[vtkusers] rubber band selection

[David E DeMarle]

That feature request comes up pretty often but I don't think anyone has
implemented it in VTK yet. My advice is that one could do it one of two
ways:
1) add code to vtkHardwareSelector to add a mask over the rectangular
selected pixel array where the class reads the rendered pixels to determine
what was hit.
2) Render the included shape into the stencil buffer and enable stencil
tests before the hardware selector does its identity render passes.

David E DeMarle
Kitware, Inc.
R&D Engineer
28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x109


On Sun, Mar 20, 2011 at 4:01 PM, Luca Penasa <luca.penasa at gmail.com> wrote:

> Does anybody know if there is a simple way to select points inside a
> free-hand drawed polygon?
> I mean to draw a polygon on the screen and obtaining points that should
> be considered as "internal points"??
>
>
> thank you!
>
>
>
> --
> ---------------------------
> Luca Penasa
> Student at Geosciences Dpt.
> University of Padua (IT)
> luca.penasa at email.it
> ---------------------------
>
>
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