[Paraview] Mesh Subdivision

[David Doria]

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-----
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>> 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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