src/medtool/src/INTERP_KERNEL/PolyhedronIntersectorP0P1.txx

   1 // Copyright (C) 2007-2015  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, or (at your option) any later version.
   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 // Author : Anthony Geay (CEA/DEN)
  20 #ifndef __POLYHEDRONINTERSECTORP0P1_TXX__
  21 #define __POLYHEDRONINTERSECTORP0P1_TXX__
  22
  23 #include "PolyhedronIntersectorP0P1.hxx"
  24 #include "Intersector3DP0P1.txx"
  25 #include "MeshUtils.hxx"
  26
  27 #include "SplitterTetra.txx"
  28
  29 namespace INTERP_KERNEL
  30 {
  31
  32   /**
  33    * Constructor creating object from target cell global number
  34    * The constructor first calculates the necessary nodes,
  35    * (depending on the splitting policy) and then splits the hexahedron into
  36    * tetrahedra, placing these in the internal vector _tetra.
  37    *
  38    * @param targetMesh  mesh containing the target elements
  39    * @param srcMesh     mesh containing the source elements
  40    * @param policy      splitting policy to be used
  41    */
  42   template<class MyMeshType, class MyMatrix>
  43   PolyhedronIntersectorP0P1<MyMeshType,MyMatrix>::PolyhedronIntersectorP0P1(const MyMeshType& targetMesh, const MyMeshType& srcMesh, SplittingPolicy policy):Intersector3DP0P1<MyMeshType,MyMatrix>(targetMesh,srcMesh),_split(targetMesh,srcMesh,policy)
  44   {
  45   }
  46
  47   /**
  48    * Destructor.
  49    * Liberates the SplitterTetra objects and potential sub-node points that have been allocated.
  50    *
  51    */
  52   template<class MyMeshType, class MyMatrix>
  53   PolyhedronIntersectorP0P1<MyMeshType,MyMatrix>::~PolyhedronIntersectorP0P1()
  54   {
  55     releaseArrays();
  56   }
  57
  58   template<class MyMeshType, class MyMatrix>
  59   void PolyhedronIntersectorP0P1<MyMeshType,MyMatrix>::releaseArrays()
  60   {
  61     for(typename std::vector< SplitterTetra<MyMeshType>* >::iterator iter = _tetra.begin(); iter != _tetra.end(); ++iter)
  62       delete *iter;
  63     _split.releaseArrays();
  64     _tetra.clear();
  65   }
  66
  67   /**
  68    * Calculates the volume of intersection of an element in the source mesh and the target element
  69    * represented by the object.
  70    * The calculation is performed by calling the corresponding method for
  71    * each SplitterTetra object created by the splitting.
  72    *
  73    * @param targetCell in C mode.
  74    * @param srcCells in C mode.
  75    *
  76    */
  77   template<class MyMeshType, class MyMatrix>
  78   void PolyhedronIntersectorP0P1<MyMeshType,MyMatrix>::intersectCells(ConnType targetCell, const std::vector<ConnType>& srcCells, MyMatrix& res)
  79   {
  80     SplitterTetra<MyMeshType>* subTetras[24];
  81     releaseArrays();
  82     _split.splitTargetCell2(targetCell,_tetra);
  83     for(typename std::vector<ConnType>::const_iterator iterCellS=srcCells.begin();iterCellS!=srcCells.end();iterCellS++)
  84       {
  85         for(typename std::vector<SplitterTetra<MyMeshType>*>::iterator iter = _tetra.begin(); iter != _tetra.end(); ++iter)
  86           {
  87             (*iter)->splitIntoDualCells(subTetras);
  88             for(int i=0;i<24;i++)
  89               {
  90                 SplitterTetra<MyMeshType> *tmp=subTetras[i];
  91                 double volume = tmp->intersectSourceCell(*iterCellS);
  92                 if(volume!=0.)
  93                   {
  94                     int targetNodeId(tmp->getId(0));
  95                     if(targetNodeId<0)
  96                       {
  97                         std::ostringstream oss; oss << "PolyhedronIntersectorP0P1::intersectCells : On target cell #" <<  targetCell << " the splitting into tetra4 leads to the creation of an additional point that interacts with source cell Id #" << *iterCellS << " !";
  98                         throw INTERP_KERNEL::Exception(oss.str().c_str());
  99                       }
 100                     typename MyMatrix::value_type& resRow=res[targetNodeId];
 101                     typename MyMatrix::value_type::const_iterator iterRes=resRow.find(OTT<ConnType,numPol>::indFC(*iterCellS));
 102                     if(iterRes==resRow.end())
 103                       resRow.insert(std::make_pair(OTT<ConnType,numPol>::indFC(*iterCellS),volume));
 104                     else
 105                       {
 106                         double val=(*iterRes).second+volume;
 107                         resRow.erase(OTT<ConnType,numPol>::indFC(*iterCellS));
 108                         resRow.insert(std::make_pair(OTT<ConnType,numPol>::indFC(*iterCellS),val));
 109                       }
 110                   }
 111                 delete tmp;
 112               }
 113           }
 114       }
 115   }
 116 }
 117
 118 #endif