// get positions of the given nodes on shapes
if ( pos.second == TopAbs_FACE )
{
- F = TopoDS::Face(meshDS->IndexToShape( faceID = pos.first ));
+ F = TopoDS::Face( meshDS->IndexToShape( faceID = pos.first ));
uv[0] = GetNodeUV(F,n1,n2, force3d ? 0 : &uvOK[0]);
- if (( !force3d ) &&
- ( HasDegeneratedEdges() || GetSurface( F )->HasSingularities( 1e-7 )))
- {
- // IPAL52850 (degen VERTEX not at singularity)
- // project middle point to a surface
- SMESH_TNodeXYZ p1( n1 ), p2( n2 );
- gp_Pnt pMid = 0.5 * ( p1 + p2 );
- Handle(ShapeAnalysis_Surface) projector = GetSurface( F );
- gp_Pnt2d uvMid;
- if ( uvOK[0] )
- uvMid = projector->NextValueOfUV( uv[0], pMid, BRep_Tool::Tolerance( F ));
- else
- uvMid = projector->ValueOfUV( pMid, getFaceMaxTol( F ));
- if ( projector->Gap() * projector->Gap() < ( p1 - p2 ).SquareModulus() / 4 )
- {
- gp_Pnt pProj = projector->Value( uvMid );
- n12 = meshDS->AddNode( pProj.X(), pProj.Y(), pProj.Z() );
- meshDS->SetNodeOnFace( n12, faceID, uvMid.X(), uvMid.Y() );
- myTLinkNodeMap.insert( make_pair ( link, n12 ));
- return n12;
- }
- }
uv[1] = GetNodeUV(F,n2,n1, force3d ? 0 : &uvOK[1]);
}
else if ( pos.second == TopAbs_EDGE )
// nodes, else - medium between corresponding 3d points
if( ! F.IsNull() )
{
- //if ( uvOK[0] && uvOK[1] )
+ if ( IsDegenShape( n1->getshapeId() )) {
+ if ( myParIndex & U_periodic ) uv[0].SetCoord( 1, uv[1].Coord( 1 ));
+ else uv[0].SetCoord( 2, uv[1].Coord( 2 ));
+ }
+ else if ( IsDegenShape( n2->getshapeId() )) {
+ 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] );
+ gp_Pnt P = S->Value( UV.X(), UV.Y() ).Transformed(loc);
+
+ SMESH_TNodeXYZ p1( n1 ), p2( n2 );
+ gp_Pnt pMid = 0.5 * ( p1 + p2 );
+ double distMid = pMid.SquareDistance( P );
+ double dist12 = ( p1 - p2 ).SquareModulus();
+ Handle(ShapeAnalysis_Surface) surfInfo = GetSurface( F );
+ if ( distMid > dist12 ||
+ HasDegeneratedEdges() ||
+ surfInfo->HasSingularities( 1e-7 ) )
{
- if ( IsDegenShape( n1->getshapeId() )) {
- if ( myParIndex & U_periodic ) uv[0].SetCoord( 1, uv[1].Coord( 1 ));
- else uv[0].SetCoord( 2, uv[1].Coord( 2 ));
- }
- else if ( IsDegenShape( n2->getshapeId() )) {
- 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] );
- gp_Pnt P = S->Value( UV.X(), UV.Y() ).Transformed(loc);
- n12 = meshDS->AddNode(P.X(), P.Y(), P.Z());
- // if ( mySetElemOnShape ) node is not elem!
- meshDS->SetNodeOnFace(n12, faceID, UV.X(), UV.Y());
- myTLinkNodeMap.insert(make_pair(link,n12));
- return n12;
+ // IPAL52850 (degen VERTEX not at singularity)
+ // project middle point to a surface
+ gp_Pnt2d uvMid;
+ if ( uvOK[0] )
+ uvMid = surfInfo->NextValueOfUV( uv[0], pMid, BRep_Tool::Tolerance( F ));
+ else
+ uvMid = surfInfo->ValueOfUV( pMid, getFaceMaxTol( F ));
+ if ( surfInfo->Gap() * surfInfo->Gap() < distMid )
+ P = surfInfo->Value( uvMid );
}
+ n12 = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ // if ( mySetElemOnShape ) node is not elem!
+ meshDS->SetNodeOnFace(n12, faceID, UV.X(), UV.Y());
+ myTLinkNodeMap.insert(make_pair(link,n12));
+ return n12;
}
else if ( !E.IsNull() )
{
meshDS->RemoveFreeNode( nodesToRemove[i], sm, /*fromGroups=*/false);
}
}
+ return;
}
//================================================================================
set<const SMDS_MeshNode*> & nodesToMove)
{
// cout << endl << "Merge " << PrmI->GetID() << " " << PrmJ->GetID() << " "
- // << PrmI->GetNode(4) << PrmJ->GetNode(4) << endl;
+ // << PrmI->GetNode(4)->GetID() << " " << PrmJ->GetNode(4)->GetID() << endl;
const SMDS_MeshNode* Nrem = PrmJ->GetNode(4); // node to remove
//int nbJ = Nrem->NbInverseElements( SMDSAbs_Volume );
SMESH_TNodeXYZ Pj( Nrem );
typedef SMDS_StdIterator< const SMDS_MeshElement*, SMDS_ElemIteratorPtr > TStdElemIterator;
TStdElemIterator itEnd;
+ typedef std::map< const SMDS_MeshNode*, const SMDS_MeshNode* > TNNMap;
+ TNNMap mediumReplaceMap;
+
// find and remove coincided faces of merged pyramids
vector< const SMDS_MeshElement* > inverseElems
// copy inverse elements to avoid iteration on changing container
}
if ( FJEqual )
{
+ if ( FJEqual->NbNodes() == 6 ) // find medium nodes to replace
+ {
+ mediumReplaceMap.insert( std::make_pair( FJEqual->GetNode(3), FI->GetNode(5) ));
+ mediumReplaceMap.insert( std::make_pair( FJEqual->GetNode(5), FI->GetNode(3) ));
+ }
removeTmpElement( FI );
removeTmpElement( FJEqual );
myRemovedTrias.insert( FI );
const SMDS_MeshElement* elem = inverseElems[i];
nodes.assign( elem->begin_nodes(), elem->end_nodes() );
nodes[ elem->GetType() == SMDSAbs_Volume ? PYRAM_APEX : TRIA_APEX ] = CommonNode;
+ if ( !mediumReplaceMap.empty() )
+ for ( size_t iN = elem->NbCornerNodes(); iN < nodes.size(); ++iN )
+ {
+ TNNMap::iterator n2n = mediumReplaceMap.find( nodes[iN] );
+ if ( n2n != mediumReplaceMap.end() )
+ nodes[iN] = n2n->second;
+ }
GetMeshDS()->ChangeElementNodes( elem, &nodes[0], nodes.size());
}
ASSERT( Nrem->NbInverseElements() == 0 );
GetMeshDS()->RemoveFreeNode( Nrem,
GetMeshDS()->MeshElements( Nrem->getshapeId()),
/*fromGroups=*/false);
+ if ( !mediumReplaceMap.empty() )
+ for ( TNNMap::iterator n2n = mediumReplaceMap.begin(); n2n != mediumReplaceMap.end(); ++n2n )
+ {
+ const SMDS_MeshNode* remNode = n2n->first;
+ if ( !remNode->IsNull() && remNode->NbInverseElements() == 0 )
+ GetMeshDS()->RemoveFreeNode( remNode, 0, /*fromGroups=*/false);
+ }
+ return;
}
//================================================================================
{
TIDSortedElemSet adjacentPyrams;
bool mergedPyrams = false;
- for ( int k=0; k<4; k++ ) // loop on 4 base nodes of PrmI
+ for ( int k = 0; k < 4; k++ ) // loop on 4 base nodes of PrmI
{
const SMDS_MeshNode* n = PrmI->GetNode(k);
SMDS_ElemIteratorPtr vIt = n->GetInverseElementIterator( SMDSAbs_Volume );
for (prm = adjacentPyrams.begin(); prm != adjacentPyrams.end(); ++prm)
MergeAdjacent( *prm, nodesToMove, true );
}
+ return;
}
//================================================================================
// and a segment [PC,P]
//=======================================================================
-static bool HasIntersection3(const gp_Pnt& P, const gp_Pnt& PC, gp_Pnt& Pint,
+static bool HasIntersection3(const gp_Pnt& P, const gp_Pnt& PC, gp_Pnt& Pint,
const gp_Pnt& P1, const gp_Pnt& P2, const gp_Pnt& P3)
{
const double EPSILON = 1e-6;
Pint = orig + dir * t;
- return ( t > 0. && t < segLen );
+ bool hasInt = ( t > 0. && t < segLen );
+
+ if ( hasInt && det < EPSILON ) // t is inaccurate, additionally check
+ {
+ gp_XYZ triNorm = edge1 ^ edge2;
+ gp_XYZ int0vec = Pint.XYZ() - vert0;
+ gp_XYZ in = triNorm ^ edge1; // dir inside triangle from edge1
+ double dot = int0vec * in;
+ if ( dot < 0 && dot / triNorm.Modulus() < -EPSILON )
+ return false;
+ in = edge2 ^ triNorm;
+ dot = int0vec * in;
+ if ( dot < 0 && dot / triNorm.Modulus() < -EPSILON )
+ return false;
+ gp_XYZ int1vec = Pint.XYZ() - vert1;
+ in = triNorm ^ ( vert2 - vert1 );
+ dot = int1vec * in;
+ if ( dot < 0 && dot / triNorm.Modulus() < -EPSILON )
+ return false;
+ }
+ return hasInt;
}
//=======================================================================
SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
SMESH_MesherHelper helper(aMesh);
helper.IsQuadraticSubMesh(aShape);
- helper.SetElementsOnShape( true );
if ( myElemSearcher ) delete myElemSearcher;
vector< SMDS_ElemIteratorPtr > itVec;
// degenerate face
// add triangles to result map
SMDS_MeshFace* NewFace;
+ helper.SetElementsOnShape( false );
if(!isRev)
- NewFace = meshDS->AddFace( FNodes[0], FNodes[1], FNodes[2] );
+ NewFace = helper.AddFace( FNodes[0], FNodes[1], FNodes[2] );
else
- NewFace = meshDS->AddFace( FNodes[0], FNodes[2], FNodes[1] );
+ NewFace = helper.AddFace( FNodes[0], FNodes[2], FNodes[1] );
storeTmpElement( NewFace );
trias.push_back ( NewFace );
quads.push_back( face );
if ( !LimitHeight( PCbest, PC, PN, FNodes, aMesh, face, /*UseApexRay=*/true, aShape ))
return false;
}
- // create node for PCbest
+ // create node at PCbest
+ helper.SetElementsOnShape( true );
SMDS_MeshNode* NewNode = helper.AddNode( PCbest.X(), PCbest.Y(), PCbest.Z() );
+ // create a pyramid
+ SMDS_MeshVolume* aPyram;
+ if ( isRev )
+ aPyram = helper.AddVolume( FNodes[0], FNodes[3], FNodes[2], FNodes[1], NewNode );
+ else
+ aPyram = helper.AddVolume( FNodes[0], FNodes[1], FNodes[2], FNodes[3], NewNode );
+ myPyramids.push_back(aPyram);
+
// add triangles to result map
- for(i=0; i<4; i++)
+ helper.SetElementsOnShape( false );
+ for ( i = 0; i < 4; i++ )
{
- trias.push_back ( meshDS->AddFace( NewNode, FNodes[i], FNodes[i+1] ));
+ trias.push_back ( helper.AddFace( NewNode, FNodes[i], FNodes[i+1] ));
storeTmpElement( trias.back() );
}
- // create a pyramid
- if ( isRev ) swap( FNodes[1], FNodes[3]);
- SMDS_MeshVolume* aPyram =
- helper.AddVolume( FNodes[0], FNodes[1], FNodes[2], FNodes[3], NewNode );
- myPyramids.push_back(aPyram);
quads.push_back( face );
hasNewTrias = true;
vector<const SMDS_MeshElement*> myPyramids;
SMESH_MesherHelper helper(aMesh);
helper.IsQuadraticSubMesh(aMesh.GetShapeToMesh());
- helper.SetElementsOnShape( true );
SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
SMESH_ProxyMesh::SubMesh* prxSubMesh = getProxySubMesh();
IsRev = true;
}
}
+ helper.SetElementsOnShape( false );
if(!IsRev)
- NewFace = meshDS->AddFace( FNodes[0], FNodes[1], FNodes[2] );
+ NewFace = helper.AddFace( FNodes[0], FNodes[1], FNodes[2] );
else
- NewFace = meshDS->AddFace( FNodes[0], FNodes[2], FNodes[1] );
+ NewFace = helper.AddFace( FNodes[0], FNodes[2], FNodes[1] );
storeTmpElement( NewFace );
prxSubMesh->AddElement( NewFace );
continue;
return false;
// create node for Papex
+ helper.SetElementsOnShape( true );
SMDS_MeshNode* NewNode = helper.AddNode( Papex.X(), Papex.Y(), Papex.Z() );
+ // create a pyramid
+ SMDS_MeshVolume* aPyram;
+ if(isRev)
+ aPyram = helper.AddVolume( FNodes[0], FNodes[1], FNodes[2], FNodes[3], NewNode );
+ else
+ aPyram = helper.AddVolume( FNodes[0], FNodes[3], FNodes[2], FNodes[1], NewNode );
+ myPyramids.push_back(aPyram);
+
// add triangles to result map
+ helper.SetElementsOnShape( false );
for ( i = 0; i < 4; i++) {
SMDS_MeshFace* NewFace;
if(isRev)
- NewFace = meshDS->AddFace( NewNode, FNodes[i], FNodes[i+1] );
+ NewFace = helper.AddFace( NewNode, FNodes[i], FNodes[i+1] );
else
- NewFace = meshDS->AddFace( NewNode, FNodes[i+1], FNodes[i] );
+ NewFace = helper.AddFace( NewNode, FNodes[i+1], FNodes[i] );
storeTmpElement( NewFace );
prxSubMesh->AddElement( NewFace );
}
- // create a pyramid
- SMDS_MeshVolume* aPyram;
- if(isRev)
- aPyram = helper.AddVolume( FNodes[0], FNodes[1], FNodes[2], FNodes[3], NewNode );
- else
- aPyram = helper.AddVolume( FNodes[0], FNodes[3], FNodes[2], FNodes[1], NewNode );
- myPyramids.push_back(aPyram);
}
} // end loop on all faces
