No idea ? No known python example / code snippet ?
Franck
Le 2015-09-07 9:42, houssen a écrit :
How to extract one face from an hexa in python ?
I have an hexa read from an xmd file. In the ParaView GUI, I use the
ExtractSurface filter to get the skin of it. Then I select one face.
Then I use the ExtractSelection filter : I get the face extracted as
I
need (without error message).
OK, now I need to do that with python scripting : if somebody has the
corresponding code snippet I'd appreciate to get it (filter creation
is OK. What I don't know is how to select a face from the hexa
surface
in python). I activated "tools / start trace (+ general option : all
properties)" to get an idea of the python code. When I create the
ExtractSurface filter, I get :
Traceback (most recent call last):
File
"/home/houssen/Programs/ParaView/ParaView-v4.3.1-source/local/lib/paraview-4.3/site-packages/paraview/smtrace.py",
line 1212, in _create_trace_item_internal
File
"/home/houssen/Programs/ParaView/ParaView-v4.3.1-source/local/lib/paraview-4.3/site-packages/paraview/smtrace.py",
line 881, in __init__
File
"/home/houssen/Programs/ParaView/ParaView-v4.3.1-source/local/lib/paraview-4.3/site-packages/paraview/smtrace.py",
line 162, in get_accessor
File
"/home/houssen/Programs/ParaView/ParaView-v4.3.1-source/local/lib/paraview-4.3/site-packages/paraview/smtrace.py",
line 183, in create_accessor
File
"/home/houssen/Programs/ParaView/ParaView-v4.3.1-source/local/lib/paraview-4.3/site-packages/paraview/simple.py",
line 680, in GetActiveSource
File
"/home/houssen/Programs/ParaView/ParaView-v4.3.1-source/local/lib/paraview-4.3/site-packages/paraview/simple.py",
line 1690, in get_source
File
"/home/houssen/Programs/ParaView/ParaView-v4.3.1-source/local/lib/paraview-4.3/site-packages/paraview/simple.py",
line 1684, in __convert_proxy
servermanager._getPyProxy(px.GetSourceProxy()),
AttributeError: GetSourceProxy
Then, I select a face and I create an ExtractSelection filter, I get
another error and ParaView crashes :
Traceback (most recent call last):
File
"/home/houssen/Programs/ParaView/ParaView-v4.3.1-source/local/lib/paraview-4.3/site-packages/paraview/smtrace.py",
line 1212, in _create_trace_item_internal
File
"/home/houssen/Programs/ParaView/ParaView-v4.3.1-source/local/lib/paraview-4.3/site-packages/paraview/smtrace.py",
line 1063, in __init__
File
"/home/houssen/Programs/ParaView/ParaView-v4.3.1-source/local/lib/paraview-4.3/site-packages/paraview/servermanager.py",
line 2418, in _getPyProxy
xmlName = smproxy.GetXMLName()
AttributeError: GetXMLName
*** Error in
`/home/houssen/Programs/ParaView/ParaView-v4.3.1-source/local/lib/paraview-4.3/paraview':
free(): invalid pointer: 0x00007efcddf97240 ***
Abandon (core dumped)
This crash is maybe related to the ParaView build ? I run
Ubuntu-14.04, ParaView-4.3.1 has been built from source without any
specific / triky option (or some basic options like cmake
-DPARAVIEW_INSTALL_DEVELOPMENT_FILES:BOOL=ON
-DModule_vtkIOXdmf3:BOOL=ON) : do I have to turn on some option(s) at
build time to avoid the crash ? I attached the CMakeCache file.
Franck
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