-// Copyright (C) 2007-2015 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
#include "SMDS_FacePosition.hxx"
#include "SMDS_MeshElement.hxx"
#include "SMDS_MeshNode.hxx"
+#include "SMESHDS_Mesh.hxx"
#include "SMESH_Block.hxx"
#include "SMESH_Comment.hxx"
#include "SMESH_Gen.hxx"
#include <Geom_Surface.hxx>
#include <NCollection_DefineArray2.hxx>
#include <Precision.hxx>
-#include <Quantity_Parameter.hxx>
#include <TColStd_SequenceOfInteger.hxx>
#include <TColStd_SequenceOfReal.hxx>
#include <TColgp_SequenceOfXY.hxx>
#include "utilities.h"
#include "Utils_ExceptHandlers.hxx"
-#ifndef StdMeshers_Array2OfNode_HeaderFile
-#define StdMeshers_Array2OfNode_HeaderFile
-typedef const SMDS_MeshNode* SMDS_MeshNodePtr;
-typedef NCollection_Array2<SMDS_MeshNodePtr> StdMeshers_Array2OfNode;
-#endif
+#include <boost/container/flat_set.hpp>
+#include <boost/intrusive/circular_list_algorithms.hpp>
-using namespace std;
+typedef NCollection_Array2<const SMDS_MeshNode*> StdMeshers_Array2OfNode;
-typedef gp_XY gp_UV;
+typedef gp_XY gp_UV;
typedef SMESH_Comment TComm;
+using namespace std;
+
//=============================================================================
/*!
*
myQuadType(QUAD_STANDARD),
myHelper( NULL )
{
- MESSAGE("StdMeshers_Quadrangle_2D::StdMeshers_Quadrangle_2D");
_name = "Quadrangle_2D";
_shapeType = (1 << TopAbs_FACE);
_compatibleHypothesis.push_back("QuadrangleParams");
StdMeshers_Quadrangle_2D::~StdMeshers_Quadrangle_2D()
{
- MESSAGE("StdMeshers_Quadrangle_2D::~StdMeshers_Quadrangle_2D");
}
//=============================================================================
}
else if (strcmp("TrianglePreference", aHyp->GetName()) == 0){
isFirstParams = false;
- myTrianglePreference = true;
+ myTrianglePreference = true;
}
else {
isFirstParams = false;
if (isFirstParams) {
if (strcmp("QuadranglePreference", aHyp->GetName()) == 0) {
myQuadranglePreference = true;
- myTrianglePreference = false;
+ myTrianglePreference = false;
myQuadType = QUAD_STANDARD;
}
else if (strcmp("TrianglePreference", aHyp->GetName()) == 0){
myQuadranglePreference = false;
- myTrianglePreference = true;
+ myTrianglePreference = true;
myQuadType = QUAD_STANDARD;
}
}
- else {
- const StdMeshers_QuadrangleParams* aHyp2 =
- (const StdMeshers_QuadrangleParams*)aHyp;
+ else if (const StdMeshers_QuadrangleParams* aHyp2 =
+ dynamic_cast<const StdMeshers_QuadrangleParams*>( aHyp ))
+ {
myTriaVertexID = aHyp2->GetTriaVertex();
if (!myQuadranglePreference && !myTrianglePreference) { // priority of hypos
//=============================================================================
/*!
- *
+ *
*/
//=============================================================================
myNeedSmooth = false;
myCheckOri = false;
- FaceQuadStruct::Ptr quad = CheckNbEdges( aMesh, F, /*considerMesh=*/true );
+ FaceQuadStruct::Ptr quad = CheckNbEdges( aMesh, F, /*considerMesh=*/true, myHelper );
if (!quad)
return false;
myQuadList.clear();
int nbright = (int) uv_e1.size();
int nbleft = (int) uv_e3.size();
- if (quad->nbNodeOut(0) && nbvertic == 2) // this should not occure
+ if (quad->nbNodeOut(0) && nbvertic == 2) // this should not occur
{
// Down edge is out
//
// for each node of the down edge find nearest node
// in the first row of the regular grid and link them
for (i = 0; i < stop; i++) {
- const SMDS_MeshNode *a, *b, *c, *d;
+ const SMDS_MeshNode *a, *b, *c=0, *d;
a = uv_e0[i].node;
b = uv_e0[i + 1].node;
gp_Pnt pb (b->X(), b->Y(), b->Z());
}
else {
// find in the grid node c, nearest to the b
+ c = 0;
double mind = RealLast();
for (int k = g; k <= iup; k++) {
int stop = 0;
if ( quad->side[3].grid->Edge(0).IsNull() ) // left side is simulated one
{
- // quad divided at I but not at J, as nbvertic==nbright==2
- stop++; // we stop at a second node
+ if ( nbright == 2 ) // quad divided at I but not at J (2D_mesh_QuadranglePreference_01/B1)
+ stop++; // we stop at a second node
}
else
{
}
// for each node of the up edge find nearest node
// in the first row of the regular grid and link them
- for ( ; i > stop; i--) {
+ for ( ; i > stop; i--)
+ {
a = uv_e2[i].node;
b = uv_e2[i - 1].node;
gp_Pnt pb = SMESH_TNodeXYZ( b );
}
// right or left boundary quadrangles
- if (quad->nbNodeOut( QUAD_RIGHT_SIDE ) && nbhoriz == 2) // this should not occure
+ if (quad->nbNodeOut( QUAD_RIGHT_SIDE ) && nbhoriz == 2) // this should not occur
{
int g = 0; // last processed node in the grid
int stop = nbright - 1;
gp_Pnt pb (b->X(), b->Y(), b->Z());
// find node c in the grid, nearest to the b
+ c = 0;
int near = g;
- if (i == stop - 1) { // up bondary reached
+ if (i == stop - 1) { // up boundary reached
c = quad->uv_grid[nbhoriz*(jup + 1) - 2].node;
near = jup;
} else {
}
}
} else {
- if (quad->nbNodeOut(3) && nbhoriz == 2) {
-// MESSAGE("left edge is out");
+ if (quad->nbNodeOut(3) && nbhoriz == 2)
+ {
int g = nbvertic - 1; // last processed node in the grid
int stop = 0;
i = quad->side[ QUAD_LEFT_SIDE ].to-1; // nbleft - 1;
// find node c in the grid, nearest to the b
int near = g;
- if (i == stop + 1) { // down bondary reached
+ if (i == stop + 1) { // down boundary reached
c = quad->uv_grid[nbhoriz*jlow + 1].node;
near = jlow;
}
continue;
}
- int nbNoDegenEdges = 0;
+ int nbNoDegenEdges = 0, totalNbEdges = 0;
TopExp_Explorer eExp( aFace, TopAbs_EDGE );
- for ( ; eExp.More() && nbNoDegenEdges < 3; eExp.Next() ) {
+ for ( ; eExp.More() && nbNoDegenEdges < 3; eExp.Next(), ++totalNbEdges ) {
if ( !SMESH_Algo::isDegenerated( TopoDS::Edge( eExp.Current() )))
++nbNoDegenEdges;
}
- if ( toCheckAll && nbNoDegenEdges < 3 ) return false;
- if ( !toCheckAll && nbNoDegenEdges >= 3 ) return true;
+ if ( toCheckAll && ( totalNbEdges < 4 && nbNoDegenEdges < 3 )) return false;
+ if ( !toCheckAll && ( totalNbEdges >= 4 || nbNoDegenEdges >= 3 )) return true;
}
return ( toCheckAll && nbFoundFaces != 0 );
}
+namespace
+{
+ //================================================================================
+ /*!
+ * \brief Return true if only two given edges meat at their common vertex
+ */
+ //================================================================================
+
+ bool twoEdgesMeatAtVertex(const TopoDS_Edge& e1,
+ const TopoDS_Edge& e2,
+ SMESH_Mesh & mesh)
+ {
+ TopoDS_Vertex v;
+ if (!TopExp::CommonVertex(e1, e2, v))
+ return false;
+ TopTools_ListIteratorOfListOfShape ancestIt(mesh.GetAncestors(v));
+ for (; ancestIt.More() ; ancestIt.Next())
+ if (ancestIt.Value().ShapeType() == TopAbs_EDGE)
+ if (!e1.IsSame(ancestIt.Value()) && !e2.IsSame(ancestIt.Value()))
+ return false;
+ return true;
+ }
+
+ //--------------------------------------------------------------------------------
+ /*!
+ * \brief EDGE of a FACE
+ */
+ struct Edge
+ {
+ TopoDS_Edge myEdge;
+ TopoDS_Vertex my1stVertex;
+ int myIndex;
+ double myAngle; // angle at my1stVertex
+ int myNbSegments; // discretization
+ Edge* myPrev; // preceding EDGE
+ Edge* myNext; // next EDGE
+
+ // traits used by boost::intrusive::circular_list_algorithms
+ typedef Edge node;
+ typedef Edge * node_ptr;
+ typedef const Edge * const_node_ptr;
+ static node_ptr get_next(const_node_ptr n) { return n->myNext; }
+ static void set_next(node_ptr n, node_ptr next) { n->myNext = next; }
+ static node_ptr get_previous(const_node_ptr n) { return n->myPrev; }
+ static void set_previous(node_ptr n, node_ptr prev){ n->myPrev = prev; }
+ };
+
+ //--------------------------------------------------------------------------------
+ /*!
+ * \brief Four sides of a quadrangle evaluating its quality
+ */
+ struct QuadQuality
+ {
+ typedef std::set< QuadQuality, QuadQuality > set;
+
+ Edge* myCornerE[4];
+ int myNbSeg [4];
+
+ // quality criteria to minimize
+ int myOppDiff;
+ double myQuartDiff;
+ double mySumAngle;
+
+ // Compute quality criateria and add self to the set of variants
+ //
+ void AddSelf( QuadQuality::set& theVariants )
+ {
+ if ( myCornerE[2] == myCornerE[1] || // exclude invalid variants
+ myCornerE[2] == myCornerE[3] ||
+ myCornerE[0] == myCornerE[3] )
+ return;
+
+ // count nb segments between corners
+ mySumAngle = 0;
+ double totNbSeg = 0;
+ for ( int i1 = 3, i2 = 0; i2 < 4; i1 = i2++ )
+ {
+ myNbSeg[ i1 ] = 0;
+ for ( Edge* e = myCornerE[ i1 ]; e != myCornerE[ i2 ]; e = e->myNext )
+ myNbSeg[ i1 ] += e->myNbSegments;
+ mySumAngle -= myCornerE[ i1 ]->myAngle / M_PI; // [-1,1]
+ totNbSeg += myNbSeg[ i1 ];
+ }
+
+ myOppDiff = ( Abs( myNbSeg[0] - myNbSeg[2] ) +
+ Abs( myNbSeg[1] - myNbSeg[3] ));
+
+ double nbSideIdeal = totNbSeg / 4.;
+ myQuartDiff = -( Min( Min( myNbSeg[0], myNbSeg[1] ),
+ Min( myNbSeg[2], myNbSeg[3] )) / nbSideIdeal );
+
+ theVariants.insert( *this );
+
+#ifndef _DEBUG_
+ if ( theVariants.size() > 1 ) // erase a worse variant
+ theVariants.erase( ++theVariants.begin() );
+#endif
+ };
+
+ // first criterion - equality of nbSeg of opposite sides
+ int crit1() const { return myOppDiff; }
+
+ // second criterion - equality of nbSeg of adjacent sides and sharpness of angles
+ double crit2() const { return myQuartDiff + mySumAngle; }
+
+ bool operator () ( const QuadQuality& q1, const QuadQuality& q2) const
+ {
+ if ( q1.crit1() < q2.crit1() )
+ return true;
+ if ( q1.crit1() > q2.crit1() )
+ return false;
+ return q1.crit2() < q2.crit2();
+ }
+ };
+
+ //================================================================================
+ /*!
+ * \brief Unite EDGEs to get a required number of sides
+ * \param [in] theNbCorners - the required number of sides
+ * \param [in] theConsiderMesh - to considered only meshed VERTEXes
+ * \param [in] theFaceSide - the FACE EDGEs
+ * \param [out] theVertices - the found corner vertices
+ */
+ //================================================================================
+
+ void uniteEdges( const int theNbCorners,
+ const bool theConsiderMesh,
+ const StdMeshers_FaceSide& theFaceSide,
+ const TopoDS_Shape& theBaseVertex,
+ std::vector<TopoDS_Vertex>& theVertices,
+ bool& theHaveConcaveVertices)
+ {
+ // form a circular list of EDGEs
+ std::vector< Edge > edges( theFaceSide.NbEdges() );
+ boost::intrusive::circular_list_algorithms< Edge > circularList;
+ circularList.init_header( &edges[0] );
+ edges[0].myEdge = theFaceSide.Edge( 0 );
+ edges[0].myIndex = 0;
+ edges[0].myNbSegments = 0;
+ for ( int i = 1; i < theFaceSide.NbEdges(); ++i )
+ {
+ edges[ i ].myEdge = theFaceSide.Edge( i );
+ edges[ i ].myIndex = i;
+ edges[ i ].myNbSegments = 0;
+ circularList.link_after( &edges[ i-1 ], &edges[ i ] );
+ }
+ // remove degenerated edges
+ int nbEdges = edges.size();
+ Edge* edge0 = &edges[0];
+ for ( size_t i = 0; i < edges.size(); ++i )
+ if ( SMESH_Algo::isDegenerated( edges[i].myEdge ))
+ {
+ edge0 = circularList.unlink( &edges[i] );
+ --nbEdges;
+ }
+
+ // sort edges by angle
+ std::multimap< double, Edge* > edgeByAngle;
+ int i, iBase = -1, nbConvexAngles = 0, nbSharpAngles = 0;
+ const double angTol = 5. / 180 * M_PI;
+ const double sharpAngle = 0.5 * M_PI - angTol;
+ Edge* e = edge0;
+ for ( i = 0; i < nbEdges; ++i, e = e->myNext )
+ {
+ e->my1stVertex = SMESH_MesherHelper::IthVertex( 0, e->myEdge );
+ if ( e->my1stVertex.IsSame( theBaseVertex ))
+ iBase = e->myIndex;
+
+ e->myAngle = -2 * M_PI;
+ if ( !theConsiderMesh || theFaceSide.VertexNode( e->myIndex ))
+ {
+ e->myAngle = SMESH_MesherHelper::GetAngle( e->myPrev->myEdge, e->myEdge,
+ theFaceSide.Face(), e->my1stVertex );
+ if ( e->myAngle > 2 * M_PI ) // GetAngle() failed
+ e->myAngle *= -1.;
+ }
+ edgeByAngle.insert( std::make_pair( e->myAngle, e ));
+ nbConvexAngles += ( e->myAngle > angTol );
+ nbSharpAngles += ( e->myAngle > sharpAngle );
+ }
+
+ theHaveConcaveVertices = ( nbConvexAngles < nbEdges );
+
+ if ((int) theVertices.size() == theNbCorners )
+ return;
+
+ theVertices.clear();
+
+ if ( !theConsiderMesh || theNbCorners < 4 ||
+ nbConvexAngles <= theNbCorners ||
+ nbSharpAngles == theNbCorners )
+ {
+ if ( nbEdges == theNbCorners ) // return all vertices
+ {
+ for ( e = edge0; (int) theVertices.size() < theNbCorners; e = e->myNext )
+ theVertices.push_back( e->my1stVertex );
+ return;
+ }
+
+ // return corners with maximal angles
+
+ std::set< int > cornerIndices;
+ if ( iBase != -1 )
+ cornerIndices.insert( iBase );
+
+ std::multimap< double, Edge* >::reverse_iterator a2e = edgeByAngle.rbegin();
+ for (; (int) cornerIndices.size() < theNbCorners; ++a2e )
+ cornerIndices.insert( a2e->second->myIndex );
+
+ std::set< int >::iterator i = cornerIndices.begin();
+ for ( ; i != cornerIndices.end(); ++i )
+ theVertices.push_back( edges[ *i ].my1stVertex );
+
+ return;
+ }
+
+ // get nb of segments
+ int totNbSeg = 0; // tatal nb segments
+ std::vector<const SMDS_MeshNode*> nodes;
+ for ( i = 0, e = edge0; i < nbEdges; ++i, e = e->myNext )
+ {
+ nodes.clear();
+ theFaceSide.GetEdgeNodes( e->myIndex, nodes, /*addVertex=*/true, true );
+ if ( nodes.size() == 2 && nodes[0] == nodes[1] ) // all nodes merged
+ {
+ e->myAngle = -1; // to remove
+ }
+ else
+ {
+ e->myNbSegments += nodes.size() - 1;
+ totNbSeg += nodes.size() - 1;
+ }
+
+ // join with the previous edge those edges with concave angles
+ if ( e->myAngle <= 0 )
+ {
+ e->myPrev->myNbSegments += e->myNbSegments;
+ e = circularList.unlink( e )->myPrev;
+ --nbEdges;
+ --i;
+ }
+ }
+
+ if ( edge0->myNext->myPrev != edge0 ) // edge0 removed, find another edge0
+ for ( size_t i = 0; i < edges.size(); ++i )
+ if ( edges[i].myNext->myPrev == & edges[i] )
+ {
+ edge0 = &edges[i];
+ break;
+ }
+
+
+ // sort different variants by quality
+
+ QuadQuality::set quadVariants;
+
+ // find index of a corner most opposite to corner of edge0
+ int iOpposite0, nbHalf = 0;
+ for ( e = edge0; nbHalf <= totNbSeg / 2; e = e->myNext )
+ nbHalf += e->myNbSegments;
+ iOpposite0 = e->myIndex;
+
+ // compose different variants of quadrangles
+ QuadQuality quad;
+ for ( ; edge0->myIndex != iOpposite0; edge0 = edge0->myNext )
+ {
+ quad.myCornerE[ 0 ] = edge0;
+
+ // find opposite corner 2
+ for ( nbHalf = 0, e = edge0; nbHalf < totNbSeg / 2; e = e->myNext )
+ nbHalf += e->myNbSegments;
+ if ( e == edge0->myNext ) // no space for corner 1
+ e = e->myNext;
+ quad.myCornerE[ 2 ] = e;
+
+ bool moreVariants2 = ( totNbSeg % 2 || nbHalf != totNbSeg / 2 );
+
+ // enumerate different variants of corners 1 and 3
+ for ( Edge* e1 = edge0->myNext; e1 != quad.myCornerE[ 2 ]; e1 = e1->myNext )
+ {
+ quad.myCornerE[ 1 ] = e1;
+
+ // find opposite corner 3
+ for ( nbHalf = 0, e = e1; nbHalf < totNbSeg / 2; e = e->myNext )
+ nbHalf += e->myNbSegments;
+ if ( e == quad.myCornerE[ 2 ] )
+ e = e->myNext;
+ quad.myCornerE[ 3 ] = e;
+
+ bool moreVariants3 = ( totNbSeg % 2 || nbHalf != totNbSeg / 2 );
+
+ quad.AddSelf( quadVariants );
+
+ // another variants
+ if ( moreVariants2 )
+ {
+ quad.myCornerE[ 2 ] = quad.myCornerE[ 2 ]->myPrev;
+ quad.AddSelf( quadVariants );
+ quad.myCornerE[ 2 ] = quad.myCornerE[ 2 ]->myNext;
+ }
+ if ( moreVariants3 )
+ {
+ quad.myCornerE[ 3 ] = quad.myCornerE[ 3 ]->myPrev;
+ quad.AddSelf( quadVariants );
+
+ if ( moreVariants2 )
+ {
+ quad.myCornerE[ 2 ] = quad.myCornerE[ 2 ]->myPrev;
+ quad.AddSelf( quadVariants );
+ quad.myCornerE[ 2 ] = quad.myCornerE[ 2 ]->myNext;
+ }
+ }
+ }
+ }
+
+ const QuadQuality& bestQuad = *quadVariants.begin();
+ theVertices.resize( 4 );
+ theVertices[ 0 ] = bestQuad.myCornerE[ 0 ]->my1stVertex;
+ theVertices[ 1 ] = bestQuad.myCornerE[ 1 ]->my1stVertex;
+ theVertices[ 2 ] = bestQuad.myCornerE[ 2 ]->my1stVertex;
+ theVertices[ 3 ] = bestQuad.myCornerE[ 3 ]->my1stVertex;
+
+ return;
+ }
+
+} // namespace
+
//================================================================================
/*!
- * \brief Return true if only two given edges meat at their common vertex
+ * \brief Finds vertices at the most sharp face corners
+ * \param [in] theFace - the FACE
+ * \param [in,out] theWire - the ordered edges of the face. It can be modified to
+ * have the first VERTEX of the first EDGE in \a vertices
+ * \param [out] theVertices - the found corner vertices in the order corresponding to
+ * the order of EDGEs in \a theWire
+ * \param [out] theNbDegenEdges - nb of degenerated EDGEs in theFace
+ * \param [in] theConsiderMesh - if \c true, only meshed VERTEXes are considered
+ * as possible corners
+ * \return int - number of quad sides found: 0, 3 or 4
*/
//================================================================================
-static bool twoEdgesMeatAtVertex(const TopoDS_Edge& e1,
- const TopoDS_Edge& e2,
- SMESH_Mesh & mesh)
+int StdMeshers_Quadrangle_2D::getCorners(const TopoDS_Face& theFace,
+ SMESH_Mesh & theMesh,
+ std::list<TopoDS_Edge>& theWire,
+ std::vector<TopoDS_Vertex>& theVertices,
+ int & theNbDegenEdges,
+ const bool theConsiderMesh)
{
- TopoDS_Vertex v;
- if (!TopExp::CommonVertex(e1, e2, v))
- return false;
- TopTools_ListIteratorOfListOfShape ancestIt(mesh.GetAncestors(v));
- for (; ancestIt.More() ; ancestIt.Next())
- if (ancestIt.Value().ShapeType() == TopAbs_EDGE)
- if (!e1.IsSame(ancestIt.Value()) && !e2.IsSame(ancestIt.Value()))
- return false;
- return true;
+ theNbDegenEdges = 0;
+
+ SMESH_MesherHelper helper( theMesh );
+ if ( myHelper )
+ helper.CopySubShapeInfo( *myHelper );
+
+ StdMeshers_FaceSide faceSide( theFace, theWire, &theMesh,
+ /*isFwd=*/true, /*skipMedium=*/true, &helper );
+
+ // count degenerated EDGEs and possible corner VERTEXes
+ for ( int iE = 0; iE < faceSide.NbEdges(); ++iE )
+ {
+ if ( SMESH_Algo::isDegenerated( faceSide.Edge( iE )))
+ ++theNbDegenEdges;
+ else if ( !theConsiderMesh || faceSide.VertexNode( iE ))
+ theVertices.push_back( faceSide.FirstVertex( iE ));
+ }
+
+ // find out required nb of corners (3 or 4)
+ int nbCorners = 4;
+ TopoDS_Shape triaVertex = helper.GetMeshDS()->IndexToShape( myTriaVertexID );
+ if ( !triaVertex.IsNull() &&
+ triaVertex.ShapeType() == TopAbs_VERTEX &&
+ helper.IsSubShape( triaVertex, theFace ) &&
+ theVertices.size() != 4 )
+ nbCorners = 3;
+ else
+ triaVertex.Nullify();
+
+ // check nb of available EDGEs
+ if ( faceSide.NbEdges() < nbCorners )
+ return error(COMPERR_BAD_SHAPE,
+ TComm("Face must have 4 sides but not ") << faceSide.NbEdges() );
+
+ if ( theConsiderMesh )
+ {
+ const int nbSegments = Max( faceSide.NbPoints()-1, faceSide.NbSegments() );
+ if ( nbSegments < nbCorners )
+ return error(COMPERR_BAD_INPUT_MESH, TComm("Too few boundary nodes: ") << nbSegments);
+ }
+
+ if ( nbCorners == 3 )
+ {
+ if ( theVertices.size() < 3 )
+ return error(COMPERR_BAD_SHAPE,
+ TComm("Face must have 3 meshed sides but not ") << theVertices.size() );
+ }
+ else // triaVertex not defined or invalid
+ {
+ if ( theVertices.size() == 3 && theNbDegenEdges == 0 )
+ {
+ if ( myTriaVertexID < 1 )
+ return error(COMPERR_BAD_PARMETERS,
+ "No Base vertex provided for a trilateral geometrical face");
+
+ TComm comment("Invalid Base vertex: ");
+ comment << myTriaVertexID << ", which is not in [ ";
+ comment << helper.GetMeshDS()->ShapeToIndex( faceSide.FirstVertex(0) ) << ", ";
+ comment << helper.GetMeshDS()->ShapeToIndex( faceSide.FirstVertex(1) ) << ", ";
+ comment << helper.GetMeshDS()->ShapeToIndex( faceSide.FirstVertex(2) ) << " ]";
+ return error(COMPERR_BAD_PARMETERS, comment );
+ }
+ if ( theVertices.size() + theNbDegenEdges < 4 )
+ return error(COMPERR_BAD_SHAPE,
+ TComm("Face must have 4 meshed sides but not ") << theVertices.size() );
+ }
+
+ myCheckOri = false;
+ if ( theVertices.size() > 3 )
+ {
+ uniteEdges( nbCorners, theConsiderMesh, faceSide, triaVertex, theVertices, myCheckOri );
+ }
+
+ if ( nbCorners == 3 && !triaVertex.IsSame( theVertices[0] ))
+ {
+ // make theVertices begin from triaVertex
+ for ( size_t i = 0; i < theVertices.size(); ++i )
+ if ( triaVertex.IsSame( theVertices[i] ))
+ {
+ theVertices.erase( theVertices.begin(), theVertices.begin() + i );
+ break;
+ }
+ else
+ {
+ theVertices.push_back( theVertices[i] );
+ }
+ }
+
+ // make theWire begin from the 1st corner vertex
+ while ( !theVertices[0].IsSame( helper.IthVertex( 0, theWire.front() )) ||
+ SMESH_Algo::isDegenerated( theWire.front() ))
+ theWire.splice( theWire.end(), theWire, theWire.begin() );
+
+ return nbCorners;
}
//=============================================================================
/*!
- *
+ *
*/
//=============================================================================
FaceQuadStruct::Ptr StdMeshers_Quadrangle_2D::CheckNbEdges(SMESH_Mesh & aMesh,
const TopoDS_Shape & aShape,
- const bool considerMesh)
+ const bool considerMesh,
+ SMESH_MesherHelper* aFaceHelper)
{
if ( !myQuadList.empty() && myQuadList.front()->face.IsSame( aShape ))
return myQuadList.front();
}
// find corner vertices of the quad
+ myHelper = ( aFaceHelper && aFaceHelper->GetSubShape() == aShape ) ? aFaceHelper : NULL;
vector<TopoDS_Vertex> corners;
int nbDegenEdges, nbSides = getCorners( F, aMesh, edges, corners, nbDegenEdges, considerMesh );
if ( nbSides == 0 )
sideEdges.push_back( *edgeIt++ );
if ( !sideEdges.empty() )
quad->side.push_back( StdMeshers_FaceSide::New(F, sideEdges, &aMesh, iSide < QUAD_TOP_SIDE,
- ignoreMediumNodes, myProxyMesh));
+ ignoreMediumNodes, myHelper, myProxyMesh));
else
--iSide;
}
}
}
}
- else
+ else //if ( !myHelper || !myHelper->IsRealSeam( edge ))
{
sideEdges.push_back( edge );
}
{
quad->side.push_back
( StdMeshers_FaceSide::New( F, sideEdges, &aMesh, iSide < QUAD_TOP_SIDE,
- ignoreMediumNodes, myProxyMesh ));
+ ignoreMediumNodes, myHelper, myProxyMesh ));
++iSide;
}
if ( quad->side.size() == 4 )
//=======================================================================
//function : ShiftQuad
-//purpose : auxilary function for computeQuadPref
+//purpose : auxiliary function for computeQuadPref
//=======================================================================
void StdMeshers_Quadrangle_2D::shiftQuad(FaceQuadStruct::Ptr& quad, const int num )
//=======================================================================
//function : calcUV
-//purpose : auxilary function for computeQuadPref
+//purpose : auxiliary function for computeQuadPref
//=======================================================================
static gp_UV calcUV(double x0, double x1, double y0, double y1,
//=======================================================================
//function : calcUV2
-//purpose : auxilary function for computeQuadPref
+//purpose : auxiliary function for computeQuadPref
//=======================================================================
static gp_UV calcUV2(double x, double y,
// | | | |
// | |C | |
// | L | | R |
- // left | |__| | rigth
+ // left | |__| | right
// | / \ |
// | / C \ |
// |/ \|
// | |__| |
// | / \ |
// | / C \ |
- // left |/________\| rigth
+ // left |/________\| right
// | |
// | C |
// | |
// 0 bottom 1
- const int bfrom = quad->side[0].from;
- const int rfrom = quad->side[1].from;
+ //const int bfrom = quad->side[0].from;
+ //const int rfrom = quad->side[1].from;
const int tfrom = quad->side[2].from;
- const int lfrom = quad->side[3].from;
+ //const int lfrom = quad->side[3].from;
{
const vector<UVPtStruct>& uv_eb_vec = quad->side[0].GetUVPtStruct(true,0);
const vector<UVPtStruct>& uv_er_vec = quad->side[1].GetUVPtStruct(false,1);
} // if ( dv != 0 && dh != 0 )
- const int db = quad->side[0].IsReversed() ? -1 : +1;
- const int dr = quad->side[1].IsReversed() ? -1 : +1;
+ //const int db = quad->side[0].IsReversed() ? -1 : +1;
+ //const int dr = quad->side[1].IsReversed() ? -1 : +1;
const int dt = quad->side[2].IsReversed() ? -1 : +1;
- const int dl = quad->side[3].IsReversed() ? -1 : +1;
+ //const int dl = quad->side[3].IsReversed() ? -1 : +1;
// Case dv == 0, here possibly myQuadList.size() > 1
//
npl.Append(uv_el[i].normParam);
}
- int dl,dr;
+ int dl = 0, dr = 0;
if (OldVersion) {
// add some params to right and left after the first param
// insert to right
}
int nnn = Min(nr,nl);
- // auxilary sequence of XY for creation nodes
+ // auxiliary sequence of XY for creation nodes
// in the bottom part of central domain
// Length of UVL and UVR must be == nbv-nnn
TColgp_SequenceOfXY UVL, UVR, UVT;
TColgp_SequenceOfXY UVtmp;
double drparam = npr.Value(nr) - npr.Value(nnn-1);
double dlparam = npl.Value(nnn) - npl.Value(nnn-1);
- double y0,y1;
+ double y0 = 0, y1 = 0;
for (i=1; i<=drl; i++) {
// add existed nodes from right edge
NodesC.SetValue(nb,i+1,uv_er[nnn+i-2].node);
MapShapeNbElems& aResMap,
bool IsQuadratic)
{
- // Auxilary key in order to keep old variant
+ // Auxiliary key in order to keep old variant
// of meshing after implementation new variant
// for bug 0016220 from Mantis.
bool OldVersion = false;
const vector<UVPtStruct>& uv_et = quad->side[2].GetUVPtStruct(true,1);
const vector<UVPtStruct>& uv_el = quad->side[3].GetUVPtStruct(false,0);
- if (uv_eb.size() != nb || uv_er.size() != nr || uv_et.size() != nt || uv_el.size() != nl)
+ if ((int) uv_eb.size() != nb || (int) uv_er.size() != nr ||
+ (int) uv_et.size() != nt || (int) uv_el.size() != nl)
return error(COMPERR_BAD_INPUT_MESH);
// arrays for normalized params
// | | | |
// | | | |
// | L | | R |
- // left | | | | rigth
+ // left | | | | right
// | / \ |
// | / C \ |
// |/ \|
gp_XY a3 (uv_et.front().u, uv_et.front().v);
int nnn = Min(nr,nl);
- // auxilary sequence of XY for creation of nodes
+ // auxiliary sequence of XY for creation of nodes
// in the bottom part of central domain
// it's length must be == nbv-nnn-1
TColgp_SequenceOfXY UVL;
const vector<UVPtStruct>& uv_et = quad->side[2].GetUVPtStruct(true,1);
const vector<UVPtStruct>& uv_el = quad->side[3].GetUVPtStruct(false,0);
- if (uv_eb.size() != nb || uv_er.size() != nr || uv_et.size() != nt || uv_el.size() != nl)
+ if ((int) uv_eb.size() != nb || (int) uv_er.size() != nr ||
+ (int) uv_et.size() != nt || (int) uv_el.size() != nl)
return error(COMPERR_BAD_INPUT_MESH);
gp_UV uv[ UV_SIZE ];
vector<UVPtStruct> curr_base = uv_eb, next_base;
- UVPtStruct nullUVPtStruct; nullUVPtStruct.node = 0;
+ UVPtStruct nullUVPtStruct;
+ nullUVPtStruct.node = 0;
+ nullUVPtStruct.x = nullUVPtStruct.y = nullUVPtStruct.u = nullUVPtStruct.v = 0;
+ nullUVPtStruct.param = 0;
+
int curr_base_len = nb;
int next_base_len = 0;
{
// "smooth" by computing node positions using 3D TFI and further projection
- int nbhoriz = quad->iSize;
- int nbvertic = quad->jSize;
+ list< FaceQuadStruct::Ptr >::iterator q = myQuadList.begin();
+ for ( ; q != myQuadList.end() ; ++q )
+ {
+ quad = *q;
+ int nbhoriz = quad->iSize;
+ int nbvertic = quad->jSize;
- SMESH_TNodeXYZ a0( quad->UVPt( 0, 0 ).node );
- SMESH_TNodeXYZ a1( quad->UVPt( nbhoriz-1, 0 ).node );
- SMESH_TNodeXYZ a2( quad->UVPt( nbhoriz-1, nbvertic-1 ).node );
- SMESH_TNodeXYZ a3( quad->UVPt( 0, nbvertic-1 ).node );
+ SMESH_TNodeXYZ a0( quad->UVPt( 0, 0 ).node );
+ SMESH_TNodeXYZ a1( quad->UVPt( nbhoriz-1, 0 ).node );
+ SMESH_TNodeXYZ a2( quad->UVPt( nbhoriz-1, nbvertic-1 ).node );
+ SMESH_TNodeXYZ a3( quad->UVPt( 0, nbvertic-1 ).node );
- for (int i = 1; i < nbhoriz-1; i++)
- {
- SMESH_TNodeXYZ p0( quad->UVPt( i, 0 ).node );
- SMESH_TNodeXYZ p2( quad->UVPt( i, nbvertic-1 ).node );
- for (int j = 1; j < nbvertic-1; j++)
+ for (int i = 1; i < nbhoriz-1; i++)
{
- SMESH_TNodeXYZ p1( quad->UVPt( nbhoriz-1, j ).node );
- SMESH_TNodeXYZ p3( quad->UVPt( 0, j ).node );
+ SMESH_TNodeXYZ p0( quad->UVPt( i, 0 ).node );
+ SMESH_TNodeXYZ p2( quad->UVPt( i, nbvertic-1 ).node );
+ for (int j = 1; j < nbvertic-1; j++)
+ {
+ SMESH_TNodeXYZ p1( quad->UVPt( nbhoriz-1, j ).node );
+ SMESH_TNodeXYZ p3( quad->UVPt( 0, j ).node );
- UVPtStruct& uvp = quad->UVPt( i, j );
+ UVPtStruct& uvp = quad->UVPt( i, j );
- gp_Pnt p = myHelper->calcTFI(uvp.x,uvp.y, a0,a1,a2,a3, p0,p1,p2,p3);
- gp_Pnt2d uv = surface->NextValueOfUV( uvp.UV(), p, 10*tol );
- gp_Pnt pnew = surface->Value( uv );
+ gp_Pnt p = myHelper->calcTFI(uvp.x,uvp.y, a0,a1,a2,a3, p0,p1,p2,p3);
+ gp_Pnt2d uv = surface->NextValueOfUV( uvp.UV(), p, 10*tol );
+ gp_Pnt pnew = surface->Value( uv );
- meshDS->MoveNode( uvp.node, pnew.X(), pnew.Y(), pnew.Z() );
- uvp.u = uv.X();
- uvp.v = uv.Y();
+ meshDS->MoveNode( uvp.node, pnew.X(), pnew.Y(), pnew.Z() );
+ uvp.u = uv.X();
+ uvp.v = uv.Y();
+ }
}
}
- return;
}
+ else
+ {
+ // Get nodes to smooth
- // Get nodes to smooth
-
- typedef map< const SMDS_MeshNode*, TSmoothNode, TIDCompare > TNo2SmooNoMap;
- TNo2SmooNoMap smooNoMap;
+ typedef map< const SMDS_MeshNode*, TSmoothNode, TIDCompare > TNo2SmooNoMap;
+ TNo2SmooNoMap smooNoMap;
- // fixed nodes
- set< const SMDS_MeshNode* > fixedNodes;
- for ( size_t i = 0; i < myForcedPnts.size(); ++i )
- {
- fixedNodes.insert( myForcedPnts[i].node );
- if ( myForcedPnts[i].node->getshapeId() != myHelper->GetSubShapeID() )
+ // fixed nodes
+ boost::container::flat_set< const SMDS_MeshNode* > fixedNodes;
+ for ( size_t i = 0; i < myForcedPnts.size(); ++i )
{
- TSmoothNode & sNode = smooNoMap[ myForcedPnts[i].node ];
- sNode._uv = myForcedPnts[i].uv;
- sNode._xyz = SMESH_TNodeXYZ( myForcedPnts[i].node );
+ fixedNodes.insert( myForcedPnts[i].node );
+ if ( myForcedPnts[i].node->getshapeId() != myHelper->GetSubShapeID() )
+ {
+ TSmoothNode & sNode = smooNoMap[ myForcedPnts[i].node ];
+ sNode._uv = myForcedPnts[i].uv;
+ sNode._xyz = SMESH_TNodeXYZ( myForcedPnts[i].node );
+ }
}
- }
- SMESHDS_SubMesh* fSubMesh = meshDS->MeshElements( quad->face );
- SMDS_NodeIteratorPtr nIt = fSubMesh->GetNodes();
- while ( nIt->more() ) // loop on nodes bound to a FACE
- {
- const SMDS_MeshNode* node = nIt->next();
- TSmoothNode & sNode = smooNoMap[ node ];
- sNode._uv = myHelper->GetNodeUV( quad->face, node );
- sNode._xyz = SMESH_TNodeXYZ( node );
- if ( fixedNodes.count( node ))
- continue; // fixed - no triangles
-
- // set sNode._triangles
- SMDS_ElemIteratorPtr fIt = node->GetInverseElementIterator( SMDSAbs_Face );
- while ( fIt->more() )
+ SMESHDS_SubMesh* fSubMesh = meshDS->MeshElements( quad->face );
+ SMDS_NodeIteratorPtr nIt = fSubMesh->GetNodes();
+ while ( nIt->more() ) // loop on nodes bound to a FACE
{
- const SMDS_MeshElement* face = fIt->next();
- const int nbN = face->NbCornerNodes();
- const int nInd = face->GetNodeIndex( node );
- const int prevInd = myHelper->WrapIndex( nInd - 1, nbN );
- const int nextInd = myHelper->WrapIndex( nInd + 1, nbN );
- const SMDS_MeshNode* prevNode = face->GetNode( prevInd );
- const SMDS_MeshNode* nextNode = face->GetNode( nextInd );
- sNode._triangles.push_back( TTriangle( & smooNoMap[ prevNode ],
- & smooNoMap[ nextNode ]));
- }
- }
- // set _uv of smooth nodes on FACE boundary
- set< StdMeshers_FaceSide* > sidesOnEdge;
- list< FaceQuadStruct::Ptr >::iterator q = myQuadList.begin();
- for ( ; q != myQuadList.end() ; ++q )
- for ( size_t i = 0; i < (*q)->side.size(); ++i )
- if ( ! (*q)->side[i].grid->Edge(0).IsNull() &&
- //(*q)->nbNodeOut( i ) == 0 &&
- sidesOnEdge.insert( (*q)->side[i].grid.get() ).second )
+ const SMDS_MeshNode* node = nIt->next();
+ TSmoothNode & sNode = smooNoMap[ node ];
+ sNode._uv = myHelper->GetNodeUV( quad->face, node );
+ sNode._xyz = SMESH_TNodeXYZ( node );
+ if ( fixedNodes.count( node ))
+ continue; // fixed - no triangles
+
+ // set sNode._triangles
+ SMDS_ElemIteratorPtr fIt = node->GetInverseElementIterator( SMDSAbs_Face );
+ while ( fIt->more() )
{
- const vector<UVPtStruct>& uvVec = (*q)->side[i].grid->GetUVPtStruct();
- for ( unsigned j = 0; j < uvVec.size(); ++j )
+ const SMDS_MeshElement* face = fIt->next();
+ const int nbN = face->NbCornerNodes();
+ const int nInd = face->GetNodeIndex( node );
+ const int prevInd = myHelper->WrapIndex( nInd - 1, nbN );
+ const int nextInd = myHelper->WrapIndex( nInd + 1, nbN );
+ const SMDS_MeshNode* prevNode = face->GetNode( prevInd );
+ const SMDS_MeshNode* nextNode = face->GetNode( nextInd );
+ sNode._triangles.push_back( TTriangle( & smooNoMap[ prevNode ],
+ & smooNoMap[ nextNode ]));
+ }
+ }
+ // set _uv of smooth nodes on FACE boundary
+ set< StdMeshers_FaceSide* > sidesOnEdge;
+ list< FaceQuadStruct::Ptr >::iterator q = myQuadList.begin();
+ for ( ; q != myQuadList.end() ; ++q )
+ for ( size_t i = 0; i < (*q)->side.size(); ++i )
+ if ( ! (*q)->side[i].grid->Edge(0).IsNull() &&
+ //(*q)->nbNodeOut( i ) == 0 &&
+ sidesOnEdge.insert( (*q)->side[i].grid.get() ).second )
{
- TSmoothNode & sNode = smooNoMap[ uvVec[j].node ];
- sNode._uv = uvVec[j].UV();
- sNode._xyz = SMESH_TNodeXYZ( uvVec[j].node );
+ const vector<UVPtStruct>& uvVec = (*q)->side[i].grid->GetUVPtStruct();
+ for ( unsigned j = 0; j < uvVec.size(); ++j )
+ {
+ TSmoothNode & sNode = smooNoMap[ uvVec[j].node ];
+ sNode._uv = uvVec[j].UV();
+ sNode._xyz = SMESH_TNodeXYZ( uvVec[j].node );
+ }
}
- }
- // define refernce orientation in 2D
- TNo2SmooNoMap::iterator n2sn = smooNoMap.begin();
- for ( ; n2sn != smooNoMap.end(); ++n2sn )
- if ( !n2sn->second._triangles.empty() )
- break;
- if ( n2sn == smooNoMap.end() ) return;
- const TSmoothNode & sampleNode = n2sn->second;
- const bool refForward = ( sampleNode._triangles[0].IsForward( sampleNode._uv ));
+ // define reference orientation in 2D
+ TNo2SmooNoMap::iterator n2sn = smooNoMap.begin();
+ for ( ; n2sn != smooNoMap.end(); ++n2sn )
+ if ( !n2sn->second._triangles.empty() )
+ break;
+ if ( n2sn == smooNoMap.end() ) return;
+ const TSmoothNode & sampleNode = n2sn->second;
+ const bool refForward = ( sampleNode._triangles[0].IsForward( sampleNode._uv ));
- // Smoothing
+ // Smoothing
- for ( int iLoop = 0; iLoop < 5; ++iLoop )
- {
- for ( n2sn = smooNoMap.begin(); n2sn != smooNoMap.end(); ++n2sn )
+ for ( int iLoop = 0; iLoop < 5; ++iLoop )
{
- TSmoothNode& sNode = n2sn->second;
- if ( sNode._triangles.empty() )
- continue; // not movable node
+ for ( n2sn = smooNoMap.begin(); n2sn != smooNoMap.end(); ++n2sn )
+ {
+ TSmoothNode& sNode = n2sn->second;
+ if ( sNode._triangles.empty() )
+ continue; // not movable node
- gp_XY newUV;
- bool isValid = false;
- bool use3D = ( iLoop > 2 ); // 3 loops in 2D and 2, in 3D
+ gp_XY newUV;
+ bool isValid = false;
+ bool use3D = ( iLoop > 2 ); // 3 loops in 2D and 2, in 3D
- if ( use3D )
- {
- // compute a new XYZ
- gp_XYZ newXYZ (0,0,0);
- for ( size_t i = 0; i < sNode._triangles.size(); ++i )
- newXYZ += sNode._triangles[i]._n1->_xyz;
- newXYZ /= sNode._triangles.size();
-
- // compute a new UV by projection
- newUV = surface->NextValueOfUV( sNode._uv, newXYZ, 10*tol ).XY();
-
- // check validity of the newUV
- for ( size_t i = 0; i < sNode._triangles.size() && isValid; ++i )
- isValid = ( sNode._triangles[i].IsForward( newUV ) == refForward );
- }
- if ( !isValid )
- {
- // compute a new UV by averaging
- newUV.SetCoord(0.,0.);
- for ( unsigned i = 0; i < sNode._triangles.size(); ++i )
- newUV += sNode._triangles[i]._n1->_uv;
- newUV /= sNode._triangles.size();
-
- // check validity of the newUV
- isValid = true;
- for ( unsigned i = 0; i < sNode._triangles.size() && isValid; ++i )
- isValid = ( sNode._triangles[i].IsForward( newUV ) == refForward );
- }
- if ( isValid )
- {
- sNode._uv = newUV;
- sNode._xyz = surface->Value( newUV ).XYZ();
+ if ( use3D )
+ {
+ // compute a new XYZ
+ gp_XYZ newXYZ (0,0,0);
+ for ( size_t i = 0; i < sNode._triangles.size(); ++i )
+ newXYZ += sNode._triangles[i]._n1->_xyz;
+ newXYZ /= sNode._triangles.size();
+
+ // compute a new UV by projection
+ newUV = surface->NextValueOfUV( sNode._uv, newXYZ, 10*tol ).XY();
+
+ // check validity of the newUV
+ for ( size_t i = 0; i < sNode._triangles.size() && isValid; ++i )
+ isValid = ( sNode._triangles[i].IsForward( newUV ) == refForward );
+ }
+ if ( !isValid )
+ {
+ // compute a new UV by averaging
+ newUV.SetCoord(0.,0.);
+ for ( unsigned i = 0; i < sNode._triangles.size(); ++i )
+ newUV += sNode._triangles[i]._n1->_uv;
+ newUV /= sNode._triangles.size();
+
+ // check validity of the newUV
+ isValid = true;
+ for ( unsigned i = 0; i < sNode._triangles.size() && isValid; ++i )
+ isValid = ( sNode._triangles[i].IsForward( newUV ) == refForward );
+ }
+ if ( isValid )
+ {
+ sNode._uv = newUV;
+ sNode._xyz = surface->Value( newUV ).XYZ();
+ }
}
}
- }
- // Set new XYZ to the smoothed nodes
+ // Set new XYZ to the smoothed nodes
- for ( n2sn = smooNoMap.begin(); n2sn != smooNoMap.end(); ++n2sn )
- {
- TSmoothNode& sNode = n2sn->second;
- if ( sNode._triangles.empty() )
- continue; // not movable node
+ for ( n2sn = smooNoMap.begin(); n2sn != smooNoMap.end(); ++n2sn )
+ {
+ TSmoothNode& sNode = n2sn->second;
+ if ( sNode._triangles.empty() )
+ continue; // not movable node
- SMDS_MeshNode* node = const_cast< SMDS_MeshNode*>( n2sn->first );
- gp_Pnt xyz = surface->Value( sNode._uv );
- meshDS->MoveNode( node, xyz.X(), xyz.Y(), xyz.Z() );
+ SMDS_MeshNode* node = const_cast< SMDS_MeshNode*>( n2sn->first );
+ gp_Pnt xyz = surface->Value( sNode._uv );
+ meshDS->MoveNode( node, xyz.X(), xyz.Y(), xyz.Z() );
- // store the new UV
- node->SetPosition( SMDS_PositionPtr( new SMDS_FacePosition( sNode._uv.X(), sNode._uv.Y() )));
+ // store the new UV
+ node->SetPosition( SMDS_PositionPtr( new SMDS_FacePosition( sNode._uv.X(), sNode._uv.Y() )));
+ }
}
// Move medium nodes in quadratic mesh
meshDS->MoveNode( node, xyz.X(), xyz.Y(), xyz.Z() );
}
}
+ return;
}
//================================================================================
{
TError err;
TSideVector wireVec =
- StdMeshers_FaceSide::GetFaceWires( geomFace, *myHelper->GetMesh(), true, err );
+ StdMeshers_FaceSide::GetFaceWires( geomFace, *myHelper->GetMesh(), true, err, myHelper );
StdMeshers_FaceSidePtr wire = wireVec[0];
// find a right angle VERTEX
- int iVertex;
+ int iVertex = 0;
double maxAngle = -1e100;
for ( int i = 0; i < wire->NbEdges(); ++i )
{
if ( myHelper->HasSeam() )
for ( int i = 0; i < nbN && !nInFace; ++i )
if ( !myHelper->IsSeamShape( nn[i]->getshapeId() ))
+ {
nInFace = nn[i];
+ gp_XY uv = myHelper->GetNodeUV( geomFace, nInFace );
+ if ( myHelper->IsOnSeam( uv ))
+ nInFace = NULL;
+ }
toCheckUV = true;
for ( int i = 0; i < nbN; ++i )
uv[ i ] = myHelper->GetNodeUV( geomFace, nn[i], nInFace, &toCheckUV );
+ bool isBad = false;
switch ( nbN ) {
case 4:
{
if ( sign1 * sign2 < 0 )
continue; // this should not happen
}
- if ( sign1 * okSign < 0 )
- badFaces.push_back ( f );
+ isBad = ( sign1 * okSign < 0 );
break;
}
case 3:
{
double sign = getArea( uv[0], uv[1], uv[2] );
- if ( sign * okSign < 0 )
- badFaces.push_back ( f );
+ isBad = ( sign * okSign < 0 );
break;
}
default:;
}
+
+ // if ( isBad && myHelper->HasRealSeam() )
+ // {
+ // // detect a case where a face intersects the seam
+ // for ( int iPar = 1; iPar < 3; ++iPar )
+ // if ( iPar & myHelper->GetPeriodicIndex() )
+ // {
+ // double min = uv[0].Coord( iPar ), max = uv[0].Coord( iPar );
+ // for ( int i = 1; i < nbN; ++i )
+ // {
+ // min = Min( min, uv[i].Coord( iPar ));
+ // max = Max( max, uv[i].Coord( iPar ));
+ // }
+ // }
+ // }
+ if ( isBad )
+ badFaces.push_back ( f );
}
if ( !badFaces.empty() )
return isOK;
}
-//================================================================================
-/*!
- * \brief Finds vertices at the most sharp face corners
- * \param [in] theFace - the FACE
- * \param [in,out] theWire - the ordered edges of the face. It can be modified to
- * have the first VERTEX of the first EDGE in \a vertices
- * \param [out] theVertices - the found corner vertices in the order corresponding to
- * the order of EDGEs in \a theWire
- * \param [out] theNbDegenEdges - nb of degenerated EDGEs in theFace
- * \param [in] theConsiderMesh - if \c true, only meshed VERTEXes are considered
- * as possible corners
- * \return int - number of quad sides found: 0, 3 or 4
- */
-//================================================================================
-
-int StdMeshers_Quadrangle_2D::getCorners(const TopoDS_Face& theFace,
- SMESH_Mesh & theMesh,
- std::list<TopoDS_Edge>& theWire,
- std::vector<TopoDS_Vertex>& theVertices,
- int & theNbDegenEdges,
- const bool theConsiderMesh)
-{
- theNbDegenEdges = 0;
-
- SMESH_MesherHelper helper( theMesh );
- StdMeshers_FaceSide faceSide( theFace, theWire, &theMesh, /*isFwd=*/true, /*skipMedium=*/true);
-
- // sort theVertices by angle
- multimap<double, TopoDS_Vertex> vertexByAngle;
- TopTools_DataMapOfShapeReal angleByVertex;
- TopoDS_Edge prevE = theWire.back();
- if ( SMESH_Algo::isDegenerated( prevE ))
- {
- list<TopoDS_Edge>::reverse_iterator edge = ++theWire.rbegin();
- while ( SMESH_Algo::isDegenerated( *edge ))
- ++edge;
- if ( edge == theWire.rend() )
- return false;
- prevE = *edge;
- }
- list<TopoDS_Edge>::iterator edge = theWire.begin();
- for ( int iE = 0; edge != theWire.end(); ++edge, ++iE )
- {
- if ( SMESH_Algo::isDegenerated( *edge ))
- {
- ++theNbDegenEdges;
- continue;
- }
- if ( !theConsiderMesh || faceSide.VertexNode( iE ))
- {
- TopoDS_Vertex v = helper.IthVertex( 0, *edge );
- double angle = helper.GetAngle( prevE, *edge, theFace, v );
- vertexByAngle.insert( make_pair( angle, v ));
- angleByVertex.Bind( v, angle );
- }
- prevE = *edge;
- }
-
- // find out required nb of corners (3 or 4)
- int nbCorners = 4;
- TopoDS_Shape triaVertex = helper.GetMeshDS()->IndexToShape( myTriaVertexID );
- if ( !triaVertex.IsNull() &&
- triaVertex.ShapeType() == TopAbs_VERTEX &&
- helper.IsSubShape( triaVertex, theFace ) &&
- ( vertexByAngle.size() != 4 || vertexByAngle.begin()->first < 5 * M_PI/180. ))
- nbCorners = 3;
- else
- triaVertex.Nullify();
-
- // check nb of available corners
- if ( faceSide.NbEdges() < nbCorners )
- return error(COMPERR_BAD_SHAPE,
- TComm("Face must have 4 sides but not ") << faceSide.NbEdges() );
-
- if ( theConsiderMesh )
- {
- const int nbSegments = Max( faceSide.NbPoints()-1, faceSide.NbSegments() );
- if ( nbSegments < nbCorners )
- return error(COMPERR_BAD_INPUT_MESH, TComm("Too few boundary nodes: ") << nbSegments);
- }
-
- if ( nbCorners == 3 )
- {
- if ( vertexByAngle.size() < 3 )
- return error(COMPERR_BAD_SHAPE,
- TComm("Face must have 3 sides but not ") << vertexByAngle.size() );
- }
- else
- {
- if ( vertexByAngle.size() == 3 && theNbDegenEdges == 0 )
- {
- if ( myTriaVertexID < 1 )
- return error(COMPERR_BAD_PARMETERS,
- "No Base vertex provided for a trilateral geometrical face");
-
- TComm comment("Invalid Base vertex: ");
- comment << myTriaVertexID << " its ID is not among [ ";
- multimap<double, TopoDS_Vertex>::iterator a2v = vertexByAngle.begin();
- comment << helper.GetMeshDS()->ShapeToIndex( a2v->second ) << ", "; a2v++;
- comment << helper.GetMeshDS()->ShapeToIndex( a2v->second ) << ", "; a2v++;
- comment << helper.GetMeshDS()->ShapeToIndex( a2v->second ) << " ]";
- return error(COMPERR_BAD_PARMETERS, comment );
- }
- if ( vertexByAngle.size() + ( theNbDegenEdges > 0 ) < 4 &&
- vertexByAngle.size() + theNbDegenEdges != 4 )
- return error(COMPERR_BAD_SHAPE,
- TComm("Face must have 4 sides but not ") << vertexByAngle.size() );
- }
-
- // put all corner vertices in a map
- TopTools_MapOfShape vMap;
- if ( nbCorners == 3 )
- vMap.Add( triaVertex );
- multimap<double, TopoDS_Vertex>::reverse_iterator a2v = vertexByAngle.rbegin();
- for ( int iC = 0; a2v != vertexByAngle.rend() && iC < nbCorners; ++a2v, ++iC )
- vMap.Add( (*a2v).second );
-
- // check if there are possible variations in choosing corners
- bool haveVariants = false;
- if ( vertexByAngle.size() > nbCorners )
- {
- double lostAngle = a2v->first;
- double lastAngle = ( --a2v, a2v->first );
- haveVariants = ( lostAngle * 1.1 >= lastAngle );
- }
-
- const double angleTol = 5.* M_PI/180;
- myCheckOri = ( vertexByAngle.size() > nbCorners ||
- vertexByAngle.begin()->first < angleTol );
-
- // make theWire begin from a corner vertex or triaVertex
- if ( nbCorners == 3 )
- while ( !triaVertex.IsSame( ( helper.IthVertex( 0, theWire.front() ))) ||
- SMESH_Algo::isDegenerated( theWire.front() ))
- theWire.splice( theWire.end(), theWire, theWire.begin() );
- else
- while ( !vMap.Contains( helper.IthVertex( 0, theWire.front() )) ||
- SMESH_Algo::isDegenerated( theWire.front() ))
- theWire.splice( theWire.end(), theWire, theWire.begin() );
-
- // fill the result vector and prepare for its refinement
- theVertices.clear();
- vector< double > angles;
- vector< TopoDS_Edge > edgeVec;
- vector< int > cornerInd, nbSeg;
- int nbSegTot = 0;
- angles .reserve( vertexByAngle.size() );
- edgeVec.reserve( vertexByAngle.size() );
- nbSeg .reserve( vertexByAngle.size() );
- cornerInd.reserve( nbCorners );
- for ( edge = theWire.begin(); edge != theWire.end(); ++edge )
- {
- if ( SMESH_Algo::isDegenerated( *edge ))
- continue;
- TopoDS_Vertex v = helper.IthVertex( 0, *edge );
- bool isCorner = vMap.Contains( v );
- if ( isCorner )
- {
- theVertices.push_back( v );
- cornerInd.push_back( angles.size() );
- }
- angles .push_back( angleByVertex.IsBound( v ) ? angleByVertex( v ) : -M_PI );
- edgeVec.push_back( *edge );
- if ( theConsiderMesh && haveVariants )
- {
- if ( SMESHDS_SubMesh* sm = helper.GetMeshDS()->MeshElements( *edge ))
- nbSeg.push_back( sm->NbNodes() + 1 );
- else
- nbSeg.push_back( 0 );
- nbSegTot += nbSeg.back();
- }
- }
-
- // refine the result vector - make sides equal by length if
- // there are several equal angles
- if ( haveVariants )
- {
- if ( nbCorners == 3 )
- angles[0] = 2 * M_PI; // not to move the base triangle VERTEX
-
- // here we refer to VERTEX'es and EDGEs by indices in angles and edgeVec vectors
- typedef int TGeoIndex;
-
- // for each vertex find a vertex till which there are nbSegHalf segments
- const int nbSegHalf = ( nbSegTot % 2 || nbCorners == 3 ) ? 0 : nbSegTot / 2;
- vector< TGeoIndex > halfDivider( angles.size(), -1 );
- int nbHalfDividers = 0;
- if ( nbSegHalf )
- {
- // get min angle of corners
- double minAngle = 10.;
- for ( size_t iC = 0; iC < cornerInd.size(); ++iC )
- minAngle = Min( minAngle, angles[ cornerInd[ iC ]]);
-
- // find halfDivider's
- for ( TGeoIndex iV1 = 0; iV1 < TGeoIndex( angles.size() ); ++iV1 )
- {
- int nbSegs = 0;
- TGeoIndex iV2 = iV1;
- do {
- nbSegs += nbSeg[ iV2 ];
- iV2 = helper.WrapIndex( iV2 + 1, nbSeg.size() );
- } while ( nbSegs < nbSegHalf );
-
- if ( nbSegs == nbSegHalf &&
- angles[ iV1 ] + angleTol >= minAngle &&
- angles[ iV2 ] + angleTol >= minAngle )
- {
- halfDivider[ iV1 ] = iV2;
- ++nbHalfDividers;
- }
- }
- }
-
- set< TGeoIndex > refinedCorners, treatedCorners;
- for ( size_t iC = 0; iC < cornerInd.size(); ++iC )
- {
- TGeoIndex iV = cornerInd[iC];
- if ( !treatedCorners.insert( iV ).second )
- continue;
- list< TGeoIndex > equVerts; // inds of vertices that can become corners
- equVerts.push_back( iV );
- int nbC[2] = { 0, 0 };
- // find equal angles backward and forward from the iV-th corner vertex
- for ( int isFwd = 0; isFwd < 2; ++isFwd )
- {
- int dV = isFwd ? +1 : -1;
- int iCNext = helper.WrapIndex( iC + dV, cornerInd.size() );
- TGeoIndex iVNext = helper.WrapIndex( iV + dV, angles.size() );
- while ( iVNext != iV )
- {
- bool equal = Abs( angles[iV] - angles[iVNext] ) < angleTol;
- if ( equal )
- equVerts.insert( isFwd ? equVerts.end() : equVerts.begin(), iVNext );
- if ( iVNext == cornerInd[ iCNext ])
- {
- if ( !equal )
- {
- if ( angles[iV] < angles[iVNext] )
- refinedCorners.insert( iVNext );
- break;
- }
- nbC[ isFwd ]++;
- treatedCorners.insert( cornerInd[ iCNext ] );
- iCNext = helper.WrapIndex( iCNext + dV, cornerInd.size() );
- }
- iVNext = helper.WrapIndex( iVNext + dV, angles.size() );
- }
- if ( iVNext == iV )
- break; // all angles equal
- }
-
- const bool allCornersSame = ( nbC[0] == 3 );
- if ( allCornersSame && nbHalfDividers > 0 )
- {
- // select two halfDivider's as corners
- TGeoIndex hd1, hd2 = -1;
- int iC2;
- for ( iC2 = 0; iC2 < cornerInd.size() && hd2 < 0; ++iC2 )
- {
- hd1 = cornerInd[ iC2 ];
- hd2 = halfDivider[ hd1 ];
- if ( std::find( equVerts.begin(), equVerts.end(), hd2 ) == equVerts.end() )
- hd2 = -1; // hd2-th vertex can't become a corner
- else
- break;
- }
- if ( hd2 >= 0 )
- {
- angles[ hd1 ] = 2 * M_PI; // make hd1-th vertex no more "equal"
- angles[ hd2 ] = 2 * M_PI;
- refinedCorners.insert( hd1 );
- refinedCorners.insert( hd2 );
- treatedCorners = refinedCorners;
- // update cornerInd
- equVerts.push_front( equVerts.back() );
- equVerts.push_back( equVerts.front() );
- list< TGeoIndex >::iterator hdPos =
- std::find( equVerts.begin(), equVerts.end(), hd2 );
- if ( hdPos == equVerts.end() ) break;
- cornerInd[ helper.WrapIndex( iC2 + 0, cornerInd.size()) ] = hd1;
- cornerInd[ helper.WrapIndex( iC2 + 1, cornerInd.size()) ] = *( --hdPos );
- cornerInd[ helper.WrapIndex( iC2 + 2, cornerInd.size()) ] = hd2;
- cornerInd[ helper.WrapIndex( iC2 + 3, cornerInd.size()) ] = *( ++hdPos, ++hdPos );
-
- theVertices[ 0 ] = helper.IthVertex( 0, edgeVec[ cornerInd[0] ]);
- theVertices[ 1 ] = helper.IthVertex( 0, edgeVec[ cornerInd[1] ]);
- theVertices[ 2 ] = helper.IthVertex( 0, edgeVec[ cornerInd[2] ]);
- theVertices[ 3 ] = helper.IthVertex( 0, edgeVec[ cornerInd[3] ]);
- iC = -1;
- continue;
- }
- }
-
- // move corners to make sides equal by length
- int nbEqualV = equVerts.size();
- int nbExcessV = nbEqualV - ( 1 + nbC[0] + nbC[1] );
- if ( nbExcessV > 0 ) // there is nbExcessV vertices that can become corners
- {
- // calculate normalized length of each "side" enclosed between neighbor equVerts
- vector< double > accuLength;
- double totalLen = 0;
- vector< TGeoIndex > evVec( equVerts.begin(), equVerts.end() );
- int iEV = 0;
- TGeoIndex iE = cornerInd[ helper.WrapIndex( iC - nbC[0] - 1, cornerInd.size() )];
- TGeoIndex iEEnd = cornerInd[ helper.WrapIndex( iC + nbC[1] + 1, cornerInd.size() )];
- while ( accuLength.size() < nbEqualV + int( !allCornersSame ) )
- {
- // accumulate length of edges before iEV-th equal vertex
- accuLength.push_back( totalLen );
- do {
- accuLength.back() += SMESH_Algo::EdgeLength( edgeVec[ iE ]);
- iE = helper.WrapIndex( iE + 1, edgeVec.size());
- if ( iEV < evVec.size() && iE == evVec[ iEV ] ) {
- iEV++;
- break; // equal vertex reached
- }
- }
- while( iE != iEEnd );
- totalLen = accuLength.back();
- }
- accuLength.resize( equVerts.size() );
- for ( size_t iS = 0; iS < accuLength.size(); ++iS )
- accuLength[ iS ] /= totalLen;
-
- // find equVerts most close to the ideal sub-division of all sides
- int iBestEV = 0;
- int iCorner = helper.WrapIndex( iC - nbC[0], cornerInd.size() );
- int nbSides = Min( nbCorners, 2 + nbC[0] + nbC[1] );
- for ( int iS = 1; iS < nbSides; ++iS, ++iBestEV )
- {
- double idealLen = iS / double( nbSides );
- double d, bestDist = 2.;
- for ( iEV = iBestEV; iEV < accuLength.size(); ++iEV )
- {
- d = Abs( idealLen - accuLength[ iEV ]);
-
- // take into account presence of a coresponding halfDivider
- const double cornerWgt = 0.5 / nbSides;
- const double vertexWgt = 0.25 / nbSides;
- TGeoIndex hd = halfDivider[ evVec[ iEV ]];
- if ( hd < 0 )
- d += vertexWgt;
- else if( refinedCorners.count( hd ))
- d -= cornerWgt;
- else
- d -= vertexWgt;
-
- // choose vertex with the best d
- if ( d < bestDist )
- {
- bestDist = d;
- iBestEV = iEV;
- }
- }
- if ( iBestEV > iS-1 + nbExcessV )
- iBestEV = iS-1 + nbExcessV;
- theVertices[ iCorner ] = helper.IthVertex( 0, edgeVec[ evVec[ iBestEV ]]);
- refinedCorners.insert( evVec[ iBestEV ]);
- iCorner = helper.WrapIndex( iCorner + 1, cornerInd.size() );
- }
-
- } // if ( nbExcessV > 0 )
- else
- {
- refinedCorners.insert( cornerInd[ iC ]);
- }
- } // loop on cornerInd
-
- // make theWire begin from the cornerInd[0]-th EDGE
- while ( !theWire.front().IsSame( edgeVec[ cornerInd[0] ]))
- theWire.splice( theWire.begin(), theWire, --theWire.end() );
-
- } // if ( haveVariants )
-
- return nbCorners;
-}
-
//================================================================================
/*!
* \brief Constructor of a side of quad
quadsBySide[ (*quadIt)->side[iSide] ].push_back( *quadIt );
}
- SMESH_Mesh* mesh = myHelper->GetMesh();
- SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
const TopoDS_Face& face = TopoDS::Face( myHelper->GetSubShape() );
Handle(Geom_Surface) surf = BRep_Tool::Surface( face );
continue;
const vector<UVPtStruct>& oGrid = side.contacts[iC].other_side->grid->GetUVPtStruct();
const UVPtStruct& uvPt = points[ side.contacts[iC].point ];
- if ( side.contacts[iC].other_point >= oGrid .size() ||
- side.contacts[iC].point >= points.size() )
+ if ( side.contacts[iC].other_point >= (int) oGrid .size() ||
+ side.contacts[iC].point >= (int) points.size() )
throw SALOME_Exception( "StdMeshers_Quadrangle_2D::addEnforcedNodes(): wrong contact" );
if ( oGrid[ side.contacts[iC].other_point ].node )
(( UVPtStruct& ) uvPt).node = oGrid[ side.contacts[iC].other_point ].node;
return;
}
- const int iFrom = Min ( iForced, *iNext );
- const int iTo = Max ( iForced, *iNext ) + 1;
- const int sideSize = iTo - iFrom;
+ const int iFrom = Min ( iForced, *iNext );
+ const int iTo = Max ( iForced, *iNext ) + 1;
+ const size_t sideSize = iTo - iFrom;
vector<UVPtStruct> points[4]; // side points of a temporary quad
for ( int is2nd = 0; is2nd < 2; ++is2nd )
{
points[ is2nd ].reserve( sideSize );
- int nbLoops = 0;
+ size_t nbLoops = 0;
while ( points[is2nd].size() < sideSize )
{
int iCur = iFrom + points[is2nd].size() - int( !points[is2nd].empty() );
for ( iS = 0; iS < q->side.size(); ++iS )
if ( side.grid == q->side[ iS ].grid )
break;
+ if ( iS == q->side.size() )
+ continue;
bool isOut;
if ( !q->side[ iS ].IsReversed() )
isOut = ( q->side[ iS ].from > iCur || q->side[ iS ].to-1 <= iCur );
void FaceQuadStruct::Side::AddContact( int ip, Side* side, int iop )
{
- if ( ip >= GetUVPtStruct().size() ||
- iop >= side->GetUVPtStruct().size() )
+ if ( ip >= (int) GetUVPtStruct().size() ||
+ iop >= (int) side->GetUVPtStruct().size() )
throw SALOME_Exception( "FaceQuadStruct::Side::AddContact(): wrong point" );
if ( ip < from || ip >= to )
return;
