src/INTERP_KERNEL/Polyhedron3D2DIntersectorP0P0.txx

   1 // Copyright (C) 2007-2013  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19 #ifndef __POLYHEDRON3D2DINTERSECTORP0P0_TXX__
  20 #define __POLYHEDRON3D2DINTERSECTORP0P0_TXX__
  21
  22 #include "Polyhedron3D2DIntersectorP0P0.hxx"
  23 #include "Intersector3DP0P0.txx"
  24 #include "MeshUtils.hxx"
  25
  26 #include "SplitterTetra.txx"
  27
  28 namespace INTERP_KERNEL
  29 {
  30
  31   /**
  32    * Constructor creating object from target cell global number
  33    * The constructor first calculates the necessary nodes,
  34    * (depending on the splitting policy) and then splits the hexahedron into
  35    * tetrahedra, placing these in the internal vector _tetra.
  36    *
  37    * @param targetMesh  mesh containing the target elements
  38    * @param srcMesh     mesh containing the source elements
  39    * @param policy      splitting policy to be used
  40    */
  41   template<class MyMeshType, class MyMatrixType>
  42   Polyhedron3D2DIntersectorP0P0<MyMeshType,MyMatrixType>::Polyhedron3D2DIntersectorP0P0(const MyMeshType& targetMesh,
  43                                                                                         const MyMeshType& srcMesh,
  44                                                                                         const double dimCaracteristic,
  45                                                                                         const double precision,
  46                                                                                         DuplicateFacesType& intersectFaces,
  47                                                                                         SplittingPolicy policy)
  48     : Intersector3DP0P0<MyMeshType,MyMatrixType>(targetMesh,srcMesh),
  49       _split(targetMesh,srcMesh,policy),
  50       _dim_caracteristic(dimCaracteristic),
  51       _precision(precision),
  52       _intersect_faces(intersectFaces)
  53   {
  54   }
  55
  56   /**
  57    * Destructor.
  58    * Liberates the SplitterTetra objects and potential sub-node points that have been allocated.
  59    *
  60    */
  61   template<class MyMeshType, class MyMatrixType>
  62   Polyhedron3D2DIntersectorP0P0<MyMeshType,MyMatrixType>::~Polyhedron3D2DIntersectorP0P0()
  63   {
  64     releaseArrays();
  65   }
  66
  67   template<class MyMeshType, class MyMatrixType>
  68   void Polyhedron3D2DIntersectorP0P0<MyMeshType,MyMatrixType>::releaseArrays()
  69   {
  70     for(typename std::vector< SplitterTetra<MyMeshType>* >::iterator iter = _tetra.begin(); iter != _tetra.end(); ++iter)
  71       delete *iter;
  72     _split.releaseArrays();
  73     _tetra.clear();
  74   }
  75
  76   /**
  77    * Calculates the volume of intersection of an element in the source mesh and the target element
  78    * represented by the object.
  79    * The calculation is performed by calling the corresponding method for
  80    * each SplitterTetra object created by the splitting.
  81    *
  82    * @param targetCell in C mode.
  83    * @param srcCells in C mode.
  84    *
  85    */
  86   template<class MyMeshType, class MyMatrixType>
  87   void Polyhedron3D2DIntersectorP0P0<MyMeshType,MyMatrixType>::intersectCells(ConnType targetCell,
  88                                                                               const std::vector<ConnType>& srcCells,
  89                                                                               MyMatrixType& matrix)
  90   {
  91     int nbOfNodesT=Intersector3D<MyMeshType,MyMatrixType>::_target_mesh.getNumberOfNodesOfElement(OTT<ConnType,numPol>::indFC(targetCell));
  92     releaseArrays();
  93     _split.splitTargetCell(targetCell,nbOfNodesT,_tetra);
  94
  95     for(typename std::vector<ConnType>::const_iterator iterCellS=srcCells.begin();iterCellS!=srcCells.end();iterCellS++)
  96       {
  97         double surface = 0.;
  98         std::multiset<TriangleFaceKey> listOfTetraFacesTreated;
  99         std::set<TriangleFaceKey> listOfTetraFacesColinear;
 100
 101         // calculate the coordinates of the nodes
 102         typename MyMeshType::MyConnType cellSrc = *iterCellS;
 103         int cellSrcIdx = OTT<ConnType,numPol>::indFC(cellSrc);
 104         NormalizedCellType normCellType=Intersector3D<MyMeshType,MyMatrixType>::_src_mesh.getTypeOfElement(cellSrcIdx);
 105         const CellModel& cellModelCell=CellModel::GetCellModel(normCellType);
 106         const MyMeshType& src_mesh = Intersector3D<MyMeshType,MyMatrixType>::_src_mesh;
 107         unsigned nbOfNodes4Type=cellModelCell.isDynamic() ? src_mesh.getNumberOfNodesOfElement(cellSrcIdx) : cellModelCell.getNumberOfNodes();
 108         int *polyNodes=new int[nbOfNodes4Type];
 109         double **polyCoords = new double*[nbOfNodes4Type];
 110         for(int i = 0;i<(int)nbOfNodes4Type;++i)
 111           {
 112             // we could store mapping local -> global numbers too, but not sure it is worth it
 113             const int globalNodeNum = getGlobalNumberOfNode(i, OTT<ConnType,numPol>::indFC(*iterCellS), src_mesh);
 114             polyNodes[i]=globalNodeNum;
 115             polyCoords[i] = const_cast<double*>(src_mesh.getCoordinatesPtr()+MyMeshType::MY_SPACEDIM*globalNodeNum);
 116           }
 117
 118         for(typename std::vector<SplitterTetra<MyMeshType>*>::iterator iter = _tetra.begin(); iter != _tetra.end(); ++iter)
 119             surface += (*iter)->intersectSourceFace(normCellType,
 120                                                     nbOfNodes4Type,
 121                                                     polyNodes,
 122                                                     polyCoords,
 123                                                     _dim_caracteristic,
 124                                                     _precision,
 125                                                     listOfTetraFacesTreated,
 126                                                     listOfTetraFacesColinear);
 127
 128         if(surface!=0.) {
 129
 130           matrix[targetCell].insert(std::make_pair(cellSrcIdx, surface));
 131
 132           bool isSrcFaceColinearWithFaceOfTetraTargetCell = false;
 133           std::set<TriangleFaceKey>::iterator iter;
 134           for (iter = listOfTetraFacesColinear.begin(); iter != listOfTetraFacesColinear.end(); ++iter)
 135             {
 136               if (listOfTetraFacesTreated.count(*iter) != 1)
 137                 {
 138                   isSrcFaceColinearWithFaceOfTetraTargetCell = false;
 139                   break;
 140                 }
 141               else
 142                 {
 143                   isSrcFaceColinearWithFaceOfTetraTargetCell = true;
 144                 }
 145             }
 146
 147           if (isSrcFaceColinearWithFaceOfTetraTargetCell)
 148             {
 149               DuplicateFacesType::iterator intersectFacesIter = _intersect_faces.find(cellSrcIdx);
 150               if (intersectFacesIter != _intersect_faces.end())
 151                 {
 152                   intersectFacesIter->second.insert(targetCell);
 153                 }
 154               else
 155                 {
 156                   std::set<int> targetCellSet;
 157                   targetCellSet.insert(targetCell);
 158                   _intersect_faces.insert(std::make_pair(cellSrcIdx, targetCellSet));
 159                 }
 160
 161             }
 162
 163         }
 164
 165         delete[] polyNodes;
 166         delete[] polyCoords;
 167
 168       }
 169     _split.releaseArrays();
 170   }
 171 }
 172
 173 #endif