[vtkusers] Get all integer points inside polydata.

[superzz]

Hello

Given a polydata, is there a quick way to get all points with integer x,y,z
coordinate inside it? I know empolying vtkOBBTree with the following code
can do this. But it runs toooooo slow.

for (int x = 0 ; x < maxX; ++ x){
  for (int y = 0 ; y < maxY; ++ y){
    for (int z = 0 ; z < maxZ; ++ z){
       obbTree.InsideOrOutside(new double[] { x, y, z });
    }
  }
}

Thanks

superZZ
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