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calculix / ccx2paraview

CalculiX to Paraview converter (frd to vtk/vtu). Makes possible to view and postprocess CalculiX analysis results in Paraview. Generates Mises and Principal components for stress and strain tensors.
GNU General Public License v3.0
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Nodes and elements are renumbered so that they start from 0 #28

Closed FEA-eng closed 2 months ago

FEA-eng commented 1 year ago

Hi,

I've noticed that when I use this converter and open the vtk file in ParaView, node and element numbers start from 0 instead of 1 like in the input file. I thought that it was a fault of ParaView but its dev told me that the converter itself does it. It can be a problem when exporting results of ParaView operations at nodes and cells (e.g. to map them to a mesh). Would it be possible to change this behavior ?

imirzov commented 1 year ago

Hi,

Yes, I renumbered nodes, because in VTK nodes are numbered starting from 0, not from 1. Moreover, VTK support only continuous numbering.

https://vtk.org/wp-content/uploads/2015/04/file-formats.pdf

"Indices are 0-offset. Thus the first point is point id 0."

imirzov commented 1 year ago

...and I do not know if this behavior could be changed. And I have no time to test it. Sorry. Try yourself.