#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"
}
}
- if ( nbOldLinks == myTLinkNodeMap.size() )
+ // if ( nbOldLinks == myTLinkNodeMap.size() ) -- 0023068
+ if ( myTLinkNodeMap.empty() )
myCreateQuadratic = false;
- if(!myCreateQuadratic) {
+ if ( !myCreateQuadratic )
myTLinkNodeMap.clear();
- }
+
SetSubShape( aSh );
return myCreateQuadratic;
}
//=======================================================================
-//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 );
}
//=======================================================================
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 == 4 )
+ shapeType = TopAbs_FACE;
+ faceID = myShapeID;
+ }
+ else
+ {
+ 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 )
+ {
+ shapeType = TopAbs_FACE;
+ faceID = myShapeID;
+ }
+ else
{
- if ( itMapWithIdFace->second == 3 )
+ 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;
+ }
}
}
}
{
F = TopoDS::Face( meshDS->IndexToShape( faceID ));
bool checkOK = true, badTria = false;
- gp_XY uv1 = GetNodeUV( F, n1, n23, &checkOK );
- gp_XY uv2 = GetNodeUV( F, n2, n31, &checkOK );
- gp_XY uv3 = GetNodeUV( F, n3, n12, &checkOK );
- gp_XY uv12 = GetNodeUV( F, n12, n3, &checkOK );
- gp_XY uv23 = GetNodeUV( F, n23, n1, &checkOK );
- gp_XY uv31 = GetNodeUV( F, n31, n2, &checkOK );
- uvAvg = GetCenterUV( uv1,uv2,uv3, uv12,uv23,uv31, &badTria );
+ 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;
}
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, TopAbs_FACE );
- newNodes.push_back( n1 );
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 );
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)
+ 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 );
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 )
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 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,
}
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; }
// 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;
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 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 = faceHlp.GetNodeUV( face, linkOnFace->_mediumNode, 0, &checkUV );
// 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 );
}
// compute 3D displacement by 2D one
Handle(Geom_Surface) s = BRep_Tool::Surface(face,loc);
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_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 =
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 );
- faceHlp.CheckNodeUV( TopoDS::Face( faceHlp.GetSubShape() ), pLink->_mediumNode,
- uv, /*tol=*/pLink->Move().Modulus(), /*force=*/true, distXYZ );
- p.SetCoord( distXYZ[1], distXYZ[2], distXYZ[3] );
+ 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());
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;
+ bool uvOK = true, badTria = false;
for ( int i = 0; i < 6; ++i )
{
uv[ i ] = GetNodeUV( F, nodes[i], nodes[(i+1)%3], &uvOK );
if ( nodes[i]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE )
CheckNodeUV( F, nodes[i], uv[ i ], 2*tol, /*force=*/true );
}
+
// move the central node
gp_Pnt p;
if ( !uvOK || badTria )
}
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 );
}
