1 // Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 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, or (at your option) any later version.
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
23 // SMESH StdMeshers_Deflection1D : implementation of SMESH idl descriptions
24 // File : StdMeshers_Deflection1D.cxx
27 #include "StdMeshers_Deflection1D.hxx"
28 #include "utilities.h"
30 #include "SMESH_Mesh.hxx"
31 #include "SMESH_Algo.hxx"
33 #include <BRep_Tool.hxx>
34 #include <GeomAdaptor_Curve.hxx>
35 #include <Geom_Curve.hxx>
37 #include <TopLoc_Location.hxx>
38 #include <TopTools_IndexedMapOfShape.hxx>
40 #include <TopoDS_Edge.hxx>
46 //=============================================================================
50 //=============================================================================
52 StdMeshers_Deflection1D::StdMeshers_Deflection1D(int hypId,
54 :SMESH_Hypothesis(hypId, gen)
57 _name = "Deflection1D";
58 _param_algo_dim = 1; // is used by SMESH_Regular_1D
61 //=============================================================================
65 //=============================================================================
67 StdMeshers_Deflection1D::~StdMeshers_Deflection1D()
71 //=============================================================================
75 //=============================================================================
77 void StdMeshers_Deflection1D::SetDeflection(double value)
78 throw(SALOME_Exception)
80 if (_value != value) {
82 throw SALOME_Exception(LOCALIZED("Value must be positive"));
84 NotifySubMeshesHypothesisModification();
90 //=============================================================================
94 //=============================================================================
96 double StdMeshers_Deflection1D::GetDeflection() const
101 //=============================================================================
105 //=============================================================================
107 ostream & StdMeshers_Deflection1D::SaveTo(ostream & save)
113 //=============================================================================
117 //=============================================================================
119 istream & StdMeshers_Deflection1D::LoadFrom(istream & load)
121 bool isOK = static_cast<bool>(load >> _value);
123 load.clear(ios::badbit | load.rdstate());
127 //=============================================================================
131 //=============================================================================
133 ostream & operator <<(ostream & save, StdMeshers_Deflection1D & hyp)
135 return hyp.SaveTo( save );
138 //=============================================================================
142 //=============================================================================
144 istream & operator >>(istream & load, StdMeshers_Deflection1D & hyp)
146 return hyp.LoadFrom( load );
148 //================================================================================
150 * \brief Evaluate curve deflection between two points
151 * \param theCurve - the curve
152 * \param theU1 - the parameter of the first point
153 * \param theU2 - the parameter of the second point
154 * \retval double - deflection value
156 //================================================================================
158 static double deflection(const GeomAdaptor_Curve & theCurve,
162 if ( theCurve.GetType() == GeomAbs_Line )
164 // line between theU1 and theU2
165 gp_Pnt p1 = theCurve.Value( theU1 ), p2 = theCurve.Value( theU2 );
166 gp_Lin segment( p1, gp_Vec( p1, p2 ));
168 // evaluate square distance of theCurve from the segment
169 Standard_Real dist2 = 0;
171 const double step = ( theU2 - theU1 ) / nbPnt;
172 while (( theU1 += step ) < theU2 )
173 dist2 = Max( dist2, segment.SquareDistance( theCurve.Value( theU1 )));
175 return sqrt( dist2 );
178 //================================================================================
180 * \brief Initialize deflection value by the mesh built on the geometry
181 * \param theMesh - the built mesh
182 * \param theShape - the geometry of interest
183 * \retval bool - true if parameter values have been successfully defined
185 //================================================================================
187 bool StdMeshers_Deflection1D::SetParametersByMesh(const SMESH_Mesh* theMesh,
188 const TopoDS_Shape& theShape)
190 if ( !theMesh || theShape.IsNull() )
195 Standard_Real UMin, UMax;
199 TopTools_IndexedMapOfShape edgeMap;
200 TopExp::MapShapes( theShape, TopAbs_EDGE, edgeMap );
202 for ( int iE = 1; iE <= edgeMap.Extent(); ++iE )
204 const TopoDS_Edge& edge = TopoDS::Edge( edgeMap( iE ));
205 Handle(Geom_Curve) C = BRep_Tool::Curve( edge, L, UMin, UMax );
206 GeomAdaptor_Curve AdaptCurve(C, UMin, UMax);
207 if ( AdaptCurve.GetType() != GeomAbs_Line )
209 vector< double > params;
210 SMESHDS_Mesh* aMeshDS = const_cast< SMESH_Mesh* >( theMesh )->GetMeshDS();
211 if ( SMESH_Algo::GetNodeParamOnEdge( aMeshDS, edge, params ))
214 for ( size_t i = 1; i < params.size(); ++i )
215 _value = Max( _value, deflection( AdaptCurve, params[ i-1 ], params[ i ]));
224 //================================================================================
226 * \brief Initialize my parameter values by default parameters.
227 * \retval bool - true if parameter values have been successfully defined
229 //================================================================================
231 bool StdMeshers_Deflection1D::SetParametersByDefaults(const TDefaults& /*dflts*/,
232 const SMESH_Mesh* /*theMesh*/)