-// Copyright (C) 2007-2015 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2016 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_EdgePosition.hxx"
#include "SMDS_FacePosition.hxx"
#include "SMESHDS_Hypothesis.hxx"
+#include "SMESHDS_Mesh.hxx"
#include "SMESHDS_SubMesh.hxx"
#include "SMESH_Block.hxx"
#include "SMESH_Comment.hxx"
TAssocTool::TNodeNodeMap& src2tgtNodes,
bool& is1DComputed)
{
- SMESHDS_Mesh* tgtMeshDS = tgtMesh->GetMeshDS();
- SMESHDS_Mesh* srcMeshDS = srcMesh->GetMeshDS();
-
src2tgtNodes.clear();
// get ordered src EDGEs
TError err;
srcWires = StdMeshers_FaceSide::GetFaceWires( srcFace, *srcMesh,/*skipMediumNodes=*/0, err);
- if ( err && !err->IsOK() || srcWires.empty() )
+ if (( err && !err->IsOK() ) ||
+ ( srcWires.empty() ))
return err;
SMESH_MesherHelper srcHelper( *srcMesh );
const double minSegLen = srcWires[iW]->Length() / totNbSeg;
for ( int iE = 0; iE < srcWires[iW]->NbEdges(); ++iE )
{
- int nbSeg = Max( 1, int( srcWires[iW]->EdgeLength( iE ) / minSegLen ));
+ size_t nbSeg = Max( 1, int( srcWires[iW]->EdgeLength( iE ) / minSegLen ));
double srcU = srcWires[iW]->FirstParameter( iE );
double tgtU = tgtWires[iW]->FirstParameter( iE );
double srcDu = ( srcWires[iW]->LastParameter( iE )- srcU ) / nbSeg;
// find trsf
const int totNbSeg = 50;
vector< gp_XY > srcPnts, tgtPnts;
- srcPnts.resize( totNbSeg );
- tgtPnts.resize( totNbSeg );
+ srcPnts.reserve( totNbSeg );
+ tgtPnts.reserve( totNbSeg );
for ( size_t iW = 0; iW < srcWires.size(); ++iW )
{
const double minSegLen = srcWires[iW]->Length() / totNbSeg;
for ( int iE = 0; iE < srcWires[iW]->NbEdges(); ++iE )
{
- int nbSeg = Max( 1, int( srcWires[iW]->EdgeLength( iE ) / minSegLen ));
+ size_t nbSeg = Max( 1, int( srcWires[iW]->EdgeLength( iE ) / minSegLen ));
double srcU = srcWires[iW]->FirstParameter( iE );
double tgtU = tgtWires[iW]->FirstParameter( iE );
double srcDu = ( srcWires[iW]->LastParameter( iE )- srcU ) / nbSeg;
tgtMeshDS->SetNodeOnVertex( n, TopoDS::Vertex( tgtV ));
break;
}
+ default:;
}
srcN_tgtN->second = n;
}
TAssocTool::TNodeNodeMap& src2tgtNodes,
const bool is1DComputed)
{
- SMESH_Mesh * tgtMesh = tgtWires[0]->GetMesh();
- SMESH_Mesh * srcMesh = srcWires[0]->GetMesh();
- SMESHDS_Mesh * tgtMeshDS = tgtMesh->GetMeshDS();
- SMESHDS_Mesh * srcMeshDS = srcMesh->GetMeshDS();
-
- if ( srcWires[0]->NbEdges() != 4 )
- return false;
- if ( !is1DComputed )
- return false;
- for ( int iE = 0; iE < 4; ++iE )
- {
- SMESHDS_SubMesh* sm = srcMeshDS->MeshElements( srcWires[0]->Edge( iE ));
- if ( !sm ) return false;
- if ( sm->NbNodes() + sm->NbElements() == 0 ) return false;
- }
- if ( BRepAdaptor_Surface( tgtFace ).GetType() != GeomAbs_Plane )
- return false;
- // if ( BRepAdaptor_Surface( tgtFace ).GetType() == GeomAbs_Plane &&
- // BRepAdaptor_Surface( srcFace ).GetType() == GeomAbs_Plane )
- // return false; // too easy
-
- // load EDGEs to SMESH_Block
-
- SMESH_Block block;
- TopTools_IndexedMapOfOrientedShape blockSubShapes;
- {
- const TopoDS_Solid& box = srcMesh->PseudoShape();
- TopoDS_Shell shell = TopoDS::Shell( TopExp_Explorer( box, TopAbs_SHELL ).Current() );
- TopoDS_Vertex v;
- block.LoadBlockShapes( shell, v, v, blockSubShapes ); // fill all since operator[] is missing
- }
- const SMESH_Block::TShapeID srcFaceBID = SMESH_Block::ID_Fxy0;
- const SMESH_Block::TShapeID tgtFaceBID = SMESH_Block::ID_Fxy1;
- vector< int > edgeBID;
- block.GetFaceEdgesIDs( srcFaceBID, edgeBID ); // u0, u1, 0v, 1v
- blockSubShapes.Substitute( edgeBID[0], srcWires[0]->Edge(0) );
- blockSubShapes.Substitute( edgeBID[1], srcWires[0]->Edge(2) );
- blockSubShapes.Substitute( edgeBID[2], srcWires[0]->Edge(3) );
- blockSubShapes.Substitute( edgeBID[3], srcWires[0]->Edge(1) );
- block.GetFaceEdgesIDs( tgtFaceBID, edgeBID ); // u0, u1, 0v, 1v
- blockSubShapes.Substitute( edgeBID[0], tgtWires[0]->Edge(0) );
- blockSubShapes.Substitute( edgeBID[1], tgtWires[0]->Edge(2) );
- blockSubShapes.Substitute( edgeBID[2], tgtWires[0]->Edge(3) );
- blockSubShapes.Substitute( edgeBID[3], tgtWires[0]->Edge(1) );
- block.LoadFace( srcFace, srcFaceBID, blockSubShapes );
- block.LoadFace( tgtFace, tgtFaceBID, blockSubShapes );
-
- // remember connectivity of new faces in terms of ( node-or-XY )
-
- typedef std::pair< const SMDS_MeshNode*, gp_XYZ > TNodeOrXY; // node-or-XY
- typedef std::vector< TNodeOrXY* > TFaceConn; // face connectivity
- std::vector< TFaceConn > newFacesVec; // connectivity of all faces
- std::map< const SMDS_MeshNode*, TNodeOrXY > srcNode2tgtNXY; // src node -> node-or-XY
-
- TAssocTool::TNodeNodeMap::iterator srcN_tgtN;
- std::map< const SMDS_MeshNode*, TNodeOrXY >::iterator srcN_tgtNXY;
- std::pair< std::map< const SMDS_MeshNode*, TNodeOrXY >::iterator, bool > n2n_isNew;
- TNodeOrXY nullNXY( (SMDS_MeshNode*)NULL, gp_XYZ(0,0,0) );
-
- SMESHDS_SubMesh* srcSubDS = srcMeshDS->MeshElements( srcFace );
- newFacesVec.resize( srcSubDS->NbElements() );
- int iFaceSrc = 0;
+ // SMESH_Mesh * tgtMesh = tgtWires[0]->GetMesh();
+ // SMESH_Mesh * srcMesh = srcWires[0]->GetMesh();
+ // //SMESHDS_Mesh * tgtMeshDS = tgtMesh->GetMeshDS();
+ // SMESHDS_Mesh * srcMeshDS = srcMesh->GetMeshDS();
+
+ // if ( srcWires[0]->NbEdges() != 4 )
+ // return false;
+ // if ( !is1DComputed )
+ // return false;
+ // for ( int iE = 0; iE < 4; ++iE )
+ // {
+ // SMESHDS_SubMesh* sm = srcMeshDS->MeshElements( srcWires[0]->Edge( iE ));
+ // if ( !sm ) return false;
+ // if ( sm->NbNodes() + sm->NbElements() == 0 ) return false;
+ // }
+ // if ( BRepAdaptor_Surface( tgtFace ).GetType() != GeomAbs_Plane )
+ // return false;
+ // // if ( BRepAdaptor_Surface( tgtFace ).GetType() == GeomAbs_Plane &&
+ // // BRepAdaptor_Surface( srcFace ).GetType() == GeomAbs_Plane )
+ // // return false; // too easy
- SMDS_ElemIteratorPtr elemIt = srcSubDS->GetElements();
- while ( elemIt->more() ) // loop on all mesh faces on srcFace
- {
- const SMDS_MeshElement* elem = elemIt->next();
- TFaceConn& tgtNodes = newFacesVec[ iFaceSrc++ ];
+ // // load EDGEs to SMESH_Block
- const int nbN = elem->NbCornerNodes();
- tgtNodes.resize( nbN );
- for ( int i = 0; i < nbN; ++i ) // loop on nodes of the source element
- {
- const SMDS_MeshNode* srcNode = elem->GetNode(i);
- n2n_isNew = srcNode2tgtNXY.insert( make_pair( srcNode, nullNXY ));
- TNodeOrXY & tgtNodeOrXY = n2n_isNew.first->second;
- if ( n2n_isNew.second ) // new src node encounters
- {
- srcN_tgtN = src2tgtNodes.find( srcNode );
- if ( srcN_tgtN != src2tgtNodes.end() )
- {
- tgtNodeOrXY.first = srcN_tgtN->second; // tgt node exists
- }
- else
- {
- // find XY of src node withing the quadrilateral srcFace
- if ( !block.ComputeParameters( SMESH_TNodeXYZ( srcNode ),
- tgtNodeOrXY.second, srcFaceBID ))
- return false;
- }
- }
- tgtNodes[ i ] = & tgtNodeOrXY;
- }
- }
+ // SMESH_Block block;
+ // TopTools_IndexedMapOfOrientedShape blockSubShapes;
+ // {
+ // const TopoDS_Solid& box = srcMesh->PseudoShape();
+ // TopoDS_Shell shell = TopoDS::Shell( TopExp_Explorer( box, TopAbs_SHELL ).Current() );
+ // TopoDS_Vertex v;
+ // block.LoadBlockShapes( shell, v, v, blockSubShapes ); // fill all since operator[] is missing
+ // }
+ // const SMESH_Block::TShapeID srcFaceBID = SMESH_Block::ID_Fxy0;
+ // const SMESH_Block::TShapeID tgtFaceBID = SMESH_Block::ID_Fxy1;
+ // vector< int > edgeBID;
+ // block.GetFaceEdgesIDs( srcFaceBID, edgeBID ); // u0, u1, 0v, 1v
+ // blockSubShapes.Substitute( edgeBID[0], srcWires[0]->Edge(0) );
+ // blockSubShapes.Substitute( edgeBID[1], srcWires[0]->Edge(2) );
+ // blockSubShapes.Substitute( edgeBID[2], srcWires[0]->Edge(3) );
+ // blockSubShapes.Substitute( edgeBID[3], srcWires[0]->Edge(1) );
+ // block.GetFaceEdgesIDs( tgtFaceBID, edgeBID ); // u0, u1, 0v, 1v
+ // blockSubShapes.Substitute( edgeBID[0], tgtWires[0]->Edge(0) );
+ // blockSubShapes.Substitute( edgeBID[1], tgtWires[0]->Edge(2) );
+ // blockSubShapes.Substitute( edgeBID[2], tgtWires[0]->Edge(3) );
+ // blockSubShapes.Substitute( edgeBID[3], tgtWires[0]->Edge(1) );
+ // block.LoadFace( srcFace, srcFaceBID, blockSubShapes );
+ // block.LoadFace( tgtFace, tgtFaceBID, blockSubShapes );
+
+ // // remember connectivity of new faces in terms of ( node-or-XY )
+
+ // typedef std::pair< const SMDS_MeshNode*, gp_XYZ > TNodeOrXY; // node-or-XY
+ // typedef std::vector< TNodeOrXY* > TFaceConn; // face connectivity
+ // std::vector< TFaceConn > newFacesVec; // connectivity of all faces
+ // std::map< const SMDS_MeshNode*, TNodeOrXY > srcNode2tgtNXY; // src node -> node-or-XY
+
+ // TAssocTool::TNodeNodeMap::iterator srcN_tgtN;
+ // std::map< const SMDS_MeshNode*, TNodeOrXY >::iterator srcN_tgtNXY;
+ // std::pair< std::map< const SMDS_MeshNode*, TNodeOrXY >::iterator, bool > n2n_isNew;
+ // TNodeOrXY nullNXY( (SMDS_MeshNode*)NULL, gp_XYZ(0,0,0) );
+
+ // SMESHDS_SubMesh* srcSubDS = srcMeshDS->MeshElements( srcFace );
+ // newFacesVec.resize( srcSubDS->NbElements() );
+ // int iFaceSrc = 0;
+
+ // SMDS_ElemIteratorPtr elemIt = srcSubDS->GetElements();
+ // while ( elemIt->more() ) // loop on all mesh faces on srcFace
+ // {
+ // const SMDS_MeshElement* elem = elemIt->next();
+ // TFaceConn& tgtNodes = newFacesVec[ iFaceSrc++ ];
+
+ // const int nbN = elem->NbCornerNodes();
+ // tgtNodes.resize( nbN );
+ // for ( int i = 0; i < nbN; ++i ) // loop on nodes of the source element
+ // {
+ // const SMDS_MeshNode* srcNode = elem->GetNode(i);
+ // n2n_isNew = srcNode2tgtNXY.insert( make_pair( srcNode, nullNXY ));
+ // TNodeOrXY & tgtNodeOrXY = n2n_isNew.first->second;
+ // if ( n2n_isNew.second ) // new src node encounters
+ // {
+ // srcN_tgtN = src2tgtNodes.find( srcNode );
+ // if ( srcN_tgtN != src2tgtNodes.end() )
+ // {
+ // tgtNodeOrXY.first = srcN_tgtN->second; // tgt node exists
+ // }
+ // else
+ // {
+ // // find XY of src node withing the quadrilateral srcFace
+ // if ( !block.ComputeParameters( SMESH_TNodeXYZ( srcNode ),
+ // tgtNodeOrXY.second, srcFaceBID ))
+ // return false;
+ // }
+ // }
+ // tgtNodes[ i ] = & tgtNodeOrXY;
+ // }
+ // }
- // as all XY are computed, create tgt nodes and faces
+ // // as all XY are computed, create tgt nodes and faces
- SMESH_MesherHelper helper( *tgtMesh );
- helper.SetSubShape( tgtFace );
- if ( is1DComputed )
- helper.IsQuadraticSubMesh( tgtFace );
- else
- helper.SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
- helper.SetElementsOnShape( true );
- Handle(Geom_Surface) tgtSurface = BRep_Tool::Surface( tgtFace );
+ // SMESH_MesherHelper helper( *tgtMesh );
+ // helper.SetSubShape( tgtFace );
+ // if ( is1DComputed )
+ // helper.IsQuadraticSubMesh( tgtFace );
+ // else
+ // helper.SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
+ // helper.SetElementsOnShape( true );
+ // Handle(Geom_Surface) tgtSurface = BRep_Tool::Surface( tgtFace );
- SMESH_MesherHelper srcHelper( *srcMesh );
- srcHelper.SetSubShape( srcFace );
+ // SMESH_MesherHelper srcHelper( *srcMesh );
+ // srcHelper.SetSubShape( srcFace );
- vector< const SMDS_MeshNode* > tgtNodes;
- gp_XY uv;
+ // vector< const SMDS_MeshNode* > tgtNodes;
+ // gp_XY uv;
- for ( size_t iFaceTgt = 0; iFaceTgt < newFacesVec.size(); ++iFaceTgt )
- {
- TFaceConn& tgtConn = newFacesVec[ iFaceTgt ];
- tgtNodes.resize( tgtConn.size() );
- for ( size_t iN = 0; iN < tgtConn.size(); ++iN )
- {
- const SMDS_MeshNode* & tgtN = tgtConn[ iN ]->first;
- if ( !tgtN ) // create a node
- {
- if ( !block.FaceUV( tgtFaceBID, tgtConn[iN]->second, uv ))
- return false;
- gp_Pnt p = tgtSurface->Value( uv.X(), uv.Y() );
- tgtN = helper.AddNode( p.X(), p.Y(), p.Z(), uv.X(), uv.Y() );
- }
- tgtNodes[ tgtNodes.size() - iN - 1] = tgtN; // reversed orientation
- }
- switch ( tgtNodes.size() )
- {
- case 3: helper.AddFace(tgtNodes[0], tgtNodes[1], tgtNodes[2]); break;
- case 4: helper.AddFace(tgtNodes[0], tgtNodes[1], tgtNodes[2], tgtNodes[3]); break;
- default:
- if ( tgtNodes.size() > 4 )
- helper.AddPolygonalFace( tgtNodes );
- }
- }
- return true;
+ // for ( size_t iFaceTgt = 0; iFaceTgt < newFacesVec.size(); ++iFaceTgt )
+ // {
+ // TFaceConn& tgtConn = newFacesVec[ iFaceTgt ];
+ // tgtNodes.resize( tgtConn.size() );
+ // for ( size_t iN = 0; iN < tgtConn.size(); ++iN )
+ // {
+ // const SMDS_MeshNode* & tgtN = tgtConn[ iN ]->first;
+ // if ( !tgtN ) // create a node
+ // {
+ // if ( !block.FaceUV( tgtFaceBID, tgtConn[iN]->second, uv ))
+ // return false;
+ // gp_Pnt p = tgtSurface->Value( uv.X(), uv.Y() );
+ // tgtN = helper.AddNode( p.X(), p.Y(), p.Z(), uv.X(), uv.Y() );
+ // }
+ // tgtNodes[ tgtNodes.size() - iN - 1] = tgtN; // reversed orientation
+ // }
+ // switch ( tgtNodes.size() )
+ // {
+ // case 3: helper.AddFace(tgtNodes[0], tgtNodes[1], tgtNodes[2]); break;
+ // case 4: helper.AddFace(tgtNodes[0], tgtNodes[1], tgtNodes[2], tgtNodes[3]); break;
+ // default:
+ // if ( tgtNodes.size() > 4 )
+ // helper.AddPolygonalFace( tgtNodes );
+ // }
+ // }
+ return false; //true;
} // bool projectQuads(...)
return true;
}
+ //=======================================================================
+ /*
+ * Set initial association of VERTEXes for the case of projection
+ * from a quadrangle FACE to a closed FACE, where opposite src EDGEs
+ * have different nb of segments
+ */
+ //=======================================================================
+
+ void initAssoc4Quad2Closed(const TopoDS_Shape& tgtFace,
+ SMESH_MesherHelper& tgtHelper,
+ const TopoDS_Shape& srcFace,
+ SMESH_Mesh* srcMesh,
+ TAssocTool::TShapeShapeMap & assocMap)
+ {
+ if ( !tgtHelper.HasRealSeam() || srcFace.ShapeType() != TopAbs_FACE )
+ return; // no seam edge
+ list< TopoDS_Edge > tgtEdges, srcEdges;
+ list< int > tgtNbEW, srcNbEW;
+ int tgtNbW = SMESH_Block::GetOrderedEdges( TopoDS::Face( tgtFace ), tgtEdges, tgtNbEW );
+ int srcNbW = SMESH_Block::GetOrderedEdges( TopoDS::Face( srcFace ), srcEdges, srcNbEW );
+ if ( tgtNbW != 1 || srcNbW != 1 ||
+ tgtNbEW.front() != 4 || srcNbEW.front() != 4 )
+ return; // not quads
+
+ int srcNbSeg[4];
+ list< TopoDS_Edge >::iterator edgeS = srcEdges.begin(), edgeT = tgtEdges.begin();
+ for ( int i = 0; edgeS != srcEdges.end(); ++i, ++edgeS )
+ if ( SMESHDS_SubMesh* sm = srcMesh->GetMeshDS()->MeshElements( *edgeS ))
+ srcNbSeg[ i ] = sm->NbNodes();
+ else
+ return; // not meshed
+ if ( srcNbSeg[0] == srcNbSeg[2] && srcNbSeg[1] == srcNbSeg[3] )
+ return; // same nb segments
+ if ( srcNbSeg[0] != srcNbSeg[2] && srcNbSeg[1] != srcNbSeg[3] )
+ return; // all different nb segments
+
+ edgeS = srcEdges.begin();
+ if ( srcNbSeg[0] != srcNbSeg[2] )
+ ++edgeS;
+ TAssocTool::InsertAssociation( tgtHelper.IthVertex( 0,*edgeT ),
+ tgtHelper.IthVertex( 0,*edgeS ), assocMap );
+ TAssocTool::InsertAssociation( tgtHelper.IthVertex( 1,*edgeT ),
+ tgtHelper.IthVertex( 1,*edgeS ), assocMap );
+ }
+
} // namespace
{
_src2tgtNodes.clear();
- MESSAGE("Projection_2D Compute");
if ( !_sourceHypo )
return false;
TopoDS_Face tgtFace = TopoDS::Face( theShape.Oriented(TopAbs_FORWARD));
TopoDS_Shape srcShape = _sourceHypo->GetSourceFace().Oriented(TopAbs_FORWARD);
+ helper.SetSubShape( tgtFace );
+
TAssocTool::TShapeShapeMap shape2ShapeMap;
TAssocTool::InitVertexAssociation( _sourceHypo, shape2ShapeMap );
+ if ( shape2ShapeMap.IsEmpty() )
+ initAssoc4Quad2Closed( tgtFace, helper, srcShape, srcMesh, shape2ShapeMap );
if ( !TAssocTool::FindSubShapeAssociation( tgtFace, tgtMesh, srcShape, srcMesh,
shape2ShapeMap) ||
!shape2ShapeMap.IsBound( tgtFace ))
{
// projection in case if the faces are similar in 2D space
projDone = projectBy2DSimilarity( tgtFace, srcFace, tgtWires, srcWires,
- shape2ShapeMap, _src2tgtNodes, is1DComputed);
+ shape2ShapeMap, _src2tgtNodes, is1DComputed );
}
if ( !projDone )
{
// projection in case of quadrilateral faces
- // projDone = projectQuads( tgtFace, srcFace, tgtWires, srcWires,
- // shape2ShapeMap, _src2tgtNodes, is1DComputed);
+ // NOT IMPLEMENTED, returns false
+ projDone = projectQuads( tgtFace, srcFace, tgtWires, srcWires,
+ shape2ShapeMap, _src2tgtNodes, is1DComputed);
}
- helper.SetSubShape( tgtFace );
-
// it will remove mesh built on edges and vertices in failure case
MeshCleaner cleaner( tgtSubMesh );
}
}
}
- else if ( nbEdgesInWires.front() == 1 )
+ else if ( nbEdgesInWires.front() == 1 ) // a sole edge in a wire
{
- // TODO::Compare orientation of curves in a sole edge
- //RETURN_BAD_RESULT("Not implemented case");
+ TopoDS_Edge srcE1 = srcEdges.front(), tgtE1 = tgtEdges.front();
+ for ( size_t iW = 0; iW < srcWires.size(); ++iW )
+ {
+ StdMeshers_FaceSidePtr srcWire = srcWires[iW];
+ for ( int iE = 0; iE < srcWire->NbEdges(); ++iE )
+ if ( srcE1.IsSame( srcWire->Edge( iE )))
+ {
+ reverse = ( tgtE1.Orientation() != tgtWires[iW]->Edge( iE ).Orientation() );
+ break;
+ }
+ }
}
else
{
if ( mapper.GetErrorCode() != SMESH_Pattern::ERR_OK )
return error("Can't make mesh by source mesh pattern");
+ } // end of projection using Pattern mapping
+
+ {
// -------------------------------------------------------------------------
// mapper doesn't take care of nodes already existing on edges and vertices,
// so we must merge nodes created by it with existing ones
continue; // do not treat sm of degen VERTEX
}
- // Sort new and old nodes of a submesh separately
+ // Sort new and old nodes of a sub-mesh separately
bool isSeam = helper.IsRealSeam( sm->GetId() );
// The mapper can't create quadratic elements, so convert if needed
// ----------------------------------------------------------------
+ SMDS_ElemIteratorPtr faceIt;
faceIt = srcSubMesh->GetSubMeshDS()->GetElements();
bool srcIsQuad = faceIt->next()->IsQuadratic();
faceIt = tgtSubMesh->GetSubMeshDS()->GetElements();
editor.ConvertToQuadratic(/*theForce3d=*/false, tgtFaces, false);
}
-
- } // end of projection using Pattern mapping
+ } // end of coincident nodes and quadratic elements treatment
if ( !projDone || is1DComputed )