#include "SMESH_subMeshEventListener.hxx"
#include "StdMeshers_FaceSide.hxx"
+#include <Adaptor3d_HSurface.hxx>
#include <BRepAdaptor_Curve2d.hxx>
#include <BRepAdaptor_Surface.hxx>
#include <BRepLProp_SLProps.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Vertex.hxx>
#include <gp_Ax1.hxx>
+#include <gp_Cone.hxx>
+#include <gp_Sphere.hxx>
#include <gp_Vec.hxx>
#include <gp_XY.hxx>
#include <cmath>
#include <limits>
+#ifdef _DEBUG_
//#define __myDEBUG
+//#define __NOT_INVALIDATE_BAD_SMOOTH
+#endif
using namespace std;
enum UIndex { U_TGT = 1, U_SRC, LEN_TGT };
const double theMinSmoothCosin = 0.1;
+ const double theSmoothThickToElemSizeRatio = 0.3;
+
+ // what part of thickness is allowed till intersection
+ // (defined by SALOME_TESTS/Grids/smesh/viscous_layers_00/A5)
+ const double theThickToIntersection = 1.5;
+
+ bool needSmoothing( double cosin, double tgtThick, double elemSize )
+ {
+ return cosin * tgtThick > theSmoothThickToElemSizeRatio * elemSize;
+ }
/*!
* \brief SMESH_ProxyMesh computed by _ViscousBuilder for a SOLID.
struct _MeshOfSolid : public SMESH_ProxyMesh,
public SMESH_subMeshEventListenerData
{
- bool _n2nMapComputed;
+ bool _n2nMapComputed;
+ SMESH_ComputeErrorPtr _warning;
_MeshOfSolid( SMESH_Mesh* mesh)
:SMESH_subMeshEventListenerData( /*isDeletable=*/true),_n2nMapComputed(false)
SMESH_subMeshEventListenerData* data,
const SMESH_Hypothesis* hyp)
{
- if ( SMESH_subMesh::COMPUTE_EVENT == eventType )
+ if ( SMESH_subMesh::COMPUTE_EVENT == eventType &&
+ SMESH_subMesh::CHECK_COMPUTE_STATE != event)
{
// delete SMESH_ProxyMesh containing temporary faces
subMesh->DeleteEventListener( this );
sub->SetEventListener( _ShrinkShapeListener::Get(), data, /*whereToListenTo=*/mainSM );
}
}
+ struct _SolidData;
//--------------------------------------------------------------------------------
/*!
* \brief Simplex (triangle or tetrahedron) based on 1 (tria) or 2 (tet) nodes of
const SMDS_MeshNode* nNext=0,
const SMDS_MeshNode* nOpp=0)
: _nPrev(nPrev), _nNext(nNext), _nOpp(nOpp) {}
- bool IsForward(const SMDS_MeshNode* nSrc, const gp_XYZ* pntTgt) const
+ bool IsForward(const SMDS_MeshNode* nSrc, const gp_XYZ* pntTgt, double& vol) const
{
const double M[3][3] =
{{ _nNext->X() - nSrc->X(), _nNext->Y() - nSrc->Y(), _nNext->Z() - nSrc->Z() },
{ pntTgt->X() - nSrc->X(), pntTgt->Y() - nSrc->Y(), pntTgt->Z() - nSrc->Z() },
{ _nPrev->X() - nSrc->X(), _nPrev->Y() - nSrc->Y(), _nPrev->Z() - nSrc->Z() }};
- double determinant = ( + M[0][0]*M[1][1]*M[2][2]
- + M[0][1]*M[1][2]*M[2][0]
- + M[0][2]*M[1][0]*M[2][1]
- - M[0][0]*M[1][2]*M[2][1]
- - M[0][1]*M[1][0]*M[2][2]
- - M[0][2]*M[1][1]*M[2][0]);
- return determinant > 1e-100;
+ vol = ( + M[0][0]*M[1][1]*M[2][2]
+ + M[0][1]*M[1][2]*M[2][0]
+ + M[0][2]*M[1][0]*M[2][1]
+ - M[0][0]*M[1][2]*M[2][1]
+ - M[0][1]*M[1][0]*M[2][2]
+ - M[0][2]*M[1][1]*M[2][0]);
+ return vol > 1e-100;
}
bool IsForward(const gp_XY& tgtUV,
const SMDS_MeshNode* smoothedNode,
{
return _nPrev == other._nNext || _nNext == other._nPrev;
}
+ static void GetSimplices( const SMDS_MeshNode* node,
+ vector<_Simplex>& simplices,
+ const set<TGeomID>& ingnoreShapes,
+ const _SolidData* dataToCheckOri = 0,
+ const bool toSort = false);
+ static void SortSimplices(vector<_Simplex>& simplices);
};
//--------------------------------------------------------------------------------
/*!
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;
+ struct _2NearEdges;
+ struct _LayerEdge;
+ typedef map< const SMDS_MeshNode*, _LayerEdge*, TIDCompare > TNode2Edge;
- _2NearEdges() { _nodes[0]=_nodes[1]=0; _plnNorm = 0; }
- void reverse() {
- std::swap( _nodes[0], _nodes[1] );
- std::swap( _wgt [0], _wgt [1] );
- std::swap( _edges[0], _edges[1] );
- }
- };
//--------------------------------------------------------------------------------
/*!
* \brief Edge normal to surface, connecting a node on solid surface (_nodes[0])
*/
struct _LayerEdge
{
+ typedef gp_XYZ (_LayerEdge::*PSmooFun)();
+
vector< const SMDS_MeshNode*> _nodes;
gp_XYZ _normal; // to solid surface
// simplices connected to the source node (_nodes[0]);
// used for smoothing and quality check of _LayerEdge's based on the FACE
vector<_Simplex> _simplices;
+ PSmooFun _smooFunction; // smoothing function
// data for smoothing of _LayerEdge's based on the EDGE
_2NearEdges* _2neibors;
const SMDS_MeshNode* n2,
SMESH_MesherHelper& helper);
void InvalidateStep( int curStep, bool restoreLength=false );
- bool Smooth(int& badNb);
+ void ChooseSmooFunction(const set< TGeomID >& concaveVertices,
+ const TNode2Edge& n2eMap);
+ int Smooth(const int step, const bool isConcaveFace, const bool findBest);
bool SmoothOnEdge(Handle(Geom_Surface)& surface,
const TopoDS_Face& F,
SMESH_MesherHelper& helper);
double& dist,
const double& epsilon) const;
gp_Ax1 LastSegment(double& segLen) const;
+ 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 );
+ int NbSteps() const { return _pos.size() - 1; } // nb inlation steps
+
+ gp_XYZ smoothLaplacian();
+ gp_XYZ smoothAngular();
+ gp_XYZ smoothLengthWeighted();
+ gp_XYZ smoothCentroidal();
+ gp_XYZ smoothNefPolygon();
+
+ enum { FUN_LAPLACIAN, FUN_LENWEIGHTED, FUN_CENTROIDAL, FUN_NEFPOLY, FUN_ANGULAR, FUN_NB };
+ static const int theNbSmooFuns = FUN_NB;
+ static PSmooFun _funs[theNbSmooFuns];
+ static const char* _funNames[theNbSmooFuns+1];
+ int smooFunID( PSmooFun fun=0) const;
};
+ _LayerEdge::PSmooFun _LayerEdge::_funs[theNbSmooFuns] = { &_LayerEdge::smoothLaplacian,
+ &_LayerEdge::smoothLengthWeighted,
+ &_LayerEdge::smoothCentroidal,
+ &_LayerEdge::smoothNefPolygon,
+ &_LayerEdge::smoothAngular };
+ const char* _LayerEdge::_funNames[theNbSmooFuns+1] = { "Laplacian",
+ "LengthWeighted",
+ "Centroidal",
+ "NefPolygon",
+ "Angular",
+ "None"};
struct _LayerEdgeCmp
{
bool operator () (const _LayerEdge* e1, const _LayerEdge* e2) const
}
};
//--------------------------------------------------------------------------------
+ /*!
+ * A 2D half plane used by _LayerEdge::smoothNefPolygon()
+ */
+ struct _halfPlane
+ {
+ gp_XY _pos, _dir, _inNorm;
+ bool IsOut( const gp_XY p, const double tol ) const
+ {
+ return _inNorm * ( p - _pos ) < -tol;
+ }
+ bool FindInterestion( const _halfPlane& hp, gp_XY & intPnt )
+ {
+ const double eps = 1e-10;
+ double D = _dir.Crossed( hp._dir );
+ if ( fabs(D) < std::numeric_limits<double>::min())
+ return false;
+ gp_XY vec21 = _pos - hp._pos;
+ double u = hp._dir.Crossed( vec21 ) / D;
+ intPnt = _pos + _dir * u;
+ return true;
+ }
+ };
+ //--------------------------------------------------------------------------------
+ /*!
+ * 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
};
//--------------------------------------------------------------------------------
+ /*!
+ * \brief Layers parameters got by averaging several hypotheses
+ */
+ struct AverageHyp
+ {
+ AverageHyp( const StdMeshers_ViscousLayers* hyp = 0 )
+ :_nbLayers(0), _nbHyps(0), _thickness(0), _stretchFactor(0)
+ {
+ Add( hyp );
+ }
+ void Add( const StdMeshers_ViscousLayers* hyp )
+ {
+ if ( hyp )
+ {
+ _nbHyps++;
+ _nbLayers = hyp->GetNumberLayers();
+ //_thickness += hyp->GetTotalThickness();
+ _thickness = Max( _thickness, hyp->GetTotalThickness() );
+ _stretchFactor += hyp->GetStretchFactor();
+ }
+ }
+ double GetTotalThickness() const { return _thickness; /*_nbHyps ? _thickness / _nbHyps : 0;*/ }
+ double GetStretchFactor() const { return _nbHyps ? _stretchFactor / _nbHyps : 0; }
+ int GetNumberLayers() const { return _nbLayers; }
+ private:
+ int _nbLayers, _nbHyps;
+ double _thickness, _stretchFactor;
+ };
- typedef map< const SMDS_MeshNode*, _LayerEdge*, TIDCompare > TNode2Edge;
-
//--------------------------------------------------------------------------------
/*!
* \brief Data of a SOLID
*/
struct _SolidData
{
+ typedef const StdMeshers_ViscousLayers* THyp;
TopoDS_Shape _solid;
- const StdMeshers_ViscousLayers* _hyp;
- TopoDS_Shape _hypShape;
+ TGeomID _index; // SOLID id
_MeshOfSolid* _proxyMesh;
- set<TGeomID> _reversedFaceIds;
- set<TGeomID> _ignoreFaceIds; // WOL FACEs and FACEs of other SOLIDS
+ list< THyp > _hyps;
+ list< TopoDS_Shape > _hypShapes;
+ map< TGeomID, THyp > _face2hyp; // filled if _hyps.size() > 1
+ 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
+ // iteration over the map is 5 times longer than over the vector
vector< _LayerEdge* > _edges;
// key: an id of shape (EDGE or VERTEX) shared by a FACE with
// Convex FACEs whose radius of curvature is less than the thickness of layers
map< TGeomID, _ConvexFace > _convexFaces;
- // FACE's WOL, srink on which is forbiden due to algo on the adjacent SOLID
- set< TGeomID > _noShrinkFaces;
+ // shapes (EDGEs and VERTEXes) srink from which is forbidden due to collisions with
+ // the adjacent SOLID
+ set< TGeomID > _noShrinkShapes;
// <EDGE to smooth on> to <it's curve> -- for analytic smooth
map< TGeomID,Handle(Geom_Curve)> _edge2curve;
// end indices in _edges of _LayerEdge on each shape, first go shapes to smooth
vector< int > _endEdgeOnShape;
int _nbShapesToSmooth;
+ set< TGeomID > _concaveFaces;
- double _epsilon; // precision for SegTriaInter()
+ // data of averaged StdMeshers_ViscousLayers parameters for each shape with _LayerEdge's
+ vector< AverageHyp > _hypOnShape;
+ double _maxThickness; // of all _hyps
+ double _minThickness; // of all _hyps
- int _index; // for debug
+ double _epsilon; // precision for SegTriaInter()
- _SolidData(const TopoDS_Shape& s=TopoDS_Shape(),
- const StdMeshers_ViscousLayers* h=0,
- const TopoDS_Shape& hs=TopoDS_Shape(),
- _MeshOfSolid* m=0)
- :_solid(s), _hyp(h), _hypShape(hs), _proxyMesh(m) {}
+ _SolidData(const TopoDS_Shape& s=TopoDS_Shape(),
+ _MeshOfSolid* m=0)
+ :_solid(s), _proxyMesh(m) {}
~_SolidData();
Handle(Geom_Curve) CurveForSmooth( const TopoDS_Edge& E,
const int iFrom,
const int iTo,
- Handle(Geom_Surface)& surface,
const TopoDS_Face& F,
- SMESH_MesherHelper& helper);
+ SMESH_MesherHelper& helper,
+ vector<_LayerEdge* >* edges=0);
void SortOnEdge( const TopoDS_Edge& E,
const int iFrom,
const int iTo,
SMESH_MesherHelper& helper);
+ void Sort2NeiborsOnEdge( const int iFrom, const int iTo);
+
_ConvexFace* GetConvexFace( const TGeomID faceID )
{
map< TGeomID, _ConvexFace >::iterator id2face = _convexFaces.find( faceID );
iEnd = _endEdgeOnShape[ end ];
}
- bool GetShapeEdges(const TGeomID shapeID, size_t& edgeEnd, int* iBeg=0, int* iEnd=0 ) const;
+ bool GetShapeEdges(const TGeomID shapeID, size_t& iEdgeEnd, int* iBeg=0, int* iEnd=0 ) const;
void AddShapesToSmooth( const set< TGeomID >& shapeIDs );
+
+ void PrepareEdgesToSmoothOnFace( _LayerEdge** edgeBeg,
+ _LayerEdge** edgeEnd,
+ const TopoDS_Face& face,
+ bool substituteSrcNodes );
};
//--------------------------------------------------------------------------------
/*!
// does it's job
SMESH_ComputeErrorPtr Compute(SMESH_Mesh& mesh,
const TopoDS_Shape& shape);
+ // check validity of hypotheses
+ SMESH_ComputeErrorPtr CheckHypotheses( SMESH_Mesh& mesh,
+ const TopoDS_Shape& shape );
// restore event listeners used to clear an inferior dim sub-mesh modified by viscous layers
void RestoreListeners();
private:
bool findSolidsWithLayers();
- bool findFacesWithLayers();
+ bool findFacesWithLayers(const bool onlyWith=false);
+ void getIgnoreFaces(const TopoDS_Shape& solid,
+ const StdMeshers_ViscousLayers* hyp,
+ const TopoDS_Shape& hypShape,
+ set<TGeomID>& ignoreFaces);
bool makeLayer(_SolidData& data);
bool setEdgeData(_LayerEdge& edge, const set<TGeomID>& subIds,
SMESH_MesherHelper& helper, _SolidData& data);
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 getFaceNormalAtSingularity(const gp_XY& uv,
+ const TopoDS_Face& face,
+ SMESH_MesherHelper& helper,
+ gp_Dir& normal );
+ gp_XYZ getWeigthedNormal( const SMDS_MeshNode* n,
+ std::pair< TopoDS_Face, gp_XYZ > fId2Normal[],
+ int nbFaces );
bool findNeiborsOnEdge(const _LayerEdge* edge,
const SMDS_MeshNode*& n1,
const SMDS_MeshNode*& n2,
_SolidData& data);
- void getSimplices( const SMDS_MeshNode* node, vector<_Simplex>& simplices,
- 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 );
bool prepareEdgeToShrink( _LayerEdge& edge, const TopoDS_Face& F,
SMESH_MesherHelper& helper,
const SMESHDS_SubMesh* faceSubMesh );
+ void restoreNoShrink( _LayerEdge& edge ) const;
void fixBadFaces(const TopoDS_Face& F,
SMESH_MesherHelper& helper,
const bool is2D,
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();
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 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()));}
};
return _surface->Value( uv.X(), uv.Y() ).XYZ();
}
};
+
} // namespace VISCOUS_3D
return SMESH_ProxyMesh::Ptr();
components.push_back( SMESH_ProxyMesh::Ptr( pm ));
pm->myIsDeletable = false; // it will de deleted by boost::shared_ptr
+
+ if ( pm->_warning && !pm->_warning->IsOK() )
+ {
+ SMESH_subMesh* sm = theMesh.GetSubMesh( exp.Current() );
+ SMESH_ComputeErrorPtr& smError = sm->GetComputeError();
+ if ( !smError || smError->IsOK() )
+ smError = pm->_warning;
+ }
}
_ViscousListener::RemoveSolidMesh ( &theMesh, exp.Current() );
}
{
// TODO
return false;
+} // --------------------------------------------------------------------------------
+SMESH_ComputeErrorPtr
+StdMeshers_ViscousLayers::CheckHypothesis(SMESH_Mesh& theMesh,
+ const TopoDS_Shape& theShape,
+ SMESH_Hypothesis::Hypothesis_Status& theStatus)
+{
+ VISCOUS_3D::_ViscousBuilder bulder;
+ SMESH_ComputeErrorPtr err = bulder.CheckHypotheses( theMesh, theShape );
+ if ( err && !err->IsOK() )
+ theStatus = SMESH_Hypothesis::HYP_INCOMPAT_HYPS;
+ else
+ theStatus = SMESH_Hypothesis::HYP_OK;
+
+ return err;
+}
+// --------------------------------------------------------------------------------
+bool StdMeshers_ViscousLayers::IsShapeWithLayers(int shapeIndex) const
+{
+ bool isIn =
+ ( std::find( _shapeIds.begin(), _shapeIds.end(), shapeIndex ) != _shapeIds.end() );
+ return IsToIgnoreShapes() ? !isIn : isIn;
}
// END StdMeshers_ViscousLayers hypothesis
//================================================================================
-namespace
+namespace VISCOUS_3D
{
gp_XYZ getEdgeDir( const TopoDS_Edge& E, const TopoDS_Vertex& fromV )
{
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);
//--------------------------------------------------------------------------------
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 );
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;
- nbEdges++;
}
else if ( VV[0].IsSame( fromV )) {
+ nbEdges += edges[ 1 ].IsNull();
edges[ 1 ] = e;
- nbEdges++;
}
}
}
// get angle between the 2 edges
gp_Vec faceNormal;
- double angle = helper.GetAngle( edges[0], edges[1], faceFrw, &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 if ( nbEdges == 1 )
{
- dir = getFaceDir( faceFrw, edges[0], node, helper, ok );
+ dir = getFaceDir( faceFrw, edges[ edges[0].IsNull() ], node, helper, ok );
if ( cosin ) *cosin = 1.;
}
else
return dir;
}
+
+ //================================================================================
+ /*!
+ * \brief Finds concave VERTEXes of a FACE
+ */
+ //================================================================================
+
+ bool getConcaveVertices( const TopoDS_Face& F,
+ SMESH_MesherHelper& helper,
+ set< TGeomID >* vertices = 0)
+ {
+ // check angles at VERTEXes
+ TError error;
+ TSideVector wires = StdMeshers_FaceSide::GetFaceWires( F, *helper.GetMesh(), 0, error );
+ for ( size_t iW = 0; iW < wires.size(); ++iW )
+ {
+ const int nbEdges = wires[iW]->NbEdges();
+ if ( nbEdges < 2 && SMESH_Algo::isDegenerated( wires[iW]->Edge(0)))
+ continue;
+ for ( int iE1 = 0; iE1 < nbEdges; ++iE1 )
+ {
+ if ( SMESH_Algo::isDegenerated( wires[iW]->Edge( iE1 ))) continue;
+ int iE2 = ( iE1 + 1 ) % nbEdges;
+ while ( SMESH_Algo::isDegenerated( wires[iW]->Edge( iE2 )))
+ iE2 = ( iE2 + 1 ) % nbEdges;
+ TopoDS_Vertex V = wires[iW]->FirstVertex( iE2 );
+ double angle = helper.GetAngle( wires[iW]->Edge( iE1 ),
+ wires[iW]->Edge( iE2 ), F, V );
+ if ( angle < -5. * M_PI / 180. )
+ {
+ if ( !vertices )
+ return true;
+ vertices->insert( helper.GetMeshDS()->ShapeToIndex( V ));
+ }
+ }
+ }
+ return vertices ? !vertices->empty() : false;
+ }
+
//================================================================================
/*!
* \brief Returns true if a FACE is bound by a concave EDGE
*/
//================================================================================
- bool isConcave( const TopoDS_Face& F, SMESH_MesherHelper& helper )
+ bool isConcave( const TopoDS_Face& F,
+ SMESH_MesherHelper& helper,
+ set< TGeomID >* vertices = 0 )
{
+ bool isConcv = false;
// if ( helper.Count( F, TopAbs_WIRE, /*useMap=*/false) > 1 )
// return true;
gp_Vec2d drv1, drv2;
if ( !isConvex )
{
//cout << "Concave FACE " << helper.GetMeshDS()->ShapeToIndex( F ) << endl;
- return true;
+ isConcv = true;
+ if ( vertices )
+ break;
+ else
+ return true;
}
}
+
// check angles at VERTEXes
- TError error;
- TSideVector wires = StdMeshers_FaceSide::GetFaceWires( F, *helper.GetMesh(), 0, error );
- for ( size_t iW = 0; iW < wires.size(); ++iW )
- {
- const int nbEdges = wires[iW]->NbEdges();
- if ( nbEdges < 2 && SMESH_Algo::isDegenerated( wires[iW]->Edge(0)))
- continue;
- for ( int iE1 = 0; iE1 < nbEdges; ++iE1 )
+ if ( getConcaveVertices( F, helper, vertices ))
+ isConcv = true;
+
+ return isConcv;
+ }
+
+ //================================================================================
+ /*!
+ * \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() )
{
- if ( SMESH_Algo::isDegenerated( wires[iW]->Edge( iE1 ))) continue;
- int iE2 = ( iE1 + 1 ) % nbEdges;
- 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 );
- if ( angle < -5. * M_PI / 180. )
- return true;
+ // 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 false;
+ return done;
+ }
+ //================================================================================
+ /*!
+ * \brief Return direction of axis or revolution of a surface
+ */
+ //================================================================================
+
+ bool getRovolutionAxis( const Adaptor3d_Surface& surface,
+ gp_Dir & axis )
+ {
+ switch ( surface.GetType() ) {
+ case GeomAbs_Cone:
+ {
+ gp_Cone cone = surface.Cone();
+ axis = cone.Axis().Direction();
+ break;
+ }
+ case GeomAbs_Sphere:
+ {
+ gp_Sphere sphere = surface.Sphere();
+ axis = sphere.Position().Direction();
+ break;
+ }
+ case GeomAbs_SurfaceOfRevolution:
+ {
+ axis = surface.AxeOfRevolution().Direction();
+ break;
+ }
+ //case GeomAbs_SurfaceOfExtrusion:
+ case GeomAbs_OffsetSurface:
+ {
+ Handle(Adaptor3d_HSurface) base = surface.BasisSurface();
+ return getRovolutionAxis( base->Surface(), axis );
+ }
+ default: return false;
+ }
+ return true;
}
+
//--------------------------------------------------------------------------------
// 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;
+ int theNbPyFunc;
struct PyDump {
- PyDump() {
+ PyDump(SMESH_Mesh& m) {
+ int tag = 3 + m.GetId();
const char* fname = "/tmp/viscous.py";
cout << "execfile('"<<fname<<"')"<<endl;
py = new ofstream(fname);
*py << "import SMESH" << endl
<< "from salome.smesh import smeshBuilder" << endl
<< "smesh = smeshBuilder.New(salome.myStudy)" << endl
- << "meshSO = smesh.GetCurrentStudy().FindObjectID('0:1:2:3')" << endl
+ << "meshSO = smesh.GetCurrentStudy().FindObjectID('0:1:2:" << tag <<"')" << endl
<< "mesh = smesh.Mesh( meshSO.GetObject() )"<<endl;
- theNbFunc = 0;
+ theNbPyFunc = 0;
}
void Finish() {
if (py) {
}
delete py; py=0;
}
- ~PyDump() { Finish(); cout << "NB FUNCTIONS: " << theNbFunc << endl; }
+ ~PyDump() { Finish(); cout << "NB FUNCTIONS: " << theNbPyFunc << endl; }
};
#define dumpFunction(f) { _dumpFunction(f, __LINE__);}
#define dumpMove(n) { _dumpMove(n, __LINE__);}
+#define dumpMoveComm(n,txt) { _dumpMove(n, __LINE__, txt);}
#define dumpCmd(txt) { _dumpCmd(txt, __LINE__);}
void _dumpFunction(const string& fun, int ln)
- { if (py) *py<< "def "<<fun<<"(): # "<< ln <<endl; cout<<fun<<"()"<<endl; ++theNbFunc; }
- void _dumpMove(const SMDS_MeshNode* n, int ln)
+ { if (py) *py<< "def "<<fun<<"(): # "<< ln <<endl; cout<<fun<<"()"<<endl; ++theNbPyFunc; }
+ void _dumpMove(const SMDS_MeshNode* n, int ln, const char* txt="")
{ if (py) *py<< " mesh.MoveNode( "<<n->GetID()<< ", "<< n->X()
- << ", "<<n->Y()<<", "<< n->Z()<< ")\t\t # "<< ln <<endl; }
+ << ", "<<n->Y()<<", "<< n->Z()<< ")\t\t # "<< ln <<" "<< txt << endl; }
void _dumpCmd(const string& txt, int ln)
{ if (py) *py<< " "<<txt<<" # "<< ln <<endl; }
void dumpFunctionEnd()
*py << f->GetNode( f->NbNodes()-1 )->GetID() << " ])"<< endl; }}
#define debugMsg( txt ) { cout << txt << " (line: " << __LINE__ << ")" << endl; }
#else
- struct PyDump { void Finish() {} };
+ struct PyDump { PyDump(SMESH_Mesh&) {} void Finish() {} };
#define dumpFunction(f) f
#define dumpMove(n)
+#define dumpMoveComm(n,txt)
#define dumpCmd(txt)
#define dumpFunctionEnd()
#define dumpChangeNodes(f)
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 ( _ViscousListener::GetSolidMesh( _mesh, exp.Current(), /*toCreate=*/false))
return SMESH_ComputeErrorPtr(); // everything already computed
- PyDump debugDump;
+ PyDump debugDump( theMesh );
// TODO: ignore already computed SOLIDs
if ( !findSolidsWithLayers())
return _error;
}
+//================================================================================
+/*!
+ * \brief Check validity of hypotheses
+ */
+//================================================================================
+
+SMESH_ComputeErrorPtr _ViscousBuilder::CheckHypotheses( SMESH_Mesh& mesh,
+ const TopoDS_Shape& shape )
+{
+ _mesh = & mesh;
+
+ if ( _ViscousListener::GetSolidMesh( _mesh, shape, /*toCreate=*/false))
+ return SMESH_ComputeErrorPtr(); // everything already computed
+
+
+ findSolidsWithLayers();
+ bool ok = findFacesWithLayers();
+
+ // remove _MeshOfSolid's of _SolidData's
+ for ( size_t i = 0; i < _sdVec.size(); ++i )
+ _ViscousListener::RemoveSolidMesh( _mesh, _sdVec[i]._solid );
+
+ if ( !ok )
+ return _error;
+
+ return SMESH_ComputeErrorPtr();
+}
+
//================================================================================
/*!
* \brief Finds SOLIDs to compute using viscous layers. Fills _sdVec
// TODO: check if algo is hidden
const list <const SMESHDS_Hypothesis *> & allHyps =
algo->GetUsedHypothesis(*_mesh, allSolids(i), /*ignoreAuxiliary=*/false);
+ _SolidData* soData = 0;
list< const SMESHDS_Hypothesis *>::const_iterator hyp = allHyps.begin();
const StdMeshers_ViscousLayers* viscHyp = 0;
- for ( ; hyp != allHyps.end() && !viscHyp; ++hyp )
- viscHyp = dynamic_cast<const StdMeshers_ViscousLayers*>( *hyp );
- if ( viscHyp )
- {
- TopoDS_Shape hypShape;
- filter.Init( filter.Is( viscHyp ));
- _mesh->GetHypothesis( allSolids(i), filter, true, &hypShape );
+ for ( ; hyp != allHyps.end(); ++hyp )
+ if ( viscHyp = dynamic_cast<const StdMeshers_ViscousLayers*>( *hyp ))
+ {
+ 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, hypShape, proxyMesh ));
- _sdVec.back()._index = getMeshDS()->ShapeToIndex( allSolids(i));
- }
+ if ( !soData )
+ {
+ _MeshOfSolid* proxyMesh = _ViscousListener::GetSolidMesh( _mesh,
+ allSolids(i),
+ /*toCreate=*/true);
+ _sdVec.push_back( _SolidData( allSolids(i), proxyMesh ));
+ soData = & _sdVec.back();
+ soData->_index = getMeshDS()->ShapeToIndex( allSolids(i));
+ }
+ soData->_hyps.push_back( viscHyp );
+ soData->_hypShapes.push_back( hypShape );
+ }
}
if ( _sdVec.empty() )
return error
*/
//================================================================================
-bool _ViscousBuilder::findFacesWithLayers()
+bool _ViscousBuilder::findFacesWithLayers(const bool onlyWith)
{
SMESH_MesherHelper helper( *_mesh );
TopExp_Explorer exp;
{
solids.Add( _sdVec[i]._solid );
- vector<TGeomID> ids = _sdVec[i]._hyp->GetBndShapes();
- if ( _sdVec[i]._hyp->IsToIgnoreShapes() ) // FACEs to ignore are given
+ // get faces to ignore defined by each hyp
+ typedef const StdMeshers_ViscousLayers* THyp;
+ typedef std::pair< set<TGeomID>, THyp > TFacesOfHyp;
+ list< TFacesOfHyp > ignoreFacesOfHyps;
+ list< THyp >::iterator hyp = _sdVec[i]._hyps.begin();
+ list< TopoDS_Shape >::iterator hypShape = _sdVec[i]._hypShapes.begin();
+ for ( ; hyp != _sdVec[i]._hyps.end(); ++hyp, ++hypShape )
{
- for ( size_t ii = 0; ii < ids.size(); ++ii )
- {
- const TopoDS_Shape& s = getMeshDS()->IndexToShape( ids[ii] );
- if ( !s.IsNull() && s.ShapeType() == TopAbs_FACE )
- _sdVec[i]._ignoreFaceIds.insert( ids[ii] );
- }
+ ignoreFacesOfHyps.push_back( TFacesOfHyp( set<TGeomID>(), *hyp ));
+ getIgnoreFaces( _sdVec[i]._solid, *hyp, *hypShape, ignoreFacesOfHyps.back().first );
}
- else // FACEs with layers are given
+
+ // fill _SolidData::_face2hyp and check compatibility of hypotheses
+ const int nbHyps = _sdVec[i]._hyps.size();
+ if ( nbHyps > 1 )
{
- exp.Init( _sdVec[i]._solid, TopAbs_FACE );
- for ( ; exp.More(); exp.Next() )
+ // check if two hypotheses define different parameters for the same FACE
+ list< TFacesOfHyp >::iterator igFacesOfHyp;
+ for ( exp.Init( _sdVec[i]._solid, TopAbs_FACE ); exp.More(); exp.Next() )
{
- TGeomID faceInd = getMeshDS()->ShapeToIndex( exp.Current() );
- if ( find( ids.begin(), ids.end(), faceInd ) == ids.end() )
- _sdVec[i]._ignoreFaceIds.insert( faceInd );
+ const TGeomID faceID = getMeshDS()->ShapeToIndex( exp.Current() );
+ THyp hyp = 0;
+ igFacesOfHyp = ignoreFacesOfHyps.begin();
+ for ( ; igFacesOfHyp != ignoreFacesOfHyps.end(); ++igFacesOfHyp )
+ if ( ! igFacesOfHyp->first.count( faceID ))
+ {
+ if ( hyp )
+ return error(SMESH_Comment("Several hypotheses define "
+ "Viscous Layers on the face #") << faceID );
+ hyp = igFacesOfHyp->second;
+ }
+ if ( hyp )
+ _sdVec[i]._face2hyp.insert( make_pair( faceID, hyp ));
+ else
+ _sdVec[i]._ignoreFaceIds.insert( faceID );
}
- }
-
- // ignore internal FACEs if inlets and outlets are specified
- {
- 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() )
+ // check if two hypotheses define different number of viscous layers for
+ // adjacent faces of a solid
+ set< int > nbLayersSet;
+ igFacesOfHyp = ignoreFacesOfHyps.begin();
+ for ( ; igFacesOfHyp != ignoreFacesOfHyps.end(); ++igFacesOfHyp )
{
- 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() )
+ nbLayersSet.insert( igFacesOfHyp->second->GetNumberLayers() );
+ }
+ if ( nbLayersSet.size() > 1 )
+ {
+ for ( exp.Init( _sdVec[i]._solid, TopAbs_EDGE ); exp.More(); exp.Next() )
{
- int nbSolids = solidsOfFace.FindFromKey( face ).Extent();
- if ( nbSolids > 1 )
- _sdVec[i]._ignoreFaceIds.insert( faceInd );
+ PShapeIteratorPtr fIt = helper.GetAncestors( exp.Current(), *_mesh, TopAbs_FACE );
+ THyp hyp1 = 0, hyp2 = 0;
+ while( const TopoDS_Shape* face = fIt->next() )
+ {
+ const TGeomID faceID = getMeshDS()->ShapeToIndex( *face );
+ map< TGeomID, THyp >::iterator f2h = _sdVec[i]._face2hyp.find( faceID );
+ if ( f2h != _sdVec[i]._face2hyp.end() )
+ {
+ ( hyp1 ? hyp2 : hyp1 ) = f2h->second;
+ }
+ }
+ if ( hyp1 && hyp2 &&
+ hyp1->GetNumberLayers() != hyp2->GetNumberLayers() )
+ {
+ return error("Two hypotheses define different number of "
+ "viscous layers on adjacent faces");
+ }
}
+ }
+ } // if ( nbHyps > 1 )
+ else
+ {
+ _sdVec[i]._ignoreFaceIds.swap( ignoreFacesOfHyps.back().first );
+ }
+ } // loop on _sdVec
- if ( helper.IsReversedSubMesh( face ))
- {
- _sdVec[i]._reversedFaceIds.insert( faceInd );
- }
+ if ( onlyWith ) // is called to check hypotheses compatibility only
+ return true;
+
+ // fill _SolidData::_reversedFaceIds
+ for ( size_t i = 0; i < _sdVec.size(); ++i )
+ {
+ exp.Init( _sdVec[i]._solid.Oriented( TopAbs_FORWARD ), TopAbs_FACE );
+ for ( ; exp.More(); exp.Next() )
+ {
+ const TopoDS_Face& face = TopoDS::Face( exp.Current() );
+ const TGeomID faceID = getMeshDS()->ShapeToIndex( face );
+ if ( //!sdVec[i]._ignoreFaceIds.count( faceID ) &&
+ helper.NbAncestors( face, *_mesh, TopAbs_SOLID ) > 1 &&
+ helper.IsReversedSubMesh( face ))
+ {
+ _sdVec[i]._reversedFaceIds.insert( faceID );
}
}
}
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 iFace = getMeshDS()->ShapeToIndex( fWOL );
if ( iSolid > 0 && !_sdVec[ iSolid-1 ]._ignoreFaceIds.count( iFace ))
{
- _sdVec[i]._noShrinkFaces.insert( iFace );
- fWOL.Nullify();
+ //_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 ( 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 );
+ }
}
}
}
set< string > notSupportAlgos; notSupportAlgos.insert("Hexa_3D");
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 ( size_t 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++;
- }
- }
- }
-
- // Find the SHAPE along which to inflate _LayerEdge based on VERTEX
-
- for ( size_t i = 0; i < _sdVec.size(); ++i )
- {
+ 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 ( size_t i = 0; i < _sdVec.size(); ++i )
+ {
shapes.Clear();
TopExp::MapShapes(_sdVec[i]._solid, TopAbs_VERTEX, shapes);
for ( int iV = 1; iV <= shapes.Extent(); ++iV )
{
totalNbFaces++;
const int fID = getMeshDS()->ShapeToIndex( *f );
- if ( _sdVec[i]._ignoreFaceIds.count ( fID ) &&
- !_sdVec[i]._noShrinkFaces.count( fID ))
+ if ( _sdVec[i]._ignoreFaceIds.count ( fID ) /*&&
+ !_sdVec[i]._noShrinkShapes.count( fID )*/)
facesWOL.push_back( *f );
}
}
return true;
}
+//================================================================================
+/*!
+ * \brief Finds FACEs w/o layers for a given SOLID by an hypothesis
+ */
+//================================================================================
+
+void _ViscousBuilder::getIgnoreFaces(const TopoDS_Shape& solid,
+ const StdMeshers_ViscousLayers* hyp,
+ const TopoDS_Shape& hypShape,
+ set<TGeomID>& ignoreFaceIds)
+{
+ TopExp_Explorer exp;
+
+ vector<TGeomID> ids = hyp->GetBndShapes();
+ if ( hyp->IsToIgnoreShapes() ) // FACEs to ignore are given
+ {
+ for ( size_t ii = 0; ii < ids.size(); ++ii )
+ {
+ const TopoDS_Shape& s = getMeshDS()->IndexToShape( ids[ii] );
+ if ( !s.IsNull() && s.ShapeType() == TopAbs_FACE )
+ ignoreFaceIds.insert( ids[ii] );
+ }
+ }
+ else // FACEs with layers are given
+ {
+ exp.Init( solid, TopAbs_FACE );
+ for ( ; exp.More(); exp.Next() )
+ {
+ TGeomID faceInd = getMeshDS()->ShapeToIndex( exp.Current() );
+ if ( find( ids.begin(), ids.end(), faceInd ) == ids.end() )
+ ignoreFaceIds.insert( faceInd );
+ }
+ }
+
+ // ignore internal FACEs if inlets and outlets are specified
+ if ( hyp->IsToIgnoreShapes() )
+ {
+ TopTools_IndexedDataMapOfShapeListOfShape solidsOfFace;
+ TopExp::MapShapesAndAncestors( hypShape,
+ TopAbs_FACE, TopAbs_SOLID, solidsOfFace);
+
+ for ( exp.Init( solid, TopAbs_FACE ); exp.More(); exp.Next() )
+ {
+ const TopoDS_Face& face = TopoDS::Face( exp.Current() );
+ if ( SMESH_MesherHelper::NbAncestors( face, *_mesh, TopAbs_SOLID ) < 2 )
+ continue;
+
+ int nbSolids = solidsOfFace.FindFromKey( face ).Extent();
+ if ( nbSolids > 1 )
+ ignoreFaceIds.insert( getMeshDS()->ShapeToIndex( face ));
+ }
+ }
+}
+
//================================================================================
/*!
* \brief Create the inner surface of the viscous layer and prepare data for infation
{
// 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() )
+ {
+ SMESH_subMesh* fSubM = _mesh->GetSubMesh( exp.Current() );
+ if ( ! data._ignoreFaceIds.count( fSubM->GetId() ))
{
- SMESH_subMesh* fSubM = _mesh->GetSubMesh( exp.Current() );
- if ( ! data._ignoreFaceIds.count( getMeshDS()->ShapeToIndex( exp.Current() )))
- faceIds.insert( fSubM->GetId() );
- SMESH_subMeshIteratorPtr subIt =
- fSubM->getDependsOnIterator(/*includeSelf=*/true, /*complexShapeFirst=*/false);
+ 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* >::iterator s2ne;
// Create temporary faces and _LayerEdge's
- dumpFunction(SMESH_Comment("makeLayers_")<<data._index);
+ dumpFunction(SMESH_Comment("makeLayers_")<<data._index);
data._stepSize = Precision::Infinite();
data._stepSizeNodes[0] = 0;
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;
- _LayerEdge* maxCosinEdge = 0;
- 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 = data._s2neMap.find( shapeID )) != data._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;
gp_XYZ lastPos = edge->Copy( *foundEdge, helper );
}
else
{
- edge->_nodes.push_back( helper.AddNode( xyz.X(), xyz.Y(), xyz.Z() ));
+ if ( !noShrink )
+ {
+ edge->_nodes.push_back( helper.AddNode( xyz.X(), xyz.Y(), xyz.Z() ));
+ }
if ( !setEdgeData( *edge, subIds, helper, data ))
return false;
}
}
}
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, face->getshapeId() );
// compute inflation step size by min size of element on a convex surface
if ( faceMaxCosin > theMinSmoothCosin )
limitStepSize( data, face, maxCosinEdge );
+
} // loop on 2D elements on a FACE
} // loop on FACEs of a SOLID
// 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 _2NearEdges of _LayerEdge's
+ // Set target nodes into _Simplex and _LayerEdge's to _2NearEdges
TNode2Edge::iterator n2e;
+ const SMDS_MeshNode* nn[2];
for ( size_t i = 0; i < data._edges.size(); ++i )
{
- if ( data._edges[i]->IsOnEdge())
+ _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
+ {
+ nn[0] = edge->_2neibors->srcNode(0);
+ nn[1] = edge->_2neibors->srcNode(1);
+ }
+ else if ( !findNeiborsOnEdge( edge, nn[0],nn[1], data ))
+ {
+ return false;
+ }
+ // set neighbor _LayerEdge's
for ( int j = 0; j < 2; ++j )
{
- 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() )
+ if (( n2e = data._n2eMap.find( nn[j] )) == 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;
+ edge->_2neibors->_edges[j] = n2e->second;
}
- //else
- for ( size_t j = 0; j < data._edges[i]->_simplices.size(); ++j )
+ if ( !hasData )
+ edge->SetDataByNeighbors( nn[0], nn[1], helper);
+ }
+
+ for ( size_t j = 0; j < edge->_simplices.size(); ++j )
{
- _Simplex& s = data._edges[i]->_simplices[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;
+ }
}
+ // fix _LayerEdge::_2neibors on EDGEs to smooth
+ map< TGeomID,Handle(Geom_Curve)>::iterator e2c = data._edge2curve.begin();
+ for ( ; e2c != data._edge2curve.end(); ++e2c )
+ if ( !e2c->second.IsNull() )
+ {
+ size_t iEdgeEnd; int iBeg, iEnd;
+ if ( data.GetShapeEdges( e2c->first, iEdgeEnd, &iBeg, &iEnd ))
+ data.Sort2NeiborsOnEdge( iBeg, iEnd );
+ }
+
dumpFunctionEnd();
return true;
}
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 );
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 );
int iBeg, iEnd;
_ConvexFace cnvFace;
- SMESH_subMesh * sm = _mesh->GetSubMesh( F );
- const TGeomID faceID = sm->GetId();
- if ( data._ignoreFaceIds.count( faceID )) continue;
const double oriFactor = ( F.Orientation() == TopAbs_REVERSED ? +1. : -1. );
SMESH_subMeshIteratorPtr smIt = sm->getDependsOnIterator(/*includeSelf=*/true);
while ( smIt->more() )
else
continue;
// check concavity and curvature and limit data._stepSize
+ const double minCurvature =
+ 1. / ( data._hypOnShape[ edgesEnd ].GetTotalThickness() * ( 1+theThickToIntersection ));
int nbLEdges = iEnd - iBeg;
- int step = Max( 1, nbLEdges / nbTestPnt );
- for ( ; iBeg < iEnd; iBeg += step )
+ 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() );
const SMDS_MeshNode* srcNode = ledge->_nodes[0];
if ( !usedNodes.insert( srcNode ).second ) continue;
- getSimplices( srcNode, ledge->_simplices, data._ignoreFaceIds, &data );
+ _Simplex::GetSimplices( srcNode, ledge->_simplices, data._ignoreFaceIds, &data );
for ( size_t i = 0; i < ledge->_simplices.size(); ++i )
{
usedNodes.insert( ledge->_simplices[i]._nPrev );
bool _ViscousBuilder::sortEdges( _SolidData& data,
vector< vector<_LayerEdge*> >& edgesByGeom)
{
+ // define allowed thickness
+ computeGeomSize( data ); // compute data._geomSize
+
+ data._maxThickness = 0;
+ data._minThickness = 1e100;
+ list< const StdMeshers_ViscousLayers* >::iterator hyp = data._hyps.begin();
+ for ( ; hyp != data._hyps.end(); ++hyp )
+ {
+ data._maxThickness = Max( data._maxThickness, (*hyp)->GetTotalThickness() );
+ data._minThickness = Min( data._minThickness, (*hyp)->GetTotalThickness() );
+ }
+ const double tgtThick = /*Min( 0.5 * data._geomSize, */data._maxThickness;
+
// 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;
-
+ TopTools_MapOfShape edgesOfSmooFaces;
+
SMESH_MesherHelper helper( *_mesh );
bool ok = true;
- for ( size_t iS = 0; iS < edgesByGeom.size(); ++iS )
+ for ( int isEdge = 0; isEdge < 2; ++isEdge ) // loop on [ FACEs, EDGEs ]
{
- vector<_LayerEdge*>& eS = edgesByGeom[iS];
- if ( eS.empty() ) continue;
- const TopoDS_Shape& S = getMeshDS()->IndexToShape( iS );
- bool needSmooth = false;
- switch ( S.ShapeType() )
+ const int dim = isEdge ? 1 : 2;
+
+ for ( size_t iS = 0; iS < edgesByGeom.size(); ++iS )
{
- case TopAbs_EDGE: {
-
- 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 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 );
- // }
- gp_Vec eDir = getEdgeDir( TopoDS::Edge( S ), TopoDS::Vertex( vIt.Value() ));
- double angle = eDir.Angle( eV[0]->_normal );
- double cosin = Cos( angle );
- needSmooth = ( cosin > theMinSmoothCosin );
- }
- break;
- }
- case TopAbs_FACE: {
+ vector<_LayerEdge*>& eS = edgesByGeom[iS];
+ if ( eS.empty() ) continue;
+ if ( eS[0]->_nodes[0]->GetPosition()->GetDim() != dim ) continue;
- for ( TopExp_Explorer eExp( S, TopAbs_EDGE ); eExp.More() && !needSmooth; eExp.Next() )
+ const TopoDS_Shape& S = getMeshDS()->IndexToShape( iS );
+ bool needSmooth = false;
+ switch ( S.ShapeType() )
{
- TGeomID iE = getMeshDS()->ShapeToIndex( eExp.Current() );
- vector<_LayerEdge*>& eE = edgesByGeom[ iE ];
- if ( eE.empty() ) continue;
- if ( eE[0]->_sWOL.IsNull() )
+ case TopAbs_EDGE: {
+
+ const TopoDS_Edge& E = TopoDS::Edge( S );
+ if ( SMESH_Algo::isDegenerated( E ) || !edgesOfSmooFaces.Contains( E ))
+ break;
+
+ TopoDS_Face F;
+ if ( !eS[0]->_sWOL.IsNull() && eS[0]->_sWOL.ShapeType() == TopAbs_FACE )
+ F = TopoDS::Face( eS[0]->_sWOL );
+
+ for ( TopoDS_Iterator vIt( S ); vIt.More() && !needSmooth; vIt.Next() )
{
- for ( size_t i = 0; i < eE.size() && !needSmooth; ++i )
- needSmooth = ( eE[i]->_cosin > theMinSmoothCosin );
+ TGeomID iV = getMeshDS()->ShapeToIndex( vIt.Value() );
+ vector<_LayerEdge*>& eV = edgesByGeom[ iV ];
+ if ( eV.empty() ) continue;
+ gp_Vec eDir = getEdgeDir( TopoDS::Edge( S ), TopoDS::Vertex( vIt.Value() ));
+ double angle = eDir.Angle( eV[0]->_normal );
+ double cosin = Cos( angle );
+ double cosinAbs = Abs( cosin );
+ if ( cosinAbs > theMinSmoothCosin )
+ {
+ // always smooth analytic EDGEs
+ needSmooth = ! data.CurveForSmooth( E, 0, eS.size(), F, helper, &eS ).IsNull();
+
+ // compare tgtThick with the length of an end segment
+ SMDS_ElemIteratorPtr eIt = eV[0]->_nodes[0]->GetInverseElementIterator(SMDSAbs_Edge);
+ while ( eIt->more() && !needSmooth )
+ {
+ const SMDS_MeshElement* endSeg = eIt->next();
+ if ( endSeg->getshapeId() == iS )
+ {
+ double segLen =
+ SMESH_TNodeXYZ( endSeg->GetNode(0) ).Distance( endSeg->GetNode(1 ));
+ needSmooth = needSmoothing( cosinAbs, tgtThick, segLen );
+ }
+ }
+ }
}
- else
+ break;
+ }
+ case TopAbs_FACE: {
+
+ for ( TopExp_Explorer eExp( S, TopAbs_EDGE ); eExp.More() && !needSmooth; eExp.Next() )
{
- 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 )
+ TGeomID iE = getMeshDS()->ShapeToIndex( eExp.Current() );
+ vector<_LayerEdge*>& eE = edgesByGeom[ iE ];
+ if ( eE.empty() ) continue;
+ // 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() )
{
- 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 > theMinSmoothCosin );
+ 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 );
+ // }
+ // }
+ }
+ if ( needSmooth )
+ for ( TopExp_Explorer eExp( S, TopAbs_EDGE ); eExp.More(); eExp.Next() )
+ edgesOfSmooFaces.Add( eExp.Current() );
+
+ break;
+ }
+ case TopAbs_VERTEX:
+ continue;
+ default:;
+ }
+
+ if ( needSmooth )
+ {
+ if ( S.ShapeType() == TopAbs_EDGE ) shapesToSmooth.push_front( iS );
+ else shapesToSmooth.push_back ( iS );
+
+ // preparation for smoothing
+ if ( S.ShapeType() == TopAbs_FACE )
+ {
+ data.PrepareEdgesToSmoothOnFace( & eS[0],
+ & eS[0] + eS.size(),
+ TopoDS::Face( S ),
+ /*substituteSrcNodes=*/false);
}
}
- break;
- }
- case TopAbs_VERTEX:
- continue;
- default:;
- }
- if ( needSmooth )
- {
- if ( S.ShapeType() == TopAbs_EDGE ) shapesToSmooth.push_front( iS );
- else shapesToSmooth.push_back ( iS );
- }
- } // loop on edgesByGeom
+ } // loop on edgesByGeom
+ } // // loop on [ FACEs, EDGEs ]
data._edges.reserve( data._n2eMap.size() );
data._endEdgeOnShape.clear();
//eVec.clear();
}
+ // compute average StdMeshers_ViscousLayers parameters for each shape
+
+ data._hypOnShape.clear();
+ if ( data._hyps.size() == 1 )
+ {
+ data._hypOnShape.resize( data._endEdgeOnShape.size(), AverageHyp( data._hyps.back() ));
+ }
+ else
+ {
+ data._hypOnShape.resize( data._endEdgeOnShape.size() );
+ map< TGeomID, const StdMeshers_ViscousLayers* >::iterator f2hyp;
+ for ( size_t i = 0; i < data._endEdgeOnShape.size(); ++i )
+ {
+ int iEnd = data._endEdgeOnShape[i];
+ _LayerEdge* LE = data._edges[ iEnd-1 ];
+ TGeomID iShape = LE->_nodes[0]->getshapeId();
+ const TopoDS_Shape& S = getMeshDS()->IndexToShape( iShape );
+ if ( S.ShapeType() == TopAbs_FACE )
+ {
+ if (( f2hyp = data._face2hyp.find( iShape )) != data._face2hyp.end() )
+ {
+ data._hypOnShape[ i ].Add( f2hyp->second );
+ }
+ }
+ else
+ {
+ PShapeIteratorPtr fIt = SMESH_MesherHelper::GetAncestors( S, *_mesh, TopAbs_FACE );
+ while ( const TopoDS_Shape* face = fIt->next() )
+ {
+ TGeomID faceID = getMeshDS()->ShapeToIndex( *face );
+ if (( f2hyp = data._face2hyp.find( faceID )) != data._face2hyp.end() )
+ {
+ data._hypOnShape[ i ].Add( f2hyp->second );
+ }
+ }
+ }
+ }
+ }
+
return ok;
}
SMESH_MeshEditor editor(_mesh);
const SMDS_MeshNode* node = edge._nodes[0]; // source node
- SMDS_TypeOfPosition posType = node->GetPosition()->GetTypeOfPosition();
+ const SMDS_TypeOfPosition posType = node->GetPosition()->GetTypeOfPosition();
edge._len = 0;
edge._2neibors = 0;
edge._normal.SetCoord(0,0,0);
int totalNbFaces = 0;
+ TopoDS_Face F;
+ std::pair< TopoDS_Face, gp_XYZ > face2Norm[20];
gp_Vec geomNorm;
bool normOK = true;
+ // get geom FACEs the node lies on
+ {
+ set<TGeomID> faceIds;
+ if ( posType == SMDS_TOP_FACE )
+ {
+ faceIds.insert( node->getshapeId() );
+ }
+ else
+ {
+ SMDS_ElemIteratorPtr fIt = node->GetInverseElementIterator(SMDSAbs_Face);
+ while ( fIt->more() )
+ faceIds.insert( editor.FindShape(fIt->next()));
+ }
+ set<TGeomID>::iterator id = faceIds.begin();
+ for ( ; id != faceIds.end(); ++id )
+ {
+ const TopoDS_Shape& s = getMeshDS()->IndexToShape( *id );
+ if ( s.IsNull() || s.ShapeType() != TopAbs_FACE || !subIds.count( *id ))
+ continue;
+ F = TopoDS::Face( s );
+ face2Norm[ totalNbFaces ].first = F;
+ totalNbFaces++;
+ }
+ }
+
const TGeomID shapeInd = node->getshapeId();
map< TGeomID, TopoDS_Shape >::const_iterator s2s = data._shrinkShape2Shape.find( shapeInd );
const bool onShrinkShape ( s2s != data._shrinkShape2Shape.end() );
+ // find _normal
if ( onShrinkShape ) // one of faces the node is on has no layers
{
TopoDS_Shape vertEdge = getMeshDS()->IndexToShape( s2s->first ); // vertex or edge
}
else // layers are on all faces of SOLID the node is on
{
- // find indices of geom faces the node lies on
- set<TGeomID> faceIds;
- if ( posType == SMDS_TOP_FACE )
- {
- faceIds.insert( node->getshapeId() );
- }
- else
- {
- SMDS_ElemIteratorPtr fIt = node->GetInverseElementIterator(SMDSAbs_Face);
- while ( fIt->more() )
- faceIds.insert( editor.FindShape(fIt->next()));
- }
-
- set<TGeomID>::iterator id = faceIds.begin();
- TopoDS_Face F;
- std::pair< TGeomID, gp_XYZ > id2Norm[20];
- for ( ; id != faceIds.end(); ++id )
+ int nbOkNorms = 0;
+ for ( int iF = 0; iF < totalNbFaces; ++iF )
{
- const TopoDS_Shape& s = getMeshDS()->IndexToShape( *id );
- if ( s.IsNull() || s.ShapeType() != TopAbs_FACE || !subIds.count( *id ))
- continue;
- F = TopoDS::Face( s );
+ F = TopoDS::Face( face2Norm[ iF ].first );
geomNorm = getFaceNormal( node, F, helper, normOK );
if ( !normOK ) continue;
+ nbOkNorms++;
if ( helper.GetSubShapeOri( data._solid, F ) != TopAbs_REVERSED )
geomNorm.Reverse();
- id2Norm[ totalNbFaces ].first = *id;
- id2Norm[ totalNbFaces ].second = geomNorm.XYZ();
- totalNbFaces++;
+ face2Norm[ iF ].second = geomNorm.XYZ();
edge._normal += geomNorm.XYZ();
}
- if ( totalNbFaces == 0 )
+ if ( nbOkNorms == 0 )
return error(SMESH_Comment("Can't get normal to node ") << node->GetID(), data._index);
- if ( normOK && edge._normal.Modulus() < 1e-3 && totalNbFaces > 1 )
+ if ( edge._normal.Modulus() < 1e-3 && nbOkNorms > 1 )
{
// opposite normals, re-get normals at shifted positions (IPAL 52426)
edge._normal.SetCoord( 0,0,0 );
- for ( int i = 0; i < totalNbFaces; ++i )
+ for ( int iF = 0; iF < totalNbFaces; ++iF )
{
- const TopoDS_Face& F = TopoDS::Face( getMeshDS()->IndexToShape( id2Norm[i].first ));
+ const TopoDS_Face& F = face2Norm[iF].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;
+ face2Norm[ iF ].second = geomNorm.XYZ();
+ edge._normal += face2Norm[ iF ].second;
}
}
}
else
{
- edge._normal = getWeigthedNormal( node, id2Norm, totalNbFaces );
+ edge._normal = getWeigthedNormal( node, face2Norm, totalNbFaces );
}
+ }
- switch ( posType )
- {
- case SMDS_TOP_FACE:
- edge._cosin = 0; break;
-
- case SMDS_TOP_EDGE: {
- TopoDS_Edge E = TopoDS::Edge( helper.GetSubShapeByNode( node, getMeshDS()));
- 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;
- break;
- }
- case SMDS_TOP_VERTEX: {
- TopoDS_Vertex V = TopoDS::Vertex( helper.GetSubShapeByNode( node, getMeshDS()));
- 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()
+ // set _cosin
+ switch ( posType )
+ {
+ case SMDS_TOP_FACE: {
+ edge._cosin = 0;
+ break;
+ }
+ case SMDS_TOP_EDGE: {
+ TopoDS_Edge E = TopoDS::Edge( helper.GetSubShapeByNode( node, getMeshDS()));
+ 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;
+ break;
+ }
+ case SMDS_TOP_VERTEX: {
+ TopoDS_Vertex V = TopoDS::Vertex( helper.GetSubShapeByNode( node, getMeshDS()));
+ gp_Vec inFaceDir = getFaceDir( F, V, node, helper, normOK );
+ double angle = inFaceDir.Angle( edge._normal ); // [0,PI]
+ edge._cosin = Cos( angle );
+ if ( totalNbFaces > 2 || helper.IsSeamShape( node->getshapeId() ))
+ for ( int iF = totalNbFaces-2; iF >=0; --iF )
+ {
+ F = face2Norm[ iF ].first;
+ inFaceDir = getFaceDir( F, V, node, helper, normOK );
+ if ( normOK ) {
+ double angle = inFaceDir.Angle( edge._normal );
+ edge._cosin = Max( 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);
+ }
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, data._ignoreFaceIds, &data );
- double avgNormProj = 0, avgLen = 0;
- 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;
- avgLen += vec.Modulus();
- }
- avgNormProj /= edge._simplices.size();
- avgLen /= edge._simplices.size();
- edge._curvature = _Curvature::New( avgNormProj, avgLen );
+ _Simplex::GetSimplices( node, edge._simplices, data._ignoreFaceIds, &data );
}
}
{
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
isOK = false;
Handle(Geom_Surface) surface = BRep_Tool::Surface( face );
- if ( GeomLib::NormEstim( surface, uv, 1e-10, normal ) < 3 )
+
+ if ( !shiftInside &&
+ helper.IsDegenShape( node->getshapeId() ) &&
+ getFaceNormalAtSingularity( uv, face, helper, normal ))
{
- normal;
isOK = true;
+ return normal.XYZ();
}
- else // hard singularity
+
+ 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 );
isOK = SMESH_MeshAlgos::FaceNormal( f, (gp_XYZ&) normal.XYZ(), /*normalized=*/true );
if ( isOK )
{
- if ( helper.IsReversedSubMesh( face ))
+ TopoDS_Face ff = face;
+ ff.Orientation( TopAbs_FORWARD );
+ if ( helper.IsReversedSubMesh( ff ))
normal.Reverse();
break;
}
return normal.XYZ();
}
+//================================================================================
+/*!
+ * \brief Try to get normal at a singularity of a surface basing on it's nature
+ */
+//================================================================================
+
+bool _ViscousBuilder::getFaceNormalAtSingularity( const gp_XY& uv,
+ const TopoDS_Face& face,
+ SMESH_MesherHelper& helper,
+ gp_Dir& normal )
+{
+ BRepAdaptor_Surface surface( face );
+ gp_Dir axis;
+ if ( !getRovolutionAxis( surface, axis ))
+ return false;
+
+ double f,l, d, du, dv;
+ f = surface.FirstUParameter();
+ l = surface.LastUParameter();
+ d = ( uv.X() - f ) / ( l - f );
+ du = ( d < 0.5 ? +1. : -1 ) * 1e-5 * ( l - f );
+ f = surface.FirstVParameter();
+ l = surface.LastVParameter();
+ d = ( uv.Y() - f ) / ( l - f );
+ dv = ( d < 0.5 ? +1. : -1 ) * 1e-5 * ( l - f );
+
+ gp_Dir refDir;
+ gp_Pnt2d testUV = uv;
+ enum { REGULAR = 0, QUASYSINGULAR, CONICAL, IMPOSSIBLE };
+ double tol = 1e-5;
+ Handle(Geom_Surface) geomsurf = surface.Surface().Surface();
+ for ( int iLoop = 0; true ; ++iLoop )
+ {
+ testUV.SetCoord( testUV.X() + du, testUV.Y() + dv );
+ if ( GeomLib::NormEstim( geomsurf, testUV, tol, refDir ) == REGULAR )
+ break;
+ if ( iLoop > 20 )
+ return false;
+ tol /= 10.;
+ }
+
+ if ( axis * refDir < 0. )
+ axis.Reverse();
+
+ normal = axis;
+
+ return true;
+}
+
//================================================================================
/*!
* \brief Return a normal at a node weighted with angles taken by FACEs
*/
//================================================================================
-gp_XYZ _ViscousBuilder::getWeigthedNormal( const SMDS_MeshNode* n,
- std::pair< TGeomID, gp_XYZ > fId2Normal[],
- const int nbFaces )
+gp_XYZ _ViscousBuilder::getWeigthedNormal( const SMDS_MeshNode* n,
+ std::pair< TopoDS_Face, gp_XYZ > fId2Normal[],
+ 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 ;
+ resNorm += fId2Normal[i].second;
+ return resNorm;
+ }
+
+ // exclude equal normals
+ //int nbUniqNorms = nbFaces;
+ for ( int i = 0; i < nbFaces; ++i )
+ for ( int j = i+1; j < nbFaces; ++j )
+ if ( fId2Normal[i].second.IsEqual( fId2Normal[j].second, 0.1 ))
+ {
+ fId2Normal[i].second.SetCoord( 0,0,0 );
+ //--nbUniqNorms;
+ break;
+ }
+ //if ( nbUniqNorms < 3 )
+ {
+ for ( int i = 0; i < nbFaces; ++i )
+ resNorm += fId2Normal[i].second;
return resNorm;
}
double angles[30];
for ( int i = 0; i < nbFaces; ++i )
{
- const TopoDS_Face& F = TopoDS::Face( getMeshDS()->IndexToShape( fId2Normal[i].first ));
+ const TopoDS_Face& F = fId2Normal[i].first;
// look for two EDGEs shared by F and other FACEs within fId2Normal
TopoDS_Edge ee[2];
for ( int j = 0; j < nbFaces && !isSharedEdge; ++j )
{
if ( i == j ) continue;
- const TopoDS_Shape& otherF = getMeshDS()->IndexToShape( fId2Normal[j].first );
+ const TopoDS_Shape& otherF = fId2Normal[j].first;
isSharedEdge = SMESH_MesherHelper::IsSubShape( *E, otherF );
}
if ( !isSharedEdge )
}
else
{
- TopoDS_Vertex v10 = SMESH_MesherHelper::IthVertex( 1, ee[ 0 ]);
- TopoDS_Vertex v01 = SMESH_MesherHelper::IthVertex( 0, ee[ 1 ]);
- if ( !v10.IsSame( v01 ))
+ 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 );
+ angles[i] = SMESH_MesherHelper::GetAngle( ee[0], ee[1], F, TopoDS::Vertex( V ));
}
// compute a weighted normal
_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 );
// if ( _curvature )
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 _ViscousBuilder::getSimplices( const SMDS_MeshNode* node,
- vector<_Simplex>& simplices,
- const set<TGeomID>& ingnoreShapes,
- const _SolidData* dataToCheckOri,
- const bool toSort)
+void _Simplex::GetSimplices( const SMDS_MeshNode* node,
+ vector<_Simplex>& simplices,
+ const set<TGeomID>& ingnoreShapes,
+ const _SolidData* dataToCheckOri,
+ const bool toSort)
{
simplices.clear();
SMDS_ElemIteratorPtr fIt = node->GetInverseElementIterator(SMDSAbs_Face);
}
if ( toSort )
+ SortSimplices( simplices );
+}
+
+//================================================================================
+/*!
+ * \brief Set neighbor simplices side by side
+ */
+//================================================================================
+
+void _Simplex::SortSimplices(vector<_Simplex>& simplices)
+{
+ vector<_Simplex> sortedSimplices( simplices.size() );
+ sortedSimplices[0] = simplices[0];
+ int nbFound = 0;
+ for ( size_t i = 1; i < simplices.size(); ++i )
{
- vector<_Simplex> sortedSimplices( simplices.size() );
- sortedSimplices[0] = simplices[0];
- int nbFound = 0;
- for ( size_t i = 1; i < simplices.size(); ++i )
- {
- for ( size_t j = 1; j < simplices.size(); ++j )
- if ( sortedSimplices[i-1]._nNext == simplices[j]._nPrev )
- {
- sortedSimplices[i] = simplices[j];
- nbFound++;
- break;
- }
- }
- if ( nbFound == simplices.size() - 1 )
- simplices.swap( sortedSimplices );
+ for ( size_t j = 1; j < simplices.size(); ++j )
+ if ( sortedSimplices[i-1]._nNext == simplices[j]._nPrev )
+ {
+ sortedSimplices[i] = simplices[j];
+ nbFound++;
+ break;
+ }
}
+ if ( nbFound == simplices.size() - 1 )
+ simplices.swap( sortedSimplices );
}
//================================================================================
dumpFunctionEnd();
dumpFunction( SMESH_Comment("makeTmpFaces_") << i );
+ dumpCmd( "faceId1 = mesh.NbElements()" );
TopExp_Explorer fExp( _sdVec[i]._solid, TopAbs_FACE );
for ( ; fExp.More(); fExp.Next() )
{
if (const SMESHDS_SubMesh* sm = _sdVec[i]._proxyMesh->GetProxySubMesh( fExp.Current()))
{
+ if ( sm->NbElements() == 0 ) continue;
SMDS_ElemIteratorPtr fIt = sm->GetElements();
while ( fIt->more())
{
}
}
}
+ dumpCmd( "faceId2 = mesh.NbElements()" );
+ dumpCmd( SMESH_Comment( "mesh.MakeGroup( 'tmpFaces_" ) << i << "',"
+ << "SMESH.FACE, SMESH.FT_RangeOfIds,'=',"
+ << "'%s-%s' % (faceId1+1, faceId2))");
dumpFunctionEnd();
}
#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 ( size_t 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 )
- limitStepSize( data, tgtThick );
+ const double tgtThick = data._maxThickness;
+ if ( data._stepSize > data._minThickness )
+ limitStepSize( data, data._minThickness );
if ( data._stepSize < 1. )
data._epsilon = data._stepSize * 1e-7;
- debugMsg( "-- geomSize = " << geomSize << ", stepSize = " << data._stepSize );
+ debugMsg( "-- geomSize = " << data._geomSize << ", stepSize = " << data._stepSize );
+
+ const double safeFactor = ( 2*data._maxThickness < data._geomSize ) ? 1 : theThickToIntersection;
double avgThick = 0, curThick = 0, distToIntersection = Precision::Infinite();
int nbSteps = 0, nbRepeats = 0;
- while ( 1.01 * avgThick < tgtThick )
+ int iBeg, iEnd, iS;
+ while ( avgThick < 0.99 )
{
// new target length
curThick += data._stepSize;
if ( curThick > tgtThick )
{
- curThick = tgtThick + ( tgtThick-avgThick ) * nbRepeats;
+ curThick = tgtThick + tgtThick*( 1.-avgThick ) * nbRepeats;
nbRepeats++;
}
// Elongate _LayerEdge's
dumpFunction(SMESH_Comment("inflate")<<data._index<<"_step"<<nbSteps); // debug
- for ( size_t i = 0; i < data._edges.size(); ++i )
+ for ( iBeg = 0, iS = 0; iS < data._endEdgeOnShape.size(); ++iS )
{
- data._edges[i]->SetNewLength( curThick, helper );
+ const double shapeCurThick = Min( curThick, data._hypOnShape[ iS ].GetTotalThickness() );
+ for ( iEnd = data._endEdgeOnShape[ iS ]; iBeg < iEnd; ++iBeg )
+ {
+ data._edges[iBeg]->SetNewLength( shapeCurThick, helper );
+ }
}
dumpFunctionEnd();
{
if ( nbSteps > 0 )
{
+#ifdef __NOT_INVALIDATE_BAD_SMOOTH
+ debugMsg("NOT INVALIDATED STEP!");
+ return error("Smoothing failed", data._index);
+#endif
dumpFunction(SMESH_Comment("invalidate")<<data._index<<"_step"<<nbSteps); // debug
for ( size_t i = 0; i < data._edges.size(); ++i )
{
// Evaluate achieved thickness
avgThick = 0;
- for ( size_t i = 0; i < data._edges.size(); ++i )
- avgThick += data._edges[i]->_len;
+ for ( iBeg = 0, iS = 0; iS < data._endEdgeOnShape.size(); ++iS )
+ {
+ const double shapeTgtThick = data._hypOnShape[ iS ].GetTotalThickness();
+ for ( iEnd = data._endEdgeOnShape[ iS ]; iBeg < iEnd; ++iBeg )
+ {
+ avgThick += Min( 1., data._edges[iBeg]->_len / shapeTgtThick );
+ }
+ }
avgThick /= data._edges.size();
- debugMsg( "-- Thickness " << avgThick << " reached" );
+ debugMsg( "-- Thickness " << curThick << " ("<< avgThick*100 << "%) reached" );
- if ( distToIntersection < avgThick*1.5 )
+ if ( distToIntersection < tgtThick * avgThick * safeFactor && avgThick < 0.9 )
{
debugMsg( "-- Stop inflation since "
<< " distToIntersection( "<<distToIntersection<<" ) < avgThick( "
- << avgThick << " ) * 1.5" );
+ << tgtThick * avgThick << " ) * " << safeFactor );
break;
}
// new step size
data._stepSize = data._stepSizeCoeff *
SMESH_TNodeXYZ(data._stepSizeNodes[0]).Distance(data._stepSizeNodes[1]);
- } // while ( 1.01 * avgThick < tgtThick )
+ } // while ( avgThick < 0.99 )
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 ))
+ if ( avgThick < 0.99 )
+ {
+ if ( !data._proxyMesh->_warning || data._proxyMesh->_warning->IsOK() )
{
- 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 ));
+ data._proxyMesh->_warning.reset
+ ( new SMESH_ComputeError (COMPERR_WARNING,
+ SMESH_Comment("Thickness ") << tgtThick <<
+ " of viscous layers not reached,"
+ " average reached thickness is " << avgThick*tgtThick));
}
+ }
+
+ // Restore position of src nodes moved by infaltion on _noShrinkShapes
+ dumpFunction(SMESH_Comment("restoNoShrink_So")<<data._index); // debug
+ for ( iEnd = 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;
}
return true; // no shapes needing smoothing
bool moved, improved;
+ vector< _LayerEdge* > badSmooEdges;
SMESH_MesherHelper helper(*_mesh);
Handle(Geom_Surface) surface;
iBeg = iEnd;
iEnd = data._endEdgeOnShape[ iS ];
+ // need to smooth this shape?
+ bool toSmooth = ( data._hyps.front() == data._hyps.back() );
+ for ( int i = iBeg; i < iEnd && !toSmooth; ++i )
+ toSmooth = ( data._edges[ iBeg ]->NbSteps() >= nbSteps+1 );
+ if ( !toSmooth )
+ {
+ if ( iS+1 == data._nbShapesToSmooth )
+ data._nbShapesToSmooth--;
+ continue; // target length reached some steps before
+ }
+
+ // prepare data
if ( !data._edges[ iBeg ]->_sWOL.IsNull() &&
data._edges[ iBeg ]->_sWOL.ShapeType() == TopAbs_FACE )
{
{
F.Nullify(); surface.Nullify();
}
- TGeomID sInd = data._edges[ iBeg ]->_nodes[0]->getshapeId();
+ const TGeomID sInd = data._edges[ iBeg ]->_nodes[0]->getshapeId();
+
+ // perform smoothing
if ( data._edges[ iBeg ]->IsOnEdge() )
{
else
{
// smooth on FACE's
- int step = 0, stepLimit = 5, badNb = 0; moved = true;
- while (( ++step <= stepLimit && moved ) || improved )
+
+ const bool isConcaveFace = data._concaveFaces.count( sInd );
+
+ int step = 0, stepLimit = 5, badNb = 0;
+ while (( ++step <= stepLimit ) || improved )
{
dumpFunction(SMESH_Comment("smooth")<<data._index<<"_Fa"<<sInd
<<"_InfStep"<<nbSteps<<"_"<<step); // debug
int oldBadNb = badNb;
- badNb = 0;
- moved = false;
- 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);
+ badSmooEdges.clear();
+
+ if ( step % 2 ) {
+ for ( int i = iBeg; i < iEnd; ++i ) // iterate forward
+ if ( data._edges[i]->Smooth( step, isConcaveFace, false ))
+ badSmooEdges.push_back( data._edges[i] );
+ }
+ else {
+ for ( int i = iEnd-1; i >= iBeg; --i ) // iterate backward
+ if ( data._edges[i]->Smooth( step, isConcaveFace, false ))
+ badSmooEdges.push_back( data._edges[i] );
+ }
+ badNb = badSmooEdges.size();
improved = ( badNb < oldBadNb );
+ if ( !badSmooEdges.empty() && step >= stepLimit / 2 )
+ {
+ // look for the best smooth of _LayerEdge's neighboring badSmooEdges
+ vector<_Simplex> simplices;
+ for ( size_t i = 0; i < badSmooEdges.size(); ++i )
+ {
+ _LayerEdge* ledge = badSmooEdges[i];
+ _Simplex::GetSimplices( ledge->_nodes[0], simplices, data._ignoreFaceIds );
+ for ( size_t iS = 0; iS < simplices.size(); ++iS )
+ {
+ TNode2Edge::iterator n2e = data._n2eMap.find( simplices[iS]._nNext );
+ if ( n2e != data._n2eMap.end()) {
+ _LayerEdge* ledge2 = n2e->second;
+ if ( ledge2->_nodes[0]->getshapeId() == sInd )
+ ledge2->Smooth( step, isConcaveFace, /*findBest=*/true );
+ }
+ }
+ }
+ }
// issue 22576 -- no bad faces but still there are intersections to fix
- if ( improved && badNb == 0 )
- stepLimit = step + 3;
+ // if ( improved && badNb == 0 )
+ // stepLimit = step + 3;
dumpFunctionEnd();
}
if ( badNb > 0 )
{
#ifdef __myDEBUG
+ double vol = 0;
for ( int i = iBeg; i < iEnd; ++i )
{
_LayerEdge* edge = data._edges[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 ))
+ if ( !edge->_simplices[j].IsForward( edge->_nodes[0], &tgtXYZ, vol ))
{
cout << "Bad simplex ( " << edge->_nodes[0]->GetID()<< " "<< tgtXYZ._node->GetID()
<< " "<< edge->_simplices[j]._nPrev->GetID()
if ( convFace->_subIdToEdgeEnd.count ( data._edges[i]->_nodes[0]->getshapeId() ))
continue;
+ // ignore intersection of a _LayerEdge based on a FACE with an element on this FACE
+ // ( avoid limiting the thickness on the case of issue 22576)
+ if ( intFace->getshapeId() == data._edges[i]->_nodes[0]->getshapeId() )
+ continue;
+
distToIntersection = dist;
iLE = i;
closestFace = intFace;
Handle(Geom_Curve) _SolidData::CurveForSmooth( const TopoDS_Edge& E,
const int iFrom,
const int iTo,
- Handle(Geom_Surface)& surface,
const TopoDS_Face& F,
- SMESH_MesherHelper& helper)
+ SMESH_MesherHelper& helper,
+ vector<_LayerEdge* >* edges)
{
TGeomID eIndex = helper.GetMeshDS()->ShapeToIndex( E );
if ( i2curve == _edge2curve.end() )
{
+ if ( edges )
+ _edges.swap( *edges );
+
// sort _LayerEdge's by position on the EDGE
SortOnEdge( E, iFrom, iTo, helper );
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] );
- const double lineTol = 1e-2 * ( p0 - p1 ).Modulus();
+ gp_Pnt p0, p1;
+ if ( iTo-iFrom > 1 ) {
+ p0 = SMESH_TNodeXYZ( _edges[iFrom]->_nodes[0] );
+ p1 = SMESH_TNodeXYZ( _edges[iFrom+1]->_nodes[0] );
+ }
+ else {
+ p0 = curve->Value( f );
+ p1 = curve->Value( l );
+ }
+ const double lineTol = 1e-2 * p0.Distance( p1 );
for ( int i = 0; i < 3 && !isLine; ++i )
isLine = ( size.Coord( i+1 ) <= lineTol );
+
+ if ( isLine )
+ line = new Geom_Line( gp::OX() ); // only type does matter
}
if ( !isLine && !isCirc && iTo-iFrom > 2) // Check if the EDGE is close to a circle
{
}
}
+ if ( edges )
+ _edges.swap( *edges );
+
Handle(Geom_Curve)& res = _edge2curve[ eIndex ];
if ( isLine )
res = line;
for ( int i = iFrom; i < iTo; ++i, ++u2e )
_edges[i] = u2e->second;
- // set _2neibors according to the new order
+ Sort2NeiborsOnEdge( iFrom, iTo );
+}
+
+//================================================================================
+/*!
+ * \brief Set _2neibors according to the order of _LayerEdge on EDGE
+ */
+//================================================================================
+
+void _SolidData::Sort2NeiborsOnEdge( const int iFrom, const int iTo)
+{
for ( int i = iFrom; i < iTo-1; ++i )
- if ( _edges[i]->_2neibors->_nodes[1] != _edges[i+1]->_nodes.back() )
+ if ( _edges[i]->_2neibors->tgtNode(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() )
+ if ( iTo - iFrom > 1 &&
+ _edges[iTo-1]->_2neibors->tgtNode(0) != _edges[iTo-2]->_nodes.back() )
_edges[iTo-1]->_2neibors->reverse();
}
//================================================================================
bool _SolidData::GetShapeEdges(const TGeomID shapeID,
- size_t & edgesEnd,
+ size_t & iEdgesEnd,
int* iBeg,
int* iEnd ) const
{
int beg = 0, end = 0;
- for ( edgesEnd = 0; edgesEnd < _endEdgeOnShape.size(); ++edgesEnd )
+ for ( iEdgesEnd = 0; iEdgesEnd < _endEdgeOnShape.size(); ++iEdgesEnd )
{
- end = _endEdgeOnShape[ edgesEnd ];
+ end = _endEdgeOnShape[ iEdgesEnd ];
TGeomID sID = _edges[ beg ]->_nodes[0]->getshapeId();
if ( sID == shapeID )
{
return false;
}
+//================================================================================
+/*!
+ * \brief Prepare data of the _LayerEdge for smoothing on FACE
+ */
+//================================================================================
+
+void _SolidData::PrepareEdgesToSmoothOnFace( _LayerEdge** edgeBeg,
+ _LayerEdge** edgeEnd,
+ const TopoDS_Face& face,
+ bool substituteSrcNodes )
+{
+ set< TGeomID > vertices;
+ SMESH_MesherHelper helper( *_proxyMesh->GetMesh() );
+ if ( isConcave( face, helper, &vertices ))
+ _concaveFaces.insert( (*edgeBeg)->_nodes[0]->getshapeId() );
+
+ for ( _LayerEdge** edge = edgeBeg; edge != edgeEnd; ++edge )
+ (*edge)->_smooFunction = 0;
+
+ for ( ; edgeBeg != edgeEnd; ++edgeBeg )
+ {
+ _LayerEdge* edge = *edgeBeg;
+ _Simplex::GetSimplices
+ ( edge->_nodes[0], edge->_simplices, _ignoreFaceIds, this, /*sort=*/true );
+
+ edge->ChooseSmooFunction( vertices, _n2eMap );
+
+ double avgNormProj = 0, avgLen = 0;
+ for ( size_t i = 0; i < edge->_simplices.size(); ++i )
+ {
+ _Simplex& s = edge->_simplices[i];
+
+ gp_XYZ vec = edge->_pos.back() - SMESH_TNodeXYZ( s._nPrev );
+ avgNormProj += edge->_normal * vec;
+ avgLen += vec.Modulus();
+ if ( substituteSrcNodes )
+ {
+ s._nNext = _n2eMap[ s._nNext ]->_nodes.back();
+ s._nPrev = _n2eMap[ s._nPrev ]->_nodes.back();
+ }
+ }
+ avgNormProj /= edge->_simplices.size();
+ avgLen /= edge->_simplices.size();
+ edge->_curvature = _Curvature::New( avgNormProj, avgLen );
+ }
+}
+
//================================================================================
/*!
* \brief Add faces for smoothing
int iBeg, iEnd;
for ( size_t i = _nbShapesToSmooth; i <= lastSmooth; ++i )
{
- vector< _LayerEdge* > & edgesVec = iEnds.count(i) ? smoothLE : nonSmoothLE;
+ bool toSmooth = iEnds.count(i);
+ vector< _LayerEdge* > & edgesVec = toSmooth ? smoothLE : nonSmoothLE;
iBeg = i ? _endEdgeOnShape[ i-1 ] : 0;
iEnd = _endEdgeOnShape[ i ];
- edgesVec.insert( edgesVec.end(), _edges.begin() + iBeg, _edges.begin() + iEnd );
+ edgesVec.insert( edgesVec.end(), _edges.begin() + iBeg, _edges.begin() + iEnd );
+
+ // preparation for smoothing on FACE
+ if ( toSmooth && _edges[iBeg]->_nodes[0]->GetPosition()->GetDim() == 2 )
+ {
+ TopoDS_Shape S = SMESH_MesherHelper::GetSubShapeByNode( _edges[iBeg]->_nodes[0],
+ _proxyMesh->GetMeshDS() );
+ if ( !S.IsNull() && S.ShapeType() == TopAbs_FACE )
+ {
+ PrepareEdgesToSmoothOnFace( &_edges[ iBeg ],
+ &_edges[ iEnd ],
+ TopoDS::Face( S ),
+ /*substituteSrcNodes=*/true );
+ }
+ }
}
iBeg = _nbShapesToSmooth ? _endEdgeOnShape[ _nbShapesToSmooth-1 ] : 0;
helper.GetMeshDS());
TopoDS_Edge E = TopoDS::Edge( S );
- Handle(Geom_Curve) curve = data.CurveForSmooth( E, iFrom, iTo, surface, F, helper );
+ Handle(Geom_Curve) curve = data.CurveForSmooth( E, iFrom, iTo, F, helper );
if ( curve.IsNull() ) return false;
// compute a relative length of segments
{
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 );
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 )
edge1->SetNewLength( data._stepSize, helper );
if ( edge1->IsOnEdge() )
{
- const SMDS_MeshNode * n1 = edge1->_2neibors->_edges[0]->_nodes[0];
- const SMDS_MeshNode * n2 = edge1->_2neibors->_edges[1]->_nodes[0];
+ const SMDS_MeshNode * n1 = edge1->_2neibors->srcNode(0);
+ const SMDS_MeshNode * n2 = edge1->_2neibors->srcNode(1);
edge1->SetDataByNeighbors( n1, n2, helper );
}
bool _ConvexFace::CheckPrisms() const
{
+ double vol = 0;
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 ))
+ if ( !edge->_simplices[j].IsForward( edge->_nodes[0], &tgtXYZ, vol ))
{
debugMsg( "Bad simplex of _simplexTestEdges ("
<< " "<< edge->_nodes[0]->GetID()<< " "<< tgtXYZ._node->GetID()
gp_XYZ orig = _pos.back();
gp_XYZ dir;
int iPrev = _pos.size() - 2;
+ const double tol = ( _len > 0 ) ? 0.3*_len : 1e-100; // adjusted for IPAL52478 + PAL22576
while ( iPrev >= 0 )
{
dir = orig - _pos[iPrev];
- if ( dir.SquareModulus() > 1e-100 )
+ if ( dir.SquareModulus() > tol*tol )
break;
else
iPrev--;
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
{
//const double EPSILON = 1e-6;
- gp_XYZ orig = lastSegment.Location().XYZ();
- gp_XYZ dir = lastSegment.Direction().XYZ();
+ const gp_Pnt& orig = lastSegment.Location();
+ const gp_Dir& dir = lastSegment.Direction();
SMESH_TNodeXYZ vert0( n0 );
SMESH_TNodeXYZ vert1( n1 );
SMESH_TNodeXYZ vert2( n2 );
/* calculate distance from vert0 to ray origin */
- gp_XYZ tvec = orig - vert0;
+ gp_XYZ tvec = orig.XYZ() - vert0;
//if ( tvec * dir > EPSILON )
// intersected face is at back side of the temporary face this _LayerEdge belongs to
gp_XYZ edge2 = vert2 - vert0;
/* begin calculating determinant - also used to calculate U parameter */
- gp_XYZ pvec = dir ^ edge2;
+ gp_XYZ pvec = dir.XYZ() ^ edge2;
/* if determinant is near zero, ray lies in plane of triangle */
double det = edge1 * pvec;
if (det > -EPSILON && det < EPSILON)
return false;
- double inv_det = 1.0 / det;
/* calculate U parameter and test bounds */
- double u = ( tvec * pvec ) * inv_det;
+ double u = ( tvec * pvec ) / det;
//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 )
- if ( v < -EPSILON || u + v > 1.0 + EPSILON)
- return false;
+ /* calculate V parameter and test bounds */
+ double v = (dir.XYZ() * qvec) / det;
+ //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) / det;
+
+ //return true;
+ return t > 0.;
+}
+
+//================================================================================
+/*!
+ * \brief Perform smooth of _LayerEdge's based on EDGE's
+ * \retval bool - true if node has been moved
+ */
+//================================================================================
+
+bool _LayerEdge::SmoothOnEdge(Handle(Geom_Surface)& surface,
+ const TopoDS_Face& F,
+ SMESH_MesherHelper& helper)
+{
+ ASSERT( IsOnEdge() );
+
+ SMDS_MeshNode* tgtNode = const_cast<SMDS_MeshNode*>( _nodes.back() );
+ SMESH_TNodeXYZ oldPos( tgtNode );
+ double dist01, distNewOld;
+
+ 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;
+ if ( _curvature )
+ {
+ //lenDelta = _curvature->lenDelta( _len );
+ lenDelta = _curvature->lenDeltaByDist( dist01 );
+ newPos.ChangeCoord() += _normal * lenDelta;
+ }
+
+ distNewOld = newPos.Distance( oldPos );
+
+ if ( F.IsNull() )
+ {
+ if ( _2neibors->_plnNorm )
+ {
+ // put newPos on the plane defined by source node and _plnNorm
+ gp_XYZ new2src = SMESH_TNodeXYZ( _nodes[0] ) - newPos.XYZ();
+ double new2srcProj = (*_2neibors->_plnNorm) * new2src;
+ newPos.ChangeCoord() += (*_2neibors->_plnNorm) * new2srcProj;
+ }
+ tgtNode->setXYZ( newPos.X(), newPos.Y(), newPos.Z() );
+ _pos.back() = newPos.XYZ();
+ }
+ else
+ {
+ tgtNode->setXYZ( newPos.X(), newPos.Y(), newPos.Z() );
+ gp_XY uv( Precision::Infinite(), 0 );
+ helper.CheckNodeUV( F, tgtNode, uv, 1e-10, /*force=*/true );
+ _pos.back().SetCoord( uv.X(), uv.Y(), 0 );
+
+ newPos = surface->Value( uv.X(), uv.Y() );
+ tgtNode->setXYZ( newPos.X(), newPos.Y(), newPos.Z() );
+ }
+
+ // commented for IPAL0052478
+ // if ( _curvature && lenDelta < 0 )
+ // {
+ // gp_Pnt prevPos( _pos[ _pos.size()-2 ]);
+ // _len -= prevPos.Distance( oldPos );
+ // _len += prevPos.Distance( newPos );
+ // }
+ bool moved = distNewOld > dist01/50;
+ //if ( moved )
+ dumpMove( tgtNode ); // debug
+
+ return moved;
+}
+
+//================================================================================
+/*!
+ * \brief Perform laplacian smooth in 3D of nodes inflated from FACE
+ * \retval bool - true if _tgtNode has been moved
+ */
+//================================================================================
+
+int _LayerEdge::Smooth(const int step, const bool isConcaveFace, const bool findBest )
+{
+ if ( _simplices.size() < 2 )
+ return 0; // _LayerEdge inflated along EDGE or FACE
+
+ const gp_XYZ& curPos ( _pos.back() );
+ const gp_XYZ& prevPos( _pos[ _pos.size()-2 ]);
+
+ // quality metrics (orientation) of tetras around _tgtNode
+ int nbOkBefore = 0;
+ double vol, minVolBefore = 1e100;
+ for ( size_t i = 0; i < _simplices.size(); ++i )
+ {
+ nbOkBefore += _simplices[i].IsForward( _nodes[0], &curPos, vol );
+ minVolBefore = Min( minVolBefore, vol );
+ }
+ int nbBad = _simplices.size() - nbOkBefore;
+
+ // compute new position for the last _pos using different _funs
+ gp_XYZ newPos;
+ for ( int iFun = -1; iFun < theNbSmooFuns; ++iFun )
+ {
+ if ( iFun < 0 )
+ newPos = (this->*_smooFunction)(); // fun chosen by ChooseSmooFunction()
+ else if ( _funs[ iFun ] == _smooFunction )
+ continue; // _smooFunction again
+ else if ( step > 0 )
+ newPos = (this->*_funs[ iFun ])(); // try other smoothing fun
+ else
+ break; // let "easy" functions improve elements around distorted ones
+
+ if ( _curvature )
+ {
+ double delta = _curvature->lenDelta( _len );
+ if ( delta > 0 )
+ newPos += _normal * delta;
+ else
+ {
+ double segLen = _normal * ( newPos - prevPos );
+ if ( segLen + delta > 0 )
+ newPos += _normal * delta;
+ }
+ // double segLenChange = _normal * ( curPos - newPos );
+ // newPos += 0.5 * _normal * segLenChange;
+ }
+
+ int nbOkAfter = 0;
+ double minVolAfter = 1e100;
+ for ( size_t i = 0; i < _simplices.size(); ++i )
+ {
+ nbOkAfter += _simplices[i].IsForward( _nodes[0], &newPos, vol );
+ minVolAfter = Min( minVolAfter, vol );
+ }
+ // get worse?
+ if ( nbOkAfter < nbOkBefore )
+ continue;
+ if (( isConcaveFace || findBest ) &&
+ ( nbOkAfter == nbOkBefore ) &&
+ //( iFun > -1 || nbOkAfter < _simplices.size() ) &&
+ ( minVolAfter <= minVolBefore ))
+ continue;
+
+ SMDS_MeshNode* n = const_cast< SMDS_MeshNode* >( _nodes.back() );
+
+ // commented for IPAL0052478
+ // _len -= prevPos.Distance(SMESH_TNodeXYZ( n ));
+ // _len += prevPos.Distance(newPos);
+
+ n->setXYZ( newPos.X(), newPos.Y(), newPos.Z());
+ _pos.back() = newPos;
+ dumpMoveComm( n, _funNames[ iFun < 0 ? smooFunID() : iFun ]);
+
+ nbBad = _simplices.size() - nbOkAfter;
+
+ if ( iFun > -1 )
+ {
+ //_smooFunction = _funs[ iFun ];
+ // cout << "# " << _funNames[ iFun ] << "\t N:" << _nodes.back()->GetID()
+ // << "\t nbBad: " << _simplices.size() - nbOkAfter
+ // << " minVol: " << minVolAfter
+ // << " " << newPos.X() << " " << newPos.Y() << " " << newPos.Z()
+ // << endl;
+ minVolBefore = minVolAfter;
+ nbOkBefore = nbOkAfter;
+ continue; // look for a better function
+ }
+
+ if ( !findBest )
+ break;
+
+ } // loop on smoothing functions
+
+ return nbBad;
+}
+
+//================================================================================
+/*!
+ * \brief Chooses a smoothing technic giving a position most close to an initial one.
+ * For a correct result, _simplices must contain nodes lying on geometry.
+ */
+//================================================================================
+
+void _LayerEdge::ChooseSmooFunction( const set< TGeomID >& concaveVertices,
+ const TNode2Edge& n2eMap)
+{
+ if ( _smooFunction ) return;
+
+ // use smoothNefPolygon() near concaveVertices
+ if ( !concaveVertices.empty() )
+ {
+ for ( size_t i = 0; i < _simplices.size(); ++i )
+ {
+ if ( concaveVertices.count( _simplices[i]._nPrev->getshapeId() ))
+ {
+ _smooFunction = _funs[ FUN_NEFPOLY ];
+
+ // set FUN_CENTROIDAL to neighbor edges
+ TNode2Edge::const_iterator n2e;
+ for ( i = 0; i < _simplices.size(); ++i )
+ {
+ if (( _simplices[i]._nPrev->GetPosition()->GetDim() == 2 ) &&
+ (( n2e = n2eMap.find( _simplices[i]._nPrev )) != n2eMap.end() ))
+ {
+ n2e->second->_smooFunction = _funs[ FUN_CENTROIDAL ];
+ }
+ }
+ return;
+ }
+ }
+ //}
+
+ // this coice is done only if ( !concaveVertices.empty() ) for Grids/smesh/bugs_19/X1
+ // where the nodes are smoothed too far along a sphere thus creating
+ // inverted _simplices
+ double dist[theNbSmooFuns];
+ //double coef[theNbSmooFuns] = { 1., 1.2, 1.4, 1.4 };
+ double coef[theNbSmooFuns] = { 1., 1., 1., 1. };
+
+ double minDist = Precision::Infinite();
+ gp_Pnt p = SMESH_TNodeXYZ( _nodes[0] );
+ for ( int i = 0; i < FUN_NEFPOLY; ++i )
+ {
+ gp_Pnt newP = (this->*_funs[i])();
+ dist[i] = p.SquareDistance( newP );
+ if ( dist[i]*coef[i] < minDist )
+ {
+ _smooFunction = _funs[i];
+ minDist = dist[i]*coef[i];
+ }
+ }
+ }
+ else
+ {
+ _smooFunction = _funs[ FUN_LAPLACIAN ];
+ }
+ // int minDim = 3;
+ // for ( size_t i = 0; i < _simplices.size(); ++i )
+ // minDim = Min( minDim, _simplices[i]._nPrev->GetPosition()->GetDim() );
+ // if ( minDim == 0 )
+ // _smooFunction = _funs[ FUN_CENTROIDAL ];
+ // else if ( minDim == 1 )
+ // _smooFunction = _funs[ FUN_CENTROIDAL ];
+
+
+ // int iMin;
+ // for ( int i = 0; i < FUN_NB; ++i )
+ // {
+ // //cout << dist[i] << " ";
+ // if ( _smooFunction == _funs[i] ) {
+ // iMin = i;
+ // //debugMsg( fNames[i] );
+ // break;
+ // }
+ // }
+ // cout << _funNames[ iMin ] << "\t N:" << _nodes.back()->GetID() << endl;
+}
+
+//================================================================================
+/*!
+ * \brief Returns a name of _SmooFunction
+ */
+//================================================================================
+
+int _LayerEdge::smooFunID( _LayerEdge::PSmooFun fun) const
+{
+ if ( !fun )
+ fun = _smooFunction;
+ for ( int i = 0; i < theNbSmooFuns; ++i )
+ if ( fun == _funs[i] )
+ return i;
+
+ return theNbSmooFuns;
+}
+
+//================================================================================
+/*!
+ * \brief Computes a new node position using Laplacian smoothing
+ */
+//================================================================================
+
+gp_XYZ _LayerEdge::smoothLaplacian()
+{
+ gp_XYZ newPos (0,0,0);
+ for ( size_t i = 0; i < _simplices.size(); ++i )
+ newPos += SMESH_TNodeXYZ( _simplices[i]._nPrev );
+ newPos /= _simplices.size();
+
+ return newPos;
+}
+
+//================================================================================
+/*!
+ * \brief Computes a new node position using angular-based smoothing
+ */
+//================================================================================
+
+gp_XYZ _LayerEdge::smoothAngular()
+{
+ vector< gp_Vec > edgeDir; edgeDir. reserve( _simplices.size() + 1);
+ vector< double > edgeSize; edgeSize.reserve( _simplices.size() );
+ vector< gp_XYZ > points; points. reserve( _simplices.size() );
+
+ gp_XYZ pPrev = SMESH_TNodeXYZ( _simplices.back()._nPrev );
+ gp_XYZ pN( 0,0,0 );
+ for ( size_t i = 0; i < _simplices.size(); ++i )
+ {
+ gp_XYZ p = SMESH_TNodeXYZ( _simplices[i]._nPrev );
+ edgeDir.push_back( p - pPrev );
+ edgeSize.push_back( edgeDir.back().Magnitude() );
+ //double edgeSize = edgeDir.back().Magnitude();
+ if ( edgeSize.back() < numeric_limits<double>::min() )
+ {
+ edgeDir.pop_back();
+ edgeSize.pop_back();
+ }
+ else
+ {
+ edgeDir.back() /= edgeSize.back();
+ points.push_back( p );
+ pN += p;
+ }
+ pPrev = p;
+ }
+ edgeDir.push_back ( edgeDir[0] );
+ edgeSize.push_back( edgeSize[0] );
+ pN /= points.size();
+
+ gp_XYZ newPos(0,0,0);
+ //gp_XYZ pN = SMESH_TNodeXYZ( _nodes.back() );
+ double sumSize = 0;
+ for ( size_t i = 0; i < points.size(); ++i )
+ {
+ gp_Vec toN( pN - points[i]);
+ double toNLen = toN.Magnitude();
+ if ( toNLen < numeric_limits<double>::min() )
+ {
+ newPos += pN;
+ continue;
+ }
+ gp_Vec bisec = edgeDir[i] + edgeDir[i+1];
+ double bisecLen = bisec.SquareMagnitude();
+ if ( bisecLen < numeric_limits<double>::min() )
+ {
+ gp_Vec norm = edgeDir[i] ^ toN;
+ bisec = norm ^ edgeDir[i];
+ bisecLen = bisec.SquareMagnitude();
+ }
+ bisecLen = Sqrt( bisecLen );
+ bisec /= bisecLen;
- /* calculate t, ray intersects triangle */
- t = (edge2 * qvec) * inv_det;
+#if 1
+ //bisecLen = 1.;
+ gp_XYZ pNew = ( points[i] + bisec.XYZ() * toNLen ) * bisecLen;
+ sumSize += bisecLen;
+#else
+ gp_XYZ pNew = ( points[i] + bisec.XYZ() * toNLen ) * ( edgeSize[i] + edgeSize[i+1] );
+ sumSize += ( edgeSize[i] + edgeSize[i+1] );
+#endif
+ newPos += pNew;
+ }
+ newPos /= sumSize;
- //return true;
- return t > 0.;
+ return newPos;
}
//================================================================================
/*!
- * \brief Perform smooth of _LayerEdge's based on EDGE's
- * \retval bool - true if node has been moved
+ * \brief Computes a new node position using weigthed node positions
*/
//================================================================================
-bool _LayerEdge::SmoothOnEdge(Handle(Geom_Surface)& surface,
- const TopoDS_Face& F,
- SMESH_MesherHelper& helper)
+gp_XYZ _LayerEdge::smoothLengthWeighted()
{
- ASSERT( IsOnEdge() );
-
- SMDS_MeshNode* tgtNode = const_cast<SMDS_MeshNode*>( _nodes.back() );
- 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] );
-
- gp_Pnt newPos = p0 * _2neibors->_wgt[0] + p1 * _2neibors->_wgt[1];
- double lenDelta = 0;
- if ( _curvature )
- {
- //lenDelta = _curvature->lenDelta( _len );
- lenDelta = _curvature->lenDeltaByDist( dist01 );
- newPos.ChangeCoord() += _normal * lenDelta;
- }
-
- distNewOld = newPos.Distance( oldPos );
+ vector< double > edgeSize; edgeSize.reserve( _simplices.size() + 1);
+ vector< gp_XYZ > points; points. reserve( _simplices.size() );
- if ( F.IsNull() )
+ gp_XYZ pPrev = SMESH_TNodeXYZ( _simplices.back()._nPrev );
+ for ( size_t i = 0; i < _simplices.size(); ++i )
{
- if ( _2neibors->_plnNorm )
+ gp_XYZ p = SMESH_TNodeXYZ( _simplices[i]._nPrev );
+ edgeSize.push_back( ( p - pPrev ).Modulus() );
+ if ( edgeSize.back() < numeric_limits<double>::min() )
{
- // put newPos on the plane defined by source node and _plnNorm
- gp_XYZ new2src = SMESH_TNodeXYZ( _nodes[0] ) - newPos.XYZ();
- double new2srcProj = (*_2neibors->_plnNorm) * new2src;
- newPos.ChangeCoord() += (*_2neibors->_plnNorm) * new2srcProj;
+ edgeSize.pop_back();
}
- tgtNode->setXYZ( newPos.X(), newPos.Y(), newPos.Z() );
- _pos.back() = newPos.XYZ();
+ else
+ {
+ points.push_back( p );
+ }
+ pPrev = p;
}
- else
- {
- tgtNode->setXYZ( newPos.X(), newPos.Y(), newPos.Z() );
- gp_XY uv( Precision::Infinite(), 0 );
- helper.CheckNodeUV( F, tgtNode, uv, 1e-10, /*force=*/true );
- _pos.back().SetCoord( uv.X(), uv.Y(), 0 );
+ edgeSize.push_back( edgeSize[0] );
- newPos = surface->Value( uv.X(), uv.Y() );
- tgtNode->setXYZ( newPos.X(), newPos.Y(), newPos.Z() );
+ gp_XYZ newPos(0,0,0);
+ double sumSize = 0;
+ for ( size_t i = 0; i < points.size(); ++i )
+ {
+ newPos += points[i] * ( edgeSize[i] + edgeSize[i+1] );
+ sumSize += edgeSize[i] + edgeSize[i+1];
}
+ newPos /= sumSize;
+ return newPos;
+}
- if ( _curvature && lenDelta < 0 )
+//================================================================================
+/*!
+ * \brief Computes a new node position using angular-based smoothing
+ */
+//================================================================================
+
+gp_XYZ _LayerEdge::smoothCentroidal()
+{
+ gp_XYZ newPos(0,0,0);
+ gp_XYZ pN = SMESH_TNodeXYZ( _nodes.back() );
+ double sumSize = 0;
+ for ( size_t i = 0; i < _simplices.size(); ++i )
{
- gp_Pnt prevPos( _pos[ _pos.size()-2 ]);
- _len -= prevPos.Distance( oldPos );
- _len += prevPos.Distance( newPos );
+ gp_XYZ p1 = SMESH_TNodeXYZ( _simplices[i]._nPrev );
+ gp_XYZ p2 = SMESH_TNodeXYZ( _simplices[i]._nNext );
+ gp_XYZ gc = ( pN + p1 + p2 ) / 3.;
+ double size = (( p1 - pN ) ^ ( p2 - pN )).Modulus();
+
+ sumSize += size;
+ newPos += gc * size;
}
- bool moved = distNewOld > dist01/50;
- //if ( moved )
- dumpMove( tgtNode ); // debug
+ newPos /= sumSize;
- return moved;
+ return newPos;
}
//================================================================================
/*!
- * \brief Perform laplacian smooth in 3D of nodes inflated from FACE
- * \retval bool - true if _tgtNode has been moved
+ * \brief Computes a new node position located inside a Nef polygon
*/
//================================================================================
-bool _LayerEdge::Smooth(int& badNb)
+gp_XYZ _LayerEdge::smoothNefPolygon()
{
- if ( _simplices.size() < 2 )
- return false; // _LayerEdge inflated along EDGE or FACE
+ gp_XYZ newPos(0,0,0);
- // compute new position for the last _pos
- gp_XYZ newPos (0,0,0);
- for ( size_t i = 0; i < _simplices.size(); ++i )
- newPos += SMESH_TNodeXYZ( _simplices[i]._nPrev );
- newPos /= _simplices.size();
+ // get a plane to seach a solution on
- const gp_XYZ& curPos ( _pos.back() );
- const gp_Pnt prevPos( _pos[ _pos.size()-2 ]);
- if ( _curvature )
+ vector< gp_XYZ > vecs( _simplices.size() + 1 );
+ size_t i;
+ const double tol = numeric_limits<double>::min();
+ gp_XYZ center(0,0,0);
+ for ( i = 0; i < _simplices.size(); ++i )
{
- 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;
+ vecs[i] = ( SMESH_TNodeXYZ( _simplices[i]._nNext ) -
+ SMESH_TNodeXYZ( _simplices[i]._nPrev ));
+ center += SMESH_TNodeXYZ( _simplices[i]._nPrev );
}
+ vecs.back() = vecs[0];
+ center /= _simplices.size();
- // count quality metrics (orientation) of tetras around _tgtNode
- int nbOkBefore = 0;
- for ( size_t i = 0; i < _simplices.size(); ++i )
- nbOkBefore += _simplices[i].IsForward( _nodes[0], &curPos );
+ gp_XYZ zAxis(0,0,0);
+ for ( i = 0; i < _simplices.size(); ++i )
+ zAxis += vecs[i] ^ vecs[i+1];
- int nbOkAfter = 0;
+ gp_XYZ yAxis;
+ for ( i = 0; i < _simplices.size(); ++i )
+ {
+ yAxis = vecs[i];
+ if ( yAxis.SquareModulus() > tol )
+ break;
+ }
+ gp_XYZ xAxis = yAxis ^ zAxis;
+ // SMESH_TNodeXYZ p0( _simplices[0]._nPrev );
+ // const double tol = 1e-6 * ( p0.Distance( _simplices[1]._nPrev ) +
+ // p0.Distance( _simplices[2]._nPrev ));
+ // gp_XYZ center = smoothLaplacian();
+ // gp_XYZ xAxis, yAxis, zAxis;
+ // for ( i = 0; i < _simplices.size(); ++i )
+ // {
+ // xAxis = SMESH_TNodeXYZ( _simplices[i]._nPrev ) - center;
+ // if ( xAxis.SquareModulus() > tol*tol )
+ // break;
+ // }
+ // for ( i = 1; i < _simplices.size(); ++i )
+ // {
+ // yAxis = SMESH_TNodeXYZ( _simplices[i]._nPrev ) - center;
+ // zAxis = xAxis ^ yAxis;
+ // if ( zAxis.SquareModulus() > tol*tol )
+ // break;
+ // }
+ // if ( i == _simplices.size() ) return newPos;
+
+ yAxis = zAxis ^ xAxis;
+ xAxis /= xAxis.Modulus();
+ yAxis /= yAxis.Modulus();
+
+ // get half-planes of _simplices
+
+ vector< _halfPlane > halfPlns( _simplices.size() );
+ int nbHP = 0;
for ( size_t i = 0; i < _simplices.size(); ++i )
- nbOkAfter += _simplices[i].IsForward( _nodes[0], &newPos );
+ {
+ gp_XYZ OP1 = SMESH_TNodeXYZ( _simplices[i]._nPrev ) - center;
+ gp_XYZ OP2 = SMESH_TNodeXYZ( _simplices[i]._nNext ) - center;
+ gp_XY p1( OP1 * xAxis, OP1 * yAxis );
+ gp_XY p2( OP2 * xAxis, OP2 * yAxis );
+ gp_XY vec12 = p2 - p1;
+ double dist12 = vec12.Modulus();
+ if ( dist12 < tol )
+ continue;
+ vec12 /= dist12;
+ halfPlns[ nbHP ]._pos = p1;
+ halfPlns[ nbHP ]._dir = vec12;
+ halfPlns[ nbHP ]._inNorm.SetCoord( -vec12.Y(), vec12.X() );
+ ++nbHP;
+ }
- if ( nbOkAfter < nbOkBefore )
- return false;
+ // intersect boundaries of half-planes, define state of intersection points
+ // in relation to all half-planes and calculate internal point of a 2D polygon
- SMDS_MeshNode* n = const_cast< SMDS_MeshNode* >( _nodes.back() );
+ double sumLen = 0;
+ gp_XY newPos2D (0,0);
- _len -= prevPos.Distance(SMESH_TNodeXYZ( n ));
- _len += prevPos.Distance(newPos);
+ enum { UNDEF = -1, NOT_OUT, IS_OUT, NO_INT };
+ typedef std::pair< gp_XY, int > TIntPntState; // coord and isOut state
+ TIntPntState undefIPS( gp_XY(1e100,1e100), UNDEF );
- n->setXYZ( newPos.X(), newPos.Y(), newPos.Z());
- _pos.back() = newPos;
+ vector< vector< TIntPntState > > allIntPnts( nbHP );
+ for ( int iHP1 = 0; iHP1 < nbHP; ++iHP1 )
+ {
+ vector< TIntPntState > & intPnts1 = allIntPnts[ iHP1 ];
+ if ( intPnts1.empty() ) intPnts1.resize( nbHP, undefIPS );
- badNb += _simplices.size() - nbOkAfter;
+ int iPrev = SMESH_MesherHelper::WrapIndex( iHP1 - 1, nbHP );
+ int iNext = SMESH_MesherHelper::WrapIndex( iHP1 + 1, nbHP );
- dumpMove( n );
+ int nbNotOut = 0;
+ const gp_XY* segEnds[2] = { 0, 0 }; // NOT_OUT points
- return true;
+ for ( int iHP2 = 0; iHP2 < nbHP; ++iHP2 )
+ {
+ if ( iHP1 == iHP2 ) continue;
+
+ TIntPntState & ips1 = intPnts1[ iHP2 ];
+ if ( ips1.second == UNDEF )
+ {
+ // find an intersection point of boundaries of iHP1 and iHP2
+
+ if ( iHP2 == iPrev ) // intersection with neighbors is known
+ ips1.first = halfPlns[ iHP1 ]._pos;
+ else if ( iHP2 == iNext )
+ ips1.first = halfPlns[ iHP2 ]._pos;
+ else if ( !halfPlns[ iHP1 ].FindInterestion( halfPlns[ iHP2 ], ips1.first ))
+ ips1.second = NO_INT;
+
+ // classify the found intersection point
+ if ( ips1.second != NO_INT )
+ {
+ ips1.second = NOT_OUT;
+ for ( int i = 0; i < nbHP && ips1.second == NOT_OUT; ++i )
+ if ( i != iHP1 && i != iHP2 &&
+ halfPlns[ i ].IsOut( ips1.first, tol ))
+ ips1.second = IS_OUT;
+ }
+ vector< TIntPntState > & intPnts2 = allIntPnts[ iHP2 ];
+ if ( intPnts2.empty() ) intPnts2.resize( nbHP, undefIPS );
+ TIntPntState & ips2 = intPnts2[ iHP1 ];
+ ips2 = ips1;
+ }
+ if ( ips1.second == NOT_OUT )
+ {
+ ++nbNotOut;
+ segEnds[ bool(segEnds[0]) ] = & ips1.first;
+ }
+ }
+
+ // find a NOT_OUT segment of boundary which is located between
+ // two NOT_OUT int points
+
+ if ( nbNotOut < 2 )
+ continue; // no such a segment
+
+ if ( nbNotOut > 2 )
+ {
+ // sort points along the boundary
+ map< double, TIntPntState* > ipsByParam;
+ for ( int iHP2 = 0; iHP2 < nbHP; ++iHP2 )
+ {
+ TIntPntState & ips1 = intPnts1[ iHP2 ];
+ if ( ips1.second != NO_INT )
+ {
+ gp_XY op = ips1.first - halfPlns[ iHP1 ]._pos;
+ double param = op * halfPlns[ iHP1 ]._dir;
+ ipsByParam.insert( make_pair( param, & ips1 ));
+ }
+ }
+ // look for two neighboring NOT_OUT points
+ nbNotOut = 0;
+ map< double, TIntPntState* >::iterator u2ips = ipsByParam.begin();
+ for ( ; u2ips != ipsByParam.end(); ++u2ips )
+ {
+ TIntPntState & ips1 = *(u2ips->second);
+ if ( ips1.second == NOT_OUT )
+ segEnds[ bool( nbNotOut++ ) ] = & ips1.first;
+ else if ( nbNotOut >= 2 )
+ break;
+ else
+ nbNotOut = 0;
+ }
+ }
+
+ if ( nbNotOut >= 2 )
+ {
+ double len = ( *segEnds[0] - *segEnds[1] ).Modulus();
+ sumLen += len;
+
+ newPos2D += 0.5 * len * ( *segEnds[0] + *segEnds[1] );
+ }
+ }
+
+ if ( sumLen > 0 )
+ {
+ newPos2D /= sumLen;
+ newPos = center + xAxis * newPos2D.X() + yAxis * newPos2D.Y();
+ }
+ else
+ {
+ newPos = center;
+ }
+
+ return newPos;
}
//================================================================================
{
if ( _len - len > -1e-6 )
{
- _pos.push_back( _pos.back() );
+ //_pos.push_back( _pos.back() );
return;
}
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]);
}
TNode2Edge* n2eMap = 0;
TNode2Edge::iterator n2e;
+ // Create intermediate nodes on each _LayerEdge
+
+ int iS = 0, iEnd = data._endEdgeOnShape[ iS ];
+
for ( size_t i = 0; i < data._edges.size(); ++i )
{
_LayerEdge& edge = *data._edges[i];
+ if ( edge._nodes.size() < 2 )
+ continue; // on _noShrinkShapes
+
+ // get parameters of layers for the edge
+ if ( i == iEnd )
+ iEnd = data._endEdgeOnShape[ ++iS ];
+ const AverageHyp& hyp = data._hypOnShape[ iS ];
+
// get accumulated length of segments
vector< double > segLen( edge._pos.size() );
segLen[0] = 0.0;
const SMDS_MeshNode* tgtNode = edge._nodes.back();
if ( edge._nodes.size() == 2 )
{
- edge._nodes.resize( data._hyp->GetNumberLayers() + 1, 0 );
+ edge._nodes.resize( hyp.GetNumberLayers() + 1, 0 );
edge._nodes[1] = 0;
edge._nodes.back() = tgtNode;
}
n2eMap = ( s2ne == data._s2neMap.end() ) ? 0 : n2eMap = s2ne->second;
prevBaseId = baseShapeId;
}
+ _LayerEdge* edgeOnSameNode = 0;
if ( n2eMap && (( n2e = n2eMap->find( edge._nodes[0] )) != n2eMap->end() ))
{
- _LayerEdge* foundEdge = n2e->second;
- const gp_XYZ& foundPos = foundEdge->_pos.back();
- SMDS_PositionPtr lastPos = tgtNode->GetPosition();
+ 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( foundPos.X() );
+ epos->SetUParameter( otherTgtPos.X() );
}
else
{
SMDS_FacePosition* fpos = static_cast<SMDS_FacePosition*>( lastPos );
- fpos->SetUParameter( foundPos.X() );
- fpos->SetVParameter( foundPos.Y() );
+ fpos->SetUParameter( otherTgtPos.X() );
+ fpos->SetVParameter( otherTgtPos.Y() );
}
}
// calculate height of the first layer
double h0;
const double T = segLen.back(); //data._hyp.GetTotalThickness();
- const double f = data._hyp->GetStretchFactor();
- const int N = data._hyp->GetNumberLayers();
+ const double f = hyp.GetStretchFactor();
+ const int N = hyp.GetNumberLayers();
const double fPowN = pow( f, N );
if ( fPowN - 1 <= numeric_limits<double>::min() )
h0 = T / N;
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>
}
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
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 ( data._ignoreFaceIds.count( getMeshDS()->ShapeToIndex( exp.Current() )))
+ const TGeomID faceID = getMeshDS()->ShapeToIndex( exp.Current() );
+ if ( data._ignoreFaceIds.count( faceID ))
continue;
- SMESHDS_SubMesh* fSubM = getMeshDS()->MeshElements( exp.Current() );
- SMDS_ElemIteratorPtr fIt = fSubM->GetElements();
- vector< vector<const SMDS_MeshNode*>* > nnVec;
+ const bool isReversedFace = data._reversedFaceIds.count( faceID );
+ SMESHDS_SubMesh* fSubM = getMeshDS()->MeshElements( exp.Current() );
+ SMDS_ElemIteratorPtr fIt = fSubM->GetElements();
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() );
- nnVec[ iN ] = & data._n2eMap[ n ]->_nodes;
+ const SMDS_MeshNode* n = nIt->next();
+ const int i = isReversedFace ? nbNodes-1-iN : iN;
+ nnVec[ i ] = & data._n2eMap[ n ]->_nodes;
+ if ( nnVec[ i ]->size() < 2 )
+ degenEdgeInd.insert( iN );
+ else
+ nbZ = nnVec[ i ]->size();
+
+ if ( helper.HasDegeneratedEdges() )
+ nnSet.insert( nnVec[ i ]);
}
+ 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;
}
// 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);
// ===========================
if ( !smoothNodes.empty() )
{
vector<_Simplex> simplices;
- getSimplices( smoothNodes[0], simplices, ignoreShapes );
+ _Simplex::GetSimplices( smoothNodes[0], simplices, ignoreShapes );
helper.GetNodeUV( F, simplices[0]._nPrev, 0, &isOkUV ); // fix UV of silpmex nodes
helper.GetNodeUV( F, simplices[0]._nNext, 0, &isOkUV );
gp_XY uv = helper.GetNodeUV( F, smoothNodes[0], 0, &isOkUV );
}
// 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 );
+ }
}
}
while ( fIt->more() )
if ( const SMDS_MeshElement* f = fIt->next() )
dumpChangeNodes( f );
+ dumpFunctionEnd();
// Replace source nodes by target nodes in mesh faces to shrink
dumpFunction(SMESH_Comment("replNodesOnFace")<<f2sd->first); // debug
dumpChangeNodes( f );
}
}
+ dumpFunctionEnd();
// find out if a FACE is concave
const bool isConcaveFace = isConcave( F, helper );
const SMDS_MeshNode* n = smoothNodes[i];
nodesToSmooth[ i ]._node = n;
// src nodes must be replaced by tgt nodes to have tgt nodes in _simplices
- getSimplices( n, nodesToSmooth[ i ]._simplices, ignoreShapes, NULL, sortSimplices );
+ _Simplex::GetSimplices( n, nodesToSmooth[ i ]._simplices, ignoreShapes, 0, sortSimplices);
// fix up incorrect uv of nodes on the FACE
helper.GetNodeUV( F, n, 0, &isOkUV);
dumpMove( n );
}
+ dumpFunctionEnd();
}
//if ( nodesToSmooth.empty() ) continue;
// srinked while srinking another FACE
srinker.RestoreParams();
}
- getSimplices( /*tgtNode=*/edge->_nodes.back(), edge->_simplices, ignoreShapes );
+ _Simplex::GetSimplices( /*tgtNode=*/edge->_nodes.back(), edge->_simplices, ignoreShapes );
}
}
n = usedNodes.find( nodesToSmooth[ i ]._node );
if ( n != usedNodes.end())
{
- getSimplices( nodesToSmooth[ i ]._node,
- nodesToSmooth[ i ]._simplices,
- ignoreShapes, NULL,
- /*sortSimplices=*/ smoothType == _SmoothNode::ANGULAR );
+ _Simplex::GetSimplices( nodesToSmooth[ i ]._node,
+ nodesToSmooth[ i ]._simplices,
+ ignoreShapes, NULL,
+ /*sortSimplices=*/ smoothType == _SmoothNode::ANGULAR );
usedNodes.erase( n );
}
}
n = usedNodes.find( /*tgtNode=*/ lEdges[i]->_nodes.back() );
if ( n != usedNodes.end())
{
- getSimplices( lEdges[i]->_nodes.back(),
- lEdges[i]->_simplices,
- ignoreShapes );
+ _Simplex::GetSimplices( lEdges[i]->_nodes.back(),
+ lEdges[i]->_simplices,
+ ignoreShapes );
usedNodes.erase( n );
}
}
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;
}
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 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 );
+ }
+}
+
//================================================================================
/*!
* \brief Try to fix triangles with high aspect ratio by swaping diagonals
}
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 );
edgeSize.back() = edgeSize.front();
gp_XY newPos(0,0);
- int nbEdges = 0;
+ //int nbEdges = 0;
double sumSize = 0;
for ( size_t i = 1; i < edgeDir.size(); ++i )
{
distToN = -distToN;
newPos += ( p + bisec * distToN ) * ( edgeSize[i1] + edgeSize[i] );
- ++nbEdges;
+ //++nbEdges;
sumSize += edgeSize[i1] + edgeSize[i];
}
newPos /= /*nbEdges * */sumSize;
{
SMESH_MesherHelper helper( *_mesh );
+ vector< const SMDS_MeshNode* > faceNodes;
+
for ( size_t i = 0; i < _sdVec.size(); ++i )
{
_SolidData& data = _sdVec[i];
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 )
{
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 );
