// Module : SMESH
// $Header$
-using namespace std;
#include "StdMeshers_MEFISTO_2D.hxx"
+
#include "SMESH_Gen.hxx"
#include "SMESH_Mesh.hxx"
#include "SMESH_subMesh.hxx"
+#include "SMESH_Block.hxx"
+#include "SMESH_MesherHelper.hxx"
+#include "StdMeshers_FaceSide.hxx"
#include "StdMeshers_MaxElementArea.hxx"
#include "StdMeshers_LengthFromEdges.hxx"
#include <TopoDS_Face.hxx>
#include <TopoDS_Edge.hxx>
-#include <TopoDS_Shape.hxx>
#include <Geom_Surface.hxx>
-#include <GeomAdaptor_Curve.hxx>
#include <Geom2d_Curve.hxx>
#include <gp_Pnt2d.hxx>
#include <BRep_Tool.hxx>
#include <BRepTools.hxx>
-#include <BRepTools_WireExplorer.hxx>
-#include <GCPnts_AbscissaPoint.hxx>
-#include <GCPnts_UniformAbscissa.hxx>
-#include <TColStd_ListIteratorOfListOfInteger.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopTools_ListOfShape.hxx>
+#include <TopTools_MapOfShape.hxx>
+
+using namespace std;
//=============================================================================
/*!
*/
//=============================================================================
-StdMeshers_MEFISTO_2D::StdMeshers_MEFISTO_2D(int hypId, int studyId,
- SMESH_Gen * gen):SMESH_2D_Algo(hypId, studyId, gen)
+StdMeshers_MEFISTO_2D::StdMeshers_MEFISTO_2D(int hypId, int studyId, SMESH_Gen * gen):
+ SMESH_2D_Algo(hypId, studyId, gen)
{
MESSAGE("StdMeshers_MEFISTO_2D::StdMeshers_MEFISTO_2D");
_name = "MEFISTO_2D";
//=============================================================================
bool StdMeshers_MEFISTO_2D::CheckHypothesis
- (SMESH_Mesh& aMesh,
- const TopoDS_Shape& aShape,
+ (SMESH_Mesh& aMesh,
+ const TopoDS_Shape& aShape,
SMESH_Hypothesis::Hypothesis_Status& aStatus)
{
- //MESSAGE("StdMeshers_MEFISTO_2D::CheckHypothesis");
+ _hypMaxElementArea = NULL;
+ _hypLengthFromEdges = NULL;
- _hypMaxElementArea = NULL;
- _hypLengthFromEdges = NULL;
+ list <const SMESHDS_Hypothesis * >::const_iterator itl;
+ const SMESHDS_Hypothesis *theHyp;
- list <const SMESHDS_Hypothesis * >::const_iterator itl;
- const SMESHDS_Hypothesis *theHyp;
+ const list <const SMESHDS_Hypothesis * >&hyps = GetUsedHypothesis(aMesh, aShape);
+ int nbHyp = hyps.size();
+ if (!nbHyp)
+ {
+ aStatus = SMESH_Hypothesis::HYP_MISSING;
+ return false; // can't work with no hypothesis
+ }
- const list <const SMESHDS_Hypothesis * >&hyps = GetUsedHypothesis(aMesh, aShape);
- int nbHyp = hyps.size();
- if (!nbHyp)
- {
- aStatus = SMESH_Hypothesis::HYP_MISSING;
- return false; // can't work with no hypothesis
- }
+ itl = hyps.begin();
+ theHyp = (*itl); // use only the first hypothesis
+
+ string hypName = theHyp->GetName();
+
+ bool isOk = false;
+
+ if (hypName == "MaxElementArea")
+ {
+ _hypMaxElementArea = static_cast<const StdMeshers_MaxElementArea *>(theHyp);
+ ASSERT(_hypMaxElementArea);
+ _maxElementArea = _hypMaxElementArea->GetMaxArea();
+ _edgeLength = 0;
+ isOk = true;
+ aStatus = SMESH_Hypothesis::HYP_OK;
+ }
+
+ else if (hypName == "LengthFromEdges")
+ {
+ _hypLengthFromEdges = static_cast<const StdMeshers_LengthFromEdges *>(theHyp);
+ ASSERT(_hypLengthFromEdges);
+ _edgeLength = 0;
+ _maxElementArea = 0;
+ isOk = true;
+ aStatus = SMESH_Hypothesis::HYP_OK;
+ }
+ else
+ aStatus = SMESH_Hypothesis::HYP_INCOMPATIBLE;
- itl = hyps.begin();
- theHyp = (*itl); // use only the first hypothesis
-
- string hypName = theHyp->GetName();
- //int hypId = theHyp->GetID();
- //SCRUTE(hypName);
-
- bool isOk = false;
-
- if (hypName == "MaxElementArea")
- {
- _hypMaxElementArea = static_cast<const StdMeshers_MaxElementArea *>(theHyp);
- ASSERT(_hypMaxElementArea);
- _maxElementArea = _hypMaxElementArea->GetMaxArea();
- _edgeLength = 0;
- isOk = true;
- aStatus = SMESH_Hypothesis::HYP_OK;
- }
-
- else if (hypName == "LengthFromEdges")
- {
- _hypLengthFromEdges = static_cast<const StdMeshers_LengthFromEdges *>(theHyp);
- ASSERT(_hypLengthFromEdges);
- _edgeLength = 0;
- _maxElementArea = 0;
- isOk = true;
- aStatus = SMESH_Hypothesis::HYP_OK;
- }
- else
- aStatus = SMESH_Hypothesis::HYP_INCOMPATIBLE;
-
- if (isOk)
- {
- isOk = false;
- if (_maxElementArea > 0)
- {
-// _edgeLength = 2 * sqrt(_maxElementArea); // triangles : minorant
- _edgeLength = sqrt(2. * _maxElementArea/sqrt(3.0));
- isOk = true;
- }
- else
- isOk = (_hypLengthFromEdges != NULL); // **** check mode
- if (!isOk)
- aStatus = SMESH_Hypothesis::HYP_BAD_PARAMETER;
- }
-
- //SCRUTE(_edgeLength);
- //SCRUTE(_maxElementArea);
- return isOk;
+ if (isOk)
+ {
+ isOk = false;
+ if (_maxElementArea > 0)
+ {
+ //_edgeLength = 2 * sqrt(_maxElementArea); // triangles : minorant
+ _edgeLength = sqrt(2. * _maxElementArea/sqrt(3.0));
+ isOk = true;
+ }
+ else
+ isOk = (_hypLengthFromEdges != NULL); // **** check mode
+ if (!isOk)
+ aStatus = SMESH_Hypothesis::HYP_BAD_PARAMETER;
+ }
+
+ return isOk;
}
//=============================================================================
{
MESSAGE("StdMeshers_MEFISTO_2D::Compute");
- if (_hypLengthFromEdges)
- _edgeLength = ComputeEdgeElementLength(aMesh, aShape);
-
- bool isOk = false;
- //const SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
- //SMESH_subMesh *theSubMesh = aMesh.GetSubMesh(aShape);
+ TopoDS_Face F = TopoDS::Face(aShape.Oriented(TopAbs_FORWARD));
+
+ // get all edges of a face
+ TopoDS_Vertex V1;
+ list< TopoDS_Edge > edges;
+ list< int > nbEdgesInWires;
+ int nbWires = SMESH_Block::GetOrderedEdges (F, V1, edges, nbEdgesInWires);
+
+ if (_hypLengthFromEdges) _edgeLength = 0;
+
+ // split list of all edges into separate wires
+ TWireVector wires ( nbWires );
+ list< int >::iterator nbE = nbEdgesInWires.begin();
+ list< TopoDS_Edge >::iterator from, to;
+ from = to = edges.begin();
+ for ( int iW = 0; iW < nbWires; ++iW )
+ {
+ std::advance( to, *nbE++ );
+ list< TopoDS_Edge > wireEdges( from, to );
+ // assure that there is a node on the first vertex
+ // as StdMeshers_FaceSide::GetUVPtStruct() requires
+ while ( !VertexNode( TopExp::FirstVertex( wireEdges.front(), true),
+ aMesh.GetMeshDS()))
+ {
+ wireEdges.splice(wireEdges.end(), wireEdges,
+ wireEdges.begin(), ++wireEdges.begin());
+ if ( from->IsSame( wireEdges.front() )) {
+ MESSAGE( "No nodes on vertices on wire " << iW+1);
+ return false;
+ }
+ }
+ StdMeshers_FaceSide* wire = new StdMeshers_FaceSide( F, wireEdges, &aMesh, true );
+ wires[ iW ] = StdMeshers_FaceSidePtr( wire );
+ if (_hypLengthFromEdges && wire->NbSegments() )
+ _edgeLength += wire->Length() / wire->NbSegments();
+ from = to;
+ }
+ if ( wires[0]->NbSegments() < 3 ) // ex: a circle with 2 segments
+ return false;
- const TopoDS_Face & FF = TopoDS::Face(aShape);
- bool faceIsForward = (FF.Orientation() == TopAbs_FORWARD);
- TopoDS_Face F = TopoDS::Face(FF.Oriented(TopAbs_FORWARD));
+ if (_hypLengthFromEdges && _edgeLength < DBL_MIN )
+ _edgeLength = 100;
- Z nblf; //nombre de lignes fermees (enveloppe en tete)
- Z *nudslf = NULL; //numero du dernier sommet de chaque ligne fermee
- R2 *uvslf = NULL;
- Z nbpti = 0; //nombre points internes futurs sommets de la triangulation
+ // helper builds a quadratic mesh if necessary
+ myTool = new SMESH_MesherHelper(aMesh);
+ auto_ptr<SMESH_MesherHelper> helperDeleter( myTool );
+ _quadraticMesh = myTool->IsQuadraticSubMesh(aShape);
+
+ Z nblf; //nombre de lignes fermees (enveloppe en tete)
+ Z *nudslf = NULL; //numero du dernier sommet de chaque ligne fermee
+ R2 *uvslf = NULL;
+ Z nbpti = 0; //nombre points internes futurs sommets de la triangulation
R2 *uvpti = NULL;
Z nbst;
Z *nust = NULL;
Z ierr = 0;
- Z nutysu = 1; // 1: il existe un fonction areteideale_()
- // Z nutysu=0; // 0: on utilise aretmx
- R aretmx = _edgeLength; // longueur max aretes future triangulation
+ Z nutysu = 1; // 1: il existe un fonction areteideale_()
+ // Z nutysu=0; // 0: on utilise aretmx
+ R aretmx = _edgeLength; // longueur max aretes future triangulation
- nblf = NumberOfWires(F);
+ nblf = nbWires;
nudslf = new Z[1 + nblf];
nudslf[0] = 0;
int iw = 1;
int nbpnt = 0;
- myTool = new SMESH_MesherHelper(aMesh);
- _quadraticMesh = myTool->IsQuadraticSubMesh(aShape);
-
- if ( _quadraticMesh && _hypLengthFromEdges )
- aretmx *= 2.;
-
- myOuterWire = BRepTools::OuterWire(F);
- nbpnt += NumberOfPoints(aMesh, myOuterWire);
- if ( nbpnt < 3 ) { // ex: a circle with 2 segments
- delete myTool; myTool = 0;
- return false;
- }
- nudslf[iw++] = nbpnt;
-
- for (TopExp_Explorer exp(F, TopAbs_WIRE); exp.More(); exp.Next()) {
- const TopoDS_Wire & W = TopoDS::Wire(exp.Current());
- if (!myOuterWire.IsSame(W)) {
- nbpnt += NumberOfPoints(aMesh, W);
- nudslf[iw++] = nbpnt;
- }
+ // count nb of input points
+ for ( int iW = 0; iW < nbWires; ++iW )
+ {
+ nbpnt += wires[iW]->NbSegments();
+ nudslf[iw++] = nbpnt;
}
- // avoid passing same uv points for a vertex common to 2 wires
- TopTools_IndexedDataMapOfShapeListOfShape VWMap;
- if ( iw - 1 > 1 ) // nbofWires > 1
- TopExp::MapShapesAndAncestors( F , TopAbs_VERTEX, TopAbs_WIRE, VWMap );
-
uvslf = new R2[nudslf[nblf]];
- int m = 0;
double scalex, scaley;
ComputeScaleOnFace(aMesh, F, scalex, scaley);
- map<int, const SMDS_MeshNode*> mefistoToDS; // correspondence mefisto index--> points IDNodes
- if ( !LoadPoints(aMesh, F, myOuterWire, uvslf, m,
- mefistoToDS, scalex, scaley, VWMap) ) {
- delete myTool; myTool = 0;
- return false;
- }
+ // correspondence mefisto index --> Nodes
+ vector< const SMDS_MeshNode*> mefistoToDS(nbpnt, (const SMDS_MeshNode*)0);
- for (TopExp_Explorer exp(F, TopAbs_WIRE); exp.More(); exp.Next())
- {
- const TopoDS_Wire & W = TopoDS::Wire(exp.Current());
- if (!myOuterWire.IsSame(W))
- {
- if (! LoadPoints(aMesh, F, W, uvslf, m,
- mefistoToDS, scalex, scaley, VWMap )) {
- delete myTool; myTool = 0;
- return false;
- }
- }
- }
+ // fill input points UV
+ LoadPoints(wires, uvslf, mefistoToDS, scalex, scaley);
- uvst = NULL;
- nust = NULL;
+ // Compute
aptrte(nutysu, aretmx,
nblf, nudslf, uvslf, nbpti, uvpti, nbst, uvst, nbt, nust, ierr);
+ bool isOk = false;
if (ierr == 0)
{
MESSAGE("... End Triangulation Generated Triangle Number " << nbt);
MESSAGE(" Node Number " << nbst);
- StoreResult(aMesh, nbst, uvst, nbt, nust, F,
- faceIsForward, mefistoToDS, scalex, scaley);
+ StoreResult(nbst, uvst, nbt, nust, mefistoToDS, scalex, scaley);
isOk = true;
}
else
{
MESSAGE("Error in Triangulation");
- isOk = false;
}
- if (nudslf != NULL)
- delete[]nudslf;
- if (uvslf != NULL)
- delete[]uvslf;
- if (uvst != NULL)
- delete[]uvst;
- if (nust != NULL)
- delete[]nust;
- delete myTool; myTool = 0;
+ if (nudslf != NULL) delete[]nudslf;
+ if (uvslf != NULL) delete[]uvslf;
+ if (uvst != NULL) delete[]uvst;
+ if (nust != NULL) delete[]nust;
return isOk;
}
//purpose :
//=======================================================================
-static bool fixCommonVertexUV (gp_Pnt2d & theUV,
+static bool fixCommonVertexUV (R2 & theUV,
const TopoDS_Vertex& theV,
- const TopoDS_Wire& theW,
- const TopoDS_Wire& theOW,
const TopoDS_Face& theF,
const TopTools_IndexedDataMapOfShapeListOfShape & theVWMap,
SMESH_Mesh & theMesh,
- bool CreateQuadratic)
+ const double theScaleX,
+ const double theScaleY,
+ const bool theCreateQuadratic)
{
- if( theW.IsSame( theOW ) ||
- !theVWMap.Contains( theV )) return false;
+ if( !theVWMap.Contains( theV )) return false;
// check if there is another wire sharing theV
const TopTools_ListOfShape& WList = theVWMap.FindFromKey( theV );
TopTools_ListIteratorOfListOfShape aWIt;
+ TopTools_MapOfShape aWires;
for ( aWIt.Initialize( WList ); aWIt.More(); aWIt.Next() )
- if ( !theW.IsSame( aWIt.Value() ))
- break;
- if ( !aWIt.More() ) return false;
+ aWires.Add( aWIt.Value() );
+ if ( aWires.Extent() < 2 ) return false;
+
+ TopoDS_Shape anOuterWire = BRepTools::OuterWire(theF);
+ TopoDS_Shape anInnerWire;
+ for ( aWIt.Initialize( WList ); aWIt.More() && anInnerWire.IsNull(); aWIt.Next() )
+ if ( !anOuterWire.IsSame( aWIt.Value() ))
+ anInnerWire = aWIt.Value();
TopTools_ListOfShape EList;
list< double > UList;
// find edges of theW sharing theV
// and find 2d normal to them at theV
gp_Vec2d N(0.,0.);
- TopoDS_Iterator itE( theW );
+ TopoDS_Iterator itE( anInnerWire );
for ( ; itE.More(); itE.Next() )
{
const TopoDS_Edge& E = TopoDS::Edge( itE.Value() );
gp_Vec2d d1;
gp_Pnt2d p;
C2d->D1( u, p, d1 );
- gp_Vec2d n( d1.Y(), -d1.X() );
+ gp_Vec2d n( d1.Y() * theScaleX, -d1.X() * theScaleY);
if ( E.Orientation() == TopAbs_REVERSED )
n.Reverse();
N += n.Normalized();
// define step size by which to move theUV
gp_Pnt2d nextUV; // uv of next node on edge, most distant of the four
+ gp_Pnt2d thisUV( theUV.x, theUV.y );
double maxDist = -DBL_MAX;
TopTools_ListIteratorOfListOfShape aEIt (EList);
list< double >::iterator aUIt = UList.begin();
while ( nIt->more() ) {
const SMDS_MeshNode* node = nIt->next();
// check if node is medium
- if ( CreateQuadratic && SMESH_MesherHelper::IsMedium( node, SMDSAbs_Edge ))
+ if ( theCreateQuadratic && SMESH_MesherHelper::IsMedium( node, SMDSAbs_Edge ))
continue;
const SMDS_EdgePosition* epos =
static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
}
bool isFirstCommon = ( *aUIt == f );
gp_Pnt2d uv = C2d->Value( isFirstCommon ? umin : umax );
- double dist = theUV.SquareDistance( uv );
+ double dist = thisUV.SquareDistance( uv );
if ( dist > maxDist ) {
maxDist = dist;
nextUV = uv;
}
}
R2 uv0, uv1, uv2;
- uv0.x = theUV.X(); uv0.y = theUV.Y();
+ uv0.x = thisUV.X(); uv0.y = thisUV.Y();
uv1.x = nextUV.X(); uv1.y = nextUV.Y();
- uv2.x = uv0.x; uv2.y = uv0.y;
+ uv2.x = thisUV.X(); uv2.y = thisUV.Y();
+
+ uv1.x *= theScaleX; uv1.y *= theScaleY;
+
if ( fixOverlappedLinkUV( uv0, uv1, uv2 ))
{
- double step = theUV.Distance( gp_Pnt2d( uv0.x, uv0.y ));
+ double step = thisUV.Distance( gp_Pnt2d( uv0.x, uv0.y ));
// move theUV along the normal by the step
N *= step;
- MESSAGE("--fixCommonVertexUV move(" << theUV.X() << " " << theUV.Y()
+ MESSAGE("--fixCommonVertexUV move(" << theUV.x << " " << theUV.x
<< ") by (" << N.X() << " " << N.Y() << ")"
<< endl << "--- MAX DIST " << maxDist);
- theUV.SetXY( theUV.XY() + N.XY() );
+ theUV.x += N.X();
+ theUV.y += N.Y();
return true;
}
*/
//=============================================================================
-bool StdMeshers_MEFISTO_2D::LoadPoints(SMESH_Mesh & aMesh,
- const TopoDS_Face & FF,
- const TopoDS_Wire & WW,
- R2 * uvslf,
- int & m,
- map<int, const SMDS_MeshNode*>&mefistoToDS,
- double scalex,
- double scaley,
- const TopTools_IndexedDataMapOfShapeListOfShape& VWMap)
+bool StdMeshers_MEFISTO_2D::LoadPoints(TWireVector & wires,
+ R2 * uvslf,
+ vector<const SMDS_MeshNode*>& mefistoToDS,
+ double scalex,
+ double scaley)
{
- // MESSAGE("StdMeshers_MEFISTO_2D::LoadPoints");
+ // to avoid passing same uv points for a vertex common to 2 wires
+ TopoDS_Face F;
+ TopTools_IndexedDataMapOfShapeListOfShape VWMap;
+ if ( wires.size() > 1 )
+ {
+ F = TopoDS::Face( myTool->GetSubShape() );
+ TopExp::MapShapesAndAncestors( F, TopAbs_VERTEX, TopAbs_WIRE, VWMap );
+ int nbVertices = 0;
+ for ( int iW = 0; iW < wires.size(); ++iW )
+ nbVertices += wires[ iW ]->NbSegments();
+ if ( nbVertices == VWMap.Extent() )
+ VWMap.Clear(); // wires have no common vertices
+ }
- TopoDS_Face F = TopoDS::Face(FF.Oriented(TopAbs_FORWARD));
+ const bool isXConst = false; // meaningles here
+ const double constValue = 0; // meaningles here
+ int m = 0;
list< int > mOnVertex;
- gp_XY scale( scalex, scaley );
-
- TopoDS_Wire W = TopoDS::Wire(WW.Oriented(TopAbs_FORWARD));
- BRepTools_WireExplorer wexp(W, F);
- for ( wexp.Init(W, F); wexp.More(); wexp.Next() )
+ for ( int iW = 0; iW < wires.size(); ++iW )
{
- const TopoDS_Edge & E = wexp.Current();
- bool isForward = (E.Orientation() == TopAbs_FORWARD);
-
- // --- IDNodes of first and last Vertex
+ const vector<UVPtStruct>& uvPtVec = wires[ iW ]->GetUVPtStruct(isXConst,constValue);
- TopoDS_Vertex VFirst, VLast, V;
- TopExp::Vertices(E, VFirst, VLast); // corresponds to f and l
- V = isForward ? VFirst : VLast;
-
- ASSERT(!V.IsNull());
- SMDS_NodeIteratorPtr lid= aMesh.GetSubMesh(V)->GetSubMeshDS()->GetNodes();
- if ( !lid->more() ) {
- MESSAGE (" NO NODE BUILT ON VERTEX ");
- return false;
- }
- const SMDS_MeshNode* idFirst = lid->next();
-
- // --- edge internal IDNodes (relies on good order storage, not checked)
-
- map<double, const SMDS_MeshNode*> params;
- const SMDS_MeshNode * node;
-
- SMDS_NodeIteratorPtr nodeIt= aMesh.GetSubMesh(E)->GetSubMeshDS()->GetNodes();
- while ( nodeIt->more() )
+ vector<UVPtStruct>::const_iterator uvPt = uvPtVec.begin();
+ for ( ++uvPt; uvPt != uvPtVec.end(); ++uvPt )
{
- node = nodeIt->next();
- if ( _quadraticMesh && SMESH_MesherHelper::IsMedium( node, SMDSAbs_Edge ))
- continue;
- const SMDS_EdgePosition* epos =
- static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
- double param = epos->GetUParameter();
- if ( !isForward ) param = -param;
- if ( !params.insert( make_pair( param, node )).second )
- {
- MESSAGE( "BAD NODE ON EDGE POSITIONS" );
- return false;
- }
+ // bind mefisto ID to node
+ mefistoToDS[m] = uvPt->node;
+ // set UV
+ uvslf[m].x = uvPt->u * scalex;
+ uvslf[m].y = uvPt->v * scaley;
+ if ( uvPt->node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX )
+ mOnVertex.push_back( m );
+ m++;
}
- // --- load 2D values into MEFISTO structure,
- // add IDNodes in mefistoToDS map
-
- double f, l, uFirst, u;
- Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
- uFirst = isForward ? f : l;
-
- // vertex node
- gp_Pnt2d p = C2d->Value( uFirst ).XY().Multiplied( scale );
- if ( fixCommonVertexUV( p, V, W, myOuterWire, F, VWMap, aMesh, _quadraticMesh ))
- myNodesOnCommonV.push_back( idFirst );
- mOnVertex.push_back( m );
- uvslf[m].x = p.X();
- uvslf[m].y = p.Y();
- mefistoToDS[m + 1] = idFirst;
- //MESSAGE(" "<<m<<" "<<mefistoToDS[m+1]);
- //MESSAGE("__ f "<<uFirst<<" "<<uvslf[m].x <<" "<<uvslf[m].y);
- m++;
-
- // internal nodes
- map<double, const SMDS_MeshNode*>::iterator u_n = params.begin();
- for ( int i = 0; u_n != params.end(); ++u_n, ++i )
+ int mFirst = mOnVertex.front(), mLast = m - 1;
+ list< int >::iterator mIt = mOnVertex.begin();
+ for ( ; mIt != mOnVertex.end(); ++mIt)
{
- u = isForward ? u_n->first : - u_n->first;
- gp_Pnt2d p = C2d->Value( u ).XY().Multiplied( scale );
- uvslf[m].x = p.X();
- uvslf[m].y = p.Y();
- mefistoToDS[m + 1] = u_n->second;
- //MESSAGE(" "<<m<<" "<<mefistoToDS[m+1]);
- //MESSAGE("__ "<<i<<" "<<param<<" "<<uvslf[m].x <<" "<<uvslf[m].y);
- m++;
+ int m = *mIt;
+ if ( iW && !VWMap.IsEmpty()) { // except outer wire
+ // avoid passing same uv point for a vertex common to 2 wires
+ int vID = mefistoToDS[m]->GetPosition()->GetShapeId();
+ TopoDS_Vertex V = TopoDS::Vertex( myTool->GetMeshDS()->IndexToShape( vID ));
+ if ( fixCommonVertexUV( uvslf[m], V, F, VWMap, *myTool->GetMesh(),
+ scalex, scaley, _quadraticMesh )) {
+ myNodesOnCommonV.push_back( mefistoToDS[m] );
+ continue;
+ }
+ }
+ // prevent failure on overlapped adjacent links,
+ // check only links ending in vertex nodes
+ int mB = m - 1, mA = m + 1; // indices Before and After
+ if ( mB < mFirst ) mB = mLast;
+ if ( mA > mLast ) mA = mFirst;
+ fixOverlappedLinkUV (uvslf[ mB ], uvslf[ m ], uvslf[ mA ]);
}
- } // for wexp
-
- // prevent failure on overlapped adjacent links,
- // check only links ending in vertex nodes
- int mFirst = mOnVertex.front(), mLast = m - 1;
- list< int >::iterator mIt = mOnVertex.begin();
- for ( ; mIt != mOnVertex.end(); ++mIt ) {
- int i = *mIt;
- int iB = i - 1, iA = i + 1; // indices Before and After
- if ( iB < mFirst ) iB = mLast;
- if ( iA > mLast ) iA = mFirst;
- fixOverlappedLinkUV (uvslf[ iB ], uvslf[ i ], uvslf[ iA ]);
}
return true;
*/
//=============================================================================
-void StdMeshers_MEFISTO_2D::ComputeScaleOnFace(SMESH_Mesh & aMesh,
- const TopoDS_Face & aFace, double &scalex, double &scaley)
+void StdMeshers_MEFISTO_2D::ComputeScaleOnFace(SMESH_Mesh & aMesh,
+ const TopoDS_Face & aFace,
+ double & scalex,
+ double & scaley)
{
- //MESSAGE("StdMeshers_MEFISTO_2D::ComputeScaleOnFace");
- TopoDS_Face F = TopoDS::Face(aFace.Oriented(TopAbs_FORWARD));
- TopoDS_Wire W = BRepTools::OuterWire(F);
+ TopoDS_Wire W = BRepTools::OuterWire(aFace);
double xmin = 1.e300; // min & max of face 2D parametric coord.
double xmax = -1.e300;
{
const TopoDS_Edge & E = TopoDS::Edge( wexp.Current() );
double f, l;
- Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
+ Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, aFace, f, l);
if ( C2d.IsNull() ) continue;
double du = (l - f) / double (nbp);
for (int i = 0; i <= nbp; i++)
double xsize = xmax - xmin;
double ysize = ymax - ymin;
- Handle(Geom_Surface) S = BRep_Tool::Surface(F); // 3D surface
+ TopLoc_Location L;
+ Handle(Geom_Surface) S = BRep_Tool::Surface(aFace,L); // 3D surface
double length_x = 0;
double length_y = 0;
*/
//=============================================================================
-void StdMeshers_MEFISTO_2D::StoreResult(SMESH_Mesh & aMesh,
- Z nbst, R2 * uvst, Z nbt, Z * nust,
- const TopoDS_Face & F, bool faceIsForward,
- map<int, const SMDS_MeshNode*>&mefistoToDS,
+void StdMeshers_MEFISTO_2D::StoreResult(Z nbst, R2 * uvst, Z nbt, Z * nust,
+ vector< const SMDS_MeshNode*>&mefistoToDS,
double scalex, double scaley)
{
- SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
- int faceID = meshDS->ShapeToIndex( F );
+ SMESHDS_Mesh * meshDS = myTool->GetMeshDS();
+ int faceID = myTool->GetSubShapeID();
- Z n, m;
- Handle(Geom_Surface) S = BRep_Tool::Surface(F);
+ TopoDS_Face F = TopoDS::Face( myTool->GetSubShape() );
+ Handle(Geom_Surface) S = BRep_Tool::Surface( F );
- for (n = 0; n < nbst; n++)
+ Z n = mefistoToDS.size(); // nb input points
+ mefistoToDS.resize( nbst );
+ for ( ; n < nbst; n++)
{
- if (mefistoToDS.find(n + 1) == mefistoToDS.end())
+ if (!mefistoToDS[n])
{
double u = uvst[n][0] / scalex;
double v = uvst[n][1] / scaley;
meshDS->SetNodeOnFace(node, faceID, u, v);
//MESSAGE(P.X()<<" "<<P.Y()<<" "<<P.Z());
- mefistoToDS[n + 1] = node;
+ mefistoToDS[n] = node;
//MESSAGE("NEW: "<<n<<" "<<mefistoToDS[n+1]);
}
}
- m = 0;
+ Z m = 0;
// triangle points must be in trigonometric order if face is Forward
// else they must be put clockwise
- bool triangleIsWellOriented = faceIsForward;
+ bool triangleIsWellOriented = ( F.Orientation() == TopAbs_FORWARD );
for (n = 1; n <= nbt; n++)
{
- const SMDS_MeshNode * n1 = mefistoToDS[ nust[m++] ];
- const SMDS_MeshNode * n2 = mefistoToDS[ nust[m++] ];
- const SMDS_MeshNode * n3 = mefistoToDS[ nust[m++] ];
+ const SMDS_MeshNode * n1 = mefistoToDS[ nust[m++] - 1 ];
+ const SMDS_MeshNode * n2 = mefistoToDS[ nust[m++] - 1 ];
+ const SMDS_MeshNode * n3 = mefistoToDS[ nust[m++] - 1 ];
SMDS_MeshElement * elt;
if (triangleIsWellOriented)
- //elt = meshDS->AddFace(n1, n2, n3);
elt = myTool->AddFace(n1, n2, n3);
else
- //elt = meshDS->AddFace(n1, n3, n2);
elt = myTool->AddFace(n1, n3, n2);
meshDS->SetMeshElementOnShape(elt, faceID);
}
}
}
-
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-double StdMeshers_MEFISTO_2D::ComputeEdgeElementLength(SMESH_Mesh & aMesh,
- const TopoDS_Shape & aShape)
-{
- //MESSAGE("StdMeshers_MEFISTO_2D::ComputeEdgeElementLength");
- // **** a mettre dans SMESH_2D_Algo ?
-
- //const TopoDS_Face & FF = TopoDS::Face(aShape);
- //bool faceIsForward = (FF.Orientation() == TopAbs_FORWARD);
- //TopoDS_Face F = TopoDS::Face(FF.Oriented(TopAbs_FORWARD));
-
- double meanElementLength = 100;
- double wireLength = 0;
- int wireElementsNumber = 0;
- for (TopExp_Explorer expe(aShape, TopAbs_EDGE); expe.More(); expe.Next())
- {
- const TopoDS_Edge & E = TopoDS::Edge(expe.Current());
- int nb = aMesh.GetSubMesh(E)->GetSubMeshDS()->NbNodes();
- double length = EdgeLength(E);
- wireLength += length;
- wireElementsNumber += nb;
- }
- if (wireElementsNumber)
- meanElementLength = wireLength / wireElementsNumber;
- //SCRUTE(meanElementLength);
- return meanElementLength;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-ostream & StdMeshers_MEFISTO_2D::SaveTo(ostream & save)
-{
- return save;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-istream & StdMeshers_MEFISTO_2D::LoadFrom(istream & load)
-{
- return load;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-ostream & operator <<(ostream & save, StdMeshers_MEFISTO_2D & hyp)
-{
- return hyp.SaveTo( save );
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-istream & operator >>(istream & load, StdMeshers_MEFISTO_2D & hyp)
-{
- return hyp.LoadFrom( load );
}
// Module : SMESH
// $Header$
-using namespace std;
#include "StdMeshers_Quadrangle_2D.hxx"
+
+#include "StdMeshers_FaceSide.hxx"
+
#include "SMESH_Gen.hxx"
#include "SMESH_Mesh.hxx"
#include "SMESH_subMesh.hxx"
+#include "SMESH_MesherHelper.hxx"
+#include "SMESH_Block.hxx"
#include "SMDS_MeshElement.hxx"
#include "SMDS_MeshNode.hxx"
#include "SMDS_EdgePosition.hxx"
#include "SMDS_FacePosition.hxx"
+#include <BRepAdaptor_Curve.hxx>
#include <BRep_Tool.hxx>
+#include <BRepLProp.hxx>
#include <BRepTools.hxx>
#include <BRepTools_WireExplorer.hxx>
-
#include <Geom_Surface.hxx>
#include <Geom_Curve.hxx>
#include <Geom2d_Curve.hxx>
#include <GeomAdaptor_Curve.hxx>
#include <GCPnts_UniformAbscissa.hxx>
#include <TopExp.hxx>
-
#include <Precision.hxx>
#include <gp_Pnt2d.hxx>
#include <TColStd_ListIteratorOfListOfInteger.hxx>
#include <TColStd_SequenceOfReal.hxx>
#include <TColgp_SequenceOfXY.hxx>
+#include <NCollection_DefineArray2.hxx>
#include "utilities.h"
#include "Utils_ExceptHandlers.hxx"
#ifndef StdMeshers_Array2OfNode_HeaderFile
#define StdMeshers_Array2OfNode_HeaderFile
typedef const SMDS_MeshNode* SMDS_MeshNodePtr;
-#include <NCollection_DefineArray2.hxx>
DEFINE_BASECOLLECTION (StdMeshers_BaseCollectionNodePtr, SMDS_MeshNodePtr)
DEFINE_ARRAY2(StdMeshers_Array2OfNode,
StdMeshers_BaseCollectionNodePtr, SMDS_MeshNodePtr)
#endif
+using namespace std;
+
+typedef gp_XY gp_UV;
//=============================================================================
/*!
StdMeshers_Quadrangle_2D::~StdMeshers_Quadrangle_2D()
{
MESSAGE("StdMeshers_Quadrangle_2D::~StdMeshers_Quadrangle_2D");
- if ( myTool )
- delete myTool;
}
//=============================================================================
const TopoDS_Shape& aShape) throw (SALOME_Exception)
{
Unexpect aCatch(SalomeException);
- //MESSAGE("StdMeshers_Quadrangle_2D::Compute");
+
SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
aMesh.GetSubMesh(aShape);
- if ( !myTool )
- myTool = new SMESH_MesherHelper(aMesh);
- _quadraticMesh = myTool->IsQuadraticSubMesh(aShape);
+ myTool = new SMESH_MesherHelper(aMesh);
+ std::auto_ptr<SMESH_MesherHelper> helperDeleter( myTool );// to delete helper at exit from Compute()
- //FaceQuadStruct *quad = CheckAnd2Dcompute(aMesh, aShape);
- FaceQuadStruct* quad = CheckNbEdges(aMesh, aShape);
+ _quadraticMesh = myTool->IsQuadraticSubMesh(aShape);
- if (!quad) {
- delete myTool; myTool = 0;
+ FaceQuadStruct *quad = CheckNbEdges( aMesh, aShape );
+ std::auto_ptr<FaceQuadStruct> quadDeleter( quad ); // to delete quad at exit from Compute()
+ if (!quad)
return false;
- }
if(myQuadranglePreference) {
- int n1 = quad->nbPts[0];
- int n2 = quad->nbPts[1];
- int n3 = quad->nbPts[2];
- int n4 = quad->nbPts[3];
+ int n1 = quad->side[0]->NbPoints();
+ int n2 = quad->side[1]->NbPoints();
+ int n3 = quad->side[2]->NbPoints();
+ int n4 = quad->side[3]->NbPoints();
int nfull = n1+n2+n3+n4;
int ntmp = nfull/2;
ntmp = ntmp*2;
if( nfull==ntmp && ( (n1!=n3) || (n2!=n4) ) ) {
// special path for using only quandrangle faces
bool ok = ComputeQuadPref(aMesh, aShape, quad);
- delete myTool; myTool = 0;
return ok;
}
}
// set normalized grid on unit square in parametric domain
- SetNormalizedGrid(aMesh, aShape, quad);
- if (!quad) {
- delete myTool; myTool = 0;
+
+ if (!SetNormalizedGrid(aMesh, aShape, quad))
return false;
- }
// --- compute 3D values on points, store points & quadrangles
- int nbdown = quad->nbPts[0];
- int nbup = quad->nbPts[2];
+ int nbdown = quad->side[0]->NbPoints();
+ int nbup = quad->side[2]->NbPoints();
- int nbright = quad->nbPts[1];
- int nbleft = quad->nbPts[3];
+ int nbright = quad->side[1]->NbPoints();
+ int nbleft = quad->side[3]->NbPoints();
int nbhoriz = Min(nbdown, nbup);
int nbvertic = Min(nbright, nbleft);
b = quad->uv_grid[j * nbhoriz + i + 1].node;
c = quad->uv_grid[(j + 1) * nbhoriz + i + 1].node;
d = quad->uv_grid[(j + 1) * nbhoriz + i].node;
- //SMDS_MeshFace * face = meshDS->AddFace(a, b, c, d);
SMDS_MeshFace* face = myTool->AddFace(a, b, c, d);
meshDS->SetMeshElementOnShape(face, geomFaceID);
}
}
-
- UVPtStruct *uv_e0 = quad->uv_edges[0];
- UVPtStruct *uv_e1 = quad->uv_edges[1];
- UVPtStruct *uv_e2 = quad->uv_edges[2];
- UVPtStruct *uv_e3 = quad->uv_edges[3];
+
+ const vector<UVPtStruct>& uv_e0 = quad->side[0]->GetUVPtStruct(true,0 );
+ const vector<UVPtStruct>& uv_e1 = quad->side[1]->GetUVPtStruct(false,1);
+ const vector<UVPtStruct>& uv_e2 = quad->side[2]->GetUVPtStruct(true,1 );
+ const vector<UVPtStruct>& uv_e3 = quad->side[3]->GetUVPtStruct(false,0);
double eps = Precision::Confusion();
}
}
- QuadDelete(quad);
- delete myTool; myTool = 0;
-
bool isOk = true;
return isOk;
}
-
//=============================================================================
/*!
*
*/
//=============================================================================
-FaceQuadStruct* StdMeshers_Quadrangle_2D::CheckNbEdges(SMESH_Mesh & aMesh,
+FaceQuadStruct* StdMeshers_Quadrangle_2D::CheckNbEdges(SMESH_Mesh & aMesh,
const TopoDS_Shape & aShape)
throw(SALOME_Exception)
{
const TopoDS_Face & F = TopoDS::Face(aShape);
// verify 1 wire only, with 4 edges
-
- if (NumberOfWires(F) != 1) {
+ TopoDS_Vertex V;
+ list< TopoDS_Edge > edges;
+ list< int > nbEdgesInWire;
+ int nbWire = SMESH_Block::GetOrderedEdges (F, V, edges, nbEdgesInWire);
+ if (nbWire != 1) {
INFOS("only 1 wire by face (quadrangles)");
return 0;
}
- const TopoDS_Wire& W = BRepTools::OuterWire(F);
- BRepTools_WireExplorer wexp (W, F);
-
FaceQuadStruct* quad = new FaceQuadStruct;
- for (int i = 0; i < 4; i++)
- quad->uv_edges[i] = 0;
quad->uv_grid = 0;
- int nbEdges = 0;
- for (wexp.Init(W, F); wexp.More(); wexp.Next()) {
- const TopoDS_Edge& E = wexp.Current();
- int nb = aMesh.GetSubMesh(E)->GetSubMeshDS()->NbNodes();
- if (nbEdges < 4) {
- quad->edge[nbEdges] = E;
- if(!_quadraticMesh) {
- quad->nbPts[nbEdges] = nb + 2; // internal points + 2 extrema
- }
- else {
- int tmp = nb/2;
- quad->nbPts[nbEdges] = tmp + 2; // internal not medium points + 2 extrema
+ int nbSides = 0;
+ list< TopoDS_Edge >::iterator edgeIt = edges.begin();
+ if ( nbEdgesInWire.front() == 4 ) {
+ for ( ; edgeIt != edges.end(); ++edgeIt, nbSides++ )
+ quad->side[nbSides] = new StdMeshers_FaceSide(F,*edgeIt,&aMesh,nbSides<TOP_SIDE);
+ }
+ else {
+ list< TopoDS_Edge > sideEdges;
+ while ( edgeIt != edges.end()) {
+ sideEdges.clear();
+ sideEdges.push_back( *edgeIt++ );
+ bool sameSide = true;
+ while ( edgeIt != edges.end() && sameSide ) {
+ GeomAbs_Shape cont = SMESH_Algo::Continuity( sideEdges.back(), *edgeIt );
+ sameSide = ( cont >= GeomAbs_C1 );
+ if ( sameSide )
+ sideEdges.push_back( *edgeIt++ );
}
+ quad->side[nbSides] = new StdMeshers_FaceSide(F,sideEdges,&aMesh,nbSides<TOP_SIDE);
+ ++nbSides;
}
- nbEdges++;
}
-
- if (nbEdges != 4) {
+ if (nbSides != 4) {
INFOS("face must have 4 edges /quadrangles");
- QuadDelete(quad);
- return 0;
+ delete quad;
+ quad = 0;
}
return quad;
//=============================================================================
FaceQuadStruct *StdMeshers_Quadrangle_2D::CheckAnd2Dcompute
- (SMESH_Mesh & aMesh,
+ (SMESH_Mesh & aMesh,
const TopoDS_Shape & aShape,
- const bool CreateQuadratic) throw(SALOME_Exception)
+ const bool CreateQuadratic) throw(SALOME_Exception)
{
Unexpect aCatch(SalomeException);
*/
//=============================================================================
-void StdMeshers_Quadrangle_2D::QuadDelete (FaceQuadStruct * quad)
+faceQuadStruct::~faceQuadStruct()
{
- //MESSAGE("StdMeshers_Quadrangle_2D::QuadDelete");
- if (quad)
+ for (int i = 0; i < 4; i++) {
+ if (side[i]) delete side[i];
+ //if (uv_edges[i]) delete [] uv_edges[i];
+ }
+ if (uv_grid) delete [] uv_grid;
+}
+
+namespace {
+ inline const vector<UVPtStruct>& GetUVPtStructIn(FaceQuadStruct* quad, int i, int nbSeg)
{
- for (int i = 0; i < 4; i++)
- {
- if (quad->uv_edges[i])
- delete [] quad->uv_edges[i];
- quad->edge[i].Nullify();
- }
- if (quad->uv_grid)
- delete [] quad->uv_grid;
- delete quad;
+ bool isXConst = ( i == BOTTOM_SIDE || i == TOP_SIDE );
+ double constValue = ( i == BOTTOM_SIDE || i == LEFT_SIDE ) ? 0 : 1;
+ return
+ quad->isEdgeOut[i] ?
+ quad->side[i]->SimulateUVPtStruct(nbSeg,isXConst,constValue) :
+ quad->side[i]->GetUVPtStruct(isXConst,constValue);
}
}
*/
//=============================================================================
-void StdMeshers_Quadrangle_2D::SetNormalizedGrid (SMESH_Mesh & aMesh,
+bool StdMeshers_Quadrangle_2D::SetNormalizedGrid (SMESH_Mesh & aMesh,
const TopoDS_Shape& aShape,
FaceQuadStruct* & quad) throw (SALOME_Exception)
{
// transport - projection sur le carré unité
// MESSAGE("StdMeshers_Quadrangle_2D::SetNormalizedGrid");
- const TopoDS_Face& F = TopoDS::Face(aShape);
+// const TopoDS_Face& F = TopoDS::Face(aShape);
// 1 --- find orientation of the 4 edges, by test on extrema
// =down
//
- Handle(Geom2d_Curve) c2d[4];
- gp_Pnt2d pf[4];
- gp_Pnt2d pl[4];
- for (int i = 0; i < 4; i++)
- {
- c2d[i] = BRep_Tool::CurveOnSurface(quad->edge[i], F,
- quad->first[i], quad->last[i]);
- pf[i] = c2d[i]->Value(quad->first[i]);
- pl[i] = c2d[i]->Value(quad->last[i]);
- quad->isEdgeForward[i] = false;
- }
+ // 3 --- 2D normalized values on unit square [0..1][0..1]
- double l0f1 = pl[0].SquareDistance(pf[1]);
- double l0l1 = pl[0].SquareDistance(pl[1]);
- double f0f1 = pf[0].SquareDistance(pf[1]);
- double f0l1 = pf[0].SquareDistance(pl[1]);
- if ( Min( l0f1, l0l1 ) < Min ( f0f1, f0l1 ))
- {
- quad->isEdgeForward[0] = true;
- } else {
- double tmp = quad->first[0];
- quad->first[0] = quad->last[0];
- quad->last[0] = tmp;
- pf[0] = c2d[0]->Value(quad->first[0]);
- pl[0] = c2d[0]->Value(quad->last[0]);
- }
- for (int i = 1; i < 4; i++)
- {
- l0l1 = pl[i - 1].SquareDistance(pl[i]);
- l0f1 = pl[i - 1].SquareDistance(pf[i]);
- quad->isEdgeForward[i] = ( l0f1 < l0l1 );
- if (!quad->isEdgeForward[i])
- {
- double tmp = quad->first[i];
- quad->first[i] = quad->last[i];
- quad->last[i] = tmp;
- pf[i] = c2d[i]->Value(quad->first[i]);
- pl[i] = c2d[i]->Value(quad->last[i]);
- }
- }
+ int nbhoriz = Min(quad->side[0]->NbPoints(), quad->side[2]->NbPoints());
+ int nbvertic = Min(quad->side[1]->NbPoints(), quad->side[3]->NbPoints());
- // 2 --- load 2d edge points (u,v) with orientation and value on unit square
+ quad->isEdgeOut[0] = (quad->side[0]->NbPoints() > quad->side[2]->NbPoints());
+ quad->isEdgeOut[1] = (quad->side[1]->NbPoints() > quad->side[3]->NbPoints());
+ quad->isEdgeOut[2] = (quad->side[2]->NbPoints() > quad->side[0]->NbPoints());
+ quad->isEdgeOut[3] = (quad->side[3]->NbPoints() > quad->side[1]->NbPoints());
- bool loadOk = true;
- for (int i = 0; i < 2; i++)
- {
- quad->uv_edges[i] = LoadEdgePoints(aMesh, F, quad->edge[i],
- quad->first[i], quad->last[i]);
- if (!quad->uv_edges[i]) loadOk = false;
- }
+ UVPtStruct *uv_grid = quad->uv_grid = new UVPtStruct[nbvertic * nbhoriz];
- for (int i = 2; i < 4; i++)
- {
- quad->uv_edges[i] = LoadEdgePoints(aMesh, F, quad->edge[i],
- quad->last[i], quad->first[i]);
- if (!quad->uv_edges[i]) loadOk = false;
- }
+ const vector<UVPtStruct>& uv_e0 = GetUVPtStructIn( quad, 0, nbhoriz - 1 );
+ const vector<UVPtStruct>& uv_e1 = GetUVPtStructIn( quad, 1, nbvertic - 1 );
+ const vector<UVPtStruct>& uv_e2 = GetUVPtStructIn( quad, 2, nbhoriz - 1 );
+ const vector<UVPtStruct>& uv_e3 = GetUVPtStructIn( quad, 3, nbvertic - 1 );
- if (!loadOk)
- {
- INFOS("StdMeshers_Quadrangle_2D::SetNormalizedGrid - LoadEdgePoints failed");
- QuadDelete( quad );
- quad = 0;
- return;
+ if ( uv_e0.empty() || uv_e1.empty() || uv_e2.empty() || uv_e3.empty() ) {
+ MESSAGE("Nodes from edges not loaded");
+ return false;
}
- // 3 --- 2D normalized values on unit square [0..1][0..1]
-
- int nbhoriz = Min(quad->nbPts[0], quad->nbPts[2]);
- int nbvertic = Min(quad->nbPts[1], quad->nbPts[3]);
-
- quad->isEdgeOut[0] = (quad->nbPts[0] > quad->nbPts[2]);
- quad->isEdgeOut[1] = (quad->nbPts[1] > quad->nbPts[3]);
- quad->isEdgeOut[2] = (quad->nbPts[2] > quad->nbPts[0]);
- quad->isEdgeOut[3] = (quad->nbPts[3] > quad->nbPts[1]);
-
- quad->uv_grid = new UVPtStruct[nbvertic * nbhoriz];
-
- UVPtStruct *uv_grid = quad->uv_grid;
- UVPtStruct *uv_e0 = quad->uv_edges[0];
- UVPtStruct *uv_e1 = quad->uv_edges[1];
- UVPtStruct *uv_e2 = quad->uv_edges[2];
- UVPtStruct *uv_e3 = quad->uv_edges[3];
// nodes Id on "in" edges
if (! quad->isEdgeOut[0]) {
}
}
- // falsificate "out" edges
- if (quad->isEdgeOut[0]) // down
- uv_e0 = MakeEdgePoints
- (aMesh, F, quad->edge[0], quad->first[0], quad->last[0], nbhoriz - 1);
- else if (quad->isEdgeOut[2]) // up
- uv_e2 = MakeEdgePoints
- (aMesh, F, quad->edge[2], quad->last[2], quad->first[2], nbhoriz - 1);
-
- if (quad->isEdgeOut[1]) // right
- uv_e1 = MakeEdgePoints
- (aMesh, F, quad->edge[1], quad->first[1], quad->last[1], nbvertic - 1);
- else if (quad->isEdgeOut[3]) // left
- uv_e3 = MakeEdgePoints
- (aMesh, F, quad->edge[3], quad->last[3], quad->first[3], nbvertic - 1);
-
// normalized 2d values on grid
for (int i = 0; i < nbhoriz; i++)
{
}
// 4 --- projection on 2d domain (u,v)
- gp_Pnt2d a0 = pf[0];
- gp_Pnt2d a1 = pf[1];
- gp_Pnt2d a2 = pf[2];
- gp_Pnt2d a3 = pf[3];
+ gp_UV a0( uv_e0.front().u, uv_e0.front().v );
+ gp_UV a1( uv_e0.back().u, uv_e0.back().v );
+ gp_UV a2( uv_e2.back().u, uv_e2.back().v );
+ gp_UV a3( uv_e2.front().u, uv_e2.front().v );
for (int i = 0; i < nbhoriz; i++)
{
int ij = j * nbhoriz + i;
double x = uv_grid[ij].x;
double y = uv_grid[ij].y;
- double param_0 = uv_e0[0].param + x * (uv_e0[nbhoriz - 1].param - uv_e0[0].param); // sud
- double param_2 = uv_e2[0].param + x * (uv_e2[nbhoriz - 1].param - uv_e2[0].param); // nord
- double param_1 = uv_e1[0].param + y * (uv_e1[nbvertic - 1].param - uv_e1[0].param); // est
- double param_3 = uv_e3[0].param + y * (uv_e3[nbvertic - 1].param - uv_e3[0].param); // ouest
+ double param_0 = uv_e0[0].normParam + x * (uv_e0.back().normParam - uv_e0[0].normParam); // sud
+ double param_2 = uv_e2[0].normParam + x * (uv_e2.back().normParam - uv_e2[0].normParam); // nord
+ double param_1 = uv_e1[0].normParam + y * (uv_e1.back().normParam - uv_e1[0].normParam); // est
+ double param_3 = uv_e3[0].normParam + y * (uv_e3.back().normParam - uv_e3[0].normParam); // ouest
//MESSAGE("params "<<param_0<<" "<<param_1<<" "<<param_2<<" "<<param_3);
- gp_Pnt2d p0 = c2d[0]->Value(param_0);
- gp_Pnt2d p1 = c2d[1]->Value(param_1);
- gp_Pnt2d p2 = c2d[2]->Value(param_2);
- gp_Pnt2d p3 = c2d[3]->Value(param_3);
+ gp_UV p0 = quad->side[0]->Value2d(param_0).XY();
+ gp_UV p1 = quad->side[1]->Value2d(param_1).XY();
+ gp_UV p2 = quad->side[2]->Value2d(param_2).XY();
+ gp_UV p3 = quad->side[3]->Value2d(param_3).XY();
- double u = (1 - y) * p0.X() + x * p1.X() + y * p2.X() + (1 - x) * p3.X();
- double v = (1 - y) * p0.Y() + x * p1.Y() + y * p2.Y() + (1 - x) * p3.Y();
+ gp_UV uv = (1 - y) * p0 + x * p1 + y * p2 + (1 - x) * p3;
+ uv -= (1 - x) * (1 - y) * a0 + x * (1 - y) * a1 + x * y * a2 + (1 - x) * y * a3;
- u -= (1 - x) * (1 - y) * a0.X() + x * (1 - y) * a1.X() +
- x * y * a2.X() + (1 - x) * y * a3.X();
- v -= (1 - x) * (1 - y) * a0.Y() + x * (1 - y) * a1.Y() +
- x * y * a2.Y() + (1 - x) * y * a3.Y();
-
- uv_grid[ij].u = u;
- uv_grid[ij].v = v;
+ uv_grid[ij].u = uv.X();
+ uv_grid[ij].v = uv.Y();
}
}
+ return true;
}
-
//=======================================================================
//function : ShiftQuad
//purpose : auxilary function for ComputeQuadPref
//=======================================================================
-static void ShiftQuad(FaceQuadStruct* quad, const int num, bool WisF)
+
+static void ShiftQuad(FaceQuadStruct* quad, const int num, bool)
{
- if(num>3) return;
- int i;
- for(i=1; i<=num; i++) {
- int nbPts3 = quad->nbPts[0];
- quad->nbPts[0] = quad->nbPts[1];
- quad->nbPts[1] = quad->nbPts[2];
- quad->nbPts[2] = quad->nbPts[3];
- quad->nbPts[3] = nbPts3;
- TopoDS_Edge edge3 = quad->edge[0];
- quad->edge[0] = quad->edge[1];
- quad->edge[1] = quad->edge[2];
- quad->edge[2] = quad->edge[3];
- quad->edge[3] = edge3;
- double first3 = quad->first[0];
- quad->first[0] = quad->first[1];
- quad->first[1] = quad->first[2];
- quad->first[2] = quad->first[3];
- quad->first[3] = first3;
- double last3 = quad->last[0];
- quad->last[0] = quad->last[1];
- quad->last[1] = quad->last[2];
- quad->last[2] = quad->last[3];
- quad->last[3] = last3;
- bool isEdgeForward3 = quad->isEdgeForward[0];
- quad->isEdgeForward[0] = quad->isEdgeForward[1];
- quad->isEdgeForward[1] = quad->isEdgeForward[2];
- quad->isEdgeForward[2] = quad->isEdgeForward[3];
- quad->isEdgeForward[3] = isEdgeForward3;
- bool isEdgeOut3 = quad->isEdgeOut[0];
- quad->isEdgeOut[0] = quad->isEdgeOut[1];
- quad->isEdgeOut[1] = quad->isEdgeOut[2];
- quad->isEdgeOut[2] = quad->isEdgeOut[3];
- quad->isEdgeOut[3] = isEdgeOut3;
- UVPtStruct* uv_edges3 = quad->uv_edges[0];
- quad->uv_edges[0] = quad->uv_edges[1];
- quad->uv_edges[1] = quad->uv_edges[2];
- quad->uv_edges[2] = quad->uv_edges[3];
- quad->uv_edges[3] = uv_edges3;
- }
- if(!WisF) {
- // replacement left and right edges
- int nbPts3 = quad->nbPts[1];
- quad->nbPts[1] = quad->nbPts[3];
- quad->nbPts[3] = nbPts3;
- TopoDS_Edge edge3 = quad->edge[1];
- quad->edge[1] = quad->edge[3];
- quad->edge[3] = edge3;
- double first3 = quad->first[1];
- quad->first[1] = quad->first[3];
- quad->first[3] = first3;
- double last3 = quad->last[1];
- quad->last[1] = quad->last[2];
- quad->last[3] = last3;
- bool isEdgeForward3 = quad->isEdgeForward[1];
- quad->isEdgeForward[1] = quad->isEdgeForward[3];
- quad->isEdgeForward[3] = isEdgeForward3;
- bool isEdgeOut3 = quad->isEdgeOut[1];
- quad->isEdgeOut[1] = quad->isEdgeOut[3];
- quad->isEdgeOut[3] = isEdgeOut3;
- UVPtStruct* uv_edges3 = quad->uv_edges[1];
- quad->uv_edges[1] = quad->uv_edges[3];
- quad->uv_edges[3] = uv_edges3;
+ StdMeshers_FaceSide* side[4] = { quad->side[0], quad->side[1], quad->side[2], quad->side[3] };
+ for (int i = BOTTOM_SIDE; i < NB_SIDES; ++i ) {
+ int id = ( i + num ) % NB_SIDES;
+ bool wasForward = ( i < TOP_SIDE );
+ bool newForward = ( id < TOP_SIDE );
+ if ( wasForward != newForward )
+ side[ i ]->Reverse();
+ quad->side[ id ] = side[ i ];
}
}
-
//=======================================================================
//function : CalcUV
//purpose : auxilary function for ComputeQuadPref
//=======================================================================
-static gp_XY CalcUV(double x0, double x1, double y0, double y1,
+
+static gp_UV CalcUV(double x0, double x1, double y0, double y1,
FaceQuadStruct* quad,
- const gp_Pnt2d& a0, const gp_Pnt2d& a1,
- const gp_Pnt2d& a2, const gp_Pnt2d& a3,
- const Handle(Geom2d_Curve)& c2db,
- const Handle(Geom2d_Curve)& c2dr,
- const Handle(Geom2d_Curve)& c2dt,
- const Handle(Geom2d_Curve)& c2dl)
+ const gp_UV& a0, const gp_UV& a1,
+ const gp_UV& a2, const gp_UV& a3)
{
- int nb = quad->nbPts[0];
- int nr = quad->nbPts[1];
- int nt = quad->nbPts[2];
- int nl = quad->nbPts[3];
-
- UVPtStruct* uv_eb = quad->uv_edges[0];
- UVPtStruct* uv_er = quad->uv_edges[1];
- UVPtStruct* uv_et = quad->uv_edges[2];
- UVPtStruct* uv_el = quad->uv_edges[3];
+ const vector<UVPtStruct>& uv_eb = quad->side[0]->GetUVPtStruct(true,0 );
+ const vector<UVPtStruct>& uv_er = quad->side[1]->GetUVPtStruct(false,1);
+ const vector<UVPtStruct>& uv_et = quad->side[2]->GetUVPtStruct(true,1 );
+ const vector<UVPtStruct>& uv_el = quad->side[3]->GetUVPtStruct(false,0);
double x = (x0 + y0 * (x1 - x0)) / (1 - (y1 - y0) * (x1 - x0));
double y = y0 + x * (y1 - y0);
- double param_b = uv_eb[0].param + x * (uv_eb[nb-1].param - uv_eb[0].param);
- double param_t = uv_et[0].param + x * (uv_et[nt-1].param - uv_et[0].param);
- double param_r = uv_er[0].param + y * (uv_er[nr-1].param - uv_er[0].param);
- double param_l = uv_el[0].param + y * (uv_el[nl-1].param - uv_el[0].param);
+ double param_b = uv_eb[0].normParam + x * (uv_eb.back().normParam - uv_eb[0].normParam);
+ double param_t = uv_et[0].normParam + x * (uv_et.back().normParam - uv_et[0].normParam);
+ double param_r = uv_er[0].normParam + y * (uv_er.back().normParam - uv_er[0].normParam);
+ double param_l = uv_el[0].normParam + y * (uv_el.back().normParam - uv_el[0].normParam);
- gp_Pnt2d p0 = c2db->Value(param_b);
- gp_Pnt2d p1 = c2dr->Value(param_r);
- gp_Pnt2d p2 = c2dt->Value(param_t);
- gp_Pnt2d p3 = c2dl->Value(param_l);
+ gp_UV p0 = quad->side[BOTTOM_SIDE]->Value2d(param_b).XY();
+ gp_UV p1 = quad->side[RIGHT_SIDE ]->Value2d(param_r).XY();
+ gp_UV p2 = quad->side[TOP_SIDE ]->Value2d(param_t).XY();
+ gp_UV p3 = quad->side[LEFT_SIDE ]->Value2d(param_l).XY();
- double u = (1 - y) * p0.X() + x * p1.X() + y * p2.X() + (1 - x) * p3.X();
- double v = (1 - y) * p0.Y() + x * p1.Y() + y * p2.Y() + (1 - x) * p3.Y();
+ gp_UV uv = p0 * (1 - y) + p1 * x + p2 * y + p3 * (1 - x);
- u -= (1 - x) * (1 - y) * a0.X() + x * (1 - y) * a1.X() +
- x * y * a2.X() + (1 - x) * y * a3.X();
- v -= (1 - x) * (1 - y) * a0.Y() + x * (1 - y) * a1.Y() +
- x * y * a2.Y() + (1 - x) * y * a3.Y();
+ uv -= (1 - x) * (1 - y) * a0 + x * (1 - y) * a1 + x * y * a2 + (1 - x) * y * a3;
//cout<<"x0="<<x0<<" x1="<<x1<<" y0="<<y0<<" y1="<<y1<<endl;
//cout<<"x="<<x<<" y="<<y<<endl;
//cout<<"param_b="<<param_b<<" param_t="<<param_t<<" param_r="<<param_r<<" param_l="<<param_l<<endl;
//cout<<"u="<<u<<" v="<<v<<endl;
- return gp_XY(u,v);
+ return uv;
}
-
//=======================================================================
//function : ComputeQuadPref
//purpose :
* Special function for creation only quandrangle faces
*/
bool StdMeshers_Quadrangle_2D::ComputeQuadPref
- (SMESH_Mesh & aMesh,
+ (SMESH_Mesh & aMesh,
const TopoDS_Shape& aShape,
- FaceQuadStruct* quad) throw (SALOME_Exception)
+ FaceQuadStruct* quad) throw (SALOME_Exception)
{
Unexpect aCatch(SalomeException);
if(!FisF) WisF = !WisF;
int i,j,geomFaceID = meshDS->ShapeToIndex( F );
- int nb = quad->nbPts[0];
- int nr = quad->nbPts[1];
- int nt = quad->nbPts[2];
- int nl = quad->nbPts[3];
+ int nb = quad->side[0]->NbPoints();
+ int nr = quad->side[1]->NbPoints();
+ int nt = quad->side[2]->NbPoints();
+ int nl = quad->side[3]->NbPoints();
int dh = abs(nb-nt);
int dv = abs(nr-nl);
}
else {
if( nr>nl ) {
- // we have to shift quad on 3
- ShiftQuad(quad,3,WisF);
- }
- else {
// we have to shift quad on 1
ShiftQuad(quad,1,WisF);
}
+ else {
+ // we have to shift quad on 3
+ ShiftQuad(quad,3,WisF);
+ }
}
- nb = quad->nbPts[0];
- nr = quad->nbPts[1];
- nt = quad->nbPts[2];
- nl = quad->nbPts[3];
+ nb = quad->side[0]->NbPoints();
+ nr = quad->side[1]->NbPoints();
+ nt = quad->side[2]->NbPoints();
+ nl = quad->side[3]->NbPoints();
dh = abs(nb-nt);
dv = abs(nr-nl);
int nbh = Max(nb,nt);
nbh = nbh + addh;
}
- Handle(Geom2d_Curve) c2d[4];
- for(i=0; i<4; i++) {
- c2d[i] = BRep_Tool::CurveOnSurface(quad->edge[i], F,
- quad->first[i], quad->last[i]);
- }
-
- bool loadOk = true;
- for(i=0; i<2; i++) {
- quad->uv_edges[i] = LoadEdgePoints2(aMesh, F, quad->edge[i], false);
- if(!quad->uv_edges[i]) loadOk = false;
- }
- for(i=2; i<4; i++) {
- quad->uv_edges[i] = LoadEdgePoints2(aMesh, F, quad->edge[i], true);
- if (!quad->uv_edges[i]) loadOk = false;
- }
- if (!loadOk) {
- INFOS("StdMeshers_Quadrangle_2D::ComputeQuadPref - LoadEdgePoints failed");
- QuadDelete( quad );
- quad = 0;
- return false;
- }
-
- UVPtStruct* uv_eb = quad->uv_edges[0];
- UVPtStruct* uv_er = quad->uv_edges[1];
- UVPtStruct* uv_et = quad->uv_edges[2];
- UVPtStruct* uv_el = quad->uv_edges[3];
+ const vector<UVPtStruct>& uv_eb = quad->side[0]->GetUVPtStruct(true,0 );
+ const vector<UVPtStruct>& uv_er = quad->side[1]->GetUVPtStruct(false,1);
+ const vector<UVPtStruct>& uv_et = quad->side[2]->GetUVPtStruct(true,1 );
+ const vector<UVPtStruct>& uv_el = quad->side[3]->GetUVPtStruct(false,0);
// arrays for normalized params
//cout<<"Dump B:"<<endl;
TColStd_SequenceOfReal npb, npr, npt, npl;
for(i=0; i<nb; i++) {
npb.Append(uv_eb[i].normParam);
- //cout<<"i="<<i<<" par="<<uv_eb[i].param<<" npar="<<uv_eb[i].normParam;
+ //cout<<"i="<<i<<" par="<<uv_eb[i].normParam<<" npar="<<uv_eb[i].normParam;
//const SMDS_MeshNode* N = uv_eb[i].node;
//cout<<" node("<<N->X()<<","<<N->Y()<<","<<N->Z()<<")"<<endl;
}
npl.Append(uv_el[i].normParam);
}
- // we have to add few values of params to right and left
- // insert them after first param
+ // add some params to right and left after the first param
// insert to right
int dr = nbv - nr;
double dpr = (npr.Value(2) - npr.Value(1))/(dr+1);
//}
//cout<<endl;
- gp_Pnt2d a[4];
- c2d[0]->D0(uv_eb[0].param,a[0]);
- c2d[0]->D0(uv_eb[nb-1].param,a[1]);
- c2d[2]->D0(uv_et[nt-1].param,a[2]);
- c2d[2]->D0(uv_et[0].param,a[3]);
- //cout<<" a[0]("<<a[0].X()<<","<<a[0].Y()<<")"<<" a[1]("<<a[1].X()<<","<<a[1].Y()<<")"
- // <<" a[2]("<<a[2].X()<<","<<a[2].Y()<<")"<<" a[3]("<<a[3].X()<<","<<a[3].Y()<<")"<<endl;
+ gp_XY a0( uv_eb.front().u, uv_eb.front().v );
+ gp_XY a1( uv_eb.back().u, uv_eb.back().v );
+ gp_XY a2( uv_et.back().u, uv_et.back().v );
+ gp_XY a3( uv_et.front().u, uv_et.front().v );
+ //cout<<" a0("<<a0.X()<<","<<a0.Y()<<")"<<" a1("<<a1.X()<<","<<a1.Y()<<")"
+ // <<" a2("<<a2.X()<<","<<a2.Y()<<")"<<" a3("<<a3.X()<<","<<a3.Y()<<")"<<endl;
int nnn = Min(nr,nl);
// auxilary sequence of XY for creation nodes
// step1: create faces for left domain
StdMeshers_Array2OfNode NodesL(1,dl+1,1,nl);
// add left nodes
- for(j=1; j<=nl; j++)
+ for(j=1; j<=nl; j++)
NodesL.SetValue(1,j,uv_el[j-1].node);
if(dl>0) {
// add top nodes
// diagonal node
double y0 = npl.Value(i+1);
double y1 = npr.Value(i+1);
- gp_XY UV = CalcUV(x0, x1, y0, y1, quad, a[0], a[1], a[2], a[3],
- c2d[0], c2d[1], c2d[2], c2d[3]);
+ gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
gp_Pnt P = S->Value(UV.X(),UV.Y());
SMDS_MeshNode * N = meshDS->AddNode(P.X(), P.Y(), P.Z());
meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
for(j=2; j<nl; j++) {
double y0 = npl.Value(dl+j);
double y1 = npr.Value(dl+j);
- gp_XY UV = CalcUV(x0, x1, y0, y1, quad, a[0], a[1], a[2], a[3],
- c2d[0], c2d[1], c2d[2], c2d[3]);
+ gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
gp_Pnt P = S->Value(UV.X(),UV.Y());
SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
else {
// fill UVL using c2d
for(i=1; i<npl.Length() && UVL.Length()<nbv-nnn-1; i++) {
- gp_Pnt2d p2d;
- c2d[3]->D0(uv_el[i].param,p2d);
- UVL.Append(p2d.XY());
+ UVL.Append( gp_UV ( uv_el[i].u, uv_el[i].v ));
}
}
// diagonal node
double y0 = npl.Value(i+1);
double y1 = npr.Value(i+1);
- gp_XY UV = CalcUV(x0, x1, y0, y1, quad, a[0], a[1], a[2], a[3],
- c2d[0], c2d[1], c2d[2], c2d[3]);
+ gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
gp_Pnt P = S->Value(UV.X(),UV.Y());
SMDS_MeshNode * N = meshDS->AddNode(P.X(), P.Y(), P.Z());
meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
for(j=2; j<nr; j++) {
double y0 = npl.Value(nbv-j+1);
double y1 = npr.Value(nbv-j+1);
- gp_XY UV = CalcUV(x0, x1, y0, y1, quad, a[0], a[1], a[2], a[3],
- c2d[0], c2d[1], c2d[2], c2d[3]);
+ gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
gp_Pnt P = S->Value(UV.X(),UV.Y());
SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
else {
// fill UVR using c2d
for(i=1; i<npr.Length() && UVR.Length()<nbv-nnn-1; i++) {
- gp_Pnt2d p2d;
- c2d[1]->D0(uv_er[i].param,p2d);
- UVR.Append(p2d.XY());
+ UVR.Append( gp_UV( uv_er[i].u, uv_er[i].v ));
}
}
for(i=dl+2; i<nbh-dr; i++)
NodesC.SetValue(i-dl,nbv,uv_et[i-1].node);
// add bottom nodes (first columns)
- for(i=2; i<nb; i++) {
+ for(i=2; i<nb; i++)
NodesC.SetValue(i,1,uv_eb[i-1].node);
- gp_Pnt2d p2d;
- c2d[0]->D0(uv_eb[i-1].param,p2d);
- }
+
// create and add needed nodes
// add linear layers
for(i=2; i<nb; i++) {
for(j=1; j<nnn; j++) {
double y0 = npl.Value(nbv-nnn+j);
double y1 = npr.Value(nbv-nnn+j);
- gp_XY UV = CalcUV(x0, x1, y0, y1, quad, a[0], a[1], a[2], a[3],
- c2d[0], c2d[1], c2d[2], c2d[3]);
+ gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
gp_Pnt P = S->Value(UV.X(),UV.Y());
SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
}
}
- QuadDelete(quad);
bool isOk = true;
return isOk;
}
-
-//=============================================================================
-/*!
- * LoadEdgePoints2
- */
-//=============================================================================
-UVPtStruct* StdMeshers_Quadrangle_2D::LoadEdgePoints2 (SMESH_Mesh & aMesh,
- const TopoDS_Face& F,
- const TopoDS_Edge& E,
- bool IsReverse)
-{
- //MESSAGE("StdMeshers_Quadrangle_2D::LoadEdgePoints");
- // --- IDNodes of first and last Vertex
- TopoDS_Vertex VFirst, VLast;
- TopExp::Vertices(E, VFirst, VLast); // corresponds to f and l
-
- ASSERT(!VFirst.IsNull());
- SMDS_NodeIteratorPtr lid = aMesh.GetSubMesh(VFirst)->GetSubMeshDS()->GetNodes();
- if (!lid->more()) {
- MESSAGE ( "NO NODE BUILT ON VERTEX" );
- return 0;
- }
- const SMDS_MeshNode* idFirst = lid->next();
-
- ASSERT(!VLast.IsNull());
- lid = aMesh.GetSubMesh(VLast)->GetSubMeshDS()->GetNodes();
- if (!lid->more()) {
- MESSAGE ( "NO NODE BUILT ON VERTEX" );
- return 0;
- }
- const SMDS_MeshNode* idLast = lid->next();
-
- // --- edge internal IDNodes (relies on good order storage, not checked)
-
- map<double, const SMDS_MeshNode *> params;
- SMDS_NodeIteratorPtr ite = aMesh.GetSubMesh(E)->GetSubMeshDS()->GetNodes();
- int nbPoints = aMesh.GetSubMesh(E)->GetSubMeshDS()->NbNodes();
-
- if(!_quadraticMesh) {
- while(ite->more()) {
- const SMDS_MeshNode* node = ite->next();
- const SMDS_EdgePosition* epos =
- static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
- double param = epos->GetUParameter();
- params[param] = node;
- }
- }
- else {
- vector<const SMDS_MeshNode*> nodes(nbPoints+2);
- nodes[0] = idFirst;
- nodes[nbPoints+1] = idLast;
- nbPoints = nbPoints/2;
- int nn = 1;
- while(ite->more()) {
- const SMDS_MeshNode* node = ite->next();
- nodes[nn++] = node;
- // check if node is medium
- bool IsMedium = false;
- SMDS_ElemIteratorPtr itn = node->GetInverseElementIterator();
- while (itn->more()) {
- const SMDS_MeshElement* elem = itn->next();
- if ( elem->GetType() != SMDSAbs_Edge )
- continue;
- if(elem->IsMediumNode(node)) {
- IsMedium = true;
- break;
- }
- }
- if(IsMedium)
- continue;
- const SMDS_EdgePosition* epos =
- static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
- double param = epos->GetUParameter();
- params[param] = node;
- }
- }
-
- if (nbPoints != params.size()) {
- MESSAGE( "BAD NODE ON EDGE POSITIONS" );
- return 0;
- }
- UVPtStruct* uvslf = new UVPtStruct[nbPoints + 2];
-
- double f, l;
- Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
-
- const TopoDS_Wire& W = BRepTools::OuterWire(F);
- bool FisF = (F.Orientation()==TopAbs_FORWARD);
- bool WisF = (W.Orientation()==TopAbs_FORWARD);
- bool isForward = (E.Orientation()==TopAbs_FORWARD);
- //if(isForward) cout<<"E is FORWARD"<<endl;
- //else cout<<"E is REVERSED"<<endl;
- if(!WisF) isForward = !isForward;
- if(!FisF) isForward = !isForward;
- //bool isForward = !(E.Orientation()==TopAbs_FORWARD);
- if(IsReverse) isForward = !isForward;
- double paramin = 0;
- double paramax = 0;
- if (isForward) {
- paramin = f;
- paramax = l;
- gp_Pnt2d p = C2d->Value(f); // first point = Vertex Forward
- uvslf[0].x = p.X();
- uvslf[0].y = p.Y();
- uvslf[0].param = f;
- uvslf[0].node = idFirst;
- //MESSAGE("__ f "<<f<<" "<<uvslf[0].x <<" "<<uvslf[0].y);
- map < double, const SMDS_MeshNode* >::iterator itp = params.begin();
- for (int i = 1; i <= nbPoints; i++) { // nbPoints internal
- double param = (*itp).first;
- gp_Pnt2d p = C2d->Value(param);
- uvslf[i].x = p.X();
- uvslf[i].y = p.Y();
- uvslf[i].param = param;
- uvslf[i].node = (*itp).second;
- //MESSAGE("__ "<<i<<" "<<param<<" "<<uvslf[i].x <<" "<<uvslf[i].y);
- itp++;
- }
- p = C2d->Value(l); // last point = Vertex Reversed
- uvslf[nbPoints + 1].x = p.X();
- uvslf[nbPoints + 1].y = p.Y();
- uvslf[nbPoints + 1].param = l;
- uvslf[nbPoints + 1].node = idLast;
- //MESSAGE("__ l "<<l<<" "<<uvslf[nbPoints+1].x <<" "<<uvslf[nbPoints+1].y);
- }
- else {
- paramin = l;
- paramax = f;
- gp_Pnt2d p = C2d->Value(l); // first point = Vertex Reversed
- uvslf[0].x = p.X();
- uvslf[0].y = p.Y();
- uvslf[0].param = l;
- uvslf[0].node = idLast;
- //MESSAGE("__ l "<<l<<" "<<uvslf[0].x <<" "<<uvslf[0].y);
- map < double, const SMDS_MeshNode* >::reverse_iterator itp = params.rbegin();
- for (int j = nbPoints; j >= 1; j--) { // nbPoints internal
- double param = (*itp).first;
- int i = nbPoints + 1 - j;
- gp_Pnt2d p = C2d->Value(param);
- uvslf[i].x = p.X();
- uvslf[i].y = p.Y();
- uvslf[i].param = param;
- uvslf[i].node = (*itp).second;
- //MESSAGE("__ "<<i<<" "<<param<<" "<<uvslf[i].x <<" "<<uvslf[i].y);
- itp++;
- }
- p = C2d->Value(f); // last point = Vertex Forward
- uvslf[nbPoints + 1].x = p.X();
- uvslf[nbPoints + 1].y = p.Y();
- uvslf[nbPoints + 1].param = f;
- uvslf[nbPoints + 1].node = idFirst;
- //MESSAGE("__ f "<<f<<" "<<uvslf[nbPoints+1].x <<" "<<uvslf[nbPoints+1].y);
- }
-
- ASSERT(paramin != paramax);
- for (int i = 0; i < nbPoints + 2; i++) {
- uvslf[i].normParam = (uvslf[i].param - paramin) / (paramax - paramin);
- }
-
- return uvslf;
-}
-
-
-//=============================================================================
-/*!
- * LoadEdgePoints
- */
-//=============================================================================
-UVPtStruct* StdMeshers_Quadrangle_2D::LoadEdgePoints (SMESH_Mesh & aMesh,
- const TopoDS_Face& F,
- const TopoDS_Edge& E,
- double first, double last)
-// bool isForward)
-{
- //MESSAGE("StdMeshers_Quadrangle_2D::LoadEdgePoints");
-
- // --- IDNodes of first and last Vertex
-
- TopoDS_Vertex VFirst, VLast;
- TopExp::Vertices(E, VFirst, VLast); // corresponds to f and l
-
- ASSERT(!VFirst.IsNull());
- SMDS_NodeIteratorPtr lid = aMesh.GetSubMesh(VFirst)->GetSubMeshDS()->GetNodes();
- if (!lid->more())
- {
- MESSAGE ( "NO NODE BUILT ON VERTEX" );
- return 0;
- }
- const SMDS_MeshNode* idFirst = lid->next();
-
- ASSERT(!VLast.IsNull());
- lid = aMesh.GetSubMesh(VLast)->GetSubMeshDS()->GetNodes();
- if (!lid->more())
- {
- MESSAGE ( "NO NODE BUILT ON VERTEX" );
- return 0;
- }
- const SMDS_MeshNode* idLast = lid->next();
-
- // --- edge internal IDNodes (relies on good order storage, not checked)
-
-// if(_quadraticMesh) {
- // fill myNLinkNodeMap
-// SMDS_ElemIteratorPtr iter = aMesh.GetSubMesh(E)->GetSubMeshDS()->GetElements();
-// while(iter->more()) {
-// const SMDS_MeshElement* elem = iter->next();
-// SMDS_ElemIteratorPtr nodeIt = elem->nodesIterator();
-// const SMDS_MeshNode* n1 = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
-// const SMDS_MeshNode* n2 = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
-// const SMDS_MeshNode* n3 = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
-// NLink link(( n1 < n2 ? n1 : n2 ), ( n1 < n2 ? n2 : n1 ));
-// myNLinkNodeMap.insert(NLinkNodeMap::value_type(link,n3));
-// myNLinkNodeMap[link] = n3;
-// }
-// }
-
- map<double, const SMDS_MeshNode *> params;
- SMDS_NodeIteratorPtr ite = aMesh.GetSubMesh(E)->GetSubMeshDS()->GetNodes();
- int nbPoints = aMesh.GetSubMesh(E)->GetSubMeshDS()->NbNodes();
-
- if(!_quadraticMesh) {
- while(ite->more()) {
- const SMDS_MeshNode* node = ite->next();
- const SMDS_EdgePosition* epos =
- static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
- double param = epos->GetUParameter();
- params[param] = node;
- }
- }
- else {
- nbPoints = nbPoints/2;
- while(ite->more()) {
- const SMDS_MeshNode* node = ite->next();
- // check if node is medium
- bool IsMedium = false;
- SMDS_ElemIteratorPtr itn = node->GetInverseElementIterator();
- while (itn->more()) {
- const SMDS_MeshElement* elem = itn->next();
- if ( elem->GetType() != SMDSAbs_Edge )
- continue;
- if(elem->IsMediumNode(node)) {
- IsMedium = true;
- break;
- }
- }
- if(IsMedium)
- continue;
- const SMDS_EdgePosition* epos =
- static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
- double param = epos->GetUParameter();
- params[param] = node;
- }
- }
-
- if (nbPoints != params.size()) {
- MESSAGE( "BAD NODE ON EDGE POSITIONS" );
- return 0;
- }
- UVPtStruct* uvslf = new UVPtStruct[nbPoints + 2];
-
- double f, l;
- Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
-
- bool isForward = (((l - f) * (last - first)) > 0);
- double paramin = 0;
- double paramax = 0;
- if (isForward)
- {
- paramin = f;
- paramax = l;
- gp_Pnt2d p = C2d->Value(f); // first point = Vertex Forward
- uvslf[0].x = p.X();
- uvslf[0].y = p.Y();
- uvslf[0].param = f;
- uvslf[0].node = idFirst;
- //MESSAGE("__ f "<<f<<" "<<uvslf[0].x <<" "<<uvslf[0].y);
- map < double, const SMDS_MeshNode* >::iterator itp = params.begin();
- for (int i = 1; i <= nbPoints; i++) // nbPoints internal
- {
- double param = (*itp).first;
- gp_Pnt2d p = C2d->Value(param);
- uvslf[i].x = p.X();
- uvslf[i].y = p.Y();
- uvslf[i].param = param;
- uvslf[i].node = (*itp).second;
- //MESSAGE("__ "<<i<<" "<<param<<" "<<uvslf[i].x <<" "<<uvslf[i].y);
- itp++;
- }
- p = C2d->Value(l); // last point = Vertex Reversed
- uvslf[nbPoints + 1].x = p.X();
- uvslf[nbPoints + 1].y = p.Y();
- uvslf[nbPoints + 1].param = l;
- uvslf[nbPoints + 1].node = idLast;
- //MESSAGE("__ l "<<l<<" "<<uvslf[nbPoints+1].x <<" "<<uvslf[nbPoints+1].y);
- } else
- {
- paramin = l;
- paramax = f;
- gp_Pnt2d p = C2d->Value(l); // first point = Vertex Reversed
- uvslf[0].x = p.X();
- uvslf[0].y = p.Y();
- uvslf[0].param = l;
- uvslf[0].node = idLast;
- //MESSAGE("__ l "<<l<<" "<<uvslf[0].x <<" "<<uvslf[0].y);
- map < double, const SMDS_MeshNode* >::reverse_iterator itp = params.rbegin();
-
- for (int j = nbPoints; j >= 1; j--) // nbPoints internal
- {
- double param = (*itp).first;
- int i = nbPoints + 1 - j;
- gp_Pnt2d p = C2d->Value(param);
- uvslf[i].x = p.X();
- uvslf[i].y = p.Y();
- uvslf[i].param = param;
- uvslf[i].node = (*itp).second;
- //MESSAGE("__ "<<i<<" "<<param<<" "<<uvslf[i].x <<" "<<uvslf[i].y);
- itp++;
- }
- p = C2d->Value(f); // last point = Vertex Forward
- uvslf[nbPoints + 1].x = p.X();
- uvslf[nbPoints + 1].y = p.Y();
- uvslf[nbPoints + 1].param = f;
- uvslf[nbPoints + 1].node = idFirst;
- //MESSAGE("__ f "<<f<<" "<<uvslf[nbPoints+1].x <<" "<<uvslf[nbPoints+1].y);
- }
-
- ASSERT(paramin != paramax);
- for (int i = 0; i < nbPoints + 2; i++)
- {
- uvslf[i].normParam = (uvslf[i].param - paramin) / (paramax - paramin);
- }
-
- return uvslf;
-}
-
-//=============================================================================
-/*!
- * MakeEdgePoints
- */
-//=============================================================================
-UVPtStruct* StdMeshers_Quadrangle_2D::MakeEdgePoints (SMESH_Mesh & aMesh,
- const TopoDS_Face& F,
- const TopoDS_Edge& E,
- double first, double last,
- int nb_segm)
-{
-// MESSAGE("StdMeshers_Quadrangle_2D::MakeEdgePoints");
-
- UVPtStruct* uvslf = new UVPtStruct[nb_segm + 1];
- list<double> params;
-
- // --- edge internal points
- double fi, li;
- Handle(Geom_Curve) Curve = BRep_Tool::Curve(E, fi, li);
- if (!Curve.IsNull()) {
- try {
- GeomAdaptor_Curve C3d (Curve);
- double length = EdgeLength(E);
- double eltSize = length / nb_segm;
- GCPnts_UniformAbscissa Discret (C3d, eltSize, fi, li);
- if (!Discret.IsDone()) return false;
- int NbPoints = Discret.NbPoints();
- for (int i = 1; i <= NbPoints; i++) {
- double param = Discret.Parameter(i);
- params.push_back(param);
- }
- }
- catch (Standard_Failure) {
- return 0;
- }
- }
- else
- {
- // Edge is a degenerated Edge
- BRep_Tool::Range(E, fi, li);
- double du = (li - fi) / nb_segm;
- for (int i = 1; i <= nb_segm + 1; i++)
- {
- double param = fi + (i - 1) * du;
- params.push_back(param);
- }
- }
-
- double f, l;
- Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
- ASSERT(f != l);
-
- bool isForward = (((l - f) * (last - first)) > 0);
- if (isForward) {
- list<double>::iterator itU = params.begin();
- for (int i = 0; i <= nb_segm; i++) // nbPoints internal
- {
- double param = *itU;
- gp_Pnt2d p = C2d->Value(param);
- uvslf[i].x = p.X();
- uvslf[i].y = p.Y();
- uvslf[i].param = param;
- uvslf[i].normParam = (param - f) / (l - f);
- itU++;
- }
- } else {
- list<double>::reverse_iterator itU = params.rbegin();
- for (int j = nb_segm; j >= 0; j--) // nbPoints internal
- {
- double param = *itU;
- int i = nb_segm - j;
- gp_Pnt2d p = C2d->Value(param);
- uvslf[i].x = p.X();
- uvslf[i].y = p.Y();
- uvslf[i].param = param;
- uvslf[i].normParam = (param - l) / (f - l);
- itU++;
- }
- }
-
- return uvslf;
-}
-
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-ostream & StdMeshers_Quadrangle_2D::SaveTo(ostream & save)
-{
- return save;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-istream & StdMeshers_Quadrangle_2D::LoadFrom(istream & load)
-{
- return load;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-ostream & operator <<(ostream & save, StdMeshers_Quadrangle_2D & hyp)
-{
- return hyp.SaveTo( save );
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-istream & operator >>(istream & load, StdMeshers_Quadrangle_2D & hyp)
-{
- return hyp.LoadFrom( load );
-}
