[vtkusers] Are there any functions which similar to gluUnproject() in OpenGL?

[David Gobbi]

Hi AddOil,

For going to window coords to 3D data coords, you can use vtkCellPicker.

   David


On Thu, Aug 19, 2010 at 7:24 AM, AddOil <qiang.meng at gmail.com> wrote:

>
> Dear all,
>
> Are there any functions in VTK which similar to gluUnproject() in OpenGL?
>
> My input are 2D window coordinates and a z value. I want to know the
> point's
> coordinates in 3D space. What should I do?
>
> Thanks a lot!
>
> Regards,
> AddOil
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