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119 lines
3.3 KiB
ReStructuredText
119 lines
3.3 KiB
ReStructuredText
.. _smesh_migration_page:
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*****************************************************
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Modifing Mesh Python scripts from SALOME 6 and before
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*****************************************************
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In SALOME 7.2, the Python interface for Mesh has been slightly modified to offer new functionality:
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Scripts generated for SALOME 6 and older versions must be adapted to work in SALOME 7.2 with full functionality.
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The compatibility mode allows old scripts to work in almost all cases, but with a warning.
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See also :ref:`geompy_migration_page`
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**Salome initialisation must always be done as shown below**
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*salome_init()* can be invoked safely several times):
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::
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import salome
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salome.salome_init()
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**smesh initialisation is modified.**
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the old mode (from dump):
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::
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import smesh, SMESH, SALOMEDS
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smesh.SetCurrentStudy(salome.myStudy)
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the new mode:
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::
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import SMESH, SALOMEDS
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from salome.smesh import smeshBuilder
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smesh = smeshBuilder.New(salome.myStudy)
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**Of course,** from smesh import ***is no more possible.**
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You have to explicitely write **smesh.some_method()**.
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**All algorithms have been transferred from the namespace **smesh** to the namespace **smeshBuilder**.**
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For instance:
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::
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MEFISTO_2D_1 = Mesh_1.Triangle(algo=smesh.MEFISTO,geom=Face_1)
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is replaced by:
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::
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MEFISTO_2D_1 = Mesh_1.Triangle(algo=smeshBuilder.MEFISTO,geom=Face_1)
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StdMeshers algorithms concerned are **REGULAR, PYTHON, COMPOSITE, MEFISTO, Hexa, QUADRANGLE, RADIAL_QUAD**.
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SMESH Plugins provide such algorithms as: **NETGEN, NETGEN_FULL, FULL_NETGEN, NETGEN_1D2D3D, NETGEN_1D2D, NETGEN_2D, NETGEN_3D**.
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If you use DISTENE plugins, you also have **BLSURF, GHS3D, GHS3DPRL, Hexotic**.
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**Some variables were available in both namespaces **smesh** and **SMESH**.
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Now they are available only in namespace **SMESH****.
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The dump function used only the namespace **SMESH**,
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so, if your script was built with the help of the dump function, it should be already OK in this respect.
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The most used variables concerned are:
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**NODE, EDGE, FACE, VOLUME, ALL.**
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**FT_xxx, geom_xxx, ADD_xxx...**
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For instance:
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::
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srcFaceGroup = srcMesh.GroupOnGeom( midFace0, "src faces", smesh.FACE )
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mesh.MakeGroup("Tetras",smesh.VOLUME,smesh.FT_ElemGeomType,"=",smesh.Geom_TETRA)
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filter = smesh.GetFilter(smesh.FACE, smesh.FT_AspectRatio, smesh.FT_MoreThan, 6.5)
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is replaced by:
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::
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srcFaceGroup = srcMesh.GroupOnGeom( midFace0, "src faces", SMESH.FACE )
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mesh.MakeGroup("Tetras",SMESH.VOLUME,SMESH.FT_ElemGeomType,"=",SMESH.Geom_TETRA)
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filter = smesh.GetFilter(SMESH.FACE, SMESH.FT_AspectRatio, SMESH.FT_MoreThan, 6.5)
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**The namespace **smesh.smesh** does not exist any more, use **smesh** instead.**
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For instance:
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::
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Compound1 = smesh.smesh.Concatenate([Mesh_inf.GetMesh(), Mesh_sup.GetMesh()], 0, 1, 1e-05)
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is replaced by:
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::
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Compound1 = smesh.Concatenate([Mesh_inf.GetMesh(), Mesh_sup.GetMesh()], 0, 1, 1e-05)
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**If you need to import a %SMESH Plugin explicitely, keep in mind that they are now located in separate namespaces.**
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For instance:
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::
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import StdMeshers
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import NETGENPlugin
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import BLSURFPlugin
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import GHS3DPlugin
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import HexoticPLUGIN
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is replaced by:
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::
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from salome.StdMeshers import StdMeshersBuilder
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from salome.NETGENPlugin import NETGENPluginBuilder
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from salome.BLSURFPlugin import BLSURFPluginBuilder
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from salome.GHS3DPlugin import GHS3DPluginBuilder
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from salome.HexoticPLUGIN import HexoticPLUGINBuilder
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