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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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<br>
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