Hi AddOil,<div><br></div><div>For going to window coords to 3D data coords, you can use vtkCellPicker.</div><div><br></div><div> David</div><div><br><br><div class="gmail_quote">On Thu, Aug 19, 2010 at 7:24 AM, AddOil <span dir="ltr"><<a href="mailto:qiang.meng@gmail.com">qiang.meng@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><br>
Dear all,<br>
<br>
Are there any functions in VTK which similar to gluUnproject() in OpenGL?<br>
<br>
My input are 2D window coordinates and a z value. I want to know the point's<br>
coordinates in 3D space. What should I do?<br>
<br>
Thanks a lot!<br>
<br>
Regards,<br>
AddOil<br>
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