X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=src%2FSMESH_SWIG%2Fsmesh_algorithm.py;h=a57b034633f9e65d9c1a8e809aece3bd0405a79f;hp=3623b51764acc807ff104349556ca42f6a423920;hb=512d3547bc726e9bb5732b1d0692e1141ca258e1;hpb=63a442b2c3cbc5e2155d83e86dfdb77d6961fab3 diff --git a/src/SMESH_SWIG/smesh_algorithm.py b/src/SMESH_SWIG/smesh_algorithm.py index 3623b5176..a57b03463 100644 --- a/src/SMESH_SWIG/smesh_algorithm.py +++ b/src/SMESH_SWIG/smesh_algorithm.py @@ -1,4 +1,4 @@ -# Copyright (C) 2007-2014 CEA/DEN, EDF R&D, OPEN CASCADE +# Copyright (C) 2007-2015 CEA/DEN, EDF R&D, OPEN CASCADE # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public @@ -23,7 +23,7 @@ import salome from salome.geom import geomBuilder -import SMESH +import SMESH, StdMeshers ## The base class to define meshing algorithms # @@ -40,7 +40,7 @@ import SMESH # @code # meshMethod = "MyAlgorithm" # @endcode -# then an instance of @c MyPlugin_Algorithm can be created by the direct invokation of the function +# then an instance of @c MyPlugin_Algorithm can be created by the direct invocation of the function # of smesh.Mesh class: # @code # my_algo = mesh.MyAlgorithm() @@ -85,6 +85,7 @@ class Mesh_Algorithm: attr = hypo_so_i.FindAttribute("AttributeIOR")[1] if attr is not None: anIOR = attr.Value() + if not anIOR: continue # prevent exception in orb.string_to_object() hypo_o_i = salome.orb.string_to_object(anIOR) if hypo_o_i is not None: # Check if this is a hypothesis @@ -128,6 +129,7 @@ class Mesh_Algorithm: attr = algo_so_i.FindAttribute("AttributeIOR")[1] if attr is not None: anIOR = attr.Value() + if not anIOR: continue # prevent exception in orb.string_to_object() algo_o_i = salome.orb.string_to_object(anIOR) if algo_o_i is not None: # Check if this is an algorithm @@ -257,7 +259,7 @@ class Mesh_Algorithm: ## Defines "ViscousLayers" hypothesis to give parameters of layers of prisms to build # near mesh boundary. This hypothesis can be used by several 3D algorithms: - # NETGEN 3D, GHS3D, Hexahedron(i,j,k) + # NETGEN 3D, MG-Tetra, Hexahedron(i,j,k) # @param thickness total thickness of layers of prisms # @param numberOfLayers number of layers of prisms # @param stretchFactor factor (>1.0) of growth of layer thickness towards inside of mesh @@ -266,28 +268,47 @@ class Mesh_Algorithm: # the value of \a isFacesToIgnore parameter. # @param isFacesToIgnore if \c True, the Viscous layers are not generated on the # faces specified by the previous parameter (\a faces). + # @param extrMethod extrusion method defines how position of new nodes are found during + # prism construction and how creation of distorted and intersecting prisms is + # prevented. Possible values are: + # - StdMeshers.SURF_OFFSET_SMOOTH (default) method extrudes nodes along normal + # to underlying geometrical surface. Smoothing of internal surface of + # element layers can be used to avoid creation of invalid prisms. + # - StdMeshers.FACE_OFFSET method extrudes nodes along average normal of + # surrounding mesh faces till intersection with a neighbor mesh face + # translated along its own normal by the layers thickness. Thickness + # of layers can be limited to avoid creation of invalid prisms. + # - StdMeshers.NODE_OFFSET method extrudes nodes along average normal of + # surrounding mesh faces by the layers thickness. Thickness of + # layers can be limited to avoid creation of invalid prisms. # @ingroup l3_hypos_additi def ViscousLayers(self, thickness, numberOfLayers, stretchFactor, - faces=[], isFacesToIgnore=True ): + faces=[], isFacesToIgnore=True, extrMethod=StdMeshers.SURF_OFFSET_SMOOTH ): if not isinstance(self.algo, SMESH._objref_SMESH_3D_Algo): raise TypeError, "ViscousLayers are supported by 3D algorithms only" if not "ViscousLayers" in self.GetCompatibleHypothesis(): raise TypeError, "ViscousLayers are not supported by %s"%self.algo.GetName() if faces and isinstance( faces[0], geomBuilder.GEOM._objref_GEOM_Object ): - faces = [ self.mesh.geompyD.GetSubShapeID(self.mesh.geom, f) for f in faces ] + faceIDs = [] + for shape in faces: + ff = self.mesh.geompyD.SubShapeAll( shape, self.mesh.geompyD.ShapeType["FACE"] ) + for f in ff: + faceIDs.append( self.mesh.geompyD.GetSubShapeID(self.mesh.geom, f)) + faces = faceIDs hyp = self.Hypothesis("ViscousLayers", [thickness, numberOfLayers, stretchFactor, faces, isFacesToIgnore], toAdd=False) - hyp.SetTotalThickness(thickness) - hyp.SetNumberLayers(numberOfLayers) - hyp.SetStretchFactor(stretchFactor) - hyp.SetFaces(faces, isFacesToIgnore) + hyp.SetTotalThickness( thickness ) + hyp.SetNumberLayers( numberOfLayers ) + hyp.SetStretchFactor( stretchFactor ) + hyp.SetFaces( faces, isFacesToIgnore ) + hyp.SetMethod( extrMethod ) self.mesh.AddHypothesis( hyp, self.geom ) return hyp ## Defines "ViscousLayers2D" hypothesis to give parameters of layers of quadrilateral # elements to build near mesh boundary. This hypothesis can be used by several 2D algorithms: - # NETGEN 2D, NETGEN 1D-2D, Quadrangle (mapping), MEFISTO, BLSURF + # NETGEN 2D, NETGEN 1D-2D, Quadrangle (mapping), MEFISTO, MG-CADSurf # @param thickness total thickness of layers of quadrilaterals # @param numberOfLayers number of layers # @param stretchFactor factor (>1.0) of growth of layer thickness towards inside of mesh @@ -304,7 +325,12 @@ class Mesh_Algorithm: if not "ViscousLayers2D" in self.GetCompatibleHypothesis(): raise TypeError, "ViscousLayers2D are not supported by %s"%self.algo.GetName() if edges and isinstance( edges[0], geomBuilder.GEOM._objref_GEOM_Object ): - edges = [ self.mesh.geompyD.GetSubShapeID(self.mesh.geom, f) for f in edges ] + edgeIDs = [] + for shape in edges: + ee = self.mesh.geompyD.SubShapeAll( shape, self.mesh.geompyD.ShapeType["EDGE"]) + for e in ee: + edgeIDs.append( self.mesh.geompyD.GetSubShapeID( self.mesh.geom, e )) + edges = edgeIDs hyp = self.Hypothesis("ViscousLayers2D", [thickness, numberOfLayers, stretchFactor, edges, isEdgesToIgnore], toAdd=False)