1 // Copyright (C) 2007-2022 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"
30 #include <TColgp_Array1OfPnt.hxx>
31 #include <TColgp_Array1OfVec.hxx>
34 class SMESH_ElementSearcher;
35 class SMDS_MeshElement;
46 #include <TopoDS_Shape.hxx>
47 #include <NCollection_DataMap.hxx>
50 * \brief "Transforms" quadrilateral faces into triangular ones by creation of pyramids
52 class STDMESHERS_EXPORT StdMeshers_QuadToTriaAdaptor : public SMESH_ProxyMesh
55 StdMeshers_QuadToTriaAdaptor();
57 ~StdMeshers_QuadToTriaAdaptor();
59 bool Compute(SMESH_Mesh& aMesh,
60 const TopoDS_Shape& aShape,
61 SMESH_ProxyMesh* aProxyMesh=0);
63 bool Compute(SMESH_Mesh& aMesh);
65 const TopoDS_Shape& GetShape() const { return myShape; }
69 int Preparation(const SMDS_MeshElement* face,
70 TColgp_Array1OfPnt& PN,
71 TColgp_Array1OfVec& VN,
72 std::vector<const SMDS_MeshNode*>& FNodes,
73 gp_Pnt& PC, gp_Vec& VNorm,
74 const SMDS_MeshElement** volumes=0);
76 bool LimitHeight (gp_Pnt& Papex,
78 const TColgp_Array1OfPnt& PN,
79 const std::vector<const SMDS_MeshNode*>& FNodes,
81 const SMDS_MeshElement* NotCheckedFace,
82 const bool UseApexRay,
83 const TopoDS_Shape& Shape = TopoDS_Shape());
85 bool Compute2ndPart(SMESH_Mesh& aMesh,
86 const std::vector<const SMDS_MeshElement*>& pyramids);
89 void MergePiramids( const SMDS_MeshElement* PrmI,
90 const SMDS_MeshElement* PrmJ,
91 std::set<const SMDS_MeshNode*> & nodesToMove);
93 void MergeAdjacent(const SMDS_MeshElement* PrmI,
94 std::set<const SMDS_MeshNode*>& nodesToMove,
95 const bool isRecursion = false);
97 bool DecreaseHeightDifference( const SMDS_MeshElement* pyram,
100 TopoDS_Shape myShape;
101 std::set<const SMDS_MeshElement*> myRemovedTrias;
102 std::list< const SMDS_MeshNode* > myDegNodes;
103 const SMESH_ElementSearcher* myElemSearcher;
105 NCollection_DataMap< const SMDS_MeshElement*, double > myPyramHeight2;
107 // work buffers of DecreaseHeightDifference()
108 std::vector< const SMDS_MeshElement* > myAdjPyrams;
109 std::vector<const SMDS_MeshNode *> myNodes;