1 // SMESH SMESH : implementaion of SMESH idl descriptions
3 // Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
24 // File : StdMeshers_LocalLength.cxx
25 // Moved here from SMESH_LocalLength.cxx
26 // Author : Paul RASCLE, EDF
30 #include "StdMeshers_LocalLength.hxx"
32 #include "SMESH_Mesh.hxx"
33 #include "SMESH_Algo.hxx"
35 #include "utilities.h"
37 #include <BRep_Tool.hxx>
38 #include <GCPnts_AbscissaPoint.hxx>
39 #include <GeomAdaptor_Curve.hxx>
40 #include <Geom_Curve.hxx>
42 #include <TopLoc_Location.hxx>
43 #include <TopTools_IndexedMapOfShape.hxx>
45 #include <TopoDS_Edge.hxx>
49 //=============================================================================
53 //=============================================================================
55 StdMeshers_LocalLength::StdMeshers_LocalLength(int hypId, int studyId, SMESH_Gen * gen)
56 :SMESH_Hypothesis(hypId, studyId, gen)
59 _name = "LocalLength";
60 _param_algo_dim = 1; // is used by SMESH_Regular_1D
63 //=============================================================================
67 //=============================================================================
69 StdMeshers_LocalLength::~StdMeshers_LocalLength()
73 //=============================================================================
77 //=============================================================================
79 void StdMeshers_LocalLength::SetLength(double length) throw(SALOME_Exception)
81 double oldLength = _length;
83 throw SALOME_Exception(LOCALIZED("length must be positive"));
85 if (oldLength != _length)
86 NotifySubMeshesHypothesisModification();
89 //=============================================================================
93 //=============================================================================
95 double StdMeshers_LocalLength::GetLength() const
100 //=============================================================================
104 //=============================================================================
106 ostream & StdMeshers_LocalLength::SaveTo(ostream & save)
108 save << this->_length;
112 //=============================================================================
116 //=============================================================================
118 istream & StdMeshers_LocalLength::LoadFrom(istream & load)
126 load.clear(ios::badbit | load.rdstate());
130 //=============================================================================
134 //=============================================================================
136 ostream & operator <<(ostream & save, StdMeshers_LocalLength & hyp)
138 return hyp.SaveTo( save );
141 //=============================================================================
145 //=============================================================================
147 istream & operator >>(istream & load, StdMeshers_LocalLength & hyp)
149 return hyp.LoadFrom( load );
152 //================================================================================
154 * \brief Initialize segment length by the mesh built on the geometry
155 * \param theMesh - the built mesh
156 * \param theShape - the geometry of interest
157 * \retval bool - true if parameter values have been successfully defined
159 //================================================================================
161 bool StdMeshers_LocalLength::SetParametersByMesh(const SMESH_Mesh* theMesh,
162 const TopoDS_Shape& theShape)
164 if ( !theMesh || theShape.IsNull() )
169 Standard_Real UMin, UMax;
173 TopTools_IndexedMapOfShape edgeMap;
174 TopExp::MapShapes( theShape, TopAbs_EDGE, edgeMap );
175 for ( int iE = 1; iE <= edgeMap.Extent(); ++iE )
177 const TopoDS_Edge& edge = TopoDS::Edge( edgeMap( iE ));
178 Handle(Geom_Curve) C = BRep_Tool::Curve( edge, L, UMin, UMax );
179 GeomAdaptor_Curve AdaptCurve(C);
181 vector< double > params;
182 SMESHDS_Mesh* aMeshDS = const_cast< SMESH_Mesh* >( theMesh )->GetMeshDS();
183 if ( SMESH_Algo::GetNodeParamOnEdge( aMeshDS, edge, params ))
185 for ( int i = 1; i < params.size(); ++i )
186 _length += GCPnts_AbscissaPoint::Length( AdaptCurve, params[ i-1 ], params[ i ]);
187 nbEdges += params.size() - 1;