[vtkusers] closed meshes from vtkDiscreteMarchingCubes?

[Bill Lorensen]

Dominik,

I was never able to reproduce your problem with disconnected meshes.

Bill

On Sun, Aug 16, 2009 at 5:13 AM, Dominik Szczerba<dominik at itis.ethz.ch> wrote:
> 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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