#include "StdMeshers_LocalLength.hxx"
#include "StdMeshers_NumberOfSegments.hxx"
+#include "StdMeshers_Arithmetic1D.hxx"
+#include "StdMeshers_StartEndLength.hxx"
+#include "StdMeshers_Deflection1D.hxx"
#include "SMDS_MeshElement.hxx"
#include "SMDS_MeshNode.hxx"
#include "SMDS_EdgePosition.hxx"
+#include "SMESH_subMesh.hxx"
#include "utilities.h"
+#include <BRep_Tool.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Shape.hxx>
+#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <GeomAdaptor_Curve.hxx>
-#include <BRep_Tool.hxx>
#include <GCPnts_AbscissaPoint.hxx>
#include <GCPnts_UniformAbscissa.hxx>
+#include <GCPnts_UniformDeflection.hxx>
+#include <Standard_ErrorHandler.hxx>
+#include <Precision.hxx>
#include <string>
-#include <algorithm>
//=============================================================================
/*!
{
MESSAGE("StdMeshers_Regular_1D::StdMeshers_Regular_1D");
_name = "Regular_1D";
- // _shapeType = TopAbs_EDGE;
_shapeType = (1 << TopAbs_EDGE);
+
_compatibleHypothesis.push_back("LocalLength");
_compatibleHypothesis.push_back("NumberOfSegments");
-
- _localLength = 0;
- _numberOfSegments = 0;
- _hypLocalLength = NULL;
- _hypNumberOfSegments = NULL;
+ _compatibleHypothesis.push_back("StartEndLength");
+ _compatibleHypothesis.push_back("Deflection1D");
+ _compatibleHypothesis.push_back("Arithmetic1D");
}
//=============================================================================
const TopoDS_Shape& aShape,
SMESH_Hypothesis::Hypothesis_Status& aStatus)
{
- //MESSAGE("StdMeshers_Regular_1D::CheckHypothesis");
+ _hypType = NONE;
+
+ const list <const SMESHDS_Hypothesis * >&hyps = GetUsedHypothesis(aMesh, aShape);
+ if (hyps.size() == 0)
+ {
+ aStatus = SMESH_Hypothesis::HYP_MISSING;
+ return false; // can't work without a hypothesis
+ }
+
+ // use only the first hypothesis
+ const SMESHDS_Hypothesis *theHyp = hyps.front();
+
+ string hypName = theHyp->GetName();
+
+ if (hypName == "LocalLength")
+ {
+ const StdMeshers_LocalLength * hyp =
+ dynamic_cast <const StdMeshers_LocalLength * >(theHyp);
+ ASSERT(hyp);
+ _value[ BEG_LENGTH_IND ] = _value[ END_LENGTH_IND ] = hyp->GetLength();
+ ASSERT( _value[ BEG_LENGTH_IND ] > 0 );
+ _hypType = LOCAL_LENGTH;
+ aStatus = SMESH_Hypothesis::HYP_OK;
+ }
+
+ else if (hypName == "NumberOfSegments")
+ {
+ const StdMeshers_NumberOfSegments * hyp =
+ dynamic_cast <const StdMeshers_NumberOfSegments * >(theHyp);
+ ASSERT(hyp);
+ _value[ NB_SEGMENTS_IND ] = hyp->GetNumberOfSegments();
+ _value[ SCALE_FACTOR_IND ] = hyp->GetScaleFactor();
+ ASSERT( _value[ NB_SEGMENTS_IND ] > 0 );
+ _hypType = NB_SEGMENTS;
+ aStatus = SMESH_Hypothesis::HYP_OK;
+ }
+
+ else if (hypName == "Arithmetic1D")
+ {
+ const StdMeshers_Arithmetic1D * hyp =
+ dynamic_cast <const StdMeshers_Arithmetic1D * >(theHyp);
+ ASSERT(hyp);
+ _value[ BEG_LENGTH_IND ] = hyp->GetLength( true );
+ _value[ END_LENGTH_IND ] = hyp->GetLength( false );
+ ASSERT( _value[ BEG_LENGTH_IND ] > 0 && _value[ END_LENGTH_IND ] > 0 );
+ _hypType = ARITHMETIC_1D;
+ aStatus = SMESH_Hypothesis::HYP_OK;
+ }
+
+ else if (hypName == "StartEndLength")
+ {
+ const StdMeshers_StartEndLength * hyp =
+ dynamic_cast <const StdMeshers_StartEndLength * >(theHyp);
+ ASSERT(hyp);
+ _value[ BEG_LENGTH_IND ] = hyp->GetLength( true );
+ _value[ END_LENGTH_IND ] = hyp->GetLength( false );
+ ASSERT( _value[ BEG_LENGTH_IND ] > 0 && _value[ END_LENGTH_IND ] > 0 );
+ _hypType = BEG_END_LENGTH;
+ aStatus = SMESH_Hypothesis::HYP_OK;
+ }
+
+ else if (hypName == "Deflection1D")
+ {
+ const StdMeshers_Deflection1D * hyp =
+ dynamic_cast <const StdMeshers_Deflection1D * >(theHyp);
+ ASSERT(hyp);
+ _value[ DEFLECTION_IND ] = hyp->GetDeflection();
+ ASSERT( _value[ DEFLECTION_IND ] > 0 );
+ _hypType = DEFLECTION;
+ aStatus = SMESH_Hypothesis::HYP_OK;
+ }
+ else
+ aStatus = SMESH_Hypothesis::HYP_INCOMPATIBLE;
+
+ return ( _hypType != NONE );
+}
+
+//=======================================================================
+//function : compensateError
+//purpose : adjust theParams so that the last segment length == an
+//=======================================================================
- list <const SMESHDS_Hypothesis * >::const_iterator itl;
- const SMESHDS_Hypothesis *theHyp;
+static void compensateError(double a1, double an,
+ double U1, double Un,
+ double length,
+ GeomAdaptor_Curve& C3d,
+ list<double> & theParams)
+{
+ int i, nPar = theParams.size();
+ if ( a1 + an < length && nPar > 1 )
+ {
+ list<double>::reverse_iterator itU = theParams.rbegin();
+ double Ul = *itU++;
+ // dist from the last point to the edge end <Un>, it should be equal <an>
+ double Ln = GCPnts_AbscissaPoint::Length( C3d, Ul, Un );
+ double dLn = an - Ln; // error of <an>
+ if ( Abs( dLn ) <= Precision::Confusion() )
+ return;
+ double dU = Abs( Ul - *itU ); // parametric length of the last but one segment
+ double dUn = dLn * Abs( Un - U1 ) / length; // parametric error of <an>
+ if ( dUn < 0.5 * dU ) { // last segment is a bit shorter than it should
+ dUn = -dUn; // move the last parameter to the edge beginning
+ }
+ else { // last segment is much shorter than it should -> remove the last param and
+ theParams.pop_back(); nPar--; // move the rest points toward the edge end
+ Ln = GCPnts_AbscissaPoint::Length( C3d, theParams.back(), Un );
+ dUn = ( an - Ln ) * Abs( Un - U1 ) / length;
+ if ( dUn < 0.5 * dU )
+ dUn = -dUn;
+ }
+ if ( U1 > Un )
+ dUn = -dUn;
+ double q = dUn / ( nPar - 1 );
+ for ( itU = theParams.rbegin(), i = 1; i < nPar; itU++, i++ ) {
+ (*itU) += dUn;
+ dUn -= q;
+ }
+ }
+}
- const list <const SMESHDS_Hypothesis * >&hyps = GetUsedHypothesis(aMesh, aShape);
- int nbHyp = hyps.size();
- if (!nbHyp)
+//=============================================================================
+/*!
+ *
+ */
+//=============================================================================
+bool StdMeshers_Regular_1D::computeInternalParameters(const TopoDS_Edge& theEdge,
+ list<double> & theParams,
+ const bool theReverse) const
+{
+ theParams.clear();
+
+ double f, l;
+ Handle(Geom_Curve) Curve = BRep_Tool::Curve(theEdge, f, l);
+ GeomAdaptor_Curve C3d(Curve);
+
+ double length = EdgeLength(theEdge);
+
+ switch( _hypType )
+ {
+ case LOCAL_LENGTH:
+ case NB_SEGMENTS: {
+
+ double eltSize = 1;
+ if ( _hypType == LOCAL_LENGTH )
+ {
+ double nbseg = ceil(length / _value[ BEG_LENGTH_IND ]); // integer sup
+ if (nbseg <= 0)
+ nbseg = 1; // degenerated edge
+ eltSize = length / nbseg;
+ }
+ else
+ {
+ double epsilon = 0.001;
+ if (fabs(_value[ SCALE_FACTOR_IND ] - 1.0) > epsilon)
+ {
+ double scale = _value[ SCALE_FACTOR_IND ];
+ if ( theReverse )
+ scale = 1. / scale;
+ double alpha = pow( scale , 1.0 / (_value[ NB_SEGMENTS_IND ] - 1));
+ double factor = (l - f) / (1 - pow( alpha,_value[ NB_SEGMENTS_IND ]));
+
+ int i, NbPoints = 1 + (int) _value[ NB_SEGMENTS_IND ];
+ for ( i = 2; i < NbPoints; i++ )
{
- aStatus = SMESH_Hypothesis::HYP_MISSING;
- return false; // can't work with no hypothesis
+ double param = factor * (1 - pow(alpha, i - 1));
+ theParams.push_back( param );
}
-
- itl = hyps.begin();
- theHyp = (*itl); // use only the first hypothesis
-
- string hypName = theHyp->GetName();
- int hypId = theHyp->GetID();
- //SCRUTE(hypName);
-
- bool isOk = false;
-
- if (hypName == "LocalLength")
- {
- _hypLocalLength = dynamic_cast <const StdMeshers_LocalLength * >(theHyp);
- ASSERT(_hypLocalLength);
- _localLength = _hypLocalLength->GetLength();
- _numberOfSegments = 0;
- isOk = true;
- aStatus = SMESH_Hypothesis::HYP_OK;
- }
-
- else if (hypName == "NumberOfSegments")
- {
- _hypNumberOfSegments =
- dynamic_cast <const StdMeshers_NumberOfSegments * >(theHyp);
- ASSERT(_hypNumberOfSegments);
- _numberOfSegments = _hypNumberOfSegments->GetNumberOfSegments();
- _scaleFactor = _hypNumberOfSegments->GetScaleFactor();
- _localLength = 0;
- isOk = true;
- aStatus = SMESH_Hypothesis::HYP_OK;
- }
- else
- aStatus = SMESH_Hypothesis::HYP_INCOMPATIBLE;
-
- //SCRUTE(_localLength);
- //SCRUTE(_numberOfSegments);
-
- return isOk;
+ return true;
+ }
+ else
+ {
+ eltSize = length / _value[ NB_SEGMENTS_IND ];
+ }
+ }
+
+ GCPnts_UniformAbscissa Discret(C3d, eltSize, f, l);
+ if ( !Discret.IsDone() )
+ return false;
+
+ int NbPoints = Discret.NbPoints();
+ for ( int i = 2; i < NbPoints; i++ )
+ {
+ double param = Discret.Parameter(i);
+ theParams.push_back( param );
+ }
+ return true;
+ }
+
+ case BEG_END_LENGTH: {
+
+ // geometric progression: SUM(n) = ( a1 - an * q ) / ( 1 - q ) = length
+
+ double a1 = _value[ BEG_LENGTH_IND ];
+ double an = _value[ END_LENGTH_IND ];
+ double q = ( length - a1 ) / ( length - an );
+
+ double U1 = theReverse ? l : f;
+ double Un = theReverse ? f : l;
+ double param = U1;
+ double eltSize = theReverse ? -a1 : a1;
+ while ( 1 ) {
+ // computes a point on a curve <C3d> at the distance <eltSize>
+ // from the point of parameter <param>.
+ GCPnts_AbscissaPoint Discret( C3d, eltSize, param );
+ if ( !Discret.IsDone() ) break;
+ param = Discret.Parameter();
+ if ( param > f && param < l )
+ theParams.push_back( param );
+ else
+ break;
+ eltSize *= q;
+ }
+ compensateError( a1, an, U1, Un, length, C3d, theParams );
+ return true;
+ }
+
+ case ARITHMETIC_1D: {
+
+ // arithmetic progression: SUM(n) = ( an - a1 + q ) * ( a1 + an ) / ( 2 * q ) = length
+
+ double a1 = _value[ BEG_LENGTH_IND ];
+ double an = _value[ END_LENGTH_IND ];
+
+ double q = ( an - a1 ) / ( 2 *length/( a1 + an ) - 1 );
+ int n = int( 1 + ( an - a1 ) / q );
+
+ double U1 = theReverse ? l : f;
+ double Un = theReverse ? f : l;
+ double param = U1;
+ double eltSize = a1;
+ if ( theReverse ) {
+ eltSize = -eltSize;
+ q = -q;
+ }
+ while ( n-- > 0 && eltSize * ( Un - U1 ) > 0 ) {
+ // computes a point on a curve <C3d> at the distance <eltSize>
+ // from the point of parameter <param>.
+ GCPnts_AbscissaPoint Discret( C3d, eltSize, param );
+ if ( !Discret.IsDone() ) break;
+ param = Discret.Parameter();
+ if ( param > f && param < l )
+ theParams.push_back( param );
+ else
+ break;
+ eltSize += q;
+ }
+ compensateError( a1, an, U1, Un, length, C3d, theParams );
+
+ return true;
+ }
+
+ case DEFLECTION: {
+
+ GCPnts_UniformDeflection Discret(C3d, _value[ DEFLECTION_IND ], true);
+ if ( !Discret.IsDone() )
+ return false;
+
+ int NbPoints = Discret.NbPoints();
+ for ( int i = 2; i < NbPoints; i++ )
+ {
+ double param = Discret.Parameter(i);
+ theParams.push_back( param );
+ }
+ return true;
+
+ }
+
+ default:;
+ }
+
+ return false;
}
//=============================================================================
bool StdMeshers_Regular_1D::Compute(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape)
{
- MESSAGE("StdMeshers_Regular_1D::Compute");
-
- SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
- SMESH_subMesh *theSubMesh = aMesh.GetSubMesh(aShape);
-
- const TopoDS_Edge & EE = TopoDS::Edge(aShape);
- TopoDS_Edge E = TopoDS::Edge(EE.Oriented(TopAbs_FORWARD));
-
- double f, l;
- Handle(Geom_Curve) Curve = BRep_Tool::Curve(E, f, l);
-
- TopoDS_Vertex VFirst, VLast;
- TopExp::Vertices(E, VFirst, VLast); // Vfirst corresponds to f and Vlast to l
-
- double length = EdgeLength(E);
- //SCRUTE(length);
-
- double eltSize = 1;
-// if (_localLength > 0) eltSize = _localLength;
- if (_localLength > 0)
- {
- double nbseg = ceil(length / _localLength); // integer sup
- if (nbseg <= 0)
- nbseg = 1; // degenerated edge
- eltSize = length / nbseg;
- }
- else
- {
- ASSERT(_numberOfSegments > 0);
- eltSize = length / _numberOfSegments;
- }
-
- ASSERT(!VFirst.IsNull());
- SMDS_NodeIteratorPtr lid= aMesh.GetSubMesh(VFirst)->GetSubMeshDS()->GetNodes();
- const SMDS_MeshNode * idFirst = lid->next();
-
- ASSERT(!VLast.IsNull());
- lid=aMesh.GetSubMesh(VLast)->GetSubMeshDS()->GetNodes();
- const SMDS_MeshNode * idLast = lid->next();
-
- if (!Curve.IsNull())
- {
- GeomAdaptor_Curve C3d(Curve);
- GCPnts_UniformAbscissa Discret(C3d, eltSize, f, l);
- int NbPoints = Discret.NbPoints();
- //MESSAGE("nb points on edge : "<<NbPoints);
-
- // edge extrema (indexes : 1 & NbPoints) already in SMDS (TopoDS_Vertex)
- // only internal nodes receive an edge position with param on curve
-
- const SMDS_MeshNode * idPrev = idFirst;
- for (int i = 2; i < NbPoints; i++)
- {
- double param = Discret.Parameter(i);
-
- if (_numberOfSegments > 1)
- {
- double epsilon = 0.001;
- if (fabs(_scaleFactor - 1.0) > epsilon)
- {
- double alpha =
- pow(_scaleFactor, 1.0 / (_numberOfSegments - 1));
- double d =
- length * (1 - pow(alpha, i - 1)) / (1 - pow(alpha,
- _numberOfSegments));
- param = d;
- }
- }
-
- gp_Pnt P = Curve->Value(param);
-
- //Add the Node in the DataStructure
- //MESSAGE("point "<<nodeId<<" "<<P.X()<<" "<<P.Y()<<" "<<P.Z()<<" - "<<i<<" "<<param);
- SMDS_MeshNode * node = meshDS->AddNode(P.X(), P.Y(), P.Z());
- meshDS->SetNodeOnEdge(node, E);
-
- // **** edgePosition associe au point = param.
- SMDS_EdgePosition* epos =
- dynamic_cast<SMDS_EdgePosition *>(node->GetPosition().get());
- epos->SetUParameter(param);
-
- SMDS_MeshEdge * edge = meshDS->AddEdge(idPrev, node);
- meshDS->SetMeshElementOnShape(edge, E);
- idPrev = node;
- }
- SMDS_MeshEdge* edge = meshDS->AddEdge(idPrev, idLast);
- meshDS->SetMeshElementOnShape(edge, E);
- }
- else
- {
-// MESSAGE ("Edge Degeneree non traitee --- arret");
-// ASSERT(0);
- if (BRep_Tool::Degenerated(E))
- {
- // Edge is a degenerated Edge : We put n = 5 points on the edge.
- int NbPoints = 5;
- BRep_Tool::Range(E, f, l);
- double du = (l - f) / (NbPoints - 1);
- MESSAGE("************* Degenerated edge! *****************");
-
- TopoDS_Vertex V1, V2;
- TopExp::Vertices(E, V1, V2);
- gp_Pnt P = BRep_Tool::Pnt(V1);
-
- const SMDS_MeshNode * idPrev = idFirst;
- for (int i = 2; i < NbPoints; i++)
- {
- double param = f + (i - 1) * du;
- SMDS_MeshNode * node = meshDS->AddNode(P.X(), P.Y(), P.Z());
- meshDS->SetNodeOnEdge(node, E);
-
-// Handle (SMDS_EdgePosition) epos
-// = new SMDS_EdgePosition(theSubMesh->GetId(),param);
-// node->SetPosition(epos);
- SMDS_EdgePosition* epos =
- dynamic_cast<SMDS_EdgePosition*>(node->GetPosition().get());
- epos->SetUParameter(param);
-
- SMDS_MeshEdge * edge = meshDS->AddEdge(idPrev, node);
- meshDS->SetMeshElementOnShape(edge, E);
- idPrev = node;
- }
- SMDS_MeshEdge * edge = meshDS->AddEdge(idPrev, idLast);
- meshDS->SetMeshElementOnShape(edge, E);
- }
- else
- ASSERT(0);
- }
- return true;
+ MESSAGE("StdMeshers_Regular_1D::Compute");
+
+ if ( _hypType == NONE )
+ return false;
+
+ SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
+ aMesh.GetSubMesh(aShape);
+
+ const TopoDS_Edge & EE = TopoDS::Edge(aShape);
+ TopoDS_Edge E = TopoDS::Edge(EE.Oriented(TopAbs_FORWARD));
+
+ double f, l;
+ Handle(Geom_Curve) Curve = BRep_Tool::Curve(E, f, l);
+
+ TopoDS_Vertex VFirst, VLast;
+ TopExp::Vertices(E, VFirst, VLast); // Vfirst corresponds to f and Vlast to l
+
+ ASSERT(!VFirst.IsNull());
+ SMDS_NodeIteratorPtr lid= aMesh.GetSubMesh(VFirst)->GetSubMeshDS()->GetNodes();
+ if (!lid->more())
+ {
+ MESSAGE (" NO NODE BUILT ON VERTEX ");
+ return false;
+ }
+ const SMDS_MeshNode * idFirst = lid->next();
+
+ ASSERT(!VLast.IsNull());
+ lid=aMesh.GetSubMesh(VLast)->GetSubMeshDS()->GetNodes();
+ if (!lid->more())
+ {
+ MESSAGE (" NO NODE BUILT ON VERTEX ");
+ return false;
+ }
+ const SMDS_MeshNode * idLast = lid->next();
+
+ if (!Curve.IsNull())
+ {
+ list< double > params;
+ bool reversed = false;
+ if ( !_mainEdge.IsNull() )
+ reversed = aMesh.IsReversedInChain( EE, _mainEdge );
+ try {
+ if ( ! computeInternalParameters( E, params, reversed ))
+ return false;
+ }
+ catch ( Standard_Failure ) {
+ return false;
+ }
+
+ // edge extrema (indexes : 1 & NbPoints) already in SMDS (TopoDS_Vertex)
+ // only internal nodes receive an edge position with param on curve
+
+ const SMDS_MeshNode * idPrev = idFirst;
+
+ for (list<double>::iterator itU = params.begin(); itU != params.end(); itU++)
+ {
+ double param = *itU;
+ gp_Pnt P = Curve->Value(param);
+
+ //Add the Node in the DataStructure
+ SMDS_MeshNode * node = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnEdge(node, E);
+
+ // **** edgePosition associe au point = param.
+ SMDS_EdgePosition* epos =
+ dynamic_cast<SMDS_EdgePosition *>(node->GetPosition().get());
+ epos->SetUParameter(param);
+
+ SMDS_MeshEdge * edge = meshDS->AddEdge(idPrev, node);
+ meshDS->SetMeshElementOnShape(edge, E);
+ idPrev = node;
+ }
+ SMDS_MeshEdge* edge = meshDS->AddEdge(idPrev, idLast);
+ meshDS->SetMeshElementOnShape(edge, E);
+ }
+ else
+ {
+ // Edge is a degenerated Edge : We put n = 5 points on the edge.
+ int NbPoints = 5;
+ BRep_Tool::Range(E, f, l);
+ double du = (l - f) / (NbPoints - 1);
+ //MESSAGE("************* Degenerated edge! *****************");
+
+ TopoDS_Vertex V1, V2;
+ TopExp::Vertices(E, V1, V2);
+ gp_Pnt P = BRep_Tool::Pnt(V1);
+
+ const SMDS_MeshNode * idPrev = idFirst;
+ for (int i = 2; i < NbPoints; i++)
+ {
+ double param = f + (i - 1) * du;
+ SMDS_MeshNode * node = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnEdge(node, E);
+
+ SMDS_EdgePosition* epos =
+ dynamic_cast<SMDS_EdgePosition*>(node->GetPosition().get());
+ epos->SetUParameter(param);
+
+ SMDS_MeshEdge * edge = meshDS->AddEdge(idPrev, node);
+ meshDS->SetMeshElementOnShape(edge, E);
+ idPrev = node;
+ }
+ SMDS_MeshEdge * edge = meshDS->AddEdge(idPrev, idLast);
+ meshDS->SetMeshElementOnShape(edge, E);
+ }
+ return true;
+}
+
+//=============================================================================
+/*!
+ * See comments in SMESH_Algo.cxx
+ */
+//=============================================================================
+
+const list <const SMESHDS_Hypothesis *> & StdMeshers_Regular_1D::GetUsedHypothesis(
+ SMESH_Mesh & aMesh, const TopoDS_Shape & aShape)
+{
+ _usedHypList.clear();
+ _usedHypList = GetAppliedHypothesis(aMesh, aShape); // copy
+ int nbHyp = _usedHypList.size();
+ _mainEdge.Nullify();
+ if (nbHyp == 0)
+ {
+ // Check, if propagated from some other edge
+ if (aShape.ShapeType() == TopAbs_EDGE &&
+ aMesh.IsPropagatedHypothesis(aShape, _mainEdge))
+ {
+ // Propagation of 1D hypothesis from <aMainEdge> on this edge
+ //_usedHypList = GetAppliedHypothesis(aMesh, _mainEdge); // copy
+ // use a general method in order not to nullify _mainEdge
+ _usedHypList = SMESH_Algo::GetUsedHypothesis(aMesh, _mainEdge); // copy
+ nbHyp = _usedHypList.size();
+ }
+ }
+ if (nbHyp == 0)
+ {
+ TopTools_ListIteratorOfListOfShape ancIt( aMesh.GetAncestors( aShape ));
+ for (; ancIt.More(); ancIt.Next())
+ {
+ const TopoDS_Shape& ancestor = ancIt.Value();
+ _usedHypList = GetAppliedHypothesis(aMesh, ancestor); // copy
+ nbHyp = _usedHypList.size();
+ if (nbHyp == 1)
+ break;
+ }
+ }
+ if (nbHyp > 1)
+ _usedHypList.clear(); //only one compatible hypothesis allowed
+ return _usedHypList;
}
//=============================================================================
