[vtkusers] vtkContourFilter produces inconstistent meshes

[Bill Lorensen]

Try vtkDiscreteMarchingCubes. It is specifically designed to work with 
binary volumes. It is available in vtk release 4.4 and the nightly.

Bill

At 12:01 PM 11/4/2004, Toon Huysmans wrote:


>Hi Hendrik,
>
>If you have a binary volume, i would use the vtkMarchingCubes filter.
>
>I am not sure, but it could be that vtkContourFilter uses vtkMarchingCubes
>underlying, so my suggestion would not work that case.
>
>Greetings,
>
>Toon.
>
>
>>----- Original Message ----- From: "Hendrik Belitz" <h.belitz at fz-juelich.de>
>>To: <vtkusers at vtk.org>
>>Sent: Thursday, November 04, 2004 2:37 PM
>>Subject: [vtkusers] vtkContourFilter produces inconstistent meshes
>>
>>
>>Hello,
>>
>>maybe you could assist me in solving a little problem. I need to extract a
>>surface mesh from a given binary volume dataset. The volume data is
>>topologically simple (no holes or gaps). But by extracting it with  the
>>vtkContourFilter, some holes appear in the resulting mesh.
>>
>>Do you know any other ready-to-use implementations or fixups for isosurface
>>generation which solve this problem? Or are you able to point me to some
>>repair algorithm to fix the holes in the resulting mesh?
>>
>>----------------------------------------------------------------
>>Hendrik Belitz
>>Central institute of electronics
>>  Multimodal image processing group
>>Research Center Jülich
>>D-52428 Jülich, Germany
>>Tel.: (++49)2461 61 4578
>>Fax: (++49)2461 61 3990
>>email: h.belitz at fz-juelich.de
>>
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