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// Copyright (C) 2007-2013 CEA/DEN, EDF R&D, OPEN CASCADE
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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//
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// File : StdMeshers_QuadToTriaAdaptor.hxx
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// Module : SMESH
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//
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#ifndef _SMESH_QuadToTriaAdaptor_HXX_
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#define _SMESH_QuadToTriaAdaptor_HXX_
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#include "SMESH_StdMeshers.hxx"
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#include "SMESH_ProxyMesh.hxx"
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class SMESH_Mesh;
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class SMESH_ElementSearcher;
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class SMDS_MeshElement;
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class SMDS_MeshNode;
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class SMDS_MeshFace;
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class Handle_TColgp_HArray1OfPnt;
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class Handle_TColgp_HArray1OfVec;
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class gp_Pnt;
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class gp_Vec;
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#include <set>
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#include <list>
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#include <vector>
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#include <TopoDS_Shape.hxx>
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/*!
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* \brief "Transforms" quadrilateral faces into triangular ones by creation of pyramids
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*/
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class STDMESHERS_EXPORT StdMeshers_QuadToTriaAdaptor : public SMESH_ProxyMesh
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{
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public:
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StdMeshers_QuadToTriaAdaptor();
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~StdMeshers_QuadToTriaAdaptor();
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bool Compute(SMESH_Mesh& aMesh,
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const TopoDS_Shape& aShape,
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SMESH_ProxyMesh* aProxyMesh=0);
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bool Compute(SMESH_Mesh& aMesh);
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const TopoDS_Shape& GetShape() const { return myShape; }
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protected:
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int Preparation(const SMDS_MeshElement* face,
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Handle_TColgp_HArray1OfPnt& PN,
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Handle_TColgp_HArray1OfVec& VN,
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std::vector<const SMDS_MeshNode*>& FNodes,
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gp_Pnt& PC, gp_Vec& VNorm,
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const SMDS_MeshElement** volumes=0);
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bool CheckIntersection(const gp_Pnt& P, const gp_Pnt& PC,
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gp_Pnt& Pint, SMESH_Mesh& aMesh,
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const TopoDS_Shape& aShape,
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const SMDS_MeshElement* NotCheckedFace);
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bool Compute2ndPart(SMESH_Mesh& aMesh,
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const std::vector<const SMDS_MeshElement*>& pyramids);
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void MergePiramids( const SMDS_MeshElement* PrmI,
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const SMDS_MeshElement* PrmJ,
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std::set<const SMDS_MeshNode*> & nodesToMove);
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void MergeAdjacent(const SMDS_MeshElement* PrmI,
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std::set<const SMDS_MeshNode*>& nodesToMove);
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TopoDS_Shape myShape;
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std::set<const SMDS_MeshElement*> myRemovedTrias;
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std::list< const SMDS_MeshNode* > myDegNodes;
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const SMESH_ElementSearcher* myElemSearcher;
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};
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#endif
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