New question #695966 on Yade:
https://answers.launchpad.net/yade/+question/695966
Hi all!
I have a question about VTKExporter exportFacet command. The main goal is to
export specified facets and forces, stresses, etc acting on them. I could
export facets to vtk and open in paraview, but without the forces, stresses,
etc. Here is the MWE:
#####
vtk = export.VTKExporter(vtksave+'file-')
def vtkexporter():
vtk.exportFacets(ids=facetid)
#####
Also a PyRunner is running in engines:
#####
PyRunner(command='vtkexporter()',virtPeriod=vtksampling)
#####
It works fine, but I have problem when i need to specify the what [1] command:
#####
vtk.exportFacets(ids=facetid, what=dict(velocity='b.state.vel'))
#####
The manual refers to see exportSpheres() [2], but its not very helpfull, cause
I'm getting this error:
/home/dem/Yade/install/lib/x86_64-linux-gnu/yade-2020-04-23.git-6c442b0/py/yade/export.pyc
in exportFacets(self, ids, what, comment, numLabel)
489 outFile.write("\nCELL_DATA %d"%(nBodies))
490 # see exportSpheres for explanation of this code block
--> 491 for name,command in what:
492 test = eval(command)
493 if isinstance(test,Matrix3):
ValueError: too many values to unpack
So what are the exact expressions that I have to use to save everything
(coordnumber, forceLen, forceVec, stressLen, stressVec, torqueLen, torqueVec)
like VTKRecorder do?
Thank you for your help!
D
--
[1]
https://yade-dem.org/doc/yade.export.html?highlight=exportfacets#yade.export.VTKExporter.exportFacets
[2]
https://yade-dem.org/doc/yade.export.html?highlight=vtkexporter#yade.export.VTKExporter.exportSpheres
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