How can Make 3D & 2D Countor from DICOM(RTStrucure) file?

[lassoan (Andras Lasso)]

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Convert 3D contour point cloud to binary voxel map

I am writing a small C++ program, which contains: a voxel grid (nX * nY * nZ) a voxel (i,j,k) to 3D point (x,y,z) conversion matrix an array of 3D points (x,y,z) defining a closed surface As I am new to VTK, I was looking for help to see what would be the most efficient / shortest way to compute a boolean 3D matrix that tells me which points of the 3D voxel grid are inside the contour, and which ones are not. I would prefer not to use external batch-processes, just C++ API libraries like VTK …