[vtkusers] streaming vtkMarchingCubes?

Bill Lorensen bill.lorensen at gmail.com
Sun Jul 26 12:35:52 EDT 2009

I am surprised at this. vtkMarchingCubes should produce manifold and
oriented surfaces. There should be no duplicate points.
vtkMarchingCubes can produce multiple, topologically disconnected
surfaces. vtkDiscreteMarchingCubes can (and should) produce
geometrically continuous but topologically disconnected surafces.

Can you provide a test dataset that reproduces the problem?


On Sun, Jul 26, 2009 at 8:27 AM, Dominik Szczerba<dominik at itis.ethz.ch> wrote:
> I have experimentally found out that vtkMarchingCubes can generate
> geometrically continuous but topologically disconnected isosurfaces,
> i.e. the isosurface is cut into stripes along one axis with duplicate
> points on the edges. How do I get a control of this behavior,
> especially, to know if there will be disconnected stripes so I should
> merge the points (I need topological consistency)?
> -- Dominik
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