X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=src%2FSMESH_SWIG%2Fsmesh_algorithm.py;h=fc48e7ba2cfe8fad24193c49e7160a0f936c2002;hp=e72a81f8e8f14dad711cd502b2cfadf7bd0a8d58;hb=b6e8c17211f3a65d729b5ffe7269c789a042ae24;hpb=54182913fbb9df65a3f4cc96f55db3618835ecd8 diff --git a/src/SMESH_SWIG/smesh_algorithm.py b/src/SMESH_SWIG/smesh_algorithm.py index e72a81f8e..fc48e7ba2 100644 --- a/src/SMESH_SWIG/smesh_algorithm.py +++ b/src/SMESH_SWIG/smesh_algorithm.py @@ -1,9 +1,9 @@ -# Copyright (C) 2007-2013 CEA/DEN, EDF R&D, OPEN CASCADE +# Copyright (C) 2007-2016 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 # License as published by the Free Software Foundation; either -# version 2.1 of the License. +# version 2.1 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of @@ -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 @@ -180,8 +182,8 @@ class Mesh_Algorithm: ## Private method. def Create(self, mesh, geom, hypo, so="libStdMeshersEngine.so"): - if geom is None: - raise RuntimeError, "Attemp to create " + hypo + " algoritm on None shape" + if geom is None and mesh.mesh.HasShapeToMesh(): + raise RuntimeError, "Attemp to create " + hypo + " algorithm on None shape" algo = self.FindAlgorithm(hypo, mesh.smeshpyD) if algo is None: algo = mesh.smeshpyD.CreateHypothesis(hypo, so) @@ -192,24 +194,17 @@ class Mesh_Algorithm: ## Private method def Assign(self, algo, mesh, geom): from salome.smesh.smeshBuilder import AssureGeomPublished, TreatHypoStatus, GetName - if geom is None: - raise RuntimeError, "Attemp to create " + algo + " algoritm on None shape" + if geom is None and mesh.mesh.HasShapeToMesh(): + raise RuntimeError, "Attemp to create " + algo + " algorithm on None shape" self.mesh = mesh - name = "" if not geom or geom.IsSame( mesh.geom ): self.geom = mesh.geom else: self.geom = geom AssureGeomPublished( mesh, geom ) - try: - name = GetName(geom) - pass - except: - pass self.subm = mesh.mesh.GetSubMesh(geom, algo.GetName()) self.algo = algo - status = mesh.mesh.AddHypothesis(self.geom, self.algo) - TreatHypoStatus( status, algo.GetName(), name, True ) + status = mesh.AddHypothesis(self.algo, self.geom) return def CompareHyp (self, hyp, args): @@ -221,7 +216,7 @@ class Mesh_Algorithm: ## Private method def Hypothesis (self, hyp, args=[], so="libStdMeshersEngine.so", - UseExisting=0, CompareMethod=""): + UseExisting=0, CompareMethod="", toAdd=True): from salome.smesh.smeshBuilder import TreatHypoStatus, GetName hypo = None if UseExisting: @@ -250,8 +245,9 @@ class Mesh_Algorithm: geomName="" if self.geom: geomName = GetName(self.geom) - status = self.mesh.mesh.AddHypothesis(self.geom, hypo) - TreatHypoStatus( status, GetName(hypo), geomName, 0 ) + if toAdd: + status = self.mesh.mesh.AddHypothesis(self.geom, hypo) + TreatHypoStatus( status, GetName(hypo), geomName, 0, self.mesh ) return hypo ## Returns entry of the shape to mesh in the study @@ -263,51 +259,93 @@ 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 - # @param ignoreFaces list of geometrical faces (or their ids) not to generate layers on + # @param faces list of geometrical faces (or their ids). + # Viscous layers are either generated on these faces or not, depending on + # 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, ignoreFaces=[]): + def ViscousLayers(self, thickness, numberOfLayers, stretchFactor, + 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 ignoreFaces and isinstance( ignoreFaces[0], geomBuilder.GEOM._objref_GEOM_Object ): - ignoreFaces = [ self.mesh.geompyD.GetSubShapeID(self.mesh.geom, f) for f in ignoreFaces ] + if faces and isinstance( faces, geomBuilder.GEOM._objref_GEOM_Object ): + faces = [ faces ] + if faces and isinstance( faces[0], geomBuilder.GEOM._objref_GEOM_Object ): + 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, ignoreFaces]) - hyp.SetTotalThickness(thickness) - hyp.SetNumberLayers(numberOfLayers) - hyp.SetStretchFactor(stretchFactor) - hyp.SetIgnoreFaces(ignoreFaces) + [thickness, numberOfLayers, stretchFactor, faces, isFacesToIgnore], + toAdd=False) + 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 - # @param ignoreEdges list of geometrical edge (or their ids) not to generate layers on + # @param edges list of geometrical edges (or their ids). + # Viscous layers are either generated on these edges or not, depending on + # the value of \a isEdgesToIgnore parameter. + # @param isEdgesToIgnore if \c True, the Viscous layers are not generated on the + # edges specified by the previous parameter (\a edges). # @ingroup l3_hypos_additi - def ViscousLayers2D(self, thickness, numberOfLayers, stretchFactor, ignoreEdges=[]): + def ViscousLayers2D(self, thickness, numberOfLayers, stretchFactor, + edges=[], isEdgesToIgnore=True ): if not isinstance(self.algo, SMESH._objref_SMESH_2D_Algo): raise TypeError, "ViscousLayers2D are supported by 2D algorithms only" if not "ViscousLayers2D" in self.GetCompatibleHypothesis(): raise TypeError, "ViscousLayers2D are not supported by %s"%self.algo.GetName() - if ignoreEdges and isinstance( ignoreEdges[0], geomBuilder.GEOM._objref_GEOM_Object ): - ignoreEdges = [ self.mesh.geompyD.GetSubShapeID(self.mesh.geom, f) for f in ignoreEdges ] + if edges and not isinstance( edges, list ) and not isinstance( edges, tuple ): + edges = [edges] + if edges and isinstance( edges[0], geomBuilder.GEOM._objref_GEOM_Object ): + 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, ignoreEdges]) + [thickness, numberOfLayers, stretchFactor, edges, isEdgesToIgnore], + toAdd=False) hyp.SetTotalThickness(thickness) hyp.SetNumberLayers(numberOfLayers) hyp.SetStretchFactor(stretchFactor) - hyp.SetIgnoreEdges(ignoreEdges) + hyp.SetEdges(edges, isEdgesToIgnore) + self.mesh.AddHypothesis( hyp, self.geom ) return hyp - ## Transform a list of ether edges or tuples (edge, 1st_vertex_of_edge) + ## Transform a list of either edges or tuples (edge, 1st_vertex_of_edge) # into a list acceptable to SetReversedEdges() of some 1D hypotheses # @ingroup l3_hypos_1dhyps def ReversedEdgeIndices(self, reverseList): @@ -336,7 +374,7 @@ class Mesh_Algorithm: if e.GetShapeType() != geomBuilder.GEOM.EDGE or \ v.GetShapeType() != geomBuilder.GEOM.VERTEX: raise TypeError, "A list item must be a tuple (edge, 1st_vertex_of_edge)" - vFirst = FirstVertexOnCurve( e ) + vFirst = FirstVertexOnCurve( self.mesh, e ) tol = geompy.Tolerance( vFirst )[-1] if geompy.MinDistance( v, vFirst ) > 1.5*tol: resList.append( geompy.GetSubShapeID(self.mesh.geom, e ))