[vtkusers] 3D Volume from 2D parallel slices

[Olivier Saut]

Hi all,

I am writing mathematical models for cancer growth. The computations are 
based on cartesian grids, so I am dealing with 3D structured grids. The 
data I am trying to use comes from DICOM RT structs. After reading them 
with GDCM2, I have a vtkPolyData containing 2D contours on parallel 
slices (as shown in the attached pictures). I am trying to reconstruct 
the full 3D volume of the tumor as a binary mask defined on a cartesian 
grid.

The following example 
http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/PolyDataToImageData to 
construct a volume from the contours does not work in my case (the 
contour is not closed). Is there a way to construct the volume using 
VTK, or should I look for more specialized toolkits.

Thanks a lot !

                                      - Olivier

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