1 // Copyright (C) 2007-2019 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 // NETGENPlugin : C++ implementation
21 // File : NETGENPlugin_SimpleHypothesis_2D.cxx
22 // Author : Edward AGAPOV
24 //=============================================================================
26 #include "NETGENPlugin_SimpleHypothesis_2D.hxx"
27 #include "NETGENPlugin_Hypothesis.hxx"
29 #include <SMESHDS_SubMesh.hxx>
30 #include <SMESH_ControlsDef.hxx>
31 #include <SMESH_Mesh.hxx>
32 #include <SMESH_subMesh.hxx>
34 #include <TopExp_Explorer.hxx>
36 #include <utilities.h>
40 //=============================================================================
44 //=============================================================================
45 NETGENPlugin_SimpleHypothesis_2D::NETGENPlugin_SimpleHypothesis_2D (int hypId,
47 : SMESH_Hypothesis(hypId, gen),
48 _nbSegments ((int)NETGENPlugin_Hypothesis::GetDefaultNbSegPerEdge()),
53 _name = "NETGEN_SimpleParameters_2D";
57 //=============================================================================
61 //=============================================================================
62 void NETGENPlugin_SimpleHypothesis_2D::SetNumberOfSegments(int nb) throw (SALOME_Exception)
65 throw SALOME_Exception("Number of segments must be positive");
66 if (nb != _nbSegments)
69 if ( _nbSegments ) _segmentLength = 0.;
70 NotifySubMeshesHypothesisModification();
74 //=============================================================================
78 //=============================================================================
79 void NETGENPlugin_SimpleHypothesis_2D::SetLocalLength(double segmentLength)
80 throw (SALOME_Exception)
82 if ( segmentLength < DBL_MIN )
83 throw SALOME_Exception("segment length must be more than zero");
84 if (segmentLength != _segmentLength)
86 _segmentLength = segmentLength;
87 if ( _segmentLength > DBL_MIN ) _nbSegments = 0;
88 NotifySubMeshesHypothesisModification();
92 //=============================================================================
96 //=============================================================================
97 void NETGENPlugin_SimpleHypothesis_2D::LengthFromEdges()
102 NotifySubMeshesHypothesisModification();
106 //=============================================================================
110 //=============================================================================
111 void NETGENPlugin_SimpleHypothesis_2D::SetMaxElementArea(double area)
113 if ( area < DBL_MIN )
118 NotifySubMeshesHypothesisModification();
122 //=======================================================================
123 //function : SetAllowQuadrangles
124 //purpose : Enables/disables generation of quadrangular faces
125 //=======================================================================
127 void NETGENPlugin_SimpleHypothesis_2D::SetAllowQuadrangles(bool toAllow)
129 if ( _allowQuad != toAllow )
131 _allowQuad = toAllow;
132 NotifySubMeshesHypothesisModification();
136 //=======================================================================
137 //function : GetAllowQuadrangles
138 //purpose : Returns true if generation of quadrangular faces is enabled
139 //=======================================================================
141 bool NETGENPlugin_SimpleHypothesis_2D::GetAllowQuadrangles() const
146 //=============================================================================
150 //=============================================================================
151 ostream & NETGENPlugin_SimpleHypothesis_2D::SaveTo(ostream & save)
153 save << _nbSegments << " " << _segmentLength << " " << _area << " " << _allowQuad;
158 //=============================================================================
162 //=============================================================================
163 istream & NETGENPlugin_SimpleHypothesis_2D::LoadFrom(istream & load)
168 isOK = static_cast<bool>(load >> val);
170 _nbSegments = (int) val;
172 load.clear(ios::badbit | load.rdstate());
174 isOK = static_cast<bool>(load >> val);
176 _segmentLength = val;
178 load.clear(ios::badbit | load.rdstate());
180 isOK = static_cast<bool>(load >> val);
184 load.clear(ios::badbit | load.rdstate());
191 //================================================================================
193 * \brief Does nothing
194 * \param theMesh - the built mesh
195 * \param theShape - the geometry of interest
196 * \retval bool - always false
198 //================================================================================
199 bool NETGENPlugin_SimpleHypothesis_2D::SetParametersByMesh(const SMESH_Mesh* theMesh,
200 const TopoDS_Shape& theShape)
202 // Find out nb of segments.
203 int nbSeg = 0, nbEdges = 0;
204 TopExp_Explorer exp( theShape, TopAbs_EDGE );
205 for ( ; exp.More(); exp.Next() ) {
206 SMESH_subMesh* sm = theMesh->GetSubMeshContaining( exp.Current() );
207 if ( sm && !sm->IsEmpty() ) {
208 nbSeg += sm->GetSubMeshDS()->NbElements();
213 _nbSegments = nbSeg / nbEdges;
215 // Find out max face area
217 SMESH::Controls::Area areaControl;
218 SMESH::Controls::TSequenceOfXYZ nodesCoords;
219 const int nbFacesToCheck = 100;
220 for ( exp.Init( theShape, TopAbs_FACE ); exp.More(); exp.Next() ) {
221 SMESH_subMesh* sm = theMesh->GetSubMeshContaining( exp.Current() );
222 if ( sm && !sm->IsEmpty() ) {
223 SMDS_ElemIteratorPtr fIt = sm->GetSubMeshDS()->GetElements();
224 int nbCheckedFaces = 0;
225 while ( fIt->more() && nbCheckedFaces++ < nbFacesToCheck ) {
226 const SMDS_MeshElement* elem = fIt->next();
227 areaControl.GetPoints( elem, nodesCoords );
228 _area = max( _area, areaControl.GetValue( nodesCoords ));
235 //================================================================================
237 * \brief Initialize my parameter values by default parameters.
238 * \retval bool - true if parameter values have been successfully defined
240 //================================================================================
242 bool NETGENPlugin_SimpleHypothesis_2D::SetParametersByDefaults(const TDefaults& dflts,
243 const SMESH_Mesh* /*theMesh*/)
245 _nbSegments = dflts._nbSegments;
246 _segmentLength = dflts._elemLength;
247 return _nbSegments && _segmentLength > 0;