1 // Copyright (C) 2007-2016 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, or (at your option) any later version.
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 // File : StdMeshers_QuadToTriaAdaptor.hxx
23 #ifndef _SMESH_QuadToTriaAdaptor_HXX_
24 #define _SMESH_QuadToTriaAdaptor_HXX_
26 #include "SMESH_StdMeshers.hxx"
28 #include "SMESH_ProxyMesh.hxx"
31 class SMESH_ElementSearcher;
32 class SMDS_MeshElement;
35 class TColgp_Array1OfPnt;
36 class TColgp_Array1OfVec;
45 #include <TopoDS_Shape.hxx>
48 * \brief "Transforms" quadrilateral faces into triangular ones by creation of pyramids
50 class STDMESHERS_EXPORT StdMeshers_QuadToTriaAdaptor : public SMESH_ProxyMesh
53 StdMeshers_QuadToTriaAdaptor();
55 ~StdMeshers_QuadToTriaAdaptor();
57 bool Compute(SMESH_Mesh& aMesh,
58 const TopoDS_Shape& aShape,
59 SMESH_ProxyMesh* aProxyMesh=0);
61 bool Compute(SMESH_Mesh& aMesh);
63 const TopoDS_Shape& GetShape() const { return myShape; }
67 int Preparation(const SMDS_MeshElement* face,
68 TColgp_Array1OfPnt& PN,
69 TColgp_Array1OfVec& VN,
70 std::vector<const SMDS_MeshNode*>& FNodes,
71 gp_Pnt& PC, gp_Vec& VNorm,
72 const SMDS_MeshElement** volumes=0);
74 void LimitHeight (gp_Pnt& Papex,
76 const TColgp_Array1OfPnt& PN,
77 const std::vector<const SMDS_MeshNode*>& FNodes,
79 const SMDS_MeshElement* NotCheckedFace,
80 const bool UseApexRay);
82 bool Compute2ndPart(SMESH_Mesh& aMesh,
83 const std::vector<const SMDS_MeshElement*>& pyramids);
86 void MergePiramids( const SMDS_MeshElement* PrmI,
87 const SMDS_MeshElement* PrmJ,
88 std::set<const SMDS_MeshNode*> & nodesToMove);
90 void MergeAdjacent(const SMDS_MeshElement* PrmI,
91 std::set<const SMDS_MeshNode*>& nodesToMove,
92 const bool isRecursion = false);
96 std::set<const SMDS_MeshElement*> myRemovedTrias;
97 std::list< const SMDS_MeshNode* > myDegNodes;
98 const SMESH_ElementSearcher* myElemSearcher;