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<font size="2">Greg, <br>
<br>
I managed to run the ImagePlaneWidget example found on-line, but that is not offering more functionality than what FSL provides ( it slices data along the sides of the box ( so, only 3 directions, not an arbitrary cutting plane ), and it gives the coordinates
of points in any of the three slices as well as the integer value at that location ).
<br>
<br>
I am not pursuing this anymore at present, but i am trying to see what use i can make of events and handling them ( like clicking various keys and making a little 'probe' move in space and report its coordinates ).<br>
<br>
I also got a reply to a question about that from Jorge Perez ( see "location of movable component" question posted last week ).<br>
<br>
Silviu <br>
<br>
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<div style="direction: ltr;" id="divRpF800768"><font color="#000000" face="Tahoma" size="2"><b>From:</b> greg aiken [gregaiken@hotmail.com]<br>
<b>Sent:</b> Tuesday, December 17, 2013 9:32 AM<br>
<b>To:</b> Podariu, Silviu<br>
<b>Subject:</b> RE: [vtkusers] coordinates of point in renderer window<br>
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<div dir="ltr">did you ever figure out how to do this.
<div>if so, i was wondering if i could ask you a few questions...</div>
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<div>greg<br>
<br>
<div>
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From: spodariu@unmc.edu<br>
To: vtkusers@vtk.org<br>
Date: Wed, 13 Nov 2013 20:37:36 +0000<br>
Subject: [vtkusers] coordinates of point in renderer window<br>
<br>
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<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt">Hello,<br>
<br>
I am an older but still elementary user of vtk. I found among the examples<br>
a useful one with the vtkRenderer which i could adjust to my needs to add<br>
a few 3D volumes ( each broken in 2D slices ) using a vtkVolume16Reader <br>
and the vtkContourFilter to generate an iso-surface to be shown in the <br>
rendering window for each volume. Additionally, i include sometimes other <br>
standard shapes ( usually spheres, to indicate some particular points, or<br>
different default shapes ). <br>
<br>
The problem i am facing now is the following. When i view these volumes in<br>
a viewer like FSLView, i can get the FSL coordinates of a certain voxel i <br>
am singling out by placing the cross-bar on it ( actually these are the NIFTI <br>
format coordinates, different from the VTK volume coordinates, but this is <br>
less important ) and i would very much like to be able to do a similar thing <br>
in the VTK renderer, i.e. to somehow single out a point and get a visual <br>
display somewhere ( could be in the terminal from which i am launching the <br>
renderer, or anywhere i can see it ) of the VTK coordinates of that point, so <br>
i could connect better the visual info the two displays provide... <br>
<br>
Is there a not too difficult, :), solution to my problem anybody is aware of?<br>
<br>
Thank you,<br>
Silviu<br>
<br>
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