[Paraview] Mesh Subdivision

[Berk Geveci]

Something is fishy. You may have encountered a bug. Can you share a
dataset? Can you describe the steps you used to produce it?

-berk

On Sat, Feb 21, 2009 at 9:52 AM, David Doria <daviddoria at gmail.com> wrote:
> Well actually I think there should be connectivity information. This file
> was made using the DelaunayTriangulation2d filter, then the 2d points were
> replaced with 3d points, so the topology should be correct (ie the triangles
> share the correct points).
>
> Thanks,
>
> David
>
>
> On Sat, Feb 21, 2009 at 8:21 AM, Michael Jackson
> <mike.jackson at bluequartz.net> wrote:
>>
>> The file needs to have connectivity information. If it does not then you
>> will need to construct that information. You can look at the vtkSTLReader
>> class for an example of how you might go about doing that.
>>
>> ---
>> Mike Jackson                 www.bluequartz.net
>>
>>
>>
>> On Feb 21, 2009, at 7:39 AM, David Doria wrote:
>>
>>> So if my file just contains a bunch of triangles, how can I make it into
>>> a valid input mesh?
>>>
>>> Thanks,
>>>
>>> David
>>>
>>>
>>> On Sat, Feb 21, 2009 at 3:08 AM, Dominik Szczerba <dominik at itis.ethz.ch>
>>> wrote:
>>> -----BEGIN PGP SIGNED MESSAGE-----
>>> Hash: SHA1
>>>
>>> Problems with smoothing or subdividing most likely indicate invalid
>>> input mesh.
>>> - - Dominik
>>>
>>> David Doria wrote:
>>> > I have a polydata (vtp) with a bunch of triangles. I want to smooth the
>>> > mesh. I tried the subdivide filter, but it produces absolutely
>>> > ridiculous triangles. So I thought this meant the connectivity
>>> > information was wrong? So I tried the TriangleStrips filter and then
>>> > the
>>> > subdivide filter, but now the subdivide filter complains that there are
>>> > no triangles. I tried triangulate and then subdivide and I get the same
>>> > mess as in the first case.
>>> >
>>> > In all cases, the LoopSubdivision filter simply crashes. There is
>>> > clearly still something wrong with my understanding of these file
>>> > formats and which filters can be used on which types of files. Can
>>> > anyone clarify this for me?
>>> >
>>> > Thanks,
>>> >
>>> > David
>>> >
>>> >
>>> >
>>> > ------------------------------------------------------------------------
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>>>
>>> - --
>>> Dominik Szczerba, Ph.D.
>>> Computational Physics Group
>>> IT'IS Foundation for Research
>>> http://www.itis.ethz.ch
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>>
>
>
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>