[vtkusers] closed meshes from vtkDiscreteMarchingCubes?

[Dominik Szczerba]

lynx.abraxas at freenet.de wrote:
> On 16/08/09 09:41:46, Dominik Szczerba wrote:
>> You can of course close the holes with a filter, but you can also pad
>> the image to be contoured to avoid their formation.
> 
> Padding,  great idea! vtkImageConstantPad is the one to use for that? I assume
> an extention by one voxel at each side is enough?
> Can I be sure then that any  mesh  from  vtkDiscreteMarchingCubes  of  only  a
> single label is a manifold on its own and suitable for vtkMassProperties?

No. As I recently discovered, in some cases you can get a series of 
geometrically continuous but topologically disconnected regions (instead 
of the expected one region) that you have to glue together before.

Dominik

> 
> Thanks a lot for the padding tip.
> Lynx
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