[vtkusers] Extract space between meshes

kenichiro yoshimi rccm.kyoshimi at gmail.com
Thu May 18 06:28:59 EDT 2017


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
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.


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
> _______________________________________________
> Powered by www.kitware.com
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
> Search the list archives at: http://markmail.org/search/?q=vtkusers
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/vtkusers
-------------- next part --------------
A non-text attachment was scrubbed...
Name: twoSpheresSpace.png
Type: image/png
Size: 52751 bytes
Desc: not available
URL: <http://public.kitware.com/pipermail/vtkusers/attachments/20170518/d053366b/attachment.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: ClipSpheresVolume.tar.gz
Type: application/x-gzip
Size: 1096 bytes
Desc: not available
URL: <http://public.kitware.com/pipermail/vtkusers/attachments/20170518/d053366b/attachment.bin>

More information about the vtkusers mailing list