-// Copyright (C) 2007-2013 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2014 CEA/DEN, EDF R&D, OPEN CASCADE
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
-// version 2.1 of the License.
+// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
#include "SMESH_ControlsDef.hxx"
#include "SMESH_Gen.hxx"
#include "SMESH_Group.hxx"
+#include "SMESH_HypoFilter.hxx"
#include "SMESH_Mesh.hxx"
#include "SMESH_MeshAlgos.hxx"
#include "SMESH_MesherHelper.hxx"
#include "StdMeshers_FaceSide.hxx"
#include <BRepAdaptor_Curve2d.hxx>
+#include <BRepAdaptor_Surface.hxx>
+#include <BRepLProp_SLProps.hxx>
#include <BRep_Tool.hxx>
#include <Bnd_B2d.hxx>
#include <Bnd_B3d.hxx>
#include <Geom2d_Line.hxx>
#include <Geom2d_TrimmedCurve.hxx>
#include <GeomAdaptor_Curve.hxx>
+#include <GeomLib.hxx>
#include <Geom_Circle.hxx>
#include <Geom_Curve.hxx>
#include <Geom_Line.hxx>
#include <Geom_TrimmedCurve.hxx>
#include <Precision.hxx>
#include <Standard_ErrorHandler.hxx>
+#include <Standard_Failure.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_IndexedMapOfShape.hxx>
+#include <TopTools_ListOfShape.hxx>
#include <TopTools_MapOfShape.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Edge.hxx>
enum UIndex { U_TGT = 1, U_SRC, LEN_TGT };
+ const double theMinSmoothCosin = 0.1;
+ const double theSmoothThickToElemSizeRatio = 0.3;
+
+ bool needSmoothing( double cosin, double tgtThick, double elemSize )
+ {
+ return cosin * tgtThick > theSmoothThickToElemSizeRatio * elemSize;
+ }
+
/*!
* \brief SMESH_ProxyMesh computed by _ViscousBuilder for a SOLID.
* It is stored in a SMESH_subMesh of the SOLID as SMESH_subMeshEventListenerData
c = new _Curvature;
c->_r = avgDist * avgDist / avgNormProj;
c->_k = avgDist * avgDist / c->_r / c->_r;
+ //c->_k = avgNormProj / c->_r;
c->_k *= ( c->_r < 0 ? 1/1.1 : 1.1 ); // not to be too restrictive
c->_h2lenRatio = avgNormProj / ( avgDist + avgDist );
}
double lenDelta(double len) const { return _k * ( _r + len ); }
double lenDeltaByDist(double dist) const { return dist * _h2lenRatio; }
};
- struct _LayerEdge;
- //--------------------------------------------------------------------------------
- /*!
- * Structure used to smooth a _LayerEdge (master) based on an EDGE.
- */
- struct _2NearEdges
- {
- // target nodes of 2 neighbour _LayerEdge's based on the same EDGE
- const SMDS_MeshNode* _nodes[2];
- // vectors from source nodes of 2 _LayerEdge's to the source node of master _LayerEdge
- //gp_XYZ _vec[2];
- double _wgt[2]; // weights of _nodes
- _LayerEdge* _edges[2];
-
- // normal to plane passing through _LayerEdge._normal and tangent of EDGE
- gp_XYZ* _plnNorm;
-
- _2NearEdges() { _nodes[0]=_nodes[1]=0; _plnNorm = 0; }
- void reverse() {
- std::swap( _nodes[0], _nodes[1] );
- std::swap( _wgt[0], _wgt[1] );
- }
- };
+ struct _2NearEdges;
//--------------------------------------------------------------------------------
/*!
* \brief Edge normal to surface, connecting a node on solid surface (_nodes[0])
gp_XYZ _normal; // to solid surface
vector<gp_XYZ> _pos; // points computed during inflation
- double _len; // length achived with the last step
+ double _len; // length achived with the last inflation step
double _cosin; // of angle (_normal ^ surface)
double _lenFactor; // to compute _len taking _cosin into account
void SetDataByNeighbors( const SMDS_MeshNode* n1,
const SMDS_MeshNode* n2,
SMESH_MesherHelper& helper);
- void InvalidateStep( int curStep );
+ void InvalidateStep( int curStep, bool restoreLength=false );
bool Smooth(int& badNb);
bool SmoothOnEdge(Handle(Geom_Surface)& surface,
const TopoDS_Face& F,
double& dist,
const double& epsilon) const;
gp_Ax1 LastSegment(double& segLen) const;
- bool IsOnEdge() const { return _2neibors; }
- void Copy( _LayerEdge& other, SMESH_MesherHelper& helper );
- void SetCosin( double cosin );
+ gp_XY LastUV( const TopoDS_Face& F ) const;
+ bool IsOnEdge() const { return _2neibors; }
+ gp_XYZ Copy( _LayerEdge& other, SMESH_MesherHelper& helper );
+ void SetCosin( double cosin );
};
struct _LayerEdgeCmp
{
return cmpNodes ? ( e1->_nodes[0]->GetID() < e2->_nodes[0]->GetID()) : ( e1 < e2 );
}
};
+ struct _LayerEdge;
+ //--------------------------------------------------------------------------------
+ /*!
+ * Structure used to smooth a _LayerEdge based on an EDGE.
+ */
+ struct _2NearEdges
+ {
+ double _wgt [2]; // weights of _nodes
+ _LayerEdge* _edges[2];
+
+ // normal to plane passing through _LayerEdge._normal and tangent of EDGE
+ gp_XYZ* _plnNorm;
+
+ _2NearEdges() { _edges[0]=_edges[1]=0; _plnNorm = 0; }
+ const SMDS_MeshNode* tgtNode(bool is2nd) {
+ return _edges[is2nd] ? _edges[is2nd]->_nodes.back() : 0;
+ }
+ const SMDS_MeshNode* srcNode(bool is2nd) {
+ return _edges[is2nd] ? _edges[is2nd]->_nodes[0] : 0;
+ }
+ void reverse() {
+ std::swap( _wgt [0], _wgt [1] );
+ std::swap( _edges[0], _edges[1] );
+ }
+ };
+ //--------------------------------------------------------------------------------
+ /*!
+ * \brief Convex FACE whose radius of curvature is less than the thickness of
+ * layers. It is used to detect distortion of prisms based on a convex
+ * FACE and to update normals to enable further increasing the thickness
+ */
+ struct _ConvexFace
+ {
+ TopoDS_Face _face;
+
+ // edges whose _simplices are used to detect prism destorsion
+ vector< _LayerEdge* > _simplexTestEdges;
+
+ // map a sub-shape to it's index in _SolidData::_endEdgeOnShape vector
+ map< TGeomID, int > _subIdToEdgeEnd;
+
+ bool _normalsFixed;
+
+ bool GetCenterOfCurvature( _LayerEdge* ledge,
+ BRepLProp_SLProps& surfProp,
+ SMESH_MesherHelper& helper,
+ gp_Pnt & center ) const;
+ bool CheckPrisms() const;
+ };
+
//--------------------------------------------------------------------------------
typedef map< const SMDS_MeshNode*, _LayerEdge*, TIDCompare > TNode2Edge;
{
TopoDS_Shape _solid;
const StdMeshers_ViscousLayers* _hyp;
+ TopoDS_Shape _hypShape;
_MeshOfSolid* _proxyMesh;
set<TGeomID> _reversedFaceIds;
+ set<TGeomID> _ignoreFaceIds; // WOL FACEs and FACEs of other SOLIDS
- double _stepSize, _stepSizeCoeff;
+ double _stepSize, _stepSizeCoeff, _geomSize;
const SMDS_MeshNode* _stepSizeNodes[2];
- TNode2Edge _n2eMap;
+ TNode2Edge _n2eMap; // nodes and _LayerEdge's based on them
+
+ // map to find _n2eMap of another _SolidData by a shrink shape shared by two _SolidData's
+ map< TGeomID, TNode2Edge* > _s2neMap;
// edges of _n2eMap. We keep same data in two containers because
// iteration over the map is 5 time longer than over the vector
vector< _LayerEdge* > _edges;
- // key: an id of shape (EDGE or VERTEX) shared by a FACE with
- // layers and a FACE w/o layers
+ // key: an id of shape (EDGE or VERTEX) shared by a FACE with
+ // layers and a FACE w/o layers
// value: the shape (FACE or EDGE) to shrink mesh on.
- // _LayerEdge's basing on nodes on key shape are inflated along the value shape
+ // _LayerEdge's basing on nodes on key shape are inflated along the value shape
map< TGeomID, TopoDS_Shape > _shrinkShape2Shape;
- // FACE's WOL, srink on which is forbiden due to algo on the adjacent SOLID
- set< TGeomID > _noShrinkFaces;
+ // Convex FACEs whose radius of curvature is less than the thickness of layers
+ map< TGeomID, _ConvexFace > _convexFaces;
+
+ // shapes (EDGEs and VERTEXes) srink from which is forbiden due to collisions with
+ // the adjacent SOLID
+ set< TGeomID > _noShrinkShapes;
- // <EDGE to smooth on> to <it's curve>
+ // <EDGE to smooth on> to <it's curve> -- for analytic smooth
map< TGeomID,Handle(Geom_Curve)> _edge2curve;
- // end indices in _edges of _LayerEdge on one shape to smooth
- vector< int > _endEdgeToSmooth;
+ // end indices in _edges of _LayerEdge on each shape, first go shapes to smooth
+ vector< int > _endEdgeOnShape;
+ int _nbShapesToSmooth;
double _epsilon; // precision for SegTriaInter()
- int _index; // for debug
+ TGeomID _index; // SOLID id, for debug
_SolidData(const TopoDS_Shape& s=TopoDS_Shape(),
const StdMeshers_ViscousLayers* h=0,
- _MeshOfSolid* m=0) :_solid(s), _hyp(h), _proxyMesh(m) {}
+ const TopoDS_Shape& hs=TopoDS_Shape(),
+ _MeshOfSolid* m=0)
+ :_solid(s), _hyp(h), _hypShape(hs), _proxyMesh(m) {}
~_SolidData();
Handle(Geom_Curve) CurveForSmooth( const TopoDS_Edge& E,
Handle(Geom_Surface)& surface,
const TopoDS_Face& F,
SMESH_MesherHelper& helper);
+
+ void SortOnEdge( const TopoDS_Edge& E,
+ const int iFrom,
+ const int iTo,
+ SMESH_MesherHelper& helper);
+
+ _ConvexFace* GetConvexFace( const TGeomID faceID )
+ {
+ map< TGeomID, _ConvexFace >::iterator id2face = _convexFaces.find( faceID );
+ return id2face == _convexFaces.end() ? 0 : & id2face->second;
+ }
+ void GetEdgesOnShape( size_t end, int & iBeg, int & iEnd )
+ {
+ iBeg = end > 0 ? _endEdgeOnShape[ end-1 ] : 0;
+ iEnd = _endEdgeOnShape[ end ];
+ }
+
+ bool GetShapeEdges(const TGeomID shapeID, size_t& edgeEnd, int* iBeg=0, int* iEnd=0 ) const;
+
+ void AddShapesToSmooth( const set< TGeomID >& shapeIDs );
+ };
+ //--------------------------------------------------------------------------------
+ /*!
+ * \brief Container of centers of curvature at nodes on an EDGE bounding _ConvexFace
+ */
+ struct _CentralCurveOnEdge
+ {
+ bool _isDegenerated;
+ vector< gp_Pnt > _curvaCenters;
+ vector< _LayerEdge* > _ledges;
+ vector< gp_XYZ > _normals; // new normal for each of _ledges
+ vector< double > _segLength2;
+
+ TopoDS_Edge _edge;
+ TopoDS_Face _adjFace;
+ bool _adjFaceToSmooth;
+
+ void Append( const gp_Pnt& center, _LayerEdge* ledge )
+ {
+ if ( _curvaCenters.size() > 0 )
+ _segLength2.push_back( center.SquareDistance( _curvaCenters.back() ));
+ _curvaCenters.push_back( center );
+ _ledges.push_back( ledge );
+ _normals.push_back( ledge->_normal );
+ }
+ bool FindNewNormal( const gp_Pnt& center, gp_XYZ& newNormal );
+ void SetShapes( const TopoDS_Edge& edge,
+ const _ConvexFace& convFace,
+ const _SolidData& data,
+ SMESH_MesherHelper& helper);
};
//--------------------------------------------------------------------------------
/*!
struct _SmoothNode
{
const SMDS_MeshNode* _node;
- //vector<const SMDS_MeshNode*> _nodesAround;
vector<_Simplex> _simplices; // for quality check
- enum SmoothType { LAPLACIAN, CENTROIDAL, ANGULAR };
+ enum SmoothType { LAPLACIAN, CENTROIDAL, ANGULAR, TFI };
bool Smooth(int& badNb,
Handle(Geom_Surface)& surface,
bool makeLayer(_SolidData& data);
bool setEdgeData(_LayerEdge& edge, const set<TGeomID>& subIds,
SMESH_MesherHelper& helper, _SolidData& data);
+ gp_XYZ getFaceNormal(const SMDS_MeshNode* n,
+ const TopoDS_Face& face,
+ SMESH_MesherHelper& helper,
+ bool& isOK,
+ bool shiftInside=false);
+ gp_XYZ getWeigthedNormal( const SMDS_MeshNode* n,
+ std::pair< TGeomID, gp_XYZ > fId2Normal[],
+ const int nbFaces );
bool findNeiborsOnEdge(const _LayerEdge* edge,
const SMDS_MeshNode*& n1,
const SMDS_MeshNode*& n2,
const set<TGeomID>& ingnoreShapes,
const _SolidData* dataToCheckOri = 0,
const bool toSort = false);
+ void findSimplexTestEdges( _SolidData& data,
+ vector< vector<_LayerEdge*> >& edgesByGeom);
+ void computeGeomSize( _SolidData& data );
bool sortEdges( _SolidData& data,
vector< vector<_LayerEdge*> >& edgesByGeom);
+ void limitStepSizeByCurvature( _SolidData& data );
void limitStepSize( _SolidData& data,
const SMDS_MeshElement* face,
- const double cosin);
+ const _LayerEdge* maxCosinEdge );
void limitStepSize( _SolidData& data, const double minSize);
bool inflate(_SolidData& data);
bool smoothAndCheck(_SolidData& data, const int nbSteps, double & distToIntersection);
Handle(Geom_Surface)& surface,
const TopoDS_Face& F,
SMESH_MesherHelper& helper);
- bool updateNormals( _SolidData& data, SMESH_MesherHelper& helper );
+ bool updateNormals( _SolidData& data, SMESH_MesherHelper& helper, int stepNb );
+ bool updateNormalsOfConvexFaces( _SolidData& data,
+ SMESH_MesherHelper& helper,
+ int stepNb );
bool refine(_SolidData& data);
bool shrink();
bool prepareEdgeToShrink( _LayerEdge& edge, const TopoDS_Face& F,
SMESH_MesherHelper& helper,
const SMESHDS_SubMesh* faceSubMesh );
- void fixBadFaces(const TopoDS_Face& F, SMESH_MesherHelper& helper);
+ void restoreNoShrink( _LayerEdge& edge ) const;
+ void fixBadFaces(const TopoDS_Face& F,
+ SMESH_MesherHelper& helper,
+ const bool is2D,
+ const int step,
+ set<const SMDS_MeshNode*> * involvedNodes=NULL);
bool addBoundaryElements();
bool error( const string& text, int solidID=-1 );
- SMESHDS_Mesh* getMeshDS() { return _mesh->GetMeshDS(); }
+ SMESHDS_Mesh* getMeshDS() const { return _mesh->GetMeshDS(); }
// debug
void makeGroupOfLE();
SMESH_ComputeErrorPtr _error;
vector< _SolidData > _sdVec;
- set<TGeomID> _ignoreShapeIds;
int _tmpFaceID;
};
//--------------------------------------------------------------------------------
* We can't use SMDS_FaceOfNodes since it's impossible to set it's ID which is
* needed because SMESH_ElementSearcher internaly uses set of elements sorted by ID
*/
- struct TmpMeshFace : public SMDS_MeshElement
+ struct _TmpMeshFace : public SMDS_MeshElement
{
vector<const SMDS_MeshNode* > _nn;
- TmpMeshFace( const vector<const SMDS_MeshNode*>& nodes, int id):
- SMDS_MeshElement(id), _nn(nodes) {}
+ _TmpMeshFace( const vector<const SMDS_MeshNode*>& nodes, int id, int faceID=-1):
+ SMDS_MeshElement(id), _nn(nodes) { setShapeId(faceID); }
virtual const SMDS_MeshNode* GetNode(const int ind) const { return _nn[ind]; }
virtual SMDSAbs_ElementType GetType() const { return SMDSAbs_Face; }
virtual vtkIdType GetVtkType() const { return -1; }
virtual SMDSAbs_EntityType GetEntityType() const { return SMDSEntity_Last; }
- virtual SMDSAbs_GeometryType GetGeomType() const { return SMDSGeom_TRIANGLE; }
-virtual SMDS_ElemIteratorPtr elementsIterator(SMDSAbs_ElementType type) const
+ virtual SMDSAbs_GeometryType GetGeomType() const
+ { return _nn.size() == 3 ? SMDSGeom_TRIANGLE : SMDSGeom_QUADRANGLE; }
+ virtual SMDS_ElemIteratorPtr elementsIterator(SMDSAbs_ElementType) const
{ return SMDS_ElemIteratorPtr( new SMDS_NodeVectorElemIterator( _nn.begin(), _nn.end()));}
};
//--------------------------------------------------------------------------------
/*!
* \brief Class of temporary mesh face storing _LayerEdge it's based on
*/
- struct TmpMeshFaceOnEdge : public TmpMeshFace
+ struct _TmpMeshFaceOnEdge : public _TmpMeshFace
{
_LayerEdge *_le1, *_le2;
- TmpMeshFaceOnEdge( _LayerEdge* le1, _LayerEdge* le2, int ID ):
- TmpMeshFace( vector<const SMDS_MeshNode*>(4), ID ), _le1(le1), _le2(le2)
+ _TmpMeshFaceOnEdge( _LayerEdge* le1, _LayerEdge* le2, int ID ):
+ _TmpMeshFace( vector<const SMDS_MeshNode*>(4), ID ), _le1(le1), _le2(le2)
{
_nn[0]=_le1->_nodes[0];
_nn[1]=_le1->_nodes.back();
_nn[3]=_le2->_nodes[0];
}
};
+ //--------------------------------------------------------------------------------
+ /*!
+ * \brief Retriever of node coordinates either directly of from a surface by node UV.
+ * \warning Location of a surface is ignored
+ */
+ struct _NodeCoordHelper
+ {
+ SMESH_MesherHelper& _helper;
+ const TopoDS_Face& _face;
+ Handle(Geom_Surface) _surface;
+ gp_XYZ (_NodeCoordHelper::* _fun)(const SMDS_MeshNode* n) const;
+
+ _NodeCoordHelper(const TopoDS_Face& F, SMESH_MesherHelper& helper, bool is2D)
+ : _helper( helper ), _face( F )
+ {
+ if ( is2D )
+ {
+ TopLoc_Location loc;
+ _surface = BRep_Tool::Surface( _face, loc );
+ }
+ if ( _surface.IsNull() )
+ _fun = & _NodeCoordHelper::direct;
+ else
+ _fun = & _NodeCoordHelper::byUV;
+ }
+ gp_XYZ operator()(const SMDS_MeshNode* n) const { return (this->*_fun)( n ); }
+
+ private:
+ gp_XYZ direct(const SMDS_MeshNode* n) const
+ {
+ return SMESH_TNodeXYZ( n );
+ }
+ gp_XYZ byUV (const SMDS_MeshNode* n) const
+ {
+ gp_XY uv = _helper.GetNodeUV( _face, n );
+ return _surface->Value( uv.X(), uv.Y() ).XYZ();
+ }
+ };
+
} // namespace VISCOUS_3D
+
+
//================================================================================
// StdMeshers_ViscousLayers hypothesis
//
StdMeshers_ViscousLayers::StdMeshers_ViscousLayers(int hypId, int studyId, SMESH_Gen* gen)
:SMESH_Hypothesis(hypId, studyId, gen),
- _isToIgnoreShapes(18), _nbLayers(1), _thickness(1), _stretchFactor(1)
+ _isToIgnoreShapes(1), _nbLayers(1), _thickness(1), _stretchFactor(1)
{
_name = StdMeshers_ViscousLayers::GetHypType();
_param_algo_dim = -3; // auxiliary hyp used by 3D algos
<< " " << _thickness
<< " " << _stretchFactor
<< " " << _shapeIds.size();
- for ( unsigned i = 0; i < _shapeIds.size(); ++i )
+ for ( size_t i = 0; i < _shapeIds.size(); ++i )
save << " " << _shapeIds[i];
save << " " << !_isToIgnoreShapes; // negate to keep the behavior in old studies.
return save;
gp_Vec dir;
double f,l; gp_Pnt p;
Handle(Geom_Curve) c = BRep_Tool::Curve( E, f, l );
+ if ( c.IsNull() ) return gp_XYZ( 1e100, 1e100, 1e100 );
double u = helper.GetNodeU( E, atNode );
c->D1( u, p, dir );
return dir.XYZ();
}
//--------------------------------------------------------------------------------
+ gp_XYZ getFaceDir( const TopoDS_Face& F, const TopoDS_Vertex& fromV,
+ const SMDS_MeshNode* node, SMESH_MesherHelper& helper, bool& ok,
+ double* cosin=0);
+ //--------------------------------------------------------------------------------
gp_XYZ getFaceDir( const TopoDS_Face& F, const TopoDS_Edge& fromE,
const SMDS_MeshNode* node, SMESH_MesherHelper& helper, bool& ok)
{
+ double f,l;
+ Handle(Geom_Curve) c = BRep_Tool::Curve( fromE, f, l );
+ if ( c.IsNull() )
+ {
+ TopoDS_Vertex v = helper.IthVertex( 0, fromE );
+ return getFaceDir( F, v, node, helper, ok );
+ }
gp_XY uv = helper.GetNodeUV( F, node, 0, &ok );
Handle(Geom_Surface) surface = BRep_Tool::Surface( F );
gp_Pnt p; gp_Vec du, dv, norm;
surface->D1( uv.X(),uv.Y(), p, du,dv );
norm = du ^ dv;
- double f,l;
- Handle(Geom_Curve) c = BRep_Tool::Curve( fromE, f, l );
double u = helper.GetNodeU( fromE, node, 0, &ok );
c->D1( u, p, du );
TopAbs_Orientation o = helper.GetSubShapeOri( F.Oriented(TopAbs_FORWARD), fromE);
if ( node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX &&
helper.IsClosedEdge( fromE ))
{
- if ( fabs(u-f) < fabs(u-l )) c->D1( l, p, dv );
- else c->D1( f, p, dv );
+ if ( fabs(u-f) < fabs(u-l)) c->D1( l, p, dv );
+ else c->D1( f, p, dv );
if ( o == TopAbs_REVERSED )
dv.Reverse();
gp_Vec dir2 = norm ^ dv;
//--------------------------------------------------------------------------------
gp_XYZ getFaceDir( const TopoDS_Face& F, const TopoDS_Vertex& fromV,
const SMDS_MeshNode* node, SMESH_MesherHelper& helper,
- bool& ok, double* cosin=0)
+ bool& ok, double* cosin)
{
+ TopoDS_Face faceFrw = F;
+ faceFrw.Orientation( TopAbs_FORWARD );
double f,l; TopLoc_Location loc;
- vector< TopoDS_Edge > edges; // sharing a vertex
- PShapeIteratorPtr eIt = helper.GetAncestors( fromV, *helper.GetMesh(), TopAbs_EDGE);
- while ( eIt->more())
- {
- const TopoDS_Edge* e = static_cast<const TopoDS_Edge*>( eIt->next() );
- if ( helper.IsSubShape( *e, F ) && !BRep_Tool::Curve( *e, loc,f,l).IsNull() )
- edges.push_back( *e );
- }
- gp_XYZ dir(0,0,0);
- if ( !( ok = ( edges.size() > 0 ))) return dir;
- // get average dir of edges going fromV
- gp_XYZ edgeDir;
- //if ( edges.size() > 1 )
- for ( unsigned i = 0; i < edges.size(); ++i )
+ TopoDS_Edge edges[2]; // sharing a vertex
+ int nbEdges = 0;
+ {
+ TopoDS_Vertex VV[2];
+ TopExp_Explorer exp( faceFrw, TopAbs_EDGE );
+ for ( ; exp.More() && nbEdges < 2; exp.Next() )
{
- edgeDir = getEdgeDir( edges[i], fromV );
- double size2 = edgeDir.SquareModulus();
- if ( size2 > numeric_limits<double>::min() )
- edgeDir /= sqrt( size2 );
- else
- ok = false;
- dir += edgeDir;
+ const TopoDS_Edge& e = TopoDS::Edge( exp.Current() );
+ if ( SMESH_Algo::isDegenerated( e )) continue;
+ TopExp::Vertices( e, VV[0], VV[1], /*CumOri=*/true );
+ if ( VV[1].IsSame( fromV )) {
+ nbEdges += edges[ 0 ].IsNull();
+ edges[ 0 ] = e;
+ }
+ else if ( VV[0].IsSame( fromV )) {
+ nbEdges += edges[ 1 ].IsNull();
+ edges[ 1 ] = e;
+ }
+ }
+ }
+ gp_XYZ dir(0,0,0), edgeDir[2];
+ if ( nbEdges == 2 )
+ {
+ // get dirs of edges going fromV
+ ok = true;
+ for ( size_t i = 0; i < nbEdges && ok; ++i )
+ {
+ edgeDir[i] = getEdgeDir( edges[i], fromV );
+ double size2 = edgeDir[i].SquareModulus();
+ if (( ok = size2 > numeric_limits<double>::min() ))
+ edgeDir[i] /= sqrt( size2 );
+ }
+ if ( !ok ) return dir;
+
+ // get angle between the 2 edges
+ gp_Vec faceNormal;
+ double angle = helper.GetAngle( edges[0], edges[1], faceFrw, fromV, &faceNormal );
+ if ( Abs( angle ) < 5 * M_PI/180 )
+ {
+ dir = ( faceNormal.XYZ() ^ edgeDir[0].Reversed()) + ( faceNormal.XYZ() ^ edgeDir[1] );
+ }
+ else
+ {
+ dir = edgeDir[0] + edgeDir[1];
+ if ( angle < 0 )
+ dir.Reverse();
}
- gp_XYZ fromEdgeDir = getFaceDir( F, edges[0], node, helper, ok );
- if ( edges.size() == 1 )
- dir = fromEdgeDir;
- else if ( dir.SquareModulus() < 0.1 ) // ~< 20 degrees
- dir = fromEdgeDir + getFaceDir( F, edges[1], node, helper, ok );
- else if ( dir * fromEdgeDir < 0 )
- dir *= -1;
- if ( ok )
- {
- //dir /= edges.size();
if ( cosin ) {
- double angle = gp_Vec( edgeDir ).Angle( dir );
- *cosin = cos( angle );
+ double angle = gp_Vec( edgeDir[0] ).Angle( dir );
+ *cosin = Cos( angle );
}
}
+ else if ( nbEdges == 1 )
+ {
+ dir = getFaceDir( faceFrw, edges[ edges[0].IsNull() ], node, helper, ok );
+ if ( cosin ) *cosin = 1.;
+ }
+ else
+ {
+ ok = false;
+ }
+
return dir;
}
//================================================================================
double u1 = intervals( i );
double u2 = intervals( i+1 );
curve.D2( 0.5*( u1+u2 ), p, drv1, drv2 );
- double cross = drv2 * drv1; //drv2 ^ drv1;
+ double cross = drv2 ^ drv1;
if ( E.Orientation() == TopAbs_REVERSED )
cross = -cross;
- isConvex = ( cross > -1e-9 );
+ isConvex = ( cross > 0.1 ); //-1e-9 );
}
- // check if concavity is strong enough to care about it
- //const double maxAngle = 5 * Standard_PI180;
if ( !isConvex )
{
//cout << "Concave FACE " << helper.GetMeshDS()->ShapeToIndex( F ) << endl;
return true;
- // map< double, const SMDS_MeshNode* > u2nodes;
- // if ( !SMESH_Algo::GetSortedNodesOnEdge( helper.GetMeshDS(), E,
- // /*ignoreMedium=*/true, u2nodes))
- // continue;
- // map< double, const SMDS_MeshNode* >::iterator u2n = u2nodes.begin();
- // gp_Pnt2d uvPrev = helper.GetNodeUV( F, u2n->second );
- // double uPrev = u2n->first;
- // for ( ++u2n; u2n != u2nodes.end(); ++u2n )
- // {
- // gp_Pnt2d uv = helper.GetNodeUV( F, u2n->second );
- // gp_Vec2d segmentDir( uvPrev, uv );
- // curve.D1( uPrev, p, drv1 );
- // try {
- // if ( fabs( segmentDir.Angle( drv1 )) > maxAngle )
- // return true;
- // }
- // catch ( ... ) {}
- // uvPrev = uv;
- // uPrev = u2n->first;
- // }
}
}
// check angles at VERTEXes
while ( SMESH_Algo::isDegenerated( wires[iW]->Edge( iE2 )))
iE2 = ( iE2 + 1 ) % nbEdges;
double angle = helper.GetAngle( wires[iW]->Edge( iE1 ),
- wires[iW]->Edge( iE2 ), F );
+ wires[iW]->Edge( iE2 ), F,
+ wires[iW]->FirstVertex( iE2 ));
if ( angle < -5. * M_PI / 180. )
return true;
}
}
return false;
}
+ //================================================================================
+ /*!
+ * \brief Computes mimimal distance of face in-FACE nodes from an EDGE
+ * \param [in] face - the mesh face to treat
+ * \param [in] nodeOnEdge - a node on the EDGE
+ * \param [out] faceSize - the computed distance
+ * \return bool - true if faceSize computed
+ */
+ //================================================================================
+
+ bool getDistFromEdge( const SMDS_MeshElement* face,
+ const SMDS_MeshNode* nodeOnEdge,
+ double & faceSize )
+ {
+ faceSize = Precision::Infinite();
+ bool done = false;
+
+ int nbN = face->NbCornerNodes();
+ int iOnE = face->GetNodeIndex( nodeOnEdge );
+ int iNext[2] = { SMESH_MesherHelper::WrapIndex( iOnE+1, nbN ),
+ SMESH_MesherHelper::WrapIndex( iOnE-1, nbN ) };
+ const SMDS_MeshNode* nNext[2] = { face->GetNode( iNext[0] ),
+ face->GetNode( iNext[1] ) };
+ gp_XYZ segVec, segEnd = SMESH_TNodeXYZ( nodeOnEdge ); // segment on EDGE
+ double segLen = -1.;
+ // look for two neighbor not in-FACE nodes of face
+ for ( int i = 0; i < 2; ++i )
+ {
+ if ( nNext[i]->GetPosition()->GetDim() != 2 &&
+ nNext[i]->GetID() < nodeOnEdge->GetID() )
+ {
+ // look for an in-FACE node
+ for ( int iN = 0; iN < nbN; ++iN )
+ {
+ if ( iN == iOnE || iN == iNext[i] )
+ continue;
+ SMESH_TNodeXYZ pInFace = face->GetNode( iN );
+ gp_XYZ v = pInFace - segEnd;
+ if ( segLen < 0 )
+ {
+ segVec = SMESH_TNodeXYZ( nNext[i] ) - segEnd;
+ segLen = segVec.Modulus();
+ }
+ double distToSeg = v.Crossed( segVec ).Modulus() / segLen;
+ faceSize = Min( faceSize, distToSeg );
+ done = true;
+ }
+ segLen = -1;
+ }
+ }
+ return done;
+ }
+
//--------------------------------------------------------------------------------
// DEBUG. Dump intermediate node positions into a python script
+ // HOWTO use: run python commands written in a console to see
+ // construction steps of viscous layers
#ifdef __myDEBUG
ofstream* py;
+ int theNbFunc;
struct PyDump {
PyDump() {
const char* fname = "/tmp/viscous.py";
py = new ofstream(fname);
*py << "import SMESH" << endl
<< "from salome.smesh import smeshBuilder" << endl
- << "smesh = smeshBuilder.New(salome.myStudy)" << endl
+ << "smesh = smeshBuilder.New(salome.myStudy)" << endl
<< "meshSO = smesh.GetCurrentStudy().FindObjectID('0:1:2:3')" << endl
- << "mesh = smesh.Mesh( meshSO.GetObject() )"<<endl;
+ << "mesh = smesh.Mesh( meshSO.GetObject() )"<<endl;
+ theNbFunc = 0;
}
void Finish() {
- if (py)
- *py << "mesh.MakeGroup('Viscous Prisms',VOLUME,FT_ElemGeomType,'=',Geom_PENTA)"<<endl;
+ if (py) {
+ *py << "mesh.GroupOnFilter(SMESH.VOLUME,'Viscous Prisms',"
+ "smesh.GetFilter(SMESH.VOLUME,SMESH.FT_ElemGeomType,'=',SMESH.Geom_PENTA))"<<endl;
+ *py << "mesh.GroupOnFilter(SMESH.VOLUME,'Neg Volumes',"
+ "smesh.GetFilter(SMESH.VOLUME,SMESH.FT_Volume3D,'<',0))"<<endl;
+ }
delete py; py=0;
}
- ~PyDump() { Finish(); }
+ ~PyDump() { Finish(); cout << "NB FUNCTIONS: " << theNbFunc << endl; }
};
#define dumpFunction(f) { _dumpFunction(f, __LINE__);}
#define dumpMove(n) { _dumpMove(n, __LINE__);}
#define dumpCmd(txt) { _dumpCmd(txt, __LINE__);}
void _dumpFunction(const string& fun, int ln)
- { if (py) *py<< "def "<<fun<<"(): # "<< ln <<endl; cout<<fun<<"()"<<endl;}
+ { if (py) *py<< "def "<<fun<<"(): # "<< ln <<endl; cout<<fun<<"()"<<endl; ++theNbFunc; }
void _dumpMove(const SMDS_MeshNode* n, int ln)
{ if (py) *py<< " mesh.MoveNode( "<<n->GetID()<< ", "<< n->X()
<< ", "<<n->Y()<<", "<< n->Z()<< ")\t\t # "<< ln <<endl; }
{ if (py) { *py<< " mesh.ChangeElemNodes( " << f->GetID()<<", [";
for ( int i=1; i < f->NbNodes(); ++i ) *py << f->GetNode(i-1)->GetID()<<", ";
*py << f->GetNode( f->NbNodes()-1 )->GetID() << " ])"<< endl; }}
+#define debugMsg( txt ) { cout << txt << " (line: " << __LINE__ << ")" << endl; }
#else
struct PyDump { void Finish() {} };
#define dumpFunction(f) f
#define dumpCmd(txt)
#define dumpFunctionEnd()
#define dumpChangeNodes(f)
+#define debugMsg( txt ) {}
#endif
}
bool _ViscousBuilder::error(const string& text, int solidId )
{
+ const string prefix = string("Viscous layers builder: ");
_error->myName = COMPERR_ALGO_FAILED;
- _error->myComment = string("Viscous layers builder: ") + text;
+ _error->myComment = prefix + text;
if ( _mesh )
{
SMESH_subMesh* sm = _mesh->GetSubMeshContaining( solidId );
if ( !sm && !_sdVec.empty() )
- sm = _mesh->GetSubMeshContaining( _sdVec[0]._index );
+ sm = _mesh->GetSubMeshContaining( solidId = _sdVec[0]._index );
if ( sm && sm->GetSubShape().ShapeType() == TopAbs_SOLID )
{
SMESH_ComputeErrorPtr& smError = sm->GetComputeError();
if ( smError && smError->myAlgo )
_error->myAlgo = smError->myAlgo;
smError = _error;
+ sm->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
+ }
+ // set KO to all solids
+ for ( size_t i = 0; i < _sdVec.size(); ++i )
+ {
+ if ( _sdVec[i]._index == solidId )
+ continue;
+ sm = _mesh->GetSubMesh( _sdVec[i]._solid );
+ if ( !sm->IsEmpty() )
+ continue;
+ SMESH_ComputeErrorPtr& smError = sm->GetComputeError();
+ if ( !smError || smError->IsOK() )
+ {
+ smError = SMESH_ComputeError::New( COMPERR_ALGO_FAILED, prefix + "failed");
+ sm->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
+ }
}
}
makeGroupOfLE(); // debug
if ( !findFacesWithLayers() )
return _error;
- for ( unsigned i = 0; i < _sdVec.size(); ++i )
+ for ( size_t i = 0; i < _sdVec.size(); ++i )
{
if ( ! makeLayer(_sdVec[i]) )
return _error;
_sdVec.reserve( allSolids.Extent());
SMESH_Gen* gen = _mesh->GetGen();
+ SMESH_HypoFilter filter;
for ( int i = 1; i <= allSolids.Extent(); ++i )
{
// find StdMeshers_ViscousLayers hyp assigned to the i-th solid
viscHyp = dynamic_cast<const StdMeshers_ViscousLayers*>( *hyp );
if ( viscHyp )
{
+ TopoDS_Shape hypShape;
+ filter.Init( filter.Is( viscHyp ));
+ _mesh->GetHypothesis( allSolids(i), filter, true, &hypShape );
+
_MeshOfSolid* proxyMesh = _ViscousListener::GetSolidMesh( _mesh,
allSolids(i),
/*toCreate=*/true);
- _sdVec.push_back( _SolidData( allSolids(i), viscHyp, proxyMesh ));
+ _sdVec.push_back( _SolidData( allSolids(i), viscHyp, hypShape, proxyMesh ));
_sdVec.back()._index = getMeshDS()->ShapeToIndex( allSolids(i));
}
}
bool _ViscousBuilder::findFacesWithLayers()
{
+ SMESH_MesherHelper helper( *_mesh );
+ TopExp_Explorer exp;
+ TopTools_IndexedMapOfShape solids;
+
// collect all faces to ignore defined by hyp
- vector<TopoDS_Shape> ignoreFaces;
- for ( unsigned i = 0; i < _sdVec.size(); ++i )
+ for ( size_t i = 0; i < _sdVec.size(); ++i )
{
+ solids.Add( _sdVec[i]._solid );
+
vector<TGeomID> ids = _sdVec[i]._hyp->GetBndShapes();
- for ( unsigned i = 0; i < ids.size(); ++i )
+ if ( _sdVec[i]._hyp->IsToIgnoreShapes() ) // FACEs to ignore are given
{
- const TopoDS_Shape& s = getMeshDS()->IndexToShape( ids[i] );
- if ( !s.IsNull() && s.ShapeType() == TopAbs_FACE )
+ for ( size_t ii = 0; ii < ids.size(); ++ii )
{
- _ignoreShapeIds.insert( ids[i] );
- ignoreFaces.push_back( s );
+ const TopoDS_Shape& s = getMeshDS()->IndexToShape( ids[ii] );
+ if ( !s.IsNull() && s.ShapeType() == TopAbs_FACE )
+ _sdVec[i]._ignoreFaceIds.insert( ids[ii] );
+ }
+ }
+ else // FACEs with layers are given
+ {
+ exp.Init( _sdVec[i]._solid, TopAbs_FACE );
+ for ( ; exp.More(); exp.Next() )
+ {
+ TGeomID faceInd = getMeshDS()->ShapeToIndex( exp.Current() );
+ if ( find( ids.begin(), ids.end(), faceInd ) == ids.end() )
+ _sdVec[i]._ignoreFaceIds.insert( faceInd );
}
}
- }
- // ignore internal faces
- SMESH_MesherHelper helper( *_mesh );
- TopExp_Explorer exp;
- for ( unsigned i = 0; i < _sdVec.size(); ++i )
- {
- exp.Init( _sdVec[i]._solid.Oriented( TopAbs_FORWARD ), TopAbs_FACE );
- for ( ; exp.More(); exp.Next() )
+ // ignore internal FACEs if inlets and outlets are specified
{
- TGeomID faceInd = getMeshDS()->ShapeToIndex( exp.Current() );
- if ( helper.NbAncestors( exp.Current(), *_mesh, TopAbs_SOLID ) > 1 )
- {
- _ignoreShapeIds.insert( faceInd );
- ignoreFaces.push_back( exp.Current() );
- if ( helper.IsReversedSubMesh( TopoDS::Face( exp.Current() )))
+ TopTools_IndexedDataMapOfShapeListOfShape solidsOfFace;
+ if ( _sdVec[i]._hyp->IsToIgnoreShapes() )
+ TopExp::MapShapesAndAncestors( _sdVec[i]._hypShape,
+ TopAbs_FACE, TopAbs_SOLID, solidsOfFace);
+
+ exp.Init( _sdVec[i]._solid.Oriented( TopAbs_FORWARD ), TopAbs_FACE );
+ for ( ; exp.More(); exp.Next() )
+ {
+ const TopoDS_Face& face = TopoDS::Face( exp.Current() );
+ if ( helper.NbAncestors( face, *_mesh, TopAbs_SOLID ) < 2 )
+ continue;
+
+ const TGeomID faceInd = getMeshDS()->ShapeToIndex( face );
+ if ( _sdVec[i]._hyp->IsToIgnoreShapes() )
+ {
+ int nbSolids = solidsOfFace.FindFromKey( face ).Extent();
+ if ( nbSolids > 1 )
+ _sdVec[i]._ignoreFaceIds.insert( faceInd );
+ }
+
+ if ( helper.IsReversedSubMesh( face ))
+ {
_sdVec[i]._reversedFaceIds.insert( faceInd );
+ }
}
}
}
// Find faces to shrink mesh on (solution 2 in issue 0020832);
TopTools_IndexedMapOfShape shapes;
- for ( unsigned i = 0; i < _sdVec.size(); ++i )
+ for ( size_t i = 0; i < _sdVec.size(); ++i )
{
shapes.Clear();
TopExp::MapShapes(_sdVec[i]._solid, TopAbs_EDGE, shapes);
// check presence of layers on them
int ignore[2];
for ( int j = 0; j < 2; ++j )
- ignore[j] = _ignoreShapeIds.count ( getMeshDS()->ShapeToIndex( FF[j] ));
- if ( ignore[0] == ignore[1] ) continue; // nothing interesting
+ ignore[j] = _sdVec[i]._ignoreFaceIds.count ( getMeshDS()->ShapeToIndex( FF[j] ));
+ if ( ignore[0] == ignore[1] )
+ continue; // nothing interesting
TopoDS_Shape fWOL = FF[ ignore[0] ? 0 : 1 ];
+ // check presence of layers on fWOL within an adjacent SOLID
+ bool collision = false;
+ PShapeIteratorPtr sIt = helper.GetAncestors( fWOL, *_mesh, TopAbs_SOLID );
+ while ( const TopoDS_Shape* solid = sIt->next() )
+ if ( !solid->IsSame( _sdVec[i]._solid ))
+ {
+ int iSolid = solids.FindIndex( *solid );
+ int iFace = getMeshDS()->ShapeToIndex( fWOL );
+ if ( iSolid > 0 && !_sdVec[ iSolid-1 ]._ignoreFaceIds.count( iFace ))
+ {
+ //_sdVec[i]._noShrinkShapes.insert( iFace );
+ //fWOL.Nullify();
+ collision = true;
+ }
+ }
// add edge to maps
- TGeomID edgeInd = getMeshDS()->ShapeToIndex( edge );
- _sdVec[i]._shrinkShape2Shape.insert( make_pair( edgeInd, fWOL ));
+ if ( !fWOL.IsNull())
+ {
+ TGeomID edgeInd = getMeshDS()->ShapeToIndex( edge );
+ _sdVec[i]._shrinkShape2Shape.insert( make_pair( edgeInd, fWOL ));
+ if ( collision )
+ {
+ // _shrinkShape2Shape will be used to temporary inflate _LayerEdge's based
+ // on the edge but shrink won't be performed
+ _sdVec[i]._noShrinkShapes.insert( edgeInd );
+ }
+ }
}
}
// Exclude from _shrinkShape2Shape FACE's that can't be shrinked since
// the algo of the SOLID sharing the FACE does not support it
set< string > notSupportAlgos; notSupportAlgos.insert("Hexa_3D");
- for ( unsigned i = 0; i < _sdVec.size(); ++i )
+ for ( size_t i = 0; i < _sdVec.size(); ++i )
{
- TopTools_MapOfShape noShrinkVertices;
map< TGeomID, TopoDS_Shape >::iterator e2f = _sdVec[i]._shrinkShape2Shape.begin();
for ( ; e2f != _sdVec[i]._shrinkShape2Shape.end(); ++e2f )
{
const TopoDS_Shape& fWOL = e2f->second;
- TGeomID edgeID = e2f->first;
+ const TGeomID edgeID = e2f->first;
bool notShrinkFace = false;
PShapeIteratorPtr soIt = helper.GetAncestors(fWOL, *_mesh, TopAbs_SOLID);
- while ( soIt->more())
+ while ( soIt->more() )
{
const TopoDS_Shape* solid = soIt->next();
if ( _sdVec[i]._solid.IsSame( *solid )) continue;
SMESH_Algo* algo = _mesh->GetGen()->GetAlgo( *_mesh, *solid );
if ( !algo || !notSupportAlgos.count( algo->GetName() )) continue;
notShrinkFace = true;
- for ( unsigned j = 0; j < _sdVec.size(); ++j )
+ size_t iSolid = 0;
+ for ( ; iSolid < _sdVec.size(); ++iSolid )
{
- if ( _sdVec[j]._solid.IsSame( *solid ) )
- if ( _sdVec[j]._shrinkShape2Shape.count( edgeID ))
+ if ( _sdVec[iSolid]._solid.IsSame( *solid ) ) {
+ if ( _sdVec[iSolid]._shrinkShape2Shape.count( edgeID ))
notShrinkFace = false;
+ break;
+ }
}
- }
- if ( notShrinkFace )
- {
- _sdVec[i]._noShrinkFaces.insert( getMeshDS()->ShapeToIndex( fWOL ));
- for ( TopExp_Explorer vExp( fWOL, TopAbs_VERTEX ); vExp.More(); vExp.Next() )
- noShrinkVertices.Add( vExp.Current() );
- }
- }
- // erase from _shrinkShape2Shape all srink EDGE's of a SOLID connected
- // to the found not shrinked fWOL's
- e2f = _sdVec[i]._shrinkShape2Shape.begin();
- for ( ; e2f != _sdVec[i]._shrinkShape2Shape.end(); )
- {
- TGeomID edgeID = e2f->first;
- TopoDS_Vertex VV[2];
- TopExp::Vertices( TopoDS::Edge( getMeshDS()->IndexToShape( edgeID )),VV[0],VV[1]);
- if ( noShrinkVertices.Contains( VV[0] ) || noShrinkVertices.Contains( VV[1] ))
- {
- _sdVec[i]._noShrinkFaces.insert( getMeshDS()->ShapeToIndex( e2f->second ));
- _sdVec[i]._shrinkShape2Shape.erase( e2f++ );
- }
- else
- {
- e2f++;
- }
- }
- }
-
+ if ( notShrinkFace )
+ {
+ _sdVec[i]._noShrinkShapes.insert( edgeID );
+
+ // add VERTEXes of the edge in _noShrinkShapes
+ TopoDS_Shape edge = getMeshDS()->IndexToShape( edgeID );
+ for ( TopoDS_Iterator vIt( edge ); vIt.More(); vIt.Next() )
+ _sdVec[i]._noShrinkShapes.insert( getMeshDS()->ShapeToIndex( vIt.Value() ));
+
+ // check if there is a collision with to-shrink-from EDGEs in iSolid
+ if ( iSolid == _sdVec.size() )
+ continue; // no VL in the solid
+ shapes.Clear();
+ TopExp::MapShapes( fWOL, TopAbs_EDGE, shapes);
+ for ( int iE = 1; iE <= shapes.Extent(); ++iE )
+ {
+ const TopoDS_Edge& E = TopoDS::Edge( shapes( iE ));
+ const TGeomID eID = getMeshDS()->ShapeToIndex( E );
+ if ( eID == edgeID ||
+ !_sdVec[iSolid]._shrinkShape2Shape.count( eID ) ||
+ _sdVec[i]._noShrinkShapes.count( eID ))
+ continue;
+ for ( int is1st = 0; is1st < 2; ++is1st )
+ {
+ TopoDS_Vertex V = helper.IthVertex( is1st, E );
+ if ( _sdVec[i]._noShrinkShapes.count( getMeshDS()->ShapeToIndex( V ) ))
+ {
+ // _sdVec[i]._noShrinkShapes.insert( eID );
+ // V = helper.IthVertex( !is1st, E );
+ // _sdVec[i]._noShrinkShapes.insert( getMeshDS()->ShapeToIndex( V ));
+ //iE = 0; // re-start the loop on EDGEs of fWOL
+ return error("No way to make a conformal mesh with "
+ "the given set of faces with layers", _sdVec[i]._index);
+ }
+ }
+ }
+ }
+
+ } // while ( soIt->more() )
+ } // loop on _sdVec[i]._shrinkShape2Shape
+ } // loop on _sdVec to fill in _SolidData::_noShrinkShapes
+
// Find the SHAPE along which to inflate _LayerEdge based on VERTEX
- for ( unsigned i = 0; i < _sdVec.size(); ++i )
+ for ( size_t i = 0; i < _sdVec.size(); ++i )
{
shapes.Clear();
TopExp::MapShapes(_sdVec[i]._solid, TopAbs_VERTEX, shapes);
while ( fIt->more())
{
const TopoDS_Shape* f = fIt->next();
- const int fID = getMeshDS()->ShapeToIndex( *f );
if ( helper.IsSubShape( *f, _sdVec[i]._solid ) )
{
totalNbFaces++;
- if ( _ignoreShapeIds.count ( fID ) && ! _sdVec[i]._noShrinkFaces.count( fID ))
+ const int fID = getMeshDS()->ShapeToIndex( *f );
+ if ( _sdVec[i]._ignoreFaceIds.count ( fID ) /*&&
+ !_sdVec[i]._noShrinkShapes.count( fID )*/)
facesWOL.push_back( *f );
}
}
switch ( facesWOL.size() )
{
case 1:
+ {
+ helper.SetSubShape( facesWOL[0] );
+ if ( helper.IsRealSeam( vInd )) // inflate along a seam edge?
{
- helper.SetSubShape( facesWOL[0] );
- if ( helper.IsRealSeam( vInd )) // inflate along a seam edge?
+ TopoDS_Shape seamEdge;
+ PShapeIteratorPtr eIt = helper.GetAncestors(vertex, *_mesh, TopAbs_EDGE);
+ while ( eIt->more() && seamEdge.IsNull() )
{
- TopoDS_Shape seamEdge;
- PShapeIteratorPtr eIt = helper.GetAncestors(vertex, *_mesh, TopAbs_EDGE);
- while ( eIt->more() && seamEdge.IsNull() )
- {
- const TopoDS_Shape* e = eIt->next();
- if ( helper.IsRealSeam( *e ) )
- seamEdge = *e;
- }
- if ( !seamEdge.IsNull() )
- {
- _sdVec[i]._shrinkShape2Shape.insert( make_pair( vInd, seamEdge ));
- break;
- }
+ const TopoDS_Shape* e = eIt->next();
+ if ( helper.IsRealSeam( *e ) )
+ seamEdge = *e;
+ }
+ if ( !seamEdge.IsNull() )
+ {
+ _sdVec[i]._shrinkShape2Shape.insert( make_pair( vInd, seamEdge ));
+ break;
}
- _sdVec[i]._shrinkShape2Shape.insert( make_pair( vInd, facesWOL[0] ));
- break;
}
+ _sdVec[i]._shrinkShape2Shape.insert( make_pair( vInd, facesWOL[0] ));
+ break;
+ }
case 2:
+ {
+ // find an edge shared by 2 faces
+ PShapeIteratorPtr eIt = helper.GetAncestors(vertex, *_mesh, TopAbs_EDGE);
+ while ( eIt->more())
{
- // find an edge shared by 2 faces
- PShapeIteratorPtr eIt = helper.GetAncestors(vertex, *_mesh, TopAbs_EDGE);
- while ( eIt->more())
+ const TopoDS_Shape* e = eIt->next();
+ if ( helper.IsSubShape( *e, facesWOL[0]) &&
+ helper.IsSubShape( *e, facesWOL[1]))
{
- const TopoDS_Shape* e = eIt->next();
- if ( helper.IsSubShape( *e, facesWOL[0]) &&
- helper.IsSubShape( *e, facesWOL[1]))
- {
- _sdVec[i]._shrinkShape2Shape.insert( make_pair( vInd, *e )); break;
- }
+ _sdVec[i]._shrinkShape2Shape.insert( make_pair( vInd, *e )); break;
}
- break;
}
+ break;
+ }
default:
return error("Not yet supported case", _sdVec[i]._index);
}
}
}
+ // add FACEs of other SOLIDs to _ignoreFaceIds
+ for ( size_t i = 0; i < _sdVec.size(); ++i )
+ {
+ shapes.Clear();
+ TopExp::MapShapes(_sdVec[i]._solid, TopAbs_FACE, shapes);
+
+ for ( exp.Init( _mesh->GetShapeToMesh(), TopAbs_FACE ); exp.More(); exp.Next() )
+ {
+ if ( !shapes.Contains( exp.Current() ))
+ _sdVec[i]._ignoreFaceIds.insert( getMeshDS()->ShapeToIndex( exp.Current() ));
+ }
+ }
+
return true;
}
{
// get all sub-shapes to make layers on
set<TGeomID> subIds, faceIds;
- subIds = data._noShrinkFaces;
+ subIds = data._noShrinkShapes;
TopExp_Explorer exp( data._solid, TopAbs_FACE );
for ( ; exp.More(); exp.Next() )
- if ( ! _ignoreShapeIds.count( getMeshDS()->ShapeToIndex( exp.Current() )))
{
SMESH_subMesh* fSubM = _mesh->GetSubMesh( exp.Current() );
- faceIds.insert( fSubM->GetId() );
- SMESH_subMeshIteratorPtr subIt =
- fSubM->getDependsOnIterator(/*includeSelf=*/true, /*complexShapeFirst=*/false);
+ if ( ! data._ignoreFaceIds.count( fSubM->GetId() ))
+ faceIds.insert( fSubM->GetId() );
+ SMESH_subMeshIteratorPtr subIt = fSubM->getDependsOnIterator(/*includeSelf=*/true);
while ( subIt->more() )
subIds.insert( subIt->next()->GetId() );
}
// make a map to find new nodes on sub-shapes shared with other SOLID
- map< TGeomID, TNode2Edge* > s2neMap;
map< TGeomID, TNode2Edge* >::iterator s2ne;
map< TGeomID, TopoDS_Shape >::iterator s2s = data._shrinkShape2Shape.begin();
for (; s2s != data._shrinkShape2Shape.end(); ++s2s )
{
TGeomID shapeInd = s2s->first;
- for ( unsigned i = 0; i < _sdVec.size(); ++i )
+ for ( size_t i = 0; i < _sdVec.size(); ++i )
{
if ( _sdVec[i]._index == data._index ) continue;
map< TGeomID, TopoDS_Shape >::iterator s2s2 = _sdVec[i]._shrinkShape2Shape.find( shapeInd );
if ( s2s2 != _sdVec[i]._shrinkShape2Shape.end() &&
*s2s == *s2s2 && !_sdVec[i]._n2eMap.empty() )
{
- s2neMap.insert( make_pair( shapeInd, &_sdVec[i]._n2eMap ));
+ data._s2neMap.insert( make_pair( shapeInd, &_sdVec[i]._n2eMap ));
break;
}
}
SMESH_MesherHelper helper( *_mesh );
helper.SetSubShape( data._solid );
- helper.SetElementsOnShape(true);
+ helper.SetElementsOnShape( true );
vector< const SMDS_MeshNode*> newNodes; // of a mesh face
TNode2Edge::iterator n2e2;
while ( eIt->more() )
{
const SMDS_MeshElement* face = eIt->next();
+ double faceMaxCosin = -1;
+ _LayerEdge* maxCosinEdge = 0;
+ int nbDegenNodes = 0;
+
newNodes.resize( face->NbCornerNodes() );
- double faceMaxCosin = -1;
- for ( int i = 0 ; i < face->NbCornerNodes(); ++i )
+ for ( size_t i = 0 ; i < newNodes.size(); ++i )
{
- const SMDS_MeshNode* n = face->GetNode(i);
+ const SMDS_MeshNode* n = face->GetNode( i );
+ const int shapeID = n->getshapeId();
+ const bool onDegenShap = helper.IsDegenShape( shapeID );
+ const bool onDegenEdge = ( onDegenShap && n->GetPosition()->GetDim() == 1 );
+ if ( onDegenShap )
+ {
+ if ( onDegenEdge )
+ {
+ // substitute n on a degenerated EDGE with a node on a corresponding VERTEX
+ const TopoDS_Shape& E = getMeshDS()->IndexToShape( shapeID );
+ TopoDS_Vertex V = helper.IthVertex( 0, TopoDS::Edge( E ));
+ if ( const SMDS_MeshNode* vN = SMESH_Algo::VertexNode( V, getMeshDS() )) {
+ n = vN;
+ nbDegenNodes++;
+ }
+ }
+ else
+ {
+ nbDegenNodes++;
+ }
+ }
TNode2Edge::iterator n2e = data._n2eMap.insert( make_pair( n, (_LayerEdge*)0 )).first;
if ( !(*n2e).second )
{
// add a _LayerEdge
_LayerEdge* edge = new _LayerEdge();
- n2e->second = edge;
edge->_nodes.push_back( n );
- const int shapeID = n->getshapeId();
+ n2e->second = edge;
edgesByGeom[ shapeID ].push_back( edge );
+ const bool noShrink = data._noShrinkShapes.count( shapeID );
+
+ SMESH_TNodeXYZ xyz( n );
// set edge data or find already refined _LayerEdge and get data from it
- if ( n->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE &&
- ( s2ne = s2neMap.find( shapeID )) != s2neMap.end() &&
- ( n2e2 = (*s2ne).second->find( n )) != s2ne->second->end())
+ if (( !noShrink ) &&
+ ( n->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE ) &&
+ (( s2ne = data._s2neMap.find( shapeID )) != data._s2neMap.end() ) &&
+ (( n2e2 = (*s2ne).second->find( n )) != s2ne->second->end() ))
{
_LayerEdge* foundEdge = (*n2e2).second;
- edge->Copy( *foundEdge, helper );
- // location of the last node is modified but we can restore
- // it by node position on _sWOL stored by the node
+ gp_XYZ lastPos = edge->Copy( *foundEdge, helper );
+ foundEdge->_pos.push_back( lastPos );
+ // location of the last node is modified and we restore it by foundEdge->_pos.back()
const_cast< SMDS_MeshNode* >
- ( edge->_nodes.back() )->setXYZ( n->X(), n->Y(), n->Z() );
+ ( edge->_nodes.back() )->setXYZ( xyz.X(), xyz.Y(), xyz.Z() );
}
else
{
- edge->_nodes.push_back( helper.AddNode( n->X(), n->Y(), n->Z() ));
+ if ( !noShrink )
+ {
+ edge->_nodes.push_back( helper.AddNode( xyz.X(), xyz.Y(), xyz.Z() ));
+ }
if ( !setEdgeData( *edge, subIds, helper, data ))
return false;
}
dumpMove(edge->_nodes.back());
- if ( edge->_cosin > 0.01 )
+
+ if ( edge->_cosin > faceMaxCosin )
{
- if ( edge->_cosin > faceMaxCosin )
- faceMaxCosin = edge->_cosin;
+ faceMaxCosin = edge->_cosin;
+ maxCosinEdge = edge;
}
}
newNodes[ i ] = n2e->second->_nodes.back();
+
+ if ( onDegenEdge )
+ data._n2eMap.insert( make_pair( face->GetNode( i ), n2e->second ));
}
+ if ( newNodes.size() - nbDegenNodes < 2 )
+ continue;
+
// create a temporary face
- const SMDS_MeshElement* newFace = new TmpMeshFace( newNodes, --_tmpFaceID );
+ const SMDS_MeshElement* newFace =
+ new _TmpMeshFace( newNodes, --_tmpFaceID, face->getshapeId() );
proxySub->AddElement( newFace );
// compute inflation step size by min size of element on a convex surface
- if ( faceMaxCosin > 0.1 )
- limitStepSize( data, face, faceMaxCosin );
+ if ( faceMaxCosin > theMinSmoothCosin )
+ limitStepSize( data, face, maxCosinEdge );
+
} // loop on 2D elements on a FACE
} // loop on FACEs of a SOLID
data._epsilon *= data._stepSize;
// Put _LayerEdge's into the vector data._edges
-
if ( !sortEdges( data, edgesByGeom ))
return false;
- // Set target nodes into _Simplex and _2NearEdges
+ // limit data._stepSize depending on surface curvature and fill data._convexFaces
+ limitStepSizeByCurvature( data ); // !!! it must be before node substitution in _Simplex
+
+ // Set target nodes into _Simplex and _LayerEdge's to _2NearEdges
TNode2Edge::iterator n2e;
- for ( unsigned i = 0; i < data._edges.size(); ++i )
+ const SMDS_MeshNode* nn[2];
+ for ( size_t i = 0; i < data._edges.size(); ++i )
{
- if ( data._edges[i]->IsOnEdge())
- for ( int j = 0; j < 2; ++j )
+ _LayerEdge* edge = data._edges[i];
+ if ( edge->IsOnEdge() )
+ {
+ // get neighbor nodes
+ bool hasData = ( edge->_2neibors->_edges[0] );
+ if ( hasData ) // _LayerEdge is a copy of another one
{
- if ( data._edges[i]->_nodes.back()->NbInverseElements(SMDSAbs_Volume) > 0 )
- break; // _LayerEdge is shared by two _SolidData's
- const SMDS_MeshNode* & n = data._edges[i]->_2neibors->_nodes[j];
- if (( n2e = data._n2eMap.find( n )) == data._n2eMap.end() )
- return error("_LayerEdge not found by src node", data._index);
- n = (*n2e).second->_nodes.back();
- data._edges[i]->_2neibors->_edges[j] = n2e->second;
+ nn[0] = edge->_2neibors->srcNode(0);
+ nn[1] = edge->_2neibors->srcNode(1);
}
- else
- for ( unsigned j = 0; j < data._edges[i]->_simplices.size(); ++j )
+ else if ( !findNeiborsOnEdge( edge, nn[0],nn[1], data ))
{
- _Simplex& s = data._edges[i]->_simplices[j];
- s._nNext = data._n2eMap[ s._nNext ]->_nodes.back();
- s._nPrev = data._n2eMap[ s._nPrev ]->_nodes.back();
+ return false;
}
- }
+ // set neighbor _LayerEdge's
+ for ( int j = 0; j < 2; ++j )
+ {
+ if (( n2e = data._n2eMap.find( nn[j] )) == data._n2eMap.end() )
+ return error("_LayerEdge not found by src node", data._index);
+ edge->_2neibors->_edges[j] = n2e->second;
+ }
+ if ( !hasData )
+ edge->SetDataByNeighbors( nn[0], nn[1], helper);
+ }
- dumpFunctionEnd();
+ for ( size_t j = 0; j < edge->_simplices.size(); ++j )
+ {
+ _Simplex& s = edge->_simplices[j];
+ s._nNext = data._n2eMap[ s._nNext ]->_nodes.back();
+ s._nPrev = data._n2eMap[ s._nPrev ]->_nodes.back();
+ }
+
+ // For an _LayerEdge on a degenerated EDGE, copy some data from
+ // a corresponding _LayerEdge on a VERTEX
+ // (issue 52453, pb on a downloaded SampleCase2-Tet-netgen-mephisto.hdf)
+ if ( helper.IsDegenShape( edge->_nodes[0]->getshapeId() ))
+ {
+ // Generally we should not get here
+ const TopoDS_Shape& E = getMeshDS()->IndexToShape( edge->_nodes[0]->getshapeId() );
+ if ( E.ShapeType() != TopAbs_EDGE )
+ continue;
+ TopoDS_Vertex V = helper.IthVertex( 0, TopoDS::Edge( E ));
+ const SMDS_MeshNode* vN = SMESH_Algo::VertexNode( V, getMeshDS() );
+ if (( n2e = data._n2eMap.find( vN )) == data._n2eMap.end() )
+ continue;
+ const _LayerEdge* vEdge = n2e->second;
+ edge->_normal = vEdge->_normal;
+ edge->_lenFactor = vEdge->_lenFactor;
+ edge->_cosin = vEdge->_cosin;
+ }
+ }
+
+ dumpFunctionEnd();
return true;
}
void _ViscousBuilder::limitStepSize( _SolidData& data,
const SMDS_MeshElement* face,
- const double cosin)
+ const _LayerEdge* maxCosinEdge )
{
int iN = 0;
double minSize = 10 * data._stepSize;
for ( int i = 0; i < nbNodes; ++i )
{
const SMDS_MeshNode* nextN = face->GetNode( SMESH_MesherHelper::WrapIndex( i+1, nbNodes ));
- const SMDS_MeshNode* curN = face->GetNode( i );
+ const SMDS_MeshNode* curN = face->GetNode( i );
if ( nextN->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ||
- curN->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE )
+ curN-> GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE )
{
- double dist = SMESH_TNodeXYZ( face->GetNode(i)).Distance( nextN );
+ double dist = SMESH_TNodeXYZ( curN ).Distance( nextN );
if ( dist < minSize )
minSize = dist, iN = i;
}
}
- double newStep = 0.8 * minSize / cosin;
+ double newStep = 0.8 * minSize / maxCosinEdge->_lenFactor;
if ( newStep < data._stepSize )
{
data._stepSize = newStep;
- data._stepSizeCoeff = 0.8 / cosin;
+ data._stepSizeCoeff = 0.8 / maxCosinEdge->_lenFactor;
data._stepSizeNodes[0] = face->GetNode( iN );
data._stepSizeNodes[1] = face->GetNode( SMESH_MesherHelper::WrapIndex( iN+1, nbNodes ));
}
*/
//================================================================================
-void _ViscousBuilder::limitStepSize( _SolidData& data, const double minSize)
+void _ViscousBuilder::limitStepSize( _SolidData& data, const double minSize )
{
if ( minSize < data._stepSize )
{
}
}
+//================================================================================
+/*!
+ * \brief Limit data._stepSize by evaluating curvature of shapes and fill data._convexFaces
+ */
+//================================================================================
+
+void _ViscousBuilder::limitStepSizeByCurvature( _SolidData& data )
+{
+ const int nbTestPnt = 5; // on a FACE sub-shape
+ const double minCurvature = 0.9 / data._hyp->GetTotalThickness();
+
+ BRepLProp_SLProps surfProp( 2, 1e-6 );
+ SMESH_MesherHelper helper( *_mesh );
+
+ data._convexFaces.clear();
+
+ TopExp_Explorer face( data._solid, TopAbs_FACE );
+ for ( ; face.More(); face.Next() )
+ {
+ const TopoDS_Face& F = TopoDS::Face( face.Current() );
+ SMESH_subMesh * sm = _mesh->GetSubMesh( F );
+ const TGeomID faceID = sm->GetId();
+ if ( data._ignoreFaceIds.count( faceID )) continue;
+
+ BRepAdaptor_Surface surface( F, false );
+ surfProp.SetSurface( surface );
+
+ bool isTooCurved = false;
+ int iBeg, iEnd;
+
+ _ConvexFace cnvFace;
+ const double oriFactor = ( F.Orientation() == TopAbs_REVERSED ? +1. : -1. );
+ SMESH_subMeshIteratorPtr smIt = sm->getDependsOnIterator(/*includeSelf=*/true);
+ while ( smIt->more() )
+ {
+ sm = smIt->next();
+ const TGeomID subID = sm->GetId();
+ // find _LayerEdge's of a sub-shape
+ size_t edgesEnd;
+ if ( data.GetShapeEdges( subID, edgesEnd, &iBeg, &iEnd ))
+ cnvFace._subIdToEdgeEnd.insert( make_pair( subID, edgesEnd ));
+ else
+ continue;
+ // check concavity and curvature and limit data._stepSize
+ int nbLEdges = iEnd - iBeg;
+ int iStep = Max( 1, nbLEdges / nbTestPnt );
+ for ( ; iBeg < iEnd; iBeg += iStep )
+ {
+ gp_XY uv = helper.GetNodeUV( F, data._edges[ iBeg ]->_nodes[0] );
+ surfProp.SetParameters( uv.X(), uv.Y() );
+ if ( !surfProp.IsCurvatureDefined() )
+ continue;
+ if ( surfProp.MaxCurvature() * oriFactor > minCurvature )
+ {
+ limitStepSize( data, 0.9 / surfProp.MaxCurvature() * oriFactor );
+ isTooCurved = true;
+ }
+ if ( surfProp.MinCurvature() * oriFactor > minCurvature )
+ {
+ limitStepSize( data, 0.9 / surfProp.MinCurvature() * oriFactor );
+ isTooCurved = true;
+ }
+ }
+ } // loop on sub-shapes of the FACE
+
+ if ( !isTooCurved ) continue;
+
+ _ConvexFace & convFace =
+ data._convexFaces.insert( make_pair( faceID, cnvFace )).first->second;
+
+ convFace._face = F;
+ convFace._normalsFixed = false;
+
+ // Fill _ConvexFace::_simplexTestEdges. These _LayerEdge's are used to detect
+ // prism distortion.
+ map< TGeomID, int >::iterator id2end = convFace._subIdToEdgeEnd.find( faceID );
+ if ( id2end != convFace._subIdToEdgeEnd.end() )
+ {
+ // there are _LayerEdge's on the FACE it-self;
+ // select _LayerEdge's near EDGEs
+ data.GetEdgesOnShape( id2end->second, iBeg, iEnd );
+ for ( ; iBeg < iEnd; ++iBeg )
+ {
+ _LayerEdge* ledge = data._edges[ iBeg ];
+ for ( size_t j = 0; j < ledge->_simplices.size(); ++j )
+ if ( ledge->_simplices[j]._nNext->GetPosition()->GetDim() < 2 )
+ {
+ convFace._simplexTestEdges.push_back( ledge );
+ break;
+ }
+ }
+ }
+ else
+ {
+ // where there are no _LayerEdge's on a _ConvexFace,
+ // as e.g. on a fillet surface with no internal nodes - issue 22580,
+ // so that collision of viscous internal faces is not detected by check of
+ // intersection of _LayerEdge's with the viscous internal faces.
+
+ set< const SMDS_MeshNode* > usedNodes;
+
+ // look for _LayerEdge's with null _sWOL
+ map< TGeomID, int >::iterator id2end = convFace._subIdToEdgeEnd.begin();
+ for ( ; id2end != convFace._subIdToEdgeEnd.end(); ++id2end )
+ {
+ data.GetEdgesOnShape( id2end->second, iBeg, iEnd );
+ if ( iBeg >= iEnd || !data._edges[ iBeg ]->_sWOL.IsNull() )
+ continue;
+ for ( ; iBeg < iEnd; ++iBeg )
+ {
+ _LayerEdge* ledge = data._edges[ iBeg ];
+ const SMDS_MeshNode* srcNode = ledge->_nodes[0];
+ if ( !usedNodes.insert( srcNode ).second ) continue;
+
+ getSimplices( srcNode, ledge->_simplices, data._ignoreFaceIds, &data );
+ for ( size_t i = 0; i < ledge->_simplices.size(); ++i )
+ {
+ usedNodes.insert( ledge->_simplices[i]._nPrev );
+ usedNodes.insert( ledge->_simplices[i]._nNext );
+ }
+ convFace._simplexTestEdges.push_back( ledge );
+ }
+ }
+ }
+ } // loop on FACEs of data._solid
+}
+
//================================================================================
/*!
* \brief Separate shapes (and _LayerEdge's on them) to smooth from the rest ones
bool _ViscousBuilder::sortEdges( _SolidData& data,
vector< vector<_LayerEdge*> >& edgesByGeom)
{
+ // define allowed thickness
+ computeGeomSize( data ); // compute data._geomSize
+ const double tgtThick = Min( 0.5 * data._geomSize, data._hyp->GetTotalThickness() );
+
// Find shapes needing smoothing; such a shape has _LayerEdge._normal on it's
- // boundry inclined at a sharp angle to the shape
+ // boundry inclined to the shape at a sharp angle
list< TGeomID > shapesToSmooth;
SMESH_MesherHelper helper( *_mesh );
bool ok = true;
- for ( unsigned iS = 0; iS < edgesByGeom.size(); ++iS )
+ for ( size_t iS = 0; iS < edgesByGeom.size(); ++iS )
{
vector<_LayerEdge*>& eS = edgesByGeom[iS];
if ( eS.empty() ) continue;
- TopoDS_Shape S = getMeshDS()->IndexToShape( iS );
+ const TopoDS_Shape& S = getMeshDS()->IndexToShape( iS );
bool needSmooth = false;
switch ( S.ShapeType() )
{
case TopAbs_EDGE: {
- bool isShrinkEdge = !eS[0]->_sWOL.IsNull();
+ if ( SMESH_Algo::isDegenerated( TopoDS::Edge( S )))
+ break;
+ //bool isShrinkEdge = !eS[0]->_sWOL.IsNull();
for ( TopoDS_Iterator vIt( S ); vIt.More() && !needSmooth; vIt.Next() )
{
TGeomID iV = getMeshDS()->ShapeToIndex( vIt.Value() );
vector<_LayerEdge*>& eV = edgesByGeom[ iV ];
if ( eV.empty() ) continue;
- double cosin = eV[0]->_cosin;
- bool badCosin =
- ( !eV[0]->_sWOL.IsNull() && ( eV[0]->_sWOL.ShapeType() == TopAbs_EDGE || !isShrinkEdge));
- if ( badCosin )
+ gp_Vec eDir = getEdgeDir( TopoDS::Edge( S ), TopoDS::Vertex( vIt.Value() ));
+ double angle = eDir.Angle( eV[0]->_normal );
+ double cosin = Cos( angle );
+ if ( cosin > theMinSmoothCosin )
{
- gp_Vec dir1, dir2;
- if ( eV[0]->_sWOL.ShapeType() == TopAbs_EDGE )
- dir1 = getEdgeDir( TopoDS::Edge( eV[0]->_sWOL ), TopoDS::Vertex( vIt.Value() ));
- else
- dir1 = getFaceDir( TopoDS::Face( eV[0]->_sWOL ), TopoDS::Vertex( vIt.Value() ),
- eV[0]->_nodes[0], helper, ok);
- dir2 = getEdgeDir( TopoDS::Edge( S ), TopoDS::Vertex( vIt.Value() ));
- double angle = dir1.Angle( dir2 );
- cosin = cos( angle );
+ // compare tgtThick with the length of an end segment
+ SMDS_ElemIteratorPtr eIt = eV[0]->_nodes[0]->GetInverseElementIterator(SMDSAbs_Edge);
+ while ( eIt->more() )
+ {
+ const SMDS_MeshElement* endSeg = eIt->next();
+ if ( endSeg->getshapeId() == iS )
+ {
+ double segLen =
+ SMESH_TNodeXYZ( endSeg->GetNode(0) ).Distance( endSeg->GetNode(1 ));
+ needSmooth = needSmoothing( cosin, tgtThick, segLen );
+ break;
+ }
+ }
}
- needSmooth = ( cosin > 0.1 );
}
break;
}
TGeomID iE = getMeshDS()->ShapeToIndex( eExp.Current() );
vector<_LayerEdge*>& eE = edgesByGeom[ iE ];
if ( eE.empty() ) continue;
- if ( eE[0]->_sWOL.IsNull() )
- {
- for ( unsigned i = 0; i < eE.size() && !needSmooth; ++i )
- needSmooth = ( eE[i]->_cosin > 0.1 );
- }
- else
+ // TopLoc_Location loc;
+ // Handle(Geom_Surface) surface = BRep_Tool::Surface( TopoDS::Face( S ), loc );
+ // bool isPlane = GeomLib_IsPlanarSurface( surface ).IsPlanar();
+ //if ( eE[0]->_sWOL.IsNull() )
{
- const TopoDS_Face& F1 = TopoDS::Face( S );
- const TopoDS_Face& F2 = TopoDS::Face( eE[0]->_sWOL );
- const TopoDS_Edge& E = TopoDS::Edge( eExp.Current() );
- for ( unsigned i = 0; i < eE.size() && !needSmooth; ++i )
- {
- gp_Vec dir1 = getFaceDir( F1, E, eE[i]->_nodes[0], helper, ok );
- gp_Vec dir2 = getFaceDir( F2, E, eE[i]->_nodes[0], helper, ok );
- double angle = dir1.Angle( dir2 );
- double cosin = cos( angle );
- needSmooth = ( cosin > 0.1 );
- }
+ double faceSize;
+ for ( size_t i = 0; i < eE.size() && !needSmooth; ++i )
+ if ( eE[i]->_cosin > theMinSmoothCosin )
+ {
+ SMDS_ElemIteratorPtr fIt = eE[i]->_nodes[0]->GetInverseElementIterator(SMDSAbs_Face);
+ while ( fIt->more() && !needSmooth )
+ {
+ const SMDS_MeshElement* face = fIt->next();
+ if ( getDistFromEdge( face, eE[i]->_nodes[0], faceSize ))
+ needSmooth = needSmoothing( eE[i]->_cosin, tgtThick, faceSize );
+ }
+ }
}
+ // else
+ // {
+ // const TopoDS_Face& F1 = TopoDS::Face( S );
+ // const TopoDS_Face& F2 = TopoDS::Face( eE[0]->_sWOL );
+ // const TopoDS_Edge& E = TopoDS::Edge( eExp.Current() );
+ // for ( size_t i = 0; i < eE.size() && !needSmooth; ++i )
+ // {
+ // gp_Vec dir1 = getFaceDir( F1, E, eE[i]->_nodes[0], helper, ok );
+ // gp_Vec dir2 = getFaceDir( F2, E, eE[i]->_nodes[0], helper, ok );
+ // double angle = dir1.Angle( );
+ // double cosin = cos( angle );
+ // needSmooth = ( cosin > theMinSmoothCosin );
+ // }
+ // }
}
break;
}
continue;
default:;
}
+
if ( needSmooth )
{
if ( S.ShapeType() == TopAbs_EDGE ) shapesToSmooth.push_front( iS );
} // loop on edgesByGeom
data._edges.reserve( data._n2eMap.size() );
- data._endEdgeToSmooth.clear();
+ data._endEdgeOnShape.clear();
// first we put _LayerEdge's on shapes to smooth
+ data._nbShapesToSmooth = 0;
list< TGeomID >::iterator gIt = shapesToSmooth.begin();
for ( ; gIt != shapesToSmooth.end(); ++gIt )
{
vector<_LayerEdge*>& eVec = edgesByGeom[ *gIt ];
if ( eVec.empty() ) continue;
data._edges.insert( data._edges.end(), eVec.begin(), eVec.end() );
- data._endEdgeToSmooth.push_back( data._edges.size() );
+ data._endEdgeOnShape.push_back( data._edges.size() );
+ data._nbShapesToSmooth++;
eVec.clear();
}
// then the rest _LayerEdge's
- for ( unsigned iS = 0; iS < edgesByGeom.size(); ++iS )
+ for ( size_t iS = 0; iS < edgesByGeom.size(); ++iS )
{
vector<_LayerEdge*>& eVec = edgesByGeom[iS];
+ if ( eVec.empty() ) continue;
data._edges.insert( data._edges.end(), eVec.begin(), eVec.end() );
- eVec.clear();
+ data._endEdgeOnShape.push_back( data._edges.size() );
+ //eVec.clear();
}
return ok;
const SMDS_MeshNode* node = edge._nodes[0]; // source node
SMDS_TypeOfPosition posType = node->GetPosition()->GetTypeOfPosition();
- edge._len = 0;
- edge._2neibors = 0;
+ edge._len = 0;
+ edge._2neibors = 0;
edge._curvature = 0;
// --------------------------
edge._normal.SetCoord(0,0,0);
int totalNbFaces = 0;
- gp_Pnt p;
- gp_Vec du, dv, geomNorm;
+ gp_Vec geomNorm;
bool normOK = true;
- TGeomID shapeInd = node->getshapeId();
+ const TGeomID shapeInd = node->getshapeId();
map< TGeomID, TopoDS_Shape >::const_iterator s2s = data._shrinkShape2Shape.find( shapeInd );
- bool onShrinkShape ( s2s != data._shrinkShape2Shape.end() );
- TopoDS_Shape vertEdge;
+ const bool onShrinkShape ( s2s != data._shrinkShape2Shape.end() );
if ( onShrinkShape ) // one of faces the node is on has no layers
{
- vertEdge = getMeshDS()->IndexToShape( s2s->first ); // vertex or edge
+ TopoDS_Shape vertEdge = getMeshDS()->IndexToShape( s2s->first ); // vertex or edge
if ( s2s->second.ShapeType() == TopAbs_EDGE )
{
// inflate from VERTEX along EDGE
set<TGeomID>::iterator id = faceIds.begin();
TopoDS_Face F;
+ std::pair< TGeomID, gp_XYZ > id2Norm[20];
for ( ; id != faceIds.end(); ++id )
{
const TopoDS_Shape& s = getMeshDS()->IndexToShape( *id );
if ( s.IsNull() || s.ShapeType() != TopAbs_FACE || !subIds.count( *id ))
continue;
- totalNbFaces++;
- //nbLayerFaces += subIds.count( *id );
F = TopoDS::Face( s );
+ geomNorm = getFaceNormal( node, F, helper, normOK );
+ if ( !normOK ) continue;
- gp_XY uv = helper.GetNodeUV( F, node, 0, &normOK );
- Handle(Geom_Surface) surface = BRep_Tool::Surface( F );
- surface->D1( uv.X(),uv.Y(), p, du,dv );
- geomNorm = du ^ dv;
- double size2 = geomNorm.SquareMagnitude();
- if ( size2 > numeric_limits<double>::min() )
- geomNorm /= sqrt( size2 );
- else
- normOK = false;
if ( helper.GetSubShapeOri( data._solid, F ) != TopAbs_REVERSED )
geomNorm.Reverse();
+ id2Norm[ totalNbFaces ].first = *id;
+ id2Norm[ totalNbFaces ].second = geomNorm.XYZ();
+ totalNbFaces++;
edge._normal += geomNorm.XYZ();
}
if ( totalNbFaces == 0 )
return error(SMESH_Comment("Can't get normal to node ") << node->GetID(), data._index);
- edge._normal /= totalNbFaces;
+ if ( normOK && edge._normal.Modulus() < 1e-3 && totalNbFaces > 1 )
+ {
+ // opposite normals, re-get normals at shifted positions (IPAL 52426)
+ edge._normal.SetCoord( 0,0,0 );
+ for ( int i = 0; i < totalNbFaces; ++i )
+ {
+ const TopoDS_Face& F = TopoDS::Face( getMeshDS()->IndexToShape( id2Norm[i].first ));
+ geomNorm = getFaceNormal( node, F, helper, normOK, /*shiftInside=*/true );
+ if ( helper.GetSubShapeOri( data._solid, F ) != TopAbs_REVERSED )
+ geomNorm.Reverse();
+ if ( normOK )
+ id2Norm[ i ].second = geomNorm.XYZ();
+ edge._normal += id2Norm[ i ].second;
+ }
+ }
+
+ if ( totalNbFaces < 3 )
+ {
+ //edge._normal /= totalNbFaces;
+ }
+ else
+ {
+ edge._normal = getWeigthedNormal( node, id2Norm, totalNbFaces );
+ }
switch ( posType )
{
case SMDS_TOP_EDGE: {
TopoDS_Edge E = TopoDS::Edge( helper.GetSubShapeByNode( node, getMeshDS()));
- gp_Vec inFaceDir = getFaceDir( F, E, node, helper, normOK);
+ gp_Vec inFaceDir = getFaceDir( F, E, node, helper, normOK );
double angle = inFaceDir.Angle( edge._normal ); // [0,PI]
edge._cosin = cos( angle );
//cout << "Cosin on EDGE " << edge._cosin << " node " << node->GetID() << endl;
}
case SMDS_TOP_VERTEX: {
TopoDS_Vertex V = TopoDS::Vertex( helper.GetSubShapeByNode( node, getMeshDS()));
- gp_XYZ inFaceDir = getFaceDir( F, V, node, helper, normOK);
- double angle = gp_Vec( inFaceDir).Angle( edge._normal ); // [0,PI]
+ gp_Vec inFaceDir = getFaceDir( F, V, node, helper, normOK );
+ double angle = inFaceDir.Angle( edge._normal ); // [0,PI]
edge._cosin = cos( angle );
//cout << "Cosin on VERTEX " << edge._cosin << " node " << node->GetID() << endl;
break;
default:
return error(SMESH_Comment("Invalid shape position of node ")<<node, data._index);
}
- }
+ } // case _sWOL.IsNull()
double normSize = edge._normal.SquareModulus();
if ( normSize < numeric_limits<double>::min() )
if ( edge._sWOL.ShapeType() == TopAbs_EDGE )
{
double u = helper.GetNodeU( TopoDS::Edge( edge._sWOL ), node, 0, &normOK );
- edge._pos.push_back( gp_XYZ( u, 0, 0));
- getMeshDS()->SetNodeOnEdge( tgtNode, TopoDS::Edge( edge._sWOL ), u );
+ edge._pos.push_back( gp_XYZ( u, 0, 0 ));
+ if ( edge._nodes.size() > 1 )
+ getMeshDS()->SetNodeOnEdge( tgtNode, TopoDS::Edge( edge._sWOL ), u );
}
else // TopAbs_FACE
{
gp_XY uv = helper.GetNodeUV( TopoDS::Face( edge._sWOL ), node, 0, &normOK );
edge._pos.push_back( gp_XYZ( uv.X(), uv.Y(), 0));
- getMeshDS()->SetNodeOnFace( tgtNode, TopoDS::Face( edge._sWOL ), uv.X(), uv.Y() );
+ if ( edge._nodes.size() > 1 )
+ getMeshDS()->SetNodeOnFace( tgtNode, TopoDS::Face( edge._sWOL ), uv.X(), uv.Y() );
}
}
else
if ( posType == SMDS_TOP_FACE )
{
- getSimplices( node, edge._simplices, _ignoreShapeIds, &data );
+ getSimplices( node, edge._simplices, data._ignoreFaceIds, &data );
double avgNormProj = 0, avgLen = 0;
- for ( unsigned i = 0; i < edge._simplices.size(); ++i )
+ for ( size_t i = 0; i < edge._simplices.size(); ++i )
{
gp_XYZ vec = edge._pos.back() - SMESH_TNodeXYZ( edge._simplices[i]._nPrev );
avgNormProj += edge._normal * vec;
{
edge._2neibors = new _2NearEdges;
// target node instead of source ones will be set later
- if ( ! findNeiborsOnEdge( &edge,
- edge._2neibors->_nodes[0],
- edge._2neibors->_nodes[1],
- data))
- return false;
- edge.SetDataByNeighbors( edge._2neibors->_nodes[0],
- edge._2neibors->_nodes[1],
- helper);
+ // if ( ! findNeiborsOnEdge( &edge,
+ // edge._2neibors->_nodes[0],
+ // edge._2neibors->_nodes[1],
+ // data))
+ // return false;
+ // edge.SetDataByNeighbors( edge._2neibors->_nodes[0],
+ // edge._2neibors->_nodes[1],
+ // helper);
}
edge.SetCosin( edge._cosin ); // to update edge._lenFactor
return true;
}
+//================================================================================
+/*!
+ * \brief Return normal to a FACE at a node
+ * \param [in] n - node
+ * \param [in] face - FACE
+ * \param [in] helper - helper
+ * \param [out] isOK - true or false
+ * \param [in] shiftInside - to find normal at a position shifted inside the face
+ * \return gp_XYZ - normal
+ */
+//================================================================================
+
+gp_XYZ _ViscousBuilder::getFaceNormal(const SMDS_MeshNode* node,
+ const TopoDS_Face& face,
+ SMESH_MesherHelper& helper,
+ bool& isOK,
+ bool shiftInside)
+{
+ gp_XY uv;
+ if ( shiftInside )
+ {
+ // get a shifted position
+ gp_Pnt p = SMESH_TNodeXYZ( node );
+ gp_XYZ shift( 0,0,0 );
+ TopoDS_Shape S = helper.GetSubShapeByNode( node, helper.GetMeshDS() );
+ switch ( S.ShapeType() ) {
+ case TopAbs_VERTEX:
+ {
+ shift = getFaceDir( face, TopoDS::Vertex( S ), node, helper, isOK );
+ break;
+ }
+ case TopAbs_EDGE:
+ {
+ shift = getFaceDir( face, TopoDS::Edge( S ), node, helper, isOK );
+ break;
+ }
+ default:
+ isOK = false;
+ }
+ if ( isOK )
+ shift.Normalize();
+ p.Translate( shift * 1e-5 );
+
+ TopLoc_Location loc;
+ GeomAPI_ProjectPointOnSurf& projector = helper.GetProjector( face, loc, 1e-7 );
+
+ if ( !loc.IsIdentity() ) p.Transform( loc.Transformation().Inverted() );
+
+ projector.Perform( p );
+ if ( !projector.IsDone() || projector.NbPoints() < 1 )
+ {
+ isOK = false;
+ return p.XYZ();
+ }
+ Quantity_Parameter U,V;
+ projector.LowerDistanceParameters(U,V);
+ uv.SetCoord( U,V );
+ }
+ else
+ {
+ uv = helper.GetNodeUV( face, node, 0, &isOK );
+ }
+
+ gp_Dir normal;
+ isOK = false;
+
+ Handle(Geom_Surface) surface = BRep_Tool::Surface( face );
+ int pointKind = GeomLib::NormEstim( surface, uv, 1e-5, normal );
+ enum { REGULAR = 0, QUASYSINGULAR, CONICAL, IMPOSSIBLE };
+
+ if ( pointKind == IMPOSSIBLE &&
+ node->GetPosition()->GetDim() == 2 ) // node inside the FACE
+ {
+ // probably NormEstim() failed due to a too high tolerance
+ pointKind = GeomLib::NormEstim( surface, uv, 1e-20, normal );
+ isOK = ( pointKind < IMPOSSIBLE );
+ }
+ if ( pointKind < IMPOSSIBLE )
+ {
+ if ( pointKind != REGULAR &&
+ !shiftInside &&
+ node->GetPosition()->GetDim() < 2 ) // FACE boundary
+ {
+ gp_XYZ normShift = getFaceNormal( node, face, helper, isOK, /*shiftInside=*/true );
+ if ( normShift * normal.XYZ() < 0. )
+ normal = normShift;
+ }
+ isOK = true;
+ }
+
+ if ( !isOK ) // hard singularity, to call with shiftInside=true ?
+ {
+ const TGeomID faceID = helper.GetMeshDS()->ShapeToIndex( face );
+
+ SMDS_ElemIteratorPtr fIt = node->GetInverseElementIterator(SMDSAbs_Face);
+ while ( fIt->more() )
+ {
+ const SMDS_MeshElement* f = fIt->next();
+ if ( f->getshapeId() == faceID )
+ {
+ isOK = SMESH_MeshAlgos::FaceNormal( f, (gp_XYZ&) normal.XYZ(), /*normalized=*/true );
+ if ( isOK )
+ {
+ TopoDS_Face ff = face;
+ ff.Orientation( TopAbs_FORWARD );
+ if ( helper.IsReversedSubMesh( ff ))
+ normal.Reverse();
+ break;
+ }
+ }
+ }
+ }
+ return normal.XYZ();
+}
+
+//================================================================================
+/*!
+ * \brief Return a normal at a node weighted with angles taken by FACEs
+ * \param [in] n - the node
+ * \param [in] fId2Normal - FACE ids and normals
+ * \param [in] nbFaces - nb of FACEs meeting at the node
+ * \return gp_XYZ - computed normal
+ */
+//================================================================================
+
+gp_XYZ _ViscousBuilder::getWeigthedNormal( const SMDS_MeshNode* n,
+ std::pair< TGeomID, gp_XYZ > fId2Normal[],
+ const int nbFaces )
+{
+ gp_XYZ resNorm(0,0,0);
+ TopoDS_Shape V = SMESH_MesherHelper::GetSubShapeByNode( n, getMeshDS() );
+ if ( V.ShapeType() != TopAbs_VERTEX )
+ {
+ for ( int i = 0; i < nbFaces; ++i )
+ resNorm += fId2Normal[i].second / nbFaces ;
+ return resNorm;
+ }
+
+ double angles[30];
+ for ( int i = 0; i < nbFaces; ++i )
+ {
+ const TopoDS_Face& F = TopoDS::Face( getMeshDS()->IndexToShape( fId2Normal[i].first ));
+
+ // look for two EDGEs shared by F and other FACEs within fId2Normal
+ TopoDS_Edge ee[2];
+ int nbE = 0;
+ PShapeIteratorPtr eIt = SMESH_MesherHelper::GetAncestors( V, *_mesh, TopAbs_EDGE );
+ while ( const TopoDS_Shape* E = eIt->next() )
+ {
+ if ( !SMESH_MesherHelper::IsSubShape( *E, F ))
+ continue;
+ bool isSharedEdge = false;
+ for ( int j = 0; j < nbFaces && !isSharedEdge; ++j )
+ {
+ if ( i == j ) continue;
+ const TopoDS_Shape& otherF = getMeshDS()->IndexToShape( fId2Normal[j].first );
+ isSharedEdge = SMESH_MesherHelper::IsSubShape( *E, otherF );
+ }
+ if ( !isSharedEdge )
+ continue;
+ ee[ nbE ] = TopoDS::Edge( *E );
+ ee[ nbE ].Orientation( SMESH_MesherHelper::GetSubShapeOri( F, *E ));
+ if ( ++nbE == 2 )
+ break;
+ }
+
+ // get an angle between the two EDGEs
+ angles[i] = 0;
+ if ( nbE < 1 ) continue;
+ if ( nbE == 1 )
+ {
+ ee[ 1 ] == ee[ 0 ];
+ }
+ else
+ {
+ if ( !V.IsSame( SMESH_MesherHelper::IthVertex( 0, ee[ 1 ] )))
+ std::swap( ee[0], ee[1] );
+ }
+ angles[i] = SMESH_MesherHelper::GetAngle( ee[0], ee[1], F, TopoDS::Vertex( V ));
+ }
+
+ // compute a weighted normal
+ double sumAngle = 0;
+ for ( int i = 0; i < nbFaces; ++i )
+ {
+ angles[i] = ( angles[i] > 2*M_PI ) ? 0 : M_PI - angles[i];
+ sumAngle += angles[i];
+ }
+ for ( int i = 0; i < nbFaces; ++i )
+ resNorm += angles[i] / sumAngle * fId2Normal[i].second;
+
+ return resNorm;
+}
+
//================================================================================
/*!
* \brief Find 2 neigbor nodes of a node on EDGE
_SolidData& data)
{
const SMDS_MeshNode* node = edge->_nodes[0];
- const int shapeInd = node->getshapeId();
- SMESHDS_SubMesh* edgeSM = 0;
+ const int shapeInd = node->getshapeId();
+ SMESHDS_SubMesh* edgeSM = 0;
if ( node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_EDGE )
{
-
edgeSM = getMeshDS()->MeshElements( shapeInd );
if ( !edgeSM || edgeSM->NbElements() == 0 )
return error(SMESH_Comment("Not meshed EDGE ") << shapeInd, data._index);
// Set _curvature
- double sumLen = vec1.Modulus() + vec2.Modulus();
+ double sumLen = vec1.Modulus() + vec2.Modulus();
_2neibors->_wgt[0] = 1 - vec1.Modulus() / sumLen;
_2neibors->_wgt[1] = 1 - vec2.Modulus() / sumLen;
double avgNormProj = 0.5 * ( _normal * vec1 + _normal * vec2 );
- double avgLen = 0.5 * ( vec1.Modulus() + vec2.Modulus() );
+ double avgLen = 0.5 * ( vec1.Modulus() + vec2.Modulus() );
if ( _curvature ) delete _curvature;
_curvature = _Curvature::New( avgNormProj, avgLen );
-#ifdef __myDEBUG
-// if ( _curvature )
-// cout << _nodes[0]->GetID()
-// << " CURV r,k: " << _curvature->_r<<","<<_curvature->_k
-// << " proj = "<<avgNormProj<< " len = " << avgLen << "| lenDelta(0) = "
-// << _curvature->lenDelta(0) << endl;
-#endif
+ // if ( _curvature )
+ // debugMsg( _nodes[0]->GetID()
+ // << " CURV r,k: " << _curvature->_r<<","<<_curvature->_k
+ // << " proj = "<<avgNormProj<< " len = " << avgLen << "| lenDelta(0) = "
+ // << _curvature->lenDelta(0) );
// Set _plnNorm
if ( _sWOL.IsNull() )
{
TopoDS_Shape S = helper.GetSubShapeByNode( _nodes[0], helper.GetMeshDS() );
- gp_XYZ dirE = getEdgeDir( TopoDS::Edge( S ), _nodes[0], helper );
+ TopoDS_Edge E = TopoDS::Edge( S );
+ // if ( SMESH_Algo::isDegenerated( E ))
+ // return;
+ gp_XYZ dirE = getEdgeDir( E, _nodes[0], helper );
gp_XYZ plnNorm = dirE ^ _normal;
- double proj0 = plnNorm * vec1;
- double proj1 = plnNorm * vec2;
+ double proj0 = plnNorm * vec1;
+ double proj1 = plnNorm * vec2;
if ( fabs( proj0 ) > 1e-10 || fabs( proj1 ) > 1e-10 )
{
if ( _2neibors->_plnNorm ) delete _2neibors->_plnNorm;
*/
//================================================================================
-void _LayerEdge::Copy( _LayerEdge& other, SMESH_MesherHelper& helper )
+gp_XYZ _LayerEdge::Copy( _LayerEdge& other, SMESH_MesherHelper& helper )
{
_nodes = other._nodes;
_normal = other._normal;
_curvature = 0; std::swap( _curvature, other._curvature );
_2neibors = 0; std::swap( _2neibors, other._2neibors );
+ gp_XYZ lastPos( 0,0,0 );
if ( _sWOL.ShapeType() == TopAbs_EDGE )
{
double u = helper.GetNodeU( TopoDS::Edge( _sWOL ), _nodes[0] );
_pos.push_back( gp_XYZ( u, 0, 0));
+
+ u = helper.GetNodeU( TopoDS::Edge( _sWOL ), _nodes.back() );
+ lastPos.SetX( u );
}
else // TopAbs_FACE
{
gp_XY uv = helper.GetNodeUV( TopoDS::Face( _sWOL ), _nodes[0]);
_pos.push_back( gp_XYZ( uv.X(), uv.Y(), 0));
+
+ uv = helper.GetNodeUV( TopoDS::Face( _sWOL ), _nodes.back() );
+ lastPos.SetX( uv.X() );
+ lastPos.SetY( uv.Y() );
}
+ return lastPos;
}
//================================================================================
void _LayerEdge::SetCosin( double cosin )
{
_cosin = cosin;
- _lenFactor = ( _cosin > 0.1 ) ? 1./sqrt(1-_cosin*_cosin) : 1.0;
+ cosin = Abs( _cosin );
+ _lenFactor = ( /*0.1 < cosin &&*/ cosin < 1-1e-12 ) ? 1./sqrt(1-cosin*cosin) : 1.0;
}
//================================================================================
const _SolidData* dataToCheckOri,
const bool toSort)
{
+ simplices.clear();
SMDS_ElemIteratorPtr fIt = node->GetInverseElementIterator(SMDSAbs_Face);
while ( fIt->more() )
{
const SMDS_MeshElement* f = fIt->next();
- const TGeomID shapeInd = f->getshapeId();
+ const TGeomID shapeInd = f->getshapeId();
if ( ingnoreShapes.count( shapeInd )) continue;
const int nbNodes = f->NbCornerNodes();
- int srcInd = f->GetNodeIndex( node );
+ const int srcInd = f->GetNodeIndex( node );
const SMDS_MeshNode* nPrev = f->GetNode( SMESH_MesherHelper::WrapIndex( srcInd-1, nbNodes ));
const SMDS_MeshNode* nNext = f->GetNode( SMESH_MesherHelper::WrapIndex( srcInd+1, nbNodes ));
const SMDS_MeshNode* nOpp = f->GetNode( SMESH_MesherHelper::WrapIndex( srcInd+2, nbNodes ));
void _ViscousBuilder::makeGroupOfLE()
{
#ifdef _DEBUG_
- for ( unsigned i = 0 ; i < _sdVec.size(); ++i )
+ for ( size_t i = 0 ; i < _sdVec.size(); ++i )
{
if ( _sdVec[i]._edges.empty() ) continue;
-// string name = SMESH_Comment("_LayerEdge's_") << i;
-// int id;
-// SMESH_Group* g = _mesh->AddGroup(SMDSAbs_Edge, name.c_str(), id );
-// SMESHDS_Group* gDS = (SMESHDS_Group*)g->GetGroupDS();
-// SMESHDS_Mesh* mDS = _mesh->GetMeshDS();
dumpFunction( SMESH_Comment("make_LayerEdge_") << i );
- for ( unsigned j = 0 ; j < _sdVec[i]._edges.size(); ++j )
+ for ( size_t j = 0 ; j < _sdVec[i]._edges.size(); ++j )
{
_LayerEdge* le = _sdVec[i]._edges[j];
- for ( unsigned iN = 1; iN < le->_nodes.size(); ++iN )
+ for ( size_t iN = 1; iN < le->_nodes.size(); ++iN )
dumpCmd(SMESH_Comment("mesh.AddEdge([ ") <<le->_nodes[iN-1]->GetID()
<< ", " << le->_nodes[iN]->GetID() <<"])");
- //gDS->SMDSGroup().Add( mDS->AddEdge( le->_nodes[iN-1], le->_nodes[iN]));
}
dumpFunctionEnd();
dumpFunction( SMESH_Comment("makeNormals") << i );
- for ( unsigned j = 0 ; j < _sdVec[i]._edges.size(); ++j )
+ for ( size_t j = 0 ; j < _sdVec[i]._edges.size(); ++j )
{
_LayerEdge& edge = *_sdVec[i]._edges[j];
SMESH_TNodeXYZ nXYZ( edge._nodes[0] );
}
dumpFunctionEnd();
-// name = SMESH_Comment("tmp_faces ") << i;
-// g = _mesh->AddGroup(SMDSAbs_Face, name.c_str(), id );
-// gDS = (SMESHDS_Group*)g->GetGroupDS();
-// SMESH_MeshEditor editor( _mesh );
dumpFunction( SMESH_Comment("makeTmpFaces_") << i );
TopExp_Explorer fExp( _sdVec[i]._solid, TopAbs_FACE );
for ( ; fExp.More(); fExp.Next() )
for ( int j=0; j < e->NbCornerNodes(); ++j )
cmd << e->GetNode(j)->GetID() << (j+1<e->NbCornerNodes() ? ",": "])");
dumpCmd( cmd );
- //vector<const SMDS_MeshNode*> nodes( e->begin_nodes(), e->end_nodes() );
- //gDS->SMDSGroup().Add( editor.AddElement( nodes, e->GetType(), e->IsPoly()));
}
}
}
#endif
}
+//================================================================================
+/*!
+ * \brief Find maximal _LayerEdge length (layer thickness) limited by geometry
+ */
+//================================================================================
+
+void _ViscousBuilder::computeGeomSize( _SolidData& data )
+{
+ data._geomSize = Precision::Infinite();
+ double intersecDist;
+ auto_ptr<SMESH_ElementSearcher> searcher
+ ( SMESH_MeshAlgos::GetElementSearcher( *getMeshDS(),
+ data._proxyMesh->GetFaces( data._solid )) );
+
+ TNode2Edge::iterator n2e = data._n2eMap.begin(), n2eEnd = data._n2eMap.end();
+ for ( ; n2e != n2eEnd; ++n2e )
+ {
+ _LayerEdge* edge = n2e->second;
+ if ( edge->IsOnEdge() ) continue;
+ edge->FindIntersection( *searcher, intersecDist, data._epsilon );
+ if ( data._geomSize > intersecDist && intersecDist > 0 )
+ data._geomSize = intersecDist;
+ }
+}
+
//================================================================================
/*!
* \brief Increase length of _LayerEdge's to reach the required thickness of layers
// Limit inflation step size by geometry size found by itersecting
// normals of _LayerEdge's with mesh faces
- double geomSize = Precision::Infinite(), intersecDist;
- auto_ptr<SMESH_ElementSearcher> searcher
- ( SMESH_MeshAlgos::GetElementSearcher( *getMeshDS(),
- data._proxyMesh->GetFaces( data._solid )) );
- for ( unsigned i = 0; i < data._edges.size(); ++i )
- {
- if ( data._edges[i]->IsOnEdge() ) continue;
- data._edges[i]->FindIntersection( *searcher, intersecDist, data._epsilon );
- if ( geomSize > intersecDist && intersecDist > 0 )
- geomSize = intersecDist;
- }
- if ( data._stepSize > 0.3 * geomSize )
- limitStepSize( data, 0.3 * geomSize );
+ if ( data._stepSize > 0.3 * data._geomSize )
+ limitStepSize( data, 0.3 * data._geomSize );
const double tgtThick = data._hyp->GetTotalThickness();
if ( data._stepSize > tgtThick )
if ( data._stepSize < 1. )
data._epsilon = data._stepSize * 1e-7;
-#ifdef __myDEBUG
- cout << "-- geomSize = " << geomSize << ", stepSize = " << data._stepSize << endl;
-#endif
+ debugMsg( "-- geomSize = " << data._geomSize << ", stepSize = " << data._stepSize );
double avgThick = 0, curThick = 0, distToIntersection = Precision::Infinite();
int nbSteps = 0, nbRepeats = 0;
// Elongate _LayerEdge's
dumpFunction(SMESH_Comment("inflate")<<data._index<<"_step"<<nbSteps); // debug
- for ( unsigned i = 0; i < data._edges.size(); ++i )
+ for ( size_t i = 0; i < data._edges.size(); ++i )
{
data._edges[i]->SetNewLength( curThick, helper );
}
dumpFunctionEnd();
- if ( !nbSteps )
- if ( !updateNormals( data, helper ) )
- return false;
+ if ( !updateNormals( data, helper, nbSteps ))
+ return false;
// Improve and check quality
if ( !smoothAndCheck( data, nbSteps, distToIntersection ))
if ( nbSteps > 0 )
{
dumpFunction(SMESH_Comment("invalidate")<<data._index<<"_step"<<nbSteps); // debug
- for ( unsigned i = 0; i < data._edges.size(); ++i )
+ for ( size_t i = 0; i < data._edges.size(); ++i )
{
data._edges[i]->InvalidateStep( nbSteps+1 );
}
// Evaluate achieved thickness
avgThick = 0;
- for ( unsigned i = 0; i < data._edges.size(); ++i )
+ for ( size_t i = 0; i < data._edges.size(); ++i )
avgThick += data._edges[i]->_len;
avgThick /= data._edges.size();
-#ifdef __myDEBUG
- cout << "-- Thickness " << avgThick << " reached" << endl;
-#endif
+ debugMsg( "-- Thickness " << avgThick << " reached" );
if ( distToIntersection < avgThick*1.5 )
{
-#ifdef __myDEBUG
- cout << "-- Stop inflation since distToIntersection( "<<distToIntersection<<" ) < avgThick( "
- << avgThick << " ) * 1.5" << endl;
-#endif
+ debugMsg( "-- Stop inflation since "
+ << " distToIntersection( "<<distToIntersection<<" ) < avgThick( "
+ << avgThick << " ) * 1.5" );
break;
}
// new step size
if ( data._stepSizeNodes[0] )
data._stepSize = data._stepSizeCoeff *
SMESH_TNodeXYZ(data._stepSizeNodes[0]).Distance(data._stepSizeNodes[1]);
- }
+
+ } // while ( 1.01 * avgThick < tgtThick )
if (nbSteps == 0 )
return error("failed at the very first inflation step", data._index);
+ if ( 1.01 * avgThick < tgtThick )
+ if ( SMESH_subMesh* sm = _mesh->GetSubMeshContaining( data._index ))
+ {
+ SMESH_ComputeErrorPtr& smError = sm->GetComputeError();
+ if ( !smError || smError->IsOK() )
+ smError.reset
+ ( new SMESH_ComputeError (COMPERR_WARNING,
+ SMESH_Comment("Thickness ") << tgtThick <<
+ " of viscous layers not reached,"
+ " average reached thickness is " << avgThick ));
+ }
+
+
+ // Restore position of src nodes moved by infaltion on _noShrinkShapes
+ dumpFunction(SMESH_Comment("restoNoShrink_So")<<data._index); // debug
+ int iBeg, iEnd = 0;
+ for ( int iS = 0; iS < data._endEdgeOnShape.size(); ++iS )
+ {
+ iBeg = iEnd;
+ iEnd = data._endEdgeOnShape[ iS ];
+ if ( data._edges[ iBeg ]->_nodes.size() == 1 )
+ for ( ; iBeg < iEnd; ++iBeg )
+ {
+ restoreNoShrink( *data._edges[ iBeg ] );
+ }
+ }
+ dumpFunctionEnd();
+
return true;
}
const int nbSteps,
double & distToIntersection)
{
- if ( data._endEdgeToSmooth.empty() )
+ if ( data._nbShapesToSmooth == 0 )
return true; // no shapes needing smoothing
bool moved, improved;
TopoDS_Face F;
int iBeg, iEnd = 0;
- for ( unsigned iS = 0; iS < data._endEdgeToSmooth.size(); ++iS )
+ for ( int iS = 0; iS < data._nbShapesToSmooth; ++iS )
{
iBeg = iEnd;
- iEnd = data._endEdgeToSmooth[ iS ];
+ iEnd = data._endEdgeOnShape[ iS ];
if ( !data._edges[ iBeg ]->_sWOL.IsNull() &&
data._edges[ iBeg ]->_sWOL.ShapeType() == TopAbs_FACE )
dumpCmd( SMESH_Comment("# end step ")<<step);
}
while ( moved && step++ < 5 );
- //cout << " NB STEPS: " << step << endl;
}
dumpFunctionEnd();
}
else
{
// smooth on FACE's
- int step = 0, badNb = 0; moved = true;
- while (( ++step <= 5 && moved ) || improved )
+ int step = 0, stepLimit = 5, badNb = 0; moved = true;
+ while (( ++step <= stepLimit && moved ) || improved )
{
dumpFunction(SMESH_Comment("smooth")<<data._index<<"_Fa"<<sInd
<<"_InfStep"<<nbSteps<<"_"<<step); // debug
int oldBadNb = badNb;
badNb = 0;
moved = false;
- for ( int i = iBeg; i < iEnd; ++i )
- moved |= data._edges[i]->Smooth(badNb);
+ if ( step % 2 )
+ for ( int i = iBeg; i < iEnd; ++i )
+ moved |= data._edges[i]->Smooth(badNb);
+ else
+ for ( int i = iEnd-1; i >= iBeg; --i )
+ moved |= data._edges[i]->Smooth(badNb);
improved = ( badNb < oldBadNb );
+ // issue 22576 -- no bad faces but still there are intersections to fix
+ if ( improved && badNb == 0 )
+ stepLimit = step + 3;
+
dumpFunctionEnd();
}
if ( badNb > 0 )
{
_LayerEdge* edge = data._edges[i];
SMESH_TNodeXYZ tgtXYZ( edge->_nodes.back() );
- for ( unsigned j = 0; j < edge->_simplices.size(); ++j )
+ for ( size_t j = 0; j < edge->_simplices.size(); ++j )
if ( !edge->_simplices[j].IsForward( edge->_nodes[0], &tgtXYZ ))
{
cout << "Bad simplex ( " << edge->_nodes[0]->GetID()<< " "<< tgtXYZ._node->GetID()
}
} // loop on shapes to smooth
+ // Check orientation of simplices of _ConvexFace::_simplexTestEdges
+ map< TGeomID, _ConvexFace >::iterator id2face = data._convexFaces.begin();
+ for ( ; id2face != data._convexFaces.end(); ++id2face )
+ {
+ _ConvexFace & convFace = (*id2face).second;
+ if ( !convFace._simplexTestEdges.empty() &&
+ convFace._simplexTestEdges[0]->_nodes[0]->GetPosition()->GetDim() == 2 )
+ continue; // _simplexTestEdges are based on FACE -- already checked while smoothing
+
+ if ( !convFace.CheckPrisms() )
+ return false;
+ }
+
// Check if the last segments of _LayerEdge intersects 2D elements;
// checked elements are either temporary faces or faces on surfaces w/o the layers
distToIntersection = Precision::Infinite();
double dist;
const SMDS_MeshElement* intFace = 0;
-#ifdef __myDEBUG
const SMDS_MeshElement* closestFace = 0;
int iLE = 0;
-#endif
- for ( unsigned i = 0; i < data._edges.size(); ++i )
+ for ( size_t i = 0; i < data._edges.size(); ++i )
{
+ if ( !data._edges[i]->_sWOL.IsNull() )
+ continue;
if ( data._edges[i]->FindIntersection( *searcher, dist, data._epsilon, &intFace ))
return false;
if ( distToIntersection > dist )
{
+ // ignore intersection of a _LayerEdge based on a _ConvexFace with a face
+ // lying on this _ConvexFace
+ if ( _ConvexFace* convFace = data.GetConvexFace( intFace->getshapeId() ))
+ if ( convFace->_subIdToEdgeEnd.count ( data._edges[i]->_nodes[0]->getshapeId() ))
+ continue;
+
distToIntersection = dist;
-#ifdef __myDEBUG
iLE = i;
closestFace = intFace;
-#endif
}
}
#ifdef __myDEBUG
if ( i2curve == _edge2curve.end() )
{
// sort _LayerEdge's by position on the EDGE
- {
- map< double, _LayerEdge* > u2edge;
- for ( int i = iFrom; i < iTo; ++i )
- u2edge.insert( make_pair( helper.GetNodeU( E, _edges[i]->_nodes[0] ), _edges[i] ));
-
- ASSERT( u2edge.size() == iTo - iFrom );
- map< double, _LayerEdge* >::iterator u2e = u2edge.begin();
- for ( int i = iFrom; i < iTo; ++i, ++u2e )
- _edges[i] = u2e->second;
-
- // set _2neibors according to the new order
- for ( int i = iFrom; i < iTo-1; ++i )
- if ( _edges[i]->_2neibors->_nodes[1] != _edges[i+1]->_nodes.back() )
- _edges[i]->_2neibors->reverse();
- if ( u2edge.size() > 1 &&
- _edges[iTo-1]->_2neibors->_nodes[0] != _edges[iTo-2]->_nodes.back() )
- _edges[iTo-1]->_2neibors->reverse();
- }
+ SortOnEdge( E, iFrom, iTo, helper );
SMESHDS_SubMesh* smDS = helper.GetMeshDS()->MeshElements( eIndex );
bndBox.Add( SMESH_TNodeXYZ( nIt->next() ));
gp_XYZ size = bndBox.CornerMax() - bndBox.CornerMin();
- SMESH_TNodeXYZ p0( _edges[iFrom]->_2neibors->_nodes[0] );
- SMESH_TNodeXYZ p1( _edges[iFrom]->_2neibors->_nodes[1] );
+ SMESH_TNodeXYZ p0( _edges[iFrom]->_2neibors->tgtNode(0) );
+ SMESH_TNodeXYZ p1( _edges[iFrom]->_2neibors->tgtNode(1) );
const double lineTol = 1e-2 * ( p0 - p1 ).Modulus();
for ( int i = 0; i < 3 && !isLine; ++i )
isLine = ( size.Coord( i+1 ) <= lineTol );
return i2curve->second;
}
+//================================================================================
+/*!
+ * \brief Sort _LayerEdge's by a parameter on a given EDGE
+ */
+//================================================================================
+
+void _SolidData::SortOnEdge( const TopoDS_Edge& E,
+ const int iFrom,
+ const int iTo,
+ SMESH_MesherHelper& helper)
+{
+ map< double, _LayerEdge* > u2edge;
+ for ( int i = iFrom; i < iTo; ++i )
+ u2edge.insert( make_pair( helper.GetNodeU( E, _edges[i]->_nodes[0] ), _edges[i] ));
+
+ ASSERT( u2edge.size() == iTo - iFrom );
+ map< double, _LayerEdge* >::iterator u2e = u2edge.begin();
+ for ( int i = iFrom; i < iTo; ++i, ++u2e )
+ _edges[i] = u2e->second;
+
+ // set _2neibors according to the new order
+ for ( int i = iFrom; i < iTo-1; ++i )
+ if ( _edges[i]->_2neibors->tgtNode(1) != _edges[i+1]->_nodes.back() )
+ _edges[i]->_2neibors->reverse();
+ if ( u2edge.size() > 1 &&
+ _edges[iTo-1]->_2neibors->tgtNode(0) != _edges[iTo-2]->_nodes.back() )
+ _edges[iTo-1]->_2neibors->reverse();
+}
+
+//================================================================================
+/*!
+ * \brief Return index corresponding to the shape in _endEdgeOnShape
+ */
+//================================================================================
+
+bool _SolidData::GetShapeEdges(const TGeomID shapeID,
+ size_t & edgesEnd,
+ int* iBeg,
+ int* iEnd ) const
+{
+ int beg = 0, end = 0;
+ for ( edgesEnd = 0; edgesEnd < _endEdgeOnShape.size(); ++edgesEnd )
+ {
+ end = _endEdgeOnShape[ edgesEnd ];
+ TGeomID sID = _edges[ beg ]->_nodes[0]->getshapeId();
+ if ( sID == shapeID )
+ {
+ if ( iBeg ) *iBeg = beg;
+ if ( iEnd ) *iEnd = end;
+ return true;
+ }
+ beg = end;
+ }
+ return false;
+}
+
+//================================================================================
+/*!
+ * \brief Add faces for smoothing
+ */
+//================================================================================
+
+void _SolidData::AddShapesToSmooth( const set< TGeomID >& faceIDs )
+{
+ // convert faceIDs to indices in _endEdgeOnShape
+ set< size_t > iEnds;
+ size_t end;
+ set< TGeomID >::const_iterator fId = faceIDs.begin();
+ for ( ; fId != faceIDs.end(); ++fId )
+ if ( GetShapeEdges( *fId, end ) && end >= _nbShapesToSmooth )
+ iEnds.insert( end );
+
+ set< size_t >::iterator endsIt = iEnds.begin();
+
+ // "add" by move of _nbShapesToSmooth
+ int nbFacesToAdd = iEnds.size();
+ while ( endsIt != iEnds.end() && *endsIt == _nbShapesToSmooth )
+ {
+ ++endsIt;
+ ++_nbShapesToSmooth;
+ --nbFacesToAdd;
+ }
+ if ( endsIt == iEnds.end() )
+ return;
+
+ // Move _LayerEdge's on FACEs just after _nbShapesToSmooth
+
+ vector< _LayerEdge* > nonSmoothLE, smoothLE;
+ size_t lastSmooth = *iEnds.rbegin();
+ int iBeg, iEnd;
+ for ( size_t i = _nbShapesToSmooth; i <= lastSmooth; ++i )
+ {
+ vector< _LayerEdge* > & edgesVec = iEnds.count(i) ? smoothLE : nonSmoothLE;
+ iBeg = i ? _endEdgeOnShape[ i-1 ] : 0;
+ iEnd = _endEdgeOnShape[ i ];
+ edgesVec.insert( edgesVec.end(), _edges.begin() + iBeg, _edges.begin() + iEnd );
+ }
+
+ iBeg = _nbShapesToSmooth ? _endEdgeOnShape[ _nbShapesToSmooth-1 ] : 0;
+ std::copy( smoothLE.begin(), smoothLE.end(), &_edges[ iBeg ] );
+ std::copy( nonSmoothLE.begin(), nonSmoothLE.end(), &_edges[ iBeg + smoothLE.size()]);
+
+ // update _endEdgeOnShape
+ for ( size_t i = _nbShapesToSmooth; i < _endEdgeOnShape.size(); ++i )
+ {
+ TGeomID curShape = _edges[ iBeg ]->_nodes[0]->getshapeId();
+ while ( ++iBeg < _edges.size() &&
+ curShape == _edges[ iBeg ]->_nodes[0]->getshapeId() );
+
+ _endEdgeOnShape[ i ] = iBeg;
+ }
+
+ _nbShapesToSmooth += nbFacesToAdd;
+}
+
//================================================================================
/*!
* \brief smooth _LayerEdge's on a staight EDGE or circular EDGE
{
if ( F.IsNull() ) // 3D
{
- SMESH_TNodeXYZ p0( data._edges[iFrom]->_2neibors->_nodes[0]);
- SMESH_TNodeXYZ p1( data._edges[iTo-1]->_2neibors->_nodes[1]);
+ SMESH_TNodeXYZ p0( data._edges[iFrom]->_2neibors->tgtNode(0));
+ SMESH_TNodeXYZ p1( data._edges[iTo-1]->_2neibors->tgtNode(1));
for ( int i = iFrom; i < iTo; ++i )
{
double r = len[i-iFrom] / len.back();
}
else
{
- gp_XY uv0 = helper.GetNodeUV( F, data._edges[iFrom]->_2neibors->_nodes[0]);
- gp_XY uv1 = helper.GetNodeUV( F, data._edges[iTo-1]->_2neibors->_nodes[1]);
- if ( data._edges[iFrom]->_2neibors->_nodes[0] ==
- data._edges[iTo-1]->_2neibors->_nodes[1] ) // closed edge
+ // gp_XY uv0 = helper.GetNodeUV( F, data._edges[iFrom]->_2neibors->tgtNode(0));
+ // gp_XY uv1 = helper.GetNodeUV( F, data._edges[iTo-1]->_2neibors->tgtNode(1));
+ gp_XY uv0 = data._edges[iFrom]->_2neibors->_edges[0]->LastUV( F );
+ gp_XY uv1 = data._edges[iTo-1]->_2neibors->_edges[1]->LastUV( F );
+ if ( data._edges[iFrom]->_2neibors->tgtNode(0) ==
+ data._edges[iTo-1]->_2neibors->tgtNode(1) ) // closed edge
{
int iPeriodic = helper.GetPeriodicIndex();
if ( iPeriodic == 1 || iPeriodic == 2 )
if ( F.IsNull() ) // 3D
{
- if ( data._edges[iFrom]->_2neibors->_nodes[0] ==
- data._edges[iTo-1]->_2neibors->_nodes[1] )
+ if ( data._edges[iFrom]->_2neibors->tgtNode(0) ==
+ data._edges[iTo-1]->_2neibors->tgtNode(1) )
return true; // closed EDGE - nothing to do
return false; // TODO ???
{
const gp_XY center( center3D.X(), center3D.Y() );
- gp_XY uv0 = helper.GetNodeUV( F, data._edges[iFrom]->_2neibors->_nodes[0]);
- gp_XY uvM = helper.GetNodeUV( F, data._edges[iFrom]->_nodes.back());
- gp_XY uv1 = helper.GetNodeUV( F, data._edges[iTo-1]->_2neibors->_nodes[1]);
+ gp_XY uv0 = data._edges[iFrom]->_2neibors->_edges[0]->LastUV( F );
+ gp_XY uvM = data._edges[iFrom]->LastUV( F );
+ gp_XY uv1 = data._edges[iTo-1]->_2neibors->_edges[1]->LastUV( F );
+ // gp_XY uv0 = helper.GetNodeUV( F, data._edges[iFrom]->_2neibors->tgtNode(0));
+ // gp_XY uvM = helper.GetNodeUV( F, data._edges[iFrom]->_nodes.back());
+ // gp_XY uv1 = helper.GetNodeUV( F, data._edges[iTo-1]->_2neibors->tgtNode(1));
gp_Vec2d vec0( center, uv0 );
gp_Vec2d vecM( center, uvM );
gp_Vec2d vec1( center, uv1 );
double uLast = vec0.Angle( vec1 ); // -PI - +PI
double uMidl = vec0.Angle( vecM );
- if ( uLast * uMidl < 0. )
+ if ( uLast * uMidl <= 0. )
uLast += ( uMidl > 0 ? +2. : -2. ) * M_PI;
const double radius = 0.5 * ( vec0.Magnitude() + vec1.Magnitude() );
//================================================================================
bool _ViscousBuilder::updateNormals( _SolidData& data,
- SMESH_MesherHelper& helper )
+ SMESH_MesherHelper& helper,
+ int stepNb )
{
+ if ( stepNb > 0 )
+ return updateNormalsOfConvexFaces( data, helper, stepNb );
+
// make temporary quadrangles got by extrusion of
// mesh edges along _LayerEdge._normal's
vector< const SMDS_MeshNode*> nodes(4); // of a tmp mesh face
dumpFunction(SMESH_Comment("makeTmpFacesOnEdges")<<data._index);
- for ( unsigned i = 0; i < data._edges.size(); ++i )
+ for ( size_t i = 0; i < data._edges.size(); ++i )
{
_LayerEdge* edge = data._edges[i];
if ( !edge->IsOnEdge() || !edge->_sWOL.IsNull() ) continue;
const SMDS_MeshNode* tgt1 = edge->_nodes.back();
for ( int j = 0; j < 2; ++j ) // loop on _2NearEdges
{
- const SMDS_MeshNode* tgt2 = edge->_2neibors->_nodes[j];
+ const SMDS_MeshNode* tgt2 = edge->_2neibors->tgtNode(j);
pair< set< SMESH_TLink >::iterator, bool > link_isnew =
extrudedLinks.insert( SMESH_TLink( tgt1, tgt2 ));
if ( !link_isnew.second )
extrudedLinks.erase( link_isnew.first );
continue; // already extruded and will no more encounter
}
- // look for a _LayerEdge containg tgt2
-// _LayerEdge* neiborEdge = 0;
-// unsigned di = 0; // check _edges[i+di] and _edges[i-di]
-// while ( !neiborEdge && ++di <= data._edges.size() )
-// {
-// if ( i+di < data._edges.size() && data._edges[i+di]->_nodes.back() == tgt2 )
-// neiborEdge = data._edges[i+di];
-// else if ( di <= i && data._edges[i-di]->_nodes.back() == tgt2 )
-// neiborEdge = data._edges[i-di];
-// }
-// if ( !neiborEdge )
-// return error("updateNormals(): neighbor _LayerEdge not found", data._index);
+ // a _LayerEdge containg tgt2
_LayerEdge* neiborEdge = edge->_2neibors->_edges[j];
- TmpMeshFaceOnEdge* f = new TmpMeshFaceOnEdge( edge, neiborEdge, --_tmpFaceID );
+ _TmpMeshFaceOnEdge* f = new _TmpMeshFaceOnEdge( edge, neiborEdge, --_tmpFaceID );
tmpFaces.push_back( f );
dumpCmd(SMESH_Comment("mesh.AddFace([ ")
TLEdge2LEdgeSet edge2CloseEdge;
const double eps = data._epsilon * data._epsilon;
- for ( unsigned i = 0; i < data._edges.size(); ++i )
+ for ( size_t i = 0; i < data._edges.size(); ++i )
{
_LayerEdge* edge = data._edges[i];
- if ( !edge->IsOnEdge() || !edge->_sWOL.IsNull() ) continue;
+ if (( !edge->IsOnEdge() ) &&
+ ( edge->_sWOL.IsNull() || edge->_sWOL.ShapeType() != TopAbs_FACE ))
+ continue;
if ( edge->FindIntersection( *searcher, dist, eps, &face ))
{
- const TmpMeshFaceOnEdge* f = (const TmpMeshFaceOnEdge*) face;
+ const _TmpMeshFaceOnEdge* f = (const _TmpMeshFaceOnEdge*) face;
set< _LayerEdge*, _LayerEdgeCmp > & ee = edge2CloseEdge[ edge ];
ee.insert( f->_le1 );
ee.insert( f->_le2 );
{
dumpFunction(SMESH_Comment("updateNormals")<<data._index);
+ set< TGeomID > shapesToSmooth;
+
+ // vector to store new _normal and _cosin for each edge in edge2CloseEdge
+ vector< pair< _LayerEdge*, _LayerEdge > > edge2newEdge( edge2CloseEdge.size() );
+
TLEdge2LEdgeSet::iterator e2ee = edge2CloseEdge.begin();
- for ( ; e2ee != edge2CloseEdge.end(); ++e2ee )
+ for ( size_t iE = 0; e2ee != edge2CloseEdge.end(); ++e2ee, ++iE )
{
- _LayerEdge* edge1 = e2ee->first;
- _LayerEdge* edge2 = 0;
- set< _LayerEdge*, _LayerEdgeCmp >& ee = e2ee->second;
+ _LayerEdge* edge1 = e2ee->first;
+ _LayerEdge* edge2 = 0;
+ set< _LayerEdge*, _LayerEdgeCmp >& ee = e2ee->second;
+
+ edge2newEdge[ iE ].first = NULL;
// find EDGEs the edges reside
- TopoDS_Edge E1, E2;
- TopoDS_Shape S = helper.GetSubShapeByNode( edge1->_nodes[0], getMeshDS() );
- if ( S.ShapeType() != TopAbs_EDGE )
- continue; // TODO: find EDGE by VERTEX
- E1 = TopoDS::Edge( S );
+ // TopoDS_Edge E1, E2;
+ // TopoDS_Shape S = helper.GetSubShapeByNode( edge1->_nodes[0], getMeshDS() );
+ // if ( S.ShapeType() != TopAbs_EDGE )
+ // continue; // TODO: find EDGE by VERTEX
+ // E1 = TopoDS::Edge( S );
set< _LayerEdge*, _LayerEdgeCmp >::iterator eIt = ee.begin();
- while ( E2.IsNull() && eIt != ee.end())
+ for ( ; !edge2 && eIt != ee.end(); ++eIt )
{
- _LayerEdge* e2 = *eIt++;
- TopoDS_Shape S = helper.GetSubShapeByNode( e2->_nodes[0], getMeshDS() );
- if ( S.ShapeType() == TopAbs_EDGE )
- E2 = TopoDS::Edge( S ), edge2 = e2;
+ if ( edge1->_sWOL == (*eIt)->_sWOL )
+ edge2 = *eIt;
}
- if ( E2.IsNull() ) continue; // TODO: find EDGE by VERTEX
+ if ( !edge2 ) continue;
+
+ edge2newEdge[ iE ].first = edge1;
+ _LayerEdge& newEdge = edge2newEdge[ iE ].second;
+ // while ( E2.IsNull() && eIt != ee.end())
+ // {
+ // _LayerEdge* e2 = *eIt++;
+ // TopoDS_Shape S = helper.GetSubShapeByNode( e2->_nodes[0], getMeshDS() );
+ // if ( S.ShapeType() == TopAbs_EDGE )
+ // E2 = TopoDS::Edge( S ), edge2 = e2;
+ // }
+ // if ( E2.IsNull() ) continue; // TODO: find EDGE by VERTEX
// find 3 FACEs sharing 2 EDGEs
- TopoDS_Face FF1[2], FF2[2];
- PShapeIteratorPtr fIt = helper.GetAncestors(E1, *_mesh, TopAbs_FACE);
- while ( fIt->more() && FF1[1].IsNull())
+ // TopoDS_Face FF1[2], FF2[2];
+ // PShapeIteratorPtr fIt = helper.GetAncestors(E1, *_mesh, TopAbs_FACE);
+ // while ( fIt->more() && FF1[1].IsNull() )
+ // {
+ // const TopoDS_Face *F = (const TopoDS_Face*) fIt->next();
+ // if ( helper.IsSubShape( *F, data._solid))
+ // FF1[ FF1[0].IsNull() ? 0 : 1 ] = *F;
+ // }
+ // fIt = helper.GetAncestors(E2, *_mesh, TopAbs_FACE);
+ // while ( fIt->more() && FF2[1].IsNull())
+ // {
+ // const TopoDS_Face *F = (const TopoDS_Face*) fIt->next();
+ // if ( helper.IsSubShape( *F, data._solid))
+ // FF2[ FF2[0].IsNull() ? 0 : 1 ] = *F;
+ // }
+ // // exclude a FACE common to E1 and E2 (put it to FFn[1] )
+ // if ( FF1[0].IsSame( FF2[0]) || FF1[0].IsSame( FF2[1]))
+ // std::swap( FF1[0], FF1[1] );
+ // if ( FF2[0].IsSame( FF1[0]) )
+ // std::swap( FF2[0], FF2[1] );
+ // if ( FF1[0].IsNull() || FF2[0].IsNull() )
+ // continue;
+
+ // get a new normal for edge1
+ //bool ok;
+ gp_Vec dir1 = edge1->_normal, dir2 = edge2->_normal;
+ // if ( edge1->_cosin < 0 )
+ // dir1 = getFaceDir( FF1[0], E1, edge1->_nodes[0], helper, ok ).Normalized();
+ // if ( edge2->_cosin < 0 )
+ // dir2 = getFaceDir( FF2[0], E2, edge2->_nodes[0], helper, ok ).Normalized();
+
+ double cos1 = Abs( edge1->_cosin ), cos2 = Abs( edge2->_cosin );
+ double wgt1 = ( cos1 + 0.001 ) / ( cos1 + cos2 + 0.002 );
+ double wgt2 = ( cos2 + 0.001 ) / ( cos1 + cos2 + 0.002 );
+ newEdge._normal = ( wgt1 * dir1 + wgt2 * dir2 ).XYZ();
+ newEdge._normal.Normalize();
+
+ // cout << edge1->_nodes[0]->GetID() << " "
+ // << edge2->_nodes[0]->GetID() << " NORM: "
+ // << newEdge._normal.X() << ", " << newEdge._normal.Y() << ", " << newEdge._normal.Z() << endl;
+
+ // get new cosin
+ if ( cos1 < theMinSmoothCosin )
{
- const TopoDS_Face *F = (const TopoDS_Face*) fIt->next();
- if ( helper.IsSubShape( *F, data._solid))
- FF1[ FF1[0].IsNull() ? 0 : 1 ] = *F;
+ newEdge._cosin = edge2->_cosin;
}
- fIt = helper.GetAncestors(E2, *_mesh, TopAbs_FACE);
- while ( fIt->more() && FF2[1].IsNull())
+ else if ( cos2 > theMinSmoothCosin ) // both cos1 and cos2 > theMinSmoothCosin
{
- const TopoDS_Face *F = (const TopoDS_Face*) fIt->next();
- if ( helper.IsSubShape( *F, data._solid))
- FF2[ FF2[0].IsNull() ? 0 : 1 ] = *F;
+ // gp_Vec dirInFace;
+ // if ( edge1->_cosin < 0 )
+ // dirInFace = dir1;
+ // else
+ // dirInFace = getFaceDir( FF1[0], E1, edge1->_nodes[0], helper, ok );
+ // double angle = dirInFace.Angle( edge1->_normal ); // [0,PI]
+ // edge1->SetCosin( Cos( angle ));
+ //newEdge._cosin = 0; // ???????????
+ newEdge._cosin = ( wgt1 * cos1 + wgt2 * cos2 ) * edge1->_cosin / cos1;
}
- // exclude a FACE common to E1 and E2 (put it at [1] in FF* )
- if ( FF1[0].IsSame( FF2[0]) || FF1[0].IsSame( FF2[1]))
- std::swap( FF1[0], FF1[1] );
- if ( FF2[0].IsSame( FF1[0]) )
- std::swap( FF2[0], FF2[1] );
- if ( FF1[0].IsNull() || FF2[0].IsNull() )
- continue;
-
-// // get a new normal for edge1
- bool ok;
- gp_Vec dir1 = edge1->_normal, dir2 = edge2->_normal;
- if ( edge1->_cosin < 0 )
- dir1 = getFaceDir( FF1[0], E1, edge1->_nodes[0], helper, ok ).Normalized();
- if ( edge2->_cosin < 0 )
- dir2 = getFaceDir( FF2[0], E2, edge2->_nodes[0], helper, ok ).Normalized();
- // gp_Vec dir1 = getFaceDir( FF1[0], E1, edge1->_nodes[0], helper, ok );
-// gp_Vec dir2 = getFaceDir( FF2[0], E2, edge2->_nodes[0], helper, ok2 );
-// double wgt1 = ( edge1->_cosin + 1 ) / ( edge1->_cosin + edge2->_cosin + 2 );
-// double wgt2 = ( edge2->_cosin + 1 ) / ( edge1->_cosin + edge2->_cosin + 2 );
-// gp_Vec newNorm = wgt1 * dir1 + wgt2 * dir2;
-// newNorm.Normalize();
-
- double wgt1 = ( edge1->_cosin + 1 ) / ( edge1->_cosin + edge2->_cosin + 2 );
- double wgt2 = ( edge2->_cosin + 1 ) / ( edge1->_cosin + edge2->_cosin + 2 );
- gp_Vec newNorm = wgt1 * dir1 + wgt2 * dir2;
- newNorm.Normalize();
-
- edge1->_normal = newNorm.XYZ();
-
- // update data of edge1 depending on _normal
- const SMDS_MeshNode *n1, *n2;
- n1 = edge1->_2neibors->_edges[0]->_nodes[0];
- n2 = edge1->_2neibors->_edges[1]->_nodes[0];
- //if ( !findNeiborsOnEdge( edge1, n1, n2, data ))
- //continue;
- edge1->SetDataByNeighbors( n1, n2, helper );
- gp_Vec dirInFace;
- if ( edge1->_cosin < 0 )
- dirInFace = dir1;
else
- getFaceDir( FF1[0], E1, edge1->_nodes[0], helper, ok );
- double angle = dir1.Angle( edge1->_normal ); // [0,PI]
- edge1->SetCosin( cos( angle ));
+ {
+ newEdge._cosin = edge1->_cosin;
+ }
- // limit data._stepSize
- if ( edge1->_cosin > 0.1 )
+ // find shapes that need smoothing due to change of _normal
+ if ( edge1->_cosin < theMinSmoothCosin &&
+ newEdge._cosin > theMinSmoothCosin )
{
- SMDS_ElemIteratorPtr fIt = edge1->_nodes[0]->GetInverseElementIterator(SMDSAbs_Face);
- while ( fIt->more() )
- limitStepSize( data, fIt->next(), edge1->_cosin );
+ if ( edge1->_sWOL.IsNull() )
+ {
+ SMDS_ElemIteratorPtr fIt = edge1->_nodes[0]->GetInverseElementIterator(SMDSAbs_Face);
+ while ( fIt->more() )
+ shapesToSmooth.insert( fIt->next()->getshapeId() );
+ //limitStepSize( data, fIt->next(), edge1->_cosin ); // too late
+ }
+ else // edge1 inflates along a FACE
+ {
+ TopoDS_Shape V = helper.GetSubShapeByNode( edge1->_nodes[0], getMeshDS() );
+ PShapeIteratorPtr eIt = helper.GetAncestors( V, *_mesh, TopAbs_EDGE );
+ while ( const TopoDS_Shape* E = eIt->next() )
+ {
+ if ( !helper.IsSubShape( *E, /*FACE=*/edge1->_sWOL ))
+ continue;
+ gp_Vec edgeDir = getEdgeDir( TopoDS::Edge( *E ), TopoDS::Vertex( V ));
+ double angle = edgeDir.Angle( newEdge._normal ); // [0,PI]
+ if ( angle < M_PI / 2 )
+ shapesToSmooth.insert( getMeshDS()->ShapeToIndex( *E ));
+ }
+ }
}
- // set new XYZ of target node
+ }
+
+ data.AddShapesToSmooth( shapesToSmooth );
+
+ // Update data of edges depending on a new _normal
+
+ for ( size_t iE = 0; iE < edge2newEdge.size(); ++iE )
+ {
+ _LayerEdge* edge1 = edge2newEdge[ iE ].first;
+ _LayerEdge& newEdge = edge2newEdge[ iE ].second;
+ if ( !edge1 ) continue;
+
+ edge1->_normal = newEdge._normal;
+ edge1->SetCosin( newEdge._cosin );
edge1->InvalidateStep( 1 );
edge1->_len = 0;
edge1->SetNewLength( data._stepSize, helper );
- }
+ if ( edge1->IsOnEdge() )
+ {
+ const SMDS_MeshNode * n1 = edge1->_2neibors->srcNode(0);
+ const SMDS_MeshNode * n2 = edge1->_2neibors->srcNode(1);
+ edge1->SetDataByNeighbors( n1, n2, helper );
+ }
- // Update normals and other dependent data of not intersecting _LayerEdge's
- // neighboring the intersecting ones
+ // Update normals and other dependent data of not intersecting _LayerEdge's
+ // neighboring the intersecting ones
- for ( e2ee = edge2CloseEdge.begin(); e2ee != edge2CloseEdge.end(); ++e2ee )
- {
- _LayerEdge* edge1 = e2ee->first;
if ( !edge1->_2neibors )
continue;
for ( int j = 0; j < 2; ++j ) // loop on 2 neighbors
if ( edge2CloseEdge.count ( neighbor ))
continue; // j-th neighbor is also intersected
_LayerEdge* prevEdge = edge1;
- const int nbSteps = 6;
+ const int nbSteps = 10;
for ( int step = nbSteps; step; --step ) // step from edge1 in j-th direction
{
if ( !neighbor->_2neibors )
_LayerEdge* nextEdge = neighbor->_2neibors->_edges[iNext];
if ( nextEdge == prevEdge )
nextEdge = neighbor->_2neibors->_edges[ ++iNext ];
-// const double& wgtPrev = neighbor->_2neibors->_wgt[1-iNext];
-// const double& wgtNext = neighbor->_2neibors->_wgt[iNext];
double r = double(step-1)/nbSteps;
if ( !nextEdge->_2neibors )
r = 0.5;
neighbor->SetCosin( prevEdge->_cosin * r + nextEdge->_cosin * (1-r) );
neighbor->SetDataByNeighbors( prevEdge->_nodes[0], nextEdge->_nodes[0], helper );
- neighbor->InvalidateStep( 1 );
- neighbor->_len = 0;
- neighbor->SetNewLength( data._stepSize, helper );
+ neighbor->InvalidateStep( 1 );
+ neighbor->_len = 0;
+ neighbor->SetNewLength( data._stepSize, helper );
+
+ // goto the next neighbor
+ prevEdge = neighbor;
+ neighbor = nextEdge;
+ }
+ }
+ }
+ dumpFunctionEnd();
+ }
+ // 2) Check absence of intersections
+ // TODO?
+
+ for ( size_t i = 0 ; i < tmpFaces.size(); ++i )
+ delete tmpFaces[i];
+
+ return true;
+}
+
+//================================================================================
+/*!
+ * \brief Modify normals of _LayerEdge's on _ConvexFace's
+ */
+//================================================================================
+
+bool _ViscousBuilder::updateNormalsOfConvexFaces( _SolidData& data,
+ SMESH_MesherHelper& helper,
+ int stepNb )
+{
+ SMESHDS_Mesh* meshDS = helper.GetMeshDS();
+ bool isOK;
+
+ map< TGeomID, _ConvexFace >::iterator id2face = data._convexFaces.begin();
+ for ( ; id2face != data._convexFaces.end(); ++id2face )
+ {
+ _ConvexFace & convFace = (*id2face).second;
+ if ( convFace._normalsFixed )
+ continue; // already fixed
+ if ( convFace.CheckPrisms() )
+ continue; // nothing to fix
+
+ convFace._normalsFixed = true;
+
+ BRepAdaptor_Surface surface ( convFace._face, false );
+ BRepLProp_SLProps surfProp( surface, 2, 1e-6 );
+
+ // check if the convex FACE is of spherical shape
+
+ Bnd_B3d centersBox; // bbox of centers of curvature of _LayerEdge's on VERTEXes
+ Bnd_B3d nodesBox;
+ gp_Pnt center;
+ int iBeg, iEnd;
+
+ map< TGeomID, int >::iterator id2end = convFace._subIdToEdgeEnd.begin();
+ for ( ; id2end != convFace._subIdToEdgeEnd.end(); ++id2end )
+ {
+ data.GetEdgesOnShape( id2end->second, iBeg, iEnd );
+
+ if ( meshDS->IndexToShape( id2end->first ).ShapeType() == TopAbs_VERTEX )
+ {
+ _LayerEdge* ledge = data._edges[ iBeg ];
+ if ( convFace.GetCenterOfCurvature( ledge, surfProp, helper, center ))
+ centersBox.Add( center );
+ }
+ for ( ; iBeg < iEnd; ++iBeg )
+ nodesBox.Add( SMESH_TNodeXYZ( data._edges[ iBeg ]->_nodes[0] ));
+ }
+ if ( centersBox.IsVoid() )
+ {
+ debugMsg( "Error: centersBox.IsVoid()" );
+ return false;
+ }
+ const bool isSpherical =
+ ( centersBox.SquareExtent() < 1e-6 * nodesBox.SquareExtent() );
+
+ int nbEdges = helper.Count( convFace._face, TopAbs_EDGE, /*ignoreSame=*/false );
+ vector < _CentralCurveOnEdge > centerCurves( nbEdges );
+
+ if ( isSpherical )
+ {
+ // set _LayerEdge::_normal as average of all normals
+
+ // WARNING: different density of nodes on EDGEs is not taken into account that
+ // can lead to an improper new normal
+
+ gp_XYZ avgNormal( 0,0,0 );
+ nbEdges = 0;
+ id2end = convFace._subIdToEdgeEnd.begin();
+ for ( ; id2end != convFace._subIdToEdgeEnd.end(); ++id2end )
+ {
+ data.GetEdgesOnShape( id2end->second, iBeg, iEnd );
+ // set data of _CentralCurveOnEdge
+ const TopoDS_Shape& S = meshDS->IndexToShape( id2end->first );
+ if ( S.ShapeType() == TopAbs_EDGE )
+ {
+ _CentralCurveOnEdge& ceCurve = centerCurves[ nbEdges++ ];
+ ceCurve.SetShapes( TopoDS::Edge(S), convFace, data, helper );
+ if ( !data._edges[ iBeg ]->_sWOL.IsNull() )
+ ceCurve._adjFace.Nullify();
+ else
+ ceCurve._ledges.insert( ceCurve._ledges.end(),
+ &data._edges[ iBeg ], &data._edges[ iEnd ]);
+ }
+ // summarize normals
+ for ( ; iBeg < iEnd; ++iBeg )
+ avgNormal += data._edges[ iBeg ]->_normal;
+ }
+ double normSize = avgNormal.SquareModulus();
+ if ( normSize < 1e-200 )
+ {
+ debugMsg( "updateNormalsOfConvexFaces(): zero avgNormal" );
+ return false;
+ }
+ avgNormal /= Sqrt( normSize );
+
+ // compute new _LayerEdge::_cosin on EDGEs
+ double avgCosin = 0;
+ int nbCosin = 0;
+ gp_Vec inFaceDir;
+ for ( size_t iE = 0; iE < centerCurves.size(); ++iE )
+ {
+ _CentralCurveOnEdge& ceCurve = centerCurves[ iE ];
+ if ( ceCurve._adjFace.IsNull() )
+ continue;
+ for ( size_t iLE = 0; iLE < ceCurve._ledges.size(); ++iLE )
+ {
+ const SMDS_MeshNode* node = ceCurve._ledges[ iLE ]->_nodes[0];
+ inFaceDir = getFaceDir( ceCurve._adjFace, ceCurve._edge, node, helper, isOK );
+ if ( isOK )
+ {
+ double angle = inFaceDir.Angle( avgNormal ); // [0,PI]
+ ceCurve._ledges[ iLE ]->_cosin = Cos( angle );
+ avgCosin += ceCurve._ledges[ iLE ]->_cosin;
+ nbCosin++;
+ }
+ }
+ }
+ if ( nbCosin > 0 )
+ avgCosin /= nbCosin;
+
+ // set _LayerEdge::_normal = avgNormal
+ id2end = convFace._subIdToEdgeEnd.begin();
+ for ( ; id2end != convFace._subIdToEdgeEnd.end(); ++id2end )
+ {
+ data.GetEdgesOnShape( id2end->second, iBeg, iEnd );
+ const TopoDS_Shape& S = meshDS->IndexToShape( id2end->first );
+ if ( S.ShapeType() != TopAbs_EDGE )
+ for ( int i = iBeg; i < iEnd; ++i )
+ data._edges[ i ]->_cosin = avgCosin;
+
+ for ( ; iBeg < iEnd; ++iBeg )
+ data._edges[ iBeg ]->_normal = avgNormal;
+ }
+ }
+ else // if ( isSpherical )
+ {
+ // We suppose that centers of curvature at all points of the FACE
+ // lie on some curve, let's call it "central curve". For all _LayerEdge's
+ // having a common center of curvature we define the same new normal
+ // as a sum of normals of _LayerEdge's on EDGEs among them.
+
+ // get all centers of curvature for each EDGE
+
+ helper.SetSubShape( convFace._face );
+ _LayerEdge* vertexLEdges[2], **edgeLEdge, **edgeLEdgeEnd;
+
+ TopExp_Explorer edgeExp( convFace._face, TopAbs_EDGE );
+ for ( int iE = 0; edgeExp.More(); edgeExp.Next(), ++iE )
+ {
+ const TopoDS_Edge& edge = TopoDS::Edge( edgeExp.Current() );
+
+ // set adjacent FACE
+ centerCurves[ iE ].SetShapes( edge, convFace, data, helper );
+
+ // get _LayerEdge's of the EDGE
+ TGeomID edgeID = meshDS->ShapeToIndex( edge );
+ id2end = convFace._subIdToEdgeEnd.find( edgeID );
+ if ( id2end == convFace._subIdToEdgeEnd.end() )
+ {
+ // no _LayerEdge's on EDGE, use _LayerEdge's on VERTEXes
+ for ( int iV = 0; iV < 2; ++iV )
+ {
+ TopoDS_Vertex v = helper.IthVertex( iV, edge );
+ TGeomID vID = meshDS->ShapeToIndex( v );
+ int end = convFace._subIdToEdgeEnd[ vID ];
+ int iBeg = end > 0 ? data._endEdgeOnShape[ end-1 ] : 0;
+ vertexLEdges[ iV ] = data._edges[ iBeg ];
+ }
+ edgeLEdge = &vertexLEdges[0];
+ edgeLEdgeEnd = edgeLEdge + 2;
+
+ centerCurves[ iE ]._adjFace.Nullify();
+ }
+ else
+ {
+ data.GetEdgesOnShape( id2end->second, iBeg, iEnd );
+ if ( id2end->second >= data._nbShapesToSmooth )
+ data.SortOnEdge( edge, iBeg, iEnd, helper );
+ edgeLEdge = &data._edges[ iBeg ];
+ edgeLEdgeEnd = edgeLEdge + iEnd - iBeg;
+ vertexLEdges[0] = data._edges[ iBeg ]->_2neibors->_edges[0];
+ vertexLEdges[1] = data._edges[ iEnd-1 ]->_2neibors->_edges[1];
+
+ if ( ! data._edges[ iBeg ]->_sWOL.IsNull() )
+ centerCurves[ iE ]._adjFace.Nullify();
+ }
+
+ // Get curvature centers
+
+ centersBox.Clear();
+
+ if ( edgeLEdge[0]->IsOnEdge() &&
+ convFace.GetCenterOfCurvature( vertexLEdges[0], surfProp, helper, center ))
+ { // 1st VERTEX
+ centerCurves[ iE ].Append( center, vertexLEdges[0] );
+ centersBox.Add( center );
+ }
+ for ( ; edgeLEdge < edgeLEdgeEnd; ++edgeLEdge )
+ if ( convFace.GetCenterOfCurvature( *edgeLEdge, surfProp, helper, center ))
+ { // EDGE or VERTEXes
+ centerCurves[ iE ].Append( center, *edgeLEdge );
+ centersBox.Add( center );
+ }
+ if ( edgeLEdge[-1]->IsOnEdge() &&
+ convFace.GetCenterOfCurvature( vertexLEdges[1], surfProp, helper, center ))
+ { // 2nd VERTEX
+ centerCurves[ iE ].Append( center, vertexLEdges[1] );
+ centersBox.Add( center );
+ }
+ centerCurves[ iE ]._isDegenerated =
+ ( centersBox.IsVoid() || centersBox.SquareExtent() < 1e-6 * nodesBox.SquareExtent() );
+
+ } // loop on EDGES of convFace._face to set up data of centerCurves
+
+ // Compute new normals for _LayerEdge's on EDGEs
+
+ double avgCosin = 0;
+ int nbCosin = 0;
+ gp_Vec inFaceDir;
+ for ( size_t iE1 = 0; iE1 < centerCurves.size(); ++iE1 )
+ {
+ _CentralCurveOnEdge& ceCurve = centerCurves[ iE1 ];
+ if ( ceCurve._isDegenerated )
+ continue;
+ const vector< gp_Pnt >& centers = ceCurve._curvaCenters;
+ vector< gp_XYZ > & newNormals = ceCurve._normals;
+ for ( size_t iC1 = 0; iC1 < centers.size(); ++iC1 )
+ {
+ isOK = false;
+ for ( size_t iE2 = 0; iE2 < centerCurves.size() && !isOK; ++iE2 )
+ {
+ if ( iE1 != iE2 )
+ isOK = centerCurves[ iE2 ].FindNewNormal( centers[ iC1 ], newNormals[ iC1 ]);
+ }
+ if ( isOK && !ceCurve._adjFace.IsNull() )
+ {
+ // compute new _LayerEdge::_cosin
+ const SMDS_MeshNode* node = ceCurve._ledges[ iC1 ]->_nodes[0];
+ inFaceDir = getFaceDir( ceCurve._adjFace, ceCurve._edge, node, helper, isOK );
+ if ( isOK )
+ {
+ double angle = inFaceDir.Angle( newNormals[ iC1 ] ); // [0,PI]
+ ceCurve._ledges[ iC1 ]->_cosin = Cos( angle );
+ avgCosin += ceCurve._ledges[ iC1 ]->_cosin;
+ nbCosin++;
+ }
+ }
+ }
+ }
+ // set new normals to _LayerEdge's of NOT degenerated central curves
+ for ( size_t iE = 0; iE < centerCurves.size(); ++iE )
+ {
+ if ( centerCurves[ iE ]._isDegenerated )
+ continue;
+ for ( size_t iLE = 0; iLE < centerCurves[ iE ]._ledges.size(); ++iLE )
+ centerCurves[ iE ]._ledges[ iLE ]->_normal = centerCurves[ iE ]._normals[ iLE ];
+ }
+ // set new normals to _LayerEdge's of degenerated central curves
+ for ( size_t iE = 0; iE < centerCurves.size(); ++iE )
+ {
+ if ( !centerCurves[ iE ]._isDegenerated ||
+ centerCurves[ iE ]._ledges.size() < 3 )
+ continue;
+ // new normal is an average of new normals at VERTEXes that
+ // was computed on non-degenerated _CentralCurveOnEdge's
+ gp_XYZ newNorm = ( centerCurves[ iE ]._ledges.front()->_normal +
+ centerCurves[ iE ]._ledges.back ()->_normal );
+ double sz = newNorm.Modulus();
+ if ( sz < 1e-200 )
+ continue;
+ newNorm /= sz;
+ double newCosin = ( 0.5 * centerCurves[ iE ]._ledges.front()->_cosin +
+ 0.5 * centerCurves[ iE ]._ledges.back ()->_cosin );
+ for ( size_t iLE = 1, nb = centerCurves[ iE ]._ledges.size() - 1; iLE < nb; ++iLE )
+ {
+ centerCurves[ iE ]._ledges[ iLE ]->_normal = newNorm;
+ centerCurves[ iE ]._ledges[ iLE ]->_cosin = newCosin;
+ }
+ }
+
+ // Find new normals for _LayerEdge's based on FACE
+
+ if ( nbCosin > 0 )
+ avgCosin /= nbCosin;
+ const TGeomID faceID = meshDS->ShapeToIndex( convFace._face );
+ map< TGeomID, int >::iterator id2end = convFace._subIdToEdgeEnd.find( faceID );
+ if ( id2end != convFace._subIdToEdgeEnd.end() )
+ {
+ int iE = 0;
+ gp_XYZ newNorm;
+ data.GetEdgesOnShape( id2end->second, iBeg, iEnd );
+ for ( ; iBeg < iEnd; ++iBeg )
+ {
+ _LayerEdge* ledge = data._edges[ iBeg ];
+ if ( !convFace.GetCenterOfCurvature( ledge, surfProp, helper, center ))
+ continue;
+ for ( size_t i = 0; i < centerCurves.size(); ++i, ++iE )
+ {
+ iE = iE % centerCurves.size();
+ if ( centerCurves[ iE ]._isDegenerated )
+ continue;
+ newNorm.SetCoord( 0,0,0 );
+ if ( centerCurves[ iE ].FindNewNormal( center, newNorm ))
+ {
+ ledge->_normal = newNorm;
+ ledge->_cosin = avgCosin;
+ break;
+ }
+ }
+ }
+ }
+
+ } // not a quasi-spherical FACE
+
+ // Update _LayerEdge's data according to a new normal
+
+ dumpFunction(SMESH_Comment("updateNormalsOfConvexFaces")<<data._index
+ <<"_F"<<meshDS->ShapeToIndex( convFace._face ));
+
+ id2end = convFace._subIdToEdgeEnd.begin();
+ for ( ; id2end != convFace._subIdToEdgeEnd.end(); ++id2end )
+ {
+ data.GetEdgesOnShape( id2end->second, iBeg, iEnd );
+ for ( ; iBeg < iEnd; ++iBeg )
+ {
+ _LayerEdge* & ledge = data._edges[ iBeg ];
+ double len = ledge->_len;
+ ledge->InvalidateStep( stepNb + 1, /*restoreLength=*/true );
+ ledge->SetCosin( ledge->_cosin );
+ ledge->SetNewLength( len, helper );
+ }
+
+ } // loop on sub-shapes of convFace._face
+
+ // Find FACEs adjacent to convFace._face that got necessity to smooth
+ // as a result of normals modification
+
+ set< TGeomID > adjFacesToSmooth;
+ for ( size_t iE = 0; iE < centerCurves.size(); ++iE )
+ {
+ if ( centerCurves[ iE ]._adjFace.IsNull() ||
+ centerCurves[ iE ]._adjFaceToSmooth )
+ continue;
+ for ( size_t iLE = 0; iLE < centerCurves[ iE ]._ledges.size(); ++iLE )
+ {
+ if ( centerCurves[ iE ]._ledges[ iLE ]->_cosin > theMinSmoothCosin )
+ {
+ adjFacesToSmooth.insert( meshDS->ShapeToIndex( centerCurves[ iE ]._adjFace ));
+ break;
+ }
+ }
+ }
+ data.AddShapesToSmooth( adjFacesToSmooth );
+
+ dumpFunctionEnd();
+
+
+ } // loop on data._convexFaces
+
+ return true;
+}
+
+//================================================================================
+/*!
+ * \brief Finds a center of curvature of a surface at a _LayerEdge
+ */
+//================================================================================
+
+bool _ConvexFace::GetCenterOfCurvature( _LayerEdge* ledge,
+ BRepLProp_SLProps& surfProp,
+ SMESH_MesherHelper& helper,
+ gp_Pnt & center ) const
+{
+ gp_XY uv = helper.GetNodeUV( _face, ledge->_nodes[0] );
+ surfProp.SetParameters( uv.X(), uv.Y() );
+ if ( !surfProp.IsCurvatureDefined() )
+ return false;
+
+ const double oriFactor = ( _face.Orientation() == TopAbs_REVERSED ? +1. : -1. );
+ double surfCurvatureMax = surfProp.MaxCurvature() * oriFactor;
+ double surfCurvatureMin = surfProp.MinCurvature() * oriFactor;
+ if ( surfCurvatureMin > surfCurvatureMax )
+ center = surfProp.Value().Translated( surfProp.Normal().XYZ() / surfCurvatureMin * oriFactor );
+ else
+ center = surfProp.Value().Translated( surfProp.Normal().XYZ() / surfCurvatureMax * oriFactor );
+
+ return true;
+}
+
+//================================================================================
+/*!
+ * \brief Check that prisms are not distorted
+ */
+//================================================================================
+
+bool _ConvexFace::CheckPrisms() const
+{
+ for ( size_t i = 0; i < _simplexTestEdges.size(); ++i )
+ {
+ const _LayerEdge* edge = _simplexTestEdges[i];
+ SMESH_TNodeXYZ tgtXYZ( edge->_nodes.back() );
+ for ( size_t j = 0; j < edge->_simplices.size(); ++j )
+ if ( !edge->_simplices[j].IsForward( edge->_nodes[0], &tgtXYZ ))
+ {
+ debugMsg( "Bad simplex of _simplexTestEdges ("
+ << " "<< edge->_nodes[0]->GetID()<< " "<< tgtXYZ._node->GetID()
+ << " "<< edge->_simplices[j]._nPrev->GetID()
+ << " "<< edge->_simplices[j]._nNext->GetID() << " )" );
+ return false;
+ }
+ }
+ return true;
+}
+
+//================================================================================
+/*!
+ * \brief Try to compute a new normal by interpolating normals of _LayerEdge's
+ * stored in this _CentralCurveOnEdge.
+ * \param [in] center - curvature center of a point of another _CentralCurveOnEdge.
+ * \param [in,out] newNormal - current normal at this point, to be redefined
+ * \return bool - true if succeeded.
+ */
+//================================================================================
+
+bool _CentralCurveOnEdge::FindNewNormal( const gp_Pnt& center, gp_XYZ& newNormal )
+{
+ if ( this->_isDegenerated )
+ return false;
+
+ // find two centers the given one lies between
+
+ for ( size_t i = 0, nb = _curvaCenters.size()-1; i < nb; ++i )
+ {
+ double sl2 = 1.001 * _segLength2[ i ];
+
+ double d1 = center.SquareDistance( _curvaCenters[ i ]);
+ if ( d1 > sl2 )
+ continue;
+
+ double d2 = center.SquareDistance( _curvaCenters[ i+1 ]);
+ if ( d2 > sl2 || d2 + d1 < 1e-100 )
+ continue;
+
+ d1 = Sqrt( d1 );
+ d2 = Sqrt( d2 );
+ double r = d1 / ( d1 + d2 );
+ gp_XYZ norm = (( 1. - r ) * _ledges[ i ]->_normal +
+ ( r ) * _ledges[ i+1 ]->_normal );
+ norm.Normalize();
- // goto the next neighbor
- prevEdge = neighbor;
- neighbor = nextEdge;
- }
- }
- }
- dumpFunctionEnd();
+ newNormal += norm;
+ double sz = newNormal.Modulus();
+ if ( sz < 1e-200 )
+ break;
+ newNormal /= sz;
+ return true;
}
- // 2) Check absence of intersections
- // TODO?
+ return false;
+}
- for ( unsigned i = 0 ; i < tmpFaces.size(); ++i )
- delete tmpFaces[i];
+//================================================================================
+/*!
+ * \brief Set shape members
+ */
+//================================================================================
- return true;
+void _CentralCurveOnEdge::SetShapes( const TopoDS_Edge& edge,
+ const _ConvexFace& convFace,
+ const _SolidData& data,
+ SMESH_MesherHelper& helper)
+{
+ _edge = edge;
+
+ PShapeIteratorPtr fIt = helper.GetAncestors( edge, *helper.GetMesh(), TopAbs_FACE );
+ while ( const TopoDS_Shape* F = fIt->next())
+ if ( !convFace._face.IsSame( *F ))
+ {
+ _adjFace = TopoDS::Face( *F );
+ _adjFaceToSmooth = false;
+ // _adjFace already in a smoothing queue ?
+ size_t end;
+ TGeomID adjFaceID = helper.GetMeshDS()->ShapeToIndex( *F );
+ if ( data.GetShapeEdges( adjFaceID, end ))
+ _adjFaceToSmooth = ( end < data._nbShapesToSmooth );
+ break;
+ }
}
//================================================================================
bool segmentIntersected = false;
distance = Precision::Infinite();
int iFace = -1; // intersected face
- for ( unsigned j = 0 ; j < suspectFaces.size() && !segmentIntersected; ++j )
+ for ( size_t j = 0 ; j < suspectFaces.size() /*&& !segmentIntersected*/; ++j )
{
const SMDS_MeshElement* face = suspectFaces[j];
if ( face->GetNodeIndex( _nodes.back() ) >= 0 ||
{
const SMDS_MeshNode* tria[3];
tria[0] = *nIt++;
- tria[1] = *nIt++;;
+ tria[1] = *nIt++;
for ( int n2 = 2; n2 < nbNodes && !intFound; ++n2 )
{
tria[2] = *nIt++;
}
if ( intFound )
{
- if ( dist < segLen*(1.01) && dist > -(_len-segLen) )
+ if ( dist < segLen*(1.01) && dist > -(_len*_lenFactor-segLen) )
segmentIntersected = true;
if ( distance > dist )
distance = dist, iFace = j;
}
}
if ( iFace != -1 && face ) *face = suspectFaces[iFace];
-// if ( distance && iFace > -1 )
-// {
-// // distance is used to limit size of inflation step which depends on
-// // whether the intersected face bears viscous layers or not
-// bool faceHasVL = suspectFaces[iFace]->GetID() < 1;
-// if ( faceHasVL )
-// *distance /= 2;
-// }
+
if ( segmentIntersected )
{
#ifdef __myDEBUG
return segDir;
}
+//================================================================================
+/*!
+ * \brief Return the last position of the target node on a FACE.
+ * \param [in] F - the FACE this _LayerEdge is inflated along
+ * \return gp_XY - result UV
+ */
+//================================================================================
+
+gp_XY _LayerEdge::LastUV( const TopoDS_Face& F ) const
+{
+ if ( F.IsSame( _sWOL )) // F is my FACE
+ return gp_XY( _pos.back().X(), _pos.back().Y() );
+
+ if ( _sWOL.IsNull() || _sWOL.ShapeType() != TopAbs_EDGE ) // wrong call
+ return gp_XY( 1e100, 1e100 );
+
+ // _sWOL is EDGE of F; _pos.back().X() is the last U on the EDGE
+ double f, l, u = _pos.back().X();
+ Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface( TopoDS::Edge(_sWOL), F, f,l);
+ if ( !C2d.IsNull() && f <= u && u <= l )
+ return C2d->Value( u ).XY();
+
+ return gp_XY( 1e100, 1e100 );
+}
+
//================================================================================
/*!
* \brief Test intersection of the last segment with a given triangle
/* calculate distance from vert0 to ray origin */
gp_XYZ tvec = orig - vert0;
- if ( tvec * dir > EPSILON )
+ //if ( tvec * dir > EPSILON )
// intersected face is at back side of the temporary face this _LayerEdge belongs to
- return false;
+ //return false;
gp_XYZ edge1 = vert1 - vert0;
gp_XYZ edge2 = vert2 - vert0;
double det = edge1 * pvec;
if (det > -EPSILON && det < EPSILON)
- return 0;
+ return false;
double inv_det = 1.0 / det;
/* calculate U parameter and test bounds */
double u = ( tvec * pvec ) * inv_det;
- if (u < 0.0 || u > 1.0)
- return 0;
+ //if (u < 0.0 || u > 1.0)
+ if (u < -EPSILON || u > 1.0 + EPSILON)
+ return false;
/* prepare to test V parameter */
gp_XYZ qvec = tvec ^ edge1;
/* calculate V parameter and test bounds */
double v = (dir * qvec) * inv_det;
- if ( v < 0.0 || u + v > 1.0 )
- return 0;
+ //if ( v < 0.0 || u + v > 1.0 )
+ if ( v < -EPSILON || u + v > 1.0 + EPSILON)
+ return false;
/* calculate t, ray intersects triangle */
t = (edge2 * qvec) * inv_det;
- // if (det < EPSILON)
- // return false;
-
- // /* calculate distance from vert0 to ray origin */
- // gp_XYZ tvec = orig - vert0;
-
- // /* calculate U parameter and test bounds */
- // double u = tvec * pvec;
- // if (u < 0.0 || u > det)
-// return 0;
-
-// /* prepare to test V parameter */
-// gp_XYZ qvec = tvec ^ edge1;
-
-// /* calculate V parameter and test bounds */
-// double v = dir * qvec;
-// if (v < 0.0 || u + v > det)
-// return 0;
-
-// /* calculate t, scale parameters, ray intersects triangle */
-// double t = edge2 * qvec;
-// double inv_det = 1.0 / det;
-// t *= inv_det;
-// //u *= inv_det;
-// //v *= inv_det;
-
- return true;
+ //return true;
+ return t > 0.;
}
//================================================================================
SMESH_TNodeXYZ oldPos( tgtNode );
double dist01, distNewOld;
- SMESH_TNodeXYZ p0( _2neibors->_nodes[0]);
- SMESH_TNodeXYZ p1( _2neibors->_nodes[1]);
- dist01 = p0.Distance( _2neibors->_nodes[1] );
+ SMESH_TNodeXYZ p0( _2neibors->tgtNode(0));
+ SMESH_TNodeXYZ p1( _2neibors->tgtNode(1));
+ dist01 = p0.Distance( _2neibors->tgtNode(1) );
gp_Pnt newPos = p0 * _2neibors->_wgt[0] + p1 * _2neibors->_wgt[1];
double lenDelta = 0;
// compute new position for the last _pos
gp_XYZ newPos (0,0,0);
- for ( unsigned i = 0; i < _simplices.size(); ++i )
+ for ( size_t i = 0; i < _simplices.size(); ++i )
newPos += SMESH_TNodeXYZ( _simplices[i]._nPrev );
newPos /= _simplices.size();
+ const gp_XYZ& curPos ( _pos.back() );
+ const gp_Pnt prevPos( _pos[ _pos.size()-2 ]);
if ( _curvature )
- newPos += _normal * _curvature->lenDelta( _len );
-
- gp_Pnt prevPos( _pos[ _pos.size()-2 ]);
-// if ( _cosin < -0.1)
-// {
-// // Avoid decreasing length of edge on concave surface
-// //gp_Vec oldMove( _pos[ _pos.size()-2 ], _pos.back() );
-// gp_Vec newMove( prevPos, newPos );
-// newPos = _pos.back() + newMove.XYZ();
-// }
-// else if ( _cosin > 0.3 )
-// {
-// // Avoid increasing length of edge too much
-
-// }
+ {
+ double delta = _curvature->lenDelta( _len );
+ if ( delta > 0 )
+ newPos += _normal * delta;
+ else
+ {
+ double segLen = _normal * ( newPos - prevPos.XYZ() );
+ if ( segLen + delta > 0 )
+ newPos += _normal * delta;
+ }
+ // double segLenChange = _normal * ( curPos - newPos );
+ // newPos += 0.5 * _normal * segLenChange;
+ }
+
// count quality metrics (orientation) of tetras around _tgtNode
int nbOkBefore = 0;
- SMESH_TNodeXYZ tgtXYZ( _nodes.back() );
- for ( unsigned i = 0; i < _simplices.size(); ++i )
- nbOkBefore += _simplices[i].IsForward( _nodes[0], &tgtXYZ );
+ for ( size_t i = 0; i < _simplices.size(); ++i )
+ nbOkBefore += _simplices[i].IsForward( _nodes[0], &curPos );
int nbOkAfter = 0;
- for ( unsigned i = 0; i < _simplices.size(); ++i )
+ for ( size_t i = 0; i < _simplices.size(); ++i )
nbOkAfter += _simplices[i].IsForward( _nodes[0], &newPos );
if ( nbOkAfter < nbOkBefore )
double u = Precision::Infinite(); // to force projection w/o distance check
helper.CheckNodeU( TopoDS::Edge( _sWOL ), n, u, 1e-10, /*force=*/true, distXYZ );
_pos.back().SetCoord( u, 0, 0 );
- SMDS_EdgePosition* pos = static_cast<SMDS_EdgePosition*>( n->GetPosition() );
- pos->SetUParameter( u );
+ if ( _nodes.size() > 1 )
+ {
+ SMDS_EdgePosition* pos = static_cast<SMDS_EdgePosition*>( n->GetPosition() );
+ pos->SetUParameter( u );
+ }
}
else // TopAbs_FACE
{
gp_XY uv( Precision::Infinite(), 0 );
helper.CheckNodeUV( TopoDS::Face( _sWOL ), n, uv, 1e-10, /*force=*/true, distXYZ );
_pos.back().SetCoord( uv.X(), uv.Y(), 0 );
- SMDS_FacePosition* pos = static_cast<SMDS_FacePosition*>( n->GetPosition() );
- pos->SetUParameter( uv.X() );
- pos->SetVParameter( uv.Y() );
+ if ( _nodes.size() > 1 )
+ {
+ SMDS_FacePosition* pos = static_cast<SMDS_FacePosition*>( n->GetPosition() );
+ pos->SetUParameter( uv.X() );
+ pos->SetVParameter( uv.Y() );
+ }
}
n->setXYZ( distXYZ[1], distXYZ[2], distXYZ[3]);
}
*/
//================================================================================
-void _LayerEdge::InvalidateStep( int curStep )
+void _LayerEdge::InvalidateStep( int curStep, bool restoreLength )
{
if ( _pos.size() > curStep )
{
+ if ( restoreLength )
+ _len -= ( _pos[ curStep-1 ] - _pos.back() ).Modulus();
+
_pos.resize( curStep );
gp_Pnt nXYZ = _pos.back();
SMDS_MeshNode* n = const_cast< SMDS_MeshNode*>( _nodes.back() );
Handle(Geom_Surface) surface;
TopoDS_Edge geomEdge;
TopoDS_Face geomFace;
+ TopoDS_Shape prevSWOL;
TopLoc_Location loc;
- double f,l, u/*, distXYZ[4]*/;
+ double f,l, u;
gp_XY uv;
bool isOnEdge;
+ TGeomID prevBaseId = -1;
+ TNode2Edge* n2eMap = 0;
+ TNode2Edge::iterator n2e;
+
+ // Create intermediate nodes on each _LayerEdge
- for ( unsigned i = 0; i < data._edges.size(); ++i )
+ for ( size_t i = 0; i < data._edges.size(); ++i )
{
_LayerEdge& edge = *data._edges[i];
+ if ( edge._nodes.size() < 2 )
+ continue; // on _noShrinkShapes
+
// get accumulated length of segments
vector< double > segLen( edge._pos.size() );
segLen[0] = 0.0;
- for ( unsigned j = 1; j < edge._pos.size(); ++j )
+ for ( size_t j = 1; j < edge._pos.size(); ++j )
segLen[j] = segLen[j-1] + (edge._pos[j-1] - edge._pos[j] ).Modulus();
// allocate memory for new nodes if it is not yet refined
edge._nodes[1] = 0;
edge._nodes.back() = tgtNode;
}
- if ( !edge._sWOL.IsNull() )
+ // get data of a shrink shape
+ if ( !edge._sWOL.IsNull() && edge._sWOL != prevSWOL )
{
isOnEdge = ( edge._sWOL.ShapeType() == TopAbs_EDGE );
- // restore position of the last node
-// gp_Pnt p;
if ( isOnEdge )
{
geomEdge = TopoDS::Edge( edge._sWOL );
- curve = BRep_Tool::Curve( geomEdge, loc, f,l);
-// double u = helper.GetNodeU( tgtNode );
-// p = curve->Value( u );
+ curve = BRep_Tool::Curve( geomEdge, loc, f,l);
}
else
{
geomFace = TopoDS::Face( edge._sWOL );
- surface = BRep_Tool::Surface( geomFace, loc );
-// gp_XY uv = helper.GetNodeUV( tgtNode );
-// p = surface->Value( uv.X(), uv.Y() );
+ surface = BRep_Tool::Surface( geomFace, loc );
+ }
+ prevSWOL = edge._sWOL;
+ }
+ // restore shapePos of the last node by already treated _LayerEdge of another _SolidData
+ const TGeomID baseShapeId = edge._nodes[0]->getshapeId();
+ if ( baseShapeId != prevBaseId )
+ {
+ map< TGeomID, TNode2Edge* >::iterator s2ne = data._s2neMap.find( baseShapeId );
+ n2eMap = ( s2ne == data._s2neMap.end() ) ? 0 : n2eMap = s2ne->second;
+ prevBaseId = baseShapeId;
+ }
+ _LayerEdge* edgeOnSameNode = 0;
+ if ( n2eMap && (( n2e = n2eMap->find( edge._nodes[0] )) != n2eMap->end() ))
+ {
+ edgeOnSameNode = n2e->second;
+ const gp_XYZ& otherTgtPos = edgeOnSameNode->_pos.back();
+ SMDS_PositionPtr lastPos = tgtNode->GetPosition();
+ if ( isOnEdge )
+ {
+ SMDS_EdgePosition* epos = static_cast<SMDS_EdgePosition*>( lastPos );
+ epos->SetUParameter( otherTgtPos.X() );
+ }
+ else
+ {
+ SMDS_FacePosition* fpos = static_cast<SMDS_FacePosition*>( lastPos );
+ fpos->SetUParameter( otherTgtPos.X() );
+ fpos->SetVParameter( otherTgtPos.Y() );
}
-// p.Transform( loc );
-// const_cast< SMDS_MeshNode* >( tgtNode )->setXYZ( p.X(), p.Y(), p.Z() );
}
// calculate height of the first layer
double h0;
// create intermediate nodes
double hSum = 0, hi = h0/f;
- unsigned iSeg = 1;
- for ( unsigned iStep = 1; iStep < edge._nodes.size(); ++iStep )
+ size_t iSeg = 1;
+ for ( size_t iStep = 1; iStep < edge._nodes.size(); ++iStep )
{
// compute an intermediate position
hi *= f;
double r = ( segLen[iSeg] - hSum ) / ( segLen[iSeg] - segLen[iPrevSeg] );
gp_Pnt pos = r * edge._pos[iPrevSeg] + (1-r) * edge._pos[iSeg];
- SMDS_MeshNode*& node = const_cast< SMDS_MeshNode*& >(edge._nodes[ iStep ]);
+ SMDS_MeshNode*& node = const_cast< SMDS_MeshNode*& >( edge._nodes[ iStep ]);
if ( !edge._sWOL.IsNull() )
{
// compute XYZ by parameters <pos>
if ( isOnEdge )
{
u = pos.X();
- pos = curve->Value( u ).Transformed(loc);
+ if ( !node )
+ pos = curve->Value( u ).Transformed(loc);
}
else
{
uv.SetCoord( pos.X(), pos.Y() );
- pos = surface->Value( pos.X(), pos.Y() ).Transformed(loc);
+ if ( !node )
+ pos = surface->Value( pos.X(), pos.Y() ).Transformed(loc);
}
}
// create or update the node
{
u = 0.5 * ( u + helper.GetNodeU( geomEdge, node ));
pos = curve->Value( u ).Transformed(loc);
+
+ SMDS_EdgePosition* epos = static_cast<SMDS_EdgePosition*>( node->GetPosition() );
+ epos->SetUParameter( u );
}
else
{
uv = 0.5 * ( uv + helper.GetNodeUV( geomFace, node ));
pos = surface->Value( uv.X(), uv.Y()).Transformed(loc);
+
+ SMDS_FacePosition* fpos = static_cast<SMDS_FacePosition*>( node->GetPosition() );
+ fpos->SetUParameter( uv.X() );
+ fpos->SetVParameter( uv.Y() );
}
}
node->setXYZ( pos.X(), pos.Y(), pos.Z() );
}
+ } // loop on edge._nodes
+
+ if ( !edge._sWOL.IsNull() ) // prepare for shrink()
+ {
+ if ( isOnEdge )
+ edge._pos.back().SetCoord( u, 0,0);
+ else
+ edge._pos.back().SetCoord( uv.X(), uv.Y() ,0);
+
+ if ( edgeOnSameNode )
+ edgeOnSameNode->_pos.back() = edge._pos.back();
}
- }
+
+ } // loop on data._edges to create nodes
if ( !getMeshDS()->IsEmbeddedMode() )
// Log node movement
- for ( unsigned i = 0; i < data._edges.size(); ++i )
+ for ( size_t i = 0; i < data._edges.size(); ++i )
{
_LayerEdge& edge = *data._edges[i];
SMESH_TNodeXYZ p ( edge._nodes.back() );
getMeshDS()->MoveNode( p._node, p.X(), p.Y(), p.Z() );
}
- // TODO: make quadratic prisms and polyhedrons(?)
+ // Create volumes
helper.SetElementsOnShape(true);
+ vector< vector<const SMDS_MeshNode*>* > nnVec;
+ set< vector<const SMDS_MeshNode*>* > nnSet;
+ set< int > degenEdgeInd;
+ vector<const SMDS_MeshElement*> degenVols;
+
TopExp_Explorer exp( data._solid, TopAbs_FACE );
for ( ; exp.More(); exp.Next() )
{
- if ( _ignoreShapeIds.count( getMeshDS()->ShapeToIndex( exp.Current() )))
+ if ( data._ignoreFaceIds.count( getMeshDS()->ShapeToIndex( exp.Current() )))
continue;
- SMESHDS_SubMesh* fSubM = getMeshDS()->MeshElements( exp.Current() );
+ SMESHDS_SubMesh* fSubM = getMeshDS()->MeshElements( exp.Current() );
SMDS_ElemIteratorPtr fIt = fSubM->GetElements();
- vector< vector<const SMDS_MeshNode*>* > nnVec;
while ( fIt->more() )
{
const SMDS_MeshElement* face = fIt->next();
- int nbNodes = face->NbCornerNodes();
+ const int nbNodes = face->NbCornerNodes();
nnVec.resize( nbNodes );
- SMDS_ElemIteratorPtr nIt = face->nodesIterator();
+ nnSet.clear();
+ degenEdgeInd.clear();
+ int nbZ = 0;
+ SMDS_NodeIteratorPtr nIt = face->nodeIterator();
for ( int iN = 0; iN < nbNodes; ++iN )
{
- const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nIt->next() );
+ const SMDS_MeshNode* n = nIt->next();
nnVec[ iN ] = & data._n2eMap[ n ]->_nodes;
+ if ( nnVec[ iN ]->size() < 2 )
+ degenEdgeInd.insert( iN );
+ else
+ nbZ = nnVec[ iN ]->size();
+
+ if ( helper.HasDegeneratedEdges() )
+ nnSet.insert( nnVec[ iN ]);
}
+ if ( nbZ == 0 )
+ continue;
+ if ( 0 < nnSet.size() && nnSet.size() < 3 )
+ continue;
- int nbZ = nnVec[0]->size();
switch ( nbNodes )
{
case 3:
- for ( int iZ = 1; iZ < nbZ; ++iZ )
- helper.AddVolume( (*nnVec[0])[iZ-1], (*nnVec[1])[iZ-1], (*nnVec[2])[iZ-1],
- (*nnVec[0])[iZ], (*nnVec[1])[iZ], (*nnVec[2])[iZ]);
+ switch ( degenEdgeInd.size() )
+ {
+ case 0: // PENTA
+ {
+ for ( int iZ = 1; iZ < nbZ; ++iZ )
+ helper.AddVolume( (*nnVec[0])[iZ-1], (*nnVec[1])[iZ-1], (*nnVec[2])[iZ-1],
+ (*nnVec[0])[iZ], (*nnVec[1])[iZ], (*nnVec[2])[iZ]);
+ break;
+ }
+ case 1: // PYRAM
+ {
+ int i2 = *degenEdgeInd.begin();
+ int i0 = helper.WrapIndex( i2 - 1, nbNodes );
+ int i1 = helper.WrapIndex( i2 + 1, nbNodes );
+ for ( int iZ = 1; iZ < nbZ; ++iZ )
+ helper.AddVolume( (*nnVec[i0])[iZ-1], (*nnVec[i1])[iZ-1],
+ (*nnVec[i1])[iZ], (*nnVec[i0])[iZ], (*nnVec[i2])[0]);
+ break;
+ }
+ case 2: // TETRA
+ {
+ int i3 = !degenEdgeInd.count(0) ? 0 : !degenEdgeInd.count(1) ? 1 : 2;
+ for ( int iZ = 1; iZ < nbZ; ++iZ )
+ helper.AddVolume( (*nnVec[0])[iZ-1], (*nnVec[1])[iZ-1], (*nnVec[2])[iZ-1],
+ (*nnVec[i3])[iZ]);
+ break;
+ }
+ }
break;
+
case 4:
- for ( int iZ = 1; iZ < nbZ; ++iZ )
- helper.AddVolume( (*nnVec[0])[iZ-1], (*nnVec[1])[iZ-1],
- (*nnVec[2])[iZ-1], (*nnVec[3])[iZ-1],
- (*nnVec[0])[iZ], (*nnVec[1])[iZ],
- (*nnVec[2])[iZ], (*nnVec[3])[iZ]);
+ switch ( degenEdgeInd.size() )
+ {
+ case 0: // HEX
+ {
+ for ( int iZ = 1; iZ < nbZ; ++iZ )
+ helper.AddVolume( (*nnVec[0])[iZ-1], (*nnVec[1])[iZ-1],
+ (*nnVec[2])[iZ-1], (*nnVec[3])[iZ-1],
+ (*nnVec[0])[iZ], (*nnVec[1])[iZ],
+ (*nnVec[2])[iZ], (*nnVec[3])[iZ]);
+ break;
+ }
+ case 2: // PENTA?
+ {
+ int i2 = *degenEdgeInd.begin();
+ int i3 = *degenEdgeInd.rbegin();
+ bool ok = ( i3 - i2 == 1 );
+ if ( i2 == 0 && i3 == 3 ) { i2 = 3; i3 = 0; ok = true; }
+ int i0 = helper.WrapIndex( i3 + 1, nbNodes );
+ int i1 = helper.WrapIndex( i0 + 1, nbNodes );
+ for ( int iZ = 1; iZ < nbZ; ++iZ )
+ {
+ const SMDS_MeshElement* vol =
+ helper.AddVolume( (*nnVec[i3])[0], (*nnVec[i0])[iZ], (*nnVec[i0])[iZ-1],
+ (*nnVec[i2])[0], (*nnVec[i1])[iZ], (*nnVec[i1])[iZ-1]);
+ if ( !ok && vol )
+ degenVols.push_back( vol );
+ }
+ break;
+ }
+ case 3: // degen HEX
+ {
+ const SMDS_MeshNode* nn[8];
+ for ( int iZ = 1; iZ < nbZ; ++iZ )
+ {
+ const SMDS_MeshElement* vol =
+ helper.AddVolume( nnVec[0]->size() > 1 ? (*nnVec[0])[iZ-1] : (*nnVec[0])[0],
+ nnVec[1]->size() > 1 ? (*nnVec[1])[iZ-1] : (*nnVec[1])[0],
+ nnVec[2]->size() > 1 ? (*nnVec[2])[iZ-1] : (*nnVec[2])[0],
+ nnVec[3]->size() > 1 ? (*nnVec[3])[iZ-1] : (*nnVec[3])[0],
+ nnVec[0]->size() > 1 ? (*nnVec[0])[iZ] : (*nnVec[0])[0],
+ nnVec[1]->size() > 1 ? (*nnVec[1])[iZ] : (*nnVec[1])[0],
+ nnVec[2]->size() > 1 ? (*nnVec[2])[iZ] : (*nnVec[2])[0],
+ nnVec[3]->size() > 1 ? (*nnVec[3])[iZ] : (*nnVec[3])[0]);
+ degenVols.push_back( vol );
+ }
+ }
+ break;
+ }
break;
+
default:
return error("Not supported type of element", data._index);
- }
+
+ } // switch ( nbNodes )
+ } // while ( fIt->more() )
+ } // loop on FACEs
+
+ if ( !degenVols.empty() )
+ {
+ SMESH_ComputeErrorPtr& err = _mesh->GetSubMesh( data._solid )->GetComputeError();
+ if ( !err || err->IsOK() )
+ {
+ err.reset( new SMESH_ComputeError( COMPERR_WARNING,
+ "Degenerated volumes created" ));
+ err->myBadElements.insert( err->myBadElements.end(),
+ degenVols.begin(),degenVols.end() );
}
}
+
return true;
}
// make map of (ids of FACEs to shrink mesh on) to (_SolidData containing _LayerEdge's
// inflated along FACE or EDGE)
map< TGeomID, _SolidData* > f2sdMap;
- for ( unsigned i = 0 ; i < _sdVec.size(); ++i )
+ for ( size_t i = 0 ; i < _sdVec.size(); ++i )
{
_SolidData& data = _sdVec[i];
TopTools_MapOfShape FFMap;
// EDGE's to shrink
map< TGeomID, _Shrinker1D > e2shrMap;
+ vector< _LayerEdge* > lEdges;
// loop on FACES to srink mesh on
map< TGeomID, _SolidData* >::iterator f2sd = f2sdMap.begin();
for ( ; f2sd != f2sdMap.end(); ++f2sd )
{
- _SolidData& data = *f2sd->second;
- TNode2Edge& n2eMap = data._n2eMap;
- const TopoDS_Face& F = TopoDS::Face( getMeshDS()->IndexToShape( f2sd->first ));
-
- Handle(Geom_Surface) surface = BRep_Tool::Surface(F);
-
+ _SolidData& data = *f2sd->second;
+ const TopoDS_Face& F = TopoDS::Face( getMeshDS()->IndexToShape( f2sd->first ));
SMESH_subMesh* sm = _mesh->GetSubMesh( F );
SMESHDS_SubMesh* smDS = sm->GetSubMeshDS();
+ Handle(Geom_Surface) surface = BRep_Tool::Surface(F);
+
helper.SetSubShape(F);
// ===========================
}
// Find _LayerEdge's inflated along F
- vector< _LayerEdge* > lEdges;
+ lEdges.clear();
{
- SMESH_subMeshIteratorPtr subIt =
- sm->getDependsOnIterator(/*includeSelf=*/false, /*complexShapeFirst=*/false);
+ set< TGeomID > subIDs;
+ SMESH_subMeshIteratorPtr subIt = sm->getDependsOnIterator(/*includeSelf=*/false);
while ( subIt->more() )
+ subIDs.insert( subIt->next()->GetId() );
+
+ int iBeg, iEnd = 0;
+ for ( int iS = 0; iS < data._endEdgeOnShape.size() && !subIDs.empty(); ++iS )
{
- SMESH_subMesh* sub = subIt->next();
- SMESHDS_SubMesh* subDS = sub->GetSubMeshDS();
- if ( subDS->NbNodes() == 0 || !n2eMap.count( subDS->GetNodes()->next() ))
- continue;
- SMDS_NodeIteratorPtr nIt = subDS->GetNodes();
- while ( nIt->more() )
- {
- _LayerEdge* edge = n2eMap[ nIt->next() ];
- lEdges.push_back( edge );
- prepareEdgeToShrink( *edge, F, helper, smDS );
- }
+ iBeg = iEnd;
+ iEnd = data._endEdgeOnShape[ iS ];
+ TGeomID shapeID = data._edges[ iBeg ]->_nodes[0]->getshapeId();
+ set< TGeomID >::iterator idIt = subIDs.find( shapeID );
+ if ( idIt == subIDs.end() ||
+ data._edges[ iBeg ]->_sWOL.IsNull() ) continue;
+ subIDs.erase( idIt );
+
+ if ( !data._noShrinkShapes.count( shapeID ))
+ for ( ; iBeg < iEnd; ++iBeg )
+ {
+ lEdges.push_back( data._edges[ iBeg ] );
+ prepareEdgeToShrink( *data._edges[ iBeg ], F, helper, smDS );
+ }
}
}
+ dumpFunction(SMESH_Comment("beforeShrinkFace")<<f2sd->first); // debug
+ SMDS_ElemIteratorPtr fIt = smDS->GetElements();
+ while ( fIt->more() )
+ if ( const SMDS_MeshElement* f = fIt->next() )
+ dumpChangeNodes( f );
+
// Replace source nodes by target nodes in mesh faces to shrink
+ dumpFunction(SMESH_Comment("replNodesOnFace")<<f2sd->first); // debug
const SMDS_MeshNode* nodes[20];
- for ( unsigned i = 0; i < lEdges.size(); ++i )
+ for ( size_t i = 0; i < lEdges.size(); ++i )
{
_LayerEdge& edge = *lEdges[i];
const SMDS_MeshNode* srcNode = edge._nodes[0];
const SMDS_MeshElement* f = fIt->next();
if ( !smDS->Contains( f ))
continue;
- SMDS_ElemIteratorPtr nIt = f->nodesIterator();
- for ( int iN = 0; iN < f->NbNodes(); ++iN )
+ SMDS_NodeIteratorPtr nIt = f->nodeIterator();
+ for ( int iN = 0; nIt->more(); ++iN )
{
- const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nIt->next() );
+ const SMDS_MeshNode* n = nIt->next();
nodes[iN] = ( n == srcNode ? tgtNode : n );
}
helper.GetMeshDS()->ChangeElementNodes( f, nodes, f->NbNodes() );
+ dumpChangeNodes( f );
}
}
// Create _SmoothNode's on face F
vector< _SmoothNode > nodesToSmooth( smoothNodes.size() );
{
- dumpFunction(SMESH_Comment("beforeShrinkFace")<<f2sd->first); // debug
+ dumpFunction(SMESH_Comment("fixUVOnFace")<<f2sd->first); // debug
const bool sortSimplices = isConcaveFace;
- for ( unsigned i = 0; i < smoothNodes.size(); ++i )
+ for ( size_t i = 0; i < smoothNodes.size(); ++i )
{
const SMDS_MeshNode* n = smoothNodes[i];
nodesToSmooth[ i ]._node = n;
helper.GetNodeUV( F, n, 0, &isOkUV);
dumpMove( n );
}
- dumpFunctionEnd();
}
//if ( nodesToSmooth.empty() ) continue;
- // Find EDGE's to shrink
+ // Find EDGE's to shrink and set simpices to LayerEdge's
set< _Shrinker1D* > eShri1D;
{
- for ( unsigned i = 0; i < lEdges.size(); ++i )
+ for ( size_t i = 0; i < lEdges.size(); ++i )
{
_LayerEdge* edge = lEdges[i];
if ( edge->_sWOL.ShapeType() == TopAbs_EDGE )
// srinked while srinking another FACE
srinker.RestoreParams();
}
+ getSimplices( /*tgtNode=*/edge->_nodes.back(), edge->_simplices, ignoreShapes );
+ }
+ }
+
+ bool toFixTria = false; // to improve quality of trias by diagonal swap
+ if ( isConcaveFace )
+ {
+ const bool hasTria = _mesh->NbTriangles(), hasQuad = _mesh->NbQuadrangles();
+ if ( hasTria != hasQuad ) {
+ toFixTria = hasTria;
+ }
+ else {
+ set<int> nbNodesSet;
+ SMDS_ElemIteratorPtr fIt = smDS->GetElements();
+ while ( fIt->more() && nbNodesSet.size() < 2 )
+ nbNodesSet.insert( fIt->next()->NbCornerNodes() );
+ toFixTria = ( *nbNodesSet.begin() == 3 );
}
}
bool shrinked = true;
int badNb, shriStep=0, smooStep=0;
_SmoothNode::SmoothType smoothType
- = isConcaveFace ? _SmoothNode::CENTROIDAL : _SmoothNode::LAPLACIAN;
+ = isConcaveFace ? _SmoothNode::ANGULAR : _SmoothNode::LAPLACIAN;
while ( shrinked )
{
shriStep++;
// -----------------------------------------------
dumpFunction(SMESH_Comment("moveBoundaryOnF")<<f2sd->first<<"_st"<<shriStep ); // debug
shrinked = false;
- for ( unsigned i = 0; i < lEdges.size(); ++i )
+ for ( size_t i = 0; i < lEdges.size(); ++i )
{
shrinked |= lEdges[i]->SetNewLength2d( surface,F,helper );
}
// Smoothing in 2D
// -----------------
int nbNoImpSteps = 0;
- bool moved = true;
+ bool moved = true;
badNb = 1;
while (( nbNoImpSteps < 5 && badNb > 0) && moved)
{
int oldBadNb = badNb;
badNb = 0;
moved = false;
- for ( unsigned i = 0; i < nodesToSmooth.size(); ++i )
+ for ( size_t i = 0; i < nodesToSmooth.size(); ++i )
{
moved |= nodesToSmooth[i].Smooth( badNb,surface,helper,refSign,
smoothType, /*set3D=*/isConcaveFace);
return error(SMESH_Comment("Can't shrink 2D mesh on face ") << f2sd->first );
if ( shriStep > 200 )
return error(SMESH_Comment("Infinite loop at shrinking 2D mesh on face ") << f2sd->first );
- }
+
+ // Fix narrow triangles by swapping diagonals
+ // ---------------------------------------
+ if ( toFixTria )
+ {
+ set<const SMDS_MeshNode*> usedNodes;
+ fixBadFaces( F, helper, /*is2D=*/true, shriStep, & usedNodes); // swap diagonals
+
+ // update working data
+ set<const SMDS_MeshNode*>::iterator n;
+ for ( size_t i = 0; i < nodesToSmooth.size() && !usedNodes.empty(); ++i )
+ {
+ n = usedNodes.find( nodesToSmooth[ i ]._node );
+ if ( n != usedNodes.end())
+ {
+ getSimplices( nodesToSmooth[ i ]._node,
+ nodesToSmooth[ i ]._simplices,
+ ignoreShapes, NULL,
+ /*sortSimplices=*/ smoothType == _SmoothNode::ANGULAR );
+ usedNodes.erase( n );
+ }
+ }
+ for ( size_t i = 0; i < lEdges.size() && !usedNodes.empty(); ++i )
+ {
+ n = usedNodes.find( /*tgtNode=*/ lEdges[i]->_nodes.back() );
+ if ( n != usedNodes.end())
+ {
+ getSimplices( lEdges[i]->_nodes.back(),
+ lEdges[i]->_simplices,
+ ignoreShapes );
+ usedNodes.erase( n );
+ }
+ }
+ }
+ // TODO: check effect of this additional smooth
+ // additional laplacian smooth to increase allowed shrink step
+ // for ( int st = 1; st; --st )
+ // {
+ // dumpFunction(SMESH_Comment("shrinkFace")<<f2sd->first<<"_st"<<++smooStep); // debug
+ // for ( size_t i = 0; i < nodesToSmooth.size(); ++i )
+ // {
+ // nodesToSmooth[i].Smooth( badNb,surface,helper,refSign,
+ // _SmoothNode::LAPLACIAN,/*set3D=*/false);
+ // }
+ // }
+ } // while ( shrinked )
// No wrongly shaped faces remain; final smooth. Set node XYZ.
bool isStructuredFixed = false;
isStructuredFixed = algo->FixInternalNodes( *data._proxyMesh, F );
if ( !isStructuredFixed )
{
- if ( isConcaveFace )
- fixBadFaces( F, helper ); // fix narrow faces by swapping diagonals
- for ( int st = /*highQuality ? 10 :*/ 3; st; --st )
+ if ( isConcaveFace ) // fix narrow faces by swapping diagonals
+ fixBadFaces( F, helper, /*is2D=*/false, ++shriStep );
+
+ for ( int st = 3; st; --st )
{
+ switch( st ) {
+ case 1: smoothType = _SmoothNode::LAPLACIAN; break;
+ case 2: smoothType = _SmoothNode::LAPLACIAN; break;
+ case 3: smoothType = _SmoothNode::ANGULAR; break;
+ }
dumpFunction(SMESH_Comment("shrinkFace")<<f2sd->first<<"_st"<<++smooStep); // debug
- for ( unsigned i = 0; i < nodesToSmooth.size(); ++i )
+ for ( size_t i = 0; i < nodesToSmooth.size(); ++i )
{
nodesToSmooth[i].Smooth( badNb,surface,helper,refSign,
smoothType,/*set3D=*/st==1 );
if ( !getMeshDS()->IsEmbeddedMode() )
// Log node movement
- for ( unsigned i = 0; i < nodesToSmooth.size(); ++i )
+ for ( size_t i = 0; i < nodesToSmooth.size(); ++i )
{
SMESH_TNodeXYZ p ( nodesToSmooth[i]._node );
getMeshDS()->MoveNode( nodesToSmooth[i]._node, p.X(), p.Y(), p.Z() );
const SMDS_MeshNode* srcNode = edge._nodes[0];
const SMDS_MeshNode* tgtNode = edge._nodes.back();
- edge._pos.clear();
-
if ( edge._sWOL.ShapeType() == TopAbs_FACE )
{
- gp_XY srcUV = helper.GetNodeUV( F, srcNode );
- gp_XY tgtUV = helper.GetNodeUV( F, tgtNode );
+ gp_XY srcUV( edge._pos[0].X(), edge._pos[0].Y() );//helper.GetNodeUV( F, srcNode );
+ gp_XY tgtUV = edge.LastUV( F ); //helper.GetNodeUV( F, tgtNode );
gp_Vec2d uvDir( srcUV, tgtUV );
double uvLen = uvDir.Magnitude();
uvDir /= uvLen;
- edge._normal.SetCoord( uvDir.X(),uvDir.Y(), 0);
+ edge._normal.SetCoord( uvDir.X(),uvDir.Y(), 0 );
edge._len = uvLen;
- // IMPORTANT to have src nodes NOT yet REPLACED by tgt nodes in shrinked faces
- vector<const SMDS_MeshElement*> faces;
- multimap< double, const SMDS_MeshNode* > proj2node;
- SMDS_ElemIteratorPtr fIt = srcNode->GetInverseElementIterator(SMDSAbs_Face);
- while ( fIt->more() )
- {
- const SMDS_MeshElement* f = fIt->next();
- if ( faceSubMesh->Contains( f ))
- faces.push_back( f );
- }
- for ( unsigned i = 0; i < faces.size(); ++i )
- {
- const int nbNodes = faces[i]->NbCornerNodes();
- for ( int j = 0; j < nbNodes; ++j )
- {
- const SMDS_MeshNode* n = faces[i]->GetNode(j);
- if ( n == srcNode ) continue;
- if ( n->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE &&
- ( faces.size() > 1 || nbNodes > 3 ))
- continue;
- gp_Pnt2d uv = helper.GetNodeUV( F, n );
- gp_Vec2d uvDirN( srcUV, uv );
- double proj = uvDirN * uvDir;
- proj2node.insert( make_pair( proj, n ));
- }
- }
-
- multimap< double, const SMDS_MeshNode* >::iterator p2n = proj2node.begin(), p2nEnd;
- const double minProj = p2n->first;
- const double projThreshold = 1.1 * uvLen;
- if ( minProj > projThreshold )
- {
- // tgtNode is located so that it does not make faces with wrong orientation
- return true;
- }
edge._pos.resize(1);
edge._pos[0].SetCoord( tgtUV.X(), tgtUV.Y(), 0 );
- // store most risky nodes in _simplices
- p2nEnd = proj2node.lower_bound( projThreshold );
- int nbSimpl = ( std::distance( p2n, p2nEnd ) + 1) / 2;
- edge._simplices.resize( nbSimpl );
- for ( int i = 0; i < nbSimpl; ++i )
- {
- edge._simplices[i]._nPrev = p2n->second;
- if ( ++p2n != p2nEnd )
- edge._simplices[i]._nNext = p2n->second;
- }
// set UV of source node to target node
SMDS_FacePosition* pos = static_cast<SMDS_FacePosition*>( tgtNode->GetPosition() );
pos->SetUParameter( srcUV.X() );
}
else // _sWOL is TopAbs_EDGE
{
- TopoDS_Edge E = TopoDS::Edge( edge._sWOL);
+ const TopoDS_Edge& E = TopoDS::Edge( edge._sWOL );
SMESHDS_SubMesh* edgeSM = getMeshDS()->MeshElements( E );
if ( !edgeSM || edgeSM->NbElements() == 0 )
return error(SMESH_Comment("Not meshed EDGE ") << getMeshDS()->ShapeToIndex( E ));
double uSrc = helper.GetNodeU( E, srcNode, n2 );
double uTgt = helper.GetNodeU( E, tgtNode, srcNode );
- double u2 = helper.GetNodeU( E, n2, srcNode );
+ double u2 = helper.GetNodeU( E, n2, srcNode );
+
+ edge._pos.clear();
if ( fabs( uSrc-uTgt ) < 0.99 * fabs( uSrc-u2 ))
{
edge._simplices.resize( 1 );
edge._simplices[0]._nPrev = n2;
- // set UV of source node to target node
+ // set U of source node to the target node
SMDS_EdgePosition* pos = static_cast<SMDS_EdgePosition*>( tgtNode->GetPosition() );
pos->SetUParameter( uSrc );
}
return true;
+}
- //================================================================================
- /*!
- * \brief Compute positions (UV) to set to a node on edge moved during shrinking
- */
- //================================================================================
-
- // Compute UV to follow during shrinking
-
-// const SMDS_MeshNode* srcNode = edge._nodes[0];
-// const SMDS_MeshNode* tgtNode = edge._nodes.back();
-
-// gp_XY srcUV = helper.GetNodeUV( F, srcNode );
-// gp_XY tgtUV = helper.GetNodeUV( F, tgtNode );
-// gp_Vec2d uvDir( srcUV, tgtUV );
-// double uvLen = uvDir.Magnitude();
-// uvDir /= uvLen;
-
-// // Select shrinking step such that not to make faces with wrong orientation.
-// // IMPORTANT to have src nodes NOT yet REPLACED by tgt nodes in shrinked faces
-// const double minStepSize = uvLen / 20;
-// double stepSize = uvLen;
-// SMDS_ElemIteratorPtr fIt = srcNode->GetInverseElementIterator(SMDSAbs_Face);
-// while ( fIt->more() )
-// {
-// const SMDS_MeshElement* f = fIt->next();
-// if ( !faceSubMesh->Contains( f )) continue;
-// const int nbNodes = f->NbCornerNodes();
-// for ( int i = 0; i < nbNodes; ++i )
-// {
-// const SMDS_MeshNode* n = f->GetNode(i);
-// if ( n->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE || n == srcNode)
-// continue;
-// gp_XY uv = helper.GetNodeUV( F, n );
-// gp_Vec2d uvDirN( srcUV, uv );
-// double proj = uvDirN * uvDir;
-// if ( proj < stepSize && proj > minStepSize )
-// stepSize = proj;
-// }
-// }
-// stepSize *= 0.8;
-
-// const int nbSteps = ceil( uvLen / stepSize );
-// gp_XYZ srcUV0( srcUV.X(), srcUV.Y(), 0 );
-// gp_XYZ tgtUV0( tgtUV.X(), tgtUV.Y(), 0 );
-// edge._pos.resize( nbSteps );
-// edge._pos[0] = tgtUV0;
-// for ( int i = 1; i < nbSteps; ++i )
-// {
-// double r = i / double( nbSteps );
-// edge._pos[i] = (1-r) * tgtUV0 + r * srcUV0;
-// }
-// return true;
+//================================================================================
+/*!
+ * \brief Restore position of a sole node of a _LayerEdge based on _noShrinkShapes
+ */
+//================================================================================
+
+void _ViscousBuilder::restoreNoShrink( _LayerEdge& edge ) const
+{
+ if ( edge._nodes.size() == 1 )
+ {
+ edge._pos.clear();
+ edge._len = 0;
+
+ const SMDS_MeshNode* srcNode = edge._nodes[0];
+ TopoDS_Shape S = SMESH_MesherHelper::GetSubShapeByNode( srcNode, getMeshDS() );
+ if ( S.IsNull() ) return;
+
+ gp_Pnt p;
+
+ switch ( S.ShapeType() )
+ {
+ case TopAbs_EDGE:
+ {
+ double f,l;
+ TopLoc_Location loc;
+ Handle(Geom_Curve) curve = BRep_Tool::Curve( TopoDS::Edge( S ), loc, f, l );
+ if ( curve.IsNull() ) return;
+ SMDS_EdgePosition* ePos = static_cast<SMDS_EdgePosition*>( srcNode->GetPosition() );
+ p = curve->Value( ePos->GetUParameter() );
+ break;
+ }
+ case TopAbs_VERTEX:
+ {
+ p = BRep_Tool::Pnt( TopoDS::Vertex( S ));
+ break;
+ }
+ default: return;
+ }
+ getMeshDS()->MoveNode( srcNode, p.X(), p.Y(), p.Z() );
+ dumpMove( srcNode );
+ }
}
//================================================================================
*/
//================================================================================
-void _ViscousBuilder::fixBadFaces(const TopoDS_Face& F, SMESH_MesherHelper& helper)
+void _ViscousBuilder::fixBadFaces(const TopoDS_Face& F,
+ SMESH_MesherHelper& helper,
+ const bool is2D,
+ const int step,
+ set<const SMDS_MeshNode*> * involvedNodes)
{
SMESH::Controls::AspectRatio qualifier;
SMESH::Controls::TSequenceOfXYZ points(3), points1(3), points2(3);
- const double maxAspectRatio = 4.;
+ const double maxAspectRatio = is2D ? 4. : 2;
+ _NodeCoordHelper xyz( F, helper, is2D );
// find bad triangles
vector< const SMDS_MeshElement* > badTrias;
vector< double > badAspects;
- SMESHDS_SubMesh* sm = helper.GetMeshDS()->MeshElements( F );
+ SMESHDS_SubMesh* sm = helper.GetMeshDS()->MeshElements( F );
SMDS_ElemIteratorPtr fIt = sm->GetElements();
while ( fIt->more() )
{
const SMDS_MeshElement * f = fIt->next();
if ( f->NbCornerNodes() != 3 ) continue;
- for ( int iP = 0; iP < 3; ++iP ) points(iP+1) = SMESH_TNodeXYZ( f->GetNode(iP));
+ for ( int iP = 0; iP < 3; ++iP ) points(iP+1) = xyz( f->GetNode(iP));
double aspect = qualifier.GetValue( points );
if ( aspect > maxAspectRatio )
{
badAspects.push_back( aspect );
}
}
+ if ( step == 1 )
+ {
+ dumpFunction(SMESH_Comment("beforeSwapDiagonals_F")<<helper.GetSubShapeID());
+ SMDS_ElemIteratorPtr fIt = sm->GetElements();
+ while ( fIt->more() )
+ {
+ const SMDS_MeshElement * f = fIt->next();
+ if ( f->NbCornerNodes() == 3 )
+ dumpChangeNodes( f );
+ }
+ dumpFunctionEnd();
+ }
if ( badTrias.empty() )
return;
double aspRatio [3];
int i1, i2, i3;
- involvedFaces.insert( badTrias[iTia] );
+ if ( !involvedFaces.insert( badTrias[iTia] ).second )
+ continue;
for ( int iP = 0; iP < 3; ++iP )
- points(iP+1) = SMESH_TNodeXYZ( badTrias[iTia]->GetNode(iP));
+ points(iP+1) = xyz( badTrias[iTia]->GetNode(iP));
// find triangles adjacent to badTrias[iTia] with better aspect ratio after diag-swaping
int bestCouple = -1;
trias [iSide].first = badTrias[iTia];
trias [iSide].second = SMESH_MeshAlgos::FindFaceInSet( n1, n2, emptySet, involvedFaces,
& i1, & i2 );
- if ( ! trias[iSide].second || trias[iSide].second->NbCornerNodes() != 3 )
+ if (( ! trias[iSide].second ) ||
+ ( trias[iSide].second->NbCornerNodes() != 3 ) ||
+ ( ! sm->Contains( trias[iSide].second )))
continue;
// aspect ratio of an adjacent tria
for ( int iP = 0; iP < 3; ++iP )
- points2(iP+1) = SMESH_TNodeXYZ( trias[iSide].second->GetNode(iP));
+ points2(iP+1) = xyz( trias[iSide].second->GetNode(iP));
double aspectInit = qualifier.GetValue( points2 );
// arrange nodes as after diag-swaping
if ( aspRatio[ iSide ] > aspectInit + badAspects[ iTia ] )
continue;
+ // prevent inversion of a triangle
+ gp_Vec norm1 = gp_Vec( points1(1), points1(3) ) ^ gp_Vec( points1(1), points1(2) );
+ gp_Vec norm2 = gp_Vec( points2(1), points2(3) ) ^ gp_Vec( points2(1), points2(2) );
+ if ( norm1 * norm2 < 0. && norm1.Angle( norm2 ) > 70./180.*M_PI )
+ continue;
+
if ( bestCouple < 0 || aspRatio[ bestCouple ] > aspRatio[ iSide ] )
bestCouple = iSide;
}
// swap diagonals
SMESH_MeshEditor editor( helper.GetMesh() );
- dumpFunction(SMESH_Comment("beforeSwapDiagonals_F")<<helper.GetSubShapeID());
+ dumpFunction(SMESH_Comment("beforeSwapDiagonals_F")<<helper.GetSubShapeID()<<"_"<<step);
for ( size_t i = 0; i < triaCouples.size(); ++i )
{
dumpChangeNodes( triaCouples[i].first );
dumpChangeNodes( triaCouples[i].second );
editor.InverseDiag( triaCouples[i].first, triaCouples[i].second );
}
- dumpFunctionEnd();
+
+ if ( involvedNodes )
+ for ( size_t i = 0; i < triaCouples.size(); ++i )
+ {
+ involvedNodes->insert( triaCouples[i].first->begin_nodes(),
+ triaCouples[i].first->end_nodes() );
+ involvedNodes->insert( triaCouples[i].second->begin_nodes(),
+ triaCouples[i].second->end_nodes() );
+ }
// just for debug dump resulting triangles
- dumpFunction(SMESH_Comment("swapDiagonals_F")<<helper.GetSubShapeID());
+ dumpFunction(SMESH_Comment("swapDiagonals_F")<<helper.GetSubShapeID()<<"_"<<step);
for ( size_t i = 0; i < triaCouples.size(); ++i )
{
dumpChangeNodes( triaCouples[i].first );
if ( _sWOL.ShapeType() == TopAbs_FACE )
{
gp_XY curUV = helper.GetNodeUV( F, tgtNode );
- gp_Pnt2d tgtUV( _pos[0].X(), _pos[0].Y());
+ gp_Pnt2d tgtUV( _pos[0].X(), _pos[0].Y() );
gp_Vec2d uvDir( _normal.X(), _normal.Y() );
const double uvLen = tgtUV.Distance( curUV );
+ const double kSafe = Max( 0.5, 1. - 0.1 * _simplices.size() );
// Select shrinking step such that not to make faces with wrong orientation.
- const double kSafe = 0.8;
- const double minStepSize = uvLen / 10;
- double stepSize = uvLen;
- for ( unsigned i = 0; i < _simplices.size(); ++i )
+ double stepSize = 1e100;
+ for ( size_t i = 0; i < _simplices.size(); ++i )
{
- const SMDS_MeshNode* nn[2] = { _simplices[i]._nPrev, _simplices[i]._nNext };
- for ( int j = 0; j < 2; ++j )
- if ( const SMDS_MeshNode* n = nn[j] )
- {
- gp_XY uv = helper.GetNodeUV( F, n );
- gp_Vec2d uvDirN( curUV, uv );
- double proj = uvDirN * uvDir * kSafe;
- if ( proj < stepSize && proj > minStepSize )
- stepSize = proj;
- else if ( proj < minStepSize )
- stepSize = minStepSize;
- }
+ // find intersection of 2 lines: curUV-tgtUV and that connecting simplex nodes
+ gp_XY uvN1 = helper.GetNodeUV( F, _simplices[i]._nPrev );
+ gp_XY uvN2 = helper.GetNodeUV( F, _simplices[i]._nNext );
+ gp_XY dirN = uvN2 - uvN1;
+ double det = uvDir.Crossed( dirN );
+ if ( Abs( det ) < std::numeric_limits<double>::min() ) continue;
+ gp_XY dirN2Cur = curUV - uvN1;
+ double step = dirN.Crossed( dirN2Cur ) / det;
+ if ( step > 0 )
+ stepSize = Min( step, stepSize );
}
-
gp_Pnt2d newUV;
- if ( uvLen - stepSize < _len / 20. )
+ if ( uvLen <= stepSize )
{
newUV = tgtUV;
_pos.clear();
}
+ else if ( stepSize > 0 )
+ {
+ newUV = curUV + uvDir.XY() * stepSize * kSafe;
+ }
else
{
- newUV = curUV + uvDir.XY() * stepSize;
+ return true;
}
-
SMDS_FacePosition* pos = static_cast<SMDS_FacePosition*>( tgtNode->GetPosition() );
pos->SetUParameter( newUV.X() );
pos->SetVParameter( newUV.Y() );
}
else // _sWOL is TopAbs_EDGE
{
- TopoDS_Edge E = TopoDS::Edge( _sWOL );
- const SMDS_MeshNode* n2 = _simplices[0]._nPrev;
+ const TopoDS_Edge& E = TopoDS::Edge( _sWOL );
+ const SMDS_MeshNode* n2 = _simplices[0]._nPrev;
SMDS_EdgePosition* tgtPos = static_cast<SMDS_EdgePosition*>( tgtNode->GetPosition() );
- const double u2 = helper.GetNodeU( E, n2, tgtNode );
+ const double u2 = helper.GetNodeU( E, n2, tgtNode );
const double uSrc = _pos[0].Coord( U_SRC );
const double lenTgt = _pos[0].Coord( LEN_TGT );
// compute new UV for the node
gp_XY newPos (0,0);
-/* if ( how == ANGULAR && _simplices.size() == 4 )
+ if ( how == TFI && _simplices.size() == 4 )
{
- vector<gp_XY> corners; corners.reserve(4);
+ gp_XY corners[4];
for ( size_t i = 0; i < _simplices.size(); ++i )
if ( _simplices[i]._nOpp )
- corners.push_back( helper.GetNodeUV( face, _simplices[i]._nOpp, _node ));
- if ( corners.size() == 4 )
- {
- newPos = helper.calcTFI
- ( 0.5, 0.5,
- corners[0], corners[1], corners[2], corners[3],
- uv[1], uv[2], uv[3], uv[0] );
- }
- // vector<gp_XY> p( _simplices.size() * 2 + 1 );
- // p.clear();
- // for ( size_t i = 0; i < _simplices.size(); ++i )
- // {
- // p.push_back( uv[i] );
- // if ( _simplices[i]._nOpp )
- // p.push_back( helper.GetNodeUV( face, _simplices[i]._nOpp, _node ));
- // }
- // newPos = computeAngularPos( p, helper.GetNodeUV( face, _node ), refSign );
+ corners[i] = helper.GetNodeUV( face, _simplices[i]._nOpp, _node );
+ else
+ throw SALOME_Exception(LOCALIZED("TFI smoothing: _Simplex::_nOpp not set!"));
+
+ newPos = helper.calcTFI ( 0.5, 0.5,
+ corners[0], corners[1], corners[2], corners[3],
+ uv[1], uv[2], uv[3], uv[0] );
}
- else*/ if ( how == CENTROIDAL && _simplices.size() > 3 )
+ else if ( how == ANGULAR )
+ {
+ newPos = computeAngularPos( uv, helper.GetNodeUV( face, _node ), refSign );
+ }
+ else if ( how == CENTROIDAL && _simplices.size() > 3 )
{
// average centers of diagonals wieghted with their reciprocal lengths
if ( _simplices.size() == 4 )
else
{
// Laplacian smooth
- //isCentroidal = false;
for ( size_t i = 0; i < _simplices.size(); ++i )
newPos += uv[i];
newPos /= _simplices.size();
// count quality metrics (orientation) of triangles around the node
int nbOkBefore = 0;
gp_XY tgtUV = helper.GetNodeUV( face, _node );
- for ( unsigned i = 0; i < _simplices.size(); ++i )
+ for ( size_t i = 0; i < _simplices.size(); ++i )
nbOkBefore += _simplices[i].IsForward( tgtUV, _node, face, helper, refSign );
int nbOkAfter = 0;
- for ( unsigned i = 0; i < _simplices.size(); ++i )
+ for ( size_t i = 0; i < _simplices.size(); ++i )
nbOkAfter += _simplices[i].IsForward( newPos, _node, face, helper, refSign );
if ( nbOkAfter < nbOkBefore )
{
- // if ( isCentroidal )
- // return Smooth( badNb, surface, helper, refSign, !isCentroidal, set3D );
badNb += _simplices.size() - nbOkBefore;
return false;
}
{
uv.push_back( uv.front() );
- vector< gp_XY > edgeDir( uv.size() );
+ vector< gp_XY > edgeDir ( uv.size() );
vector< double > edgeSize( uv.size() );
for ( size_t i = 1; i < edgeDir.size(); ++i )
{
- edgeDir[i-1] = uv[i] - uv[i-1];
+ edgeDir [i-1] = uv[i] - uv[i-1];
edgeSize[i-1] = edgeDir[i-1].Modulus();
if ( edgeSize[i-1] < numeric_limits<double>::min() )
edgeDir[i-1].SetX( 100 );
else
edgeDir[i-1] /= edgeSize[i-1] * refSign;
}
- edgeDir.back() = edgeDir.front();
+ edgeDir.back() = edgeDir.front();
edgeSize.back() = edgeSize.front();
- gp_XY newPos(0,0);
- int nbEdges = 0;
+ gp_XY newPos(0,0);
+ int nbEdges = 0;
double sumSize = 0;
for ( size_t i = 1; i < edgeDir.size(); ++i )
{
}
bisec /= bisecSize;
- gp_XY dirToN = uvToFix - p;
+ gp_XY dirToN = uvToFix - p;
double distToN = dirToN.Modulus();
if ( bisec * dirToN < 0 )
distToN = -distToN;
_SolidData::~_SolidData()
{
- for ( unsigned i = 0; i < _edges.size(); ++i )
+ for ( size_t i = 0; i < _edges.size(); ++i )
{
if ( _edges[i] && _edges[i]->_2neibors )
delete _edges[i]->_2neibors;
{
// remove target node of the _LayerEdge from _nodes
int nbFound = 0;
- for ( unsigned i = 0; i < _nodes.size(); ++i )
+ for ( size_t i = 0; i < _nodes.size(); ++i )
if ( !_nodes[i] || _nodes[i] == tgtNode0 || _nodes[i] == tgtNode1 )
_nodes[i] = 0, nbFound++;
if ( nbFound == _nodes.size() )
l = helper.GetNodeU( E, _edges[1]->_nodes.back(), _nodes.back() );
double totLen = GCPnts_AbscissaPoint::Length( aCurve, f, l );
- for ( unsigned i = 0; i < _nodes.size(); ++i )
+ for ( size_t i = 0; i < _nodes.size(); ++i )
{
if ( !_nodes[i] ) continue;
double len = totLen * _normPar[i];
if ( _edges[1] )
l = helper.GetNodeU( E, _edges[1]->_nodes.back(), _nodes.back() );
- for ( unsigned i = 0; i < _nodes.size(); ++i )
+ for ( size_t i = 0; i < _nodes.size(); ++i )
{
if ( !_nodes[i] ) continue;
double u = f * ( 1-_normPar[i] ) + l * _normPar[i];
void _Shrinker1D::RestoreParams()
{
if ( _done )
- for ( unsigned i = 0; i < _nodes.size(); ++i )
+ for ( size_t i = 0; i < _nodes.size(); ++i )
{
if ( !_nodes[i] ) continue;
SMDS_EdgePosition* pos = static_cast<SMDS_EdgePosition*>( _nodes[i]->GetPosition() );
{
SMESH_MesherHelper helper( *_mesh );
- for ( unsigned i = 0; i < _sdVec.size(); ++i )
+ vector< const SMDS_MeshNode* > faceNodes;
+
+ for ( size_t i = 0; i < _sdVec.size(); ++i )
{
_SolidData& data = _sdVec[i];
TopTools_IndexedMapOfShape geomEdges;
for ( int iE = 1; iE <= geomEdges.Extent(); ++iE )
{
const TopoDS_Edge& E = TopoDS::Edge( geomEdges(iE));
+ if ( data._noShrinkShapes.count( getMeshDS()->ShapeToIndex( E )))
+ continue;
// Get _LayerEdge's based on E
if ( nbSharedPyram > 1 )
continue; // not free border of the pyramid
- if ( getMeshDS()->FindFace( ledges[0]->_nodes[0], ledges[0]->_nodes[1],
- ledges[1]->_nodes[0], ledges[1]->_nodes[1]))
+ faceNodes.clear();
+ faceNodes.push_back( ledges[0]->_nodes[0] );
+ faceNodes.push_back( ledges[1]->_nodes[0] );
+ if ( ledges[0]->_nodes.size() > 1 ) faceNodes.push_back( ledges[0]->_nodes[1] );
+ if ( ledges[1]->_nodes.size() > 1 ) faceNodes.push_back( ledges[1]->_nodes[1] );
+
+ if ( getMeshDS()->FindElement( faceNodes, SMDSAbs_Face, /*noMedium=*/true))
continue; // faces already created
}
for ( ++u2n; u2n != u2nodes.end(); ++u2n )
{
const TopoDS_Shape* pF = fIt->next();
if ( helper.IsSubShape( *pF, data._solid) &&
- !_ignoreShapeIds.count( e2f->first ))
+ !data._ignoreFaceIds.count( e2f->first ))
F = *pF;
}
}
// Make faces
const int dj1 = reverse ? 0 : 1;
const int dj2 = reverse ? 1 : 0;
- for ( unsigned j = 1; j < ledges.size(); ++j )
+ for ( size_t j = 1; j < ledges.size(); ++j )
{
vector< const SMDS_MeshNode*>& nn1 = ledges[j-dj1]->_nodes;
vector< const SMDS_MeshNode*>& nn2 = ledges[j-dj2]->_nodes;
- if ( isOnFace )
- for ( size_t z = 1; z < nn1.size(); ++z )
- sm->AddElement( getMeshDS()->AddFace( nn1[z-1], nn2[z-1], nn2[z], nn1[z] ));
+ if ( nn1.size() == nn2.size() )
+ {
+ if ( isOnFace )
+ for ( size_t z = 1; z < nn1.size(); ++z )
+ sm->AddElement( getMeshDS()->AddFace( nn1[z-1], nn2[z-1], nn2[z], nn1[z] ));
+ else
+ for ( size_t z = 1; z < nn1.size(); ++z )
+ sm->AddElement( new SMDS_FaceOfNodes( nn1[z-1], nn2[z-1], nn2[z], nn1[z] ));
+ }
+ else if ( nn1.size() == 1 )
+ {
+ if ( isOnFace )
+ for ( size_t z = 1; z < nn2.size(); ++z )
+ sm->AddElement( getMeshDS()->AddFace( nn1[0], nn2[z-1], nn2[z] ));
+ else
+ for ( size_t z = 1; z < nn2.size(); ++z )
+ sm->AddElement( new SMDS_FaceOfNodes( nn1[0], nn2[z-1], nn2[z] ));
+ }
else
- for ( size_t z = 1; z < nn1.size(); ++z )
- sm->AddElement( new SMDS_FaceOfNodes( nn1[z-1], nn2[z-1], nn2[z], nn1[z]));
+ {
+ if ( isOnFace )
+ for ( size_t z = 1; z < nn1.size(); ++z )
+ sm->AddElement( getMeshDS()->AddFace( nn1[z-1], nn2[0], nn1[z] ));
+ else
+ for ( size_t z = 1; z < nn1.size(); ++z )
+ sm->AddElement( new SMDS_FaceOfNodes( nn1[z-1], nn2[0], nn2[z] ));
+ }
}
// Make edges
if ( !edge->_sWOL.IsNull() && edge->_sWOL.ShapeType() == TopAbs_EDGE )
{
vector< const SMDS_MeshNode*>& nn = edge->_nodes;
- if ( nn[1]->GetInverseElementIterator( SMDSAbs_Edge )->more() )
+ if ( nn.size() < 2 || nn[1]->GetInverseElementIterator( SMDSAbs_Edge )->more() )
continue;
helper.SetSubShape( edge->_sWOL );
helper.SetElementsOnShape( true );
