<DIV><BR><BR><B><I>Goodwin Lawlor <goodwin.lawlor@ucd.ie></I></B> a écrit :
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<DIV><FONT face=Arial size=2>Hi Isabelle,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>A couple of things...</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>- you should use vtkImageViewer2... it uses vtkImageActor; or use the exact classes in the code below</FONT></DIV>
<DIV><STRONG>What do you mean by that: do I have to choose between using vtkImageViewer2 and implementing code like I did below?</STRONG></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>- you have to set the renWin to the same size as your image dimensions</FONT></DIV>
<DIV><STRONG>Actually, I would like to do the contrary: that is to say, to set the image dimensions to the same size as my renWin. Indeed, the image that I have to display is about 1552*128 (because of different pixel size according to directions), and I would like to display it in a frame of my MFC interface.</STRONG></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>- you have to set the camera's parallel scale to numRows*0.5</FONT></DIV>
<DIV><STRONG>Ok. I forgot to multipky by numRows the scale factor. This could explain my black image. Thanks</STRONG></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Goodwin</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=renauisa@yahoo.fr href="mailto:renauisa@yahoo.fr">Renaud Isabelle</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=goodwin.lawlor@ucd.ie href="mailto:goodwin.lawlor@ucd.ie">Goodwin Lawlor</A> ; <A title=vtkusers@public.kitware.com href="mailto:vtkusers@public.kitware.com">vtkusers@public.kitware.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, May 25, 2005 4:29 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [vtkusers] Re: stretch an image to fit in a window</DIV>
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<DIV>
<DIV> Hi,</DIV>
<DIV> </DIV>
<DIV>Sorry to bother you again. </DIV>
<DIV> </DIV>
<DIV>I tried what you indicated me to scale my image into a window I passed.</DIV>
<DIV> </DIV>
<DIV><STRONG>I have no error at compilation. However, my image is not scaled at execution. </STRONG></DIV>
<DIV> </DIV>
<DIV>Is there any fault in this code:</DIV>
<DIV> </DIV>
<DIV>viewer->SetInput(reader->GetOutput());</DIV>
<DIV> </DIV>
<DIV> <STRONG>vtkRenderer* ren1 = viewer->GetRenderer();<BR> ren1->GetActiveCamera()->ParallelProjectionOn(); <BR>ren1->GetActiveCamera()->SetParallelScale(0.5);</STRONG></DIV>
<DIV> </DIV>
<DIV> //display the image in the frame<BR> viewer->SetParentId(this->m_hWnd);</DIV>
<DIV> </DIV>
<DIV> //execute<BR> viewer->Render(); </DIV>
<DIV> </DIV>
<DIV>thanks in advance, </DIV>
<DIV> </DIV>
<DIV>Isabelle<BR><BR><BR><B><I>Goodwin Lawlor <goodwin.lawlor@ucd.ie></I></B> a écrit:</DIV>
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Hi Isabelle,<BR><BR>Have a look at this example:<BR><BR>http://www.bioengineering-research.com/vtk/vhpreader.tcl<BR><BR>or<BR><BR>http://www.bioengineering-research.com/vtk/BackgroundImage.tcl<BR><BR><BR>here's the bit you need: (app is an image; numCol and numRow are the image<BR>dims)<BR><BR>vtkImageActor ia<BR>ia SetInput [app GetOutput]<BR>ia InterpolateOff<BR>vtkRenderer ren1<BR>ren1 AddActor ia<BR>ren1 SetBackground 1 1 1<BR>vtkRenderWindow renWin<BR>renWin AddRenderer ren1<BR>renWin SetSize [expr $numCol / 4] [expr $numRow / 4]<BR>vtkInteractorStyleImage istyle<BR>vtkRenderWindowInteractor iren<BR>iren SetRenderWindow renWin<BR>iren SetInteractorStyle istyle<BR>[ren1 GetActiveCamera] ParallelProjectionOn<BR>#fit the image to the render window<BR>[ren1 GetActiveCamera] SetParallelScale [expr $numRow / 2]<BR>renWin Render<BR><BR><BR>hth<BR><BR>Goodwin<BR><BR><BR>"Renaud !
Isabelle" <RENAUISA@YAHOO.FR>wrote in message<BR>news:20050525115733.8984.qmail@web26108.mail.ukl.yahoo.com...<BR>Hi everyone,<BR><BR>I made a 2D image displayed in a window by using<BR>vtkImageViewer->SetParentId(this->m_hWnd). It works well, but my image is<BR>still displayed with its own dimensions. What I would like to do is find a<BR>way to display it in order to fit the dimensions of my window, something<BR>which could stretch my image.<BR><BR>Could someone suggest me something? I am not sure if it is a VTK or ITK<BR>problem.<BR><BR>By the way, what is the difference between vtkImageViewer and<BR>vtkImageViewer2?<BR><BR>Thanks in advance,<BR><BR>Isabelle<BR><BR><BR>Découvrez le nouveau Yahoo! Mail : 1 Go d'espace de stockage pour vos mails,<BR>photos et vidéos !<BR>Créez votre Yahoo! Mail<BR><BR><BR><BR>_______________________________________________<BR>This is the private VTK discussion list.<BR>Please keep messages on-topic. Check the FAQ
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