src/StdMeshers/StdMeshers_QuadToTriaAdaptor.hxx

   1 // Copyright (C) 2007-2016  CEA/DEN, EDF R&D, OPEN CASCADE
   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
  20 //  File   : StdMeshers_QuadToTriaAdaptor.hxx
  21 //  Module : SMESH
  22 //
  23 #ifndef _SMESH_QuadToTriaAdaptor_HXX_
  24 #define _SMESH_QuadToTriaAdaptor_HXX_
  25
  26 #include "SMESH_StdMeshers.hxx"
  27
  28 #include "SMESH_ProxyMesh.hxx"
  29
  30 #include <TColgp_Array1OfPnt.hxx>
  31 #include <TColgp_Array1OfVec.hxx>
  32
  33 class SMESH_Mesh;
  34 class SMESH_ElementSearcher;
  35 class SMDS_MeshElement;
  36 class SMDS_MeshNode;
  37 class SMDS_MeshFace;
  38 class gp_Pnt;
  39 class gp_Vec;
  40
  41
  42 #include <set>
  43 #include <list>
  44 #include <vector>
  45
  46 #include <TopoDS_Shape.hxx>
  47
  48 /*!
  49  * \brief "Transforms" quadrilateral faces into triangular ones by creation of pyramids
  50  */
  51 class STDMESHERS_EXPORT StdMeshers_QuadToTriaAdaptor : public SMESH_ProxyMesh
  52 {
  53 public:
  54   StdMeshers_QuadToTriaAdaptor();
  55
  56   ~StdMeshers_QuadToTriaAdaptor();
  57
  58   bool Compute(SMESH_Mesh&         aMesh,
  59                const TopoDS_Shape& aShape,
  60                SMESH_ProxyMesh*    aProxyMesh=0);
  61
  62   bool Compute(SMESH_Mesh& aMesh);
  63
  64   const TopoDS_Shape& GetShape() const { return myShape; }
  65
  66 protected:
  67
  68   int Preparation(const SMDS_MeshElement* face,
  69                   TColgp_Array1OfPnt& PN,
  70                   TColgp_Array1OfVec& VN,
  71                   std::vector<const SMDS_MeshNode*>& FNodes,
  72                   gp_Pnt& PC, gp_Vec& VNorm,
  73                   const SMDS_MeshElement** volumes=0);
  74
  75   bool LimitHeight (gp_Pnt&                                  Papex,
  76                     const gp_Pnt&                            PC,
  77                     const TColgp_Array1OfPnt&                PN,
  78                     const std::vector<const SMDS_MeshNode*>& FNodes,
  79                     SMESH_Mesh&                              aMesh,
  80                     const SMDS_MeshElement*                  NotCheckedFace,
  81                     const bool                               UseApexRay,
  82                     const TopoDS_Shape&                      Shape = TopoDS_Shape());
  83
  84   bool Compute2ndPart(SMESH_Mesh&                                 aMesh,
  85                       const std::vector<const SMDS_MeshElement*>& pyramids);
  86
  87
  88   void MergePiramids( const SMDS_MeshElement*          PrmI,
  89                       const SMDS_MeshElement*          PrmJ,
  90                       std::set<const SMDS_MeshNode*> & nodesToMove);
  91
  92   void MergeAdjacent(const SMDS_MeshElement*         PrmI,
  93                      std::set<const SMDS_MeshNode*>& nodesToMove,
  94                      const bool                      isRecursion = false);
  95
  96
  97   TopoDS_Shape                      myShape;
  98   std::set<const SMDS_MeshElement*> myRemovedTrias;
  99   std::list< const SMDS_MeshNode* > myDegNodes;
 100   const SMESH_ElementSearcher*      myElemSearcher;
 101 };
 102
 103 #endif