1 // SMESH SMESH : implementaion of SMESH idl descriptions
3 // Copyright (C) 2003 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
24 // File : StdMeshers_RadialPrism_3D.cxx
26 // Created : Fri Oct 20 11:37:07 2006
27 // Author : Edward AGAPOV (eap)
30 #include "StdMeshers_RadialPrism_3D.hxx"
32 #include "StdMeshers_ProjectionUtils.hxx"
33 #include "StdMeshers_NumberOfLayers.hxx"
34 #include "StdMeshers_LayerDistribution.hxx"
35 #include "StdMeshers_Prism_3D.hxx"
36 #include "StdMeshers_Regular_1D.hxx"
38 #include "SMDS_MeshNode.hxx"
39 #include "SMESHDS_SubMesh.hxx"
40 #include "SMESH_Gen.hxx"
41 #include "SMESH_Mesh.hxx"
42 #include "SMESH_MeshEditor.hxx"
43 #include "SMESH_MesherHelper.hxx"
44 #include "SMESH_subMesh.hxx"
46 #include "utilities.h"
48 #include <TopoDS_Solid.hxx>
49 #include <TopoDS_Shell.hxx>
50 #include <BRepTools.hxx>
51 #include <TopTools_ListIteratorOfListOfShape.hxx>
52 #include <BRepBuilderAPI_MakeEdge.hxx>
59 #define RETURN_BAD_RESULT(msg) { MESSAGE(msg); return false; }
60 #define gpXYZ(n) gp_XYZ(n->X(),n->Y(),n->Z())
62 typedef StdMeshers_ProjectionUtils TAssocTool;
64 //=======================================================================
65 //function : StdMeshers_RadialPrism_3D
67 //=======================================================================
69 StdMeshers_RadialPrism_3D::StdMeshers_RadialPrism_3D(int hypId, int studyId, SMESH_Gen* gen)
70 :SMESH_3D_Algo(hypId, studyId, gen)
72 _name = "RadialPrism_3D";
73 _shapeType = (1 << TopAbs_SOLID); // 1 bit per shape type
75 _compatibleHypothesis.push_back("LayerDistribution");
76 _compatibleHypothesis.push_back("NumberOfLayers");
78 myDistributionHypo = 0;
81 //================================================================================
85 //================================================================================
87 StdMeshers_RadialPrism_3D::~StdMeshers_RadialPrism_3D()
90 //=======================================================================
91 //function : CheckHypothesis
93 //=======================================================================
95 bool StdMeshers_RadialPrism_3D::CheckHypothesis(SMESH_Mesh& aMesh,
96 const TopoDS_Shape& aShape,
97 SMESH_Hypothesis::Hypothesis_Status& aStatus)
99 // check aShape that must have 2 shells
100 if ( TAssocTool::Count( aShape, TopAbs_SOLID, 0 ) != 1 ||
101 TAssocTool::Count( aShape, TopAbs_SHELL, 0 ) != 2 )
103 aStatus = HYP_BAD_GEOMETRY;
108 myDistributionHypo = 0;
110 list <const SMESHDS_Hypothesis * >::const_iterator itl;
112 const list <const SMESHDS_Hypothesis * >&hyps = GetUsedHypothesis(aMesh, aShape);
113 if ( hyps.size() == 0 )
115 aStatus = SMESH_Hypothesis::HYP_MISSING;
116 return false; // can't work with no hypothesis
119 if ( hyps.size() > 1 )
121 aStatus = SMESH_Hypothesis::HYP_ALREADY_EXIST;
125 const SMESHDS_Hypothesis *theHyp = hyps.front();
127 string hypName = theHyp->GetName();
129 if (hypName == "NumberOfLayers")
131 myNbLayerHypo = static_cast<const StdMeshers_NumberOfLayers *>(theHyp);
132 aStatus = SMESH_Hypothesis::HYP_OK;
135 if (hypName == "LayerDistribution")
137 myDistributionHypo = static_cast<const StdMeshers_LayerDistribution *>(theHyp);
138 aStatus = SMESH_Hypothesis::HYP_OK;
141 aStatus = SMESH_Hypothesis::HYP_INCOMPATIBLE;
145 //=======================================================================
148 //=======================================================================
150 bool StdMeshers_RadialPrism_3D::Compute(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape)
153 SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
155 myHelper = new SMESH_MesherHelper( aMesh );
156 myHelper->IsQuadraticSubMesh( aShape );
157 // to delete helper at exit from Compute()
158 std::auto_ptr<SMESH_MesherHelper> helperDeleter( myHelper );
161 TopoDS_Solid solid = TopoDS::Solid( aShape );
162 TopoDS_Shell outerShell = BRepTools::OuterShell( solid );
163 TopoDS_Shape innerShell;
165 for ( TopoDS_Iterator It (solid); It.More(); It.Next(), ++nbShells )
166 if ( !outerShell.IsSame( It.Value() ))
167 innerShell = It.Value();
169 RETURN_BAD_RESULT("Must be 2 shells");
171 // ----------------------------------
172 // Associate subshapes of the shells
173 // ----------------------------------
175 TAssocTool::TShapeShapeMap shape2ShapeMap;
176 if ( !TAssocTool::FindSubShapeAssociation( outerShell, &aMesh,
179 RETURN_BAD_RESULT("FindSubShapeAssociation failed");
181 // ------------------
183 // ------------------
185 TNode2ColumnMap node2columnMap;
186 myLayerPositions.clear();
188 for ( exp.Init( outerShell, TopAbs_FACE ); exp.More(); exp.Next() )
190 // Corresponding subshapes
191 TopoDS_Face outFace = TopoDS::Face( exp.Current() );
193 if ( !shape2ShapeMap.IsBound( outFace )) {
194 RETURN_BAD_RESULT("Association not found for face " << meshDS->ShapeToIndex( outFace ));
196 inFace = TopoDS::Face( shape2ShapeMap( outFace ));
199 // Find matching nodes of in and out faces
200 TNodeNodeMap nodeIn2OutMap;
201 if ( ! TAssocTool::FindMatchingNodesOnFaces( inFace, &aMesh, outFace, &aMesh,
202 shape2ShapeMap, nodeIn2OutMap ))
203 RETURN_BAD_RESULT("Different mesh on corresponding out and in faces: "
204 << meshDS->ShapeToIndex( outFace ) << " and "
205 << meshDS->ShapeToIndex( inFace ));
208 SMDS_ElemIteratorPtr faceIt = meshDS->MeshElements( inFace )->GetElements();
209 while ( faceIt->more() ) // loop on faces on inFace
211 const SMDS_MeshElement* face = faceIt->next();
212 if ( !face || face->GetType() != SMDSAbs_Face )
214 int nbNodes = face->NbNodes();
215 if ( face->IsQuadratic() )
218 // find node columns for each node
219 vector< const TNodeColumn* > columns( nbNodes );
220 for ( int i = 0; i < nbNodes; ++i )
222 const SMDS_MeshNode* n = face->GetNode( i );
223 TNode2ColumnMap::iterator n_col = node2columnMap.find( n );
224 if ( n_col != node2columnMap.end() )
225 columns[ i ] = & n_col->second;
227 columns[ i ] = makeNodeColumn( node2columnMap, n, nodeIn2OutMap[ n ] );
230 StdMeshers_Prism_3D::AddPrisms( columns, myHelper );
232 } // loop on faces of out shell
237 //================================================================================
239 * \brief Create a column of nodes from outNode to inNode
240 * \param n2ColMap - map of node columns to add a created column
241 * \param outNode - botton node of a column
242 * \param inNode - top node of a column
243 * \retval const TNodeColumn* - a new column pointer
245 //================================================================================
247 TNodeColumn* StdMeshers_RadialPrism_3D::makeNodeColumn( TNode2ColumnMap& n2ColMap,
248 const SMDS_MeshNode* outNode,
249 const SMDS_MeshNode* inNode)
251 SMESHDS_Mesh * meshDS = myHelper->GetMeshDS();
252 int shapeID = myHelper->GetSubShapeID();
254 if ( myLayerPositions.empty() )
255 computeLayerPositions( gpXYZ( inNode ), gpXYZ( outNode ));
257 int nbSegments = myLayerPositions.size() + 1;
259 TNode2ColumnMap::iterator n_col =
260 n2ColMap.insert( make_pair( outNode, TNodeColumn() )).first;
261 TNodeColumn & column = n_col->second;
262 column.resize( nbSegments + 1 );
263 column.front() = outNode;
264 column.back() = inNode;
266 gp_XYZ p1 = gpXYZ( outNode );
267 gp_XYZ p2 = gpXYZ( inNode );
268 for ( int z = 1; z < nbSegments; ++z )
270 double r = myLayerPositions[ z - 1 ];
271 gp_XYZ p = ( 1 - r ) * p1 + r * p2;
272 SMDS_MeshNode* n = meshDS->AddNode( p.X(), p.Y(), p.Z() );
273 meshDS->SetNodeInVolume( n, shapeID );
280 //================================================================================
281 //================================================================================
283 * \brief Class computing layers distribution using data of
284 * StdMeshers_LayerDistribution hypothesis
286 //================================================================================
287 //================================================================================
289 class TNodeDistributor: private StdMeshers_Regular_1D
291 list <const SMESHDS_Hypothesis *> myUsedHyps;
293 // -----------------------------------------------------------------------------
294 static TNodeDistributor* GetDistributor(SMESH_Mesh& aMesh)
296 const int myID = -1000;
297 map < int, SMESH_1D_Algo * > & algoMap = aMesh.GetGen()->_map1D_Algo;
298 map < int, SMESH_1D_Algo * >::iterator id_algo = algoMap.find( myID );
299 if ( id_algo == algoMap.end() )
300 return new TNodeDistributor( myID, 0, aMesh.GetGen() );
301 return static_cast< TNodeDistributor* >( id_algo->second );
303 // -----------------------------------------------------------------------------
304 bool Compute( vector< double > & positions,
308 const StdMeshers_LayerDistribution* hyp)
310 double len = pIn.Distance( pOut );
311 if ( len <= DBL_MIN ) RETURN_BAD_RESULT("Bad points");
313 if ( !hyp || !hyp->GetLayerDistribution() )
314 RETURN_BAD_RESULT("Bad StdMeshers_LayerDistribution hypothesis");
316 myUsedHyps.push_back( hyp->GetLayerDistribution() );
318 TopoDS_Edge edge = BRepBuilderAPI_MakeEdge( pIn, pOut );
320 SMESH_Hypothesis::Hypothesis_Status aStatus;
321 if ( !StdMeshers_Regular_1D::CheckHypothesis( aMesh, edge, aStatus ))
322 RETURN_BAD_RESULT("StdMeshers_Regular_1D::CheckHypothesis() failed with status "<<aStatus);
324 list< double > params;
325 if ( !StdMeshers_Regular_1D::computeInternalParameters( edge, params, false ))
326 RETURN_BAD_RESULT("StdMeshers_Regular_1D::computeInternalParameters() failed");
329 positions.reserve( params.size() );
330 for (list<double>::iterator itU = params.begin(); itU != params.end(); itU++)
331 positions.push_back( *itU / len );
335 // -----------------------------------------------------------------------------
336 TNodeDistributor( int hypId, int studyId, SMESH_Gen* gen)
337 : StdMeshers_Regular_1D( hypId, studyId, gen)
340 // -----------------------------------------------------------------------------
341 virtual const list <const SMESHDS_Hypothesis *> &
342 GetUsedHypothesis(SMESH_Mesh &, const TopoDS_Shape &, const bool)
346 // -----------------------------------------------------------------------------
349 //================================================================================
351 * \brief Compute positions of nodes between the internal and the external surfaces
352 * \retval bool - is a success
354 //================================================================================
356 bool StdMeshers_RadialPrism_3D::computeLayerPositions(gp_Pnt pIn, gp_Pnt pOut)
360 int nbSegments = myNbLayerHypo->GetNumberOfLayers();
361 myLayerPositions.resize( nbSegments - 1 );
362 for ( int z = 1; z < nbSegments; ++z )
363 myLayerPositions[ z - 1 ] = double( z )/ double( nbSegments );
366 if ( myDistributionHypo ) {
367 SMESH_Mesh * mesh = myHelper->GetMesh();
368 return TNodeDistributor::GetDistributor(*mesh)->Compute( myLayerPositions, pIn, pOut,
369 *mesh, myDistributionHypo );
371 RETURN_BAD_RESULT("Bad hypothesis");