3VLWgkuFUJUcz4CtpiWt4AeiM087ETec4fYORYwvg@mail.gmail.com>
 <CA+zyc0XmvMnYgec-eXZYEx6ZLcTYTSt3hyz3jOp5=_YzLqGRXQ@mail.gmail.com>
 <1511967090568-0.post@n5.nabble.com>
 <CAB5Fpx7M7eWWK=tyjtmOpSnGPWtVnfYR72xvzQtbDjP23t7imA@mail.gmail.com>
Message-ID: <1511969891441-0.post@n5.nabble.com>

Hi Cory,
thank you for your quick reply.
Unfortunately I am not able to provide this, as vkt is embedded in a complex
windows system. 

However, I edited the file vtkContext2DScalarBarActor.cxx to be able to
print messages. 
I have found out the crash come from the function /int
vtkContext2DScalarBarActor::RenderOverlay(vtkViewport* viewport)/
when /returnValue = this->ActorDelegate->RenderOverlay(viewport);/ is
called.

I the constructor I see

/ this->ActorDelegate = vtkContextActor::New();
(...)
  vtkContextScene* localScene = vtkContextScene::New();
  this->ActorDelegate->SetScene(localScene);
  localScene->AddItem(this->ScalarBarItem);
  localScene->Delete();

  this->CurrentViewport = NULL;

  this->Axis = vtkAxis::New();
  this->Axis->SetScene(localScene);/


Why is the localScene deleted? Do I have a old version of the code? 

I also printed the viewport size and the values are correct. 

I hope this helps.




--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From cory.quammen at kitware.com  Wed Nov 29 11:08:43 2017
From: cory.quammen at kitware.com (Cory Quammen)
Date: Wed, 29 Nov 2017 11:08:43 -0500
Subject: [vtkusers] Size of labels in vtkScalarBarActor
In-Reply-To: <1511969891441-0.post@n5.nabble.com>
References: <CA+zyc0XcZ-AgX4EdDJ4Nqj09r7ByzwE1aZoFJerxjXdUs91NnA@mail.gmail.com>
 <CAB5Fpx7hpxiacMOUdJ0RcLpVTW2sZ4EmBDF0JLVETA65cy2FsQ@mail.gmail.com>
 <CA+zyc0XoiMymL1AqdzaCsPszd6KfDwfqO3nuCDUz1b5wZWEb2w@mail.gmail.com>
 <CAB5Fpx6=_3VLWgkuFUJUcz4CtpiWt4AeiM087ETec4fYORYwvg@mail.gmail.com>
 <CA+zyc0XmvMnYgec-eXZYEx6ZLcTYTSt3hyz3jOp5=_YzLqGRXQ@mail.gmail.com>
 <1511967090568-0.post@n5.nabble.com>
 <CAB5Fpx7M7eWWK=tyjtmOpSnGPWtVnfYR72xvzQtbDjP23t7imA@mail.gmail.com>
 <1511969891441-0.post@n5.nabble.com>
Message-ID: <CAB5Fpx6frUVQ__a5Dk7S7UcSSGfZK-oNSrNpeewUVXrcMqS22Q@mail.gmail.com>

On Wed, Nov 29, 2017 at 10:38 AM, Miguel <m.nunes at fratoria.com> wrote:
> Hi Cory,
> thank you for your quick reply.
> Unfortunately I am not able to provide this, as vkt is embedded in a complex
> windows system.

Barring even the last few calls of a stack trace, it would be helpful
if you could distill the scalar bar code down to a minimal compilable
program (and provide a CMakeLists.txt file) so I can debug locally.

> However, I edited the file vtkContext2DScalarBarActor.cxx to be able to
> print messages.
> I have found out the crash come from the function /int
> vtkContext2DScalarBarActor::RenderOverlay(vtkViewport* viewport)/
> when /returnValue = this->ActorDelegate->RenderOverlay(viewport);/ is
> called.
>
> I the constructor I see
>
> / this->ActorDelegate = vtkContextActor::New();
> (...)
>   vtkContextScene* localScene = vtkContextScene::New();
>   this->ActorDelegate->SetScene(localScene);
>   localScene->AddItem(this->ScalarBarItem);
>   localScene->Delete();
>
>   this->CurrentViewport = NULL;
>
>   this->Axis = vtkAxis::New();
>   this->Axis->SetScene(localScene);/
>
>
> Why is the localScene deleted? Do I have a old version of the code?

That's a standard VTK-ism. Most VTK objects are reference counted.
When the reference count reaches zero, the object is actually deleted.
Here, ::New() increments the reference count once, SetScence()
increments it again (the ActorDelegate adds a reference to
localScene), so now you have two references. Calling Delete() just
decrements the reference count by 1 because the local scope is done
with the object - it won't actually be deleted until the ActorDelegate
and anything else that references decrements the reference count down
to zero. I don't suspect that is where the problem lies.

Cory

> I also printed the viewport size and the values are correct.
>
> I hope this helps.
>
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.

From jfavre at cscs.ch  Wed Nov 29 11:28:59 2017
From: jfavre at cscs.ch (Favre  Jean)
Date: Wed, 29 Nov 2017 16:28:59 +0000
Subject: [vtkusers] Visualize cell normal vector of polydata
In-Reply-To: <CAB5Fpx6k=OpYxmjsg5nOVD7m6ArYijyi0xYcw9vnOiccUKfK9w@mail.gmail.com>
References: <2017112821184103591617@gmail.com>
 <CAB5Fpx4MGU_DScZahqu2xbraa7WMkTZu3xuFw+_BgN4qTbKc6w@mail.gmail.com>
 <2017112823390974292122@gmail.com>
 <0EB9B6375711A04B820E6B6F5CCA9F685CA28F6C@MBX111.d.ethz.ch>
 <201711291814208696999@gmail.com>,
 <CAB5Fpx6k=OpYxmjsg5nOVD7m6ArYijyi0xYcw9vnOiccUKfK9w@mail.gmail.com>
Message-ID: <0EB9B6375711A04B820E6B6F5CCA9F685CA294E6@MBX111.d.ethz.ch>


May I suggest the use of a vtkGlyph3DMapper, instead of a vtkGlyph3D?

a vtkGlyph3DMapper enables you to set two options:

glypher = vtkGlyph3DMapper();
glypher.MaskingOn();
glypher.SetMaskArray("masks");

This requires your input to have a vtkBitArray scalar field called "masks" which you can set by thresholding on your other field data.

-----------------
Jean/CSCS

From m.nunes at fratoria.com  Wed Nov 29 11:42:30 2017
From: m.nunes at fratoria.com (Miguel)
Date: Wed, 29 Nov 2017 09:42:30 -0700 (MST)
Subject: [vtkusers] Size of labels in vtkScalarBarActor
In-Reply-To: <CAB5Fpx6frUVQ__a5Dk7S7UcSSGfZK-oNSrNpeewUVXrcMqS22Q@mail.gmail.com>
References: <CA+zyc0XcZ-AgX4EdDJ4Nqj09r7ByzwE1aZoFJerxjXdUs91NnA@mail.gmail.com>
 <CAB5Fpx7hpxiacMOUdJ0RcLpVTW2sZ4EmBDF0JLVETA65cy2FsQ@mail.gmail.com>
 <CA+zyc0XoiMymL1AqdzaCsPszd6KfDwfqO3nuCDUz1b5wZWEb2w@mail.gmail.com>
 <CAB5Fpx6=_3VLWgkuFUJUcz4CtpiWt4AeiM087ETec4fYORYwvg@mail.gmail.com>
 <CA+zyc0XmvMnYgec-eXZYEx6ZLcTYTSt3hyz3jOp5=_YzLqGRXQ@mail.gmail.com>
 <1511967090568-0.post@n5.nabble.com>
 <CAB5Fpx7M7eWWK=tyjtmOpSnGPWtVnfYR72xvzQtbDjP23t7imA@mail.gmail.com>
 <1511969891441-0.post@n5.nabble.com>
 <CAB5Fpx6frUVQ__a5Dk7S7UcSSGfZK-oNSrNpeewUVXrcMqS22Q@mail.gmail.com>
Message-ID: <1511973750330-0.post@n5.nabble.com>

Thank you Cory.
Unfortunately I cannot retrieve anything. The only way I have of debuging is
by printing messages.

So, by printing values, what I can say is that the viewport looks like it
has no issues, and that the error comes from:
returnValue = this->ActorDelegate->RenderOverlay(viewport);

I am using VTK 8.0.1 under windows 10. visual studio 2013. 

Best regards





--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From coyarzunlaura at googlemail.com  Wed Nov 29 12:51:10 2017
From: coyarzunlaura at googlemail.com (Cristina Oyarzun)
Date: Wed, 29 Nov 2017 18:51:10 +0100
Subject: [vtkusers] VTK-JS: How to visualize numbers
Message-ID: <CANuPjs2Kgex4ga+zxFUv0pyQuGJjuziOCiSUF5+U2eWQhr03og@mail.gmail.com>

Hello,

I would like to visualize some numbers next to my actors. I saw an example
(Spheres and Labels) where a canvas is created for this purpose. I remember
doing this using vtkFollowers in the past. Is there currently some easy way
to do this with vtk-js? I mean something similar to vtkFollowers or
vtkTextActors?

Thank you!
Cristina
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From sebastien.jourdain at kitware.com  Wed Nov 29 12:59:01 2017
From: sebastien.jourdain at kitware.com (Sebastien Jourdain)
Date: Wed, 29 Nov 2017 10:59:01 -0700
Subject: [vtkusers] VTK-JS: How to visualize numbers
In-Reply-To: <CANuPjs2Kgex4ga+zxFUv0pyQuGJjuziOCiSUF5+U2eWQhr03og@mail.gmail.com>
References: <CANuPjs2Kgex4ga+zxFUv0pyQuGJjuziOCiSUF5+U2eWQhr03og@mail.gmail.com>
Message-ID: <CABObKxe1s1GDUtdwHNPefBzvD3kiGiRvpVoq1q+dh5u=v2-eug@mail.gmail.com>

The example you mention is the right approach for what you are looking for.

The reason why you don't need vtkFollowers+vtkTextActors, is that we have a
2D layer on top of the 3D for which it is trivial to render text that is
always facing the camera. ;-)
And we have a mechanism that can convert a set of location in the 3D world
into the screen space so those label could be printed.

Let us know if you the example is not enough to get you started.

Seb

On Wed, Nov 29, 2017 at 10:51 AM, Cristina Oyarzun via vtkusers <
vtkusers at vtk.org> wrote:

> Hello,
>
> I would like to visualize some numbers next to my actors. I saw an example
> (Spheres and Labels) where a canvas is created for this purpose. I remember
> doing this using vtkFollowers in the past. Is there currently some easy way
> to do this with vtk-js? I mean something similar to vtkFollowers or
> vtkTextActors?
>
> Thank you!
> Cristina
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>
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From hardenbergh at terarecon.com  Wed Nov 29 13:30:01 2017
From: hardenbergh at terarecon.com (Jan Hardenbergh)
Date: Wed, 29 Nov 2017 18:30:01 +0000
Subject: [vtkusers] ANN: vtk.js,
	an Open-Source Toolkit for SciVis on the Web
Message-ID: <MWHPR08MB270195F66761632FB414D87FAC3B0@MWHPR08MB2701.namprd08.prod.outlook.com>

This is awesome!!! Would an AnimationScene work in vtk.js?

P.S. For the volume datasets, a Cardiac LUT would be nice.

YON - Jan C. Hardenbergh, VolumePro SW Eng. Mgr. Terarecon, Inc.

----------------------------------------------------------------------

Message: 1
Date: Tue, 28 Nov 2017 10:12:08 -0700
From: Sebastien Jourdain <sebastien.jourdain at kitware.com>
To: "vtk-developers at vtk.org" <vtk-developers at vtk.org>, vtkusers
	<vtkusers at vtk.org>,  "paraview at paraview.org" <paraview at paraview.org>,
	"paraview-developers at paraview.org" <paraview-developers at paraview.org>
Subject: [vtkusers] ANN: vtk.js, an Open-Source Toolkit for SciVis on
	the Web
Message-ID:
	<CABObKxfzgVj2Wi_s1QbEgDf2SebqzbwoCtvX66DT5+Mng9SdoQ at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

The Kitware team is pleased to announce vtk.js, a WebGL library taking the best of VTK to the Web.
To learn more, click on the link for our blog post.

https://blog.kitware.com/vtk-js-the-visualization-toolkit-on-the-web/

And if you want to follow along the progress of the project, star it on github!

https://github.com/Kitware/vtk-js

Feel free to leave feedback on the mailing list or issue tracker.

Thank you all for making VTK such a great platform for SciViz!

Sebastien

From sebastien.jourdain at kitware.com  Wed Nov 29 14:08:26 2017
From: sebastien.jourdain at kitware.com (Sebastien Jourdain)
Date: Wed, 29 Nov 2017 12:08:26 -0700
Subject: [vtkusers] ANN: vtk.js,
	an Open-Source Toolkit for SciVis on the Web
In-Reply-To: <MWHPR08MB270195F66761632FB414D87FAC3B0@MWHPR08MB2701.namprd08.prod.outlook.com>
References: <MWHPR08MB270195F66761632FB414D87FAC3B0@MWHPR08MB2701.namprd08.prod.outlook.com>
Message-ID: <CABObKxczuF5108TxC4d9URvZt68WDRKhUm=e7EwaNnCekeZD+A@mail.gmail.com>

ArcticViewer can do time animation using vtk.js for both geometry and
volume rendering.

https://kitware.github.io/arctic-viewer/

Some example script can be found here:
https://github.com/Kitware/arctic-viewer/blob/master/scripts/examples/paraview/samples/VTKGeometry-can.py

For volume data export, we don't have an example but could add one easily.

Seb

On Wed, Nov 29, 2017 at 11:30 AM, Jan Hardenbergh <hardenbergh at terarecon.com
> wrote:

> This is awesome!!! Would an AnimationScene work in vtk.js?
>
> P.S. For the volume datasets, a Cardiac LUT would be nice.
>
> YON - Jan C. Hardenbergh, VolumePro SW Eng. Mgr. Terarecon, Inc.
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 28 Nov 2017 10:12:08 -0700
> From: Sebastien Jourdain <sebastien.jourdain at kitware.com>
> To: "vtk-developers at vtk.org" <vtk-developers at vtk.org>, vtkusers
>         <vtkusers at vtk.org>,  "paraview at paraview.org" <
> paraview at paraview.org>,
>         "paraview-developers at paraview.org" <paraview-developers at paraview.
> org>
> Subject: [vtkusers] ANN: vtk.js, an Open-Source Toolkit for SciVis on
>         the Web
> Message-ID:
>         <CABObKxfzgVj2Wi_s1QbEgDf2SebqzbwoCtvX66DT5+
> Mng9SdoQ at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> The Kitware team is pleased to announce vtk.js, a WebGL library taking the
> best of VTK to the Web.
> To learn more, click on the link for our blog post.
>
> https://blog.kitware.com/vtk-js-the-visualization-toolkit-on-the-web/
>
> And if you want to follow along the progress of the project, star it on
> github!
>
> https://github.com/Kitware/vtk-js
>
> Feel free to leave feedback on the mailing list or issue tracker.
>
> Thank you all for making VTK such a great platform for SciViz!
>
> Sebastien
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
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From sebastien.jourdain at kitware.com  Wed Nov 29 14:10:32 2017
From: sebastien.jourdain at kitware.com (Sebastien Jourdain)
Date: Wed, 29 Nov 2017 12:10:32 -0700
Subject: [vtkusers] ANN: vtk.js,
	an Open-Source Toolkit for SciVis on the Web
In-Reply-To: <CABObKxczuF5108TxC4d9URvZt68WDRKhUm=e7EwaNnCekeZD+A@mail.gmail.com>
References: <MWHPR08MB270195F66761632FB414D87FAC3B0@MWHPR08MB2701.namprd08.prod.outlook.com>
 <CABObKxczuF5108TxC4d9URvZt68WDRKhUm=e7EwaNnCekeZD+A@mail.gmail.com>
Message-ID: <CABObKxeOoRYDtUSeoyTG1jWvcgEW=6bgYF-KjoHnr9qB80BV5A@mail.gmail.com>

If you want to add your preset for "Cardiac LUT",
feel free to add it here:
https://github.com/Kitware/vtk-js/blob/master/Sources/Rendering/Core/ColorTransferFunction/ColorMaps.json

On Wed, Nov 29, 2017 at 12:08 PM, Sebastien Jourdain <
sebastien.jourdain at kitware.com> wrote:

> ArcticViewer can do time animation using vtk.js for both geometry and
> volume rendering.
>
> https://kitware.github.io/arctic-viewer/
>
> Some example script can be found here:
> https://github.com/Kitware/arctic-viewer/blob/master/
> scripts/examples/paraview/samples/VTKGeometry-can.py
>
> For volume data export, we don't have an example but could add one easily.
>
> Seb
>
> On Wed, Nov 29, 2017 at 11:30 AM, Jan Hardenbergh <
> hardenbergh at terarecon.com> wrote:
>
>> This is awesome!!! Would an AnimationScene work in vtk.js?
>>
>> P.S. For the volume datasets, a Cardiac LUT would be nice.
>>
>> YON - Jan C. Hardenbergh, VolumePro SW Eng. Mgr. Terarecon, Inc.
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Tue, 28 Nov 2017 10:12:08 -0700
>> From: Sebastien Jourdain <sebastien.jourdain at kitware.com>
>> To: "vtk-developers at vtk.org" <vtk-developers at vtk.org>, vtkusers
>>         <vtkusers at vtk.org>,  "paraview at paraview.org" <
>> paraview at paraview.org>,
>>         "paraview-developers at paraview.org" <paraview-developers at paraview.
>> org>
>> Subject: [vtkusers] ANN: vtk.js, an Open-Source Toolkit for SciVis on
>>         the Web
>> Message-ID:
>>         <CABObKxfzgVj2Wi_s1QbEgDf2SebqzbwoCtvX66DT5+Mng9SdoQ at mail.
>> gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> The Kitware team is pleased to announce vtk.js, a WebGL library taking
>> the best of VTK to the Web.
>> To learn more, click on the link for our blog post.
>>
>> https://blog.kitware.com/vtk-js-the-visualization-toolkit-on-the-web/
>>
>> And if you want to follow along the progress of the project, star it on
>> github!
>>
>> https://github.com/Kitware/vtk-js
>>
>> Feel free to leave feedback on the mailing list or issue tracker.
>>
>> Thank you all for making VTK such a great platform for SciViz!
>>
>> Sebastien
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/vtkusers
>>
>
>
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From hardenbergh at terarecon.com  Wed Nov 29 14:37:08 2017
From: hardenbergh at terarecon.com (Jan Hardenbergh)
Date: Wed, 29 Nov 2017 19:37:08 +0000
Subject: [vtkusers] ANN: vtk.js,
 an Open-Source Toolkit for SciVis on the Web
In-Reply-To: <CABObKxeOoRYDtUSeoyTG1jWvcgEW=6bgYF-KjoHnr9qB80BV5A@mail.gmail.com>
References: <MWHPR08MB270195F66761632FB414D87FAC3B0@MWHPR08MB2701.namprd08.prod.outlook.com>
 <CABObKxczuF5108TxC4d9URvZt68WDRKhUm=e7EwaNnCekeZD+A@mail.gmail.com>
 <CABObKxeOoRYDtUSeoyTG1jWvcgEW=6bgYF-KjoHnr9qB80BV5A@mail.gmail.com>
Message-ID: <MWHPR08MB2701B8DC7D5D0D1B08E4140BAC3B0@MWHPR08MB2701.namprd08.prod.outlook.com>

Seb,

Let?s pretend I?m a dinosaur who has run a vtk demo every couple of years since kitware was founded and Mitsubishi hired them to do a VolumePro500 demo.

Are you saying that the browser would call Python? Or are you saying it would be trivial to port VTKGeometry-can.py to .js?
Also, this a bit opaque: inputFile = '/Users/seb/Downloads/data/can.ex2'
Would this work as well? https://midas3.kitware.com/midas/item/207317

I am assuming that I would copy a bunch of stuff to an examples directory in my webserver and presto-keeno, it would work. Right?

Adding the LUT will go on my aspirational TODO list.

-Jan

From: Sebastien Jourdain [mailto:sebastien.jourdain at kitware.com]
Sent: Wednesday, November 29, 2017 2:11 PM
To: Jan Hardenbergh <hardenbergh at terarecon.com>
Cc: vtkusers at vtk.org
Subject: Re: [vtkusers] ANN: vtk.js, an Open-Source Toolkit for SciVis on the Web

If you want to add your preset for "Cardiac LUT",
feel free to add it here: https://github.com/Kitware/vtk-js/blob/master/Sources/Rendering/Core/ColorTransferFunction/ColorMaps.json

On Wed, Nov 29, 2017 at 12:08 PM, Sebastien Jourdain <sebastien.jourdain at kitware.com<mailto:sebastien.jourdain at kitware.com>> wrote:
ArcticViewer can do time animation using vtk.js for both geometry and volume rendering.

https://kitware.github.io/arctic-viewer/

Some example script can be found here:
https://github.com/Kitware/arctic-viewer/blob/master/scripts/examples/paraview/samples/VTKGeometry-can.py

For volume data export, we don't have an example but could add one easily.

Seb

On Wed, Nov 29, 2017 at 11:30 AM, Jan Hardenbergh <hardenbergh at terarecon.com<mailto:hardenbergh at terarecon.com>> wrote:
This is awesome!!! Would an AnimationScene work in vtk.js?

P.S. For the volume datasets, a Cardiac LUT would be nice.

YON - Jan C. Hardenbergh, VolumePro SW Eng. Mgr. Terarecon, Inc.

----------------------------------------------------------------------

Message: 1
Date: Tue, 28 Nov 2017 10:12:08 -0700
From: Sebastien Jourdain <sebastien.jourdain at kitware.com<mailto:sebastien.jourdain at kitware.com>>
To: "vtk-developers at vtk.org<mailto:vtk-developers at vtk.org>" <vtk-developers at vtk.org<mailto:vtk-developers at vtk.org>>, vtkusers
        <vtkusers at vtk.org<mailto:vtkusers at vtk.org>>,  "paraview at paraview.org<mailto:paraview at paraview.org>" <paraview at paraview.org<mailto:paraview at paraview.org>>,
        "paraview-developers at paraview.org<mailto:paraview-developers at paraview.org>" <paraview-developers at paraview.org<mailto:paraview-developers at paraview.org>>
Subject: [vtkusers] ANN: vtk.js, an Open-Source Toolkit for SciVis on
        the Web
Message-ID:
        <CABObKxfzgVj2Wi_s1QbEgDf2SebqzbwoCtvX66DT5+Mng9SdoQ at mail.gmail.com<mailto:CABObKxfzgVj2Wi_s1QbEgDf2SebqzbwoCtvX66DT5%2BMng9SdoQ at mail.gmail.com>>
Content-Type: text/plain; charset="utf-8"

The Kitware team is pleased to announce vtk.js, a WebGL library taking the best of VTK to the Web.
To learn more, click on the link for our blog post.

https://blog.kitware.com/vtk-js-the-visualization-toolkit-on-the-web/

And if you want to follow along the progress of the project, star it on github!

https://github.com/Kitware/vtk-js

Feel free to leave feedback on the mailing list or issue tracker.

Thank you all for making VTK such a great platform for SciViz!

Sebastien
_______________________________________________
Powered by www.kitware.com<http://www.kitware.com>

Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ

Search the list archives at: http://markmail.org/search/?q=vtkusers

Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/vtkusers


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From skab12 at gmail.com  Wed Nov 29 15:05:40 2017
From: skab12 at gmail.com (Serge K.)
Date: Wed, 29 Nov 2017 15:05:40 -0500
Subject: [vtkusers] visualize DTI(Diffuse tensor iamge) using VTK
Message-ID: <CACydq8ovC6m+cvhw-DKD33NvcVQVPH-MzGmEgB5o8xB4LhuzAw@mail.gmail.com>

Hi,

You can have a look at DIPY project. They use VTK for visualization.

Here some examples :

- http://nipy.org/dipy/examples_built/reconst_dti.html#example-reconst-dti
- http://nipy.org/dipy/examples_built/reconst_csd.html#example-reconst-csd

and the code part :

- https://github.com/nipy/dipy/blob/master/dipy/viz

Feel free to use or extend these tools

Cheers,

Serge K.
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From sebastien.jourdain at kitware.com  Wed Nov 29 15:30:44 2017
From: sebastien.jourdain at kitware.com (Sebastien Jourdain)
Date: Wed, 29 Nov 2017 13:30:44 -0700
Subject: [vtkusers] ANN: vtk.js,
	an Open-Source Toolkit for SciVis on the Web
In-Reply-To: <MWHPR08MB2701B8DC7D5D0D1B08E4140BAC3B0@MWHPR08MB2701.namprd08.prod.outlook.com>
References: <MWHPR08MB270195F66761632FB414D87FAC3B0@MWHPR08MB2701.namprd08.prod.outlook.com>
 <CABObKxczuF5108TxC4d9URvZt68WDRKhUm=e7EwaNnCekeZD+A@mail.gmail.com>
 <CABObKxeOoRYDtUSeoyTG1jWvcgEW=6bgYF-KjoHnr9qB80BV5A@mail.gmail.com>
 <MWHPR08MB2701B8DC7D5D0D1B08E4140BAC3B0@MWHPR08MB2701.namprd08.prod.outlook.com>
Message-ID: <CABObKxc7DX4EFuO7H=-m+B4YuVLS1yKszecRb4EB7K6z8KtcfA@mail.gmail.com>

Sorry, for being light on my initial explanations. I've been playing too
long with all those technologies... ;-)

ArcticViewer is just a viewer of static data.
The Python script is to actually process the data and generate a data
structure that would be easy to serve to a web page.
So it is just pre-processing to generate new files that should be a subset
of the original data.

Then once you load the (newly generated) data in ArcticViewer, you can edit
the lookup table, play the time animation, change the array to color by and
so on...

But it could also be fairly easy to create an animation with vtk.js just by
dealing with the switch of input data on your own in plain JavaScript.
I was just mentioning ArcticViewer as you can easily try it out.

If you want the web browser to drive a VTK/Python backend, you can use
ParaViewWeb for that and Visualizer is a good example of it.
You can learn more about it here:
https://kitware.github.io/paraviewweb/docs/

Hope that clarify some of your questions...

Seb


On Wed, Nov 29, 2017 at 12:37 PM, Jan Hardenbergh <hardenbergh at terarecon.com
> wrote:

> Seb,
>
>
>
> Let?s pretend I?m a dinosaur who has run a vtk demo every couple of years
> since kitware was founded and Mitsubishi hired them to do a VolumePro500
> demo.
>
>
>
> Are you saying that the browser would call Python? Or are you saying it
> would be trivial to port VTKGeometry-can.py to .js?
>
> Also, this a bit opaque: inputFile = '/Users/seb/Downloads/data/can.ex2'
>
> Would this work as well? https://midas3.kitware.com/midas/item/207317
>
>
>
> I am assuming that I would copy a bunch of stuff to an examples directory
> in my webserver and presto-keeno, it would work. Right?
>
>
>
> Adding the LUT will go on my aspirational TODO list.
>
>
>
> -Jan
>
>
>
> *From:* Sebastien Jourdain [mailto:sebastien.jourdain at kitware.com]
> *Sent:* Wednesday, November 29, 2017 2:11 PM
> *To:* Jan Hardenbergh <hardenbergh at terarecon.com>
> *Cc:* vtkusers at vtk.org
> *Subject:* Re: [vtkusers] ANN: vtk.js, an Open-Source Toolkit for SciVis
> on the Web
>
>
>
> If you want to add your preset for "Cardiac LUT",
>
> feel free to add it here: https://github.com/Kitware/vtk-js/blob/master/
> Sources/Rendering/Core/ColorTransferFunction/ColorMaps.json
>
>
>
> On Wed, Nov 29, 2017 at 12:08 PM, Sebastien Jourdain <
> sebastien.jourdain at kitware.com> wrote:
>
> ArcticViewer can do time animation using vtk.js for both geometry and
> volume rendering.
>
>
>
> https://kitware.github.io/arctic-viewer/
>
>
>
> Some example script can be found here:
>
> https://github.com/Kitware/arctic-viewer/blob/master/
> scripts/examples/paraview/samples/VTKGeometry-can.py
>
>
>
> For volume data export, we don't have an example but could add one easily.
>
>
>
> Seb
>
>
>
> On Wed, Nov 29, 2017 at 11:30 AM, Jan Hardenbergh <
> hardenbergh at terarecon.com> wrote:
>
> This is awesome!!! Would an AnimationScene work in vtk.js?
>
> P.S. For the volume datasets, a Cardiac LUT would be nice.
>
> YON - Jan C. Hardenbergh, VolumePro SW Eng. Mgr. Terarecon, Inc.
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 28 Nov 2017 10:12:08 -0700
> From: Sebastien Jourdain <sebastien.jourdain at kitware.com>
> To: "vtk-developers at vtk.org" <vtk-developers at vtk.org>, vtkusers
>         <vtkusers at vtk.org>,  "paraview at paraview.org" <
> paraview at paraview.org>,
>         "paraview-developers at paraview.org" <paraview-developers at paraview.
> org>
> Subject: [vtkusers] ANN: vtk.js, an Open-Source Toolkit for SciVis on
>         the Web
> Message-ID:
>         <CABObKxfzgVj2Wi_s1QbEgDf2SebqzbwoCtvX66DT5+
> Mng9SdoQ at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
>
> The Kitware team is pleased to announce vtk.js, a WebGL library taking the
> best of VTK to the Web.
> To learn more, click on the link for our blog post.
>
> https://blog.kitware.com/vtk-js-the-visualization-toolkit-on-the-web/
>
> And if you want to follow along the progress of the project, star it on
> github!
>
> https://github.com/Kitware/vtk-js
>
> Feel free to leave feedback on the mailing list or issue tracker.
>
> Thank you all for making VTK such a great platform for SciViz!
>
> Sebastien
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
>
>
>
>
>
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From will.schroeder at kitware.com  Wed Nov 29 15:49:04 2017
From: will.schroeder at kitware.com (Will Schroeder)
Date: Wed, 29 Nov 2017 15:49:04 -0500
Subject: [vtkusers] [Paraview-developers] ANN: vtk.js,
 an Open-Source Toolkit for SciVis on the Web
In-Reply-To: <CABObKxfzgVj2Wi_s1QbEgDf2SebqzbwoCtvX66DT5+Mng9SdoQ@mail.gmail.com>
References: <CABObKxfzgVj2Wi_s1QbEgDf2SebqzbwoCtvX66DT5+Mng9SdoQ@mail.gmail.com>
Message-ID: <CAEiDrtU4qkGO-Gy7rqPDzvrTP9DTbuUcRRxUkMk-4JYLxmeeqQ@mail.gmail.com>

Note that vtk.js is a relatively young project. That means if you are
anxious to contribute to an open source community here's a chance to get in
on the ground floor;  we can certainly use your help. Give yourself the
holiday gift of contributing to an OS platform :-)

On Tue, Nov 28, 2017 at 12:12 PM, Sebastien Jourdain <
sebastien.jourdain at kitware.com> wrote:

> The Kitware team is pleased to announce vtk.js, a WebGL library taking the
> best of VTK to the Web.
> To learn more, click on the link for our blog post.
>
> https://blog.kitware.com/vtk-js-the-visualization-toolkit-on-the-web/
>
> And if you want to follow along the progress of the project, star it on
> github!
>
> https://github.com/Kitware/vtk-js
>
> Feel free to leave feedback on the mailing list or issue tracker.
>
> Thank you all for making VTK such a great platform for SciViz!
>
> Sebastien
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Search the list archives at: http://markmail.org/search/?q=
> Paraview-developers
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview-developers
>
>


-- 
William J. Schroeder, PhD
Kitware, Inc. - Building the World's Technical Computing Software
28 Corporate Drive
Clifton Park, NY 12065
will.schroeder at kitware.com
http://www.kitware.com
(518) 881-4902
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From allison.vacanti at kitware.com  Wed Nov 29 16:44:18 2017
From: allison.vacanti at kitware.com (Allie Vacanti)
Date: Wed, 29 Nov 2017 16:44:18 -0500
Subject: [vtkusers] Is anyone using Octree Fractal
	(vtkHyperOctreeFractalSource)?
In-Reply-To: <CA+=e1ovASPb=vDk0n71MR77162+gdgkWZvtr1HDGJg6gwY_BuQ@mail.gmail.com>
References: <CA+=e1ovASPb=vDk0n71MR77162+gdgkWZvtr1HDGJg6gwY_BuQ@mail.gmail.com>
Message-ID: <CA+=e1ot31bL5umQAn9Af_=asmqetCPm8txOMH54tXGY2r6ojDw@mail.gmail.com>

Merge requests are up for this:
VTK: https://gitlab.kitware.com/vtk/vtk/merge_requests/3644
PV: https://gitlab.kitware.com/paraview/paraview/merge_requests/2062

On Tue, Nov 28, 2017 at 3:35 PM, Allie Vacanti <allison.vacanti at kitware.com>
wrote:

> Unless there is a reason not to, we will be deprecating this class soon as
> per https://gitlab.kitware.com/paraview/paraview/issues/17791.
>
> Let me know if you'd like it to stay.
>
> Allie
>
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From satwik.k8 at gmail.com  Thu Nov 30 00:29:43 2017
From: satwik.k8 at gmail.com (Satwik)
Date: Wed, 29 Nov 2017 22:29:43 -0700 (MST)
Subject: [vtkusers] CT Gantry Tilt correction
In-Reply-To: <CANwS1=Gc9jQuqFL0kQV_+mkwqzX4nXMMunA66NCPRJSki7oWtQ@mail.gmail.com>
References: <1511763162567-0.post@n5.nabble.com>
 <CANwS1=FwaGK1Og_JwAOgr70mJw+_=DTxhQHR+MtkAhkGQDXwJg@mail.gmail.com>
 <CANwS1=HfHda=XbWsh2A_f0y2OHk3hEcvZ17S+SHbYphGmkhnjQ@mail.gmail.com>
 <CANwS1=F3FdhTvhfnbVKxeVO4xk=+OJHnHgoddZP6XS0hJ=FeUA@mail.gmail.com>
 <CAPPKgL2+CkfR_aFf6uY=QZb7tipYma5uwTE+qwaFfVWkzRjSTA@mail.gmail.com>
 <CAPPKgL2GcDNe2a7kc4ufvRAWXjZyYJiL2gmu8Yj1eVmZ3bgsrg@mail.gmail.com>
 <CANwS1=F-eK4=m3NkJ4e5Tn6Y=coYEPUDGUmG5AaGWUYdfMuWZw@mail.gmail.com>
 <CAPPKgL0iW==N47qejWkZ6myerFsZFn6jP06LKBF0snQHANpzhg@mail.gmail.com>
 <CANwS1=Gc9jQuqFL0kQV_+mkwqzX4nXMMunA66NCPRJSki7oWtQ@mail.gmail.com>
Message-ID: <1512019783167-0.post@n5.nabble.com>

Hi,

Dimensions of my volume is (512, 512, 144).

///My Code///
vtkDICOMCTRectifier* m_rectify = vtkDICOMCTRectifier::New();
m_rectify->SetEnableSMP(true);
m_rectify->SetVolumeMatrix(d->m_initOrient); //passing orientation matrix
m_rectify->SetInputData(d->m_imageData); //passing image data
m_rectify->Update(); 

Regards,
Satwik K.



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From david.gobbi at gmail.com  Thu Nov 30 09:01:15 2017
From: david.gobbi at gmail.com (David Gobbi)
Date: Thu, 30 Nov 2017 07:01:15 -0700
Subject: [vtkusers] CT Gantry Tilt correction
In-Reply-To: <1512019783167-0.post@n5.nabble.com>
References: <1511763162567-0.post@n5.nabble.com>
 <CANwS1=FwaGK1Og_JwAOgr70mJw+_=DTxhQHR+MtkAhkGQDXwJg@mail.gmail.com>
 <CANwS1=HfHda=XbWsh2A_f0y2OHk3hEcvZ17S+SHbYphGmkhnjQ@mail.gmail.com>
 <CANwS1=F3FdhTvhfnbVKxeVO4xk=+OJHnHgoddZP6XS0hJ=FeUA@mail.gmail.com>
 <CAPPKgL2+CkfR_aFf6uY=QZb7tipYma5uwTE+qwaFfVWkzRjSTA@mail.gmail.com>
 <CAPPKgL2GcDNe2a7kc4ufvRAWXjZyYJiL2gmu8Yj1eVmZ3bgsrg@mail.gmail.com>
 <CANwS1=F-eK4=m3NkJ4e5Tn6Y=coYEPUDGUmG5AaGWUYdfMuWZw@mail.gmail.com>
 <CAPPKgL0iW==N47qejWkZ6myerFsZFn6jP06LKBF0snQHANpzhg@mail.gmail.com>
 <CANwS1=Gc9jQuqFL0kQV_+mkwqzX4nXMMunA66NCPRJSki7oWtQ@mail.gmail.com>
 <1512019783167-0.post@n5.nabble.com>
Message-ID: <CANwS1=GLLPe4_r+punRv4V3w9jC8=PB8ALgsRKNanse5zH+8kw@mail.gmail.com>

Hi Satwik,

I tested a 512x512x144 volume on my laptop, and it took 15 seconds.
So, no, that's not very fast.  The class uses a windowed sinc interpolator,
which is computationally expensive.  I could add an option to use linear
interpolation.  With linear interpolation it only takes 1 second.

 - David


On Wed, Nov 29, 2017 at 10:29 PM, Satwik <satwik.k8 at gmail.com> wrote:

> Hi,
>
> Dimensions of my volume is (512, 512, 144).
>
> ///My Code///
> vtkDICOMCTRectifier* m_rectify = vtkDICOMCTRectifier::New();
> m_rectify->SetEnableSMP(true);
> m_rectify->SetVolumeMatrix(d->m_initOrient); //passing orientation matrix
> m_rectify->SetInputData(d->m_imageData); //passing image data
> m_rectify->Update();
>
> Regards,
> Satwik K.
>
>
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From charles.kind at bristol.ac.uk  Thu Nov 30 09:41:53 2017
From: charles.kind at bristol.ac.uk (Charles Kind)
Date: Thu, 30 Nov 2017 14:41:53 +0000
Subject: [vtkusers] Translate all VTK glyphs individually in large dataset
Message-ID: <HE1PR06MB3100DC07AE28C5FBCB89D11CDF380@HE1PR06MB3100.eurprd06.prod.outlook.com>

I am imaging unit 3vector data on a 2d grid of points. The vectors are cartesian. I want to display these vectors as 3d arrows centered with the mid point of the arrows total length on the plane. My idea was to create another matrix of translations, equal to -(vector/2), and then move the glyphs (or change each vector origin or whatever would work)! I therefore wanted to apply these new vectors pointwise as translations to the glyphs. I have failed and need help.

The translation needs to preserve the magnitude of the vector. Are there perhaps other ways of doing this. I note that Mayavi2 can do this with a check button but does not have the other functionality I need.

I should mention that I have only started using Python and VTK this week so please point out any idiocy in the code. Working code:

import vtk
import math
import sys #Just to break flow

# The source file
file_name = "Stable.vts"

# Read the source file.
reader = vtk.vtkXMLStructuredGridReader()
reader.SetFileName(file_name)
reader.Update()
output = reader.GetOutput()
numPoints = output.GetNumberOfPoints()
dimensions = output.GetDimensions()

#Tuple to hold spherical polar coords
mpolar = vtk.vtkFloatArray()
mpolar.SetNumberOfTuples(numPoints)
mpolar.SetNumberOfComponents(3)
mpolar.SetNumberOfValues(3*numPoints)
mpolar.SetName("mpolar")

#Tuple to hold translations
mtrans = vtk.vtkFloatArray()
mtrans.SetNumberOfTuples(numPoints)
mtrans.SetNumberOfComponents(3)
mtrans.SetNumberOfValues(3*numPoints)
mtrans.SetName("mtrans")

#Tuple copy of cartesian data
mxyz = vtk.vtkFloatArray()
mxyz = output.GetPointData().GetAbstractArray(0)
mxyz.SetName("mxyz")

#Loop through input data and convert to spherical polar
#Also set points equal to input points
#Also create vector transform for each vector
for x in range(numPoints):
    azi = math.atan2(output.GetPointData().GetAbstractArray(0).GetTuple(x)[0],output.GetPointData().GetAbstractArray(0).GetTuple(x)[1])
    pol = math.acos(output.GetPointData().GetAbstractArray(0).GetTuple(x)[2])
    rad = 1
    mpolar.SetTuple3(x, azi, pol, rad)
    mtrans.SetTuple3(x, -output.GetPointData().GetAbstractArray(0).GetTuple(x)[0]/2, \
        -output.GetPointData().GetAbstractArray(0).GetTuple(x)[1]/2, \
        -output.GetPointData().GetAbstractArray(0).GetTuple(x)[2]/2)

#Define new structured grid
skrGrid = vtk.vtkStructuredGrid()
skrGrid.SetDimensions(dimensions)
skrGrid.SetPoints(output.GetPoints())
skrGrid.GetPointData().AddArray(mpolar)
skrGrid.GetPointData().AddArray(mxyz)
skrGrid.GetPointData().AddArray(mtrans)

#Write new structured grid
#writer = vtk.vtkXMLStructuredGridWriter()
#writer.SetFileName("skrGrid.vts")
#writer.SetInputData(skrGrid)
#writer.Write()

#Subsample grid
subs = 11
extract = vtk.vtkExtractGrid()
extract.SetInputData(skrGrid)
extract.SetSampleRate(subs, subs, 1)
extract.Update()
#extract.IncludeBoundaryOn() #Get boundary even if not sampled

#Cast data into PolyData format for Glyphs
pd = vtk.vtkPolyData()
pd.SetPoints(extract.GetOutput().GetPoints())
pd.GetPointData().SetVectors(extract.GetOutput().GetPointData().GetAbstractArray(1))

arrowSource = vtk.vtkArrowSource()

glyph3D = vtk.vtkGlyph3D()
glyph3D.SetSourceConnection(arrowSource.GetOutputPort())
glyph3D.SetVectorModeToUseVector()
glyph3D.SetInputData(pd)
glyph3D.SetScaleFactor(1e-07)
glyph3D.Update()

# Create a mapper and actor
mapper = vtk.vtkPolyDataMapper()
mapper.SetInputConnection(glyph3D.GetOutputPort())

actor = vtk.vtkActor()
actor.SetMapper(mapper)

# Visualize
camera = vtk.vtkCamera()
camera.SetPosition(5e-07, -15e-07, 1e-06)
camera.SetFocalPoint(5e-07, 5e-07, 0)

# Create a renderer, render window, and interactor
renderer = vtk.vtkRenderer()
renderer.SetActiveCamera(camera)

renderWindow = vtk.vtkRenderWindow()
renderWindow.AddRenderer(renderer)
renderWindowInteractor = vtk.vtkRenderWindowInteractor()
renderWindowInteractor.SetRenderWindow(renderWindow)

# Add the actor to the scene
renderer.AddActor(actor)
renderer.SetBackground(1, 1, 1)  # Background color white
renderer.ResetCameraClippingRange() # Call because without it you need window input to make render display!

# enable user interface interactor
# Render and interact
renderWindow.SetSize(800,600)
renderWindowInteractor.Initialize()
renderWindow.Render()
renderWindowInteractor.Start()

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From satwik.k8 at gmail.com  Thu Nov 30 10:24:32 2017
From: satwik.k8 at gmail.com (satwik k)
Date: Thu, 30 Nov 2017 20:54:32 +0530
Subject: [vtkusers] CT Gantry Tilt correction
In-Reply-To: <CANwS1=GLLPe4_r+punRv4V3w9jC8=PB8ALgsRKNanse5zH+8kw@mail.gmail.com>
References: <1511763162567-0.post@n5.nabble.com>
 <CANwS1=FwaGK1Og_JwAOgr70mJw+_=DTxhQHR+MtkAhkGQDXwJg@mail.gmail.com>
 <CANwS1=HfHda=XbWsh2A_f0y2OHk3hEcvZ17S+SHbYphGmkhnjQ@mail.gmail.com>
 <CANwS1=F3FdhTvhfnbVKxeVO4xk=+OJHnHgoddZP6XS0hJ=FeUA@mail.gmail.com>
 <CAPPKgL2+CkfR_aFf6uY=QZb7tipYma5uwTE+qwaFfVWkzRjSTA@mail.gmail.com>
 <CAPPKgL2GcDNe2a7kc4ufvRAWXjZyYJiL2gmu8Yj1eVmZ3bgsrg@mail.gmail.com>
 <CANwS1=F-eK4=m3NkJ4e5Tn6Y=coYEPUDGUmG5AaGWUYdfMuWZw@mail.gmail.com>
 <CAPPKgL0iW==N47qejWkZ6myerFsZFn6jP06LKBF0snQHANpzhg@mail.gmail.com>
 <CANwS1=Gc9jQuqFL0kQV_+mkwqzX4nXMMunA66NCPRJSki7oWtQ@mail.gmail.com>
 <1512019783167-0.post@n5.nabble.com>
 <CANwS1=GLLPe4_r+punRv4V3w9jC8=PB8ALgsRKNanse5zH+8kw@mail.gmail.com>
Message-ID: <CAPPKgL1YNYipJKX+k6URVw3X33_oOzQOmOx56eFPSGZhKjVsJQ@mail.gmail.com>

Last time when I used this API.. By mistake added in loop.. so it was
taking more time... But now I moved it some where else method.. Now it is
taking around 10sec... My doubt is, for 144 images.. it is taking this much
extra time.. wht if have 1000images..?

will it take same time or more?


Regards,
Satwik k

On Nov 30, 2017 19:31, "David Gobbi" <david.gobbi at gmail.com> wrote:

> Hi Satwik,
>
> I tested a 512x512x144 volume on my laptop, and it took 15 seconds.
> So, no, that's not very fast.  The class uses a windowed sinc interpolator,
> which is computationally expensive.  I could add an option to use linear
> interpolation.  With linear interpolation it only takes 1 second.
>
>  - David
>
>
> On Wed, Nov 29, 2017 at 10:29 PM, Satwik <satwik.k8 at gmail.com> wrote:
>
>> Hi,
>>
>> Dimensions of my volume is (512, 512, 144).
>>
>> ///My Code///
>> vtkDICOMCTRectifier* m_rectify = vtkDICOMCTRectifier::New();
>> m_rectify->SetEnableSMP(true);
>> m_rectify->SetVolumeMatrix(d->m_initOrient); //passing orientation matrix
>> m_rectify->SetInputData(d->m_imageData); //passing image data
>> m_rectify->Update();
>>
>> Regards,
>> Satwik K.
>>
>>
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From david.gobbi at gmail.com  Thu Nov 30 12:08:59 2017
From: david.gobbi at gmail.com (David Gobbi)
Date: Thu, 30 Nov 2017 10:08:59 -0700
Subject: [vtkusers] CT Gantry Tilt correction
In-Reply-To: <CAPPKgL1YNYipJKX+k6URVw3X33_oOzQOmOx56eFPSGZhKjVsJQ@mail.gmail.com>
References: <1511763162567-0.post@n5.nabble.com>
 <CANwS1=FwaGK1Og_JwAOgr70mJw+_=DTxhQHR+MtkAhkGQDXwJg@mail.gmail.com>
 <CANwS1=HfHda=XbWsh2A_f0y2OHk3hEcvZ17S+SHbYphGmkhnjQ@mail.gmail.com>
 <CANwS1=F3FdhTvhfnbVKxeVO4xk=+OJHnHgoddZP6XS0hJ=FeUA@mail.gmail.com>
 <CAPPKgL2+CkfR_aFf6uY=QZb7tipYma5uwTE+qwaFfVWkzRjSTA@mail.gmail.com>
 <CAPPKgL2GcDNe2a7kc4ufvRAWXjZyYJiL2gmu8Yj1eVmZ3bgsrg@mail.gmail.com>
 <CANwS1=F-eK4=m3NkJ4e5Tn6Y=coYEPUDGUmG5AaGWUYdfMuWZw@mail.gmail.com>
 <CAPPKgL0iW==N47qejWkZ6myerFsZFn6jP06LKBF0snQHANpzhg@mail.gmail.com>
 <CANwS1=Gc9jQuqFL0kQV_+mkwqzX4nXMMunA66NCPRJSki7oWtQ@mail.gmail.com>
 <1512019783167-0.post@n5.nabble.com>
 <CANwS1=GLLPe4_r+punRv4V3w9jC8=PB8ALgsRKNanse5zH+8kw@mail.gmail.com>
 <CAPPKgL1YNYipJKX+k6URVw3X33_oOzQOmOx56eFPSGZhKjVsJQ@mail.gmail.com>
Message-ID: <CANwS1=Fnt86UHK_UBZwrNUXJJcnm7NHynzUKTd+N0MWbqETAow@mail.gmail.com>

The time will be proportional to the number of slices in the volume.

I've pushed a change to github so that you can call the following method to
speed things up:

  rectify->SetInterpolationModeToLinear();

Linear interpolation will be at least 10 times faster than sinc
interpolation.
Just grab the latest master branch and this method will be available.

When I have some time, I'll dig into the sinc interpolation code to speed
it up.
Right now it's just using vtkImageReslice and a 3D sinc kernel, but CT
rectification really only needs a one-dimensional kernel.

 - David



On Thu, Nov 30, 2017 at 8:24 AM, satwik k <satwik.k8 at gmail.com> wrote:

> Last time when I used this API.. By mistake added in loop.. so it was
> taking more time... But now I moved it some where else method.. Now it is
> taking around 10sec... My doubt is, for 144 images.. it is taking this much
> extra time.. wht if have 1000images..?
>
> will it take same time or more?
>
>
> Regards,
> Satwik k
>
> On Nov 30, 2017 19:31, "David Gobbi" <david.gobbi at gmail.com> wrote:
>
>> Hi Satwik,
>>
>> I tested a 512x512x144 volume on my laptop, and it took 15 seconds.
>> So, no, that's not very fast.  The class uses a windowed sinc
>> interpolator,
>> which is computationally expensive.  I could add an option to use linear
>> interpolation.  With linear interpolation it only takes 1 second.
>>
>>  - David
>>
>>
>> On Wed, Nov 29, 2017 at 10:29 PM, Satwik <satwik.k8 at gmail.com> wrote:
>>
>>> Hi,
>>>
>>> Dimensions of my volume is (512, 512, 144).
>>>
>>> ///My Code///
>>> vtkDICOMCTRectifier* m_rectify = vtkDICOMCTRectifier::New();
>>> m_rectify->SetEnableSMP(true);
>>> m_rectify->SetVolumeMatrix(d->m_initOrient); //passing orientation
>>> matrix
>>> m_rectify->SetInputData(d->m_imageData); //passing image data
>>> m_rectify->Update();
>>>
>>> Regards,
>>> Satwik K.
>>>
>>>
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