1 // Copyright (C) 2007-2015 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 SMESH : implementaion of SMESH idl descriptions
24 // File : StdMeshers_NumberOfSegments.cxx
25 // Moved here from SMESH_NumberOfSegments.cxx
26 // Author : Paul RASCLE, EDF
29 #include "StdMeshers_NumberOfSegments.hxx"
31 #include "StdMeshers_Distribution.hxx"
32 #include "SMESHDS_SubMesh.hxx"
33 #include "SMESH_Mesh.hxx"
34 #include "SMESH_Comment.hxx"
36 #include <ExprIntrp_GenExp.hxx>
37 #include <Expr_Array1OfNamedUnknown.hxx>
38 #include <Expr_NamedUnknown.hxx>
39 #include <TColStd_Array1OfReal.hxx>
40 #include <TCollection_AsciiString.hxx>
42 #include <TopTools_IndexedMapOfShape.hxx>
44 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
48 #include <Standard_Failure.hxx>
51 #include <Standard_ErrorHandler.hxx>
54 #include <Basics_Utils.hxx>
56 using namespace StdMeshers;
59 const double PRECISION = 1e-7;
61 //=============================================================================
65 //=============================================================================
67 StdMeshers_NumberOfSegments::StdMeshers_NumberOfSegments(int hypId,
70 : SMESH_Hypothesis(hypId, studyId, gen),
71 _numberOfSegments(15),//issue 19923
72 _distrType(DT_Regular),
74 _convMode(1) //cut negative by default
76 _name = "NumberOfSegments";
80 //=============================================================================
84 //=============================================================================
86 StdMeshers_NumberOfSegments::~StdMeshers_NumberOfSegments()
90 //=============================================================================
94 //=============================================================================
96 StdMeshers_NumberOfSegments::BuildDistributionExpr( const char* expr,int nbSeg,int conv )
97 throw ( SALOME_Exception )
99 if( !buildDistribution( TCollection_AsciiString( ( Standard_CString )expr ), conv, 0.0, 1.0, nbSeg, _distr, 1E-4 ) )
104 const vector<double>&
105 StdMeshers_NumberOfSegments::BuildDistributionTab( const vector<double>& tab,
108 throw ( SALOME_Exception )
110 if( !buildDistribution( tab, conv, 0.0, 1.0, nbSeg, _distr, 1E-4 ) )
115 //=============================================================================
119 //=============================================================================
121 void StdMeshers_NumberOfSegments::SetNumberOfSegments(int segmentsNumber)
122 throw(SALOME_Exception)
124 int oldNumberOfSegments = _numberOfSegments;
125 if (segmentsNumber <= 0)
126 throw SALOME_Exception(LOCALIZED("number of segments must be positive"));
127 _numberOfSegments = segmentsNumber;
129 if (oldNumberOfSegments != _numberOfSegments)
130 NotifySubMeshesHypothesisModification();
133 //=============================================================================
137 //=============================================================================
139 int StdMeshers_NumberOfSegments::GetNumberOfSegments() const
141 return _numberOfSegments;
144 //================================================================================
148 //================================================================================
150 void StdMeshers_NumberOfSegments::SetDistrType(DistrType typ)
151 throw(SALOME_Exception)
153 if (typ < DT_Regular || typ > DT_ExprFunc)
154 throw SALOME_Exception(LOCALIZED("distribution type is out of range"));
156 if (typ != _distrType)
159 NotifySubMeshesHypothesisModification();
163 //================================================================================
167 //================================================================================
169 StdMeshers_NumberOfSegments::DistrType StdMeshers_NumberOfSegments::GetDistrType() const
174 //================================================================================
178 //================================================================================
180 void StdMeshers_NumberOfSegments::SetScaleFactor(double scaleFactor)
181 throw(SALOME_Exception)
183 if (scaleFactor < PRECISION)
184 throw SALOME_Exception(LOCALIZED("scale factor must be positive"));
186 if (_distrType != DT_Scale)
187 _distrType = DT_Scale;
189 if ( fabs(scaleFactor - 1.0) < PRECISION )
190 _distrType = DT_Regular;
192 if ( fabs(_scaleFactor - scaleFactor) > PRECISION )
194 _scaleFactor = scaleFactor;
195 NotifySubMeshesHypothesisModification();
199 //================================================================================
203 //================================================================================
205 double StdMeshers_NumberOfSegments::GetScaleFactor() const
206 throw(SALOME_Exception)
208 if (_distrType != DT_Scale)
209 throw SALOME_Exception(LOCALIZED("not a scale distribution"));
213 //================================================================================
217 //================================================================================
219 void StdMeshers_NumberOfSegments::SetTableFunction(const vector<double>& table)
220 throw(SALOME_Exception)
222 if (_distrType != DT_TabFunc)
223 _distrType = DT_TabFunc;
224 //throw SALOME_Exception(LOCALIZED("not a table function distribution"));
225 if ( (table.size() % 2) != 0 )
226 throw SALOME_Exception(LOCALIZED("odd size of vector of table function"));
228 double prev = -PRECISION;
229 bool isSame = table.size() == _table.size();
232 for ( size_t i = 0; i < table.size() / 2; i++ )
234 double par = table[i*2];
235 double val = table[i*2+1];
242 val = pow( 10.0, val );
244 catch(Standard_Failure) {
245 Handle(Standard_Failure) aFail = Standard_Failure::Caught();
246 throw SALOME_Exception( LOCALIZED( "invalid value"));
250 else if( _convMode==1 && val<0.0 )
253 if ( par < 0 || par > 1)
254 throw SALOME_Exception(LOCALIZED("parameter of table function is out of range [0,1]"));
255 if ( fabs(par-prev) < PRECISION )
256 throw SALOME_Exception(LOCALIZED("two parameters are the same"));
258 throw SALOME_Exception(LOCALIZED("value of table function is not positive"));
259 if( val > PRECISION )
263 double oldpar = _table[i*2];
264 double oldval = _table[i*2+1];
265 if ( fabs(par - oldpar) > PRECISION || fabs(val - oldval) > PRECISION )
272 throw SALOME_Exception(LOCALIZED("value of table function is not positive"));
274 if ( pos && !isSame )
277 NotifySubMeshesHypothesisModification();
281 //================================================================================
285 //================================================================================
287 const vector<double>& StdMeshers_NumberOfSegments::GetTableFunction() const
288 throw(SALOME_Exception)
290 if (_distrType != DT_TabFunc)
291 throw SALOME_Exception(LOCALIZED("not a table function distribution"));
295 //================================================================================
296 /*! check if only 't' is unknown variable in expression
298 //================================================================================
299 bool isCorrectArg( const Handle( Expr_GeneralExpression )& expr )
301 Handle( Expr_NamedUnknown ) sub = Handle( Expr_NamedUnknown )::DownCast( expr );
303 return sub->GetName()=="t";
306 for( int i=1, n=expr->NbSubExpressions(); i<=n && res; i++ )
308 Handle( Expr_GeneralExpression ) sub = expr->SubExpression( i );
309 Handle( Expr_NamedUnknown ) name = Handle( Expr_NamedUnknown )::DownCast( sub );
312 if( name->GetName()!="t" )
316 res = isCorrectArg( sub );
321 //================================================================================
322 /*! this function parses the expression 'str' in order to check if syntax is correct
323 * ( result in 'syntax' ) and if only 't' is unknown variable in expression ( result in 'args' )
325 //================================================================================
326 bool process( const TCollection_AsciiString& str, int convMode,
327 bool& syntax, bool& args,
328 bool& non_neg, bool& non_zero,
329 bool& singulars, double& sing_point )
331 Kernel_Utils::Localizer loc;
333 bool parsed_ok = true;
334 Handle( ExprIntrp_GenExp ) myExpr;
339 myExpr = ExprIntrp_GenExp::Create();
340 myExpr->Process( str.ToCString() );
341 } catch(Standard_Failure) {
342 Handle(Standard_Failure) aFail = Standard_Failure::Caught();
348 if( parsed_ok && myExpr->IsDone() )
351 args = isCorrectArg( myExpr->Expression() );
354 bool res = parsed_ok && syntax && args;
364 FunctionExpr f( str.ToCString(), convMode );
366 for( int i=0; i<=max; i++ )
368 double t = double(i)/double(max), val;
369 if( !f.value( t, val ) )
385 return res && non_neg && non_zero && ( !singulars );
388 //================================================================================
392 //================================================================================
394 void StdMeshers_NumberOfSegments::SetExpressionFunction(const char* expr)
395 throw(SALOME_Exception)
397 if (_distrType != DT_ExprFunc)
398 _distrType = DT_ExprFunc;
400 string func = CheckExpressionFunction( expr, _convMode );
404 NotifySubMeshesHypothesisModification();
408 //=======================================================================
409 //function : CheckExpressionFunction
410 //purpose : Checks validity of the expression of the function f(t), e.g. "sin(t)".
411 // In case of validity returns a cleaned expression
412 //=======================================================================
415 StdMeshers_NumberOfSegments::CheckExpressionFunction( const std::string& expr,
417 throw (SALOME_Exception)
419 // remove white spaces
420 TCollection_AsciiString str((Standard_CString)expr.c_str());
426 bool syntax, args, non_neg, singulars, non_zero;
428 bool res = process( str, convMode, syntax, args, non_neg, non_zero, singulars, sing_point );
432 throw SALOME_Exception(SMESH_Comment("invalid expression syntax: ") << str );
434 throw SALOME_Exception(LOCALIZED("only 't' may be used as function argument"));
436 throw SALOME_Exception(LOCALIZED("only non-negative function can be used"));
440 sprintf( buf, "Function has singular point in %.3f", sing_point );
441 throw SALOME_Exception( buf );
444 throw SALOME_Exception(LOCALIZED("f(t)=0 cannot be used"));
447 return str.ToCString();
450 //================================================================================
454 //================================================================================
456 const char* StdMeshers_NumberOfSegments::GetExpressionFunction() const
457 throw(SALOME_Exception)
459 if (_distrType != DT_ExprFunc)
460 throw SALOME_Exception(LOCALIZED("not an expression function distribution"));
461 return _func.c_str();
464 //================================================================================
468 //================================================================================
470 void StdMeshers_NumberOfSegments::SetConversionMode( int conv )
471 throw(SALOME_Exception)
473 // if (_distrType != DT_TabFunc && _distrType != DT_ExprFunc)
474 // throw SALOME_Exception(LOCALIZED("not a functional distribution"));
476 if( conv != _convMode )
479 NotifySubMeshesHypothesisModification();
483 //================================================================================
487 //================================================================================
489 int StdMeshers_NumberOfSegments::ConversionMode() const
490 throw(SALOME_Exception)
492 // if (_distrType != DT_TabFunc && _distrType != DT_ExprFunc)
493 // throw SALOME_Exception(LOCALIZED("not a functional distribution"));
497 //=============================================================================
501 //=============================================================================
503 ostream & StdMeshers_NumberOfSegments::SaveTo(ostream & save)
505 int listSize = _edgeIDs.size();
506 save << _numberOfSegments << " " << (int)_distrType;
510 save << " " << _scaleFactor;
513 save << " " << _table.size();
514 for ( size_t i = 0; i < _table.size(); i++ )
515 save << " " << _table[i];
518 save << " " << _func;
525 if (_distrType == DT_TabFunc || _distrType == DT_ExprFunc)
526 save << " " << _convMode;
528 if ( _distrType != DT_Regular && listSize > 0 ) {
529 save << " " << listSize;
530 for ( int i = 0; i < listSize; i++ )
531 save << " " << _edgeIDs[i];
532 save << " " << _objEntry;
538 //=============================================================================
542 //=============================================================================
544 istream & StdMeshers_NumberOfSegments::LoadFrom(istream & load)
549 // read number of segments
552 _numberOfSegments = a;
554 load.clear(ios::badbit | load.rdstate());
556 // read second stored value. It can be two variants here:
557 // 1. If the hypothesis is stored in old format (nb.segments and scale factor),
558 // we wait here the scale factor, which is double.
559 // 2. If the hypothesis is stored in new format
560 // (nb.segments, distr.type, some other params.),
561 // we wait here the ditribution type, which is integer
563 isOK = (load >> scale_factor);
564 a = (int)scale_factor;
566 // try to interprete ditribution type,
567 // supposing that this hypothesis was written in the new format
570 if (a < DT_Regular || a > DT_ExprFunc)
571 _distrType = DT_Regular;
573 _distrType = (DistrType) a;
576 load.clear(ios::badbit | load.rdstate());
578 // parameters of distribution
589 load.clear(ios::badbit | load.rdstate());
590 // this can mean, that the hypothesis is stored in old format
591 _distrType = DT_Regular;
592 _scaleFactor = scale_factor;
601 _table.resize(a, 0.);
602 for ( size_t i=0; i < _table.size(); i++ )
608 load.clear(ios::badbit | load.rdstate());
613 load.clear(ios::badbit | load.rdstate());
614 // this can mean, that the hypothesis is stored in old format
615 _distrType = DT_Regular;
616 _scaleFactor = scale_factor;
623 isOK = (load >> str);
628 load.clear(ios::badbit | load.rdstate());
629 // this can mean, that the hypothesis is stored in old format
630 _distrType = DT_Regular;
631 _scaleFactor = scale_factor;
640 if (_distrType == DT_TabFunc || _distrType == DT_ExprFunc)
646 load.clear(ios::badbit | load.rdstate());
649 // load reversed edges IDs
651 isOK = (load >> intVal);
652 if ( isOK && _distrType != DT_Regular && intVal > 0 ) {
653 _edgeIDs.reserve( intVal );
654 for ( size_t i = 0; i < _edgeIDs.capacity() && isOK; i++) {
655 isOK = (load >> intVal);
656 if ( isOK ) _edgeIDs.push_back( intVal );
658 isOK = (load >> _objEntry);
664 //=============================================================================
668 //=============================================================================
670 ostream & operator <<(ostream & save, StdMeshers_NumberOfSegments & hyp)
672 return hyp.SaveTo( save );
675 //=============================================================================
679 //=============================================================================
681 istream & operator >>(istream & load, StdMeshers_NumberOfSegments & hyp)
683 return hyp.LoadFrom( load );
686 //================================================================================
688 * \brief Initialize number of segments by the mesh built on the geometry
689 * \param theMesh - the built mesh
690 * \param theShape - the geometry of interest
691 * \retval bool - true if parameter values have been successfully defined
693 //================================================================================
695 bool StdMeshers_NumberOfSegments::SetParametersByMesh(const SMESH_Mesh* theMesh,
696 const TopoDS_Shape& theShape)
698 if ( !theMesh || theShape.IsNull() )
701 _numberOfSegments = 0;
702 _distrType = DT_Regular;
705 TopTools_IndexedMapOfShape edgeMap;
706 TopExp::MapShapes( theShape, TopAbs_EDGE, edgeMap );
707 SMESHDS_Mesh* aMeshDS = const_cast< SMESH_Mesh* >( theMesh )->GetMeshDS();
708 for ( int i = 1; i <= edgeMap.Extent(); ++i )
710 // get current segment length
711 SMESHDS_SubMesh * eSubMesh = aMeshDS->MeshElements( edgeMap( i ));
712 if ( eSubMesh && eSubMesh->NbElements())
713 _numberOfSegments += eSubMesh->NbElements();
718 _numberOfSegments /= nbEdges;
720 if (_numberOfSegments == 0) _numberOfSegments = 1;
724 //================================================================================
726 * \brief Initialize my parameter values by default parameters.
727 * \retval bool - true if parameter values have been successfully defined
729 //================================================================================
731 bool StdMeshers_NumberOfSegments::SetParametersByDefaults(const TDefaults& dflts,
732 const SMESH_Mesh* /*theMesh*/)
734 return (_numberOfSegments = dflts._nbSegments );
737 //=============================================================================
741 //=============================================================================
743 void StdMeshers_NumberOfSegments::SetReversedEdges( std::vector<int>& ids )
745 if ( ids != _edgeIDs ) {
748 NotifySubMeshesHypothesisModification();