[Paraview] Mesh Subdivision

Michael Jackson mike.jackson at bluequartz.net
Sat Feb 21 08:21:32 EST 2009


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:
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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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