#include "SMDS_VolumeTool.hxx"
#include "SMDS_EdgePosition.hxx"
#include "SMDS_PolyhedralVolumeOfNodes.hxx"
+#include "SMDS_FacePosition.hxx"
#include "SMESHDS_Group.hxx"
#include "SMESHDS_Mesh.hxx"
#include <gp_Pln.hxx>
#include <BRep_Tool.hxx>
#include <Geom_Curve.hxx>
+#include <Geom_Surface.hxx>
+#include <Geom2d_Curve.hxx>
+#include <Extrema_GenExtPS.hxx>
+#include <Extrema_POnSurf.hxx>
+#include <GeomAdaptor_Surface.hxx>
+#include <ElCLib.hxx>
#include <map>
// connected to that node along an element edge
//=======================================================================
-void laplacianSmooth(SMESHDS_Mesh * theMesh,
- const SMDS_MeshNode* theNode,
- const set<const SMDS_MeshElement*> & theElems,
- const set<const SMDS_MeshNode*> & theFixedNodes)
+void laplacianSmooth(const SMDS_MeshNode* theNode,
+ const Handle(Geom_Surface)& theSurface,
+ map< const SMDS_MeshNode*, gp_XY* >& theUVMap)
{
// find surrounding nodes
+
set< const SMDS_MeshNode* > nodeSet;
SMDS_ElemIteratorPtr elemIt = theNode->GetInverseElementIterator();
while ( elemIt->more() )
{
const SMDS_MeshElement* elem = elemIt->next();
- if ( theElems.find( elem ) == theElems.end() )
- continue;
- if (elem->IsPoly())
- continue;
- int i = 0, iNode = 0;
- const SMDS_MeshNode* aNodes [4];
+ // put all nodes in array
+ int nbNodes = 0, iNode = 0;
+ vector< const SMDS_MeshNode*> aNodes( elem->NbNodes() );
SMDS_ElemIteratorPtr itN = elem->nodesIterator();
while ( itN->more() )
{
- aNodes[ i ] = static_cast<const SMDS_MeshNode*>( itN->next() );
- if ( aNodes[ i ] == theNode )
- iNode = i;
- else
- nodeSet.insert( aNodes[ i ] );
- i++;
- }
- if ( elem->NbNodes() == 4 ) { // remove an opposite node
- iNode += ( iNode < 2 ) ? 2 : -2;
- nodeSet.erase( aNodes[ iNode ]);
+ aNodes[ nbNodes ] = static_cast<const SMDS_MeshNode*>( itN->next() );
+ if ( aNodes[ nbNodes ] == theNode )
+ iNode = nbNodes; // index of theNode within aNodes
+ nbNodes++;
}
+ // add linked nodes
+ int iAfter = ( iNode + 1 == nbNodes ) ? 0 : iNode + 1;
+ nodeSet.insert( aNodes[ iAfter ]);
+ int iBefore = ( iNode == 0 ) ? nbNodes - 1 : iNode - 1;
+ nodeSet.insert( aNodes[ iBefore ]);
}
// compute new coodrs
+
double coord[] = { 0., 0., 0. };
set< const SMDS_MeshNode* >::iterator nodeSetIt = nodeSet.begin();
for ( ; nodeSetIt != nodeSet.end(); nodeSetIt++ ) {
const SMDS_MeshNode* node = (*nodeSetIt);
- coord[0] += node->X();
- coord[1] += node->Y();
- coord[2] += node->Z();
+ if ( theSurface.IsNull() ) { // smooth in 3D
+ coord[0] += node->X();
+ coord[1] += node->Y();
+ coord[2] += node->Z();
+ }
+ else { // smooth in 2D
+ gp_XY* uv = theUVMap[ node ];
+ coord[0] += uv->X();
+ coord[1] += uv->Y();
+ }
+ }
+ int nbNodes = nodeSet.size();
+ coord[0] /= nbNodes;
+ coord[1] /= nbNodes;
+
+ if ( !theSurface.IsNull() ) {
+ theUVMap[ theNode ]->SetCoord( coord[0], coord[1] );
+ gp_Pnt p3d = theSurface->Value( coord[0], coord[1] );
+ coord[0] = p3d.X();
+ coord[1] = p3d.Y();
+ coord[2] = p3d.Z();
}
- double nbNodes = nodeSet.size();
- theMesh->MoveNode (theNode,
- coord[0]/nbNodes,
- coord[1]/nbNodes,
- coord[2]/nbNodes);
+ else
+ coord[2] /= nbNodes;
+
+ // move node
+
+ const_cast< SMDS_MeshNode* >( theNode )->setXYZ(coord[0],coord[1],coord[2]);
}
//=======================================================================
// surrounding elements
//=======================================================================
-void centroidalSmooth(SMESHDS_Mesh * theMesh,
- const SMDS_MeshNode* theNode,
- const set<const SMDS_MeshElement*> & theElems,
- const set<const SMDS_MeshNode*> & theFixedNodes)
+void centroidalSmooth(const SMDS_MeshNode* theNode,
+ const Handle(Geom_Surface)& theSurface,
+ map< const SMDS_MeshNode*, gp_XY* >& theUVMap)
{
gp_XYZ aNewXYZ(0.,0.,0.);
SMESH::Controls::Area anAreaFunc;
double totalArea = 0.;
int nbElems = 0;
+ // compute new XYZ
+
SMDS_ElemIteratorPtr elemIt = theNode->GetInverseElementIterator();
while ( elemIt->more() )
{
const SMDS_MeshElement* elem = elemIt->next();
- if ( theElems.find( elem ) == theElems.end() )
- continue;
-
nbElems++;
gp_XYZ elemCenter(0.,0.,0.);
const SMDS_MeshNode* aNode = static_cast<const SMDS_MeshNode*>( itN->next() );
gp_XYZ aP( aNode->X(), aNode->Y(), aNode->Z() );
aNodePoints.push_back( aP );
+ if ( !theSurface.IsNull() ) { // smooth in 2D
+ gp_XY* uv = theUVMap[ aNode ];
+ aP.SetCoord( uv->X(), uv->Y(), 0. );
+ }
elemCenter += aP;
}
double elemArea = anAreaFunc.GetValue( aNodePoints );
aNewXYZ += elemCenter * elemArea;
}
aNewXYZ /= totalArea;
- theMesh->MoveNode (theNode,
- aNewXYZ.X(),
- aNewXYZ.Y(),
- aNewXYZ.Z());
+ if ( !theSurface.IsNull() ) {
+ theUVMap[ theNode ]->SetCoord( aNewXYZ.X(), aNewXYZ.Y() );
+ aNewXYZ = theSurface->Value( aNewXYZ.X(), aNewXYZ.Y() ).XYZ();
+ }
+
+ // move node
+
+ const_cast< SMDS_MeshNode* >( theNode )->setXYZ(aNewXYZ.X(),aNewXYZ.Y(),aNewXYZ.Z());
}
+//=======================================================================
+//function : getClosestUV
+//purpose : return UV of closest projection
+//=======================================================================
+
+static bool getClosestUV (Extrema_GenExtPS& projector,
+ const gp_Pnt& point,
+ gp_XY & result)
+{
+ projector.Perform( point );
+ if ( projector.IsDone() ) {
+ double u, v, minVal = DBL_MAX;
+ for ( int i = projector.NbExt(); i > 0; i-- )
+ if ( projector.Value( i ) < minVal ) {
+ minVal = projector.Value( i );
+ projector.Point( i ).Parameter( u, v );
+ }
+ result.SetCoord( u, v );
+ return true;
+ }
+ return false;
+}
//=======================================================================
//function : Smooth
//purpose : Smooth theElements during theNbIterations or until a worst
{
MESSAGE((theSmoothMethod==LAPLACIAN ? "LAPLACIAN" : "CENTROIDAL") << "--::Smooth()");
+ if ( theTgtAspectRatio < 1.0 )
+ theTgtAspectRatio = 1.0;
+
+ SMESH::Controls::AspectRatio aQualityFunc;
+
SMESHDS_Mesh* aMesh = GetMeshDS();
+
if ( theElems.empty() ) {
- // add all faces
+ // add all faces to theElems
SMDS_FaceIteratorPtr fIt = aMesh->facesIterator();
while ( fIt->more() )
theElems.insert( fIt->next() );
}
+ // get all face ids theElems are on
+ set< int > faceIdSet;
+ set< const SMDS_MeshElement* >::iterator itElem;
+ for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ ) {
+ int fId = FindShape( *itElem );
+ // check that corresponding submesh exists and a shape is face
+ if (fId &&
+ faceIdSet.find( fId ) == faceIdSet.end() &&
+ aMesh->MeshElements( fId )) {
+ TopoDS_Shape F = aMesh->IndexToShape( fId );
+ if ( !F.IsNull() && F.ShapeType() == TopAbs_FACE )
+ faceIdSet.insert( fId );
+ }
+ }
+ faceIdSet.insert( 0 ); // to smooth elements that are not on any TopoDS_Face
- set<const SMDS_MeshNode*> setMovableNodes;
-
- // Fill setMovableNodes
+ // ===============================================
+ // smooth elements on each TopoDS_Face separately
+ // ===============================================
- map< const SMDS_MeshNode*, int > mapNodeNbFaces;
- set< const SMDS_MeshElement* >::iterator itElem;
- for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ )
+ set< int >::reverse_iterator fId = faceIdSet.rbegin(); // treate 0 fId at the end
+ for ( ; fId != faceIdSet.rend(); ++fId )
{
- const SMDS_MeshElement* elem = (*itElem);
- if ( !elem || elem->GetType() != SMDSAbs_Face )
- continue;
+ // get face surface and submesh
+ Handle(Geom_Surface) surface;
+ SMESHDS_SubMesh* faceSubMesh = 0;
+ TopoDS_Face face;
+ double fToler2 = 0, vPeriod = 0., uPeriod = 0.;
+ double u1 = 0, u2 = 0, v1 = 0, v2 = 0;
+ bool isUPeriodic = false, isVPeriodic = false;
+ if ( *fId ) {
+ face = TopoDS::Face( aMesh->IndexToShape( *fId ));
+ surface = BRep_Tool::Surface( face );
+ faceSubMesh = aMesh->MeshElements( *fId );
+ fToler2 = BRep_Tool::Tolerance( face );
+ fToler2 *= fToler2;
+ isUPeriodic = surface->IsUPeriodic();
+ if ( isUPeriodic )
+ vPeriod = surface->UPeriod();
+ isVPeriodic = surface->IsVPeriodic();
+ if ( isVPeriodic )
+ uPeriod = surface->VPeriod();
+ surface->Bounds( u1, u2, v1, v2 );
+ }
+ // ---------------------------------------------------------
+ // for elements on a face, find movable and fixed nodes and
+ // compute UV for them
+ // ---------------------------------------------------------
+ bool checkBoundaryNodes = false;
+ set<const SMDS_MeshNode*> setMovableNodes, checkedNodes;
+ map< const SMDS_MeshNode*, gp_XY* > uvMap, uvMap2;
+ list< gp_XY > listUV; // uvs the 2 maps refer to
+ list< const SMDS_MeshElement* > elemsOnFace;
+
+ Extrema_GenExtPS projector;
+ GeomAdaptor_Surface surfAdaptor;
+ if ( !surface.IsNull() ) {
+ surfAdaptor.Load( surface );
+ projector.Initialize( surfAdaptor, 20,20, 1e-5,1e-5 );
+ }
+ int nbElemOnFace = 0;
+ itElem = theElems.begin();
+ while ( itElem != theElems.end() ) // loop on not yet smoothed elements
+ {
+ const SMDS_MeshElement* elem = (*itElem);
+ if ( !elem || elem->GetType() != SMDSAbs_Face || elem->NbNodes() < 3 ||
+ ( faceSubMesh && !faceSubMesh->Contains( elem ))) {
+ ++itElem;
+ continue;
+ }
+ elemsOnFace.push_back( elem );
+ theElems.erase( itElem++ );
+ nbElemOnFace++;
- SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- while ( itN->more() ) {
- const SMDS_MeshNode* node =
- static_cast<const SMDS_MeshNode*>( itN->next() );
+ // loop on elem nodes
+ SMDS_ElemIteratorPtr itN = elem->nodesIterator();
+ while ( itN->more() )
+ {
+ const SMDS_MeshNode* node =
+ static_cast<const SMDS_MeshNode*>( itN->next() );
+ if ( !checkedNodes.insert( node ).second )
+ continue;
+ // get UV on face
+ gp_XY uv( 0, 0 );
+ bool project = !surface.IsNull();
+ gp_Pnt pNode ( node->X(), node->Y(), node->Z() );
+ const SMDS_PositionPtr& pos = node->GetPosition();
+ SMDS_TypeOfPosition posType = SMDS_TOP_3DSPACE;
+ if ( faceSubMesh && pos.get() ) {
+ posType = pos->GetTypeOfPosition();
+ if ( posType == SMDS_TOP_FACE ) {
+ SMDS_FacePosition* fPos = ( SMDS_FacePosition* ) pos.get();
+ uv.SetCoord( fPos->GetUParameter(), fPos->GetVParameter() );
+ gp_Pnt pSurf = surface->Value( uv.X(), uv.Y() );
+ project = pSurf.SquareDistance( pNode ) > fToler2;
+ }
+ }
+ if ( project ) {
+ if ( !getClosestUV( projector, pNode, uv ))
+ MESSAGE("Node Projection Failed " << node);
+ if ( isUPeriodic )
+ uv.SetX( ElCLib::InPeriod( uv.X(), u1, u2 ));
+ if ( isVPeriodic )
+ uv.SetY( ElCLib::InPeriod( uv.Y(), v1, v2 ));
+ }
+ if ( !surface.IsNull() ) {
+ listUV.push_back( uv );
+ uvMap.insert( make_pair( node, &listUV.back() ));
+ }
- if ( theFixedNodes.find( node ) != theFixedNodes.end() )
- continue;
+ if ( posType == SMDS_TOP_3DSPACE )
+ checkBoundaryNodes = true;
- // if node is on edge => it is fixed
- SMDS_PositionPtr aPositionPtr = node->GetPosition();
- if ( aPositionPtr.get() &&
- (aPositionPtr->GetTypeOfPosition() == SMDS_TOP_EDGE ||
- aPositionPtr->GetTypeOfPosition() == SMDS_TOP_VERTEX)) {
- theFixedNodes.insert( node );
- continue;
+ // movable or not?
+ if (posType != SMDS_TOP_EDGE &&
+ posType != SMDS_TOP_VERTEX &&
+ theFixedNodes.find( node ) == theFixedNodes.end())
+ {
+ // check if all faces around the node are on faceSubMesh
+ SMDS_ElemIteratorPtr eIt = node->GetInverseElementIterator();
+ bool all = true;
+ while ( eIt->more() && all ) {
+ const SMDS_MeshElement* e = eIt->next();
+ if ( e->GetType() == SMDSAbs_Face )
+ all = faceSubMesh->Contains( e );
+ }
+ if ( all )
+ setMovableNodes.insert( node );
+ else
+ checkBoundaryNodes = true;
+ }
+
+ } // loop on elem nodes
+
+ if ( nbElemOnFace == faceSubMesh->NbElements() )
+ break; // all elements found
+
+ } // loop on not yet smoothed elements
+
+ if ( !faceSubMesh || elemsOnFace.size() != nbElemOnFace )
+ checkBoundaryNodes = true;
+
+ // fix nodes on boundary of elemsOnFace
+
+ if ( checkBoundaryNodes )
+ {
+ typedef pair<const SMDS_MeshNode*, const SMDS_MeshNode*> TLink;
+ map< TLink, int > linkNbMap; // how many times a link encounters in elemsOnFace
+ map< TLink, int >::iterator link_nb;
+ // put all elements links to linkNbMap
+ list< const SMDS_MeshElement* >::iterator elemIt = elemsOnFace.begin();
+ for ( ; elemIt != elemsOnFace.end(); ++elemIt )
+ {
+ // put elem nodes in array
+ vector< const SMDS_MeshNode* > nodes;
+ nodes.reserve( (*elemIt)->NbNodes() + 1 );
+ SMDS_ElemIteratorPtr itN = (*elemIt)->nodesIterator();
+ while ( itN->more() )
+ nodes.push_back( static_cast<const SMDS_MeshNode*>( itN->next() ));
+ nodes.push_back( nodes.front() );
+ // loop on elem links: insert them in linkNbMap
+ for ( int iN = 1; iN < nodes.size(); ++iN ) {
+ TLink link;
+ if ( nodes[ iN-1 ]->GetID() < nodes[ iN ]->GetID() )
+ link = make_pair( nodes[ iN-1 ], nodes[ iN ] );
+ else
+ link = make_pair( nodes[ iN ], nodes[ iN-1 ] );
+ link_nb = linkNbMap.find( link );
+ if ( link_nb == linkNbMap.end() )
+ linkNbMap.insert( make_pair ( link, 1 ));
+ else
+ link_nb->second++;
+ }
+ }
+ // remove nodes that are in links encountered only once from setMovableNodes
+ for ( link_nb = linkNbMap.begin(); link_nb != linkNbMap.end(); ++link_nb ) {
+ if ( link_nb->second == 1 ) {
+ setMovableNodes.erase( link_nb->first.first );
+ setMovableNodes.erase( link_nb->first.second );
+ }
}
- // fill mapNodeNbFaces in order to detect fixed boundary nodes
- map<const SMDS_MeshNode*,int>::iterator nodeNbFacesIt =
- mapNodeNbFaces.find ( node );
- if ( nodeNbFacesIt == mapNodeNbFaces.end() )
- mapNodeNbFaces.insert( map<const SMDS_MeshNode*,int>::value_type( node, 1 ));
- else
- (*nodeNbFacesIt).second++;
}
- }
- // put not fixed nodes in setMovableNodes
- map<const SMDS_MeshNode*,int>::iterator nodeNbFacesIt =
- mapNodeNbFaces.begin();
- for ( ; nodeNbFacesIt != mapNodeNbFaces.end(); nodeNbFacesIt++ ) {
- const SMDS_MeshNode* node = (*nodeNbFacesIt).first;
- // a node is on free boundary if it is shared by 1-2 faces
- if ( (*nodeNbFacesIt).second > 2 )
- setMovableNodes.insert( node );
- else
- theFixedNodes.insert( node );
- }
- // SMOOTHING //
+ // -----------------------------------------------------
+ // for nodes on seam edge, compute one more UV ( uvMap2 );
+ // find movable nodes linked to nodes on seam and which
+ // are to be smoothed using the second UV ( uvMap2 )
+ // -----------------------------------------------------
- if ( theTgtAspectRatio < 1.0 )
- theTgtAspectRatio = 1.0;
+ set<const SMDS_MeshNode*> nodesNearSeam; // to smooth using uvMap2
+ if ( !surface.IsNull() )
+ {
+ TopExp_Explorer eExp( face, TopAbs_EDGE );
+ for ( ; eExp.More(); eExp.Next() )
+ {
+ TopoDS_Edge edge = TopoDS::Edge( eExp.Current() );
+ if ( !BRep_Tool::IsClosed( edge, face ))
+ continue;
+ SMESHDS_SubMesh* sm = aMesh->MeshElements( edge );
+ if ( !sm ) continue;
+ // find out which parameter varies for a node on seam
+ double f,l;
+ gp_Pnt2d uv1, uv2;
+ Handle(Geom2d_Curve) pcurve = BRep_Tool::CurveOnSurface( edge, face, f, l );
+ if ( pcurve.IsNull() ) continue;
+ uv1 = pcurve->Value( f );
+ edge.Reverse();
+ pcurve = BRep_Tool::CurveOnSurface( edge, face, f, l );
+ if ( pcurve.IsNull() ) continue;
+ uv2 = pcurve->Value( f );
+ int iPar = Abs( uv1.X() - uv2.X() ) > Abs( uv1.Y() - uv2.Y() ) ? 1 : 2;
+ // assure uv1 < uv2
+ if ( uv1.Coord( iPar ) > uv2.Coord( iPar )) {
+ gp_Pnt2d tmp = uv1; uv1 = uv2; uv2 = tmp;
+ }
+ // get nodes on seam and its vertices
+ list< const SMDS_MeshNode* > seamNodes;
+ SMDS_NodeIteratorPtr nSeamIt = sm->GetNodes();
+ while ( nSeamIt->more() )
+ seamNodes.push_back( nSeamIt->next() );
+ TopExp_Explorer vExp( edge, TopAbs_VERTEX );
+ for ( ; vExp.More(); vExp.Next() ) {
+ sm = aMesh->MeshElements( vExp.Current() );
+ if ( sm ) {
+ nSeamIt = sm->GetNodes();
+ while ( nSeamIt->more() )
+ seamNodes.push_back( nSeamIt->next() );
+ }
+ }
+ // loop on nodes on seam
+ list< const SMDS_MeshNode* >::iterator noSeIt = seamNodes.begin();
+ for ( ; noSeIt != seamNodes.end(); ++noSeIt )
+ {
+ const SMDS_MeshNode* nSeam = *noSeIt;
+ map< const SMDS_MeshNode*, gp_XY* >::iterator n_uv = uvMap.find( nSeam );
+ if ( n_uv == uvMap.end() )
+ continue;
+ // set the first UV
+ n_uv->second->SetCoord( iPar, uv1.Coord( iPar ));
+ // set the second UV
+ listUV.push_back( *n_uv->second );
+ listUV.back().SetCoord( iPar, uv2.Coord( iPar ));
+ if ( uvMap2.empty() )
+ uvMap2 = uvMap; // copy the uvMap contents
+ uvMap2[ nSeam ] = &listUV.back();
+
+ // collect movable nodes linked to ones on seam in nodesNearSeam
+ SMDS_ElemIteratorPtr eIt = nSeam->GetInverseElementIterator();
+ while ( eIt->more() )
+ {
+ const SMDS_MeshElement* e = eIt->next();
+ if ( e->GetType() != SMDSAbs_Face )
+ continue;
+ int nbUseMap1 = 0, nbUseMap2 = 0;
+ SMDS_ElemIteratorPtr nIt = e->nodesIterator();
+ while ( nIt->more() )
+ {
+ const SMDS_MeshNode* n =
+ static_cast<const SMDS_MeshNode*>( nIt->next() );
+ if (n == nSeam ||
+ setMovableNodes.find( n ) == setMovableNodes.end() )
+ continue;
+ // add only nodes being closer to uv2 than to uv1
+ gp_Pnt pMid (0.5 * ( n->X() + nSeam->X() ),
+ 0.5 * ( n->Y() + nSeam->Y() ),
+ 0.5 * ( n->Z() + nSeam->Z() ));
+ gp_XY uv;
+ getClosestUV( projector, pMid, uv );
+ if ( uv.Coord( iPar ) > uvMap[ n ]->Coord( iPar ) ) {
+ nodesNearSeam.insert( n );
+ nbUseMap2++;
+ }
+ else
+ nbUseMap1++;
+ }
+ // for centroidalSmooth all element nodes must
+ // be on one side of a seam
+ if ( theSmoothMethod == CENTROIDAL && nbUseMap1 && nbUseMap2 )
+ {
+ SMDS_ElemIteratorPtr nIt = e->nodesIterator();
+ while ( nIt->more() ) {
+ const SMDS_MeshNode* n =
+ static_cast<const SMDS_MeshNode*>( nIt->next() );
+ setMovableNodes.erase( n );
+ }
+ }
+ }
+ } // loop on nodes on seam
+ } // loop on edge of a face
+ } // if ( !face.IsNull() )
+
+ // -------------
+ // SMOOTHING //
+ // -------------
+
+ set<const SMDS_MeshNode*>::iterator nodeToMove;
+ int it = -1;
+ double maxRatio = -1., maxDisplacement = -1.;
+ for ( it = 0; it < theNbIterations; it++ )
+ {
+ maxDisplacement = 0.;
+ nodeToMove = setMovableNodes.begin();
+ for ( ; nodeToMove != setMovableNodes.end(); nodeToMove++ )
+ {
+ const SMDS_MeshNode* node = (*nodeToMove);
+ gp_XYZ aPrevPos ( node->X(), node->Y(), node->Z() );
- SMESH::Controls::AspectRatio aQualityFunc;
+ // smooth
+ bool map2 = ( nodesNearSeam.find( node ) != nodesNearSeam.end() );
+ if ( theSmoothMethod == LAPLACIAN )
+ laplacianSmooth( node, surface, map2 ? uvMap2 : uvMap );
+ else
+ centroidalSmooth( node, surface, map2 ? uvMap2 : uvMap );
- for ( int it = 0; it < theNbIterations; it++ )
- {
- Standard_Real maxDisplacement = 0.;
- set<const SMDS_MeshNode*>::iterator movableNodesIt
- = setMovableNodes.begin();
- for ( ; movableNodesIt != setMovableNodes.end(); movableNodesIt++ )
- {
- const SMDS_MeshNode* node = (*movableNodesIt);
- gp_XYZ aPrevPos ( node->X(), node->Y(), node->Z() );
+ // node displacement
+ gp_XYZ aNewPos ( node->X(), node->Y(), node->Z() );
+ Standard_Real aDispl = (aPrevPos - aNewPos).SquareModulus();
+ if ( aDispl > maxDisplacement )
+ maxDisplacement = aDispl;
+ }
+ // no node movement => exit
+ if ( maxDisplacement < 1.e-16 ) {
+ MESSAGE("-- no node movement --");
+ break;
+ }
- // smooth
- if ( theSmoothMethod == LAPLACIAN )
- laplacianSmooth( aMesh, node, theElems, theFixedNodes );
- else
- centroidalSmooth( aMesh, node, theElems, theFixedNodes );
+ // check elements quality
+ maxRatio = 0;
+ for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ )
+ {
+ const SMDS_MeshElement* elem = (*itElem);
+ if ( !elem || elem->GetType() != SMDSAbs_Face )
+ continue;
+ SMESH::Controls::TSequenceOfXYZ aPoints;
+ if ( aQualityFunc.GetPoints( elem, aPoints )) {
+ double aValue = aQualityFunc.GetValue( aPoints );
+ if ( aValue > maxRatio )
+ maxRatio = aValue;
+ }
+ }
+ if ( maxRatio <= theTgtAspectRatio ) {
+ MESSAGE("-- quality achived --");
+ break;
+ }
+ if (it+1 == theNbIterations) {
+ MESSAGE("-- Iteration limit exceeded --");
+ }
+ } // smoothing iterations
- // displacement
- gp_XYZ aNewPos ( node->X(), node->Y(), node->Z() );
- Standard_Real aDispl = (aPrevPos - aNewPos).SquareModulus();
- if ( aDispl > maxDisplacement )
- maxDisplacement = aDispl;
- }
- // no node movement => exit
- if ( maxDisplacement < 1.e-16 ) {
- MESSAGE("-- no node movement -- maxDisplacement: " << maxDisplacement << " it "<< it);
- break;
- }
+ MESSAGE(" Face id: " << *fId <<
+ " Nb iterstions: " << it <<
+ " Displacement: " << maxDisplacement <<
+ " Aspect Ratio " << maxRatio);
- // check elements quality
- double maxRatio = 0;
- for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ )
+ // ---------------------------------------
+ // new nodes positions are computed,
+ // record movement in DS and set new UV
+ // ---------------------------------------
+
+ nodeToMove = setMovableNodes.begin();
+ for ( ; nodeToMove != setMovableNodes.end(); nodeToMove++ )
{
- const SMDS_MeshElement* elem = (*itElem);
- if ( !elem || elem->GetType() != SMDSAbs_Face )
- continue;
- SMESH::Controls::TSequenceOfXYZ aPoints;
- if ( aQualityFunc.GetPoints( elem, aPoints )) {
- double aValue = aQualityFunc.GetValue( aPoints );
- if ( aValue > maxRatio )
- maxRatio = aValue;
+ SMDS_MeshNode* node = const_cast< SMDS_MeshNode* > (*nodeToMove);
+ aMesh->MoveNode( node, node->X(), node->Y(), node->Z() );
+ map< const SMDS_MeshNode*, gp_XY* >::iterator node_uv = uvMap.find( node );
+ if ( node_uv != uvMap.end() ) {
+ gp_XY* uv = node_uv->second;
+ node->SetPosition
+ ( SMDS_PositionPtr( new SMDS_FacePosition( *fId, uv->X(), uv->Y() )));
}
}
- if ( maxRatio <= theTgtAspectRatio ) {
- MESSAGE("-- quality achived -- maxRatio " << maxRatio << " it "<< it);
- break;
- }
- if (it+1 == theNbIterations) {
- MESSAGE("-- Iteration limit exceeded --");
- }
- }
+
+ } // loop on face ids
}
//=======================================================================
