5 messages in org.paraview.paraviewRe: [Paraview] Glyph scaling and orie...| From | Sent On | Attachments |
|---|---|---|
| Pawel Krupinski | Mar 3, 2009 12:41 am | |
| David E DeMarle | Mar 3, 2009 8:13 am | |
| Jean Favre | Mar 3, 2009 8:41 am | |
| Eric E. Monson | Mar 4, 2009 6:24 am | |
| Pawel Krupinski | Mar 5, 2009 12:42 am |
| Subject: | Re: [Paraview] Glyph scaling and orienting/programmable filter? | |
|---|---|---|
| From: | Pawel Krupinski (exme...@yahoo.com) | |
| Date: | Mar 3, 2009 12:41:13 am | |
| List: | org.paraview.paraview | |
Thanks for reply,
but I don't think it will work in my case. Maybe I wasn't specific enough about
my data and it was confusing.
I have point data witch represent centers of ellipsoidal cells. With each point
there are associated lengths of ellipsoid axes (e.g. as a vector data), which
can be different for each ellipsoid, and directions of those axes in space (3
vectors). I want to display those ellipsoids oriented and in appropriate scale.
So I was thinking: I need to scale spheres anisotropically to get ellipsoids so
I really need to do it by scaling with vector components of the
scales/axes_length vector. Scaling by scalars works isotropically so it won't
help. Now I need to align axes of each ellipsoid in space. I probably need to do
it by programmable filter, but I don't know how to operate on separate glyphs
(ellipsoids) and their data. Did anyone have similar problem and solved it
somehow?
Thanks.
Pawel
mirko heuegger wrote I suggest that you 'convert' one vector data into a scalar (e.g. over the Calculator-filter, and by using the functions: mag(<vector>), iHat.<vector>, jHat.<vector>, or kHat.<vector> (magnitude, X, Y, and Z of a vector) for calculating the desired vector-parts). Then change the 'Scale Mode', of the Glyph-filter, to 'scalar', and select the calculation-result as scalar-field.
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