[Paraview] how to utilize warp vector filter?
Renato N. Elias
rnelias at nacad.ufrj.br
Wed Apr 16 22:20:59 EDT 2008
I'm not sure if I understood your problem correctly, but some advices
could be given:
You said >> When I load my unstructured grid data set, neither the
Normals Generation filter nor the Warp (vector) filter is available
a). I guess your mesh only has volumetric elements (prisms, tetrahedra,
hexahedra, etc...). If so, just apply the "extract surface" filter
first. It will create the external surface elements, after that, you'll
be able to use the "normal generation" filter.
b). Have you supplied the displacement vector (otherwise, you will not
be able to apply the warp (vector) since you don't have any vectorial
variable to use)
c). Magnification: the warp filters (scalar or vector) have a scale
factor parameter which lets you control the level of exaggeration. If
you use the displacement vector to warp your cylinder, I guess you'll
get the effect you want.
I hope it helps you in anything
Renato N. Elias
Researcher - http://www.nacad.ufrj.br/~rnelias
High Performance Computing Center - NACAD
Federal University of Rio de Janeiro - UFRJ
Rio de Janeiro Brazil
> I have a set of scalar data on an unstructured grid representing
> effective stress on a cylindrical tube. I would like to use the warp
> vector filter to exaggerate the displacement of the tube surface. It
> appears that I need to have the cell normals available as a data array
> in order to scale the displacement and make it more visible. How do I
> do this? When I load my unstructured grid data set, neither the Normals
> Generation filter nor the Warp (vector) filter is available. ParaView
> is able to color the tube using cell normal as an attribute, but there
> does not seem to be a way to extract this attribute and use it for the
> warp vector filter. Any advice would be appreciated.
> Thanks, Julian C.
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