-# Copyright (C) 2007-2016 CEA/DEN, EDF R&D
+# Copyright (C) 2007-2019 CEA/DEN, EDF R&D
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# Python API for the MG-CADSurf meshing plug-in module.
from salome.smesh.smesh_algorithm import Mesh_Algorithm
+import GEOM
LIBRARY = "libBLSURFEngine.so"
+# ElementType enum
+Triangles, QuadrangleDominant, Quadrangles = 0, 1, 2
+
# Topology treatment way of MG-CADSurf
FromCAD, PreProcess, PreProcessPlus, PreCAD = 0,1,2,3
_bad_surface_element_aspect_ratio = 1000
_geometric_approximation = 22
_gradation = 1.3
+ _volume_gradation = 2
_metric = "isotropic"
_remove_tiny_edges = 0
def __init__(self, mesh, geom=0):
Mesh_Algorithm.__init__(self)
if noBLSURFPlugin:
- print "Warning: BLSURFPlugin module unavailable"
- self.Create(mesh, geom, BLSURF, LIBRARY)
+ print("Warning: BLSURFPlugin module unavailable")
+ if mesh.GetMesh().HasShapeToMesh():
+ self.Create(mesh, geom, self.algoType, LIBRARY)
+ else:
+ self.Create(mesh, geom, self.algoType+"_NOGEOM", LIBRARY)
+ mesh.smeshpyD.SetName( self.algo, self.algoType )
self.params=None
self.geompyD = mesh.geompyD
#self.SetPhysicalMesh() - PAL19680
pass
## Sets maximal allowed ratio between the lengths of two adjacent edges.
+ # @param toUseGradation to use gradation
# @param theVal value of maximal length ratio
- def SetGradation(self, theVal=_gradation):
+ def SetGradation(self, toUseGradation=True, theVal=_gradation):
+ if isinstance( toUseGradation, float ): ## backward compatibility
+ toUseGradation, theVal = True, toUseGradation
if self.Parameters().GetGeometricMesh() == 0: theVal = self._gradation
+ self.Parameters().SetUseGradation(toUseGradation)
self.Parameters().SetGradation(theVal)
pass
+ ## Sets maximal allowed ratio between the lengths of two adjacent edges in 3D mesh.
+ # @param toUseGradation to use gradation
+ # @param theVal value of maximal length ratio
+ def SetVolumeGradation(self, toUseGradation=True, theVal=_gradation):
+ if self.Parameters().GetGeometricMesh() == 0: theVal = self._volume_gradation
+ self.Parameters().SetUseVolumeGradation(toUseGradation)
+ self.Parameters().SetVolumeGradation(theVal)
+ pass
+
## Sets topology usage way.
# @param way defines how mesh conformity is assured <ul>
# <li>FromCAD - mesh conformity is assured by conformity of a shape</li>
# <li>PreCAD - by pre-processing with PreCAD a CAD model</li></ul>
def SetTopology(self, way):
if way != PreCAD and way != FromCAD:
- print "Warning: topology mode %d is no longer supported. Mode FromCAD is used."%way
+ print("Warning: topology mode %d is no longer supported. Mode FromCAD is used."%way)
way = FromCAD
self.Parameters().SetTopology(way)
pass
- ## To respect geometrical edges or not.
- # @param toIgnoreEdges "ignore edges" flag value
- def SetDecimesh(self, toIgnoreEdges=False):
- if toIgnoreEdges:
- self.SetOptionValue("respect_geometry","0")
- else:
- self.SetOptionValue("respect_geometry","1")
- pass
+ ## Activate/deactivate surface proximity computation
+ # @param toUse boolean flag
+ #
+ def SetSurfaceProximity(self, toUse ):
+ self.Parameters().SetSurfaceProximity(toUse)
+ return
+
+ ## Set number of surface element layers to be generated due to surface proximity
+ # @param nbLayers number of layers
+ #
+ def SetNbSurfaceProximityLayers(self, nbLayers ):
+ self.Parameters().SetNbSurfaceProximityLayers( nbLayers )
+ return
+
+ ## Set coefficient by which size of element refined due to surface proximity is increased
+ # @param ratio proximity coefficient
+ #
+ def SetSurfaceProximityRatio(self, ratio ):
+ self.Parameters().SetSurfaceProximityRatio(ratio)
+ return
+
+ ## Activate/deactivate volume proximity computation
+ # @param toUse boolean flag
+ #
+ def SetVolumeProximity(self, toUse ):
+ self.Parameters().SetVolumeProximity(toUse)
+ return
+
+ ## Set number of surface element layers to be generated due to volume proximity
+ # @param nbLayers number of layers
+ #
+ def SetNbVolumeProximityLayers(self, nbLayers ):
+ self.Parameters().SetNbVolumeProximityLayers(nbLayers)
+ return
+
+ ## Set coefficient by which size of element refined due to volume proximity is increased
+ # @param ratio proximity coefficient
+ #
+ def SetVolumeProximityRatio(self, ratio ):
+ self.Parameters().SetVolumeProximityRatio(ratio)
+ return
+
## Sets verbosity level in the range 0 to 100.
# @param level verbosity level
self.Parameters().SetVerbosity(level)
pass
+ ## Set enforce_cad_edge_sizes parameter
+ #
+ # Relaxes the given sizemap constraint around CAD edges to allow a better
+ # element quality and a better geometric approximation. It is only useful in
+ # combination with the gradation option.
+ #
+ def SetEnforceCadEdgesSize( self, toEnforce ):
+ self.Parameters().SetEnforceCadEdgesSize( toEnforce )
+
+ ## Set jacobian_rectification_respect_geometry parameter
+ #
+ # While making the mesh quadratic, allows to lose the CAD-mesh associativity in order
+ # to correct elements with nagative Jacobian
+ #
+ def SetJacobianRectificationRespectGeometry( self, allowRectification ):
+ self.Parameters().SetJacobianRectificationRespectGeometry( allowRectification )
+
+ ## Set rectify_jacobian parameter
+ #
+ # While making the mesh quadratic, allow to fix nagative Jacobian surface elements
+ #
+ def SetJacobianRectification( self, allowRectification ):
+ self.Parameters().SetJacobianRectification( allowRectification )
+
+ ## Set use_deprecated_patch_mesher parameter (compatibility with older versions of Meshgems)
+ #
+ # the use_deprecated_patch_mesher parameter allows to keep the same behaviour than
+ # in salome < 8.3 (meshgems 2.1.11 instead of meshgems >= 2.4.5)
+ #
+ def SetUseDeprecatedPatchMesher( self, useDeprecatedPatchMesher ):
+ self.Parameters().SetUseDeprecatedPatchMesher( useDeprecatedPatchMesher )
+
+ ## Set respect_geometry parameter
+ #
+ # This patch independent option can be deactivated to allow MeshGems-CADSurf
+ # to lower the geometry accuracy in its patch independent process.
+ #
+ def SetRespectGeometry( self, toRespect ):
+ self.Parameters().SetRespectGeometry( toRespect )
+
+ ## Set max_number_of_points_per_patch parameter
+ #
+ # This parameter controls the maximum amount of points MeshGems-CADSurf is allowed
+ # to generate on a single CAD patch. For an automatic gestion of the memory, one
+ # can set this parameter to 0
+ #
+ def SetMaxNumberOfPointsPerPatch( self, nb ):
+ print("Warning: method SetMaxNumberOfPointsPerPatch() is deprecated")
+ self.Parameters().SetMaxNumberOfPointsPerPatch( nb )
+
+ ## Set max_number_of_threads parameter
+ #
+ # Set the maximum of threads to use for multithreading mesh computation
+ #
+ def SetMaxNumberOfThreads( self, nb ):
+ self.Parameters().SetMaxNumberOfThreads( nb )
+
+ ## Set respect_geometry parameter
+ #
+ # This patch independent option can be deactivated to allow MeshGems-CADSurf
+ # to lower the geometry accuracy in its patch independent process.
+ #
+ def SetRespectGeometry( self, toRespect ):
+ self.Parameters().SetRespectGeometry( toRespect )
+
+ ## Set tiny_edges_avoid_surface_intersections parameter
+ #
+ # This option defines the priority between the tiny feature
+ # suppression and the surface intersection prevention.
+ #
+ def SetTinyEdgesAvoidSurfaceIntersections( self, toAvoidIntersection ):
+ self.Parameters().SetTinyEdgesAvoidSurfaceIntersections( toAvoidIntersection )
+
+ ## Set closed_geometry parameter parameter
+ #
+ # Describes whether the geometry is expected to be closed or not.
+ # When activated, this option helps MeshGems-PreCAD to treat the dirtiest geometries.
+ #
+ def SetClosedGeometry( self, isClosed ):
+ self.Parameters().SetClosedGeometry( isClosed )
+
+ ## Set debug parameter
+ #
+ # Make MeshGems-CADSurf will be very verbose and will output some intermediate
+ # files in the working directory. This option is mainly meant for Distene support issues.
+ #
+ def SetDebug( self, isDebug ):
+ self.Parameters().SetDebug( isDebug )
+
+ ## Set periodic_tolerance parameter
+ #
+ # This parameter defines the maximum size difference between two periodic edges
+ # and also the maximum distance error between two periodic entities.
+ #
+ def SetPeriodicTolerance( self, tol ):
+ self.Parameters().SetPeriodicTolerance( tol )
+
+ ## Set required_entities parameter
+ #
+ # The required entities control the correction operations.
+ # Accepted values for this parameter are :
+ # - "respect" : MeshGems-CADSurf is not allowed to alter any required entity,
+ # even for correction purposes,
+ # - "ignore" : MeshGems-CADSurf will ignore the required entities in its processing,
+ # - "clear" : MeshGems-CADSurf will clear any required status for the entities.
+ # There will not be any entity marked as required in the generated mesh.
+ #
+ def SetRequiredEntities( self, howToTreat ):
+ self.Parameters().SetRequiredEntities( howToTreat )
+
+ ## Set sewing_tolerance parameter
+ #
+ # This parameter is the tolerance of the assembly.
+ #
+ def SetSewingTolerance( self, tol ):
+ self.Parameters().SetSewingTolerance( tol )
+
+ ## Set tags parameter
+ #
+ # The tag (attribute) system controls the optimisation process.
+ # Accepted values for this parameter are :
+ # - "respect" : the CAD tags will be preserved and unaltered by the optimisation operations,
+ # - "ignore" : the CAD tags will be ignored by the optimisation operations
+ # but they will still be present in the output mesh,
+ # - "clear" : MeshGems-CADSurf will clear any tag on any entity and optimise accordingly.
+ # There will not be any tag in the generated mesh.
+ #
+ def SetTags( self, howToTreat ):
+ self.Parameters().SetTags( howToTreat )
+
+ ## Activate/deactivate fully patch independent meshing
+ # @param isIndependent boolean flag
+ #
+ # This feature can only be used if the @a tags parameter is set to "respect".
+ # By default this option deactivated.
+ #
+ def SetPatchIndependent( self, isIndependent ):
+ self.SetOptionValue( "allow_patch_independent", "yes" if isIndependent else "no" )
+
+ ## Set to preserve lines defined by a sharp angle in the input discrete geometry
+ # @param toCompute boolean flag
+ #
+ # If this option is deactivated, MeshGems-CADSurf will not try to preserve lines
+ # defined by a sharp angle in the input discrete geometry. Only input ridges, free
+ # edges, non manifold edges and separation betwen zones with different attributes
+ # will be respected (if tags is set to respect).
+ # By default this option activated.
+ #
+ def SetComputeRidges( self, toCompute ):
+ self.SetOptionValue( "compute_ridges", "yes" if toCompute else "no" )
+
+
+ ## Activate removal of the tiny edges from the generated
+ # mesh when it improves the local mesh quality, without taking into account the
+ # tags (attributes) specifications.
+ # @param toOptimise "to optimize" flag value
+ # @param length minimal length under which an edge is considered to be a tiny
+ def SetOptimiseTinyEdges(self, toOptimise, length=-1):
+ self.Parameters().SetOptimiseTinyEdges( toOptimise )
+ if toOptimise:
+ self.Parameters().SetTinyEdgeOptimisationLength( length )
+
+ ## Activate correction of all surface intersections
+ # @param toCorrect "to correct" flag value
+ # @param maxCost the time the user is ready to spend in the intersection prevention process
+ # For example, maxCost = 3 means that MeshGems-CADSurf will not spend more time
+ # in the intersection removal process than 3 times the time required to mesh
+ # without processing the intersections.
+ def SetCorrectSurfaceIntersection(self, toCorrect, maxCost ):
+ self.Parameters().SetCorrectSurfaceIntersection( toCorrect )
+ if toCorrect:
+ self.Parameters().SetCorrectSurfaceIntersectionMaxCost( maxCost )
+
## To optimize merges edges.
# @param toMergeEdges "merge edges" flag value
def SetPreCADMergeEdges(self, toMergeEdges=False):
self.Parameters().SetPreCADMergeEdges(toMergeEdges)
pass
- ## To remove tiny UV edges.
- # @param toRemoveTinyUVEdges "remove_tiny_uv_edges" flag value
- def SetPreCADRemoveTinyUVEdges(self, toRemoveTinyUVEdges=False):
- self.Parameters().SetPreCADRemoveTinyUVEdges(toRemoveTinyUVEdges)
- pass
-
## To remove duplicate CAD Faces
# @param toRemoveDuplicateCADFaces "remove_duplicate_cad_faces" flag value
def SetPreCADRemoveDuplicateCADFaces(self, toRemoveDuplicateCADFaces=False):
self.Parameters().SetPreCADOptionValue(optionName,optionValue)
pass
+ ## Adds custom advanced option values
+ # @param optionsAndValues options and values in a form "option_1 v1 option_2 v2'"
+ def SetAdvancedOption(self, optionsAndValues):
+ self.Parameters().SetAdvancedOption(optionsAndValues)
+ pass
+
## Adds custom advanced option value.
# @param optionName custom advanced option name
# @param level custom advanced option value
return self.Parameters().SetEnforcedVertexGeomWithGroup(theFace, theVertex,groupName)
pass
+ ## Set an enforced vertex on a face given the coordinates of a point.
+ # The face if found by the application.
+ # @param x : x coordinate
+ # @param y : y coordinate
+ # @param z : z coordinate
+ # @param vertexName : name of the enforced vertex
+ # @param groupName : name of the group
+ def AddEnforcedVertex(self, x, y, z, vertexName = "", groupName = ""):
+ from salome.smesh.smeshBuilder import AssureGeomPublished
+ if vertexName == "":
+ if groupName == "":
+ return self.Parameters().AddEnforcedVertex(x, y, z)
+ else:
+ return self.Parameters().AddEnforcedVertexWithGroup(x, y, z, groupName)
+ pass
+ else:
+ if groupName == "":
+ return self.Parameters().AddEnforcedVertexNamed(x, y, z, vertexName)
+ else:
+ return self.Parameters().AddEnforcedVertexNamedWithGroup( x, y, z, vertexName, groupName)
+ pass
+ pass
+
+ ## To set an enforced vertex on a face given a GEOM vertex, group or compound.
+ # The face if found by the application.
+ # @param theVertex : GEOM vertex (or group, compound).
+ # @param groupName : name of the group
+ def AddEnforcedVertexGeom(self, theVertex, groupName = ""):
+ from salome.smesh.smeshBuilder import AssureGeomPublished
+ AssureGeomPublished( self.mesh, theVertex )
+ if groupName == "":
+ return self.Parameters().AddEnforcedVertexGeom(theVertex)
+ else:
+ return self.Parameters().AddEnforcedVertexGeomWithGroup(theVertex,groupName)
+ pass
+
## To remove an enforced vertex on a given GEOM face (or group, compound) given the coordinates.
# @param theFace : GEOM face (or group, compound) on which to remove the enforced vertex
# @param x : x coordinate
self.Parameters().ClearSizeMaps()
pass
- ## Sets QuadAllowed flag.
+ ## Sets QuadAllowed flag (DEPRECATED: use SetElementType)
# @param toAllow "allow quadrangles" flag value
+ # TODO: to remove in Salome 9
def SetQuadAllowed(self, toAllow=True):
self.Parameters().SetQuadAllowed(toAllow)
pass
+ ## Sets elements type
+ # @param theElementType: 0 (Triangles), 1 (QuadrangleDominant), 2 (Quadrangles)
+ def SetElementType(self, theElementType=Triangles):
+ self.Parameters().SetElementType(theElementType)
+ pass
+
## Defines hypothesis having several parameters
# @return hypothesis object
def Parameters(self):
if not self.params:
- self.params = self.Hypothesis("MG-CADSurf Parameters", [],
- LIBRARY, UseExisting=0)
+ hypType = "MG-CADSurf Parameters"
+ hasGeom = self.mesh.GetMesh().HasShapeToMesh()
+ if hasGeom:
+ self.params = self.Hypothesis(hypType, [], LIBRARY, UseExisting=0)
+ else:
+ self.params = self.Hypothesis(hypType + "_NOGEOM", [], LIBRARY, UseExisting=0)
+ self.mesh.smeshpyD.SetName( self.params, hypType )
pass
return self.params
self.Parameters().AddPreCadEdgesPeriodicity(theEdge1, theEdge2)
pass
- #=====================
- # Obsolete methods
- #=====================
- #
- # SALOME 6.6.0
- #
-
- ## Sets lower boundary of mesh element size (PhySize).
- def SetPhyMin(self, theVal=-1):
- """
- Obsolete function. Use SetMinSize.
- """
- print "Warning: SetPhyMin is obsolete. Please use SetMinSize"
- self.SetMinSize(theVal)
- pass
-
- ## Sets upper boundary of mesh element size (PhySize).
- def SetPhyMax(self, theVal=-1):
- """
- Obsolete function. Use SetMaxSize.
- """
- print "Warning: SetPhyMax is obsolete. Please use SetMaxSize"
- self.SetMaxSize(theVal)
- pass
-
- ## Sets angular deflection (in degrees) of a mesh face from CAD surface.
- def SetAngleMeshS(self, theVal=_geometric_approximation):
- """
- Obsolete function. Use SetAngleMesh.
- """
- print "Warning: SetAngleMeshS is obsolete. Please use SetAngleMesh"
- self.SetAngleMesh(theVal)
- pass
-
- ## Sets angular deflection (in degrees) of a mesh edge from CAD curve.
- def SetAngleMeshC(self, theVal=_geometric_approximation):
- """
- Obsolete function. Use SetAngleMesh.
- """
- print "Warning: SetAngleMeshC is obsolete. Please use SetAngleMesh"
- self.SetAngleMesh(theVal)
- pass
-
- ## Sets lower boundary of mesh element size computed to respect angular deflection.
- def SetGeoMin(self, theVal=-1):
- """
- Obsolete function. Use SetMinSize.
- """
- print "Warning: SetGeoMin is obsolete. Please use SetMinSize"
- self.SetMinSize(theVal)
- pass
-
- ## Sets upper boundary of mesh element size computed to respect angular deflection.
- def SetGeoMax(self, theVal=-1):
- """
- Obsolete function. Use SetMaxSize.
- """
- print "Warning: SetGeoMax is obsolete. Please use SetMaxSize"
- self.SetMaxSize(theVal)
- pass
-
+ #-----------------------------------------
+ # Hyper-Patches
+ #-----------------------------------------
+
+ ## Defines hyper-patches. A hyper-patch is a set of adjacent faces meshed as a whole,
+ # ignoring edges between them
+ # @param hyperPatchList : list of hyper-patches. A hyper-patch is defined as a list of
+ # faces or groups of faces. A face can be identified either as a GEOM object or
+ # a face ID (returned e.g. by geompy.GetSubShapeID( mainShape, subShape )).
+ #
+ # Example: cadsurf.SetHyperPatches([[ Face_1, Group_2 ],[ 13, 23 ]])
+ def SetHyperPatches(self, hyperPatchList):
+ hpl = []
+ for patch in hyperPatchList:
+ ids = []
+ for face in patch:
+ if isinstance( face, int ):
+ ids.append( face )
+ elif isinstance( face, GEOM._objref_GEOM_Object):
+ faces = self.mesh.geompyD.SubShapeAll( face, self.mesh.geompyD.ShapeType["FACE"] )
+ for f in faces:
+ ids.append( self.mesh.geompyD.GetSubShapeID( self.mesh.geom, f ))
+ else:
+ raise TypeError("Face of hyper-patch should be either ID or GEOM_Object, not %s" % type(face))
+ pass
+ hpl.append( ids )
+ pass
+ self.Parameters().SetHyperPatches( hpl )
+ return
pass # end of BLSURF_Algorithm class
