1 // Copyright (C) 2007-2012 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
22 // File : StdMeshers_Projection_1D2D.cxx
24 // Author : Edward AGAPOV (eap)
26 #include "StdMeshers_Projection_1D2D.hxx"
28 #include "SMESH_Gen.hxx"
29 #include "SMESH_MesherHelper.hxx"
30 #include "SMESH_subMesh.hxx"
31 #include "SMESH_subMeshEventListener.hxx"
32 #include "StdMeshers_FaceSide.hxx"
33 #include "StdMeshers_ProjectionSource2D.hxx"
34 #include "StdMeshers_ProjectionUtils.hxx"
37 #include <TopExp_Explorer.hxx>
43 // --------------------------------------------------------------------------------
45 * \brief an event listener updating submehses of EDGEs according to
46 * events on the target FACE submesh
48 struct EventProparatorToEdges : public SMESH_subMeshEventListener
50 EventProparatorToEdges(): SMESH_subMeshEventListener(/*isDeletable=*/false,
51 "Projection_1D2D::EventProparatorToEdges")
53 static EventProparatorToEdges* Instance() { static EventProparatorToEdges E; return &E; }
55 static void Set(SMESH_subMesh* faceSubMesh)
57 SMESH_subMeshEventListenerData* edgeSubMeshes =
58 new SMESH_subMeshEventListenerData(/*isDeletable=*/true);
59 SMESH_Mesh* mesh = faceSubMesh->GetFather();
60 TopExp_Explorer eExp( faceSubMesh->GetSubShape(), TopAbs_EDGE );
61 for ( ; eExp.More(); eExp.Next() )
62 edgeSubMeshes->mySubMeshes.push_back( mesh->GetSubMesh( eExp.Current() ));
65 faceSubMesh->SetEventListener( Instance(), edgeSubMeshes, faceSubMesh );
68 // --------------------------------------------------------------------------------
70 * \brief Structure used to temporary remove EventProparatorToEdges from faceSubMesh
71 * in order to prevent propagation of CLEAN event from FACE to EDGEs during
72 * StdMeshers_Projection_1D2D::Compute(). The CLEAN event is emmited by Pattern mapper
73 * and causes removal of faces generated on adjacent FACEs.
75 struct UnsetterOfEventProparatorToEdges
77 SMESH_subMesh* _faceSubMesh;
78 UnsetterOfEventProparatorToEdges( SMESH_subMesh* faceSubMesh ):_faceSubMesh(faceSubMesh)
80 faceSubMesh->DeleteEventListener( EventProparatorToEdges::Instance() );
82 ~UnsetterOfEventProparatorToEdges()
84 EventProparatorToEdges::Set(_faceSubMesh);
89 //=======================================================================
90 //function : StdMeshers_Projection_1D2D
92 //=======================================================================
94 StdMeshers_Projection_1D2D::StdMeshers_Projection_1D2D(int hypId, int studyId, SMESH_Gen* gen)
95 :StdMeshers_Projection_2D(hypId, studyId, gen)
97 _name = "Projection_1D2D";
98 _requireDiscreteBoundary = false;
99 _supportSubmeshes = true;
102 //=======================================================================
105 //=======================================================================
107 bool StdMeshers_Projection_1D2D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape& theShape)
109 UnsetterOfEventProparatorToEdges eventBarrier( theMesh.GetSubMesh( theShape ));
111 if ( !StdMeshers_Projection_2D::Compute(theMesh, theShape))
114 SMESHDS_Mesh * meshDS = theMesh.GetMeshDS();
116 SMESHDS_SubMesh * faceSubMesh = meshDS->MeshElements( theShape );
117 if ( !faceSubMesh || faceSubMesh->NbElements() == 0 ) return false;
118 _quadraticMesh = faceSubMesh->GetElements()->next()->IsQuadratic();
120 SMESH_MesherHelper helper( theMesh );
121 helper.SetSubShape( theShape );
123 TopoDS_Face F = TopoDS::Face( theShape );
125 TSideVector wires = StdMeshers_FaceSide::GetFaceWires( F, theMesh,
126 /*ignoreMediumNodes=*/false, err);
127 if ( err && !err->IsOK() )
130 for ( size_t iWire = 0; iWire < wires.size(); ++iWire )
132 vector<const SMDS_MeshNode*> nodes = wires[ iWire ]->GetOrderedNodes();
134 return error("Wrong nodes on a wire");
136 // check that all nodes are shared by faces generated on F
137 for ( size_t i = 0; i < nodes.size(); ++i )
139 SMDS_ElemIteratorPtr fIt = nodes[i]->GetInverseElementIterator(SMDSAbs_Face);
140 bool faceFound = false;
141 while ( !faceFound && fIt->more() )
142 faceFound = ( helper.GetSubShapeID() == fIt->next()->getshapeId() );
144 return error("The existing 1D mesh mismatches the generated 2D mesh");
147 const bool checkExisting = ( wires[ iWire ]->NbSegments() || helper.HasSeam() );
149 if ( _quadraticMesh )
151 for ( size_t i = 2; i < nodes.size(); i += 2 )
153 if ( checkExisting && meshDS->FindEdge( nodes[i-2], nodes[i], nodes[i-1]))
155 SMDS_MeshElement* e = meshDS->AddEdge( nodes[i-2], nodes[i], nodes[i-1] );
156 meshDS->SetMeshElementOnShape( e, nodes[i-1]->getshapeId() );
161 int edgeID = meshDS->ShapeToIndex( wires[ iWire ]->Edge(0) );
162 for ( size_t i = 1; i < nodes.size(); ++i )
164 if ( checkExisting && meshDS->FindEdge( nodes[i-1], nodes[i]))
166 SMDS_MeshElement* e = meshDS->AddEdge( nodes[i-1], nodes[i] );
167 if ( nodes[i-1]->getshapeId() != edgeID &&
168 nodes[i ]->getshapeId() != edgeID )
170 edgeID = helper.GetMediumPos( nodes[i-1], nodes[i] ).first;
171 if ( edgeID < 1 ) edgeID = helper.GetSubShapeID();
173 meshDS->SetMeshElementOnShape( e, edgeID );
181 //=======================================================================
182 //function : Evaluate
184 //=======================================================================
186 bool StdMeshers_Projection_1D2D::Evaluate(SMESH_Mesh& theMesh,
187 const TopoDS_Shape& theShape,
188 MapShapeNbElems& aResMap)
190 if ( !StdMeshers_Projection_2D::Evaluate(theMesh,theShape,aResMap))
193 TopoDS_Shape srcFace = _sourceHypo->GetSourceFace();
194 SMESH_Mesh * srcMesh = _sourceHypo->GetSourceMesh();
195 if ( !srcMesh ) srcMesh = & theMesh;
196 SMESH_subMesh* srcFaceSM = srcMesh->GetSubMesh( srcFace );
198 typedef StdMeshers_ProjectionUtils SPU;
199 SPU::TShapeShapeMap shape2ShapeMap;
200 SPU::InitVertexAssociation( _sourceHypo, shape2ShapeMap );
201 if ( !SPU::FindSubShapeAssociation( theShape, &theMesh, srcFace, srcMesh, shape2ShapeMap))
202 return error(COMPERR_BAD_SHAPE,"Topology of source and target faces seems different" );
204 MapShapeNbElems srcResMap;
205 if ( !srcFaceSM->IsMeshComputed() )
206 _gen->Evaluate( *srcMesh, srcFace, srcResMap);
208 SMESH_subMeshIteratorPtr smIt = srcFaceSM->getDependsOnIterator(/*includeSelf=*/false,
209 /*complexShapeFirst=*/true);
210 while ( smIt->more() )
212 SMESH_subMesh* srcSM = smIt->next();
213 TopAbs_ShapeEnum shapeType = srcSM->GetSubShape().ShapeType();
214 if ( shapeType == TopAbs_EDGE )
216 std::vector<int> aVec;
217 SMESHDS_SubMesh* srcSubMeshDS = srcSM->GetSubMeshDS();
218 if ( srcSubMeshDS && srcSubMeshDS->NbElements() )
220 aVec.resize(SMDSEntity_Last, 0);
221 SMDS_ElemIteratorPtr eIt = srcSubMeshDS->GetElements();
222 _quadraticMesh = ( eIt->more() && eIt->next()->IsQuadratic() );
224 aVec[SMDSEntity_Node] = srcSubMeshDS->NbNodes();
225 aVec[_quadraticMesh ? SMDSEntity_Quad_Edge : SMDSEntity_Edge] = srcSubMeshDS->NbElements();
229 if ( srcResMap.empty() )
230 if ( !_gen->Evaluate( *srcMesh, srcSM->GetSubShape(), srcResMap ))
231 return error(COMPERR_BAD_INPUT_MESH,"Source mesh not evaluatable");
232 aVec = srcResMap[ srcSM ];
234 return error(COMPERR_BAD_INPUT_MESH,"Source mesh is wrongly evaluated");
236 TopoDS_Shape tgtEdge = shape2ShapeMap( srcSM->GetSubShape(), /*isSrc=*/true );
237 SMESH_subMesh* tgtSM = theMesh.GetSubMesh( tgtEdge );
238 aResMap.insert(std::make_pair(tgtSM,aVec));
240 if ( shapeType == TopAbs_VERTEX ) break;
246 //=======================================================================
247 //function : SetEventListener
248 //purpose : Sets a default event listener to submesh of the source face.
249 // faceSubMesh - submesh where algo is set
250 // After being set, event listener is notified on each event of a submesh.
251 // This method is called when a submesh gets HYP_OK algo_state.
252 // Arranges that CLEAN event is translated from source submesh to
253 // the faceSubMesh submesh.
254 //=======================================================================
256 void StdMeshers_Projection_1D2D::SetEventListener(SMESH_subMesh* faceSubMesh)
258 // set a listener of events on a source submesh
259 StdMeshers_Projection_2D::SetEventListener(faceSubMesh);
261 // set a listener to the target FACE submesh in order to update submehses
262 // of EDGEs according to events on the target FACE submesh
263 EventProparatorToEdges::Set( faceSubMesh );