[vtkusers] Creating a 3D ROI

[A. Burak Yoldemir]

Hello all,

I created an application with sagittal, axial and coronal 2D viewers, and an
additional 3D viewer. Now, I want the user to be able to choose a number of
points on one of the 2D viewers to create a 3D ROI. The ROI will have a
constant value on the third dimension.  Actually, what I need is a
vtkPolygon object with a constant third dimension. After the ROI is created,
I will query whether some points lie in this ROI or not, similar to
PointInPolygon function of vtkPolygon class. Any pointers how to perform
this operation on 3D?

Thanks in advance,

Burak
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