1 // Copyright (C) 2007-2008 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 // SMESH SMESH : implementaion of SMESH idl descriptions
23 // File : StdMeshers_RadialPrism_3D.cxx
25 // Created : Fri Oct 20 11:37:07 2006
26 // Author : Edward AGAPOV (eap)
28 #include "StdMeshers_RadialPrism_3D.hxx"
30 #include "StdMeshers_ProjectionUtils.hxx"
31 #include "StdMeshers_NumberOfLayers.hxx"
32 #include "StdMeshers_LayerDistribution.hxx"
33 #include "StdMeshers_Prism_3D.hxx"
34 #include "StdMeshers_Regular_1D.hxx"
36 #include "SMDS_MeshNode.hxx"
37 #include "SMESHDS_SubMesh.hxx"
38 #include "SMESH_Gen.hxx"
39 #include "SMESH_Mesh.hxx"
40 #include "SMESH_MesherHelper.hxx"
41 #include "SMESH_subMesh.hxx"
43 #include "utilities.h"
45 #include <BRepAdaptor_Curve.hxx>
46 #include <BRepBuilderAPI_MakeEdge.hxx>
47 #include <BRepTools.hxx>
48 #include <TopExp_Explorer.hxx>
50 #include <TopoDS_Shell.hxx>
51 #include <TopoDS_Solid.hxx>
58 #define RETURN_BAD_RESULT(msg) { MESSAGE(")-: Error: " << msg); return false; }
59 #define gpXYZ(n) gp_XYZ(n->X(),n->Y(),n->Z())
61 typedef StdMeshers_ProjectionUtils TAssocTool;
63 //=======================================================================
64 //function : StdMeshers_RadialPrism_3D
66 //=======================================================================
68 StdMeshers_RadialPrism_3D::StdMeshers_RadialPrism_3D(int hypId, int studyId, SMESH_Gen* gen)
69 :SMESH_3D_Algo(hypId, studyId, gen)
71 _name = "RadialPrism_3D";
72 _shapeType = (1 << TopAbs_SOLID); // 1 bit per shape type
74 _compatibleHypothesis.push_back("LayerDistribution");
75 _compatibleHypothesis.push_back("NumberOfLayers");
77 myDistributionHypo = 0;
80 //================================================================================
84 //================================================================================
86 StdMeshers_RadialPrism_3D::~StdMeshers_RadialPrism_3D()
89 //=======================================================================
90 //function : CheckHypothesis
92 //=======================================================================
94 bool StdMeshers_RadialPrism_3D::CheckHypothesis(SMESH_Mesh& aMesh,
95 const TopoDS_Shape& aShape,
96 SMESH_Hypothesis::Hypothesis_Status& aStatus)
98 // 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 error(COMPERR_BAD_SHAPE, SMESH_Comment("Must be 2 shells but not ")<<nbShells);
171 // ----------------------------------
172 // Associate subshapes of the shells
173 // ----------------------------------
175 TAssocTool::TShapeShapeMap shape2ShapeMap;
176 if ( !TAssocTool::FindSubShapeAssociation( outerShell, &aMesh,
179 return error(COMPERR_BAD_SHAPE,"Topology of inner and outer shells seems different" );
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 error(SMESH_Comment("Corresponding inner face not found for face #" )
195 << meshDS->ShapeToIndex( outFace ));
197 inFace = TopoDS::Face( shape2ShapeMap( outFace ));
200 // Find matching nodes of in and out faces
201 TNodeNodeMap nodeIn2OutMap;
202 if ( ! TAssocTool::FindMatchingNodesOnFaces( inFace, &aMesh, outFace, &aMesh,
203 shape2ShapeMap, nodeIn2OutMap ))
204 return error(COMPERR_BAD_INPUT_MESH,SMESH_Comment("Mesh on faces #")
205 << meshDS->ShapeToIndex( outFace ) << " and "
206 << meshDS->ShapeToIndex( inFace ) << " seems different" );
210 SMDS_ElemIteratorPtr faceIt = meshDS->MeshElements( inFace )->GetElements();
211 while ( faceIt->more() ) // loop on faces on inFace
213 const SMDS_MeshElement* face = faceIt->next();
214 if ( !face || face->GetType() != SMDSAbs_Face )
216 int nbNodes = face->NbNodes();
217 if ( face->IsQuadratic() )
220 // find node columns for each node
221 vector< const TNodeColumn* > columns( nbNodes );
222 for ( int i = 0; i < nbNodes; ++i )
224 const SMDS_MeshNode* nIn = face->GetNode( i );
225 TNode2ColumnMap::iterator n_col = node2columnMap.find( nIn );
226 if ( n_col != node2columnMap.end() ) {
227 columns[ i ] = & n_col->second;
230 TNodeNodeMap::iterator nInOut = nodeIn2OutMap.find( nIn );
231 if ( nInOut == nodeIn2OutMap.end() )
232 RETURN_BAD_RESULT("No matching node for "<< nIn->GetID() <<
233 " in face "<< face->GetID());
234 columns[ i ] = makeNodeColumn( node2columnMap, nIn, nInOut->second );
238 StdMeshers_Prism_3D::AddPrisms( columns, myHelper );
240 } // loop on faces of out shell
245 //================================================================================
247 * \brief Create a column of nodes from outNode to inNode
248 * \param n2ColMap - map of node columns to add a created column
249 * \param outNode - botton node of a column
250 * \param inNode - top node of a column
251 * \retval const TNodeColumn* - a new column pointer
253 //================================================================================
255 TNodeColumn* StdMeshers_RadialPrism_3D::makeNodeColumn( TNode2ColumnMap& n2ColMap,
256 const SMDS_MeshNode* outNode,
257 const SMDS_MeshNode* inNode)
259 SMESHDS_Mesh * meshDS = myHelper->GetMeshDS();
260 int shapeID = myHelper->GetSubShapeID();
262 if ( myLayerPositions.empty() ) {
263 gp_Pnt pIn = gpXYZ( inNode ), pOut = gpXYZ( outNode );
264 computeLayerPositions( pIn, pOut );
266 int nbSegments = myLayerPositions.size() + 1;
268 TNode2ColumnMap::iterator n_col =
269 n2ColMap.insert( make_pair( outNode, TNodeColumn() )).first;
270 TNodeColumn & column = n_col->second;
271 column.resize( nbSegments + 1 );
272 column.front() = outNode;
273 column.back() = inNode;
275 gp_XYZ p1 = gpXYZ( outNode );
276 gp_XYZ p2 = gpXYZ( inNode );
277 for ( int z = 1; z < nbSegments; ++z )
279 double r = myLayerPositions[ z - 1 ];
280 gp_XYZ p = ( 1 - r ) * p1 + r * p2;
281 SMDS_MeshNode* n = meshDS->AddNode( p.X(), p.Y(), p.Z() );
282 meshDS->SetNodeInVolume( n, shapeID );
289 //================================================================================
290 //================================================================================
292 * \brief Class computing layers distribution using data of
293 * StdMeshers_LayerDistribution hypothesis
295 //================================================================================
296 //================================================================================
298 class TNodeDistributor: public StdMeshers_Regular_1D
300 list <const SMESHDS_Hypothesis *> myUsedHyps;
302 // -----------------------------------------------------------------------------
303 static TNodeDistributor* GetDistributor(SMESH_Mesh& aMesh)
305 const int myID = -1000;
306 map < int, SMESH_1D_Algo * > & algoMap = aMesh.GetGen()->_map1D_Algo;
307 map < int, SMESH_1D_Algo * >::iterator id_algo = algoMap.find( myID );
308 if ( id_algo == algoMap.end() )
309 return new TNodeDistributor( myID, 0, aMesh.GetGen() );
310 return static_cast< TNodeDistributor* >( id_algo->second );
312 // -----------------------------------------------------------------------------
313 bool Compute( vector< double > & positions,
317 const StdMeshers_LayerDistribution* hyp)
319 double len = pIn.Distance( pOut );
320 if ( len <= DBL_MIN ) return error("Too close points of inner and outer shells");
322 if ( !hyp || !hyp->GetLayerDistribution() )
323 return error( "Invalid LayerDistribution hypothesis");
325 myUsedHyps.push_back( hyp->GetLayerDistribution() );
327 TopoDS_Edge edge = BRepBuilderAPI_MakeEdge( pIn, pOut );
328 SMESH_Hypothesis::Hypothesis_Status aStatus;
329 if ( !StdMeshers_Regular_1D::CheckHypothesis( aMesh, edge, aStatus ))
330 return error( "StdMeshers_Regular_1D::CheckHypothesis() failed "
331 "with LayerDistribution hypothesis");
333 BRepAdaptor_Curve C3D(edge);
334 double f = C3D.FirstParameter(), l = C3D.LastParameter();
335 list< double > params;
336 if ( !StdMeshers_Regular_1D::computeInternalParameters( aMesh, C3D, len, f, l, params, false ))
337 return error("StdMeshers_Regular_1D failed to compute layers distribution");
340 positions.reserve( params.size() );
341 for (list<double>::iterator itU = params.begin(); itU != params.end(); itU++)
342 positions.push_back( *itU / len );
346 // -----------------------------------------------------------------------------
347 TNodeDistributor( int hypId, int studyId, SMESH_Gen* gen)
348 : StdMeshers_Regular_1D( hypId, studyId, gen)
351 // -----------------------------------------------------------------------------
352 virtual const list <const SMESHDS_Hypothesis *> &
353 GetUsedHypothesis(SMESH_Mesh &, const TopoDS_Shape &, const bool)
357 // -----------------------------------------------------------------------------
360 //================================================================================
362 * \brief Compute positions of nodes between the internal and the external surfaces
363 * \retval bool - is a success
365 //================================================================================
367 bool StdMeshers_RadialPrism_3D::computeLayerPositions(const gp_Pnt& pIn,
372 int nbSegments = myNbLayerHypo->GetNumberOfLayers();
373 myLayerPositions.resize( nbSegments - 1 );
374 for ( int z = 1; z < nbSegments; ++z )
375 myLayerPositions[ z - 1 ] = double( z )/ double( nbSegments );
378 if ( myDistributionHypo ) {
379 SMESH_Mesh * mesh = myHelper->GetMesh();
380 if ( !TNodeDistributor::GetDistributor(*mesh)->Compute( myLayerPositions, pIn, pOut,
381 *mesh, myDistributionHypo ))
383 error( TNodeDistributor::GetDistributor(*mesh)->GetComputeError() );
387 RETURN_BAD_RESULT("Bad hypothesis");