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 <BRepAdaptor_Curve.hxx>
52 #include <TopTools_ListIteratorOfListOfShape.hxx>
53 #include <BRepBuilderAPI_MakeEdge.hxx>
60 #define RETURN_BAD_RESULT(msg) { MESSAGE(msg); return false; }
61 #define gpXYZ(n) gp_XYZ(n->X(),n->Y(),n->Z())
63 typedef StdMeshers_ProjectionUtils TAssocTool;
65 //=======================================================================
66 //function : StdMeshers_RadialPrism_3D
68 //=======================================================================
70 StdMeshers_RadialPrism_3D::StdMeshers_RadialPrism_3D(int hypId, int studyId, SMESH_Gen* gen)
71 :SMESH_3D_Algo(hypId, studyId, gen)
73 _name = "RadialPrism_3D";
74 _shapeType = (1 << TopAbs_SOLID); // 1 bit per shape type
76 _compatibleHypothesis.push_back("LayerDistribution");
77 _compatibleHypothesis.push_back("NumberOfLayers");
79 myDistributionHypo = 0;
82 //================================================================================
86 //================================================================================
88 StdMeshers_RadialPrism_3D::~StdMeshers_RadialPrism_3D()
91 //=======================================================================
92 //function : CheckHypothesis
94 //=======================================================================
96 bool StdMeshers_RadialPrism_3D::CheckHypothesis(SMESH_Mesh& aMesh,
97 const TopoDS_Shape& aShape,
98 SMESH_Hypothesis::Hypothesis_Status& aStatus)
100 // check aShape that must have 2 shells
101 if ( TAssocTool::Count( aShape, TopAbs_SOLID, 0 ) != 1 ||
102 TAssocTool::Count( aShape, TopAbs_SHELL, 0 ) != 2 )
104 aStatus = HYP_BAD_GEOMETRY;
109 myDistributionHypo = 0;
111 list <const SMESHDS_Hypothesis * >::const_iterator itl;
113 const list <const SMESHDS_Hypothesis * >&hyps = GetUsedHypothesis(aMesh, aShape);
114 if ( hyps.size() == 0 )
116 aStatus = SMESH_Hypothesis::HYP_MISSING;
117 return false; // can't work with no hypothesis
120 if ( hyps.size() > 1 )
122 aStatus = SMESH_Hypothesis::HYP_ALREADY_EXIST;
126 const SMESHDS_Hypothesis *theHyp = hyps.front();
128 string hypName = theHyp->GetName();
130 if (hypName == "NumberOfLayers")
132 myNbLayerHypo = static_cast<const StdMeshers_NumberOfLayers *>(theHyp);
133 aStatus = SMESH_Hypothesis::HYP_OK;
136 if (hypName == "LayerDistribution")
138 myDistributionHypo = static_cast<const StdMeshers_LayerDistribution *>(theHyp);
139 aStatus = SMESH_Hypothesis::HYP_OK;
142 aStatus = SMESH_Hypothesis::HYP_INCOMPATIBLE;
146 //=======================================================================
149 //=======================================================================
151 bool StdMeshers_RadialPrism_3D::Compute(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape)
154 SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
156 myHelper = new SMESH_MesherHelper( aMesh );
157 myHelper->IsQuadraticSubMesh( aShape );
158 // to delete helper at exit from Compute()
159 std::auto_ptr<SMESH_MesherHelper> helperDeleter( myHelper );
162 TopoDS_Solid solid = TopoDS::Solid( aShape );
163 TopoDS_Shell outerShell = BRepTools::OuterShell( solid );
164 TopoDS_Shape innerShell;
166 for ( TopoDS_Iterator It (solid); It.More(); It.Next(), ++nbShells )
167 if ( !outerShell.IsSame( It.Value() ))
168 innerShell = It.Value();
170 RETURN_BAD_RESULT("Must be 2 shells");
172 // ----------------------------------
173 // Associate subshapes of the shells
174 // ----------------------------------
176 TAssocTool::TShapeShapeMap shape2ShapeMap;
177 if ( !TAssocTool::FindSubShapeAssociation( outerShell, &aMesh,
180 RETURN_BAD_RESULT("FindSubShapeAssociation failed");
182 // ------------------
184 // ------------------
186 TNode2ColumnMap node2columnMap;
187 myLayerPositions.clear();
189 for ( exp.Init( outerShell, TopAbs_FACE ); exp.More(); exp.Next() )
191 // Corresponding subshapes
192 TopoDS_Face outFace = TopoDS::Face( exp.Current() );
194 if ( !shape2ShapeMap.IsBound( outFace )) {
195 RETURN_BAD_RESULT("Association not found for face " << 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_BAD_RESULT("Different mesh on corresponding out and in faces: "
205 << meshDS->ShapeToIndex( outFace ) << " and "
206 << meshDS->ShapeToIndex( inFace ));
209 SMDS_ElemIteratorPtr faceIt = meshDS->MeshElements( inFace )->GetElements();
210 while ( faceIt->more() ) // loop on faces on inFace
212 const SMDS_MeshElement* face = faceIt->next();
213 if ( !face || face->GetType() != SMDSAbs_Face )
215 int nbNodes = face->NbNodes();
216 if ( face->IsQuadratic() )
219 // find node columns for each node
220 vector< const TNodeColumn* > columns( nbNodes );
221 for ( int i = 0; i < nbNodes; ++i )
223 const SMDS_MeshNode* n = face->GetNode( i );
224 TNode2ColumnMap::iterator n_col = node2columnMap.find( n );
225 if ( n_col != node2columnMap.end() )
226 columns[ i ] = & n_col->second;
228 columns[ i ] = makeNodeColumn( node2columnMap, n, nodeIn2OutMap[ n ] );
231 StdMeshers_Prism_3D::AddPrisms( columns, myHelper );
233 } // loop on faces of out shell
238 //================================================================================
240 * \brief Create a column of nodes from outNode to inNode
241 * \param n2ColMap - map of node columns to add a created column
242 * \param outNode - botton node of a column
243 * \param inNode - top node of a column
244 * \retval const TNodeColumn* - a new column pointer
246 //================================================================================
248 TNodeColumn* StdMeshers_RadialPrism_3D::makeNodeColumn( TNode2ColumnMap& n2ColMap,
249 const SMDS_MeshNode* outNode,
250 const SMDS_MeshNode* inNode)
252 SMESHDS_Mesh * meshDS = myHelper->GetMeshDS();
253 int shapeID = myHelper->GetSubShapeID();
255 if ( myLayerPositions.empty() )
256 computeLayerPositions( gpXYZ( inNode ), gpXYZ( outNode ));
258 int nbSegments = myLayerPositions.size() + 1;
260 TNode2ColumnMap::iterator n_col =
261 n2ColMap.insert( make_pair( outNode, TNodeColumn() )).first;
262 TNodeColumn & column = n_col->second;
263 column.resize( nbSegments + 1 );
264 column.front() = outNode;
265 column.back() = inNode;
267 gp_XYZ p1 = gpXYZ( outNode );
268 gp_XYZ p2 = gpXYZ( inNode );
269 for ( int z = 1; z < nbSegments; ++z )
271 double r = myLayerPositions[ z - 1 ];
272 gp_XYZ p = ( 1 - r ) * p1 + r * p2;
273 SMDS_MeshNode* n = meshDS->AddNode( p.X(), p.Y(), p.Z() );
274 meshDS->SetNodeInVolume( n, shapeID );
281 //================================================================================
282 //================================================================================
284 * \brief Class computing layers distribution using data of
285 * StdMeshers_LayerDistribution hypothesis
287 //================================================================================
288 //================================================================================
290 class TNodeDistributor: private StdMeshers_Regular_1D
292 list <const SMESHDS_Hypothesis *> myUsedHyps;
294 // -----------------------------------------------------------------------------
295 static TNodeDistributor* GetDistributor(SMESH_Mesh& aMesh)
297 const int myID = -1000;
298 map < int, SMESH_1D_Algo * > & algoMap = aMesh.GetGen()->_map1D_Algo;
299 map < int, SMESH_1D_Algo * >::iterator id_algo = algoMap.find( myID );
300 if ( id_algo == algoMap.end() )
301 return new TNodeDistributor( myID, 0, aMesh.GetGen() );
302 return static_cast< TNodeDistributor* >( id_algo->second );
304 // -----------------------------------------------------------------------------
305 bool Compute( vector< double > & positions,
309 const StdMeshers_LayerDistribution* hyp)
311 double len = pIn.Distance( pOut );
312 if ( len <= DBL_MIN ) RETURN_BAD_RESULT("Bad points");
314 if ( !hyp || !hyp->GetLayerDistribution() )
315 RETURN_BAD_RESULT("Bad StdMeshers_LayerDistribution hypothesis");
317 myUsedHyps.push_back( hyp->GetLayerDistribution() );
319 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 BRepAdaptor_Curve C3D(edge);
325 double f = C3D.FirstParameter(), l = C3D.LastParameter();
326 list< double > params;
327 if ( !StdMeshers_Regular_1D::computeInternalParameters( C3D, len, f, l, params, false ))
328 RETURN_BAD_RESULT("StdMeshers_Regular_1D::computeInternalParameters() failed");
331 positions.reserve( params.size() );
332 for (list<double>::iterator itU = params.begin(); itU != params.end(); itU++)
333 positions.push_back( *itU / len );
337 // -----------------------------------------------------------------------------
338 TNodeDistributor( int hypId, int studyId, SMESH_Gen* gen)
339 : StdMeshers_Regular_1D( hypId, studyId, gen)
342 // -----------------------------------------------------------------------------
343 virtual const list <const SMESHDS_Hypothesis *> &
344 GetUsedHypothesis(SMESH_Mesh &, const TopoDS_Shape &, const bool)
348 // -----------------------------------------------------------------------------
351 //================================================================================
353 * \brief Compute positions of nodes between the internal and the external surfaces
354 * \retval bool - is a success
356 //================================================================================
358 bool StdMeshers_RadialPrism_3D::computeLayerPositions(gp_Pnt pIn, gp_Pnt pOut)
362 int nbSegments = myNbLayerHypo->GetNumberOfLayers();
363 myLayerPositions.resize( nbSegments - 1 );
364 for ( int z = 1; z < nbSegments; ++z )
365 myLayerPositions[ z - 1 ] = double( z )/ double( nbSegments );
368 if ( myDistributionHypo ) {
369 SMESH_Mesh * mesh = myHelper->GetMesh();
370 return TNodeDistributor::GetDistributor(*mesh)->Compute( myLayerPositions, pIn, pOut,
371 *mesh, myDistributionHypo );
373 RETURN_BAD_RESULT("Bad hypothesis");