-// Copyright (C) 2007-2014 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2015 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
#include "SMDS_IteratorOnIterators.hxx"
#include "SMDS_VolumeTool.hxx"
#include "SMESH_Block.hxx"
+#include "SMESH_HypoFilter.hxx"
#include "SMESH_MeshAlgos.hxx"
#include "SMESH_ProxyMesh.hxx"
#include "SMESH_subMesh.hxx"
namespace {
- gp_XYZ XYZ(const SMDS_MeshNode* n) { return gp_XYZ(n->X(), n->Y(), n->Z()); }
+ inline SMESH_TNodeXYZ XYZ(const SMDS_MeshNode* n) { return SMESH_TNodeXYZ(n); }
enum { U_periodic = 1, V_periodic = 2 };
}
}
}
- if ( nbOldLinks == myTLinkNodeMap.size() )
+ // if ( nbOldLinks == myTLinkNodeMap.size() ) -- 0023068
+ if ( myTLinkNodeMap.empty() )
myCreateQuadratic = false;
- if(!myCreateQuadratic) {
+ if ( !myCreateQuadratic )
myTLinkNodeMap.clear();
- }
+
SetSubShape( aSh );
return myCreateQuadratic;
for ( TopExp_Explorer eF( aSh, TopAbs_FACE ); eF.More(); eF.Next() )
{
const TopoDS_Face& face = TopoDS::Face( eF.Current() );
- TopLoc_Location loc;
- Handle(Geom_Surface) surface = BRep_Tool::Surface( face, loc );
+ BRepAdaptor_Surface surf( face, false );
+ if ( surf.IsUPeriodic() || surf.IsUClosed() ) {
+ myParIndex |= U_periodic;
+ myPar1[0] = surf.FirstUParameter();
+ myPar2[0] = surf.LastUParameter();
+ }
+ if ( surf.IsVPeriodic() || surf.IsVClosed() ) {
+ myParIndex |= V_periodic;
+ myPar1[1] = surf.FirstVParameter();
+ myPar2[1] = surf.LastVParameter();
+ }
- // if ( surface->IsUPeriodic() || surface->IsVPeriodic() ||
- // surface->IsUClosed() || surface->IsVClosed() )
+ gp_Pnt2d uv1, uv2;
+ for (TopExp_Explorer exp( face, TopAbs_EDGE ); exp.More(); exp.Next())
{
- //while ( surface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface )))
- //surface = Handle(Geom_RectangularTrimmedSurface)::DownCast( surface )->BasisSurface();
- GeomAdaptor_Surface surf( surface );
-
- for (TopExp_Explorer exp( face, TopAbs_EDGE ); exp.More(); exp.Next())
+ // look for a "seam" edge, a real seam or an edge on period boundary
+ TopoDS_Edge edge = TopoDS::Edge( exp.Current() );
+ const int edgeID = meshDS->ShapeToIndex( edge );
+ if ( myParIndex )
{
- // look for a seam edge
- const TopoDS_Edge& edge = TopoDS::Edge( exp.Current() );
- if ( BRep_Tool::IsClosed( edge, face )) {
- // initialize myPar1, myPar2 and myParIndex
- gp_Pnt2d uv1, uv2;
- BRep_Tool::UVPoints( edge, face, uv1, uv2 );
- if ( Abs( uv1.Coord(1) - uv2.Coord(1) ) < Abs( uv1.Coord(2) - uv2.Coord(2) ))
+ BRep_Tool::UVPoints( edge, face, uv1, uv2 );
+ const double du = Abs( uv1.Coord(1) - uv2.Coord(1) );
+ const double dv = Abs( uv1.Coord(2) - uv2.Coord(2) );
+
+ bool isSeam = BRep_Tool::IsClosed( edge, face );
+ if ( isSeam ) // real seam - having two pcurves on face
+ {
+ // pcurve can lie not on pediod boundary (22582, mesh_Quadratic_01/C9)
+ if ( du < dv )
+ {
+ double u1 = uv1.Coord(1);
+ edge.Reverse();
+ BRep_Tool::UVPoints( edge, face, uv1, uv2 );
+ double u2 = uv1.Coord(1);
+ myPar1[0] = Min( u1, u2 );
+ myPar2[0] = Max( u1, u2 );
+ }
+ else
{
- myParIndex |= U_periodic;
- myPar1[0] = surf.FirstUParameter();
- myPar2[0] = surf.LastUParameter();
+ double v1 = uv1.Coord(2);
+ edge.Reverse();
+ BRep_Tool::UVPoints( edge, face, uv1, uv2 );
+ double v2 = uv1.Coord(2);
+ myPar1[1] = Min( v1, v2 );
+ myPar2[1] = Max( v1, v2 );
}
- else {
- myParIndex |= V_periodic;
- myPar1[1] = surf.FirstVParameter();
- myPar2[1] = surf.LastVParameter();
+ }
+ else //if ( !isSeam )
+ {
+ // one pcurve but on period boundary (22772, mesh_Quadratic_01/D1)
+ if (( myParIndex & U_periodic ) && du < Precision::PConfusion() )
+ {
+ isSeam = ( Abs( uv1.Coord(1) - myPar1[0] ) < Precision::PConfusion() ||
+ Abs( uv1.Coord(1) - myPar2[0] ) < Precision::PConfusion() );
}
- // store seam shape indices, negative if shape encounters twice
- int edgeID = meshDS->ShapeToIndex( edge );
+ else if (( myParIndex & V_periodic ) && dv < Precision::PConfusion() )
+ {
+ isSeam = ( Abs( uv1.Coord(2) - myPar1[1] ) < Precision::PConfusion() ||
+ Abs( uv1.Coord(2) - myPar2[1] ) < Precision::PConfusion() );
+ }
+ if ( isSeam ) // vertices are on period boundary, check a middle point (23032)
+ {
+ double f,l, r = 0.2345;
+ Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface( edge, face, f, l );
+ uv2 = C2d->Value( f * r + l * ( 1.-r ));
+ if ( du < Precision::PConfusion() )
+ isSeam = ( Abs( uv1.Coord(1) - uv2.Coord(1) ) < Precision::PConfusion() );
+ else
+ isSeam = ( Abs( uv1.Coord(2) - uv2.Coord(2) ) < Precision::PConfusion() );
+ }
+ }
+ if ( isSeam )
+ {
+ // store seam shape indices, negative if shape encounters twice ('real seam')
mySeamShapeIds.insert( IsSeamShape( edgeID ) ? -edgeID : edgeID );
for ( TopExp_Explorer v( edge, TopAbs_VERTEX ); v.More(); v.Next() ) {
int vertexID = meshDS->ShapeToIndex( v.Current() );
mySeamShapeIds.insert( IsSeamShape( vertexID ) ? -vertexID : vertexID );
}
}
-
- // look for a degenerated edge
- if ( SMESH_Algo::isDegenerated( edge )) {
- myDegenShapeIds.insert( meshDS->ShapeToIndex( edge ));
- for ( TopExp_Explorer v( edge, TopAbs_VERTEX ); v.More(); v.Next() )
- myDegenShapeIds.insert( meshDS->ShapeToIndex( v.Current() ));
- }
}
- if ( !myDegenShapeIds.empty() && !myParIndex ) {
- if ( surface->IsUPeriodic() || surface->IsUClosed() ) {
- myParIndex |= U_periodic;
- myPar1[0] = surf.FirstUParameter();
- myPar2[0] = surf.LastUParameter();
- }
- else if ( surface->IsVPeriodic() || surface->IsVClosed() ) {
- myParIndex |= V_periodic;
- myPar1[1] = surf.FirstVParameter();
- myPar2[1] = surf.LastVParameter();
- }
+ // look for a degenerated edge
+ if ( SMESH_Algo::isDegenerated( edge )) {
+ myDegenShapeIds.insert( edgeID );
+ for ( TopExp_Explorer v( edge, TopAbs_VERTEX ); v.More(); v.Next() )
+ myDegenShapeIds.insert( meshDS->ShapeToIndex( v.Current() ));
+ }
+ if ( !BRep_Tool::SameParameter( edge ) ||
+ !BRep_Tool::SameRange( edge ))
+ {
+ setPosOnShapeValidity( edgeID, false );
}
}
}
*/
//================================================================================
-void SMESH_MesherHelper::AddTLinks(const SMDS_MeshEdge* edge)
+bool SMESH_MesherHelper::AddTLinks(const SMDS_MeshEdge* edge)
{
- if ( edge->IsQuadratic() )
+ if ( edge && edge->IsQuadratic() )
AddTLinkNode(edge->GetNode(0), edge->GetNode(1), edge->GetNode(2));
+ else
+ return false;
+ return true;
}
//================================================================================
*/
//================================================================================
-void SMESH_MesherHelper::AddTLinks(const SMDS_MeshFace* f)
+bool SMESH_MesherHelper::AddTLinks(const SMDS_MeshFace* f)
{
+ bool isQuad = true;
if ( !f->IsPoly() )
switch ( f->NbNodes() ) {
case 7:
AddTLinkNode(f->GetNode(2),f->GetNode(3),f->GetNode(6));
AddTLinkNode(f->GetNode(3),f->GetNode(0),f->GetNode(7)); break;
default:;
+ isQuad = false;
}
+ return isQuad;
}
//================================================================================
*/
//================================================================================
-void SMESH_MesherHelper::AddTLinks(const SMDS_MeshVolume* volume)
+bool SMESH_MesherHelper::AddTLinks(const SMDS_MeshVolume* volume)
{
if ( volume->IsQuadratic() )
{
nFCenter ));
}
}
+ return true;
}
+ return false;
}
//================================================================================
//=======================================================================
-//function : GetUVOnSeam
+//function : getUVOnSeam
//purpose : Select UV on either of 2 pcurves of a seam edge, closest to the given UV
//=======================================================================
-gp_Pnt2d SMESH_MesherHelper::GetUVOnSeam( const gp_Pnt2d& uv1, const gp_Pnt2d& uv2 ) const
+gp_Pnt2d SMESH_MesherHelper::getUVOnSeam( const gp_Pnt2d& uv1, const gp_Pnt2d& uv2 ) const
{
gp_Pnt2d result = uv1;
for ( int i = U_periodic; i <= V_periodic ; ++i )
double p1 = uv1.Coord( i );
double dp1 = Abs( p1-myPar1[i-1]), dp2 = Abs( p1-myPar2[i-1]);
if ( myParIndex == i ||
- dp1 < ( myPar2[i-1] - myPar2[i-1] ) / 100. ||
- dp2 < ( myPar2[i-1] - myPar2[i-1] ) / 100. )
+ dp1 < ( myPar2[i-1] - myPar1[i-1] ) / 100. ||
+ dp2 < ( myPar2[i-1] - myPar1[i-1] ) / 100. )
{
double p2 = uv2.Coord( i );
double p1Alt = ( dp1 < dp2 ) ? myPar2[i-1] : myPar1[i-1];
const SMDS_PositionPtr Pos = n->GetPosition();
bool uvOK = false;
- if(Pos->GetTypeOfPosition()==SMDS_TOP_FACE)
+ if ( Pos->GetTypeOfPosition() == SMDS_TOP_FACE )
{
// node has position on face
- const SMDS_FacePosition* fpos =
- static_cast<const SMDS_FacePosition*>(n->GetPosition());
- uv.SetCoord(fpos->GetUParameter(),fpos->GetVParameter());
+ const SMDS_FacePosition* fpos = static_cast<const SMDS_FacePosition*>( Pos );
+ uv.SetCoord( fpos->GetUParameter(), fpos->GetVParameter() );
if ( check )
- uvOK = CheckNodeUV( F, n, uv.ChangeCoord(), 10*MaxTolerance( F ));
+ uvOK = CheckNodeUV( F, n, uv.ChangeCoord(), 2.*getFaceMaxTol( F )); // 2. from 22830
}
- else if(Pos->GetTypeOfPosition()==SMDS_TOP_EDGE)
+ else if ( Pos->GetTypeOfPosition() == SMDS_TOP_EDGE )
{
- // node has position on edge => it is needed to find
- // corresponding edge from face, get pcurve for this
- // edge and retrieve value from this pcurve
- const SMDS_EdgePosition* epos =
- static_cast<const SMDS_EdgePosition*>(n->GetPosition());
- int edgeID = n->getshapeId();
- TopoDS_Edge E = TopoDS::Edge(GetMeshDS()->IndexToShape(edgeID));
+ // node has position on EDGE => it is needed to find
+ // corresponding EDGE from FACE, get pcurve for this
+ // EDGE and retrieve value from this pcurve
+ const SMDS_EdgePosition* epos = static_cast<const SMDS_EdgePosition*>( Pos );
+ const int edgeID = n->getshapeId();
+ const TopoDS_Edge& E = TopoDS::Edge( GetMeshDS()->IndexToShape( edgeID ));
double f, l, u = epos->GetUParameter();
- Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
- bool validU = ( f < u && u < l );
- if ( validU )
- uv = C2d->Value( u );
- else
- uv.SetCoord( Precision::Infinite(),0.);
+ Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface( E, F, f, l );
+ bool validU = ( !C2d.IsNull() && ( f < u ) && ( u < l ));
+ if ( validU ) uv = C2d->Value( u );
+ else uv.SetCoord( Precision::Infinite(),0.);
if ( check || !validU )
- uvOK = CheckNodeUV( F, n, uv.ChangeCoord(), 10*MaxTolerance( F ),/*force=*/ !validU );
+ uvOK = CheckNodeUV( F, n, uv.ChangeCoord(), 2.*getFaceMaxTol( F ),/*force=*/ !validU );
- // for a node on a seam edge select one of UVs on 2 pcurves
- if ( n2 && IsSeamShape( edgeID ) )
+ // for a node on a seam EDGE select one of UVs on 2 pcurves
+ if ( n2 && IsSeamShape( edgeID ))
{
- uv = GetUVOnSeam( uv, GetNodeUV( F, n2, 0, check ));
+ uv = getUVOnSeam( uv, GetNodeUV( F, n2, 0, check ));
}
else
{ // adjust uv to period
Handle(Geom_Surface) S = BRep_Tool::Surface(F,loc);
Standard_Boolean isUPeriodic = S->IsUPeriodic();
Standard_Boolean isVPeriodic = S->IsVPeriodic();
+ gp_Pnt2d newUV = uv;
if ( isUPeriodic || isVPeriodic ) {
Standard_Real UF,UL,VF,VL;
S->Bounds(UF,UL,VF,VL);
- if(isUPeriodic)
- uv.SetX( uv.X() + ShapeAnalysis::AdjustToPeriod(uv.X(),UF,UL));
- if(isVPeriodic)
- uv.SetY( uv.Y() + ShapeAnalysis::AdjustToPeriod(uv.Y(),VF,VL));
+ if ( isUPeriodic ) newUV.SetX( uv.X() + ShapeAnalysis::AdjustToPeriod(uv.X(),UF,UL));
+ if ( isVPeriodic ) newUV.SetY( uv.Y() + ShapeAnalysis::AdjustToPeriod(uv.Y(),VF,VL));
+
+ if ( n2 )
+ {
+ gp_Pnt2d uv2 = GetNodeUV( F, n2, 0, check );
+ if ( isUPeriodic && Abs( uv.X()-uv2.X() ) < Abs( newUV.X()-uv2.X() ))
+ newUV.SetX( uv.X() );
+ if ( isVPeriodic && Abs( uv.Y()-uv2.Y() ) < Abs( newUV.Y()-uv2.Y() ))
+ newUV.SetY( uv.Y() );
+ }
}
+ uv = newUV;
}
}
- else if(Pos->GetTypeOfPosition()==SMDS_TOP_VERTEX)
+ else if ( Pos->GetTypeOfPosition() == SMDS_TOP_VERTEX )
{
if ( int vertexID = n->getshapeId() ) {
const TopoDS_Vertex& V = TopoDS::Vertex(GetMeshDS()->IndexToShape(vertexID));
// get UV of a vertex closest to the node
double dist = 1e100;
gp_Pnt pn = XYZ( n );
- for ( TopExp_Explorer vert(F,TopAbs_VERTEX); !uvOK && vert.More(); vert.Next() ) {
+ for ( TopExp_Explorer vert( F,TopAbs_VERTEX ); !uvOK && vert.More(); vert.Next() ) {
TopoDS_Vertex curV = TopoDS::Vertex( vert.Current() );
gp_Pnt p = BRep_Tool::Pnt( curV );
double curDist = p.SquareDistance( pn );
}
}
}
- if ( n2 && IsSeamShape( vertexID ) )
- uv = GetUVOnSeam( uv, GetNodeUV( F, n2, 0 ));
+ if ( n2 && IsSeamShape( vertexID ))
+ {
+ bool isSeam = ( myShape.IsSame( F ));
+ if ( !isSeam ) {
+ SMESH_MesherHelper h( *myMesh );
+ h.SetSubShape( F );
+ isSeam = IsSeamShape( vertexID );
+ }
+
+ if ( isSeam )
+ uv = getUVOnSeam( uv, GetNodeUV( F, n2, 0 ));
+ }
}
}
else
{
- uvOK = CheckNodeUV( F, n, uv.ChangeCoord(), 10*MaxTolerance( F ));
+ uvOK = CheckNodeUV( F, n, uv.ChangeCoord(), 2.*getFaceMaxTol( F ));
}
- if ( check )
+ if ( check && !uvOK )
*check = uvOK;
return uv.XY();
double distXYZ[4]) const
{
int shapeID = n->getshapeId();
- bool infinit = ( Precision::IsInfinite( uv.X() ) || Precision::IsInfinite( uv.Y() ));
- bool zero = ( uv.X() == 0. && uv.Y() == 0. );
- if ( force || toCheckPosOnShape( shapeID ) || infinit || zero )
+ bool infinit;
+ if (( infinit = ( Precision::IsInfinite( uv.X() ) || Precision::IsInfinite( uv.Y() ))) ||
+ ( force ) ||
+ ( uv.X() == 0. && uv.Y() == 0. ) ||
+ ( toCheckPosOnShape( shapeID )))
{
// check that uv is correct
TopLoc_Location loc;
const_cast<SMDS_MeshNode*>(n)->SetPosition
( SMDS_PositionPtr( new SMDS_FacePosition( U, V )));
}
- else if ( uv.Modulus() > numeric_limits<double>::min() )
+ else if ( myShape.IsSame(F) && uv.Modulus() > numeric_limits<double>::min() )
{
setPosOnShapeValidity( shapeID, true );
}
}
//=======================================================================
-//function : applyIn2D
+//function : ApplyIn2D
//purpose : Perform given operation on two 2d points in parameric space of given surface.
// It takes into account period of the surface. Use gp_XY_FunPtr macro
// to easily define pointer to function of gp_XY class.
//=======================================================================
-gp_XY SMESH_MesherHelper::applyIn2D(const Handle(Geom_Surface)& surface,
- const gp_XY& uv1,
- const gp_XY& uv2,
- xyFunPtr fun,
- const bool resultInPeriod)
+gp_XY SMESH_MesherHelper::ApplyIn2D(Handle(Geom_Surface) surface,
+ const gp_XY& uv1,
+ const gp_XY& uv2,
+ xyFunPtr fun,
+ const bool resultInPeriod)
{
+ if ( surface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface )))
+ surface = Handle(Geom_RectangularTrimmedSurface)::DownCast( surface )->BasisSurface();
Standard_Boolean isUPeriodic = surface.IsNull() ? false : surface->IsUPeriodic();
Standard_Boolean isVPeriodic = surface.IsNull() ? false : surface->IsVPeriodic();
if ( !isUPeriodic && !isVPeriodic )
return res;
}
+
+//=======================================================================
+//function : AdjustByPeriod
+//purpose : Move node positions on a FACE within surface period
+//=======================================================================
+
+void SMESH_MesherHelper::AdjustByPeriod( const TopoDS_Face& face, gp_XY uv[], const int nbUV )
+{
+ SMESH_MesherHelper h( *myMesh ), *ph = face.IsSame( myShape ) ? this : &h;
+ ph->SetSubShape( face );
+
+ for ( int iCoo = U_periodic; iCoo <= V_periodic; ++iCoo )
+ if ( ph->GetPeriodicIndex() & iCoo )
+ {
+ const double period = ( ph->myPar2[iCoo-1] - ph->myPar1[iCoo-1] );
+ const double xRef = uv[0].Coord( iCoo );
+ for ( int i = 1; i < nbUV; ++i )
+ {
+ double x = uv[i].Coord( iCoo );
+ double dx = ShapeAnalysis::AdjustByPeriod( x, xRef, period );
+ uv[i].SetCoord( iCoo, x + dx );
+ }
+ }
+}
+
//=======================================================================
//function : GetMiddleUV
//purpose : Return middle UV taking in account surface period
const gp_XY& p2)
{
// NOTE:
- // the proper place of getting basic surface seems to be in applyIn2D()
+ // the proper place of getting basic surface seems to be in ApplyIn2D()
// but we put it here to decrease a risk of regressions just before releasing a version
- Handle(Geom_Surface) surf = surface;
- while ( !surf.IsNull() && surf->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface )))
- surf = Handle(Geom_RectangularTrimmedSurface)::DownCast( surf )->BasisSurface();
+ // Handle(Geom_Surface) surf = surface;
+ // while ( !surf.IsNull() && surf->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface )))
+ // surf = Handle(Geom_RectangularTrimmedSurface)::DownCast( surf )->BasisSurface();
- return applyIn2D( surf, p1, p2, & AverageUV );
+ return ApplyIn2D( surface, p1, p2, & AverageUV );
}
//=======================================================================
double distXYZ[4]) const
{
int shapeID = n->getshapeId();
- bool infinit = Precision::IsInfinite( u );
- bool zero = ( u == 0. );
- if ( force || toCheckPosOnShape( shapeID ) || infinit || zero )
+ bool infinit;
+ if (( infinit = Precision::IsInfinite( u )) ||
+ ( force ) ||
+ ( u == 0. ) ||
+ ( toCheckPosOnShape( shapeID )))
{
TopLoc_Location loc; double f,l;
Handle(Geom_Curve) curve = BRep_Tool::Curve( E,loc,f,l );
gp_Pnt nodePnt = SMESH_TNodeXYZ( n );
if ( !loc.IsIdentity() ) nodePnt.Transform( loc.Transformation().Inverted() );
gp_Pnt curvPnt;
- double dist = u;
+ double dist = 2*tol;
if ( !infinit )
{
curvPnt = curve->Value( u );
//=======================================================================
//function : GetMediumPos
//purpose : Return index and type of the shape (EDGE or FACE only) to
-// set a medium node on
+// set a medium node on
//param : useCurSubShape - if true, returns the shape set via SetSubShape()
// if any
+//param : expectedSupport - shape type corresponding to element being created,
+// e.g TopAbs_EDGE if SMDSAbs_Edge is created
+// basing on \a n1 and \a n2
+// Calling GetMediumPos() with useCurSubShape=true is OK only for the
+// case where the lower dim mesh is already constructed and converted to quadratic,
+// else, nodes on EDGEs are assigned to FACE, for example.
//=======================================================================
std::pair<int, TopAbs_ShapeEnum>
SMESH_MesherHelper::GetMediumPos(const SMDS_MeshNode* n1,
const SMDS_MeshNode* n2,
- const bool useCurSubShape)
+ const bool useCurSubShape,
+ TopAbs_ShapeEnum expectedSupport)
{
if ( useCurSubShape && !myShape.IsNull() )
return std::make_pair( myShapeID, myShape.ShapeType() );
shapeID = n2->getshapeId();
shape = GetSubShapeByNode( n1, GetMeshDS() );
}
- else
+ else // 2 different shapes
{
const SMDS_TypeOfPosition Pos1 = n1->GetPosition()->GetTypeOfPosition();
const SMDS_TypeOfPosition Pos2 = n2->GetPosition()->GetTypeOfPosition();
if ( Pos1 == SMDS_TOP_3DSPACE || Pos2 == SMDS_TOP_3DSPACE )
{
+ // in SOLID
}
else if ( Pos1 == SMDS_TOP_FACE || Pos2 == SMDS_TOP_FACE )
{
- if ( Pos1 != SMDS_TOP_FACE || Pos2 != SMDS_TOP_FACE )
+ // in FACE or SOLID
+ if ( Pos1 != SMDS_TOP_FACE || Pos2 != SMDS_TOP_FACE ) // not 2 FACEs
{
if ( Pos1 != SMDS_TOP_FACE ) std::swap( n1,n2 );
TopoDS_Shape F = GetSubShapeByNode( n1, GetMeshDS() );
shape = GetCommonAncestor( V1, V2, *myMesh, TopAbs_EDGE );
if ( shape.IsNull() ) shape = GetCommonAncestor( V1, V2, *myMesh, TopAbs_FACE );
}
- else // VERTEX and EDGE
+ else // on VERTEX and EDGE
{
if ( Pos1 != SMDS_TOP_VERTEX ) std::swap( n1,n2 );
TopoDS_Shape V = GetSubShapeByNode( n1, GetMeshDS() );
{
if ( shapeID < 1 )
shapeID = GetMeshDS()->ShapeToIndex( shape );
- shapeType = shape.ShapeType();
+ shapeType = shape.ShapeType(); // EDGE or FACE
+
+ if ( expectedSupport < shapeType &&
+ expectedSupport != TopAbs_SHAPE &&
+ !myShape.IsNull() &&
+ myShape.ShapeType() == expectedSupport )
+ {
+ // e.g. a side of triangle connects nodes on the same EDGE but does not
+ // lie on this EDGE (an arc with a coarse mesh)
+ // => shapeType == TopAbs_EDGE, expectedSupport == TopAbs_FACE;
+ // hope that myShape is a right shape, return it if the found shape
+ // has converted elements of corresponding dim (segments in our example)
+ int nbConvertedElems = 0;
+ SMDSAbs_ElementType type = ( shapeType == TopAbs_FACE ? SMDSAbs_Face : SMDSAbs_Edge );
+ for ( int iN = 0; iN < 2; ++iN )
+ {
+ const SMDS_MeshNode* n = iN ? n2 : n1;
+ SMDS_ElemIteratorPtr it = n->GetInverseElementIterator( type );
+ while ( it->more() )
+ {
+ const SMDS_MeshElement* elem = it->next();
+ if ( elem->getshapeId() == shapeID &&
+ elem->IsQuadratic() )
+ {
+ ++nbConvertedElems;
+ break;
+ }
+ }
+ }
+ if ( nbConvertedElems == 2 )
+ {
+ shapeType = myShape.ShapeType();
+ shapeID = myShapeID;
+ }
+ }
}
return make_pair( shapeID, shapeType );
}
}
else
{
- PShapeIteratorPtr it = GetAncestors(shape, *GetMesh(), TopAbs_FACE );
+ PShapeIteratorPtr it = GetAncestors( shape, *GetMesh(), TopAbs_FACE );
while ( const TopoDS_Shape* face = it->next() )
{
faceID = meshDS->ShapeToIndex( *face );
- itMapWithIdFace = faceId2nbNodes.insert( std::make_pair( faceID, 0 ) ).first;
+ itMapWithIdFace = faceId2nbNodes.insert( std::make_pair( faceID, 0 )).first;
itMapWithIdFace->second++;
}
}
if ( solidID < 1 && !faceId2nbNodes.empty() ) // SOLID not found
{
// find ID of the FACE the four corner nodes belong to
- itMapWithIdFace = faceId2nbNodes.begin();
- for ( ; itMapWithIdFace != faceId2nbNodes.end(); ++itMapWithIdFace)
+ itMapWithIdFace = faceId2nbNodes.find( myShapeID ); // IPAL52698
+ if ( itMapWithIdFace != faceId2nbNodes.end() &&
+ itMapWithIdFace->second == 4 )
+ {
+ shapeType = TopAbs_FACE;
+ faceID = myShapeID;
+ }
+ else
{
- if ( itMapWithIdFace->second == 4 )
+ itMapWithIdFace = faceId2nbNodes.begin();
+ for ( ; itMapWithIdFace != faceId2nbNodes.end(); ++itMapWithIdFace)
{
- shapeType = TopAbs_FACE;
- faceID = (*itMapWithIdFace).first;
- break;
+ if ( itMapWithIdFace->second == 4 )
+ {
+ shapeType = TopAbs_FACE;
+ faceID = (*itMapWithIdFace).first;
+ break;
+ }
}
}
}
bool toCheck = true;
if ( !F.IsNull() && !force3d )
{
- uvAvg = calcTFI (0.5, 0.5,
- GetNodeUV(F,n1,n3,&toCheck), GetNodeUV(F,n2,n4,&toCheck),
- GetNodeUV(F,n3,n1,&toCheck), GetNodeUV(F,n4,n2,&toCheck),
- GetNodeUV(F,n12,n3), GetNodeUV(F,n23,n4),
- GetNodeUV(F,n34,n2), GetNodeUV(F,n41,n2));
+ gp_XY uv[8] = {
+ GetNodeUV( F,n1, n3, &toCheck ),
+ GetNodeUV( F,n2, n4, &toCheck ),
+ GetNodeUV( F,n3, n1, &toCheck ),
+ GetNodeUV( F,n4, n2, &toCheck ),
+ GetNodeUV( F,n12, n3 ),
+ GetNodeUV( F,n23, n4 ),
+ GetNodeUV( F,n34, n2 ),
+ GetNodeUV( F,n41, n2 )
+ };
+ AdjustByPeriod( F, uv, 8 ); // put uv[] within a period (IPAL52698)
+
+ uvAvg = calcTFI (0.5, 0.5, uv[0],uv[1],uv[2],uv[3], uv[4],uv[5],uv[6],uv[7] );
+
TopLoc_Location loc;
Handle( Geom_Surface ) S = BRep_Tool::Surface( F, loc );
P = S->Value( uvAvg.X(), uvAvg.Y() ).Transformed( loc );
{
P = calcTFI (0.5, 0.5,
SMESH_TNodeXYZ(n1), SMESH_TNodeXYZ(n2),
- SMESH_TNodeXYZ(n3), SMESH_TNodeXYZ(n4),
+ SMESH_TNodeXYZ(n3), SMESH_TNodeXYZ(n4),
SMESH_TNodeXYZ(n12), SMESH_TNodeXYZ(n23),
SMESH_TNodeXYZ(n34), SMESH_TNodeXYZ(n41));
centralNode = meshDS->AddNode( P.X(), P.Y(), P.Z() );
if ( solidID < 1 && !faceId2nbNodes.empty() ) // SOLID not found
{
// find ID of the FACE the four corner nodes belong to
- itMapWithIdFace = faceId2nbNodes.begin();
- for ( ; itMapWithIdFace != faceId2nbNodes.end(); ++itMapWithIdFace)
+ itMapWithIdFace = faceId2nbNodes.find( myShapeID ); // IPAL52698
+ if ( itMapWithIdFace != faceId2nbNodes.end() &&
+ itMapWithIdFace->second == 4 )
{
- if ( itMapWithIdFace->second == 3 )
+ shapeType = TopAbs_FACE;
+ faceID = myShapeID;
+ }
+ else
+ {
+ itMapWithIdFace = faceId2nbNodes.begin();
+ for ( ; itMapWithIdFace != faceId2nbNodes.end(); ++itMapWithIdFace)
{
- shapeType = TopAbs_FACE;
- faceID = (*itMapWithIdFace).first;
- break;
+ if ( itMapWithIdFace->second == 3 )
+ {
+ shapeType = TopAbs_FACE;
+ faceID = (*itMapWithIdFace).first;
+ break;
+ }
}
}
}
TopoDS_Face F;
gp_XY uvAvg;
- bool badTria=false;
if ( shapeType == TopAbs_FACE )
{
F = TopoDS::Face( meshDS->IndexToShape( faceID ));
- bool check;
- gp_XY uv1 = GetNodeUV( F, n1, n23, &check );
- gp_XY uv2 = GetNodeUV( F, n2, n31, &check );
- gp_XY uv3 = GetNodeUV( F, n3, n12, &check );
- gp_XY uv12 = GetNodeUV( F, n12, n3, &check );
- gp_XY uv23 = GetNodeUV( F, n23, n1, &check );
- gp_XY uv31 = GetNodeUV( F, n31, n2, &check );
- uvAvg = GetCenterUV( uv1,uv2,uv3, uv12,uv23,uv31, &badTria );
- if ( badTria )
- force3d = false;
+ bool checkOK = true, badTria = false;
+ gp_XY uv[6] = {
+ GetNodeUV( F, n1, n23, &checkOK ),
+ GetNodeUV( F, n2, n31, &checkOK ),
+ GetNodeUV( F, n3, n12, &checkOK ),
+ GetNodeUV( F, n12, n3, &checkOK ),
+ GetNodeUV( F, n23, n1, &checkOK ),
+ GetNodeUV( F, n31, n2, &checkOK )
+ };
+ AdjustByPeriod( F, uv, 6 ); // put uv[] within a period (IPAL52698)
+
+ uvAvg = GetCenterUV( uv[0],uv[1],uv[2], uv[3],uv[4],uv[5], &badTria );
+
+ if ( badTria || !checkOK )
+ force3d = true;
}
// Create a central node
const SMDS_MeshNode* SMESH_MesherHelper::GetMediumNode(const SMDS_MeshNode* n1,
const SMDS_MeshNode* n2,
- bool force3d)
+ bool force3d,
+ TopAbs_ShapeEnum expectedSupport)
{
// Find existing node
int faceID = -1, edgeID = -1;
TopoDS_Edge E; double u [2];
TopoDS_Face F; gp_XY uv[2];
- bool uvOK[2] = { false, false };
+ bool uvOK[2] = { true, true };
+ const bool useCurSubShape = ( !myShape.IsNull() && myShape.ShapeType() == TopAbs_EDGE );
- pair<int, TopAbs_ShapeEnum> pos = GetMediumPos( n1, n2, mySetElemOnShape );
- // calling GetMediumPos() with useCurSubShape=mySetElemOnShape is OK only for the
- // case where the lower dim mesh is already constructed, else, nodes on EDGEs are
- // assigned to FACE, for example.
+ pair<int, TopAbs_ShapeEnum> pos = GetMediumPos( n1, n2, useCurSubShape, expectedSupport );
// get positions of the given nodes on shapes
if ( pos.second == TopAbs_FACE )
catch ( Standard_Failure& f )
{
// issue 22502 / a node is on VERTEX not belonging to E
+ // issue 22568 / both nodes are on non-connected VERTEXes
return getMediumNodeOnComposedWire(n1,n2,force3d);
}
}
if ( myParIndex & U_periodic ) uv[1].SetCoord( 1, uv[0].Coord( 1 ));
else uv[1].SetCoord( 2, uv[0].Coord( 2 ));
}
-
TopLoc_Location loc;
Handle(Geom_Surface) S = BRep_Tool::Surface(F,loc);
gp_XY UV = GetMiddleUV( S, uv[0], uv[1] );
const SMDS_MeshNode* n2,
bool force3d)
{
- gp_Pnt middle = 0.5 * XYZ(n1) + 0.5 * XYZ(n2);
+ SMESH_TNodeXYZ p1( n1 ), p2( n2 );
+ gp_Pnt middle = 0.5 * p1 + 0.5 * p2;
SMDS_MeshNode* n12 = AddNode( middle.X(), middle.Y(), middle.Z() );
// To find position on edge and 3D position for n12,
// project <middle> to 2 edges and select projection most close to <middle>
- double u = 0, distMiddleProj = Precision::Infinite(), distXYZ[4];
- int iOkEdge = 0;
- TopoDS_Edge edges[2];
+ TopoDS_Edge bestEdge;
+ double u = 0, distMiddleProj = Precision::Infinite(), distXYZ[4], f,l;
+
+ // get shapes under the nodes
+ TopoDS_Shape shape[2];
+ int nbShapes = 0;
for ( int is2nd = 0; is2nd < 2; ++is2nd )
{
- // get an edge
const SMDS_MeshNode* n = is2nd ? n2 : n1;
- TopoDS_Shape shape = GetSubShapeByNode( n, GetMeshDS() );
- if ( shape.IsNull() || shape.ShapeType() != TopAbs_EDGE )
- continue;
+ TopoDS_Shape S = GetSubShapeByNode( n, GetMeshDS() );
+ if ( !S.IsNull() )
+ shape[ nbShapes++ ] = S;
+ }
+ // get EDGEs
+ vector< TopoDS_Shape > edges;
+ for ( int iS = 0; iS < nbShapes; ++iS )
+ {
+ switch ( shape[iS].ShapeType() ) {
+ case TopAbs_EDGE:
+ {
+ edges.push_back( shape[iS] );
+ break;
+ }
+ case TopAbs_VERTEX:
+ {
+ TopoDS_Shape edge;
+ if ( nbShapes == 2 && iS==0 && shape[1-iS].ShapeType() == TopAbs_VERTEX )
+ edge = GetCommonAncestor( shape[iS], shape[1-iS], *myMesh, TopAbs_EDGE );
- // project to get U of projection and distance from middle to projection
- TopoDS_Edge edge = edges[ is2nd ] = TopoDS::Edge( shape );
- double node2MiddleDist = middle.Distance( XYZ(n) );
- double foundU = GetNodeU( edge, n );
- CheckNodeU( edge, n12, foundU, 2*BRep_Tool::Tolerance(edge), /*force=*/true, distXYZ );
- if ( distXYZ[0] < node2MiddleDist )
+ if ( edge.IsNull() )
+ {
+ PShapeIteratorPtr eIt = GetAncestors( shape[iS], *myMesh, TopAbs_EDGE );
+ while( const TopoDS_Shape* e = eIt->next() )
+ edges.push_back( *e );
+ }
+ break;
+ }
+ case TopAbs_FACE:
{
- distMiddleProj = distXYZ[0];
- u = foundU;
- iOkEdge = is2nd;
+ if ( nbShapes == 1 || shape[1-iS].ShapeType() < TopAbs_EDGE )
+ for ( TopExp_Explorer e( shape[iS], TopAbs_EDGE ); e.More(); e.Next() )
+ edges.push_back( e.Current() );
+ break;
+ }
+ default:
+ continue;
}
}
- if ( Precision::IsInfinite( distMiddleProj ))
+ // project to get U of projection and distance from middle to projection
+ for ( size_t iE = 0; iE < edges.size(); ++iE )
{
- // both projections failed; set n12 on the edge of n1 with U of a common vertex
- TopoDS_Vertex vCommon;
- if ( TopExp::CommonVertex( edges[0], edges[1], vCommon ))
- u = BRep_Tool::Parameter( vCommon, edges[0] );
- else
+ const TopoDS_Edge& edge = TopoDS::Edge( edges[ iE ]);
+ distXYZ[0] = distMiddleProj;
+ double testU = 0;
+ CheckNodeU( edge, n12, testU, 2 * BRep_Tool::Tolerance(edge), /*force=*/true, distXYZ );
+ if ( distXYZ[0] < distMiddleProj )
{
- double f,l, u0 = GetNodeU( edges[0], n1 );
- BRep_Tool::Range( edges[0],f,l );
- u = ( fabs(u0-f) < fabs(u0-l) ) ? f : l;
+ distMiddleProj = distXYZ[0];
+ u = testU;
+ bestEdge = edge;
}
- iOkEdge = 0;
- distMiddleProj = 0;
}
-
- // move n12 to position of a successfull projection
- double tol = BRep_Tool::Tolerance(edges[ iOkEdge ]);
- if ( !force3d && distMiddleProj > 2*tol )
- {
- TopLoc_Location loc; double f,l;
- Handle(Geom_Curve) curve = BRep_Tool::Curve( edges[iOkEdge],loc,f,l );
- gp_Pnt p = curve->Value( u );
- GetMeshDS()->MoveNode( n12, p.X(), p.Y(), p.Z() );
- }
-
- //if ( mySetElemOnShape ) node is not elem!
+ // {
+ // // both projections failed; set n12 on the edge of n1 with U of a common vertex
+ // TopoDS_Vertex vCommon;
+ // if ( TopExp::CommonVertex( edges[0], edges[1], vCommon ))
+ // u = BRep_Tool::Parameter( vCommon, edges[0] );
+ // else
+ // {
+ // double f,l, u0 = GetNodeU( edges[0], n1 );
+ // BRep_Tool::Range( edges[0],f,l );
+ // u = ( fabs(u0-f) < fabs(u0-l) ) ? f : l;
+ // }
+ // iOkEdge = 0;
+ // distMiddleProj = 0;
+ // }
+
+ if ( !bestEdge.IsNull() )
{
- int edgeID = GetMeshDS()->ShapeToIndex( edges[iOkEdge] );
- if ( edgeID != n12->getshapeId() )
- GetMeshDS()->UnSetNodeOnShape( n12 );
- GetMeshDS()->SetNodeOnEdge(n12, edgeID, u);
+ // move n12 to position of a successfull projection
+ //double tol = BRep_Tool::Tolerance(edges[ iOkEdge ]);
+ if ( !force3d /*&& distMiddleProj > 2*tol*/ )
+ {
+ TopLoc_Location loc;
+ Handle(Geom_Curve) curve = BRep_Tool::Curve( bestEdge,loc,f,l );
+ gp_Pnt p = curve->Value( u ).Transformed( loc );
+ GetMeshDS()->MoveNode( n12, p.X(), p.Y(), p.Z() );
+ }
+ //if ( mySetElemOnShape ) node is not elem!
+ {
+ int edgeID = GetMeshDS()->ShapeToIndex( bestEdge );
+ if ( edgeID != n12->getshapeId() )
+ GetMeshDS()->UnSetNodeOnShape( n12 );
+ GetMeshDS()->SetNodeOnEdge(n12, edgeID, u);
+ }
}
myTLinkNodeMap.insert( make_pair( SMESH_TLink(n1,n2), n12 ));
elem = meshDS->AddFace(n1, n2, n3);
}
else {
- const SMDS_MeshNode* n12 = GetMediumNode(n1,n2,force3d);
- const SMDS_MeshNode* n23 = GetMediumNode(n2,n3,force3d);
- const SMDS_MeshNode* n31 = GetMediumNode(n3,n1,force3d);
+ const SMDS_MeshNode* n12 = GetMediumNode( n1, n2, force3d, TopAbs_FACE );
+ const SMDS_MeshNode* n23 = GetMediumNode( n2, n3, force3d, TopAbs_FACE );
+ const SMDS_MeshNode* n31 = GetMediumNode( n3, n1, force3d, TopAbs_FACE );
if(myCreateBiQuadratic)
{
const SMDS_MeshNode* nCenter = GetCentralNode(n1, n2, n3, n12, n23, n31, force3d);
elem = meshDS->AddFace(n1, n2, n3, n4);
}
else {
- const SMDS_MeshNode* n12 = GetMediumNode(n1,n2,force3d);
- const SMDS_MeshNode* n23 = GetMediumNode(n2,n3,force3d);
- const SMDS_MeshNode* n34 = GetMediumNode(n3,n4,force3d);
- const SMDS_MeshNode* n41 = GetMediumNode(n4,n1,force3d);
+ const SMDS_MeshNode* n12 = GetMediumNode( n1, n2, force3d, TopAbs_FACE );
+ const SMDS_MeshNode* n23 = GetMediumNode( n2, n3, force3d, TopAbs_FACE );
+ const SMDS_MeshNode* n34 = GetMediumNode( n3, n4, force3d, TopAbs_FACE );
+ const SMDS_MeshNode* n41 = GetMediumNode( n4, n1, force3d, TopAbs_FACE );
if(myCreateBiQuadratic)
{
const SMDS_MeshNode* nCenter = GetCentralNode(n1, n2, n3, n4, n12, n23, n34, n41, force3d);
SMESHDS_Mesh * meshDS = GetMeshDS();
SMDS_MeshFace* elem = 0;
- if(!myCreateQuadratic) {
+ if(!myCreateQuadratic)
+ {
if(id)
elem = meshDS->AddPolygonalFaceWithID(nodes, id);
else
elem = meshDS->AddPolygonalFace(nodes);
}
- else {
- vector<const SMDS_MeshNode*> newNodes;
+ else
+ {
+ vector<const SMDS_MeshNode*> newNodes( nodes.size() * 2 );
+ newNodes = nodes;
for ( int i = 0; i < nodes.size(); ++i )
{
const SMDS_MeshNode* n1 = nodes[i];
const SMDS_MeshNode* n2 = nodes[(i+1)%nodes.size()];
- const SMDS_MeshNode* n12 = GetMediumNode(n1,n2,force3d);
- newNodes.push_back( n1 );
+ const SMDS_MeshNode* n12 = GetMediumNode( n1, n2, force3d, TopAbs_FACE );
newNodes.push_back( n12 );
}
if(id)
- elem = meshDS->AddPolygonalFaceWithID(newNodes, id);
+ elem = meshDS->AddQuadPolygonalFaceWithID(newNodes, id);
else
- elem = meshDS->AddPolygonalFace(newNodes);
+ elem = meshDS->AddQuadPolygonalFace(newNodes);
}
if ( mySetElemOnShape && myShapeID > 0 )
meshDS->SetMeshElementOnShape( elem, myShapeID );
elem = meshDS->AddVolume(n1, n2, n3, n4, n5, n6);
}
else {
- const SMDS_MeshNode* n12 = GetMediumNode(n1,n2,force3d);
- const SMDS_MeshNode* n23 = GetMediumNode(n2,n3,force3d);
- const SMDS_MeshNode* n31 = GetMediumNode(n3,n1,force3d);
+ const SMDS_MeshNode* n12 = GetMediumNode( n1, n2, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n23 = GetMediumNode( n2, n3, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n31 = GetMediumNode( n3, n1, force3d, TopAbs_SOLID );
- const SMDS_MeshNode* n45 = GetMediumNode(n4,n5,force3d);
- const SMDS_MeshNode* n56 = GetMediumNode(n5,n6,force3d);
- const SMDS_MeshNode* n64 = GetMediumNode(n6,n4,force3d);
+ const SMDS_MeshNode* n45 = GetMediumNode( n4, n5, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n56 = GetMediumNode( n5, n6, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n64 = GetMediumNode( n6, n4, force3d, TopAbs_SOLID );
- const SMDS_MeshNode* n14 = GetMediumNode(n1,n4,force3d);
- const SMDS_MeshNode* n25 = GetMediumNode(n2,n5,force3d);
- const SMDS_MeshNode* n36 = GetMediumNode(n3,n6,force3d);
+ const SMDS_MeshNode* n14 = GetMediumNode( n1, n4, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n25 = GetMediumNode( n2, n5, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n36 = GetMediumNode( n3, n6, force3d, TopAbs_SOLID );
if(id)
- elem = meshDS->AddVolumeWithID(n1, n2, n3, n4, n5, n6,
+ elem = meshDS->AddVolumeWithID(n1, n2, n3, n4, n5, n6,
n12, n23, n31, n45, n56, n64, n14, n25, n36, id);
else
elem = meshDS->AddVolume(n1, n2, n3, n4, n5, n6,
const SMDS_MeshNode* n2,
const SMDS_MeshNode* n3,
const SMDS_MeshNode* n4,
- const int id,
+ const int id,
const bool force3d)
{
SMESHDS_Mesh * meshDS = GetMeshDS();
elem = meshDS->AddVolume(n1, n2, n3, n4);
}
else {
- const SMDS_MeshNode* n12 = GetMediumNode(n1,n2,force3d);
- const SMDS_MeshNode* n23 = GetMediumNode(n2,n3,force3d);
- const SMDS_MeshNode* n31 = GetMediumNode(n3,n1,force3d);
+ const SMDS_MeshNode* n12 = GetMediumNode( n1, n2, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n23 = GetMediumNode( n2, n3, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n31 = GetMediumNode( n3, n1, force3d, TopAbs_SOLID );
- const SMDS_MeshNode* n14 = GetMediumNode(n1,n4,force3d);
- const SMDS_MeshNode* n24 = GetMediumNode(n2,n4,force3d);
- const SMDS_MeshNode* n34 = GetMediumNode(n3,n4,force3d);
+ const SMDS_MeshNode* n14 = GetMediumNode( n1, n4, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n24 = GetMediumNode( n2, n4, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n34 = GetMediumNode( n3, n4, force3d, TopAbs_SOLID );
if(id)
elem = meshDS->AddVolumeWithID(n1, n2, n3, n4, n12, n23, n31, n14, n24, n34, id);
const SMDS_MeshNode* n3,
const SMDS_MeshNode* n4,
const SMDS_MeshNode* n5,
- const int id,
+ const int id,
const bool force3d)
{
SMDS_MeshVolume* elem = 0;
elem = GetMeshDS()->AddVolume(n1, n2, n3, n4, n5);
}
else {
- const SMDS_MeshNode* n12 = GetMediumNode(n1,n2,force3d);
- const SMDS_MeshNode* n23 = GetMediumNode(n2,n3,force3d);
- const SMDS_MeshNode* n34 = GetMediumNode(n3,n4,force3d);
- const SMDS_MeshNode* n41 = GetMediumNode(n4,n1,force3d);
+ const SMDS_MeshNode* n12 = GetMediumNode( n1, n2, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n23 = GetMediumNode( n2, n3, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n34 = GetMediumNode( n3, n4, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n41 = GetMediumNode( n4, n1, force3d, TopAbs_SOLID );
- const SMDS_MeshNode* n15 = GetMediumNode(n1,n5,force3d);
- const SMDS_MeshNode* n25 = GetMediumNode(n2,n5,force3d);
- const SMDS_MeshNode* n35 = GetMediumNode(n3,n5,force3d);
- const SMDS_MeshNode* n45 = GetMediumNode(n4,n5,force3d);
+ const SMDS_MeshNode* n15 = GetMediumNode( n1, n5, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n25 = GetMediumNode( n2, n5, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n35 = GetMediumNode( n3, n5, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n45 = GetMediumNode( n4, n5, force3d, TopAbs_SOLID );
if(id)
elem = GetMeshDS()->AddVolumeWithID ( n1, n2, n3, n4, n5,
//=======================================================================
//function : AddVolume
-//purpose : Creates bi-quadratic, quadratic or linear hexahedron
+//purpose : Creates tri-quadratic, quadratic or linear hexahedron
//=======================================================================
SMDS_MeshVolume* SMESH_MesherHelper::AddVolume(const SMDS_MeshNode* n1,
elem = meshDS->AddVolume(n1, n2, n3, n4, n5, n6, n7, n8);
}
else {
- const SMDS_MeshNode* n12 = GetMediumNode(n1,n2,force3d);
- const SMDS_MeshNode* n23 = GetMediumNode(n2,n3,force3d);
- const SMDS_MeshNode* n34 = GetMediumNode(n3,n4,force3d);
- const SMDS_MeshNode* n41 = GetMediumNode(n4,n1,force3d);
-
- const SMDS_MeshNode* n56 = GetMediumNode(n5,n6,force3d);
- const SMDS_MeshNode* n67 = GetMediumNode(n6,n7,force3d);
- const SMDS_MeshNode* n78 = GetMediumNode(n7,n8,force3d);
- const SMDS_MeshNode* n85 = GetMediumNode(n8,n5,force3d);
-
- const SMDS_MeshNode* n15 = GetMediumNode(n1,n5,force3d);
- const SMDS_MeshNode* n26 = GetMediumNode(n2,n6,force3d);
- const SMDS_MeshNode* n37 = GetMediumNode(n3,n7,force3d);
- const SMDS_MeshNode* n48 = GetMediumNode(n4,n8,force3d);
- if(myCreateBiQuadratic)
+ const SMDS_MeshNode* n12 = GetMediumNode( n1, n2, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n23 = GetMediumNode( n2, n3, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n34 = GetMediumNode( n3, n4, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n41 = GetMediumNode( n4, n1, force3d, TopAbs_SOLID );
+
+ const SMDS_MeshNode* n56 = GetMediumNode( n5, n6, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n67 = GetMediumNode( n6, n7, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n78 = GetMediumNode( n7, n8, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n85 = GetMediumNode( n8, n5, force3d, TopAbs_SOLID );
+
+ const SMDS_MeshNode* n15 = GetMediumNode( n1, n5, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n26 = GetMediumNode( n2, n6, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n37 = GetMediumNode( n3, n7, force3d, TopAbs_SOLID );
+ const SMDS_MeshNode* n48 = GetMediumNode( n4, n8, force3d, TopAbs_SOLID );
+ if ( myCreateBiQuadratic )
{
- const SMDS_MeshNode* n1234 = GetCentralNode(n1,n2,n3,n4,n12,n23,n34,n41,force3d);
- const SMDS_MeshNode* n1256 = GetCentralNode(n1,n2,n5,n6,n12,n26,n56,n15,force3d);
- const SMDS_MeshNode* n2367 = GetCentralNode(n2,n3,n6,n7,n23,n37,n67,n26,force3d);
- const SMDS_MeshNode* n3478 = GetCentralNode(n3,n4,n7,n8,n34,n48,n78,n37,force3d);
- const SMDS_MeshNode* n1458 = GetCentralNode(n1,n4,n5,n8,n41,n48,n15,n85,force3d);
- const SMDS_MeshNode* n5678 = GetCentralNode(n5,n6,n7,n8,n56,n67,n78,n85,force3d);
+ const SMDS_MeshNode* n1234 = GetCentralNode( n1,n2,n3,n4,n12,n23,n34,n41,force3d );
+ const SMDS_MeshNode* n1256 = GetCentralNode( n1,n2,n5,n6,n12,n26,n56,n15,force3d );
+ const SMDS_MeshNode* n2367 = GetCentralNode( n2,n3,n6,n7,n23,n37,n67,n26,force3d );
+ const SMDS_MeshNode* n3478 = GetCentralNode( n3,n4,n7,n8,n34,n48,n78,n37,force3d );
+ const SMDS_MeshNode* n1458 = GetCentralNode( n1,n4,n5,n8,n41,n48,n15,n85,force3d );
+ const SMDS_MeshNode* n5678 = GetCentralNode( n5,n6,n7,n8,n56,n67,n78,n85,force3d );
vector<gp_XYZ> pointsOnShapes( SMESH_Block::ID_Shell );
pointsOnShapes[ SMESH_Block::ID_Ex11 ] = SMESH_TNodeXYZ( n78 );
pointsOnShapes[ SMESH_Block::ID_E0y1 ] = SMESH_TNodeXYZ( n12 );
pointsOnShapes[ SMESH_Block::ID_E1y1 ] = SMESH_TNodeXYZ( n56 );
- pointsOnShapes[ SMESH_Block::ID_E00z ] = SMESH_TNodeXYZ( n41 );
- pointsOnShapes[ SMESH_Block::ID_E10z ] = SMESH_TNodeXYZ( n85 );
- pointsOnShapes[ SMESH_Block::ID_E01z ] = SMESH_TNodeXYZ( n23 );
+ pointsOnShapes[ SMESH_Block::ID_E00z ] = SMESH_TNodeXYZ( n41 );
+ pointsOnShapes[ SMESH_Block::ID_E10z ] = SMESH_TNodeXYZ( n85 );
+ pointsOnShapes[ SMESH_Block::ID_E01z ] = SMESH_TNodeXYZ( n23 );
pointsOnShapes[ SMESH_Block::ID_E11z ] = SMESH_TNodeXYZ( n67 );
pointsOnShapes[ SMESH_Block::ID_Fxy0 ] = SMESH_TNodeXYZ( n3478 );
pointsOnShapes[ SMESH_Block::ID_Fxy1 ] = SMESH_TNodeXYZ( n1256 );
- pointsOnShapes[ SMESH_Block::ID_Fx0z ] = SMESH_TNodeXYZ( n1458 );
- pointsOnShapes[ SMESH_Block::ID_Fx1z ] = SMESH_TNodeXYZ( n2367 );
- pointsOnShapes[ SMESH_Block::ID_F0yz ] = SMESH_TNodeXYZ( n1234 );
+ pointsOnShapes[ SMESH_Block::ID_Fx0z ] = SMESH_TNodeXYZ( n1458 );
+ pointsOnShapes[ SMESH_Block::ID_Fx1z ] = SMESH_TNodeXYZ( n2367 );
+ pointsOnShapes[ SMESH_Block::ID_F0yz ] = SMESH_TNodeXYZ( n1234 );
pointsOnShapes[ SMESH_Block::ID_F1yz ] = SMESH_TNodeXYZ( n5678 );
gp_XYZ centerCube(0.5, 0.5, 0.5);
meshDS->AddNode( nCenterElem.X(), nCenterElem.Y(), nCenterElem.Z() );
meshDS->SetNodeInVolume( nCenter, myShapeID );
- if(id)
+ if(id)
elem = meshDS->AddVolumeWithID(n1, n2, n3, n4, n5, n6, n7, n8,
- n12, n23, n34, n41, n56, n67,
- n78, n85, n15, n26, n37, n48,
- n1234, n1256, n2367, n3478, n1458, n5678, nCenter, id);
+ n12, n23, n34, n41, n56, n67,
+ n78, n85, n15, n26, n37, n48,
+ n1234, n1256, n2367, n3478, n1458, n5678, nCenter, id);
else
elem = meshDS->AddVolume(n1, n2, n3, n4, n5, n6, n7, n8,
- n12, n23, n34, n41, n56, n67,
- n78, n85, n15, n26, n37, n48,
- n1234, n1256, n2367, n3478, n1458, n5678, nCenter);
+ n12, n23, n34, n41, n56, n67,
+ n78, n85, n15, n26, n37, n48,
+ n1234, n1256, n2367, n3478, n1458, n5678, nCenter);
}
else
{
if(id)
elem = meshDS->AddVolumeWithID(n1, n2, n3, n4, n5, n6, n7, n8,
- n12, n23, n34, n41, n56, n67,
- n78, n85, n15, n26, n37, n48, id);
+ n12, n23, n34, n41, n56, n67,
+ n78, n85, n15, n26, n37, n48, id);
else
elem = meshDS->AddVolume(n1, n2, n3, n4, n5, n6, n7, n8,
- n12, n23, n34, n41, n56, n67,
- n78, n85, n15, n26, n37, n48);
+ n12, n23, n34, n41, n56, n67,
+ n78, n85, n15, n26, n37, n48);
}
}
if ( mySetElemOnShape && myShapeID > 0 )
// if ( n1->GetPosition()->GetTypeOfPosition() != SMDS_TOP_3DSPACE &&
// n2->GetPosition()->GetTypeOfPosition() != SMDS_TOP_3DSPACE )
{
- const SMDS_MeshNode* n12 = GetMediumNode(n1,n2,force3d);
+ const SMDS_MeshNode* n12 = GetMediumNode( n1, n2, force3d, TopAbs_SOLID );
newNodes.push_back( n12 );
newQuantities.back()++;
}
for ( int iE = 0; edge != theBaseSide.end(); ++edge, ++iE )
{
map< double, const SMDS_MeshNode*> sortedBaseNN;
- SMESH_Algo::GetSortedNodesOnEdge( theMesh, *edge,/*noMedium=*/true, sortedBaseNN);
+ SMESH_Algo::GetSortedNodesOnEdge( theMesh, *edge,/*noMedium=*/true, sortedBaseNN );
+
+ map< double, const SMDS_MeshNode*>::iterator u_n;
+ // pb with mesh_Projection_2D_00/A1 fixed by adding expectedSupport arg to GetMediumPos()
+ // so the following solution is commented (hope forever :)
+ //
+ // SMESH_Algo::GetSortedNodesOnEdge( theMesh, *edge,/*noMedium=*/true, sortedBaseNN,
+ // // SMDSAbs_Edge here is needed to be coherent with
+ // // StdMeshers_FaceSide used by Quadrangle to get nodes
+ // // on EDGE; else pb in mesh_Projection_2D_00/A1 where a
+ // // medium node on EDGE is medium in a triangle but not
+ // // in a segment
+ // SMDSAbs_Edge );
+ // if ( faceSubMesh->GetElements()->next()->IsQuadratic() )
+ // // filter off nodes medium in faces on theFace (same pb with mesh_Projection_2D_00/A1)
+ // for ( u_n = sortedBaseNN.begin(); u_n != sortedBaseNN.end() ; )
+ // {
+ // const SMDS_MeshNode* node = u_n->second;
+ // SMDS_ElemIteratorPtr faceIt = node->GetInverseElementIterator( SMDSAbs_Face );
+ // if ( faceIt->more() && node ) {
+ // const SMDS_MeshElement* face = faceIt->next();
+ // if ( faceSubMesh->Contains( face ) && face->IsMediumNode( node ))
+ // node = 0;
+ // }
+ // if ( !node )
+ // sortedBaseNN.erase( u_n++ );
+ // else
+ // ++u_n;
+ // }
if ( sortedBaseNN.empty() ) continue;
- map< double, const SMDS_MeshNode*>::iterator u_n = sortedBaseNN.begin();
+ u_n = sortedBaseNN.begin();
if ( theProxyMesh ) // from sortedBaseNN remove nodes not shared by faces of faceSubMesh
{
const SMDS_MeshNode* n1 = (++sortedBaseNN.begin())->second;
while ( ++u_n != sortedBaseNN.end() && !isNodeInSubMesh( u_n->second, faceSubMesh ));
sortedBaseNN.erase( sortedBaseNN.begin(), u_n );
}
- if ( u_n = --sortedBaseNN.end(), !isNodeInSubMesh( u_n->second, faceSubMesh ))
- {
- while ( u_n != sortedBaseNN.begin() && !isNodeInSubMesh( (--u_n)->second, faceSubMesh ));
- sortedBaseNN.erase( ++u_n, sortedBaseNN.end() );
- }
+ if ( !sortedBaseNN.empty() )
+ if ( u_n = --sortedBaseNN.end(), !isNodeInSubMesh( u_n->second, faceSubMesh ))
+ {
+ while ( u_n != sortedBaseNN.begin() && !isNodeInSubMesh( (--u_n)->second, faceSubMesh ));
+ sortedBaseNN.erase( ++u_n, sortedBaseNN.end() );
+ }
if ( sortedBaseNN.empty() ) continue;
}
u2nn->second.push_back( u_n->second );
}
}
- if ( theParam2ColumnMap.empty() )
+ if ( theParam2ColumnMap.size() < 2 )
return false;
}
//=======================================================================
//function : IsStructured
-//purpose : Return true if 2D mesh on FACE is structured
+//purpose : Return true if 2D mesh on FACE is a structured rectangle
//=======================================================================
bool SMESH_MesherHelper::IsStructured( SMESH_subMesh* faceSM )
faceAnalyser.SetSubShape( faceSM->GetSubShape() );
// rotate edges to get the first node being at corner
- // (in principle it's not necessary but so far none SALOME algo can make
+ // (in principle it's not necessary because so far none SALOME algo can make
// such a structured mesh that all corner nodes are not on VERTEXes)
bool isCorner = false;
int nbRemainEdges = nbEdgesInWires.front();
return true;
}
+//=======================================================================
+//function : IsDistorted2D
+//purpose : Return true if 2D mesh on FACE is ditorted
+//=======================================================================
+
+bool SMESH_MesherHelper::IsDistorted2D( SMESH_subMesh* faceSM,
+ bool checkUV)
+{
+ if ( !faceSM || faceSM->GetSubShape().ShapeType() != TopAbs_FACE )
+ return false;
+
+ bool haveBadFaces = false;
+
+ SMESH_MesherHelper helper( *faceSM->GetFather() );
+ helper.SetSubShape( faceSM->GetSubShape() );
+
+ const TopoDS_Face& F = TopoDS::Face( faceSM->GetSubShape() );
+ SMESHDS_SubMesh* smDS = helper.GetMeshDS()->MeshElements( F );
+ if ( !smDS || smDS->NbElements() == 0 ) return false;
+
+ SMDS_ElemIteratorPtr faceIt = smDS->GetElements();
+ double prevArea = 0;
+ vector< const SMDS_MeshNode* > nodes;
+ vector< gp_XY > uv;
+ bool* toCheckUV = checkUV ? & checkUV : 0;
+ while ( faceIt->more() && !haveBadFaces )
+ {
+ const SMDS_MeshElement* face = faceIt->next();
+
+ // get nodes
+ nodes.resize( face->NbCornerNodes() );
+ SMDS_MeshElement::iterator n = face->begin_nodes();
+ for ( size_t i = 0; i < nodes.size(); ++n, ++i )
+ nodes[ i ] = *n;
+
+ // avoid elems on degenarate shapes as UV on them can be wrong
+ if ( helper.HasDegeneratedEdges() )
+ {
+ bool isOnDegen = false;
+ for ( size_t i = 0; ( i < nodes.size() && !isOnDegen ); ++i )
+ isOnDegen = helper.IsDegenShape( nodes[ i ]->getshapeId() );
+ if ( isOnDegen )
+ continue;
+ }
+ // prepare to getting UVs
+ const SMDS_MeshNode* inFaceNode = 0;
+ if ( helper.HasSeam() ) {
+ for ( size_t i = 0; ( i < nodes.size() && !inFaceNode ); ++i )
+ if ( !helper.IsSeamShape( nodes[ i ]->getshapeId() ))
+ inFaceNode = nodes[ i ];
+ if ( !inFaceNode )
+ continue;
+ }
+ // get UVs
+ uv.resize( nodes.size() );
+ for ( size_t i = 0; i < nodes.size(); ++i )
+ uv[ i ] = helper.GetNodeUV( F, nodes[ i ], inFaceNode, toCheckUV );
+
+ // compare orientation of triangles
+ double faceArea = 0;
+ for ( int iT = 0, nbT = nodes.size()-2; iT < nbT; ++iT )
+ {
+ gp_XY v1 = uv[ iT+1 ] - uv[ 0 ];
+ gp_XY v2 = uv[ iT+2 ] - uv[ 0 ];
+ faceArea += v2 ^ v1;
+ }
+ haveBadFaces = ( faceArea * prevArea < 0 );
+ prevArea = faceArea;
+ }
+
+ return haveBadFaces;
+}
+
//================================================================================
/*!
* \brief Find out elements orientation on a geometrical face
if ( !aSubMeshDSFace )
return isReversed;
- // find an element with a good normal
- gp_Vec Ne;
- bool normalOK = false;
- gp_XY uv;
+ // find an element on a bounday of theFace
SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
- while ( !normalOK && iteratorElem->more() ) // loop on elements on theFace
+ const SMDS_MeshNode* nn[2];
+ while ( iteratorElem->more() ) // loop on elements on theFace
{
const SMDS_MeshElement* elem = iteratorElem->next();
- if ( elem && elem->NbCornerNodes() > 2 )
+ if ( ! elem ) continue;
+
+ // look for 2 nodes on EDGE
+ int nbNodes = elem->NbCornerNodes();
+ nn[0] = elem->GetNode( nbNodes-1 );
+ for ( int iN = 0; iN < nbNodes; ++iN )
{
- SMESH_TNodeXYZ nPnt[3];
- SMDS_ElemIteratorPtr nodesIt = elem->nodesIterator();
- int iNodeOnFace = 0, iPosDim = SMDS_TOP_VERTEX;
- for ( int iN = 0; nodesIt->more() && iN < 3; ++iN) // loop on nodes
+ nn[1] = elem->GetNode( iN );
+ if ( nn[0]->GetPosition()->GetDim() < 2 &&
+ nn[1]->GetPosition()->GetDim() < 2 )
{
- nPnt[ iN ] = nodesIt->next();
- if ( nPnt[ iN ]._node->GetPosition()->GetTypeOfPosition() > iPosDim )
+ TopoDS_Shape s0 = GetSubShapeByNode( nn[0], GetMeshDS() );
+ TopoDS_Shape s1 = GetSubShapeByNode( nn[1], GetMeshDS() );
+ TopoDS_Shape E = GetCommonAncestor( s0, s1, *myMesh, TopAbs_EDGE );
+ if ( !E.IsNull() && !s0.IsSame( s1 ))
{
- iNodeOnFace = iN;
- iPosDim = nPnt[ iN ]._node->GetPosition()->GetTypeOfPosition();
+ // is E seam edge?
+ int nb = 0;
+ for ( TopExp_Explorer exp( theFace, TopAbs_EDGE ); exp.More(); exp.Next() )
+ if ( E.IsSame( exp.Current() )) {
+ ++nb;
+ E = exp.Current(); // to know orientation
+ }
+ if ( nb == 1 )
+ {
+ bool ok = true;
+ double u0 = GetNodeU( TopoDS::Edge( E ), nn[0], nn[1], &ok );
+ double u1 = GetNodeU( TopoDS::Edge( E ), nn[1], nn[0], &ok );
+ if ( ok )
+ {
+ isReversed = ( u0 > u1 );
+ if ( E.Orientation() == TopAbs_REVERSED )
+ isReversed = !isReversed;
+ return isReversed;
+ }
+ }
}
}
- // compute normal
- gp_Vec v01( nPnt[0], nPnt[1] ), v02( nPnt[0], nPnt[2] );
- if ( v01.SquareMagnitude() > RealSmall() &&
- v02.SquareMagnitude() > RealSmall() )
+ nn[0] = nn[1];
+ }
+ }
+
+ // find an element with a good normal
+ gp_Vec Ne;
+ bool normalOK = false;
+ gp_XY uv;
+ iteratorElem = aSubMeshDSFace->GetElements();
+ while ( !normalOK && iteratorElem->more() ) // loop on elements on theFace
+ {
+ const SMDS_MeshElement* elem = iteratorElem->next();
+ if ( ! SMESH_MeshAlgos::FaceNormal( elem, const_cast<gp_XYZ&>( Ne.XYZ() ), /*normalized=*/0 ))
+ continue;
+ normalOK = true;
+
+ // get UV of a node inside theFACE
+ SMDS_ElemIteratorPtr nodesIt = elem->nodesIterator();
+ const SMDS_MeshNode* nInFace = 0;
+ int iPosDim = SMDS_TOP_VERTEX;
+ while ( nodesIt->more() ) // loop on nodes
+ {
+ const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nodesIt->next() );
+ if ( n->GetPosition()->GetTypeOfPosition() >= iPosDim )
{
- Ne = v01 ^ v02;
- if (( normalOK = ( Ne.SquareMagnitude() > RealSmall() )))
- uv = GetNodeUV( theFace, nPnt[iNodeOnFace]._node, 0, &normalOK );
+ nInFace = n;
+ iPosDim = n->GetPosition()->GetTypeOfPosition();
}
}
+ uv = GetNodeUV( theFace, nInFace, 0, &normalOK );
}
if ( !normalOK )
return isReversed;
// if ( surf.IsNull() || surf->Continuity() < GeomAbs_C1 )
// some surfaces not detected as GeomAbs_C1 are nevertheless correct for meshing
if ( surf.IsNull() || surf->Continuity() < GeomAbs_C0 )
- {
- if (!surf.IsNull())
- MESSAGE("surf->Continuity() < GeomAbs_C1 " << (surf->Continuity() < GeomAbs_C1));
- return isReversed;
- }
+ return isReversed;
+
gp_Vec d1u, d1v; gp_Pnt p;
surf->D1( uv.X(), uv.Y(), p, d1u, d1v );
gp_Vec Nf = (d1u ^ d1v).Transformed( loc );
(shape.ShapeType() == TopAbs_COMPOUND && aMesh->GetMeshDS()->IsGroupOfSubShapes( shape ));
}
+//=======================================================================
+//function : IsBlock
+//purpose :
+//=======================================================================
+
+bool SMESH_MesherHelper::IsBlock( const TopoDS_Shape& shape )
+{
+ if ( shape.IsNull() )
+ return false;
+
+ TopoDS_Shell shell;
+ TopExp_Explorer exp( shape, TopAbs_SHELL );
+ if ( !exp.More() ) return false;
+ shell = TopoDS::Shell( exp.Current() );
+ if ( exp.Next(), exp.More() ) return false;
+
+ TopoDS_Vertex v;
+ TopTools_IndexedMapOfOrientedShape map;
+ return SMESH_Block::FindBlockShapes( shell, v, v, map );
+}
+
+
//================================================================================
/*!
* \brief Return maximal tolerance of shape
return tol;
}
+//================================================================================
+/*!
+ * \brief Return MaxTolerance( face ), probably cached
+ */
+//================================================================================
+
+double SMESH_MesherHelper::getFaceMaxTol( const TopoDS_Shape& face ) const
+{
+ int faceID = GetMeshDS()->ShapeToIndex( face );
+
+ SMESH_MesherHelper* me = const_cast< SMESH_MesherHelper* >( this );
+ double & tol = me->myFaceMaxTol.insert( make_pair( faceID, -1. )).first->second;
+ if ( tol < 0 )
+ tol = MaxTolerance( face );
+
+ return tol;
+}
+
//================================================================================
/*!
* \brief Return an angle between two EDGEs sharing a common VERTEX with reference
*/
//================================================================================
-double SMESH_MesherHelper::GetAngle( const TopoDS_Edge & theE1,
- const TopoDS_Edge & theE2,
- const TopoDS_Face & theFace)
+double SMESH_MesherHelper::GetAngle( const TopoDS_Edge & theE1,
+ const TopoDS_Edge & theE2,
+ const TopoDS_Face & theFace,
+ const TopoDS_Vertex & theCommonV,
+ gp_Vec* theFaceNormal)
{
double angle = 1e100;
try
{
- TopoDS_Vertex vCommon;
- if ( !TopExp::CommonVertex( theE1, theE2, vCommon ))
- return angle;
double f,l;
Handle(Geom_Curve) c1 = BRep_Tool::Curve( theE1, f,l );
Handle(Geom_Curve) c2 = BRep_Tool::Curve( theE2, f,l );
Handle(Geom2d_Curve) c2d1 = BRep_Tool::CurveOnSurface( theE1, theFace, f,l );
Handle(Geom_Surface) surf = BRep_Tool::Surface( theFace );
- double p1 = BRep_Tool::Parameter( vCommon, theE1 );
- double p2 = BRep_Tool::Parameter( vCommon, theE2 );
+ double p1 = BRep_Tool::Parameter( theCommonV, theE1 );
+ double p2 = BRep_Tool::Parameter( theCommonV, theE2 );
if ( c1.IsNull() || c2.IsNull() )
return angle;
gp_XY uv = c2d1->Value( p1 ).XY();
gp_Vec vec1, vec2, vecRef = du ^ dv;
int nbLoops = 0;
double p1tmp = p1;
- while ( vecRef.SquareMagnitude() < std::numeric_limits<double>::min() )
+ while ( vecRef.SquareMagnitude() < 1e-25 )
{
double dp = ( l - f ) / 1000.;
- p1tmp += dp * (( Abs( p1 - f ) > Abs( p1 - l )) ? +1. : -1.);
+ p1tmp += dp * (( Abs( p1 - f ) > Abs( p1 - l )) ? -1. : +1.);
uv = c2d1->Value( p1tmp ).XY();
surf->D1( uv.X(), uv.Y(), p, du, dv );
vecRef = du ^ dv;
}
if ( theFace.Orientation() == TopAbs_REVERSED )
vecRef.Reverse();
+ if ( theFaceNormal ) *theFaceNormal = vecRef;
+
c1->D1( p1, p, vec1 );
c2->D1( p2, p, vec2 );
- TopoDS_Face F = theFace;
- if ( F.Orientation() == TopAbs_INTERNAL )
- F.Orientation( TopAbs_FORWARD );
+ // TopoDS_Face F = theFace;
+ // if ( F.Orientation() == TopAbs_INTERNAL )
+ // F.Orientation( TopAbs_FORWARD );
if ( theE1.Orientation() /*GetSubShapeOri( F, theE1 )*/ == TopAbs_REVERSED )
vec1.Reverse();
if ( theE2.Orientation() /*GetSubShapeOri( F, theE2 )*/ == TopAbs_REVERSED )
vec2.Reverse();
angle = vec1.AngleWithRef( vec2, vecRef );
+
+ if ( Abs ( angle ) >= 0.99 * M_PI )
+ {
+ BRep_Tool::Range( theE1, f, l );
+ p1 += 1e-7 * ( p1-f < l-p1 ? +1. : -1. );
+ c1->D1( p1, p, vec1 );
+ if ( theE1.Orientation() == TopAbs_REVERSED )
+ vec1.Reverse();
+ BRep_Tool::Range( theE2, f, l );
+ p2 += 1e-7 * ( p2-f < l-p2 ? +1. : -1. );
+ c2->D1( p2, p, vec2 );
+ if ( theE2.Orientation() == TopAbs_REVERSED )
+ vec2.Reverse();
+ angle = vec1.AngleWithRef( vec2, vecRef );
+ }
}
catch (...)
{
return TopAbs_SHAPE;
}
+//================================================================================
+/*!
+ * \brief Returns a shape, to which a hypothesis used to mesh a given shape is assigned
+ * \param [in] hyp - the hypothesis
+ * \param [in] shape - the shape, for meshing which the \a hyp is used
+ * \param [in] mesh - the mesh
+ * \return TopoDS_Shape - the shape the \a hyp is assigned to
+ */
+//================================================================================
+
+TopoDS_Shape SMESH_MesherHelper::GetShapeOfHypothesis( const SMESHDS_Hypothesis * hyp,
+ const TopoDS_Shape& shape,
+ SMESH_Mesh* mesh)
+{
+ const SMESH_Hypothesis* h = static_cast<const SMESH_Hypothesis*>( hyp );
+ SMESH_HypoFilter hypFilter( SMESH_HypoFilter::Is( h ));
+
+ TopoDS_Shape shapeOfHyp;
+ mesh->GetHypothesis( shape, hypFilter, /*checkAncestors=*/true, &shapeOfHyp );
+ return shapeOfHyp;
+}
+
//=======================================================================
//function : IsQuadraticMesh
//purpose : Check mesh without geometry for: if all elements on this shape are quadratic,
TopoDS_Shape commonAnc;
if ( !shape1.IsNull() && !shape2.IsNull() )
{
+ if ( shape1.ShapeType() == ancestorType && IsSubShape( shape2, shape1 ))
+ return shape1;
+ if ( shape2.ShapeType() == ancestorType && IsSubShape( shape1, shape2 ))
+ return shape2;
+
PShapeIteratorPtr ancIt = GetAncestors( shape1, mesh, ancestorType );
while ( const TopoDS_Shape* anc = ancIt->next() )
if ( IsSubShape( shape2, *anc ))
mutable vector<const QFace* > _faces;
mutable gp_Vec _nodeMove;
mutable int _nbMoves;
+ mutable bool _is2dFixed; // is moved along surface or in 3D
QLink(const SMDS_MeshNode* n1, const SMDS_MeshNode* n2, const SMDS_MeshNode* nm):
SMESH_TLink( n1,n2 ), _mediumNode(nm), _nodeMove(0,0,0), _nbMoves(0) {
_faces.reserve(4);
- //if ( MediumPos() != SMDS_TOP_3DSPACE )
- _nodeMove = MediumPnt() - MiddlePnt();
+ _nodeMove = MediumPnt() - MiddlePnt();
+ _is2dFixed = ( MediumPos() != SMDS_TOP_FACE );
}
void SetContinuesFaces() const;
const QFace* GetContinuesFace( const QFace* face ) const;
- bool OnBoundary() const;
+ bool OnBoundary() const;
gp_XYZ MiddlePnt() const { return ( XYZ( node1() ) + XYZ( node2() )) / 2.; }
gp_XYZ MediumPnt() const { return XYZ( _mediumNode ); }
- SMDS_TypeOfPosition MediumPos() const
+ SMDS_TypeOfPosition MediumPos() const
{ return _mediumNode->GetPosition()->GetTypeOfPosition(); }
- SMDS_TypeOfPosition EndPos(bool isSecond) const
+ SMDS_TypeOfPosition EndPos(bool isSecond) const
{ return (isSecond ? node2() : node1())->GetPosition()->GetTypeOfPosition(); }
const SMDS_MeshNode* EndPosNode(SMDS_TypeOfPosition pos) const
{ return EndPos(0) == pos ? node1() : EndPos(1) == pos ? node2() : 0; }
- void Move(const gp_Vec& move, bool sum=false) const
- { _nodeMove += move; _nbMoves += sum ? (_nbMoves==0) : 1; }
+ void Move(const gp_Vec& move, bool sum=false, bool is2dFixed=false) const
+ { _nodeMove += move; _nbMoves += sum ? (_nbMoves==0) : 1; _is2dFixed |= is2dFixed; }
gp_XYZ Move() const { return _nodeMove.XYZ() / _nbMoves; }
bool IsMoved() const { return (_nbMoves > 0 /*&& !IsStraight()*/); }
+ bool IsFixedOnSurface() const { return _is2dFixed; }
bool IsStraight() const
{ return isStraightLink( (XYZ(node1())-XYZ(node2())).SquareModulus(),
_nodeMove.SquareMagnitude());
double r = thePrevLen / fullLen;
gp_Vec move = linkNorm * refProj * ( 1 - r );
- theLink->Move( move, true );
+ theLink->Move( move, /*sum=*/true );
MSG(string(theStep,'.')<<" Move "<< theLink->_mediumNode->GetID()<<
" by " << refProj * ( 1 - r ) << " following " <<
}
else if ( _faces.size() > 1 ) // not found, set NULL by the first face
{
- _faces.insert( ++_faces.begin(), 0 );
+ _faces.insert( ++_faces.begin(), (QFace*) 0 );
}
}
//================================================================================
continue;
gp_XYZ edgeDir = SMESH_TNodeXYZ( nOnEdge[0] ) - SMESH_TNodeXYZ( nOnEdge[1] );
gp_XYZ edgeNorm = faceNorm ^ edgeDir;
- n = theHelper.GetMediumNode( nOnEdge[0], nOnEdge[1], true );
+ n = theHelper.GetMediumNode( nOnEdge[0], nOnEdge[1], true ); // find n, not create
gp_XYZ pN0 = SMESH_TNodeXYZ( nOnEdge[0] );
gp_XYZ pMedium = SMESH_TNodeXYZ( n ); // on-edge node location
gp_XYZ pFaceN = SMESH_TNodeXYZ( nOnFace ); // on-face node location
//BRepClass3d_SolidClassifier solidClassifier( shape );
TIDSortedElemSet checkedVols, movedNodes;
- for ( faceIt.ReInit(); faceIt.More(); faceIt.Next() ) // loop on FACEs of a SOLID
+ //for ( faceIt.ReInit(); faceIt.More(); faceIt.Next() ) // loop on FACEs of a SOLID
+ for ( size_t iF = 0; iF < concaveFaces.size(); ++iF ) // loop on concave FACEs
{
- const TopoDS_Shape& face = faceIt.Current();
+ //const TopoDS_Shape& face = faceIt.Current();
+ const TopoDS_Shape& face = concaveFaces[ iF ];
SMESHDS_SubMesh* faceSM = meshDS->MeshElements( face );
if ( !faceSM ) continue;
if ( !vertexSM ) continue;
nodeIt = vertexSM->GetNodes();
}
+ // get ids of sub-shapes of the FACE
+ set< int > subIDs;
+ SMESH_subMeshIteratorPtr smIt =
+ theHelper.GetMesh()->GetSubMesh( face )->getDependsOnIterator(/*includeSelf=*/true);
+ while ( smIt->more() )
+ subIDs.insert( smIt->next()->GetId() );
// find suspicious volumes adjacent to the FACE
vector< const SMDS_MeshNode* > nOnFace( 4 );
const SMDS_MeshNode* nInSolid;
- //vector< const SMDS_MeshElement* > intersectedFaces;
while ( nodeIt->more() )
{
const SMDS_MeshNode* n = nodeIt->next();
n = *volNode;
if ( n->GetPosition()->GetDim() == 3 )
nInSolid = n;
- else
+ else if ( subIDs.count( n->getshapeId() ))
nOnFace.push_back( n );
+ else
+ nInSolid = n;
}
if ( !nInSolid || nOnFace.size() != nbN - 1 )
continue;
// 3. Compute displacement of medium nodes
// ---------------------------------------
+ SMESH_MesherHelper faceHlp(*myMesh);
+
// two loops on QFaces: the first is to treat boundary links, the second is for internal ones.
TopLoc_Location loc;
bool checkUV;
}
else if ( error == ERR_TRI ) { // chain contains continues triangles
TSplitTriaResult res = splitTrianglesIntoChains( rawChain, chains, pos );
- if ( res != _OK ) { // not quadrangles split into triangles
+ if ( res != _OK ) { // not 'quadrangles split into triangles' in chain
fixTriaNearBoundary( rawChain, *this );
break;
}
// mesure chain length and compute link position along the chain
double chainLen = 0;
vector< double > linkPos;
+ TChain savedChain; // backup
MSGBEG( "Link medium nodes: ");
TChain::iterator link0 = chain.begin(), link1 = chain.begin(), link2;
for ( ++link1; link1 != chain.end(); ++link1, ++link0 ) {
MSGBEG( (*link0)->_mediumNode->GetID() << "-" <<(*link1)->_mediumNode->GetID()<<" ");
double len = ((*link0)->MiddlePnt() - (*link1)->MiddlePnt()).Modulus();
while ( len < numeric_limits<double>::min() ) { // remove degenerated link
+ if ( savedChain.empty() ) savedChain = chain;
link1 = chain.erase( link1 );
if ( link1 == chain.end() )
break;
linkPos.push_back( chainLen );
}
MSG("");
- if ( linkPos.size() < 2 )
- continue;
-
+ if ( linkPos.size() <= 2 && savedChain.size() > 2 ) {
+ //continue;
+ linkPos.clear();
+ chainLen = 0;
+ chain = savedChain;
+ for ( link1 = chain.begin(); link1 != chain.end(); ++link1 ) {
+ chainLen += 1;
+ linkPos.push_back( chainLen );
+ }
+ }
gp_Vec move0 = chain.front()->_nodeMove;
gp_Vec move1 = chain.back ()->_nodeMove;
TopoDS_Face face;
if ( !isInside )
{
- // compute node displacement of end links of chain in parametric space of face
+ // compute node displacement of end links of chain in parametric space of FACE
TChainLink& linkOnFace = *(++chain.begin());
const SMDS_MeshNode* nodeOnFace = linkOnFace->_mediumNode;
TopoDS_Shape f = GetSubShapeByNode( nodeOnFace, GetMeshDS() );
if ( !f.IsNull() && f.ShapeType() == TopAbs_FACE )
{
face = TopoDS::Face( f );
+ faceHlp.SetSubShape( face );
Handle(Geom_Surface) surf = BRep_Tool::Surface(face,loc);
- bool isStraight[2];
+ //bool isStraight[2]; // commented for issue 0023118
for ( int is1 = 0; is1 < 2; ++is1 ) // move0 or move1
{
TChainLink& link = is1 ? chain.back() : chain.front();
- gp_XY uvm = GetNodeUV( face, link->_mediumNode, nodeOnFace, &checkUV);
- gp_XY uv1 = GetNodeUV( face, link->node1(), nodeOnFace, &checkUV);
- gp_XY uv2 = GetNodeUV( face, link->node2(), nodeOnFace, &checkUV);
- gp_XY uv12 = GetMiddleUV( surf, uv1, uv2);
+ gp_XY uvm = faceHlp.GetNodeUV( face, link->_mediumNode, nodeOnFace, &checkUV );
+ gp_XY uv1 = faceHlp.GetNodeUV( face, link->node1(), nodeOnFace, &checkUV );
+ gp_XY uv2 = faceHlp.GetNodeUV( face, link->node2(), nodeOnFace, &checkUV );
+ gp_XY uv12 = faceHlp.GetMiddleUV( surf, uv1, uv2 );
// uvMove = uvm - uv12
- gp_XY uvMove = applyIn2D(surf, uvm, uv12, gp_XY_Subtracted, /*inPeriod=*/false);
+ gp_XY uvMove = ApplyIn2D(surf, uvm, uv12, gp_XY_Subtracted, /*inPeriod=*/false);
( is1 ? move1 : move0 ).SetCoord( uvMove.X(), uvMove.Y(), 0 );
if ( !is1 ) // correct nodeOnFace for move1 (issue 0020919)
nodeOnFace = (*(++chain.rbegin()))->_mediumNode;
- isStraight[is1] = isStraightLink( (uv2-uv1).SquareModulus(),
- 10 * uvMove.SquareModulus());
- }
- if ( isStraight[0] && isStraight[1] ) {
- MSG("2D straight - ignore");
- continue; // straight - no need to move nodes of internal links
+ // isStraight[is1] = isStraightLink( (uv2-uv1).SquareModulus(),
+ // 10 * uvMove.SquareModulus());
}
+ // if ( isStraight[0] && isStraight[1] ) {
+ // MSG("2D straight - ignore");
+ // continue; // straight - no need to move nodes of internal links
+ // }
// check if a chain is already fixed
- gp_XY uvm = GetNodeUV( face, linkOnFace->_mediumNode, 0, &checkUV);
- gp_XY uv1 = GetNodeUV( face, linkOnFace->node1(), nodeOnFace, &checkUV);
- gp_XY uv2 = GetNodeUV( face, linkOnFace->node2(), nodeOnFace, &checkUV);
- gp_XY uv12 = GetMiddleUV( surf, uv1, uv2);
+ gp_XY uvm = faceHlp.GetNodeUV( face, linkOnFace->_mediumNode, 0, &checkUV );
+ gp_XY uv1 = faceHlp.GetNodeUV( face, linkOnFace->node1(), nodeOnFace, &checkUV );
+ gp_XY uv2 = faceHlp.GetNodeUV( face, linkOnFace->node2(), nodeOnFace, &checkUV );
+ gp_XY uv12 = faceHlp.GetMiddleUV( surf, uv1, uv2 );
if (( uvm - uv12 ).SquareModulus() > 1e-10 )
{
MSG("Already fixed - ignore");
// transform to global
gp_Vec x01( (*link0)->MiddlePnt(), (*link1)->MiddlePnt() );
gp_Vec x12( (*link1)->MiddlePnt(), (*link2)->MiddlePnt() );
- gp_Vec x = x01.Normalized() + x12.Normalized();
- trsf.SetTransformation( gp_Ax3( gp::Origin(), link1->Normal(), x), gp_Ax3() );
+ try {
+ gp_Vec x = x01.Normalized() + x12.Normalized();
+ trsf.SetTransformation( gp_Ax3( gp::Origin(), link1->Normal(), x), gp_Ax3() );
+ } catch ( Standard_Failure ) {
+ trsf.Invert();
+ }
move.Transform(trsf);
+ (*link1)->Move( move, /*sum=*/false, /*is2dFixed=*/false );
}
else {
// compute 3D displacement by 2D one
Handle(Geom_Surface) s = BRep_Tool::Surface(face,loc);
- gp_XY oldUV = GetNodeUV( face, (*link1)->_mediumNode, 0, &checkUV);
- gp_XY newUV = applyIn2D( s, oldUV, gp_XY( move.X(),move.Y()), gp_XY_Added);
+ gp_XY oldUV = faceHlp.GetNodeUV( face, (*link1)->_mediumNode, 0, &checkUV );
+ gp_XY newUV = ApplyIn2D( s, oldUV, gp_XY( move.X(),move.Y()), gp_XY_Added );
gp_Pnt newPnt = s->Value( newUV.X(), newUV.Y());
move = gp_Vec( XYZ((*link1)->_mediumNode), newPnt.Transformed(loc) );
if ( SMDS_FacePosition* nPos =
if ( (XYZ((*link1)->node1()) - XYZ((*link1)->node2())).SquareModulus() <
move.SquareMagnitude())
{
- gp_XY uv0 = GetNodeUV( face, (*link0)->_mediumNode, 0, &checkUV);
- gp_XY uv2 = GetNodeUV( face, (*link2)->_mediumNode, 0, &checkUV);
+ gp_XY uv0 = faceHlp.GetNodeUV( face, (*link0)->_mediumNode, 0, &checkUV );
+ gp_XY uv2 = faceHlp.GetNodeUV( face, (*link2)->_mediumNode, 0, &checkUV );
MSG( "TOO LONG MOVE \t" <<
"uv0: "<<uv0.X()<<", "<<uv0.Y()<<" \t" <<
"uv2: "<<uv2.X()<<", "<<uv2.Y()<<" \t" <<
"newUV: "<<newUV.X()<<", "<<newUV.Y()<<" \t");
}
#endif
+ (*link1)->Move( move, /*sum=*/false, /*is2dFixed=*/true );
}
- (*link1)->Move( move );
MSG( "Move " << (*link1)->_mediumNode->GetID() << " following "
<< chain.front()->_mediumNode->GetID() <<"-"
<< chain.back ()->_mediumNode->GetID() <<
const bool toFixCentralNodes = ( myMesh->NbBiQuadQuadrangles() +
myMesh->NbBiQuadTriangles() +
myMesh->NbTriQuadraticHexas() );
+ double distXYZ[4];
+ faceHlp.ToFixNodeParameters( true );
for ( pLink = links.begin(); pLink != links.end(); ++pLink ) {
if ( pLink->IsMoved() )
{
gp_Pnt p = pLink->MiddlePnt() + pLink->Move();
+
+ // put on surface nodes on FACE but moved in 3D (23050)
+ if ( !pLink->IsFixedOnSurface() )
+ {
+ faceHlp.SetSubShape( pLink->_mediumNode->getshapeId() );
+ if ( faceHlp.GetSubShape().ShapeType() == TopAbs_FACE )
+ {
+ const_cast<SMDS_MeshNode*>( pLink->_mediumNode )->setXYZ( p.X(), p.Y(), p.Z());
+ p.Coord( distXYZ[1], distXYZ[2], distXYZ[3] );
+ gp_XY uv( Precision::Infinite(), 0 );
+ if ( faceHlp.CheckNodeUV( TopoDS::Face( faceHlp.GetSubShape() ), pLink->_mediumNode,
+ uv, /*tol=*/pLink->Move().Modulus(), /*force=*/true, distXYZ ))
+ p.SetCoord( distXYZ[1], distXYZ[2], distXYZ[3] );
+ }
+ }
GetMeshDS()->MoveNode( pLink->_mediumNode, p.X(), p.Y(), p.Z());
// collect bi-quadratic elements
if ( i > 3 && nodes[i]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE )
CheckNodeUV( F, nodes[i], uv[ i ], 2*tol, /*force=*/true );
}
+ AdjustByPeriod( F, uv, 8 ); // put uv[] within a period (IPAL52698)
// move the central node
gp_XY uvCent = calcTFI (0.5, 0.5, uv[0],uv[1],uv[2],uv[3],uv[4],uv[5],uv[6],uv[7] );
gp_Pnt p = surf->Value( uvCent.X(), uvCent.Y() ).Transformed( loc );
// nodes
nodes.assign( tria->begin_nodes(), tria->end_nodes() );
// UV
+ bool uvOK = true, badTria = false;
for ( int i = 0; i < 6; ++i )
{
- uv[ i ] = GetNodeUV( F, nodes[i], nodes[(i+1)%3], &checkUV );
+ uv[ i ] = GetNodeUV( F, nodes[i], nodes[(i+1)%3], &uvOK );
// as this method is used after mesh generation, UV of nodes is not
// updated according to bending links, so we update
if ( nodes[i]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE )
CheckNodeUV( F, nodes[i], uv[ i ], 2*tol, /*force=*/true );
}
+
// move the central node
- gp_XY uvCent = GetCenterUV( uv[0], uv[1], uv[2], uv[3], uv[4], uv[5] );
- gp_Pnt p = surf->Value( uvCent.X(), uvCent.Y() ).Transformed( loc );
+ gp_Pnt p;
+ if ( !uvOK || badTria )
+ {
+ p = ( SMESH_TNodeXYZ( nodes[3] ) +
+ SMESH_TNodeXYZ( nodes[4] ) +
+ SMESH_TNodeXYZ( nodes[5] )) / 3;
+ }
+ else
+ {
+ AdjustByPeriod( F, uv, 6 ); // put uv[] within a period (IPAL52698)
+ gp_XY uvCent = GetCenterUV( uv[0], uv[1], uv[2], uv[3], uv[4], uv[5], &badTria );
+ p = surf->Value( uvCent.X(), uvCent.Y() ).Transformed( loc );
+ }
GetMeshDS()->MoveNode( tria->GetNode(6), p.X(), p.Y(), p.Z() );
}
}
