#include "SMESH_Gen.hxx"
#include "SMESH_MAT2d.hxx"
#include "SMESH_Mesh.hxx"
+#include "SMESH_MeshEditor.hxx"
#include "SMESH_MesherHelper.hxx"
#include "SMESH_ProxyMesh.hxx"
#include "SMESH_subMesh.hxx"
void SetSegmentLength( double len )
{
_value[ BEG_LENGTH_IND ] = len;
- _value[ PRECISION_IND ] = 1e-7;
+ _value[ PRECISION_IND ] = 1e-7;
_hypType = LOCAL_LENGTH;
}
};
_neededLowerHyps[ 1 ] = true; // suppress warning on hiding a global 1D algo
_neededLowerHyps[ 2 ] = true; // suppress warning on hiding a global 2D algo
_compatibleHypothesis.clear();
- //_compatibleHypothesis.push_back("ViscousLayers2D");
+ _compatibleHypothesis.push_back("ViscousLayers2D");
}
//================================================================================
const TopoDS_Shape& aShape,
Hypothesis_Status& aStatus)
{
+ aStatus = HYP_OK;
return true; // does not require hypothesis
}
namespace
{
+ typedef map< const SMDS_MeshNode*, list< const SMDS_MeshNode* > > TMergeMap;
+
+ //================================================================================
+ /*!
+ * \brief Sinuous face
+ */
+ struct SinuousFace
+ {
+ FaceQuadStruct::Ptr _quad;
+ vector< TopoDS_Edge > _edges;
+ vector< TopoDS_Edge > _sinuSide[2], _shortSide[2];
+ vector< TopoDS_Edge > _sinuEdges;
+ vector< Handle(Geom_Curve) > _sinuCurves;
+ int _nbWires;
+ list< int > _nbEdgesInWire;
+ TMergeMap _nodesToMerge;
+
+ SinuousFace( const TopoDS_Face& f ): _quad( new FaceQuadStruct )
+ {
+ list< TopoDS_Edge > edges;
+ _nbWires = SMESH_Block::GetOrderedEdges (f, edges, _nbEdgesInWire);
+ _edges.assign( edges.begin(), edges.end() );
+
+ _quad->side.resize( 4 );
+ _quad->face = f;
+ }
+ const TopoDS_Face& Face() const { return _quad->face; }
+ };
+
//================================================================================
/*!
* \brief Temporary mesh
}
};
+ //================================================================================
+ /*!
+ * \brief Return a member of a std::pair
+ */
+ //================================================================================
+
+ template< typename T >
+ T& get( std::pair< T, T >& thePair, bool is2nd )
+ {
+ return is2nd ? thePair.second : thePair.first;
+ }
+
//================================================================================
/*!
* \brief Select two EDGEs from a map, either mapped to least values or to max values
//================================================================================
/*!
* \brief Find EDGEs to discretize using projection from MA
- * \param [in] theFace - the FACE to be meshed
- * \param [in] theWire - ordered EDGEs of the FACE
- * \param [out] theSinuEdges - the EDGEs to discretize using projection from MA
- * \param [out] theShortEdges - other EDGEs
+ * \param [in,out] theSinuFace - the FACE to be meshed
* \return bool - OK or not
*
- * Is separate all EDGEs into four sides of a quadrangle connected in the order:
+ * It separates all EDGEs into four sides of a quadrangle connected in the order:
* theSinuEdges[0], theShortEdges[0], theSinuEdges[1], theShortEdges[1]
*/
//================================================================================
bool getSinuousEdges( SMESH_MesherHelper& theHelper,
- const TopoDS_Face& theFace,
- list<TopoDS_Edge>& theWire,
- vector<TopoDS_Edge> theSinuEdges[2],
- vector<TopoDS_Edge> theShortEdges[2])
+ SinuousFace& theSinuFace)
{
+ vector<TopoDS_Edge> * theSinuEdges = & theSinuFace._sinuSide [0];
+ vector<TopoDS_Edge> * theShortEdges = & theSinuFace._shortSide[0];
theSinuEdges[0].clear();
theSinuEdges[1].clear();
theShortEdges[0].clear();
theShortEdges[1].clear();
-
- vector<TopoDS_Edge> allEdges( theWire.begin(), theWire.end() );
+
+ vector<TopoDS_Edge> & allEdges = theSinuFace._edges;
const size_t nbEdges = allEdges.size();
- if ( nbEdges < 4 )
+ if ( nbEdges < 4 && theSinuFace._nbWires == 1 )
+ return false;
+
+ if ( theSinuFace._nbWires == 2 ) // ring
+ {
+ size_t nbOutEdges = theSinuFace._nbEdgesInWire.front();
+ theSinuEdges[0].assign ( allEdges.begin(), allEdges.begin() + nbOutEdges );
+ theSinuEdges[1].assign ( allEdges.begin() + nbOutEdges, allEdges.end() );
+ return true;
+ }
+ if ( theSinuFace._nbWires > 2 )
return false;
// create MedialAxis to find short edges by analyzing MA branches
double minSegLen = getMinSegLen( theHelper, allEdges );
- SMESH_MAT2d::MedialAxis ma( theFace, allEdges, minSegLen );
+ SMESH_MAT2d::MedialAxis ma( theSinuFace.Face(), allEdges, minSegLen * 3 );
// in an initial request case, theFace represents a part of a river with almost parallel banks
// so there should be two branch points
!vCommon.IsSame( theHelper.IthVertex( 1, theSinuEdges[0].back() )))
theShortEdges[0].swap( theShortEdges[1] );
+ theSinuFace._sinuEdges = theSinuEdges[0];
+ theSinuFace._sinuEdges.insert( theSinuFace._sinuEdges.end(),
+ theSinuEdges[1].begin(), theSinuEdges[1].end() );
+
return ( theShortEdges[0].size() > 0 && theShortEdges[1].size() > 0 &&
theSinuEdges [0].size() > 0 && theSinuEdges [1].size() > 0 );
// therefor we use a complex criterion to find TWO short non-sinuous EDGEs
// and the rest EDGEs will be treated as sinuous.
// A short edge should have the following features:
- // a) straight
- // b) short
- // c) with convex corners at ends
- // d) far from the other short EDGE
+ // a) straight
+ // b) short
+ // c) with convex corners at ends
+ // d) far from the other short EDGE
- // vector< double > isStraightEdge( nbEdges, 0 ); // criterion value
+ // vector< double > isStraightEdge( nbEdges, 0 ); // criterion value
- // // a0) evaluate continuity
- // const double contiWgt = 0.5; // weight of continuity in the criterion
- // multimap< int, TopoDS_Edge > continuity;
- // for ( size_t i = 0; i < nbEdges; ++I )
+ // // a0) evaluate continuity
+ // const double contiWgt = 0.5; // weight of continuity in the criterion
+ // multimap< int, TopoDS_Edge > continuity;
+ // for ( size_t i = 0; i < nbEdges; ++I )
// {
// BRepAdaptor_Curve curve( allEdges[i] );
// GeomAbs_Shape C = GeomAbs_CN;
//================================================================================
TopoDS_Edge makeEdgeFromMA( SMESH_MesherHelper& theHelper,
- const SMESH_MAT2d::MedialAxis& theMA )
+ const SMESH_MAT2d::MedialAxis& theMA,
+ const double theMinSegLen)
{
- if ( theMA.getBranches().size() != 1 )
+ if ( theMA.nbBranches() != 1 )
return TopoDS_Edge();
vector< gp_XY > uv;
- theMA.getPoints( theMA.getBranches()[0], uv );
+ theMA.getPoints( theMA.getBranch(0), uv );
if ( uv.size() < 2 )
return TopoDS_Edge();
TopoDS_Face face = TopoDS::Face( theHelper.GetSubShape() );
Handle(Geom_Surface) surface = BRep_Tool::Surface( face );
+ vector< gp_Pnt > pnt;
+ pnt.reserve( uv.size() * 2 );
+ pnt.push_back( surface->Value( uv[0].X(), uv[0].Y() ));
+ for ( size_t i = 1; i < uv.size(); ++i )
+ {
+ gp_Pnt p = surface->Value( uv[i].X(), uv[i].Y() );
+ int nbDiv = int( p.Distance( pnt.back() ) / theMinSegLen );
+ for ( int iD = 1; iD < nbDiv; ++iD )
+ {
+ double R = iD / double( nbDiv );
+ gp_XY uvR = uv[i-1] * (1 - R) + uv[i] * R;
+ pnt.push_back( surface->Value( uvR.X(), uvR.Y() ));
+ }
+ pnt.push_back( p );
+ }
+
// cout << "from salome.geom import geomBuilder" << endl;
// cout << "geompy = geomBuilder.New(salome.myStudy)" << endl;
- Handle(TColgp_HArray1OfPnt) points = new TColgp_HArray1OfPnt(1, uv.size());
- for ( size_t i = 0; i < uv.size(); ++i )
+ Handle(TColgp_HArray1OfPnt) points = new TColgp_HArray1OfPnt(1, pnt.size());
+ for ( size_t i = 0; i < pnt.size(); ++i )
{
- gp_Pnt p = surface->Value( uv[i].X(), uv[i].Y() );
+ gp_Pnt& p = pnt[i];
points->SetValue( i+1, p );
- //cout << "geompy.MakeVertex( "<< p.X()<<", " << p.Y()<<", " << p.Z()<<" )" << endl;
+ // cout << "geompy.MakeVertex( "<< p.X()<<", " << p.Y()<<", " << p.Z()
+ // <<" theName = 'p_" << i << "')" << endl;
}
GeomAPI_Interpolate interpol( points, /*isClosed=*/false, gp::Resolution());
bool divideMA( SMESH_MesherHelper& theHelper,
const SMESH_MAT2d::MedialAxis& theMA,
- const vector<TopoDS_Edge>& theSinuEdges,
- const size_t theSinuSide0Size,
+ const SinuousFace& theSinuFace,
SMESH_Algo* the1dAlgo,
+ const double theMinSegLen,
vector<double>& theMAParams )
{
// check if all EDGEs of one size are meshed, then MA discretization is not needed
SMESH_Mesh* mesh = theHelper.GetMesh();
size_t nbComputedEdges[2] = { 0, 0 };
- for ( size_t i = 1; i < theSinuEdges.size(); ++i )
- {
- bool isComputed = ( ! mesh->GetSubMesh( theSinuEdges[i] )->IsEmpty() );
- nbComputedEdges[ i < theSinuSide0Size ] += isComputed;
- }
- if ( nbComputedEdges[0] == theSinuSide0Size ||
- nbComputedEdges[1] == theSinuEdges.size() - theSinuSide0Size )
+ for ( size_t iS = 0; iS < 2; ++iS )
+ for ( size_t i = 0; i < theSinuFace._sinuSide[iS].size(); ++i )
+ {
+ bool isComputed = ( ! mesh->GetSubMesh( theSinuFace._sinuSide[iS][i] )->IsEmpty() );
+ nbComputedEdges[ iS ] += isComputed;
+ }
+ if ( nbComputedEdges[0] == theSinuFace._sinuSide[0].size() ||
+ nbComputedEdges[1] == theSinuFace._sinuSide[1].size() )
return true; // discretization is not needed
- TopoDS_Edge branchEdge = makeEdgeFromMA( theHelper, theMA );
+ TopoDS_Edge branchEdge = makeEdgeFromMA( theHelper, theMA, theMinSegLen );
if ( branchEdge.IsNull() )
return false;
// cout << "Write " << file << endl;
// look for a most local hyps assigned to theSinuEdges
- TopoDS_Edge edge = theSinuEdges[0];
+ TopoDS_Edge edge = theSinuFace._sinuEdges[0];
int mostSimpleShape = (int) getHypShape( mesh, edge );
- for ( size_t i = 1; i < theSinuEdges.size(); ++i )
+ for ( size_t i = 1; i < theSinuFace._sinuEdges.size(); ++i )
{
- int shapeType = (int) getHypShape( mesh, theSinuEdges[i] );
+ int shapeType = (int) getHypShape( mesh, theSinuFace._sinuEdges[i] );
if ( shapeType > mostSimpleShape )
- edge = theSinuEdges[i];
+ edge = theSinuFace._sinuEdges[i];
}
SMESH_Algo* algo = the1dAlgo;
//================================================================================
/*!
- * \brief Modifies division parameters on MA to make them coincide with projections
- * of VERTEXes to MA for a given pair of opposite EDGEs
+ * \brief Select division parameters on MA and make them coincide at ends with
+ * projections of VERTEXes to MA for a given pair of opposite EDGEs
* \param [in] theEdgePairInd - index of the EDGE pair
* \param [in] theDivPoints - the BranchPoint's dividing MA into parts each
* corresponding to a unique pair of opposite EDGEs
- * \param [in,out] theMAParams - the MA division parameters to modify
- * \param [in,out] theParBeg - index of the 1st division point for the given EDGE pair
- * \param [in,out] theParEnd - index of the last division point for the given EDGE pair
+ * \param [in] theMAParams - the MA division parameters
+ * \param [out] theSelectedMAParams - the selected MA parameters
* \return bool - is OK
*/
//================================================================================
theSelectedMAParams = theMAParams;
return true;
}
- if ( theEdgePairInd > theDivPoints.size() )
+ if ( theEdgePairInd > theDivPoints.size() || theMAParams.empty() )
return false;
- // TODO
- return false;
+ // find a range of params to copy
+
+ double par1 = 0;
+ size_t iPar1 = 0;
+ if ( theEdgePairInd > 0 )
+ {
+ const SMESH_MAT2d::BranchPoint& bp = theDivPoints[ theEdgePairInd-1 ];
+ bp._branch->getParameter( bp, par1 );
+ while ( theMAParams[ iPar1 ] < par1 ) ++iPar1;
+ if ( par1 - theMAParams[ iPar1-1 ] < theMAParams[ iPar1 ] - par1 )
+ --iPar1;
+ }
+
+ double par2 = 1;
+ size_t iPar2 = theMAParams.size() - 1;
+ if ( theEdgePairInd < theDivPoints.size() )
+ {
+ const SMESH_MAT2d::BranchPoint& bp = theDivPoints[ theEdgePairInd ];
+ bp._branch->getParameter( bp, par2 );
+ iPar2 = iPar1;
+ while ( theMAParams[ iPar2 ] < par2 ) ++iPar2;
+ if ( par2 - theMAParams[ iPar2-1 ] < theMAParams[ iPar2 ] - par2 )
+ --iPar2;
+ }
+
+ theSelectedMAParams.assign( theMAParams.begin() + iPar1,
+ theMAParams.begin() + iPar2 + 1 );
+
+ // adjust theSelectedMAParams to fit between par1 and par2
+
+ double d = par1 - theSelectedMAParams[0];
+ double f = ( par2 - par1 ) / ( theSelectedMAParams.back() - theSelectedMAParams[0] );
+
+ for ( size_t i = 0; i < theSelectedMAParams.size(); ++i )
+ {
+ theSelectedMAParams[i] += d;
+ theSelectedMAParams[i] = par1 + ( theSelectedMAParams[i] - par1 ) * f;
+ }
+
+ return true;
}
//--------------------------------------------------------------------------------
double _u;
int _edgeInd; // index in theSinuEdges vector
- NodePoint(const SMDS_MeshNode* n=0 ): _node(n), _u(0), _edgeInd(-1) {}
+ NodePoint(): _node(0), _u(0), _edgeInd(-1) {}
+ NodePoint(const SMDS_MeshNode* n, double u, size_t iEdge ): _node(n), _u(u), _edgeInd(iEdge) {}
NodePoint(double u, size_t iEdge) : _node(0), _u(u), _edgeInd(iEdge) {}
NodePoint(const SMESH_MAT2d::BoundaryPoint& p) : _node(0), _u(p._param), _edgeInd(p._edgeIndex) {}
+ gp_Pnt Point(const vector< Handle(Geom_Curve) >& curves) const
+ {
+ return curves[ _edgeInd ]->Value( _u );
+ }
};
//================================================================================
*/
//================================================================================
- bool findVertex( NodePoint& theNodePnt,
- const vector<TopoDS_Edge>& theSinuEdges,
- SMESHDS_Mesh* theMeshDS)
+ bool findVertexAndNode( NodePoint& theNodePnt,
+ const vector<TopoDS_Edge>& theSinuEdges,
+ SMESHDS_Mesh* theMeshDS = 0,
+ size_t theEdgeIndPrev = 0,
+ size_t theEdgeIndNext = 0)
{
if ( theNodePnt._edgeInd >= theSinuEdges.size() )
return false;
double f,l;
BRep_Tool::Range( theSinuEdges[ theNodePnt._edgeInd ], f,l );
+ const double tol = 1e-3 * ( l - f );
TopoDS_Vertex V;
- if ( Abs( f - theNodePnt._u ))
+ if ( Abs( f - theNodePnt._u ) < tol )
V = SMESH_MesherHelper::IthVertex( 0, theSinuEdges[ theNodePnt._edgeInd ], /*CumOri=*/false);
- else if ( Abs( l - theNodePnt._u ))
+ else if ( Abs( l - theNodePnt._u ) < tol )
V = SMESH_MesherHelper::IthVertex( 1, theSinuEdges[ theNodePnt._edgeInd ], /*CumOri=*/false);
+ else if ( theEdgeIndPrev != theEdgeIndNext )
+ TopExp::CommonVertex( theSinuEdges[theEdgeIndPrev], theSinuEdges[theEdgeIndNext], V );
- if ( !V.IsNull() )
+ if ( !V.IsNull() && theMeshDS )
{
theNodePnt._node = SMESH_Algo::VertexNode( V, theMeshDS );
if ( !theNodePnt._node )
theNodePnt._node = theMeshDS->AddNode( p.X(), p.Y(), p.Z() );
theMeshDS->SetNodeOnVertex( theNodePnt._node, V );
}
- return true;
}
- return false;
+ return !V.IsNull();
}
//================================================================================
* \brief Add to the map of NodePoint's those on VERTEXes
* \param [in,out] theHelper - the helper
* \param [in] theMA - Medial Axis
+ * \param [in] theMinSegLen - minimal segment length
* \param [in] theDivPoints - projections of VERTEXes to MA
* \param [in] theSinuEdges - the sinuous EDGEs
* \param [in] theSideEdgeIDs - indices of sinuous EDGEs per side
* \param [in] theIsEdgeComputed - is sinuous EGDE is meshed
* \param [in,out] thePointsOnE - the map to fill
+ * \param [out] theNodes2Merge - the map of nodes to merge
*/
//================================================================================
bool projectVertices( SMESH_MesherHelper& theHelper,
const SMESH_MAT2d::MedialAxis& theMA,
const vector< SMESH_MAT2d::BranchPoint >& theDivPoints,
- const vector<TopoDS_Edge>& theSinuEdges,
- //const vector< int > theSideEdgeIDs[2],
+ const vector< std::size_t > & theEdgeIDs1,
+ const vector< std::size_t > & theEdgeIDs2,
const vector< bool >& theIsEdgeComputed,
- map< double, pair< NodePoint, NodePoint > > & thePointsOnE)
+ map< double, pair< NodePoint, NodePoint > > & thePointsOnE,
+ SinuousFace& theSinuFace)
{
- if ( theDivPoints.empty() )
- return true;
-
SMESHDS_Mesh* meshDS = theHelper.GetMeshDS();
+ const vector<TopoDS_Edge>& theSinuEdges = theSinuFace._sinuEdges;
+ const vector< Handle(Geom_Curve) >& theCurves = theSinuFace._sinuCurves;
double uMA;
SMESH_MAT2d::BoundaryPoint bp[2];
- const SMESH_MAT2d::Branch& branch = theMA.getBranches()[0];
+ const SMESH_MAT2d::Branch& branch = *theMA.getBranch(0);
+
+ // add to thePointsOnE NodePoint's of ends of theSinuEdges
+ if ( !branch.getBoundaryPoints( 0., bp[0], bp[1] ) ||
+ !theMA.getBoundary().moveToClosestEdgeEnd( bp[0] ) ||
+ !theMA.getBoundary().moveToClosestEdgeEnd( bp[1] )) return false;
+ NodePoint np0( bp[0]), np1( bp[1] );
+ findVertexAndNode( np0, theSinuEdges, meshDS );
+ findVertexAndNode( np1, theSinuEdges, meshDS );
+ thePointsOnE.insert( make_pair( -0.1, make_pair( np0, np1 )));
+
+ if ( !branch.getBoundaryPoints( 1., bp[0], bp[1] ) ||
+ !theMA.getBoundary().moveToClosestEdgeEnd( bp[0] ) ||
+ !theMA.getBoundary().moveToClosestEdgeEnd( bp[1] )) return false;
+ np0 = bp[0]; np1 = bp[1];
+ findVertexAndNode( np0, theSinuEdges, meshDS );
+ findVertexAndNode( np1, theSinuEdges, meshDS );
+ thePointsOnE.insert( make_pair( 1.1, make_pair( np0, np1)));
+
+ // project theDivPoints
+
+ if ( theDivPoints.empty() )
+ return true;
for ( size_t i = 0; i < theDivPoints.size(); ++i )
{
if ( !branch.getBoundaryPoints( theDivPoints[i], bp[0], bp[1] ))
return false;
- NodePoint np[2] = { NodePoint( bp[0] ),
- NodePoint( bp[1] ) };
- bool isVertex[2] = { findVertex( np[0], theSinuEdges, meshDS ),
- findVertex( np[1], theSinuEdges, meshDS )};
+ NodePoint np[2] = {
+ NodePoint( bp[0] ),
+ NodePoint( bp[1] )
+ };
+ bool isVertex[2] = {
+ findVertexAndNode( np[0], theSinuEdges, meshDS, theEdgeIDs1[i], theEdgeIDs1[i+1] ),
+ findVertexAndNode( np[1], theSinuEdges, meshDS, theEdgeIDs2[i], theEdgeIDs2[i+1] )
+ };
map< double, pair< NodePoint, NodePoint > >::iterator u2NP =
thePointsOnE.insert( make_pair( uMA, make_pair( np[0], np[1]))).first;
+ if ( !isVertex[0] && !isVertex[1] ) return false; // error
if ( isVertex[0] && isVertex[1] )
continue;
+ const size_t iVert = isVertex[0] ? 0 : 1;
+ const size_t iNode = 1 - iVert;
- bool isOppComputed = theIsEdgeComputed[ np[ isVertex[0] ]._edgeInd ];
-
+ bool isOppComputed = theIsEdgeComputed[ np[ iNode ]._edgeInd ];
if ( !isOppComputed )
continue;
// a VERTEX is projected on a meshed EDGE; there are two options:
- // - a projected point is joined with a closet node if a strip between this and neighbor
- // projection is wide enough; joining is done by setting the same node to the BoundaryPoint
- // - a neighbor projection is merged this this one if it too close; a node of deleted
+ // 1) a projected point is joined with a closet node if a strip between this and neighbor
+ // projection is WIDE enough; joining is done by creating a node coincident with the
+ // existing node which will be merged together after all;
+ // 2) a neighbor projection is merged with this one if it is TOO CLOSE; a node of deleted
// projection is set to the BoundaryPoint of this projection
+ // evaluate distance to neighbor projections
+ const double rShort = 0.2;
+ bool isShortPrev[2], isShortNext[2];
+ map< double, pair< NodePoint, NodePoint > >::iterator u2NPPrev = u2NP, u2NPNext = u2NP;
+ --u2NPPrev; ++u2NPNext;
+ // bool hasPrev = ( u2NP != thePointsOnE.begin() );
+ // bool hasNext = ( u2NPNext != thePointsOnE.end() );
+ // if ( !hasPrev ) u2NPPrev = u2NP0;
+ // if ( !hasNext ) u2NPNext = u2NP1;
+ for ( int iS = 0; iS < 2; ++iS ) // side with Vertex and side with Nodes
+ {
+ NodePoint np = get( u2NP->second, iS );
+ NodePoint npPrev = get( u2NPPrev->second, iS );
+ NodePoint npNext = get( u2NPNext->second, iS );
+ gp_Pnt p = np .Point( theCurves );
+ gp_Pnt pPrev = npPrev.Point( theCurves );
+ gp_Pnt pNext = npNext.Point( theCurves );
+ double distPrev = p.Distance( pPrev );
+ double distNext = p.Distance( pNext );
+ double r = distPrev / ( distPrev + distNext );
+ isShortPrev[iS] = ( r < rShort );
+ isShortNext[iS] = (( 1 - r ) > ( 1 - rShort ));
+ }
+ // if ( !hasPrev ) isShortPrev[0] = isShortPrev[1] = false;
+ // if ( !hasNext ) isShortNext[0] = isShortNext[1] = false;
+
+ map< double, pair< NodePoint, NodePoint > >::iterator u2NPClose;
+ if (( isShortPrev[0] && isShortPrev[1] ) || // option 2) -> remove a too close projection
+ ( isShortNext[0] && isShortNext[1] ))
+ {
+ u2NPClose = isShortPrev[0] ? u2NPPrev : u2NPNext;
+ NodePoint& npProj = get( u2NP->second, iNode ); // NP of VERTEX projection
+ NodePoint npCloseN = get( u2NPClose->second, iNode ); // NP close to npProj
+ NodePoint npCloseV = get( u2NPClose->second, iVert ); // NP close to VERTEX
+ if ( !npCloseV._node )
+ {
+ npProj = npCloseN;
+ thePointsOnE.erase( isShortPrev[0] ? u2NPPrev : u2NPNext );
+ continue;
+ }
+ else
+ {
+ // can't remove the neighbor projection as it is also from VERTEX, -> option 1)
+ }
+ }
+ // else: option 1) - wide enough -> "duplicate" existing node
+ {
+ u2NPClose = isShortPrev[ iNode ] ? u2NPPrev : u2NPNext;
+ NodePoint& npProj = get( u2NP->second, iNode ); // NP of VERTEX projection
+ NodePoint& npCloseN = get( u2NPClose->second, iNode ); // NP close to npProj
+ npProj = npCloseN;
+ npProj._node = 0;
+ //npProj._edgeInd = npCloseN._edgeInd;
+ // npProj._u = npCloseN._u + 1e-3 * Abs( get( u2NPPrev->second, iNode )._u -
+ // get( u2NPNext->second, iNode )._u );
+ // gp_Pnt p = npProj.Point( theCurves );
+ // npProj._node = meshDS->AddNode( p.X(), p.Y(), p.Z() );
+ // meshDS->SetNodeOnEdge( npProj._node, theSinuEdges[ npProj._edgeInd ], npProj._u );
+
+ //theNodes2Merge[ npCloseN._node ].push_back( npProj._node );
+ }
}
return true;
}
+ //================================================================================
+ /*!
+ * \brief Move coincident nodes to make node params on EDGE unique
+ * \param [in] theHelper - the helper
+ * \param [in] thePointsOnE - nodes on two opposite river sides
+ * \param [in] theSinuFace - the sinuous FACE
+ * \param [out] theNodes2Merge - the map of nodes to merge
+ */
+ //================================================================================
+
+ void separateNodes( SMESH_MesherHelper& theHelper,
+ map< double, pair< NodePoint, NodePoint > > & thePointsOnE,
+ SinuousFace& theSinuFace )
+ {
+ if ( thePointsOnE.size() < 2 )
+ return;
+
+ SMESHDS_Mesh* meshDS = theHelper.GetMeshDS();
+ const vector<TopoDS_Edge>& theSinuEdges = theSinuFace._sinuEdges;
+
+ typedef map< double, pair< NodePoint, NodePoint > >::iterator TIterator;
+
+ for ( int iSide = 0; iSide < 2; ++iSide )
+ {
+ TIterator u2NP0, u2NP1, u2NP = thePointsOnE.begin();
+ while ( u2NP != thePointsOnE.end() )
+ {
+ while ( u2NP != thePointsOnE.end() &&
+ get( u2NP->second, iSide )._node )
+ ++u2NP; // skip NP with an existing node (VERTEXes must be meshed)
+ if ( u2NP == thePointsOnE.end() )
+ break;
+
+ // find a range of not meshed NP on one EDGE
+ u2NP0 = u2NP;
+ if ( !findVertexAndNode( get( u2NP0->second, iSide ), theSinuEdges ))
+ --u2NP0;
+ int iCurEdge = get( u2NP->second, iSide )._edgeInd;
+ int nbNP = 1;
+ while ( get( u2NP->second, iSide )._edgeInd == iCurEdge &&
+ get( u2NP->second, iSide )._node == 0 )
+ ++u2NP, ++nbNP;
+ u2NP1 = u2NP; // end of not meshed NP on iCurEdge
+
+ // fix parameters of extremity NP of the range
+ NodePoint* np0 = & get( u2NP0->second, iSide );
+ NodePoint* np1 = & get( u2NP1->second, iSide );
+ const TopoDS_Edge& edge = TopoDS::Edge( theSinuFace._sinuEdges[ iCurEdge ]);
+ if ( np0->_node && np0->_edgeInd != iCurEdge )
+ {
+ np0->_u = theHelper.GetNodeU( edge, np0->_node );
+ np0->_edgeInd = iCurEdge;
+ }
+ if ( np1->_node && np1->_edgeInd != iCurEdge )
+ {
+ np1->_u = theHelper.GetNodeU( edge, np1->_node );
+ np1->_edgeInd = iCurEdge;
+ }
+
+ // find coincident NPs
+ double f,l;
+ BRep_Tool::Range( edge, f,l );
+ double tol = 1e-2* (l-f) / nbNP;
+ TIterator u2NPEq = thePointsOnE.end();
+ u2NP = u2NP0;
+ for ( ++u2NP; u2NP0 != u2NP1; ++u2NP, ++u2NP0 )
+ {
+ np0 = & get( u2NP0->second, iSide );
+ np1 = & get( u2NP->second, iSide );
+ bool coincides = ( Abs( np0->_u - np1->_u ) < tol );
+ if ( coincides && u2NPEq == thePointsOnE.end() )
+ u2NPEq = u2NP0;
+
+ if (( u2NPEq != thePointsOnE.end() ) &&
+ ( u2NP == u2NP1 || !coincides ))
+ {
+ if ( !get( u2NPEq->second, iSide )._node )
+ --u2NPEq;
+ if ( coincides && !get( u2NP->second, iSide )._node && u2NP0 != u2NP1 )
+ ++u2NP;
+
+ // distribute nodes between u2NPEq and u2NP
+ size_t nbSeg = std::distance( u2NPEq, u2NP );
+ double du = 1. / nbSeg * ( get( u2NP->second, iSide )._u -
+ get( u2NPEq->second, iSide )._u );
+ double u = get( u2NPEq->second, iSide )._u + du;
+
+ const SMDS_MeshNode* closeNode =
+ get(( coincides ? u2NP : u2NPEq )->second, iSide )._node;
+ list< const SMDS_MeshNode* >& eqNodes = theSinuFace._nodesToMerge[ closeNode ];
+
+ for ( ++u2NPEq; u2NPEq != u2NP; ++u2NPEq, u += du )
+ {
+ np0 = & get( u2NPEq->second, iSide );
+ np0->_u = u;
+ gp_Pnt p = np0->Point( theSinuFace._sinuCurves );
+ np0->_node = meshDS->AddNode( p.X(), p.Y(), p.Z() );
+ meshDS->SetNodeOnEdge( np0->_node, theSinuEdges[ np0->_edgeInd ], np0->_u );
+ if ( !closeNode )
+ eqNodes = theSinuFace._nodesToMerge[ closeNode = np0->_node ];
+ else
+ eqNodes.push_back( np0->_node );
+ }
+ }
+ }
+ u2NP = u2NP1;
+ while ( get( u2NP->second, iSide )._edgeInd != iCurEdge )
+ --u2NP;
+ u2NP++;
+ }
+ }
+ }
+
//================================================================================
/*!
* \brief Divide the sinuous EDGEs by projecting the division point of Medial
* Axis to the EGDEs
* \param [in] theHelper - the helper
+ * \param [in] theMinSegLen - minimal segment length
* \param [in] theMA - the Medial Axis
* \param [in] theMAParams - parameters of division points of \a theMA
* \param [in] theSinuEdges - the EDGEs to make nodes on
//================================================================================
bool computeSinuEdges( SMESH_MesherHelper& theHelper,
+ double /*theMinSegLen*/,
SMESH_MAT2d::MedialAxis& theMA,
vector<double>& theMAParams,
- const vector<TopoDS_Edge>& theSinuEdges,
- const size_t theSinuSide0Size)
+ SinuousFace& theSinuFace)
{
- if ( theMA.getBranches().size() != 1 )
+ if ( theMA.nbBranches() != 1 )
return false;
// normalize theMAParams
SMESHDS_Mesh* meshDS = theHelper.GetMeshDS();
double f,l;
- vector< Handle(Geom_Curve) > curves ( theSinuEdges.size() );
+ // get data of sinuous EDGEs and remove unnecessary nodes
+ const vector< TopoDS_Edge >& theSinuEdges = theSinuFace._sinuEdges;
+ vector< Handle(Geom_Curve) >& curves = theSinuFace._sinuCurves;
vector< int > edgeIDs( theSinuEdges.size() );
vector< bool > isComputed( theSinuEdges.size() );
- //bool hasComputed = false;
+ curves.resize( theSinuEdges.size(), 0 );
for ( size_t i = 0; i < theSinuEdges.size(); ++i )
{
curves[i] = BRep_Tool::Curve( theSinuEdges[i], f,l );
SMESH_subMesh* sm = mesh->GetSubMesh( theSinuEdges[i] );
edgeIDs [i] = sm->GetId();
isComputed[i] = ( !sm->IsEmpty() );
- // if ( isComputed[i] )
- // hasComputed = true;
+ if ( isComputed[i] )
+ {
+ TopAbs_ShapeEnum shape = getHypShape( mesh, theSinuEdges[i] );
+ if ( shape == TopAbs_SHAPE || shape <= TopAbs_FACE )
+ {
+ // EDGE computed using global hypothesis -> clear it
+ bool hasComputedFace = false;
+ PShapeIteratorPtr faceIt = theHelper.GetAncestors( theSinuEdges[i], *mesh, TopAbs_FACE );
+ while ( const TopoDS_Shape* face = faceIt->next() )
+ if (( !face->IsSame( theSinuFace.Face())) &&
+ ( hasComputedFace = !mesh->GetSubMesh( *face )->IsEmpty() ))
+ break;
+ if ( !hasComputedFace )
+ sm->ComputeStateEngine( SMESH_subMesh::CLEAN );
+ isComputed[i] = false;
+ }
+ }
}
- const SMESH_MAT2d::Branch& branch = theMA.getBranches()[0];
+ const SMESH_MAT2d::Branch& branch = *theMA.getBranch(0);
SMESH_MAT2d::BoundaryPoint bp[2];
vector< std::size_t > edgeIDs1, edgeIDs2;
branch.getParameter( brp, maParamLast );
map< double, const SMDS_MeshNode* >::iterator u2n = nodeParams.begin(), u2nEnd = --nodeParams.end();
- TMAPar2NPoints::iterator pos, end = pointsOnE.end();
+ TMAPar2NPoints::iterator end = pointsOnE.end(), pos = end;
TMAPar2NPoints::iterator & hint = (maParamLast > maParam1st) ? end : pos;
for ( ++u2n; u2n != u2nEnd; ++u2n )
{
if ( !branch.getParameter( brp, maParam ))
return false;
- npN = NodePoint( u2n->second );
+ npN = NodePoint( u2n->second, u2n->first, iEdgeComputed );
npB = NodePoint( bndPnt );
pos = pointsOnE.insert( hint, make_pair( maParam, make_pair( np0, np1 )));
}
++iEdgePair;
}
- if ( !projectVertices( theHelper, theMA, divPoints, theSinuEdges, isComputed, pointsOnE ))
+ if ( !projectVertices( theHelper, theMA, divPoints, edgeIDs1, edgeIDs2,
+ isComputed, pointsOnE, theSinuFace ))
return false;
+ separateNodes( theHelper, pointsOnE, theSinuFace );
+
// create nodes
TMAPar2NPoints::iterator u2np = pointsOnE.begin();
for ( ; u2np != pointsOnE.end(); ++u2np )
return true;
}
+ //================================================================================
+ /*!
+ * \brief Remove temporary node
+ */
+ //================================================================================
+
+ void mergeNodes( SMESH_MesherHelper& theHelper,
+ SinuousFace& theSinuFace )
+ {
+ SMESH_MeshEditor editor( theHelper.GetMesh() );
+ SMESH_MeshEditor::TListOfListOfNodes nodesGroups;
+
+ TMergeMap::iterator n2nn = theSinuFace._nodesToMerge.begin();
+ for ( ; n2nn != theSinuFace._nodesToMerge.end(); ++n2nn )
+ {
+ if ( !n2nn->first ) continue;
+ nodesGroups.push_back( list< const SMDS_MeshNode* >() );
+ list< const SMDS_MeshNode* > & group = nodesGroups.back();
+
+ group.push_back( n2nn->first );
+ group.splice( group.end(), n2nn->second );
+ }
+ editor.MergeNodes( nodesGroups );
+ }
} // namespace
StdMeshers_Quadrangle_2D::myProxyMesh.reset();
StdMeshers_Quadrangle_2D::myHelper = 0;
-
+
return ok;
}
TopoDS_Face F = TopoDS::Face( theShape );
if ( F.Orientation() >= TopAbs_INTERNAL ) F.Orientation( TopAbs_FORWARD );
- list< TopoDS_Edge > edges;
- list< int > nbEdgesInWire;
- int nbWire = SMESH_Block::GetOrderedEdges (F, edges, nbEdgesInWire);
+ SinuousFace sinuFace( F );
+
+ _progress = 0.01;
- vector< TopoDS_Edge > sinuSide[2], shortSide[2];
- if ( nbWire == 1 && getSinuousEdges( helper, F, edges, sinuSide, shortSide ))
+ if ( getSinuousEdges( helper, sinuFace ))
{
- vector< TopoDS_Edge > sinuEdges = sinuSide[0];
- sinuEdges.insert( sinuEdges.end(), sinuSide[1].begin(), sinuSide[1].end() );
- if ( sinuEdges.size() > 2 )
- return error(COMPERR_BAD_SHAPE, "Not yet supported case" );
+ _progress = 0.2;
- double minSegLen = getMinSegLen( helper, sinuEdges );
- SMESH_MAT2d::MedialAxis ma( F, sinuEdges, minSegLen, /*ignoreCorners=*/true );
+ // if ( sinuFace._sinuEdges.size() > 2 )
+ // return error(COMPERR_BAD_SHAPE, "Not yet supported case" );
+
+ double minSegLen = getMinSegLen( helper, sinuFace._sinuEdges );
+ SMESH_MAT2d::MedialAxis ma( F, sinuFace._sinuEdges, minSegLen, /*ignoreCorners=*/true );
if ( !_regular1D )
_regular1D = new Algo1D( _studyId, _gen );
_regular1D->SetSegmentLength( minSegLen );
vector<double> maParams;
- if ( ! divideMA( helper, ma, sinuEdges, sinuSide[0].size(), _regular1D, maParams ))
+ if ( ! divideMA( helper, ma, sinuFace, _regular1D, minSegLen, maParams ))
return error(COMPERR_BAD_SHAPE);
- if ( !computeShortEdges( helper, shortSide[0], _regular1D ) ||
- !computeShortEdges( helper, shortSide[1], _regular1D ))
+ _progress = 0.4;
+
+ if ( !computeShortEdges( helper, sinuFace._shortSide[0], _regular1D ) ||
+ !computeShortEdges( helper, sinuFace._shortSide[1], _regular1D ))
return error("Failed to mesh short edges");
- if ( !computeSinuEdges( helper, ma, maParams, sinuEdges, sinuSide[0].size() ))
+ _progress = 0.6;
+
+ if ( !computeSinuEdges( helper, minSegLen, ma, maParams, sinuFace ))
return error("Failed to mesh sinuous edges");
- return computeQuads( helper, F, sinuSide, shortSide );
+ _progress = 0.8;
+
+ bool ok = computeQuads( helper, F, sinuFace._sinuSide, sinuFace._shortSide );
+
+ if ( ok )
+ mergeNodes( helper, sinuFace );
+
+ _progress = 1.;
+
+ return ok;
}
return error(COMPERR_BAD_SHAPE, "Not implemented so far");