Periodicity is used to have the same discretization on two faces (in 3D) or two edges (in 2D).
This is useful for instance for a Representative Volume Element so that the translated meshes share the same nodes on the common faces.
-In GUI, periodicity association uses PreCAD (optional MG-CADSurf add-on). You must have a PreCAD license to be able to use it.
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-In TUI, advanced users can use CADSurf periodicity via \ref periodicity_tui_basic_api_usage "the basic API" or \ref periodicity_tui_advanced_api_usage "the advanced API". It requires to disable PreCAD. We strongly advise to use PreCAD periodicity instead.
+Periodicity association uses PreCAD (MG-CADSurf preprocessor). You don't need an extra PreCAD license. It is included in MG-CADSurf since MeshGems V2.2.
\image html blsurf_periodicity_translation.png "Two periodic faces (translation)"
The two methods to define periodicity with PreCAD are
(the former name of <em>MG-CADSurf</em> is \a BLSURF and names
of the corresponding classes and modules still include \a "BLSURF"):
-- BLSURFPluginBuilder.BLSURF_Algorithm.AddPreCadFacesPeriodicity
+- BLSURFPluginBuilder.BLSURF_Algorithm.AddPreCadFacesPeriodicity
- BLSURFPluginBuilder.BLSURF_Algorithm.AddPreCadEdgesPeriodicity
List of source and target vertices to define a transformation are optional.
\sa Sample TUI Script of the definition of MG-CADSurf periodicity \ref tui_blsurf_periodicity_preCAD "using preCAD".
-\subsection periodicity_tui_basic_api_usage TUI Basic API usage
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-In the CADSurf basic API, only available in TUI, the periodicity must be defined face by face, edge by edge and vertex by vertex.
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-You must disable PreCAD to use it. Hence, shapes with seam edges will not be meshed correctly.
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-The methods are:
-- BLSURFPluginBuilder.BLSURF_Algorithm.AddFacePeriodicity
-- BLSURFPluginBuilder.BLSURF_Algorithm.AddEdgePeriodicity
-- BLSURFPluginBuilder.BLSURF_Algorithm.AddEdgePeriodicityWithoutFaces
-- BLSURFPluginBuilder.BLSURF_Algorithm.AddVertexPeriodicity
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-Sample TUI Script of the definition of MG-CADSurf periodicity \ref tui_blsurf_periodicity_basic "using basic API (without preCAD)".
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-\subsection periodicity_tui_advanced_api_usage TUI Advanced API usage
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-To ease the periodicity description, the basic API methods can be called through two advanced methods, given two geom groups and a python geom transformation:
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-- BLSURFPluginBuilder.BLSURF_Algorithm.AddAdvancedFacesPeriodicity (in 3D)
-- BLSURFPluginBuilder.BLSURF_Algorithm.AddAdvancedEdgesPeriodicity (in 2D)
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-Sample TUI Script of the definition of MG-CADSurf periodicity \ref tui_blsurf_periodicity_advanced "using advanced API (without preCAD)".
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\ref blsurf_top "Back to top"
For more information on MeshGems-CADSurf, you can read its documentation at $MESHGEMS_ROOT_DIR/Docs/mg-cadsurf_user_manual.pdf
