-// Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2019 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
// Module : SMESH
//
#include "StdMeshers_Cartesian_3D.hxx"
+#include "StdMeshers_CartesianParameters3D.hxx"
+#include "ObjectPool.hxx"
#include "SMDS_MeshNode.hxx"
+#include "SMDS_VolumeTool.hxx"
#include "SMESHDS_Mesh.hxx"
#include "SMESH_Block.hxx"
#include "SMESH_Comment.hxx"
+#include "SMESH_ControlsDef.hxx"
#include "SMESH_Mesh.hxx"
+#include "SMESH_MeshAlgos.hxx"
+#include "SMESH_MeshEditor.hxx"
#include "SMESH_MesherHelper.hxx"
#include "SMESH_subMesh.hxx"
#include "SMESH_subMeshEventListener.hxx"
-#include "StdMeshers_CartesianParameters3D.hxx"
+#include "StdMeshers_FaceSide.hxx"
#include <utilities.h>
#include <Utils_ExceptHandlers.hxx>
-#include <Basics_OCCTVersion.hxx>
#include <GEOMUtils.hxx>
#include <limits>
+#include <boost/container/flat_map.hpp>
+
//#undef WITH_TBB
#ifdef WITH_TBB
+
+#ifdef WIN32
+// See https://docs.microsoft.com/en-gb/cpp/porting/modifying-winver-and-win32-winnt?view=vs-2019
+// Windows 10 = 0x0A00
+#define WINVER 0x0A00
+#define _WIN32_WINNT 0x0A00
+#endif
+
#include <tbb/parallel_for.h>
//#include <tbb/enumerable_thread_specific.h>
#endif
using namespace std;
+using namespace SMESH;
#ifdef _DEBUG_
//#define _MY_DEBUG_
*/
//=============================================================================
-StdMeshers_Cartesian_3D::StdMeshers_Cartesian_3D(int hypId, int studyId, SMESH_Gen * gen)
- :SMESH_3D_Algo(hypId, studyId, gen)
+StdMeshers_Cartesian_3D::StdMeshers_Cartesian_3D(int hypId, SMESH_Gen * gen)
+ :SMESH_3D_Algo(hypId, gen)
{
_name = "Cartesian_3D";
_shapeType = (1 << TopAbs_SOLID); // 1 bit /shape type
namespace
{
- typedef int TGeomID;
+ typedef int TGeomID; // IDs of sub-shapes
//=============================================================================
// Definitions of internal utils
Trans_TANGENT = IntCurveSurface_Tangent,
Trans_IN = IntCurveSurface_In,
Trans_OUT = IntCurveSurface_Out,
- Trans_APEX
+ Trans_APEX,
+ Trans_INTERNAL // for INTERNAL FACE
+ };
+ // --------------------------------------------------------------------------
+ /*!
+ * \brief Container of IDs of SOLID sub-shapes
+ */
+ class Solid // sole SOLID contains all sub-shapes
+ {
+ TGeomID _id; // SOLID id
+ bool _hasInternalFaces;
+ public:
+ virtual ~Solid() {}
+ virtual bool Contains( TGeomID subID ) const { return true; }
+ virtual bool ContainsAny( const vector< TGeomID>& subIDs ) const { return true; }
+ virtual TopAbs_Orientation Orientation( const TopoDS_Shape& s ) const { return s.Orientation(); }
+ virtual bool IsOutsideOriented( TGeomID faceID ) const { return true; }
+ void SetID( TGeomID id ) { _id = id; }
+ TGeomID ID() const { return _id; }
+ void SetHasInternalFaces( bool has ) { _hasInternalFaces = has; }
+ bool HasInternalFaces() const { return _hasInternalFaces; }
+ };
+ // --------------------------------------------------------------------------
+ class OneOfSolids : public Solid
+ {
+ TColStd_MapOfInteger _subIDs;
+ TopTools_MapOfShape _faces; // keep FACE orientation
+ TColStd_MapOfInteger _outFaceIDs; // FACEs of shape_to_mesh oriented outside the SOLID
+ public:
+ void Init( const TopoDS_Shape& solid,
+ TopAbs_ShapeEnum subType,
+ const SMESHDS_Mesh* mesh );
+ virtual bool Contains( TGeomID i ) const { return i == ID() || _subIDs.Contains( i ); }
+ virtual bool ContainsAny( const vector< TGeomID>& subIDs ) const
+ {
+ for ( size_t i = 0; i < subIDs.size(); ++i ) if ( Contains( subIDs[ i ])) return true;
+ return false;
+ }
+ virtual TopAbs_Orientation Orientation( const TopoDS_Shape& face ) const
+ {
+ const TopoDS_Shape& sInMap = const_cast< OneOfSolids* >(this)->_faces.Added( face );
+ return sInMap.Orientation();
+ }
+ virtual bool IsOutsideOriented( TGeomID faceID ) const
+ {
+ return faceID == 0 || _outFaceIDs.Contains( faceID );
+ }
+ };
+ // --------------------------------------------------------------------------
+ /*!
+ * \brief Geom data
+ */
+ struct Geometry
+ {
+ TopoDS_Shape _mainShape;
+ vector< vector< TGeomID > > _solidIDsByShapeID;// V/E/F ID -> SOLID IDs
+ Solid _soleSolid;
+ map< TGeomID, OneOfSolids > _solidByID;
+ TColStd_MapOfInteger _boundaryFaces; // FACEs on boundary of mesh->ShapeToMesh()
+ TColStd_MapOfInteger _strangeEdges; // EDGEs shared by strange FACEs
+ TGeomID _extIntFaceID; // pseudo FACE - extension of INTERNAL FACE
+
+ Controls::ElementsOnShape _edgeClassifier;
+ Controls::ElementsOnShape _vertexClassifier;
+
+ bool IsOneSolid() const { return _solidByID.size() < 2; }
};
// --------------------------------------------------------------------------
/*!
struct F_IntersectPoint : public B_IntersectPoint
{
double _paramOnLine;
+ double _u, _v;
mutable Transition _transition;
mutable size_t _indexOnLine;
{
gp_Pnt _point;
double _uvw[3];
- TGeomID _shapeID;
+ TGeomID _shapeID; // ID of EDGE or VERTEX
};
// --------------------------------------------------------------------------
/*!
multiset< F_IntersectPoint > _intPoints;
void RemoveExcessIntPoints( const double tol );
- bool GetIsOutBefore( multiset< F_IntersectPoint >::iterator ip, bool prevIsOut );
+ TGeomID GetSolidIDBefore( multiset< F_IntersectPoint >::iterator ip,
+ const TGeomID prevID,
+ const Geometry& geom);
};
// --------------------------------------------------------------------------
/*!
{
_size[0] = sz1; _size[1] = sz2; _size[2] = sz3;
_curInd[0] = _curInd[1] = _curInd[2] = 0;
- _iVar1 = iv1; _iVar2 = iv2; _iConst = iConst;
+ _iVar1 = iv1; _iVar2 = iv2; _iConst = iConst;
_name1 = nv1; _name2 = nv2; _nameConst = nConst;
}
vector< const SMDS_MeshNode* > _nodes; // mesh nodes at grid nodes
vector< const F_IntersectPoint* > _gridIntP; // grid node intersection with geometry
-
- list< E_IntersectPoint > _edgeIntP; // intersections with EDGEs
- TopTools_IndexedMapOfShape _shapes;
-
+ ObjectPool< E_IntersectPoint > _edgeIntPool; // intersections with EDGEs
+ ObjectPool< F_IntersectPoint > _extIntPool; // intersections with extended INTERNAL FACEs
+ //list< E_IntersectPoint > _edgeIntP; // intersections with EDGEs
+
+ Geometry _geometry;
+ bool _toAddEdges;
+ bool _toCreateFaces;
+ bool _toConsiderInternalFaces;
+ bool _toUseThresholdForInternalFaces;
+ double _sizeThreshold;
+
+ vector< TGeomID > _shapeIDs; // returned by Hexahedron::getSolids()
SMESH_MesherHelper* _helper;
size_t CellIndex( size_t i, size_t j, size_t k ) const
LineIndexer GetLineIndexer(size_t iDir) const;
+ E_IntersectPoint* Add( const E_IntersectPoint& ip )
+ {
+ E_IntersectPoint* eip = _edgeIntPool.getNew();
+ *eip = ip;
+ return eip;
+ }
+ void Remove( E_IntersectPoint* eip ) { _edgeIntPool.destroy( eip ); }
+
+ TGeomID ShapeID( const TopoDS_Shape& s ) const;
+ const TopoDS_Shape& Shape( TGeomID id ) const;
+ TopAbs_ShapeEnum ShapeType( TGeomID id ) const { return Shape(id).ShapeType(); }
+ void InitGeometry( const TopoDS_Shape& theShape );
+ void InitClassifier( const TopoDS_Shape& mainShape,
+ TopAbs_ShapeEnum shapeType,
+ Controls::ElementsOnShape& classifier );
+ void GetEdgesToImplement( map< TGeomID, vector< TGeomID > > & edge2faceMap,
+ const TopoDS_Shape& shape,
+ const vector< TopoDS_Shape >& faces );
+ void SetSolidFather( const TopoDS_Shape& s, const TopoDS_Shape& theShapeToMesh );
+ bool IsShared( TGeomID faceID ) const;
+ bool IsAnyShared( const std::vector< TGeomID >& faceIDs ) const;
+ bool IsInternal( TGeomID faceID ) const {
+ return ( faceID == PseudoIntExtFaceID() ||
+ Shape( faceID ).Orientation() == TopAbs_INTERNAL ); }
+ bool IsSolid( TGeomID shapeID ) const {
+ if ( _geometry.IsOneSolid() ) return _geometry._soleSolid.ID() == shapeID;
+ else return _geometry._solidByID.count( shapeID ); }
+ bool IsStrangeEdge( TGeomID id ) const { return _geometry._strangeEdges.Contains( id ); }
+ TGeomID PseudoIntExtFaceID() const { return _geometry._extIntFaceID; }
+ Solid* GetSolid( TGeomID solidID = 0 );
+ Solid* GetOneOfSolids( TGeomID solidID );
+ const vector< TGeomID > & GetSolidIDs( TGeomID subShapeID ) const;
+ bool IsCorrectTransition( TGeomID faceID, const Solid* solid );
+ bool IsBoundaryFace( TGeomID face ) const { return _geometry._boundaryFaces.Contains( face ); }
+ void SetOnShape( const SMDS_MeshNode* n, const F_IntersectPoint& ip, bool unset=false );
+ bool IsToCheckNodePos() const { return !_toAddEdges && _toCreateFaces; }
+
void SetCoordinates(const vector<double>& xCoords,
const vector<double>& yCoords,
const vector<double>& zCoords,
void ComputeNodes(SMESH_MesherHelper& helper);
};
// --------------------------------------------------------------------------
+ /*!
+ * \brief Return cells sharing a link
+ */
+ struct CellsAroundLink
+ {
+ int _dInd[4][3];
+ size_t _nbCells[3];
+ int _i,_j,_k;
+ Grid* _grid;
+
+ CellsAroundLink( Grid* grid, int iDir ):
+ _dInd{ {0,0,0}, {0,0,0}, {0,0,0}, {0,0,0} },
+ _nbCells{ grid->_coords[0].size() - 1,
+ grid->_coords[1].size() - 1,
+ grid->_coords[2].size() - 1 },
+ _grid( grid )
+ {
+ const int iDirOther[3][2] = {{ 1,2 },{ 0,2 },{ 0,1 }};
+ _dInd[1][ iDirOther[iDir][0] ] = -1;
+ _dInd[2][ iDirOther[iDir][1] ] = -1;
+ _dInd[3][ iDirOther[iDir][0] ] = -1; _dInd[3][ iDirOther[iDir][1] ] = -1;
+ }
+ void Init( int i, int j, int k, int link12 = 0 )
+ {
+ int iL = link12 % 4;
+ _i = i - _dInd[iL][0];
+ _j = j - _dInd[iL][1];
+ _k = k - _dInd[iL][2];
+ }
+ bool GetCell( int iL, int& i, int& j, int& k, int& cellIndex )
+ {
+ i = _i + _dInd[iL][0];
+ j = _j + _dInd[iL][1];
+ k = _k + _dInd[iL][2];
+ if ( i < 0 || i >= (int)_nbCells[0] ||
+ j < 0 || j >= (int)_nbCells[1] ||
+ k < 0 || k >= (int)_nbCells[2] )
+ return false;
+ cellIndex = _grid->CellIndex( i,j,k );
+ return true;
+ }
+ };
+ // --------------------------------------------------------------------------
/*!
* \brief Intersector of TopoDS_Face with all GridLine's
*/
{
for ( size_t i = 0; i < _intersections.size(); ++i )
{
- multiset< F_IntersectPoint >::iterator ip =
+ multiset< F_IntersectPoint >::iterator ip =
_intersections[i].first->_intPoints.insert( _intersections[i].second );
ip->_faceIDs.reserve( 1 );
ip->_faceIDs.push_back( _faceID );
{
double _tol;
double _u, _v, _w; // params on the face and the line
- Transition _transition; // transition of at intersection (see IntCurveSurface.cdl)
+ Transition _transition; // transition at intersection (see IntCurveSurface.cdl)
Transition _transIn, _transOut; // IN and OUT transitions depending of face orientation
gp_Pln _plane;
// --------------------------------------------------------------------------------
struct _Face;
struct _Link;
+ enum IsInternalFlag { IS_NOT_INTERNAL, IS_INTERNAL, IS_CUT_BY_INTERNAL_FACE };
// --------------------------------------------------------------------------------
struct _Node //!< node either at a hexahedron corner or at intersection
{
const SMDS_MeshNode* _node; // mesh node at hexahedron corner
const B_IntersectPoint* _intPoint;
const _Face* _usedInFace;
+ char _isInternalFlags;
_Node(const SMDS_MeshNode* n=0, const B_IntersectPoint* ip=0)
- :_node(n), _intPoint(ip), _usedInFace(0) {}
+ :_node(n), _intPoint(ip), _usedInFace(0), _isInternalFlags(0) {}
const SMDS_MeshNode* Node() const
{ return ( _intPoint && _intPoint->_node ) ? _intPoint->_node : _node; }
const E_IntersectPoint* EdgeIntPnt() const
{ return static_cast< const E_IntersectPoint* >( _intPoint ); }
+ const F_IntersectPoint* FaceIntPnt() const
+ { return static_cast< const F_IntersectPoint* >( _intPoint ); }
+ const vector< TGeomID >& faces() const { return _intPoint->_faceIDs; }
+ TGeomID face(size_t i) const { return _intPoint->_faceIDs[ i ]; }
+ void SetInternal( IsInternalFlag intFlag ) { _isInternalFlags |= intFlag; }
+ bool IsCutByInternal() const { return _isInternalFlags & IS_CUT_BY_INTERNAL_FACE; }
bool IsUsedInFace( const _Face* polygon = 0 )
{
return polygon ? ( _usedInFace == polygon ) : bool( _usedInFace );
}
- void Add( const E_IntersectPoint* ip )
- {
- if ( !_intPoint ) {
- _intPoint = ip;
- }
- else if ( !_intPoint->_node ) {
- ip->Add( _intPoint->_faceIDs );
- _intPoint = ip;
- }
- else {
- _intPoint->Add( ip->_faceIDs );
- }
- }
TGeomID IsLinked( const B_IntersectPoint* other,
TGeomID avoidFace=-1 ) const // returns id of a common face
{
gp_Pnt Point() const
{
if ( const SMDS_MeshNode* n = Node() )
- return SMESH_TNodeXYZ( n );
+ return SMESH_NodeXYZ( n );
if ( const E_IntersectPoint* eip =
dynamic_cast< const E_IntersectPoint* >( _intPoint ))
return eip->_point;
return eip->_shapeID;
return 0;
}
+ void Add( const E_IntersectPoint* ip )
+ {
+ // Possible cases before Add(ip):
+ /// 1) _node != 0 --> _Node at hex corner ( _intPoint == 0 || _intPoint._node == 0 )
+ /// 2) _node == 0 && _intPoint._node != 0 --> link intersected by FACE
+ /// 3) _node == 0 && _intPoint._node == 0 --> _Node at EDGE intersection
+ //
+ // If ip is added in cases 1) and 2) _node position must be changed to ip._shapeID
+ // at creation of elements
+ // To recognize this case, set _intPoint._node = Node()
+ const SMDS_MeshNode* node = Node();
+ if ( !_intPoint ) {
+ _intPoint = ip;
+ }
+ else {
+ ip->Add( _intPoint->_faceIDs );
+ _intPoint = ip;
+ }
+ if ( node )
+ _node = _intPoint->_node = node;
+ }
};
// --------------------------------------------------------------------------------
struct _Link // link connecting two _Node's
vector< const F_IntersectPoint* > _fIntPoints; // GridLine intersections with FACEs
vector< _Node* > _fIntNodes; // _Node's at _fIntPoints
vector< _Link > _splits;
- _Link() { _faces[0] = 0; }
+ _Link(): _faces{ 0, 0 } {}
};
// --------------------------------------------------------------------------------
struct _OrientedLink
}
};
// --------------------------------------------------------------------------------
+ struct _SplitIterator //! set to _hexLinks splits on one side of INTERNAL FACEs
+ {
+ struct _Split // data of a link split
+ {
+ int _linkID; // hex link ID
+ _Node* _nodes[2];
+ int _iCheckIteration; // iteration where split is tried as Hexahedron split
+ _Link* _checkedSplit; // split set to hex links
+ bool _isUsed; // used in a volume
+
+ _Split( _Link & split, int iLink ):
+ _linkID( iLink ), _nodes{ split._nodes[0], split._nodes[1] },
+ _iCheckIteration( 0 ), _isUsed( false )
+ {}
+ bool IsCheckedOrUsed( bool used ) const { return used ? _isUsed : _iCheckIteration > 0; }
+ };
+ _Link* _hexLinks;
+ std::vector< _Split > _splits;
+ int _iterationNb;
+ size_t _nbChecked;
+ size_t _nbUsed;
+ std::vector< _Node* > _freeNodes; // nodes reached while composing a split set
+
+ _SplitIterator( _Link* hexLinks ):
+ _hexLinks( hexLinks ), _iterationNb(0), _nbChecked(0), _nbUsed(0)
+ {
+ _freeNodes.reserve( 12 );
+ _splits.reserve( 24 );
+ for ( int iL = 0; iL < 12; ++iL )
+ for ( size_t iS = 0; iS < _hexLinks[ iL ]._splits.size(); ++iS )
+ _splits.emplace_back( _hexLinks[ iL ]._splits[ iS ], iL );
+ Next();
+ }
+ bool More() const { return _nbUsed < _splits.size(); }
+ bool Next();
+ };
+ // --------------------------------------------------------------------------------
struct _Face
{
vector< _OrientedLink > _links; // links on GridLine's
// --------------------------------------------------------------------------------
struct _volumeDef // holder of nodes of a volume mesh element
{
- vector< _Node* > _nodes;
- vector< int > _quantities;
- typedef boost::shared_ptr<_volumeDef> Ptr;
- void set( const vector< _Node* >& nodes,
- const vector< int >& quant = vector< int >() )
- { _nodes = nodes; _quantities = quant; }
- void set( _Node** nodes, int nb )
+ struct _nodeDef
+ {
+ const SMDS_MeshNode* _node; // mesh node at hexahedron corner
+ const B_IntersectPoint* _intPoint;
+
+ _nodeDef( _Node* n ): _node( n->_node), _intPoint( n->_intPoint ) {}
+ const SMDS_MeshNode* Node() const
+ { return ( _intPoint && _intPoint->_node ) ? _intPoint->_node : _node; }
+ const E_IntersectPoint* EdgeIntPnt() const
+ { return static_cast< const E_IntersectPoint* >( _intPoint ); }
+ };
+ vector< _nodeDef > _nodes;
+ vector< int > _quantities;
+ _volumeDef* _next; // to store several _volumeDefs in a chain
+ TGeomID _solidID;
+ const SMDS_MeshElement* _volume; // new volume
+
+ _volumeDef(): _next(0), _solidID(0), _volume(0) {}
+ ~_volumeDef() { delete _next; }
+ _volumeDef( _volumeDef& other ):
+ _next(0), _solidID( other._solidID ), _volume( other._volume )
+ { _nodes.swap( other._nodes ); _quantities.swap( other._quantities ); other._volume = 0; }
+
+ void Set( const vector< _Node* >& nodes, const vector< int >& quant = vector< int >() )
+ { _nodes.assign( nodes.begin(), nodes.end() ); _quantities = quant; }
+
+ void Set( _Node** nodes, int nb )
{ _nodes.assign( nodes, nodes + nb ); }
+
+ void SetNext( _volumeDef* vd )
+ { if ( _next ) { _next->SetNext( vd ); } else { _next = vd; }}
};
// topology of a hexahedron
vector< _Node* > _vIntNodes;
// computed volume elements
- //vector< _volumeDef::Ptr > _volumeDefs;
_volumeDef _volumeDefs;
Grid* _grid;
- double _sizeThreshold, _sideLength[3];
+ double _sideLength[3];
int _nbCornerNodes, _nbFaceIntNodes, _nbBndNodes;
int _origNodeInd; // index of _hexNodes[0] node within the _grid
size_t _i,_j,_k;
+ bool _hasTooSmall;
+
+#ifdef _DEBUG_
+ int _cellID;
+#endif
public:
- Hexahedron(const double sizeThreshold, Grid* grid);
+ Hexahedron(Grid* grid);
int MakeElements(SMESH_MesherHelper& helper,
const map< TGeomID, vector< TGeomID > >& edge2faceIDsMap);
- void ComputeElements();
- void Init() { init( _i, _j, _k ); }
+ void ComputeElements( const Solid* solid = 0, int solidIndex = -1 );
private:
- Hexahedron(const Hexahedron& other );
- void init( size_t i, size_t j, size_t k );
+ Hexahedron(const Hexahedron& other, size_t i, size_t j, size_t k, int cellID );
+ void init( size_t i, size_t j, size_t k, const Solid* solid=0 );
void init( size_t i );
+ void setIJK( size_t i );
+ bool compute( const Solid* solid, const IsInternalFlag intFlag );
+ const vector< TGeomID >& getSolids();
+ bool isCutByInternalFace( IsInternalFlag & maxFlag );
void addEdges(SMESH_MesherHelper& helper,
vector< Hexahedron* >& intersectedHex,
const map< TGeomID, vector< TGeomID > >& edge2faceIDsMap);
double proj, BRepAdaptor_Curve& curve,
const gp_XYZ& axis, const gp_XYZ& origin );
int getEntity( const E_IntersectPoint* ip, int* facets, int& sub );
- bool addIntersection( const E_IntersectPoint& ip,
+ bool addIntersection( const E_IntersectPoint* ip,
vector< Hexahedron* >& hexes,
int ijk[], int dIJK[] );
bool findChain( _Node* n1, _Node* n2, _Face& quad, vector<_Node*>& chainNodes );
size_t & iS,
_Face& quad,
vector<_Node*>& chn);
- int addElements(SMESH_MesherHelper& helper);
- bool isOutPoint( _Link& link, int iP, SMESH_MesherHelper& helper ) const;
+ int addVolumes(SMESH_MesherHelper& helper );
+ void addFaces( SMESH_MesherHelper& helper,
+ const vector< const SMDS_MeshElement* > & boundaryVolumes );
+ void addSegments( SMESH_MesherHelper& helper,
+ const map< TGeomID, vector< TGeomID > >& edge2faceIDsMap );
+ void getVolumes( vector< const SMDS_MeshElement* > & volumes );
+ void getBoundaryElems( vector< const SMDS_MeshElement* > & boundaryVolumes );
+ TGeomID getAnyFace() const;
+ void cutByExtendedInternal( std::vector< Hexahedron* >& hexes,
+ const TColStd_MapOfInteger& intEdgeIDs );
+ gp_Pnt mostDistantInternalPnt( int hexIndex, const gp_Pnt& p1, const gp_Pnt& p2 );
+ bool isOutPoint( _Link& link, int iP, SMESH_MesherHelper& helper, const Solid* solid ) const;
void sortVertexNodes(vector<_Node*>& nodes, _Node* curNode, TGeomID face);
bool isInHole() const;
- bool checkPolyhedronSize() const;
+ bool hasStrangeEdge() const;
+ bool checkPolyhedronSize( bool isCutByInternalFace ) const;
bool addHexa ();
bool addTetra();
bool addPenta();
return nodes[i];
return 0;
}
- bool isImplementEdges() const { return !_grid->_edgeIntP.empty(); }
+ bool isImplementEdges() const { return _grid->_edgeIntPool.nbElements(); }
bool isOutParam(const double uvw[3]) const;
+
+ typedef boost::container::flat_map< TGeomID, size_t > TID2Nb;
+ static void insertAndIncrement( TGeomID id, TID2Nb& id2nbMap )
+ {
+ TID2Nb::value_type s0( id, 0 );
+ TID2Nb::iterator id2nb = id2nbMap.insert( s0 ).first;
+ id2nb->second++;
+ }
};
#ifdef WITH_TBB
}
//================================================================================
/*
- * Return "is OUT" state for nodes before the given intersection point
+ * Return ID of SOLID for nodes before the given intersection point
*/
- bool GridLine::GetIsOutBefore( multiset< F_IntersectPoint >::iterator ip, bool prevIsOut )
+ TGeomID GridLine::GetSolidIDBefore( multiset< F_IntersectPoint >::iterator ip,
+ const TGeomID prevID,
+ const Geometry& geom )
{
- if ( ip->_transition == Trans_IN )
- return true;
- if ( ip->_transition == Trans_OUT )
- return false;
- if ( ip->_transition == Trans_APEX )
+ if ( ip == _intPoints.begin() )
+ return 0;
+
+ if ( geom.IsOneSolid() )
{
- // singularity point (apex of a cone)
- if ( _intPoints.size() == 1 || ip == _intPoints.begin() )
- return true;
- multiset< F_IntersectPoint >::iterator ipBef = ip, ipAft = ++ip;
- if ( ipAft == _intPoints.end() )
- return false;
- --ipBef;
- if ( ipBef->_transition != ipAft->_transition )
- return ( ipBef->_transition == Trans_OUT );
- return ( ipBef->_transition != Trans_OUT );
+ bool isOut = true;
+ switch ( ip->_transition ) {
+ case Trans_IN: isOut = true; break;
+ case Trans_OUT: isOut = false; break;
+ case Trans_TANGENT: isOut = ( prevID != 0 ); break;
+ case Trans_APEX:
+ {
+ // singularity point (apex of a cone)
+ multiset< F_IntersectPoint >::iterator ipBef = ip, ipAft = ++ip;
+ if ( ipAft == _intPoints.end() )
+ isOut = false;
+ else
+ {
+ --ipBef;
+ if ( ipBef->_transition != ipAft->_transition )
+ isOut = ( ipBef->_transition == Trans_OUT );
+ else
+ isOut = ( ipBef->_transition != Trans_OUT );
+ }
+ break;
+ }
+ case Trans_INTERNAL: isOut = false;
+ default:;
+ }
+ return isOut ? 0 : geom._soleSolid.ID();
+ }
+
+ const vector< TGeomID >& solids = geom._solidIDsByShapeID[ ip->_faceIDs[ 0 ]];
+
+ --ip;
+ if ( ip->_transition == Trans_INTERNAL )
+ return prevID;
+
+ const vector< TGeomID >& solidsBef = geom._solidIDsByShapeID[ ip->_faceIDs[ 0 ]];
+
+ if ( ip->_transition == Trans_IN ||
+ ip->_transition == Trans_OUT )
+ {
+ if ( solidsBef.size() == 1 )
+ return ( solidsBef[0] == prevID ) ? 0 : solidsBef[0];
+
+ return solidsBef[ solidsBef[0] == prevID ];
+ }
+
+ if ( solidsBef.size() == 1 )
+ return solidsBef[0];
+
+ for ( size_t i = 0; i < solids.size(); ++i )
+ {
+ vector< TGeomID >::const_iterator it =
+ std::find( solidsBef.begin(), solidsBef.end(), solids[i] );
+ if ( it != solidsBef.end() )
+ return solids[i];
}
- // _transition == Trans_TANGENT
- return !prevIsOut;
+ return 0;
}
//================================================================================
/*
return ( it != _faceIDs.end() );
}
//================================================================================
+ /*
+ * OneOfSolids initialization
+ */
+ void OneOfSolids::Init( const TopoDS_Shape& solid,
+ TopAbs_ShapeEnum subType,
+ const SMESHDS_Mesh* mesh )
+ {
+ SetID( mesh->ShapeToIndex( solid ));
+
+ if ( subType == TopAbs_FACE )
+ SetHasInternalFaces( false );
+
+ for ( TopExp_Explorer sub( solid, subType ); sub.More(); sub.Next() )
+ {
+ _subIDs.Add( mesh->ShapeToIndex( sub.Current() ));
+ if ( subType == TopAbs_FACE )
+ {
+ _faces.Add( sub.Current() );
+ if ( sub.Current().Orientation() == TopAbs_INTERNAL )
+ SetHasInternalFaces( true );
+
+ TGeomID faceID = mesh->ShapeToIndex( sub.Current() );
+ if ( sub.Current().Orientation() == TopAbs_INTERNAL ||
+ sub.Current().Orientation() == mesh->IndexToShape( faceID ).Orientation() )
+ _outFaceIDs.Add( faceID );
+ }
+ }
+ }
+ //================================================================================
/*
* Return an iterator on GridLine's in a given direction
*/
}
}
}
+ //================================================================================
+ /*
+ * Return local ID of shape
+ */
+ TGeomID Grid::ShapeID( const TopoDS_Shape& s ) const
+ {
+ return _helper->GetMeshDS()->ShapeToIndex( s );
+ }
+ //================================================================================
+ /*
+ * Return a shape by its local ID
+ */
+ const TopoDS_Shape& Grid::Shape( TGeomID id ) const
+ {
+ return _helper->GetMeshDS()->IndexToShape( id );
+ }
+ //================================================================================
+ /*
+ * Initialize _geometry
+ */
+ void Grid::InitGeometry( const TopoDS_Shape& theShapeToMesh )
+ {
+ SMESH_Mesh* mesh = _helper->GetMesh();
+
+ _geometry._mainShape = theShapeToMesh;
+ _geometry._extIntFaceID = mesh->GetMeshDS()->MaxShapeIndex() * 100;
+ _geometry._soleSolid.SetID( 0 );
+ _geometry._soleSolid.SetHasInternalFaces( false );
+
+ InitClassifier( theShapeToMesh, TopAbs_VERTEX, _geometry._vertexClassifier );
+ InitClassifier( theShapeToMesh, TopAbs_EDGE , _geometry._edgeClassifier );
+
+ TopExp_Explorer solidExp( theShapeToMesh, TopAbs_SOLID );
+
+ bool isSeveralSolids = false;
+ if ( _toConsiderInternalFaces ) // check nb SOLIDs
+ {
+ solidExp.Next();
+ isSeveralSolids = solidExp.More();
+ _toConsiderInternalFaces = isSeveralSolids;
+ solidExp.ReInit();
+
+ if ( !isSeveralSolids ) // look for an internal FACE
+ {
+ TopExp_Explorer fExp( theShapeToMesh, TopAbs_FACE );
+ for ( ; fExp.More() && !_toConsiderInternalFaces; fExp.Next() )
+ _toConsiderInternalFaces = ( fExp.Current().Orientation() == TopAbs_INTERNAL );
+
+ _geometry._soleSolid.SetHasInternalFaces( _toConsiderInternalFaces );
+ _geometry._soleSolid.SetID( ShapeID( solidExp.Current() ));
+ }
+ else // fill Geometry::_solidByID
+ {
+ for ( ; solidExp.More(); solidExp.Next() )
+ {
+ OneOfSolids & solid = _geometry._solidByID[ ShapeID( solidExp.Current() )];
+ solid.Init( solidExp.Current(), TopAbs_FACE, mesh->GetMeshDS() );
+ solid.Init( solidExp.Current(), TopAbs_EDGE, mesh->GetMeshDS() );
+ solid.Init( solidExp.Current(), TopAbs_VERTEX, mesh->GetMeshDS() );
+ }
+ }
+ }
+ else
+ {
+ _geometry._soleSolid.SetID( ShapeID( solidExp.Current() ));
+ }
+
+ if ( !_toCreateFaces )
+ {
+ int nbSolidsGlobal = _helper->Count( mesh->GetShapeToMesh(), TopAbs_SOLID, false );
+ int nbSolidsLocal = _helper->Count( theShapeToMesh, TopAbs_SOLID, false );
+ _toCreateFaces = ( nbSolidsLocal < nbSolidsGlobal );
+ }
+
+ TopTools_IndexedMapOfShape faces;
+ if ( _toCreateFaces || isSeveralSolids )
+ TopExp::MapShapes( theShapeToMesh, TopAbs_FACE, faces );
+
+ // find boundary FACEs on boundary of mesh->ShapeToMesh()
+ if ( _toCreateFaces )
+ for ( int i = 1; i <= faces.Size(); ++i )
+ if ( faces(i).Orientation() != TopAbs_INTERNAL &&
+ _helper->NbAncestors( faces(i), *mesh, TopAbs_SOLID ) == 1 )
+ {
+ _geometry._boundaryFaces.Add( ShapeID( faces(i) ));
+ }
+
+ if ( isSeveralSolids )
+ for ( int i = 1; i <= faces.Size(); ++i )
+ {
+ SetSolidFather( faces(i), theShapeToMesh );
+ for ( TopExp_Explorer eExp( faces(i), TopAbs_EDGE ); eExp.More(); eExp.Next() )
+ {
+ const TopoDS_Edge& edge = TopoDS::Edge( eExp.Current() );
+ SetSolidFather( edge, theShapeToMesh );
+ SetSolidFather( _helper->IthVertex( 0, edge ), theShapeToMesh );
+ SetSolidFather( _helper->IthVertex( 1, edge ), theShapeToMesh );
+ }
+ }
+ return;
+ }
+ //================================================================================
+ /*
+ * Store ID of SOLID as father of its child shape ID
+ */
+ void Grid::SetSolidFather( const TopoDS_Shape& s, const TopoDS_Shape& theShapeToMesh )
+ {
+ if ( _geometry._solidIDsByShapeID.empty() )
+ _geometry._solidIDsByShapeID.resize( _helper->GetMeshDS()->MaxShapeIndex() + 1 );
+
+ vector< TGeomID > & solidIDs = _geometry._solidIDsByShapeID[ ShapeID( s )];
+ if ( !solidIDs.empty() )
+ return;
+ solidIDs.reserve(2);
+ PShapeIteratorPtr solidIt = _helper->GetAncestors( s,
+ *_helper->GetMesh(),
+ TopAbs_SOLID,
+ & theShapeToMesh );
+ while ( const TopoDS_Shape* solid = solidIt->next() )
+ solidIDs.push_back( ShapeID( *solid ));
+ }
+ //================================================================================
+ /*
+ * Return IDs of solids given sub-shape belongs to
+ */
+ const vector< TGeomID > & Grid::GetSolidIDs( TGeomID subShapeID ) const
+ {
+ return _geometry._solidIDsByShapeID[ subShapeID ];
+ }
+ //================================================================================
+ /*
+ * Check if a sub-shape belongs to several SOLIDs
+ */
+ bool Grid::IsShared( TGeomID shapeID ) const
+ {
+ return !_geometry.IsOneSolid() && ( _geometry._solidIDsByShapeID[ shapeID ].size() > 1 );
+ }
+ //================================================================================
+ /*
+ * Check if any of FACEs belongs to several SOLIDs
+ */
+ bool Grid::IsAnyShared( const std::vector< TGeomID >& faceIDs ) const
+ {
+ for ( size_t i = 0; i < faceIDs.size(); ++i )
+ if ( IsShared( faceIDs[ i ]))
+ return true;
+ return false;
+ }
+ //================================================================================
+ /*
+ * Return Solid by ID
+ */
+ Solid* Grid::GetSolid( TGeomID solidID )
+ {
+ if ( !solidID || _geometry.IsOneSolid() || _geometry._solidByID.empty() )
+ return & _geometry._soleSolid;
+
+ return & _geometry._solidByID[ solidID ];
+ }
+ //================================================================================
+ /*
+ * Return OneOfSolids by ID
+ */
+ Solid* Grid::GetOneOfSolids( TGeomID solidID )
+ {
+ map< TGeomID, OneOfSolids >::iterator is2s = _geometry._solidByID.find( solidID );
+ if ( is2s != _geometry._solidByID.end() )
+ return & is2s->second;
+
+ return & _geometry._soleSolid;
+ }
+ //================================================================================
+ /*
+ * Check if transition on given FACE is correct for a given SOLID
+ */
+ bool Grid::IsCorrectTransition( TGeomID faceID, const Solid* solid )
+ {
+ if ( _geometry.IsOneSolid() )
+ return true;
+
+ const vector< TGeomID >& solidIDs = _geometry._solidIDsByShapeID[ faceID ];
+ return solidIDs[0] == solid->ID();
+ }
+
+ //================================================================================
+ /*
+ * Assign to geometry a node at FACE intersection
+ */
+ void Grid::SetOnShape( const SMDS_MeshNode* n, const F_IntersectPoint& ip, bool unset )
+ {
+ TopoDS_Shape s;
+ SMESHDS_Mesh* mesh = _helper->GetMeshDS();
+ if ( ip._faceIDs.size() == 1 )
+ {
+ mesh->SetNodeOnFace( n, ip._faceIDs[0], ip._u, ip._v );
+ }
+ else if ( _geometry._vertexClassifier.IsSatisfy( n, &s ))
+ {
+ if ( unset ) mesh->UnSetNodeOnShape( n );
+ mesh->SetNodeOnVertex( n, TopoDS::Vertex( s ));
+ }
+ else if ( _geometry._edgeClassifier.IsSatisfy( n, &s ))
+ {
+ if ( unset ) mesh->UnSetNodeOnShape( n );
+ mesh->SetNodeOnEdge( n, TopoDS::Edge( s ));
+ }
+ else if ( ip._faceIDs.size() > 0 )
+ {
+ mesh->SetNodeOnFace( n, ip._faceIDs[0], ip._u, ip._v );
+ }
+ else if ( !unset && _geometry.IsOneSolid() )
+ {
+ mesh->SetNodeInVolume( n, _geometry._soleSolid.ID() );
+ }
+ }
+ //================================================================================
+ /*
+ * Initialize a classifier
+ */
+ void Grid::InitClassifier( const TopoDS_Shape& mainShape,
+ TopAbs_ShapeEnum shapeType,
+ Controls::ElementsOnShape& classifier )
+ {
+ TopTools_IndexedMapOfShape shapes;
+ TopExp::MapShapes( mainShape, shapeType, shapes );
+
+ TopoDS_Compound compound; BRep_Builder builder;
+ builder.MakeCompound( compound );
+ for ( int i = 1; i <= shapes.Size(); ++i )
+ builder.Add( compound, shapes(i) );
+
+ classifier.SetMesh( _helper->GetMeshDS() );
+ //classifier.SetTolerance( _tol ); // _tol is not initialised
+ classifier.SetShape( compound, SMDSAbs_Node );
+ }
+
+ //================================================================================
+ /*
+ * Return EDGEs with FACEs to implement into the mesh
+ */
+ void Grid::GetEdgesToImplement( map< TGeomID, vector< TGeomID > > & edge2faceIDsMap,
+ const TopoDS_Shape& shape,
+ const vector< TopoDS_Shape >& faces )
+ {
+ // check if there are strange EDGEs
+ TopTools_IndexedMapOfShape faceMap;
+ TopExp::MapShapes( _helper->GetMesh()->GetShapeToMesh(), TopAbs_FACE, faceMap );
+ int nbFacesGlobal = faceMap.Size();
+ faceMap.Clear( false );
+ TopExp::MapShapes( shape, TopAbs_FACE, faceMap );
+ int nbFacesLocal = faceMap.Size();
+ bool hasStrangeEdges = ( nbFacesGlobal > nbFacesLocal );
+ if ( !_toAddEdges && !hasStrangeEdges )
+ return; // no FACEs in contact with those meshed by other algo
+
+ for ( size_t i = 0; i < faces.size(); ++i )
+ {
+ _helper->SetSubShape( faces[i] );
+ for ( TopExp_Explorer eExp( faces[i], TopAbs_EDGE ); eExp.More(); eExp.Next() )
+ {
+ const TopoDS_Edge& edge = TopoDS::Edge( eExp.Current() );
+ if ( hasStrangeEdges )
+ {
+ bool hasStrangeFace = false;
+ PShapeIteratorPtr faceIt = _helper->GetAncestors( edge, *_helper->GetMesh(), TopAbs_FACE);
+ while ( const TopoDS_Shape* face = faceIt->next() )
+ if (( hasStrangeFace = !faceMap.Contains( *face )))
+ break;
+ if ( !hasStrangeFace && !_toAddEdges )
+ continue;
+ _geometry._strangeEdges.Add( ShapeID( edge ));
+ _geometry._strangeEdges.Add( ShapeID( _helper->IthVertex( 0, edge )));
+ _geometry._strangeEdges.Add( ShapeID( _helper->IthVertex( 1, edge )));
+ }
+ if ( !SMESH_Algo::isDegenerated( edge ) &&
+ !_helper->IsRealSeam( edge ))
+ {
+ edge2faceIDsMap[ ShapeID( edge )].push_back( ShapeID( faces[i] ));
+ }
+ }
+ }
+ return;
+ }
+
//================================================================================
/*
* Computes coordinates of a point in the grid CS
{
// state of each node of the grid relative to the geometry
const size_t nbGridNodes = _coords[0].size() * _coords[1].size() * _coords[2].size();
- vector< bool > isNodeOut( nbGridNodes, false );
+ const TGeomID undefID = 1e+9;
+ vector< TGeomID > shapeIDVec( nbGridNodes, undefID );
_nodes.resize( nbGridNodes, 0 );
_gridIntP.resize( nbGridNodes, NULL );
+ SMESHDS_Mesh* mesh = helper.GetMeshDS();
+
for ( int iDir = 0; iDir < 3; ++iDir ) // loop on 3 line directions
{
LineIndexer li = GetLineIndexer( iDir );
GridLine& line = _lines[ iDir ][ li.LineIndex() ];
const gp_XYZ lineLoc = line._line.Location().XYZ();
const gp_XYZ lineDir = line._line.Direction().XYZ();
+
line.RemoveExcessIntPoints( _tol );
- multiset< F_IntersectPoint >& intPnts = line._intPoints;
+ multiset< F_IntersectPoint >& intPnts = line._intPoints;
multiset< F_IntersectPoint >::iterator ip = intPnts.begin();
- bool isOut = true;
+ // Create mesh nodes at intersections with geometry
+ // and set OUT state of nodes between intersections
+
+ TGeomID solidID = 0;
const double* nodeCoord = & coords[0];
const double* coord0 = nodeCoord;
const double* coordEnd = coord0 + coords.size();
double nodeParam = 0;
for ( ; ip != intPnts.end(); ++ip )
{
+ solidID = line.GetSolidIDBefore( ip, solidID, _geometry );
+
// set OUT state or just skip IN nodes before ip
if ( nodeParam < ip->_paramOnLine - _tol )
{
- isOut = line.GetIsOutBefore( ip, isOut );
-
while ( nodeParam < ip->_paramOnLine - _tol )
{
- if ( isOut )
- isNodeOut[ nIndex0 + nShift * ( nodeCoord-coord0 ) ] = isOut;
+ TGeomID & nodeShapeID = shapeIDVec[ nIndex0 + nShift * ( nodeCoord-coord0 ) ];
+ nodeShapeID = Min( solidID, nodeShapeID );
if ( ++nodeCoord < coordEnd )
nodeParam = *nodeCoord - *coord0;
else
// create a mesh node on a GridLine at ip if it does not coincide with a grid node
if ( nodeParam > ip->_paramOnLine + _tol )
{
- // li.SetIndexOnLine( 0 );
- // double xyz[3] = { _coords[0][ li.I() ], _coords[1][ li.J() ], _coords[2][ li.K() ]};
- // xyz[ li._iConst ] += ip->_paramOnLine;
gp_XYZ xyz = lineLoc + ip->_paramOnLine * lineDir;
- ip->_node = helper.AddNode( xyz.X(), xyz.Y(), xyz.Z() );
+ ip->_node = mesh->AddNode( xyz.X(), xyz.Y(), xyz.Z() );
ip->_indexOnLine = nodeCoord-coord0-1;
+ SetOnShape( ip->_node, *ip );
}
- // create a mesh node at ip concident with a grid node
+ // create a mesh node at ip coincident with a grid node
else
{
int nodeIndex = nIndex0 + nShift * ( nodeCoord-coord0 );
if ( !_nodes[ nodeIndex ] )
{
- //li.SetIndexOnLine( nodeCoord-coord0 );
- //double xyz[3] = { _coords[0][ li.I() ], _coords[1][ li.J() ], _coords[2][ li.K() ]};
gp_XYZ xyz = lineLoc + nodeParam * lineDir;
- _nodes [ nodeIndex ] = helper.AddNode( xyz.X(), xyz.Y(), xyz.Z() );
- _gridIntP[ nodeIndex ] = & * ip;
+ _nodes [ nodeIndex ] = mesh->AddNode( xyz.X(), xyz.Y(), xyz.Z() );
+ //_gridIntP[ nodeIndex ] = & * ip;
+ //SetOnShape( _nodes[ nodeIndex ], *ip );
}
if ( _gridIntP[ nodeIndex ] )
_gridIntP[ nodeIndex ]->Add( ip->_faceIDs );
}
// set OUT state to nodes after the last ip
for ( ; nodeCoord < coordEnd; ++nodeCoord )
- isNodeOut[ nIndex0 + nShift * ( nodeCoord-coord0 ) ] = true;
+ shapeIDVec[ nIndex0 + nShift * ( nodeCoord-coord0 ) ] = 0;
}
}
for ( size_t x = 0; x < _coords[0].size(); ++x )
{
size_t nodeIndex = NodeIndex( x, y, z );
- if ( !isNodeOut[ nodeIndex ] && !_nodes[ nodeIndex] )
+ if ( !_nodes[ nodeIndex ] &&
+ 0 < shapeIDVec[ nodeIndex ] && shapeIDVec[ nodeIndex ] < undefID )
{
- //_nodes[ nodeIndex ] = helper.AddNode( _coords[0][x], _coords[1][y], _coords[2][z] );
gp_XYZ xyz = ( _coords[0][x] * _axes[0] +
_coords[1][y] * _axes[1] +
_coords[2][z] * _axes[2] );
- _nodes[ nodeIndex ] = helper.AddNode( xyz.X(), xyz.Y(), xyz.Z() );
+ _nodes[ nodeIndex ] = mesh->AddNode( xyz.X(), xyz.Y(), xyz.Z() );
+ mesh->SetNodeInVolume( _nodes[ nodeIndex ], shapeIDVec[ nodeIndex ]);
+ }
+ else if ( _nodes[ nodeIndex ] && _gridIntP[ nodeIndex ] /*&&
+ !_nodes[ nodeIndex]->GetShapeID()*/ )
+ {
+ SetOnShape( _nodes[ nodeIndex ], *_gridIntP[ nodeIndex ]);
}
}
_intersections.push_back( make_pair( &gridLine, intersector._intPoints[i] ));
}
}
+
+ if ( _face.Orientation() == TopAbs_INTERNAL )
+ {
+ for ( size_t i = 0; i < _intersections.size(); ++i )
+ if ( _intersections[i].second._transition == Trans_IN ||
+ _intersections[i].second._transition == Trans_OUT )
+ {
+ _intersections[i].second._transition = Trans_INTERNAL;
+ }
+ }
+ return;
}
//================================================================================
/*
{
F_IntersectPoint p;
p._paramOnLine = _w;
+ p._u = _u;
+ p._v = _v;
p._transition = _transition;
_intPoints.push_back( p );
}
}
if ( surf->IsKind( STANDARD_TYPE(Geom_BSplineSurface )) ||
surf->IsKind( STANDARD_TYPE(Geom_BezierSurface )))
-#if OCC_VERSION_MAJOR < 7
- if ( !noSafeTShapes.insert((const Standard_Transient*) _face.TShape() ).second )
-#else
if ( !noSafeTShapes.insert( _face.TShape().get() ).second )
-#endif
isSafe = false;
double f, l;
edgeIsSafe = false;
}
}
-#if OCC_VERSION_MAJOR < 7
- if ( !edgeIsSafe && !noSafeTShapes.insert((const Standard_Transient*) e.TShape() ).second )
-#else
if ( !edgeIsSafe && !noSafeTShapes.insert( e.TShape().get() ).second )
-#endif
isSafe = false;
}
return isSafe;
/*!
* \brief Creates topology of the hexahedron
*/
- Hexahedron::Hexahedron(const double sizeThreshold, Grid* grid)
- : _grid( grid ), _sizeThreshold( sizeThreshold ), _nbFaceIntNodes(0)
+ Hexahedron::Hexahedron(Grid* grid)
+ : _grid( grid ), _nbFaceIntNodes(0), _hasTooSmall( false )
{
_polygons.reserve(100); // to avoid reallocation;
vector<_OrientedLink>::reverse_iterator revLinkIt = quad._links.rbegin();
for ( int i = 0; i < 4; ++i )
{
- bool revLink = revFace;
- if ( i > 1 ) // reverse links u1 and v0
- revLink = !revLink;
- _OrientedLink& link = revFace ? *revLinkIt++ : *frwLinkIt++;
- link = _OrientedLink( & _hexLinks[ SMESH_Block::ShapeIndex( idVec[interlace[i]] )],
- revLink );
+ bool revLink = revFace;
+ if ( i > 1 ) // reverse links u1 and v0
+ revLink = !revLink;
+ _OrientedLink& link = revFace ? *revLinkIt++ : *frwLinkIt++;
+ link = _OrientedLink( & _hexLinks[ SMESH_Block::ShapeIndex( idVec[interlace[i]] )],
+ revLink );
+ }
+ }
+ }
+ //================================================================================
+ /*!
+ * \brief Copy constructor
+ */
+ Hexahedron::Hexahedron( const Hexahedron& other, size_t i, size_t j, size_t k, int cellID )
+ :_grid( other._grid ), _nbFaceIntNodes(0), _i( i ), _j( j ), _k( k ), _hasTooSmall( false )
+ {
+ _polygons.reserve(100); // to avoid reallocation;
+
+ // copy topology
+ for ( int i = 0; i < 8; ++i )
+ _nodeShift[i] = other._nodeShift[i];
+
+ for ( int i = 0; i < 12; ++i )
+ {
+ const _Link& srcLink = other._hexLinks[ i ];
+ _Link& tgtLink = this->_hexLinks[ i ];
+ tgtLink._nodes[0] = _hexNodes + ( srcLink._nodes[0] - other._hexNodes );
+ tgtLink._nodes[1] = _hexNodes + ( srcLink._nodes[1] - other._hexNodes );
+ }
+
+ for ( int i = 0; i < 6; ++i )
+ {
+ const _Face& srcQuad = other._hexQuads[ i ];
+ _Face& tgtQuad = this->_hexQuads[ i ];
+ tgtQuad._links.resize(4);
+ for ( int j = 0; j < 4; ++j )
+ {
+ const _OrientedLink& srcLink = srcQuad._links[ j ];
+ _OrientedLink& tgtLink = tgtQuad._links[ j ];
+ tgtLink._reverse = srcLink._reverse;
+ tgtLink._link = _hexLinks + ( srcLink._link - other._hexLinks );
+ }
+ }
+#ifdef _DEBUG_
+ _cellID = cellID;
+#endif
+ }
+
+ //================================================================================
+ /*!
+ * \brief Return IDs of SOLIDs interfering with this Hexahedron
+ */
+ const vector< TGeomID >& Hexahedron::getSolids()
+ {
+ _grid->_shapeIDs.clear();
+ if ( _grid->_geometry.IsOneSolid() )
+ {
+ _grid->_shapeIDs.push_back( _grid->GetSolid()->ID() );
+ return _grid->_shapeIDs;
+ }
+ // count intersection points belonging to each SOLID
+ TID2Nb id2NbPoints;
+ id2NbPoints.reserve( 3 );
+
+ _origNodeInd = _grid->NodeIndex( _i,_j,_k );
+ for ( int iN = 0; iN < 8; ++iN )
+ {
+ _hexNodes[iN]._node = _grid->_nodes [ _origNodeInd + _nodeShift[iN] ];
+ _hexNodes[iN]._intPoint = _grid->_gridIntP[ _origNodeInd + _nodeShift[iN] ];
+
+ if ( _hexNodes[iN]._intPoint ) // intersection with a FACE
+ {
+ for ( size_t iF = 0; iF < _hexNodes[iN]._intPoint->_faceIDs.size(); ++iF )
+ {
+ const vector< TGeomID > & solidIDs =
+ _grid->GetSolidIDs( _hexNodes[iN]._intPoint->_faceIDs[iF] );
+ for ( size_t i = 0; i < solidIDs.size(); ++i )
+ insertAndIncrement( solidIDs[i], id2NbPoints );
+ }
+ }
+ else if ( _hexNodes[iN]._node ) // node inside a SOLID
+ {
+ insertAndIncrement( _hexNodes[iN]._node->GetShapeID(), id2NbPoints );
+ }
+ }
+
+ for ( int iL = 0; iL < 12; ++iL )
+ {
+ const _Link& link = _hexLinks[ iL ];
+ for ( size_t iP = 0; iP < link._fIntPoints.size(); ++iP )
+ {
+ for ( size_t iF = 0; iF < link._fIntPoints[iP]->_faceIDs.size(); ++iF )
+ {
+ const vector< TGeomID > & solidIDs =
+ _grid->GetSolidIDs( link._fIntPoints[iP]->_faceIDs[iF] );
+ for ( size_t i = 0; i < solidIDs.size(); ++i )
+ insertAndIncrement( solidIDs[i], id2NbPoints );
+ }
}
}
+
+ for ( size_t iP = 0; iP < _eIntPoints.size(); ++iP )
+ {
+ const vector< TGeomID > & solidIDs = _grid->GetSolidIDs( _eIntPoints[iP]->_shapeID );
+ for ( size_t i = 0; i < solidIDs.size(); ++i )
+ insertAndIncrement( solidIDs[i], id2NbPoints );
+ }
+
+ _grid->_shapeIDs.reserve( id2NbPoints.size() );
+ for ( TID2Nb::iterator id2nb = id2NbPoints.begin(); id2nb != id2NbPoints.end(); ++id2nb )
+ if ( id2nb->second >= 3 )
+ _grid->_shapeIDs.push_back( id2nb->first );
+
+ return _grid->_shapeIDs;
}
+
//================================================================================
/*!
- * \brief Copy constructor
+ * \brief Count cuts by INTERNAL FACEs and set _Node::_isInternalFlags
*/
- Hexahedron::Hexahedron( const Hexahedron& other )
- :_grid( other._grid ), _sizeThreshold( other._sizeThreshold ), _nbFaceIntNodes(0)
+ bool Hexahedron::isCutByInternalFace( IsInternalFlag & maxFlag )
{
- _polygons.reserve(100); // to avoid reallocation;
+ TID2Nb id2NbPoints;
+ id2NbPoints.reserve( 3 );
- for ( int i = 0; i < 8; ++i )
- _nodeShift[i] = other._nodeShift[i];
+ for ( size_t iN = 0; iN < _intNodes.size(); ++iN )
+ for ( size_t iF = 0; iF < _intNodes[iN]._intPoint->_faceIDs.size(); ++iF )
+ {
+ if ( _grid->IsInternal( _intNodes[iN]._intPoint->_faceIDs[iF]))
+ insertAndIncrement( _intNodes[iN]._intPoint->_faceIDs[iF], id2NbPoints );
+ }
+ for ( size_t iN = 0; iN < 8; ++iN )
+ if ( _hexNodes[iN]._intPoint )
+ for ( size_t iF = 0; iF < _hexNodes[iN]._intPoint->_faceIDs.size(); ++iF )
+ {
+ if ( _grid->IsInternal( _hexNodes[iN]._intPoint->_faceIDs[iF]))
+ insertAndIncrement( _hexNodes[iN]._intPoint->_faceIDs[iF], id2NbPoints );
+ }
- for ( int i = 0; i < 12; ++i )
+ maxFlag = IS_NOT_INTERNAL;
+ for ( TID2Nb::iterator id2nb = id2NbPoints.begin(); id2nb != id2NbPoints.end(); ++id2nb )
{
- const _Link& srcLink = other._hexLinks[ i ];
- _Link& tgtLink = this->_hexLinks[ i ];
- tgtLink._nodes[0] = _hexNodes + ( srcLink._nodes[0] - other._hexNodes );
- tgtLink._nodes[1] = _hexNodes + ( srcLink._nodes[1] - other._hexNodes );
+ TGeomID intFace = id2nb->first;
+ IsInternalFlag intFlag = ( id2nb->second >= 3 ? IS_CUT_BY_INTERNAL_FACE : IS_INTERNAL );
+ if ( intFlag > maxFlag )
+ maxFlag = intFlag;
+
+ for ( size_t iN = 0; iN < _intNodes.size(); ++iN )
+ if ( _intNodes[iN].IsOnFace( intFace ))
+ _intNodes[iN].SetInternal( intFlag );
+
+ for ( size_t iN = 0; iN < 8; ++iN )
+ if ( _hexNodes[iN].IsOnFace( intFace ))
+ _hexNodes[iN].SetInternal( intFlag );
}
- for ( int i = 0; i < 6; ++i )
- {
- const _Face& srcQuad = other._hexQuads[ i ];
- _Face& tgtQuad = this->_hexQuads[ i ];
- tgtQuad._links.resize(4);
- for ( int j = 0; j < 4; ++j )
- {
- const _OrientedLink& srcLink = srcQuad._links[ j ];
- _OrientedLink& tgtLink = tgtQuad._links[ j ];
- tgtLink._reverse = srcLink._reverse;
- tgtLink._link = _hexLinks + ( srcLink._link - other._hexLinks );
- }
- }
+ return maxFlag;
+ }
+
+ //================================================================================
+ /*!
+ * \brief Return any FACE interfering with this Hexahedron
+ */
+ TGeomID Hexahedron::getAnyFace() const
+ {
+ TID2Nb id2NbPoints;
+ id2NbPoints.reserve( 3 );
+
+ for ( size_t iN = 0; iN < _intNodes.size(); ++iN )
+ for ( size_t iF = 0; iF < _intNodes[iN]._intPoint->_faceIDs.size(); ++iF )
+ insertAndIncrement( _intNodes[iN]._intPoint->_faceIDs[iF], id2NbPoints );
+
+ for ( size_t iN = 0; iN < 8; ++iN )
+ if ( _hexNodes[iN]._intPoint )
+ for ( size_t iF = 0; iF < _hexNodes[iN]._intPoint->_faceIDs.size(); ++iF )
+ insertAndIncrement( _hexNodes[iN]._intPoint->_faceIDs[iF], id2NbPoints );
+
+ for ( unsigned int minNb = 3; minNb > 0; --minNb )
+ for ( TID2Nb::iterator id2nb = id2NbPoints.begin(); id2nb != id2NbPoints.end(); ++id2nb )
+ if ( id2nb->second >= minNb )
+ return id2nb->first;
+
+ return 0;
+ }
+
+ //================================================================================
+ /*!
+ * \brief Initializes IJK by Hexahedron index
+ */
+ void Hexahedron::setIJK( size_t iCell )
+ {
+ size_t iNbCell = _grid->_coords[0].size() - 1;
+ size_t jNbCell = _grid->_coords[1].size() - 1;
+ _i = iCell % iNbCell;
+ _j = ( iCell % ( iNbCell * jNbCell )) / iNbCell;
+ _k = iCell / iNbCell / jNbCell;
+ }
+
+ //================================================================================
+ /*!
+ * \brief Initializes its data by given grid cell (countered from zero)
+ */
+ void Hexahedron::init( size_t iCell )
+ {
+ setIJK( iCell );
+ init( _i, _j, _k );
}
//================================================================================
/*!
- * \brief Initializes its data by given grid cell
+ * \brief Initializes its data by given grid cell nodes and intersections
*/
- void Hexahedron::init( size_t i, size_t j, size_t k )
+ void Hexahedron::init( size_t i, size_t j, size_t k, const Solid* solid )
{
_i = i; _j = j; _k = k;
+
+ if ( !solid )
+ solid = _grid->GetSolid();
+
// set nodes of grid to nodes of the hexahedron and
// count nodes at hexahedron corners located IN and ON geometry
_nbCornerNodes = _nbBndNodes = 0;
_origNodeInd = _grid->NodeIndex( i,j,k );
for ( int iN = 0; iN < 8; ++iN )
{
+ _hexNodes[iN]._isInternalFlags = 0;
+
_hexNodes[iN]._node = _grid->_nodes [ _origNodeInd + _nodeShift[iN] ];
_hexNodes[iN]._intPoint = _grid->_gridIntP[ _origNodeInd + _nodeShift[iN] ];
+
+ if ( _hexNodes[iN]._node && !solid->Contains( _hexNodes[iN]._node->GetShapeID() ))
+ _hexNodes[iN]._node = 0;
+ if ( _hexNodes[iN]._intPoint && !solid->ContainsAny( _hexNodes[iN]._intPoint->_faceIDs ))
+ _hexNodes[iN]._intPoint = 0;
+
_nbCornerNodes += bool( _hexNodes[iN]._node );
_nbBndNodes += bool( _hexNodes[iN]._intPoint );
}
_intNodes.clear();
_vIntNodes.clear();
- if ( _nbFaceIntNodes + _eIntPoints.size() > 0 &&
- _nbFaceIntNodes + _nbCornerNodes + _eIntPoints.size() > 3)
+ if ( _nbFaceIntNodes + _eIntPoints.size() > 0 &&
+ _nbFaceIntNodes + _eIntPoints.size() + _nbCornerNodes > 3)
{
_intNodes.reserve( 3 * _nbBndNodes + _nbFaceIntNodes + _eIntPoints.size() );
// this method can be called in parallel, so use own helper
SMESH_MesherHelper helper( *_grid->_helper->GetMesh() );
- // create sub-links (_splits) by splitting links with _fIntPoints
+ // Create sub-links (_Link::_splits) by splitting links with _Link::_fIntPoints
+ // ---------------------------------------------------------------
_Link split;
for ( int iLink = 0; iLink < 12; ++iLink )
{
_Link& link = _hexLinks[ iLink ];
- link._fIntNodes.resize( link._fIntPoints.size() );
+ link._fIntNodes.clear();
+ link._fIntNodes.reserve( link._fIntPoints.size() );
for ( size_t i = 0; i < link._fIntPoints.size(); ++i )
- {
- _intNodes.push_back( _Node( 0, link._fIntPoints[i] ));
- link._fIntNodes[ i ] = & _intNodes.back();
- }
+ if ( solid->ContainsAny( link._fIntPoints[i]->_faceIDs ))
+ {
+ _intNodes.push_back( _Node( 0, link._fIntPoints[i] ));
+ link._fIntNodes.push_back( & _intNodes.back() );
+ }
link._splits.clear();
split._nodes[ 0 ] = link._nodes[0];
}
if ( checkTransition )
{
- if ( link._fIntPoints[i]->_faceIDs.size() > 1 || _eIntPoints.size() > 0 )
- isOut = isOutPoint( link, i, helper );
+ const vector< TGeomID >& faceIDs = link._fIntNodes[i]->_intPoint->_faceIDs;
+ if ( _grid->IsInternal( faceIDs.back() ))
+ isOut = false;
+ else if ( faceIDs.size() > 1 || _eIntPoints.size() > 0 )
+ isOut = isOutPoint( link, i, helper, solid );
else
- switch ( link._fIntPoints[i]->_transition ) {
- case Trans_OUT: isOut = true; break;
- case Trans_IN : isOut = false; break;
+ {
+ bool okTransi = _grid->IsCorrectTransition( faceIDs[0], solid );
+ switch ( link._fIntNodes[i]->FaceIntPnt()->_transition ) {
+ case Trans_OUT: isOut = okTransi; break;
+ case Trans_IN : isOut = !okTransi; break;
default:
- isOut = isOutPoint( link, i, helper );
+ isOut = isOutPoint( link, i, helper, solid );
}
+ }
}
}
if ( link._nodes[ 1 ]->Node() && split._nodes[ 0 ]->Node() && !isOut )
}
// Create _Node's at intersections with EDGEs.
-
+ // --------------------------------------------
+ // 1) add this->_eIntPoints to _Face::_eIntNodes
+ // 2) fill _intNodes and _vIntNodes
+ //
const double tol2 = _grid->_tol * _grid->_tol;
int facets[3], nbFacets, subEntity;
+ for ( int iF = 0; iF < 6; ++iF )
+ _hexQuads[ iF ]._eIntNodes.clear();
+
for ( size_t iP = 0; iP < _eIntPoints.size(); ++iP )
{
+ if ( !solid->ContainsAny( _eIntPoints[iP]->_faceIDs ))
+ continue;
nbFacets = getEntity( _eIntPoints[iP], facets, subEntity );
_Node* equalNode = 0;
switch( nbFacets ) {
equalNode = findEqualNode( link._fIntNodes, _eIntPoints[ iP ], tol2 );
if ( equalNode )
equalNode->Add( _eIntPoints[ iP ] );
+ else if ( link._splits.size() == 1 &&
+ link._splits[0]._nodes[0] &&
+ link._splits[0]._nodes[1] )
+ link._splits.clear(); // hex edge is divided by _eIntPoints[iP]
}
- else
+ //else
+ if ( !equalNode )
{
_intNodes.push_back( _Node( 0, _eIntPoints[ iP ]));
+ bool newNodeUsed = false;
for ( int iF = 0; iF < 2; ++iF )
{
_Face& quad = _hexQuads[ facets[iF] - SMESH_Block::ID_FirstF ];
}
else {
quad._eIntNodes.push_back( & _intNodes.back() );
+ newNodeUsed = true;
}
}
+ if ( !newNodeUsed )
+ _intNodes.pop_back();
}
break;
}
} // switch( nbFacets )
if ( nbFacets == 0 ||
- _grid->_shapes( _eIntPoints[ iP ]->_shapeID ).ShapeType() == TopAbs_VERTEX )
+ _grid->ShapeType( _eIntPoints[ iP ]->_shapeID ) == TopAbs_VERTEX )
{
equalNode = findEqualNode( _vIntNodes, _eIntPoints[ iP ], tol2 );
if ( equalNode ) {
}
} // loop on _eIntPoints
}
+
else if ( 3 < _nbCornerNodes && _nbCornerNodes < 8 ) // _nbFaceIntNodes == 0
{
_Link split;
}
}
}
+ return;
- }
- //================================================================================
- /*!
- * \brief Initializes its data by given grid cell (countered from zero)
- */
- void Hexahedron::init( size_t iCell )
- {
- size_t iNbCell = _grid->_coords[0].size() - 1;
- size_t jNbCell = _grid->_coords[1].size() - 1;
- _i = iCell % iNbCell;
- _j = ( iCell % ( iNbCell * jNbCell )) / iNbCell;
- _k = iCell / iNbCell / jNbCell;
- init( _i, _j, _k );
- }
+ } // init( _i, _j, _k )
//================================================================================
/*!
* \brief Compute mesh volumes resulted from intersection of the Hexahedron
*/
- void Hexahedron::ComputeElements()
+ void Hexahedron::ComputeElements( const Solid* solid, int solidIndex )
{
- Init();
+ if ( !solid )
+ {
+ solid = _grid->GetSolid();
+ if ( !_grid->_geometry.IsOneSolid() )
+ {
+ const vector< TGeomID >& solidIDs = getSolids();
+ if ( solidIDs.size() > 1 )
+ {
+ for ( size_t i = 0; i < solidIDs.size(); ++i )
+ {
+ solid = _grid->GetSolid( solidIDs[i] );
+ ComputeElements( solid, i );
+ if ( !_volumeDefs._nodes.empty() && i < solidIDs.size() - 1 )
+ _volumeDefs.SetNext( new _volumeDef( _volumeDefs ));
+ }
+ return;
+ }
+ solid = _grid->GetSolid( solidIDs[0] );
+ }
+ }
+
+ init( _i, _j, _k, solid ); // get nodes and intersections from grid nodes and split links
int nbIntersections = _nbFaceIntNodes + _eIntPoints.size();
if ( _nbCornerNodes + nbIntersections < 4 )
return;
if ( _nbBndNodes == _nbCornerNodes && nbIntersections == 0 && isInHole() )
- return;
+ return; // cell is in a hole
+
+ IsInternalFlag intFlag = IS_NOT_INTERNAL;
+ if ( solid->HasInternalFaces() && this->isCutByInternalFace( intFlag ))
+ {
+ for ( _SplitIterator it( _hexLinks ); it.More(); it.Next() )
+ {
+ if ( compute( solid, intFlag ))
+ _volumeDefs.SetNext( new _volumeDef( _volumeDefs ));
+ }
+ }
+ else
+ {
+ if ( solidIndex >= 0 )
+ intFlag = IS_CUT_BY_INTERNAL_FACE;
+ compute( solid, intFlag );
+ }
+ }
+
+ //================================================================================
+ /*!
+ * \brief Compute mesh volumes resulted from intersection of the Hexahedron
+ */
+ bool Hexahedron::compute( const Solid* solid, const IsInternalFlag intFlag )
+ {
_polygons.clear();
_polygons.reserve( 20 );
+ for ( int iN = 0; iN < 8; ++iN )
+ _hexNodes[iN]._usedInFace = 0;
+
// Create polygons from quadrangles
// --------------------------------
if (( nbSplits == 1 ) &&
( quad._eIntNodes.empty() ||
splits[0].FirstNode()->IsLinked( splits[0].LastNode()->_intPoint )))
- //( quad._eIntNodes.empty() || _nbCornerNodes + nbIntersections > 6 ))
+ //( quad._eIntNodes.empty() || _nbCornerNodes + nbIntersections > 6 ))
nbSplits = 0;
-#ifdef _DEBUG_
for ( size_t iP = 0; iP < quad._eIntNodes.size(); ++iP )
if ( quad._eIntNodes[ iP ]->IsUsedInFace( polygon ))
quad._eIntNodes[ iP ]->_usedInFace = 0;
-#endif
+
size_t nbUsedEdgeNodes = 0;
_Face* prevPolyg = 0; // polygon previously created from this quad
n1 = split.FirstNode();
if ( n1 == n2 &&
n1->_intPoint &&
- n1->_intPoint->_faceIDs.size() > 1 )
+ (( n1->_intPoint->_faceIDs.size() > 1 && isImplementEdges() ) ||
+ ( n1->_isInternalFlags )))
{
// n1 is at intersection with EDGE
if ( findChainOnEdge( splits, polygon->_links.back(), split, iS, quad, chainNodes ))
{
for ( size_t i = 1; i < chainNodes.size(); ++i )
polygon->AddPolyLink( chainNodes[i-1], chainNodes[i], prevPolyg );
- prevPolyg = polygon;
- n2 = chainNodes.back();
- continue;
+ if ( chainNodes.back() != n1 ) // not a partial cut by INTERNAL FACE
+ {
+ prevPolyg = polygon;
+ n2 = chainNodes.back();
+ continue;
+ }
}
}
else if ( n1 != n2 )
freeLinks.push_back( & polygon._links[ iL ]);
}
int nbFreeLinks = freeLinks.size();
- if ( nbFreeLinks == 1 ) return;
+ if ( nbFreeLinks == 1 ) return false;
// put not used intersection nodes to _vIntNodes
int nbVertexNodes = 0; // nb not used vertex nodes
_vIntNodes[ iN ]->_usedInFace = &polygon;
chainNodes.push_back( _vIntNodes[ iN ] );
}
- if ( chainNodes.size() > 1 )
+ if ( chainNodes.size() > 1 &&
+ curFace != _grid->PseudoIntExtFaceID() ) /////// TODO
{
sortVertexNodes( chainNodes, curNode, curFace );
}
if ( polygon._links.size() < 2 ||
polygon._links[0].LastNode() != polygon._links.back().FirstNode() )
- return; // closed polygon not found -> invalid polyhedron
+ return false; // closed polygon not found -> invalid polyhedron
if ( polygon._links.size() == 2 )
{
} // end of case ( polygon._links.size() > 2 )
} // while ( nbFreeLinks > 0 )
- if ( ! checkPolyhedronSize() )
- {
- return;
- }
+ // check volume size
+ _hasTooSmall = ! checkPolyhedronSize( intFlag & IS_CUT_BY_INTERNAL_FACE );
for ( size_t i = 0; i < 8; ++i )
if ( _hexNodes[ i ]._intPoint == &ipTmp )
_hexNodes[ i ]._intPoint = 0;
+ if ( _hasTooSmall )
+ return false; // too small volume
+
// create a classic cell if possible
int nbPolygons = 0;
_volumeDefs._nodes.push_back( _polygons[ iF ]._links[ iL ].FirstNode() );
}
}
+ _volumeDefs._solidID = solid->ID();
+
+ return !_volumeDefs._nodes.empty();
}
//================================================================================
/*!
{
SMESHDS_Mesh* mesh = helper.GetMeshDS();
- size_t nbCells[3] = { _grid->_coords[0].size() - 1,
- _grid->_coords[1].size() - 1,
- _grid->_coords[2].size() - 1 };
- const size_t nbGridCells = nbCells[0] * nbCells[1] * nbCells[2];
+ CellsAroundLink c( _grid, 0 );
+ const size_t nbGridCells = c._nbCells[0] * c._nbCells[1] * c._nbCells[2];
vector< Hexahedron* > allHexa( nbGridCells, 0 );
int nbIntHex = 0;
// set intersection nodes from GridLine's to links of allHexa
- int i,j,k, iDirOther[3][2] = {{ 1,2 },{ 0,2 },{ 0,1 }};
+ int i,j,k, cellIndex;
for ( int iDir = 0; iDir < 3; ++iDir )
{
- int dInd[4][3] = { {0,0,0}, {0,0,0}, {0,0,0}, {0,0,0} };
- dInd[1][ iDirOther[iDir][0] ] = -1;
- dInd[2][ iDirOther[iDir][1] ] = -1;
- dInd[3][ iDirOther[iDir][0] ] = -1; dInd[3][ iDirOther[iDir][1] ] = -1;
// loop on GridLine's parallel to iDir
LineIndexer lineInd = _grid->GetLineIndexer( iDir );
+ CellsAroundLink fourCells( _grid, iDir );
for ( ; lineInd.More(); ++lineInd )
{
GridLine& line = _grid->_lines[ iDir ][ lineInd.LineIndex() ];
{
// if ( !ip->_node ) continue; // intersection at a grid node
lineInd.SetIndexOnLine( ip->_indexOnLine );
+ fourCells.Init( lineInd.I(), lineInd.J(), lineInd.K() );
for ( int iL = 0; iL < 4; ++iL ) // loop on 4 cells sharing a link
{
- i = int(lineInd.I()) + dInd[iL][0];
- j = int(lineInd.J()) + dInd[iL][1];
- k = int(lineInd.K()) + dInd[iL][2];
- if ( i < 0 || i >= (int) nbCells[0] ||
- j < 0 || j >= (int) nbCells[1] ||
- k < 0 || k >= (int) nbCells[2] ) continue;
-
- const size_t hexIndex = _grid->CellIndex( i,j,k );
- Hexahedron *& hex = allHexa[ hexIndex ];
+ if ( !fourCells.GetCell( iL, i,j,k, cellIndex ))
+ continue;
+ Hexahedron *& hex = allHexa[ cellIndex ];
if ( !hex)
{
- hex = new Hexahedron( *this );
- hex->_i = i;
- hex->_j = j;
- hex->_k = k;
+ hex = new Hexahedron( *this, i, j, k, cellIndex );
++nbIntHex;
}
const int iLink = iL + iDir * 4;
// implement geom edges into the mesh
addEdges( helper, allHexa, edge2faceIDsMap );
- // add not split hexadrons to the mesh
+ // add not split hexahedra to the mesh
int nbAdded = 0;
- vector< Hexahedron* > intHexa( nbIntHex, (Hexahedron*) NULL );
+ vector< Hexahedron* > intHexa; intHexa.reserve( nbIntHex );
+ vector< const SMDS_MeshElement* > boundaryVolumes; boundaryVolumes.reserve( nbIntHex * 1.1 );
for ( size_t i = 0; i < allHexa.size(); ++i )
{
+ // initialize this by not cut allHexa[ i ]
Hexahedron * & hex = allHexa[ i ];
- if ( hex )
+ if ( hex ) // split hexahedron
{
intHexa.push_back( hex );
if ( hex->_nbFaceIntNodes > 0 || hex->_eIntPoints.size() > 0 )
- continue; // treat intersected hex later
+ continue; // treat intersected hex later in parallel
this->init( hex->_i, hex->_j, hex->_k );
}
else
- {
- this->init( i );
+ {
+ this->init( i ); // == init(i,j,k)
}
if (( _nbCornerNodes == 8 ) &&
( _nbBndNodes < _nbCornerNodes || !isInHole() ))
_hexNodes[3].Node(), _hexNodes[1].Node(),
_hexNodes[4].Node(), _hexNodes[6].Node(),
_hexNodes[7].Node(), _hexNodes[5].Node() );
- mesh->SetMeshElementOnShape( el, helper.GetSubShapeID() );
+ TGeomID solidID = 0;
+ if ( _nbBndNodes < _nbCornerNodes )
+ {
+ for ( int iN = 0; iN < 8 && !solidID; ++iN )
+ if ( !_hexNodes[iN]._intPoint ) // no intersection
+ solidID = _hexNodes[iN].Node()->GetShapeID();
+ }
+ else
+ {
+ solidID = getSolids()[0];
+ }
+ mesh->SetMeshElementOnShape( el, solidID );
++nbAdded;
if ( hex )
intHexa.pop_back();
+ if ( _grid->_toCreateFaces && _nbBndNodes >= 3 )
+ {
+ boundaryVolumes.push_back( el );
+ el->setIsMarked( true );
+ }
}
- else if ( _nbCornerNodes > 3 && !hex )
+ else if ( _nbCornerNodes > 3 && !hex )
{
// all intersection of hex with geometry are at grid nodes
- hex = new Hexahedron( *this );
- hex->_i = _i;
- hex->_j = _j;
- hex->_k = _k;
+ hex = new Hexahedron( *this, _i, _j, _k, i );
intHexa.push_back( hex );
}
}
tbb::simple_partitioner()); // ComputeElements() is called here
for ( size_t i = 0; i < intHexa.size(); ++i )
if ( Hexahedron * hex = intHexa[ i ] )
- nbAdded += hex->addElements( helper );
+ nbAdded += hex->addVolumes( helper );
#else
for ( size_t i = 0; i < intHexa.size(); ++i )
if ( Hexahedron * hex = intHexa[ i ] )
{
hex->ComputeElements();
- nbAdded += hex->addElements( helper );
+ nbAdded += hex->addVolumes( helper );
}
#endif
+ // fill boundaryVolumes with volumes neighboring too small skipped volumes
+ if ( _grid->_toCreateFaces )
+ {
+ for ( size_t i = 0; i < intHexa.size(); ++i )
+ if ( Hexahedron * hex = intHexa[ i ] )
+ hex->getBoundaryElems( boundaryVolumes );
+ }
+
+ // create boundary mesh faces
+ addFaces( helper, boundaryVolumes );
+
+ // create mesh edges
+ addSegments( helper, edge2faceIDsMap );
+
for ( size_t i = 0; i < allHexa.size(); ++i )
if ( allHexa[ i ] )
delete allHexa[ i ];
const double tol = _grid->_tol;
E_IntersectPoint ip;
+ TColStd_MapOfInteger intEdgeIDs; // IDs of not shared INTERNAL EDGES
+
// Intersect EDGEs with the planes
map< TGeomID, vector< TGeomID > >::const_iterator e2fIt = edge2faceIDsMap.begin();
for ( ; e2fIt != edge2faceIDsMap.end(); ++e2fIt )
{
const TGeomID edgeID = e2fIt->first;
- const TopoDS_Edge & E = TopoDS::Edge( _grid->_shapes( edgeID ));
+ const TopoDS_Edge & E = TopoDS::Edge( _grid->Shape( edgeID ));
BRepAdaptor_Curve curve( E );
- TopoDS_Vertex v1 = helper.IthVertex( 0, E, false );
- TopoDS_Vertex v2 = helper.IthVertex( 1, E, false );
+ TopoDS_Vertex v1 = helper.IthVertex( 0, E, false );
+ TopoDS_Vertex v2 = helper.IthVertex( 1, E, false );
ip._faceIDs = e2fIt->second;
ip._shapeID = edgeID;
- // discretize the EGDE
+ bool isInternal = ( ip._faceIDs.size() == 1 && _grid->IsInternal( edgeID ));
+ if ( isInternal )
+ {
+ intEdgeIDs.Add( edgeID );
+ intEdgeIDs.Add( _grid->ShapeID( v1 ));
+ intEdgeIDs.Add( _grid->ShapeID( v2 ));
+ }
+
+ // discretize the EDGE
GCPnts_UniformDeflection discret( curve, deflection, true );
if ( !discret.IsDone() || discret.NbPoints() < 2 )
continue;
// perform intersection
+ E_IntersectPoint* eip, *vip;
for ( int iDirZ = 0; iDirZ < 3; ++iDirZ )
{
GridPlanes& planes = pln[ iDirZ ];
locateValue( iY1, ip._uvw[iDirY], _grid->_coords[ iDirY ], dIJK[ iDirY ], tol );
locateValue( iZ1, ip._uvw[iDirZ], _grid->_coords[ iDirZ ], dIJK[ iDirZ ], tol );
- int ijk[3]; // grid index where a segment intersect a plane
+ int ijk[3]; // grid index where a segment intersects a plane
ijk[ iDirX ] = iX1;
ijk[ iDirY ] = iY1;
ijk[ iDirZ ] = iZ1;
if ( iDirZ == 0 )
{
ip._point = p1;
- ip._shapeID = _grid->_shapes.Add( v1 );
- _grid->_edgeIntP.push_back( ip );
- if ( !addIntersection( _grid->_edgeIntP.back(), hexes, ijk, d000 ))
- _grid->_edgeIntP.pop_back();
+ ip._shapeID = _grid->ShapeID( v1 );
+ vip = _grid->Add( ip );
+ if ( isInternal )
+ vip->_faceIDs.push_back( _grid->PseudoIntExtFaceID() );
+ if ( !addIntersection( vip, hexes, ijk, d000 ))
+ _grid->Remove( vip );
ip._shapeID = edgeID;
}
for ( int iP = 2; iP <= discret.NbPoints(); ++iP )
ijk[ iDirZ ] = iZ;
// add ip to hex "above" the plane
- _grid->_edgeIntP.push_back( ip );
+ eip = _grid->Add( ip );
+ if ( isInternal )
+ eip->_faceIDs.push_back( _grid->PseudoIntExtFaceID() );
dIJK[ iDirZ ] = 0;
- bool added = addIntersection(_grid->_edgeIntP.back(), hexes, ijk, dIJK);
+ bool added = addIntersection( eip, hexes, ijk, dIJK);
// add ip to hex "below" the plane
ijk[ iDirZ ] = iZ-1;
- if ( !addIntersection( _grid->_edgeIntP.back(), hexes, ijk, dIJK ) &&
- !added)
- _grid->_edgeIntP.pop_back();
+ if ( !addIntersection( eip, hexes, ijk, dIJK ) &&
+ !added )
+ _grid->Remove( eip );
}
}
iZ1 = iZ2;
// add the 2nd vertex point to a hexahedron
if ( iDirZ == 0 )
{
- ip._shapeID = _grid->_shapes.Add( v2 );
- ip._point = p1;
+ ip._point = p1;
+ ip._shapeID = _grid->ShapeID( v2 );
_grid->ComputeUVW( p1, ip._uvw );
locateValue( ijk[iDirX], ip._uvw[iDirX], _grid->_coords[iDirX], dIJK[iDirX], tol );
locateValue( ijk[iDirY], ip._uvw[iDirY], _grid->_coords[iDirY], dIJK[iDirY], tol );
ijk[ iDirZ ] = iZ1;
- _grid->_edgeIntP.push_back( ip );
- if ( !addIntersection( _grid->_edgeIntP.back(), hexes, ijk, d000 ))
- _grid->_edgeIntP.pop_back();
+ bool sameV = ( v1.IsSame( v2 ));
+ if ( !sameV )
+ vip = _grid->Add( ip );
+ if ( isInternal && !sameV )
+ vip->_faceIDs.push_back( _grid->PseudoIntExtFaceID() );
+ if ( !addIntersection( vip, hexes, ijk, d000 ) && !sameV )
+ _grid->Remove( vip );
ip._shapeID = edgeID;
}
} // loop on 3 grid directions
} // loop on EDGEs
+
+ if ( intEdgeIDs.Size() > 0 )
+ cutByExtendedInternal( hexes, intEdgeIDs );
+
+ return;
+ }
+
+ //================================================================================
+ /*!
+ * \brief Fully cut hexes that are partially cut by INTERNAL FACE.
+ * Cut them by extended INTERNAL FACE.
+ */
+ void Hexahedron::cutByExtendedInternal( std::vector< Hexahedron* >& hexes,
+ const TColStd_MapOfInteger& intEdgeIDs )
+ {
+ IntAna_IntConicQuad intersection;
+ SMESHDS_Mesh* meshDS = _grid->_helper->GetMeshDS();
+ const double tol2 = _grid->_tol * _grid->_tol;
+
+ for ( size_t iH = 0; iH < hexes.size(); ++iH )
+ {
+ Hexahedron* hex = hexes[ iH ];
+ if ( !hex || hex->_eIntPoints.size() < 2 )
+ continue;
+ if ( !intEdgeIDs.Contains( hex->_eIntPoints.back()->_shapeID ))
+ continue;
+
+ // get 3 points on INTERNAL FACE to construct a cutting plane
+ gp_Pnt p1 = hex->_eIntPoints[0]->_point;
+ gp_Pnt p2 = hex->_eIntPoints[1]->_point;
+ gp_Pnt p3 = hex->mostDistantInternalPnt( iH, p1, p2 );
+
+ gp_Vec norm = gp_Vec( p1, p2 ) ^ gp_Vec( p1, p3 );
+ gp_Pln pln;
+ try {
+ pln = gp_Pln( p1, norm );
+ }
+ catch(...)
+ {
+ continue;
+ }
+
+ TGeomID intFaceID = hex->_eIntPoints.back()->_faceIDs.front(); // FACE being "extended"
+ TGeomID solidID = _grid->GetSolid( intFaceID )->ID();
+
+ // cut links by the plane
+ //bool isCut = false;
+ for ( int iLink = 0; iLink < 12; ++iLink )
+ {
+ _Link& link = hex->_hexLinks[ iLink ];
+ if ( !link._fIntPoints.empty() )
+ {
+ // if ( link._fIntPoints[0]->_faceIDs.back() == _grid->PseudoIntExtFaceID() )
+ // isCut = true;
+ continue; // already cut link
+ }
+ if ( !link._nodes[0]->Node() ||
+ !link._nodes[1]->Node() )
+ continue; // outside link
+
+ if ( link._nodes[0]->IsOnFace( intFaceID ))
+ {
+ if ( link._nodes[0]->_intPoint->_faceIDs.back() != _grid->PseudoIntExtFaceID() )
+ if ( p1.SquareDistance( link._nodes[0]->Point() ) < tol2 ||
+ p2.SquareDistance( link._nodes[0]->Point() ) < tol2 )
+ link._nodes[0]->_intPoint->_faceIDs.push_back( _grid->PseudoIntExtFaceID() );
+ continue; // link is cut by FACE being "extended"
+ }
+ if ( link._nodes[1]->IsOnFace( intFaceID ))
+ {
+ if ( link._nodes[1]->_intPoint->_faceIDs.back() != _grid->PseudoIntExtFaceID() )
+ if ( p1.SquareDistance( link._nodes[1]->Point() ) < tol2 ||
+ p2.SquareDistance( link._nodes[1]->Point() ) < tol2 )
+ link._nodes[1]->_intPoint->_faceIDs.push_back( _grid->PseudoIntExtFaceID() );
+ continue; // link is cut by FACE being "extended"
+ }
+ gp_Pnt p4 = link._nodes[0]->Point();
+ gp_Pnt p5 = link._nodes[1]->Point();
+ gp_Lin line( p4, gp_Vec( p4, p5 ));
+
+ intersection.Perform( line, pln );
+ if ( !intersection.IsDone() ||
+ intersection.IsInQuadric() ||
+ intersection.IsParallel() ||
+ intersection.NbPoints() < 1 )
+ continue;
+
+ double u = intersection.ParamOnConic(1);
+ if ( u + _grid->_tol < 0 )
+ continue;
+ int iDir = iLink / 4;
+ int index = (&hex->_i)[iDir];
+ double linkLen = _grid->_coords[iDir][index+1] - _grid->_coords[iDir][index];
+ if ( u - _grid->_tol > linkLen )
+ continue;
+
+ if ( u < _grid->_tol ||
+ u > linkLen - _grid->_tol ) // intersection at grid node
+ {
+ int i = ! ( u < _grid->_tol ); // [0,1]
+ int iN = link._nodes[ i ] - hex->_hexNodes; // [0-7]
+
+ const F_IntersectPoint * & ip = _grid->_gridIntP[ hex->_origNodeInd + _nodeShift[iN] ];
+ if ( !ip )
+ {
+ ip = _grid->_extIntPool.getNew();
+ ip->_faceIDs.push_back( _grid->PseudoIntExtFaceID() );
+ //ip->_transition = Trans_INTERNAL;
+ }
+ else if ( ip->_faceIDs.back() != _grid->PseudoIntExtFaceID() )
+ {
+ ip->_faceIDs.push_back( _grid->PseudoIntExtFaceID() );
+ }
+ hex->_nbFaceIntNodes++;
+ //isCut = true;
+ }
+ else
+ {
+ const gp_Pnt& p = intersection.Point( 1 );
+ F_IntersectPoint* ip = _grid->_extIntPool.getNew();
+ ip->_node = meshDS->AddNode( p.X(), p.Y(), p.Z() );
+ ip->_faceIDs.push_back( _grid->PseudoIntExtFaceID() );
+ ip->_transition = Trans_INTERNAL;
+ meshDS->SetNodeInVolume( ip->_node, solidID );
+
+ CellsAroundLink fourCells( _grid, iDir );
+ fourCells.Init( hex->_i, hex->_j, hex->_k, iLink );
+ int i,j,k, cellIndex;
+ for ( int iC = 0; iC < 4; ++iC ) // loop on 4 cells sharing the link
+ {
+ if ( !fourCells.GetCell( iC, i,j,k, cellIndex ))
+ continue;
+ Hexahedron * h = hexes[ cellIndex ];
+ if ( !h )
+ h = hexes[ cellIndex ] = new Hexahedron( *this, i, j, k, cellIndex );
+ const int iL = iC + iDir * 4;
+ h->_hexLinks[iL]._fIntPoints.push_back( ip );
+ h->_nbFaceIntNodes++;
+ //isCut = true;
+ }
+ }
+ }
+
+ // if ( isCut )
+ // for ( size_t i = 0; i < hex->_eIntPoints.size(); ++i )
+ // {
+ // if ( _grid->IsInternal( hex->_eIntPoints[i]->_shapeID ) &&
+ // ! hex->_eIntPoints[i]->IsOnFace( _grid->PseudoIntExtFaceID() ))
+ // hex->_eIntPoints[i]->_faceIDs.push_back( _grid->PseudoIntExtFaceID() );
+ // }
+ continue;
+
+ } // loop on all hexes
+ return;
+ }
+
+ //================================================================================
+ /*!
+ * \brief Return intersection point on INTERNAL FACE most distant from given ones
+ */
+ gp_Pnt Hexahedron::mostDistantInternalPnt( int hexIndex, const gp_Pnt& p1, const gp_Pnt& p2 )
+ {
+ gp_Pnt resultPnt = p1;
+
+ double maxDist2 = 0;
+ for ( int iLink = 0; iLink < 12; ++iLink ) // check links
+ {
+ _Link& link = _hexLinks[ iLink ];
+ for ( size_t i = 0; i < link._fIntPoints.size(); ++i )
+ if ( _grid->PseudoIntExtFaceID() != link._fIntPoints[i]->_faceIDs[0] &&
+ _grid->IsInternal( link._fIntPoints[i]->_faceIDs[0] ) &&
+ link._fIntPoints[i]->_node )
+ {
+ gp_Pnt p = SMESH_NodeXYZ( link._fIntPoints[i]->_node );
+ double d = p1.SquareDistance( p );
+ if ( d > maxDist2 )
+ {
+ resultPnt = p;
+ maxDist2 = d;
+ }
+ else
+ {
+ d = p2.SquareDistance( p );
+ if ( d > maxDist2 )
+ {
+ resultPnt = p;
+ maxDist2 = d;
+ }
+ }
+ }
+ }
+ setIJK( hexIndex );
+ _origNodeInd = _grid->NodeIndex( _i,_j,_k );
+
+ for ( size_t iN = 0; iN < 8; ++iN ) // check corners
+ {
+ _hexNodes[iN]._node = _grid->_nodes [ _origNodeInd + _nodeShift[iN] ];
+ _hexNodes[iN]._intPoint = _grid->_gridIntP[ _origNodeInd + _nodeShift[iN] ];
+ if ( _hexNodes[iN]._intPoint )
+ for ( size_t iF = 0; iF < _hexNodes[iN]._intPoint->_faceIDs.size(); ++iF )
+ {
+ if ( _grid->IsInternal( _hexNodes[iN]._intPoint->_faceIDs[iF]))
+ {
+ gp_Pnt p = SMESH_NodeXYZ( _hexNodes[iN]._node );
+ double d = p1.SquareDistance( p );
+ if ( d > maxDist2 )
+ {
+ resultPnt = p;
+ maxDist2 = d;
+ }
+ else
+ {
+ d = p2.SquareDistance( p );
+ if ( d > maxDist2 )
+ {
+ resultPnt = p;
+ maxDist2 = d;
+ }
+ }
+ }
+ }
+ }
+ if ( maxDist2 < _grid->_tol * _grid->_tol )
+ return p1;
+
+ return resultPnt;
}
//================================================================================
{
enum { X = 1, Y = 2, Z = 4 }; // == 001, 010, 100
int nbFacets = 0;
- int vertex = 0, egdeMask = 0;
+ int vertex = 0, edgeMask = 0;
if ( Abs( _grid->_coords[0][ _i ] - ip->_uvw[0] ) < _grid->_tol ) {
facets[ nbFacets++ ] = SMESH_Block::ID_F0yz;
- egdeMask |= X;
+ edgeMask |= X;
}
else if ( Abs( _grid->_coords[0][ _i+1 ] - ip->_uvw[0] ) < _grid->_tol ) {
facets[ nbFacets++ ] = SMESH_Block::ID_F1yz;
vertex |= X;
- egdeMask |= X;
+ edgeMask |= X;
}
if ( Abs( _grid->_coords[1][ _j ] - ip->_uvw[1] ) < _grid->_tol ) {
facets[ nbFacets++ ] = SMESH_Block::ID_Fx0z;
- egdeMask |= Y;
+ edgeMask |= Y;
}
else if ( Abs( _grid->_coords[1][ _j+1 ] - ip->_uvw[1] ) < _grid->_tol ) {
facets[ nbFacets++ ] = SMESH_Block::ID_Fx1z;
vertex |= Y;
- egdeMask |= Y;
+ edgeMask |= Y;
}
if ( Abs( _grid->_coords[2][ _k ] - ip->_uvw[2] ) < _grid->_tol ) {
facets[ nbFacets++ ] = SMESH_Block::ID_Fxy0;
- egdeMask |= Z;
+ edgeMask |= Z;
}
else if ( Abs( _grid->_coords[2][ _k+1 ] - ip->_uvw[2] ) < _grid->_tol ) {
facets[ nbFacets++ ] = SMESH_Block::ID_Fxy1;
vertex |= Z;
- egdeMask |= Z;
+ edgeMask |= Z;
}
switch ( nbFacets )
{ SMESH_Block::ID_Ex00, 0, SMESH_Block::ID_Ex10, 0,
SMESH_Block::ID_Ex01, 0, SMESH_Block::ID_Ex11 }
};
- switch ( egdeMask ) {
+ switch ( edgeMask ) {
case X | Y: sub = edge[ 0 ][ vertex ]; break;
case X | Z: sub = edge[ 1 ][ vertex ]; break;
default: sub = edge[ 2 ][ vertex ];
/*!
* \brief Adds intersection with an EDGE
*/
- bool Hexahedron::addIntersection( const E_IntersectPoint& ip,
+ bool Hexahedron::addIntersection( const E_IntersectPoint* ip,
vector< Hexahedron* >& hexes,
int ijk[], int dIJK[] )
{
};
for ( int i = 0; i < 4; ++i )
{
- if ( /*0 <= hexIndex[i] &&*/ hexIndex[i] < hexes.size() && hexes[ hexIndex[i] ] )
+ if ( hexIndex[i] < hexes.size() && hexes[ hexIndex[i] ] )
{
Hexahedron* h = hexes[ hexIndex[i] ];
- // check if ip is really inside the hex
+ h->_eIntPoints.reserve(2);
+ h->_eIntPoints.push_back( ip );
+ added = true;
#ifdef _DEBUG_
- if ( h->isOutParam( ip._uvw ))
+ // check if ip is really inside the hex
+ if ( h->isOutParam( ip->_uvw ))
throw SALOME_Exception("ip outside a hex");
#endif
- h->_eIntPoints.push_back( & ip );
- added = true;
}
}
return added;
/*!
* \brief Finds nodes on the same EDGE as the first node of avoidSplit.
*
- * This function is for a case where an EDGE lies on a quad which lies on a FACE
- * so that a part of quad in ON and another part in IN
+ * This function is for
+ * 1) a case where an EDGE lies on a quad which lies on a FACE
+ * so that a part of quad in ON and another part is IN
+ * 2) INTERNAL FACE passes through the 1st node of avoidSplit
*/
bool Hexahedron::findChainOnEdge( const vector< _OrientedLink >& splits,
const _OrientedLink& prevSplit,
_Face& quad,
vector<_Node*>& chn )
{
- if ( !isImplementEdges() )
- return false;
-
_Node* pn1 = prevSplit.FirstNode();
_Node* pn2 = prevSplit.LastNode();
int avoidFace = pn1->IsLinked( pn2->_intPoint ); // FACE under the quad
if ( avoidFace < 1 && pn1->_intPoint )
return false;
- _Node* n, *stopNode = avoidSplit.LastNode();
+ _Node* n = 0, *stopNode = avoidSplit.LastNode();
chn.clear();
- if ( !quad._eIntNodes.empty() )
+ if ( !quad._eIntNodes.empty() ) // connect pn2 with EDGE intersections
{
chn.push_back( pn2 );
bool found;
}
int i;
- for ( i = splits.size()-1; i >= 0; --i )
+ for ( i = splits.size()-1; i >= 0; --i ) // connect new pn2 (at _eIntNodes) with a split
{
if ( !splits[i] )
continue;
break;
n = 0;
}
- if ( n && n != stopNode)
+ if ( n && n != stopNode )
{
if ( chn.empty() )
chn.push_back( pn2 );
iS = i-1;
return true;
}
+ else if ( !chn.empty() && chn.back()->_isInternalFlags )
+ {
+ // INTERNAL FACE partially cuts the quad
+ for ( int i = chn.size() - 2; i >= 0; --i )
+ chn.push_back( chn[ i ]);
+ return true;
+ }
return false;
}
//================================================================================
/*!
* \brief Checks transition at the ginen intersection node of a link
*/
- bool Hexahedron::isOutPoint( _Link& link, int iP, SMESH_MesherHelper& helper ) const
+ bool Hexahedron::isOutPoint( _Link& link, int iP,
+ SMESH_MesherHelper& helper, const Solid* solid ) const
{
bool isOut = false;
- const bool moreIntPoints = ( iP+1 < (int) link._fIntPoints.size() );
+ if ( link._fIntNodes[iP]->faces().size() == 1 &&
+ _grid->IsInternal( link._fIntNodes[iP]->face(0) ))
+ return false;
+
+ const bool moreIntPoints = ( iP+1 < (int) link._fIntNodes.size() );
// get 2 _Node's
_Node* n1 = link._fIntNodes[ iP ];
// get all FACEs under n1 and n2
set< TGeomID > faceIDs;
- if ( moreIntPoints ) faceIDs.insert( link._fIntPoints[iP+1]->_faceIDs.begin(),
- link._fIntPoints[iP+1]->_faceIDs.end() );
+ if ( moreIntPoints ) faceIDs.insert( link._fIntNodes[iP+1]->faces().begin(),
+ link._fIntNodes[iP+1]->faces().end() );
if ( n2->_intPoint ) faceIDs.insert( n2->_intPoint->_faceIDs.begin(),
n2->_intPoint->_faceIDs.end() );
if ( faceIDs.empty() )
return false; // n2 is inside
if ( n1->_intPoint ) faceIDs.insert( n1->_intPoint->_faceIDs.begin(),
n1->_intPoint->_faceIDs.end() );
- faceIDs.insert( link._fIntPoints[iP]->_faceIDs.begin(),
- link._fIntPoints[iP]->_faceIDs.end() );
+ faceIDs.insert( link._fIntNodes[iP]->faces().begin(),
+ link._fIntNodes[iP]->faces().end() );
// get a point between 2 nodes
gp_Pnt p1 = n1->Point();
for ( ; faceID != faceIDs.end(); ++faceID )
{
// project pOnLink on a FACE
- if ( *faceID < 1 ) continue;
- const TopoDS_Face& face = TopoDS::Face( _grid->_shapes( *faceID ));
- GeomAPI_ProjectPointOnSurf& proj =
- helper.GetProjector( face, loc, 0.1*_grid->_tol );
+ if ( *faceID < 1 || !solid->Contains( *faceID )) continue;
+ const TopoDS_Face& face = TopoDS::Face( _grid->Shape( *faceID ));
+ GeomAPI_ProjectPointOnSurf& proj = helper.GetProjector( face, loc, 0.1*_grid->_tol );
gp_Pnt testPnt = pOnLink.Transformed( loc.Transformation().Inverted() );
proj.Perform( testPnt );
if ( proj.IsDone() && proj.NbPoints() > 0 )
{
- Quantity_Parameter u,v;
+ Standard_Real u,v;
proj.LowerDistanceParameters( u,v );
if ( proj.LowerDistance() <= 0.1 * _grid->_tol )
0.1*_grid->_tol,
normal ) < 3 )
{
- if ( face.Orientation() == TopAbs_REVERSED )
+ if ( solid->Orientation( face ) == TopAbs_REVERSED )
normal.Reverse();
gp_Vec v( proj.NearestPoint(), testPnt );
isOut = ( v * normal > 0 );
return;
// get shapes of the FACE
- const TopoDS_Face& face = TopoDS::Face( _grid->_shapes( faceID ));
+ const TopoDS_Face& face = TopoDS::Face( _grid->Shape( faceID ));
list< TopoDS_Edge > edges;
list< int > nbEdges;
int nbW = SMESH_Block::GetOrderedEdges (face, edges, nbEdges);
for ( int i = 0; i < 2; ++i )
{
TGeomID id = i==0 ?
- _grid->_shapes.FindIndex( *e ) :
- _grid->_shapes.FindIndex( SMESH_MesherHelper::IthVertex( 0, *e ));
+ _grid->ShapeID( *e ) :
+ _grid->ShapeID( SMESH_MesherHelper::IthVertex( 0, *e ));
if (( id > 0 ) &&
( std::find( &nShapeIds[0], nShapeIdsEnd, id ) != nShapeIdsEnd ))
{
list< TopoDS_Edge >::iterator e = edges.begin(), eMidOut = edges.end();
for ( ; e != edges.end(); ++e )
{
- if ( !_grid->_shapes.FindIndex( *e ))
+ if ( !_grid->ShapeID( *e ))
continue;
bool isOut = false;
gp_Pnt p;
else if ( eMidOut != edges.end() )
edges.splice( edges.end(), edges, edges.begin(), eMidOut );
- // sort nodes accoring to the order of edges
+ // sort nodes according to the order of edges
_Node* orderNodes [20];
//TGeomID orderShapeIDs[20];
size_t nbN = 0;
TGeomID id, *pID = 0;
for ( e = edges.begin(); e != edges.end(); ++e )
{
- if (( id = _grid->_shapes.FindIndex( SMESH_MesherHelper::IthVertex( 0, *e ))) &&
+ if (( id = _grid->ShapeID( SMESH_MesherHelper::IthVertex( 0, *e ))) &&
(( pID = std::find( &nShapeIds[0], nShapeIdsEnd, id )) != nShapeIdsEnd ))
{
//orderShapeIDs[ nbN ] = id;
orderNodes [ nbN++ ] = nodes[ pID - &nShapeIds[0] ];
*pID = -1;
}
- if (( id = _grid->_shapes.FindIndex( *e )) &&
+ if (( id = _grid->ShapeID( *e )) &&
(( pID = std::find( &nShapeIds[0], nShapeIdsEnd, id )) != nShapeIdsEnd ))
{
//orderShapeIDs[ nbN ] = id;
/*!
* \brief Adds computed elements to the mesh
*/
- int Hexahedron::addElements(SMESH_MesherHelper& helper)
+ int Hexahedron::addVolumes( SMESH_MesherHelper& helper )
{
+ F_IntersectPoint noIntPnt;
+ const bool toCheckNodePos = _grid->IsToCheckNodePos();
+
int nbAdded = 0;
// add elements resulted from hexahedron intersection
- //for ( size_t i = 0; i < _volumeDefs.size(); ++i )
+ for ( _volumeDef* volDef = &_volumeDefs; volDef; volDef = volDef->_next )
{
- vector< const SMDS_MeshNode* > nodes( _volumeDefs._nodes.size() );
+ vector< const SMDS_MeshNode* > nodes( volDef->_nodes.size() );
for ( size_t iN = 0; iN < nodes.size(); ++iN )
- if ( !( nodes[iN] = _volumeDefs._nodes[iN]->Node() ))
+ {
+ if ( !( nodes[iN] = volDef->_nodes[iN].Node() ))
{
- if ( const E_IntersectPoint* eip = _volumeDefs._nodes[iN]->EdgeIntPnt() )
- nodes[iN] = _volumeDefs._nodes[iN]->_intPoint->_node =
+ if ( const E_IntersectPoint* eip = volDef->_nodes[iN].EdgeIntPnt() )
+ {
+ nodes[iN] = volDef->_nodes[iN]._intPoint->_node =
helper.AddNode( eip->_point.X(),
eip->_point.Y(),
eip->_point.Z() );
+ if ( _grid->ShapeType( eip->_shapeID ) == TopAbs_VERTEX )
+ helper.GetMeshDS()->SetNodeOnVertex( nodes[iN], eip->_shapeID );
+ else
+ helper.GetMeshDS()->SetNodeOnEdge( nodes[iN], eip->_shapeID );
+ }
else
throw SALOME_Exception("Bug: no node at intersection point");
}
+ else if ( volDef->_nodes[iN]._intPoint &&
+ volDef->_nodes[iN]._intPoint->_node == volDef->_nodes[iN]._node )
+ {
+ // Update position of node at EDGE intersection;
+ // see comment to _Node::Add( E_IntersectPoint )
+ SMESHDS_Mesh* mesh = helper.GetMeshDS();
+ TGeomID shapeID = volDef->_nodes[iN].EdgeIntPnt()->_shapeID;
+ mesh->UnSetNodeOnShape( nodes[iN] );
+ if ( _grid->ShapeType( shapeID ) == TopAbs_VERTEX )
+ mesh->SetNodeOnVertex( nodes[iN], shapeID );
+ else
+ mesh->SetNodeOnEdge( nodes[iN], shapeID );
+ }
+ else if ( toCheckNodePos &&
+ !nodes[iN]->isMarked() &&
+ _grid->ShapeType( nodes[iN]->GetShapeID() ) == TopAbs_FACE )
+ {
+ _grid->SetOnShape( nodes[iN], noIntPnt, /*unset=*/true );
+ nodes[iN]->setIsMarked( true );
+ }
+ }
- if ( !_volumeDefs._quantities.empty() )
+ const SMDS_MeshElement* v = 0;
+ if ( !volDef->_quantities.empty() )
{
- helper.AddPolyhedralVolume( nodes, _volumeDefs._quantities );
+ v = helper.AddPolyhedralVolume( nodes, volDef->_quantities );
}
else
{
switch ( nodes.size() )
{
- case 8: helper.AddVolume( nodes[0],nodes[1],nodes[2],nodes[3],
- nodes[4],nodes[5],nodes[6],nodes[7] );
+ case 8: v = helper.AddVolume( nodes[0],nodes[1],nodes[2],nodes[3],
+ nodes[4],nodes[5],nodes[6],nodes[7] );
break;
- case 4: helper.AddVolume( nodes[0],nodes[1],nodes[2],nodes[3] );
+ case 4: v = helper.AddVolume( nodes[0],nodes[1],nodes[2],nodes[3] );
break;
- case 6: helper.AddVolume( nodes[0],nodes[1],nodes[2],nodes[3], nodes[4],nodes[5] );
+ case 6: v = helper.AddVolume( nodes[0],nodes[1],nodes[2],nodes[3],nodes[4],nodes[5] );
break;
- case 5:
- helper.AddVolume( nodes[0],nodes[1],nodes[2],nodes[3],nodes[4] );
+ case 5: v = helper.AddVolume( nodes[0],nodes[1],nodes[2],nodes[3],nodes[4] );
break;
}
}
- nbAdded += int ( _volumeDefs._nodes.size() > 0 );
+ if (( volDef->_volume = v ))
+ {
+ helper.GetMeshDS()->SetMeshElementOnShape( v, volDef->_solidID );
+ ++nbAdded;
+ }
}
return nbAdded;
if ( firstIntPnt )
{
hasLinks = true;
- allLinksOut = ( firstIntPnt->_transition == Trans_OUT );
+ allLinksOut = ( firstIntPnt->_transition == Trans_OUT &&
+ !_grid->IsShared( firstIntPnt->_faceIDs[0] ));
}
}
if ( hasLinks && allLinksOut )
return false;
}
+ //================================================================================
+ /*!
+ * \brief Check if a polyherdon has an edge lying on EDGE shared by strange FACE
+ * that will be meshed by other algo
+ */
+ bool Hexahedron::hasStrangeEdge() const
+ {
+ if ( _eIntPoints.size() < 2 )
+ return false;
+
+ TopTools_MapOfShape edges;
+ for ( size_t i = 0; i < _eIntPoints.size(); ++i )
+ {
+ if ( !_grid->IsStrangeEdge( _eIntPoints[i]->_shapeID ))
+ continue;
+ const TopoDS_Shape& s = _grid->Shape( _eIntPoints[i]->_shapeID );
+ if ( s.ShapeType() == TopAbs_EDGE )
+ {
+ if ( ! edges.Add( s ))
+ return true; // an EDGE encounters twice
+ }
+ else
+ {
+ PShapeIteratorPtr edgeIt = _grid->_helper->GetAncestors( s,
+ *_grid->_helper->GetMesh(),
+ TopAbs_EDGE );
+ while ( const TopoDS_Shape* edge = edgeIt->next() )
+ if ( ! edges.Add( *edge ))
+ return true; // an EDGE encounters twice
+ }
+ }
+ return false;
+ }
+
//================================================================================
/*!
* \brief Return true if a polyhedron passes _sizeThreshold criterion
*/
- bool Hexahedron::checkPolyhedronSize() const
+ bool Hexahedron::checkPolyhedronSize( bool cutByInternalFace ) const
{
+ if ( cutByInternalFace && !_grid->_toUseThresholdForInternalFaces )
+ {
+ // check if any polygon fully lies on shared/internal FACEs
+ for ( size_t iP = 0; iP < _polygons.size(); ++iP )
+ {
+ const _Face& polygon = _polygons[iP];
+ if ( polygon._links.empty() )
+ continue;
+ bool allNodesInternal = true;
+ for ( size_t iL = 0; iL < polygon._links.size() && allNodesInternal; ++iL )
+ {
+ _Node* n = polygon._links[ iL ].FirstNode();
+ allNodesInternal = (( n->IsCutByInternal() ) ||
+ ( n->_intPoint && _grid->IsAnyShared( n->_intPoint->_faceIDs )));
+ }
+ if ( allNodesInternal )
+ return true;
+ }
+ }
+ if ( this->hasStrangeEdge() )
+ return true;
+
double volume = 0;
for ( size_t iP = 0; iP < _polygons.size(); ++iP )
{
double initVolume = _sideLength[0] * _sideLength[1] * _sideLength[2];
- return volume > initVolume / _sizeThreshold;
+ return volume > initVolume / _grid->_sizeThreshold;
}
//================================================================================
/*!
}
}
if ( nbN == 8 )
- _volumeDefs.set( &nodes[0], 8 );
+ _volumeDefs.Set( &nodes[0], 8 );
return nbN == 8;
}
if ( tria->_links[i]._link == link )
{
nodes[3] = tria->_links[(i+1)%3].LastNode();
- _volumeDefs.set( &nodes[0], 4 );
+ _volumeDefs.Set( &nodes[0], 4 );
return true;
}
}
}
if ( nbN == 6 )
- _volumeDefs.set( &nodes[0], 6 );
+ _volumeDefs.Set( &nodes[0], 6 );
return ( nbN == 6 );
}
if ( tria->_links[i]._link == link )
{
nodes[4] = tria->_links[(i+1)%3].LastNode();
- _volumeDefs.set( &nodes[0], 5 );
+ _volumeDefs.Set( &nodes[0], 5 );
return true;
}
}
//================================================================================
/*!
- * \brief Classify a point by grid paremeters
+ * \brief Classify a point by grid parameters
*/
bool Hexahedron::isOutParam(const double uvw[3]) const
{
( _grid->_coords[2][ _k ] - _grid->_tol > uvw[2] ) ||
( _grid->_coords[2][ _k+1 ] + _grid->_tol < uvw[2] ));
}
+ //================================================================================
+ /*!
+ * \brief Divide a polygon into triangles and modify accordingly an adjacent polyhedron
+ */
+ void splitPolygon( const SMDS_MeshElement* polygon,
+ SMDS_VolumeTool & volume,
+ const int facetIndex,
+ const TGeomID faceID,
+ const TGeomID solidID,
+ SMESH_MeshEditor::ElemFeatures& face,
+ SMESH_MeshEditor& editor,
+ const bool reinitVolume)
+ {
+ SMESH_MeshAlgos::Triangulate divider(/*optimize=*/false);
+ int nbTrias = divider.GetTriangles( polygon, face.myNodes );
+ face.myNodes.resize( nbTrias * 3 );
+
+ SMESH_MeshEditor::ElemFeatures newVolumeDef;
+ newVolumeDef.Init( volume.Element() );
+ newVolumeDef.SetID( volume.Element()->GetID() );
+
+ newVolumeDef.myPolyhedQuantities.reserve( volume.NbFaces() + nbTrias );
+ newVolumeDef.myNodes.reserve( volume.NbNodes() + nbTrias * 3 );
+
+ SMESHDS_Mesh* meshDS = editor.GetMeshDS();
+ SMDS_MeshElement* newTriangle;
+ for ( int iF = 0, nF = volume.NbFaces(); iF < nF; iF++ )
+ {
+ if ( iF == facetIndex )
+ {
+ newVolumeDef.myPolyhedQuantities.push_back( 3 );
+ newVolumeDef.myNodes.insert( newVolumeDef.myNodes.end(),
+ face.myNodes.begin(),
+ face.myNodes.begin() + 3 );
+ meshDS->RemoveFreeElement( polygon, 0, false );
+ newTriangle = meshDS->AddFace( face.myNodes[0], face.myNodes[1], face.myNodes[2] );
+ meshDS->SetMeshElementOnShape( newTriangle, faceID );
+ }
+ else
+ {
+ const SMDS_MeshNode** nn = volume.GetFaceNodes( iF );
+ const size_t nbFaceNodes = volume.NbFaceNodes ( iF );
+ newVolumeDef.myPolyhedQuantities.push_back( nbFaceNodes );
+ newVolumeDef.myNodes.insert( newVolumeDef.myNodes.end(), nn, nn + nbFaceNodes );
+ }
+ }
+
+ for ( size_t iN = 3; iN < face.myNodes.size(); iN += 3 )
+ {
+ newVolumeDef.myPolyhedQuantities.push_back( 3 );
+ newVolumeDef.myNodes.insert( newVolumeDef.myNodes.end(),
+ face.myNodes.begin() + iN,
+ face.myNodes.begin() + iN + 3 );
+ newTriangle = meshDS->AddFace( face.myNodes[iN], face.myNodes[iN+1], face.myNodes[iN+2] );
+ meshDS->SetMeshElementOnShape( newTriangle, faceID );
+ }
+
+ meshDS->RemoveFreeElement( volume.Element(), 0, false );
+ SMDS_MeshElement* newVolume = editor.AddElement( newVolumeDef.myNodes, newVolumeDef );
+ meshDS->SetMeshElementOnShape( newVolume, solidID );
+
+ if ( reinitVolume )
+ {
+ volume.Set( 0 );
+ volume.Set( newVolume );
+ }
+ return;
+ }
+ //================================================================================
+ /*!
+ * \brief Create mesh faces at free facets
+ */
+ void Hexahedron::addFaces( SMESH_MesherHelper& helper,
+ const vector< const SMDS_MeshElement* > & boundaryVolumes )
+ {
+ if ( !_grid->_toCreateFaces )
+ return;
+
+ SMDS_VolumeTool vTool;
+ vector<int> bndFacets;
+ SMESH_MeshEditor editor( helper.GetMesh() );
+ SMESH_MeshEditor::ElemFeatures face( SMDSAbs_Face );
+ SMESHDS_Mesh* meshDS = helper.GetMeshDS();
+
+ // check if there are internal or shared FACEs
+ bool hasInternal = ( !_grid->_geometry.IsOneSolid() ||
+ _grid->_geometry._soleSolid.HasInternalFaces() );
+
+ for ( size_t iV = 0; iV < boundaryVolumes.size(); ++iV )
+ {
+ if ( !vTool.Set( boundaryVolumes[ iV ]))
+ continue;
+
+ TGeomID solidID = vTool.Element()->GetShapeID();
+ Solid * solid = _grid->GetOneOfSolids( solidID );
+
+ // find boundary facets
+
+ bndFacets.clear();
+ for ( int iF = 0, n = vTool.NbFaces(); iF < n; iF++ )
+ {
+ bool isBoundary = vTool.IsFreeFace( iF );
+ if ( isBoundary )
+ {
+ bndFacets.push_back( iF );
+ }
+ else if ( hasInternal )
+ {
+ // check if all nodes are on internal/shared FACEs
+ isBoundary = true;
+ const SMDS_MeshNode** nn = vTool.GetFaceNodes( iF );
+ const size_t nbFaceNodes = vTool.NbFaceNodes ( iF );
+ for ( size_t iN = 0; iN < nbFaceNodes && isBoundary; ++iN )
+ isBoundary = ( nn[ iN ]->GetShapeID() != solidID );
+ if ( isBoundary )
+ bndFacets.push_back( -( iF+1 )); // !!! minus ==> to check the FACE
+ }
+ }
+ if ( bndFacets.empty() )
+ continue;
+
+ // create faces
+
+ if ( !vTool.IsPoly() )
+ vTool.SetExternalNormal();
+ for ( size_t i = 0; i < bndFacets.size(); ++i ) // loop on boundary facets
+ {
+ const bool isBoundary = ( bndFacets[i] >= 0 );
+ const int iFacet = isBoundary ? bndFacets[i] : -bndFacets[i]-1;
+ const SMDS_MeshNode** nn = vTool.GetFaceNodes( iFacet );
+ const size_t nbFaceNodes = vTool.NbFaceNodes ( iFacet );
+ face.myNodes.assign( nn, nn + nbFaceNodes );
+
+ TGeomID faceID = 0;
+ const SMDS_MeshElement* existFace = 0, *newFace = 0;
+
+ if (( existFace = meshDS->FindElement( face.myNodes, SMDSAbs_Face )))
+ {
+ if ( existFace->isMarked() )
+ continue; // created by this method
+ faceID = existFace->GetShapeID();
+ }
+ else
+ {
+ // look for a supporting FACE
+ for ( size_t iN = 0; iN < nbFaceNodes && !faceID; ++iN ) // look for a node on FACE
+ {
+ if ( nn[ iN ]->GetPosition()->GetDim() == 2 )
+ faceID = nn[ iN ]->GetShapeID();
+ }
+ for ( size_t iN = 0; iN < nbFaceNodes && !faceID; ++iN )
+ {
+ // look for a father FACE of EDGEs and VERTEXes
+ const TopoDS_Shape& s1 = _grid->Shape( nn[ iN ]->GetShapeID() );
+ const TopoDS_Shape& s2 = _grid->Shape( nn[ iN+1 ]->GetShapeID() );
+ if ( s1 != s2 && s1.ShapeType() == TopAbs_EDGE && s2.ShapeType() == TopAbs_EDGE )
+ {
+ TopoDS_Shape f = helper.GetCommonAncestor( s1, s2, *helper.GetMesh(), TopAbs_FACE );
+ if ( !f.IsNull() )
+ faceID = _grid->ShapeID( f );
+ }
+ }
+
+ bool toCheckFace = faceID && (( !isBoundary ) ||
+ ( hasInternal && _grid->_toUseThresholdForInternalFaces ));
+ if ( toCheckFace ) // check if all nodes are on the found FACE
+ {
+ SMESH_subMesh* faceSM = helper.GetMesh()->GetSubMeshContaining( faceID );
+ for ( size_t iN = 0; iN < nbFaceNodes && faceID; ++iN )
+ {
+ TGeomID subID = nn[ iN ]->GetShapeID();
+ if ( subID != faceID && !faceSM->DependsOn( subID ))
+ faceID = 0;
+ }
+ if ( !faceID && !isBoundary )
+ continue;
+ }
+ }
+ // orient a new face according to supporting FACE orientation in shape_to_mesh
+ if ( !solid->IsOutsideOriented( faceID ))
+ {
+ if ( existFace )
+ editor.Reorient( existFace );
+ else
+ std::reverse( face.myNodes.begin(), face.myNodes.end() );
+ }
+
+ if ( ! ( newFace = existFace ))
+ {
+ face.SetPoly( nbFaceNodes > 4 );
+ newFace = editor.AddElement( face.myNodes, face );
+ if ( !newFace )
+ continue;
+ newFace->setIsMarked( true ); // to distinguish from face created in getBoundaryElems()
+ }
+
+ if ( faceID && _grid->IsBoundaryFace( faceID )) // face is not shared
+ {
+ // set newFace to the found FACE provided that it fully lies on the FACE
+ for ( size_t iN = 0; iN < nbFaceNodes && faceID; ++iN )
+ if ( nn[iN]->GetShapeID() == solidID )
+ {
+ if ( existFace )
+ meshDS->UnSetMeshElementOnShape( existFace, _grid->Shape( faceID ));
+ faceID = 0;
+ }
+ }
+
+ // split a polygon that will be used by other 3D algorithm
+ if ( faceID && nbFaceNodes > 4 &&
+ !_grid->IsInternal( faceID ) &&
+ !_grid->IsShared( faceID ) &&
+ !_grid->IsBoundaryFace( faceID ))
+ {
+ splitPolygon( newFace, vTool, iFacet, faceID, solidID,
+ face, editor, i+1 < bndFacets.size() );
+ }
+ else
+ {
+ if ( faceID )
+ meshDS->SetMeshElementOnShape( newFace, faceID );
+ else
+ meshDS->SetMeshElementOnShape( newFace, solidID );
+ }
+ } // loop on bndFacets
+ } // loop on boundaryVolumes
+
+
+ // Orient coherently mesh faces on INTERNAL FACEs
+
+ if ( hasInternal )
+ {
+ TopExp_Explorer faceExp( _grid->_geometry._mainShape, TopAbs_FACE );
+ for ( ; faceExp.More(); faceExp.Next() )
+ {
+ if ( faceExp.Current().Orientation() != TopAbs_INTERNAL )
+ continue;
+
+ SMESHDS_SubMesh* sm = meshDS->MeshElements( faceExp.Current() );
+ if ( !sm ) continue;
+
+ TIDSortedElemSet facesToOrient;
+ for ( SMDS_ElemIteratorPtr fIt = sm->GetElements(); fIt->more(); )
+ facesToOrient.insert( facesToOrient.end(), fIt->next() );
+ if ( facesToOrient.size() < 2 )
+ continue;
+
+ gp_Dir direction(1,0,0);
+ const SMDS_MeshElement* anyFace = *facesToOrient.begin();
+ editor.Reorient2D( facesToOrient, direction, anyFace );
+ }
+ }
+ return;
+ }
+
+ //================================================================================
+ /*!
+ * \brief Create mesh segments.
+ */
+ void Hexahedron::addSegments( SMESH_MesherHelper& helper,
+ const map< TGeomID, vector< TGeomID > >& edge2faceIDsMap )
+ {
+ SMESHDS_Mesh* mesh = helper.GetMeshDS();
+
+ std::vector<const SMDS_MeshNode*> nodes;
+ std::vector<const SMDS_MeshElement *> elems;
+ map< TGeomID, vector< TGeomID > >::const_iterator e2ff = edge2faceIDsMap.begin();
+ for ( ; e2ff != edge2faceIDsMap.end(); ++e2ff )
+ {
+ const TopoDS_Edge& edge = TopoDS::Edge( _grid->Shape( e2ff->first ));
+ const TopoDS_Face& face = TopoDS::Face( _grid->Shape( e2ff->second[0] ));
+ StdMeshers_FaceSide side( face, edge, helper.GetMesh(), /*isFwd=*/true, /*skipMed=*/true );
+ nodes = side.GetOrderedNodes();
+
+ elems.clear();
+ if ( nodes.size() == 2 )
+ // check that there is an element connecting two nodes
+ if ( !mesh->GetElementsByNodes( nodes, elems ))
+ continue;
+
+ for ( size_t i = 1; i < nodes.size(); i++ )
+ {
+ SMDS_MeshElement* segment = mesh->AddEdge( nodes[i-1], nodes[i] );
+ mesh->SetMeshElementOnShape( segment, e2ff->first );
+ }
+ }
+ return;
+ }
+
+ //================================================================================
+ /*!
+ * \brief Return created volumes and volumes that can have free facet because of
+ * skipped small volume. Also create mesh faces on free facets
+ * of adjacent not-cut volumes id the result volume is too small.
+ */
+ void Hexahedron::getBoundaryElems( vector< const SMDS_MeshElement* > & boundaryElems )
+ {
+ if ( _hasTooSmall /*|| _volumeDefs.IsEmpty()*/ )
+ {
+ // create faces around a missing small volume
+ TGeomID faceID = 0;
+ SMESH_MeshEditor editor( _grid->_helper->GetMesh() );
+ SMESH_MeshEditor::ElemFeatures polygon( SMDSAbs_Face );
+ SMESHDS_Mesh* meshDS = _grid->_helper->GetMeshDS();
+ std::vector<const SMDS_MeshElement *> adjVolumes(2);
+ for ( size_t iF = 0; iF < _polygons.size(); ++iF )
+ {
+ const size_t nbLinks = _polygons[ iF ]._links.size();
+ if ( nbLinks != 4 ) continue;
+ polygon.myNodes.resize( nbLinks );
+ polygon.myNodes.back() = 0;
+ for ( size_t iL = 0, iN = nbLinks - 1; iL < nbLinks; ++iL, --iN )
+ if ( ! ( polygon.myNodes[iN] = _polygons[ iF ]._links[ iL ].FirstNode()->Node() ))
+ break;
+ if ( !polygon.myNodes.back() )
+ continue;
+
+ meshDS->GetElementsByNodes( polygon.myNodes, adjVolumes, SMDSAbs_Volume );
+ if ( adjVolumes.size() != 1 )
+ continue;
+ if ( !adjVolumes[0]->isMarked() )
+ {
+ boundaryElems.push_back( adjVolumes[0] );
+ adjVolumes[0]->setIsMarked( true );
+ }
+
+ bool sameShape = true;
+ TGeomID shapeID = polygon.myNodes[0]->GetShapeID();
+ for ( size_t i = 1; i < polygon.myNodes.size() && sameShape; ++i )
+ sameShape = ( shapeID == polygon.myNodes[i]->GetShapeID() );
+
+ if ( !sameShape || !_grid->IsSolid( shapeID ))
+ continue; // some of shapes must be FACE
+
+ if ( !faceID )
+ {
+ faceID = getAnyFace();
+ if ( !faceID )
+ break;
+ if ( _grid->IsInternal( faceID ) ||
+ _grid->IsShared( faceID ) ||
+ _grid->IsBoundaryFace( faceID ))
+ break; // create only if a new face will be used by other 3D algo
+ }
+
+ Solid * solid = _grid->GetOneOfSolids( adjVolumes[0]->GetShapeID() );
+ if ( !solid->IsOutsideOriented( faceID ))
+ std::reverse( polygon.myNodes.begin(), polygon.myNodes.end() );
+
+ //polygon.SetPoly( polygon.myNodes.size() > 4 );
+ const SMDS_MeshElement* newFace = editor.AddElement( polygon.myNodes, polygon );
+ meshDS->SetMeshElementOnShape( newFace, faceID );
+ }
+ }
+
+ // return created volumes
+ for ( _volumeDef* volDef = &_volumeDefs; volDef; volDef = volDef->_next )
+ {
+ if ( volDef->_volume && !volDef->_volume->isMarked() )
+ {
+ volDef->_volume->setIsMarked( true );
+ boundaryElems.push_back( volDef->_volume );
+
+ if ( _grid->IsToCheckNodePos() ) // un-mark nodes marked in addVolumes()
+ for ( size_t iN = 0; iN < volDef->_nodes.size(); ++iN )
+ volDef->_nodes[iN].Node()->setIsMarked( false );
+ }
+ }
+ }
+
+ //================================================================================
+ /*!
+ * \brief Set to _hexLinks a next portion of splits located on one side of INTERNAL FACEs
+ */
+ bool Hexahedron::_SplitIterator::Next()
+ {
+ if ( _iterationNb > 0 )
+ // count used splits
+ for ( size_t i = 0; i < _splits.size(); ++i )
+ {
+ if ( _splits[i]._iCheckIteration == _iterationNb )
+ {
+ _splits[i]._isUsed = _splits[i]._checkedSplit->_faces[1];
+ _nbUsed += _splits[i]._isUsed;
+ }
+ if ( !More() )
+ return false;
+ }
+
+ ++_iterationNb;
+
+ bool toTestUsed = ( _nbChecked >= _splits.size() );
+ if ( toTestUsed )
+ {
+ // all splits are checked; find all not used splits
+ for ( size_t i = 0; i < _splits.size(); ++i )
+ if ( !_splits[i].IsCheckedOrUsed( toTestUsed ))
+ _splits[i]._iCheckIteration = _iterationNb;
+
+ _nbUsed = _splits.size(); // to stop iteration
+ }
+ else
+ {
+ // get any not used/checked split to start from
+ _freeNodes.clear();
+ for ( size_t i = 0; i < _splits.size(); ++i )
+ {
+ if ( !_splits[i].IsCheckedOrUsed( toTestUsed ))
+ {
+ _freeNodes.push_back( _splits[i]._nodes[0] );
+ _freeNodes.push_back( _splits[i]._nodes[1] );
+ _splits[i]._iCheckIteration = _iterationNb;
+ break;
+ }
+ }
+ // find splits connected to the start one via _freeNodes
+ for ( size_t iN = 0; iN < _freeNodes.size(); ++iN )
+ {
+ for ( size_t iS = 0; iS < _splits.size(); ++iS )
+ {
+ if ( _splits[iS].IsCheckedOrUsed( toTestUsed ))
+ continue;
+ int iN2 = -1;
+ if ( _freeNodes[iN] == _splits[iS]._nodes[0] )
+ iN2 = 1;
+ else if ( _freeNodes[iN] == _splits[iS]._nodes[1] )
+ iN2 = 0;
+ else
+ continue;
+ if ( _freeNodes[iN]->_isInternalFlags > 0 )
+ {
+ if ( _splits[iS]._nodes[ iN2 ]->_isInternalFlags == 0 )
+ continue;
+ if ( !_splits[iS]._nodes[ iN2 ]->IsLinked( _freeNodes[iN]->_intPoint ))
+ continue;
+ }
+ _splits[iS]._iCheckIteration = _iterationNb;
+ _freeNodes.push_back( _splits[iS]._nodes[ iN2 ]);
+ }
+ }
+ }
+ // set splits to hex links
+
+ for ( int iL = 0; iL < 12; ++iL )
+ _hexLinks[ iL ]._splits.clear();
+
+ _Link split;
+ for ( size_t i = 0; i < _splits.size(); ++i )
+ {
+ if ( _splits[i]._iCheckIteration == _iterationNb )
+ {
+ split._nodes[0] = _splits[i]._nodes[0];
+ split._nodes[1] = _splits[i]._nodes[1];
+ _Link & hexLink = _hexLinks[ _splits[i]._linkID ];
+ hexLink._splits.push_back( split );
+ _splits[i]._checkedSplit = & hexLink._splits.back();
+ ++_nbChecked;
+ }
+ }
+ return More();
+ }
//================================================================================
/*!
_computeCanceled = false;
SMESH_MesherHelper helper( theMesh );
+ SMESHDS_Mesh* meshDS = theMesh.GetMeshDS();
try
{
Grid grid;
- grid._helper = &helper;
+ grid._helper = &helper;
+ grid._toAddEdges = _hyp->GetToAddEdges();
+ grid._toCreateFaces = _hyp->GetToCreateFaces();
+ grid._toConsiderInternalFaces = _hyp->GetToConsiderInternalFaces();
+ grid._toUseThresholdForInternalFaces = _hyp->GetToUseThresholdForInternalFaces();
+ grid._sizeThreshold = _hyp->GetSizeThreshold();
+ grid.InitGeometry( theShape );
vector< TopoDS_Shape > faceVec;
{
TopTools_MapOfShape faceMap;
TopExp_Explorer fExp;
for ( fExp.Init( theShape, TopAbs_FACE ); fExp.More(); fExp.Next() )
- if ( !faceMap.Add( fExp.Current() ))
- faceMap.Remove( fExp.Current() ); // remove a face shared by two solids
-
- for ( fExp.ReInit(); fExp.More(); fExp.Next() )
- if ( faceMap.Contains( fExp.Current() ))
- faceVec.push_back( fExp.Current() );
+ {
+ bool isNewFace = faceMap.Add( fExp.Current() );
+ if ( !grid._toConsiderInternalFaces )
+ if ( !isNewFace || fExp.Current().Orientation() == TopAbs_INTERNAL )
+ // remove an internal face
+ faceMap.Remove( fExp.Current() );
+ }
+ faceVec.reserve( faceMap.Extent() );
+ faceVec.assign( faceMap.cbegin(), faceMap.cend() );
}
vector<FaceGridIntersector> facesItersectors( faceVec.size() );
- map< TGeomID, vector< TGeomID > > edge2faceIDsMap;
- TopExp_Explorer eExp;
Bnd_Box shapeBox;
for ( size_t i = 0; i < faceVec.size(); ++i )
{
- facesItersectors[i]._face = TopoDS::Face ( faceVec[i] );
- facesItersectors[i]._faceID = grid._shapes.Add( faceVec[i] );
+ facesItersectors[i]._face = TopoDS::Face( faceVec[i] );
+ facesItersectors[i]._faceID = grid.ShapeID( faceVec[i] );
facesItersectors[i]._grid = &grid;
shapeBox.Add( facesItersectors[i].GetFaceBndBox() );
-
- if ( _hyp->GetToAddEdges() )
- {
- helper.SetSubShape( faceVec[i] );
- for ( eExp.Init( faceVec[i], TopAbs_EDGE ); eExp.More(); eExp.Next() )
- {
- const TopoDS_Edge& edge = TopoDS::Edge( eExp.Current() );
- if ( !SMESH_Algo::isDegenerated( edge ) &&
- !helper.IsRealSeam( edge ))
- edge2faceIDsMap[ grid._shapes.Add( edge )].push_back( facesItersectors[i]._faceID );
- }
- }
}
-
getExactBndBox( faceVec, _hyp->GetAxisDirs(), shapeBox );
+
vector<double> xCoords, yCoords, zCoords;
_hyp->GetCoordinates( xCoords, yCoords, zCoords, shapeBox );
BRepBuilderAPI_Copy copier;
for ( size_t i = 0; i < facesItersectors.size(); ++i )
{
- if ( !facesItersectors[i].IsThreadSafe(tshapes) )
+ if ( !facesItersectors[i].IsThreadSafe( tshapes ))
{
copier.Perform( facesItersectors[i]._face );
facesItersectors[i]._face = TopoDS::Face( copier );
facesItersectors[i].Intersect();
#endif
- // put interesection points onto the GridLine's; this is done after intersection
+ // put intersection points onto the GridLine's; this is done after intersection
// to avoid contention of facesItersectors for writing into the same GridLine
// in case of parallel work of facesItersectors
for ( size_t i = 0; i < facesItersectors.size(); ++i )
facesItersectors[i].StoreIntersections();
- TopExp_Explorer solidExp (theShape, TopAbs_SOLID);
- helper.SetSubShape( solidExp.Current() );
- helper.SetElementsOnShape( true );
-
if ( _computeCanceled ) return false;
// create nodes on the geometry
- grid.ComputeNodes(helper);
+ grid.ComputeNodes( helper );
if ( _computeCanceled ) return false;
+ // get EDGEs to take into account
+ map< TGeomID, vector< TGeomID > > edge2faceIDsMap;
+ grid.GetEdgesToImplement( edge2faceIDsMap, theShape, faceVec );
+
// create volume elements
- Hexahedron hex( _hyp->GetSizeThreshold(), &grid );
+ Hexahedron hex( &grid );
int nbAdded = hex.MakeElements( helper, edge2faceIDsMap );
- SMESHDS_Mesh* meshDS = theMesh.GetMeshDS();
if ( nbAdded > 0 )
{
- // make all SOLIDs computed
- if ( SMESHDS_SubMesh* sm1 = meshDS->MeshElements( solidExp.Current()) )
+ if ( !grid._toConsiderInternalFaces )
{
- SMDS_ElemIteratorPtr volIt = sm1->GetElements();
- for ( ; solidExp.More() && volIt->more(); solidExp.Next() )
+ // make all SOLIDs computed
+ TopExp_Explorer solidExp( theShape, TopAbs_SOLID );
+ if ( SMESHDS_SubMesh* sm1 = meshDS->MeshElements( solidExp.Current()) )
{
- const SMDS_MeshElement* vol = volIt->next();
- sm1->RemoveElement( vol, /*isElemDeleted=*/false );
- meshDS->SetMeshElementOnShape( vol, solidExp.Current() );
+ SMDS_ElemIteratorPtr volIt = sm1->GetElements();
+ for ( ; solidExp.More() && volIt->more(); solidExp.Next() )
+ {
+ const SMDS_MeshElement* vol = volIt->next();
+ sm1->RemoveElement( vol );
+ meshDS->SetMeshElementOnShape( vol, solidExp.Current() );
+ }
}
}
// make other sub-shapes computed
}
// remove free nodes
- if ( SMESHDS_SubMesh * smDS = meshDS->MeshElements( helper.GetSubShapeID() ))
+ //if ( SMESHDS_SubMesh * smDS = meshDS->MeshElements( helper.GetSubShapeID() ))
{
- TIDSortedNodeSet nodesToRemove;
+ std::vector< const SMDS_MeshNode* > nodesToRemove;
// get intersection nodes
for ( int iDir = 0; iDir < 3; ++iDir )
{
{
multiset< F_IntersectPoint >::iterator ip = lines[i]._intPoints.begin();
for ( ; ip != lines[i]._intPoints.end(); ++ip )
- if ( ip->_node && ip->_node->NbInverseElements() == 0 )
- nodesToRemove.insert( nodesToRemove.end(), ip->_node );
+ if ( ip->_node && ip->_node->NbInverseElements() == 0 && !ip->_node->isMarked() )
+ {
+ nodesToRemove.push_back( ip->_node );
+ ip->_node->setIsMarked( true );
+ }
}
}
// get grid nodes
for ( size_t i = 0; i < grid._nodes.size(); ++i )
- if ( grid._nodes[i] && grid._nodes[i]->NbInverseElements() == 0 )
- nodesToRemove.insert( nodesToRemove.end(), grid._nodes[i] );
+ if ( grid._nodes[i] && grid._nodes[i]->NbInverseElements() == 0 &&
+ !grid._nodes[i]->isMarked() )
+ {
+ nodesToRemove.push_back( grid._nodes[i] );
+ grid._nodes[i]->setIsMarked( true );
+ }
// do remove
- TIDSortedNodeSet::iterator n = nodesToRemove.begin();
- for ( ; n != nodesToRemove.end(); ++n )
- meshDS->RemoveFreeNode( *n, smDS, /*fromGroups=*/false );
+ for ( size_t i = 0; i < nodesToRemove.size(); ++i )
+ meshDS->RemoveFreeNode( nodesToRemove[i], /*smD=*/0, /*fromGroups=*/false );
}
return nbAdded;
for ( TopExp_Explorer soExp( theShape, TopAbs_SOLID ); soExp.More(); soExp.Next() )
_EventListener::setAlwaysComputed( true, theMesh.GetSubMesh( soExp.Current() ));
}
-
