1 // Copyright (C) 2007-2011 CEA/DEN, EDF R&D, OPEN CASCADE
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.
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.
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
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 // SMESH SMESH : implementaion of SMESH idl descriptions
21 // File : StdMeshers_QuadToTriaAdaptor.hxx
24 #ifndef _SMESH_QuadToTriaAdaptor_HXX_
25 #define _SMESH_QuadToTriaAdaptor_HXX_
27 #include "SMESH_StdMeshers.hxx"
29 #include "SMESH_ProxyMesh.hxx"
32 class SMESH_ElementSearcher;
33 class SMDS_MeshElement;
36 class Handle_TColgp_HArray1OfPnt;
37 class Handle_TColgp_HArray1OfVec;
46 #include <TopoDS_Shape.hxx>
49 * \brief "Transforms" quadrilateral faces into triangular ones by creation of pyramids
51 class STDMESHERS_EXPORT StdMeshers_QuadToTriaAdaptor : public SMESH_ProxyMesh
54 StdMeshers_QuadToTriaAdaptor();
56 ~StdMeshers_QuadToTriaAdaptor();
58 bool Compute(SMESH_Mesh& aMesh,
59 const TopoDS_Shape& aShape,
60 SMESH_ProxyMesh* aProxyMesh=0);
62 bool Compute(SMESH_Mesh& aMesh);
66 int Preparation(const SMDS_MeshElement* face,
67 Handle_TColgp_HArray1OfPnt& PN,
68 Handle_TColgp_HArray1OfVec& VN,
69 std::vector<const SMDS_MeshNode*>& FNodes,
70 gp_Pnt& PC, gp_Vec& VNorm,
71 const SMDS_MeshElement** volumes=0);
73 bool CheckIntersection(const gp_Pnt& P, const gp_Pnt& PC,
74 gp_Pnt& Pint, SMESH_Mesh& aMesh,
75 const TopoDS_Shape& aShape,
76 const SMDS_MeshElement* NotCheckedFace);
78 bool Compute2ndPart(SMESH_Mesh& aMesh,
79 const std::vector<const SMDS_MeshElement*>& pyramids);
82 void MergePiramids( const SMDS_MeshElement* PrmI,
83 const SMDS_MeshElement* PrmJ,
84 std::set<const SMDS_MeshNode*> & nodesToMove);
86 void MergeAdjacent(const SMDS_MeshElement* PrmI,
87 std::set<const SMDS_MeshNode*>& nodesToMove);
90 std::set<const SMDS_MeshElement*> myRemovedTrias;
92 std::list< const SMDS_MeshNode* > myDegNodes;
94 const SMESH_ElementSearcher* myElemSearcher;