[vtkusers] Extract space between meshes

[kenichiro yoshimi]

Hi,

Unfortunately, there is not a filter for 3D constrained Delaunay
triangulation in VTK to realize you want. In VTK an alternative method
to extract a sandwiched space is to use vtkClipDataSet or
vtkTableBasedClipDataSet
to clip a convex volume got by applying vtkDelaunay3D to two closed
surface meshes. I really try this method in your case of two
vtkSphereSources and this works (see attachment), but I feel it hard
to solve this problem in general. I hope it will help you.

Thanks

2017-05-16 17:13 GMT+09:00 Maximilian Weiherer <weiherer.maximilian at gmx.de>:
> Dear all,
>
> is it possible to extract the space between two closed and triangulated
> meshes using VTK? Is there a way to get this space as a point cloud or
> something similar?
> For example, consider two vtkSphereSource meshes with different radii where
> the sphere with the bigger radius contains the sphere with the smaller one.
> What I am now trying to get is the space between these two spheres.
>
> Any suggestions would be appreciated.
>
> Best regards,
> Maximilian
>
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