src/INTERP_KERNEL/PointLocator3DIntersectorP1P1.txx

   1 // Copyright (C) 2007-2020  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 __POINTLOCATOR3DINTERSECTORP1P1_TXX__
  21 #define __POINTLOCATOR3DINTERSECTORP1P1_TXX__
  22
  23 #include "PointLocator3DIntersectorP1P1.hxx"
  24 #include "Intersector3DP1P1.txx"
  25 #include "MeshUtils.hxx"
  26
  27 namespace INTERP_KERNEL
  28 {
  29
  30   /**
  31    * Constructor creating object from target cell global number
  32    *
  33    * @param targetMesh  mesh containing the target elements
  34    * @param srcMesh     mesh containing the source elements
  35    */
  36   template<class MyMeshType, class MyMatrix>
  37   PointLocator3DIntersectorP1P1<MyMeshType,MyMatrix>::PointLocator3DIntersectorP1P1(const MyMeshType& targetMesh, const MyMeshType& srcMesh, double precision):
  38     Intersector3DP1P1<MyMeshType,MyMatrix>(targetMesh,srcMesh),_precision(precision)
  39   {
  40   }
  41
  42   template<class MyMeshType, class MyMatrix>
  43   PointLocator3DIntersectorP1P1<MyMeshType,MyMatrix>::~PointLocator3DIntersectorP1P1()
  44   {
  45   }
  46
  47   /**
  48    * @param targetCell in C mode.
  49    * @param srcCells in C mode.
  50    */
  51   template<class MyMeshType, class MyMatrix>
  52   void PointLocator3DIntersectorP1P1<MyMeshType,MyMatrix>::intersectCells(ConnType targetCell, const std::vector<ConnType>& srcCells, MyMatrix& res)
  53   {
  54     std::vector<double> CoordsT;
  55     Intersector3DP1P1<MyMeshType,MyMatrix>::getRealTargetCoordinates(OTT<ConnType,numPol>::indFC(targetCell),CoordsT);
  56     std::size_t nbOfNodesT=CoordsT.size()/SPACEDIM;
  57     const double *coordsS=Intersector3DP1P1<MyMeshType,MyMatrix>::_src_mesh.getCoordinatesPtr();
  58     for(typename std::vector<ConnType>::const_iterator iterCellS=srcCells.begin();iterCellS!=srcCells.end();iterCellS++)
  59       {
  60         NormalizedCellType tS=Intersector3DP1P1<MyMeshType,MyMatrix>::_src_mesh.getTypeOfElement(OTT<ConnType,numPol>::indFC(*iterCellS));
  61         if(tS!=NORM_TETRA4)
  62           throw INTERP_KERNEL::Exception("Invalid source cell detected for meshdim==3. Only TETRA4 supported !");
  63         const CellModel& cmTypeS=CellModel::GetCellModel(tS);
  64         const ConnType *startOfCellNodeConnT=Intersector3DP1P1<MyMeshType,MyMatrix>::getStartConnOfTargetCell(targetCell);
  65         for(std::size_t nodeIdT=0;nodeIdT<nbOfNodesT;nodeIdT++)
  66           {
  67             typename MyMatrix::value_type& resRow=res[OTT<ConnType,numPol>::ind2C(startOfCellNodeConnT[nodeIdT])];
  68             std::vector<ConnType> connOfCurCellS;
  69             Intersector3DP1P1<MyMeshType,MyMatrix>::getConnOfSourceCell(OTT<ConnType,numPol>::indFC(*iterCellS),connOfCurCellS);
  70             if( PointLocatorAlgos<MyMeshType>::isElementContainsPointAlg3D(&CoordsT[nodeIdT*SPACEDIM],&connOfCurCellS[0],ToConnType(connOfCurCellS.size()),coordsS,cmTypeS,_precision) )
  71               {
  72                 double resLoc[4];
  73                 std::vector<double> localCoordsS;
  74                 Intersector3DP1P1<MyMeshType,MyMatrix>::getRealSourceCoordinates(OTT<ConnType,numPol>::indFC(*iterCellS),localCoordsS);
  75                 std::vector<const double*> eap(4);
  76                 eap[0]=&localCoordsS[0]; eap[1]=&localCoordsS[3]; eap[2]=&localCoordsS[6]; eap[3]=&localCoordsS[9];
  77                 barycentric_coords(eap,&CoordsT[nodeIdT*SPACEDIM],resLoc);
  78                 const ConnType *startOfCellNodeConnS=Intersector3DP1P1<MyMeshType,MyMatrix>::getStartConnOfSourceCell(*iterCellS);
  79                 for(int nodeIdS=0;nodeIdS<4;nodeIdS++)
  80                   {
  81                     if(fabs(resLoc[nodeIdS])>_precision)
  82                       {
  83                         ConnType curNodeSInCmode=OTT<ConnType,numPol>::coo2C(startOfCellNodeConnS[nodeIdS]);
  84                         typename MyMatrix::value_type::const_iterator iterRes=resRow.find(OTT<ConnType,numPol>::indFC(curNodeSInCmode));
  85                         if(iterRes==resRow.end())
  86                           resRow.insert(std::make_pair(OTT<ConnType,numPol>::indFC(curNodeSInCmode),resLoc[nodeIdS]));
  87                         else
  88                           {
  89                             double val=(*iterRes).second+resLoc[nodeIdS];
  90                             resRow.erase(OTT<ConnType,numPol>::indFC(curNodeSInCmode));
  91                             resRow.insert(std::make_pair(OTT<ConnType,numPol>::indFC(curNodeSInCmode),val));
  92                           }
  93                       }
  94                   }
  95               }
  96           }
  97       }
  98   }
  99 }
 100
 101 #endif