[vtkusers] how to convert from viewport x, y mouse coordinates to data points in my polydata dataset?

David E DeMarle dave.demarle at kitware.com
Tue Mar 3 11:48:27 EST 2009

Use vtkWorldPointPicker.

Given the X, Y it asks the RenderWindow what the Z is. Given all three
it then asks the Renderer to convert that to the world coordinate.

On Tue, Mar 3, 2009 at 11:37 AM, Justin Giles <jtgiles at gmail.com> wrote:
> Anyone have any insight on how to convert x,y mouse coordinates to find the
> point being hovered over or picked in a polydata dataset?
> Thanks,
> Justin
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David E DeMarle
Kitware, Inc.
R&D Engineer
28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x109

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