X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FSMESHUtils%2FSMESH_MeshAlgos.hxx;h=3b1097a66002f67e43fb836fa4caf53d63f04e42;hb=8d297d6698f361d4f2dde723050bcfbaea050920;hp=10af7a63673cc72e514780e47cc0e6ea72aab41a;hpb=54d669640def1c7dd6461432564f2c78439fe9ca;p=modules%2Fsmesh.git diff --git a/src/SMESHUtils/SMESH_MeshAlgos.hxx b/src/SMESHUtils/SMESH_MeshAlgos.hxx index 10af7a636..3b1097a66 100644 --- a/src/SMESHUtils/SMESH_MeshAlgos.hxx +++ b/src/SMESHUtils/SMESH_MeshAlgos.hxx @@ -24,7 +24,7 @@ // Author : Edward AGAPOV (eap) // This file holds some low level algorithms extracted from SMESH_MeshEditor -// to make them accessible from Controls package +// to make them accessible from Controls package, and more #ifndef __SMESH_MeshAlgos_HXX__ @@ -41,6 +41,7 @@ class gp_Pnt; class gp_Ax1; +class Bnd_B3d; class SMDS_MeshNode; class SMDS_MeshElement; class SMDS_Mesh; @@ -96,6 +97,12 @@ struct SMESHUtils_EXPORT SMESH_ElementSearcher const double radius, SMDSAbs_ElementType type, std::vector< const SMDS_MeshElement* >& foundElems) = 0; + /*! + * \brief Return elements whose bounding box intersects a given bounding box + */ + virtual void GetElementsInBox( const Bnd_B3d& box, + SMDSAbs_ElementType type, + std::vector< const SMDS_MeshElement* >& foundElems) = 0; /*! * \brief Find out if the given point is out of closed 2D mesh. */ @@ -114,6 +121,27 @@ struct SMESHUtils_EXPORT SMESH_ElementSearcher namespace SMESH_MeshAlgos { + /*! + * \brief Return SMESH_NodeSearcher. The caller is responsible for deleting it + */ + SMESHUtils_EXPORT + SMESH_NodeSearcher* GetNodeSearcher( SMDS_Mesh& mesh ); + + SMESHUtils_EXPORT + SMESH_NodeSearcher* GetNodeSearcher( SMDS_ElemIteratorPtr elemIt ); + + /*! + * \brief Return SMESH_ElementSearcher. The caller is responsible for deleting it + */ + SMESHUtils_EXPORT + SMESH_ElementSearcher* GetElementSearcher( SMDS_Mesh& mesh, + double tolerance=-1.); + SMESHUtils_EXPORT + SMESH_ElementSearcher* GetElementSearcher( SMDS_Mesh& mesh, + SMDS_ElemIteratorPtr elemIt, + double tolerance=-1. ); + + /*! * \brief Return true if the point is IN or ON of the element */ @@ -172,24 +200,52 @@ namespace SMESH_MeshAlgos const SMDS_MeshNode* node1 ); /*! - * \brief Return SMESH_NodeSearcher. The caller is responsible for deleteing it + * \brief Mark elements given by SMDS_Iterator */ - SMESHUtils_EXPORT - SMESH_NodeSearcher* GetNodeSearcher( SMDS_Mesh& mesh ); - - SMESHUtils_EXPORT - SMESH_NodeSearcher* GetNodeSearcher( SMDS_ElemIteratorPtr elemIt ); - + template< class ElemIter > + void MarkElems( ElemIter it, const bool isMarked ) + { + while ( it->more() ) it->next()->setIsMarked( isMarked ); + } /*! - * \brief Return SMESH_ElementSearcher. The caller is responsible for deleting it + * \brief Mark elements given by std iterators */ - SMESHUtils_EXPORT - SMESH_ElementSearcher* GetElementSearcher( SMDS_Mesh& mesh, - double tolerance=-1.); - SMESHUtils_EXPORT - SMESH_ElementSearcher* GetElementSearcher( SMDS_Mesh& mesh, - SMDS_ElemIteratorPtr elemIt, - double tolerance=-1. ); + template< class ElemIter > + void MarkElems( ElemIter it, ElemIter end, const bool isMarked ) + { + for ( ; it != end; ++it ) (*it)->setIsMarked( isMarked ); + } + /*! + * \brief Mark nodes of elements given by SMDS_Iterator + */ + template< class ElemIter > + void MarkElemNodes( ElemIter it, const bool isMarked, const bool markElem = false ) + { + if ( markElem ) + while ( it->more() ) { + const SMDS_MeshElement* e = it->next(); + e->setIsMarked( isMarked ); + MarkElems( e->nodesIterator(), isMarked ); + } + else + while ( it->more() ) + MarkElems( it->next()->nodesIterator(), isMarked ); + } + /*! + * \brief Mark elements given by std iterators + */ + template< class ElemIter > + void MarkElemNodes( ElemIter it, ElemIter end, const bool isMarked, const bool markElem = false ) + { + if ( markElem ) + for ( ; it != end; ++it ) { + (*it)->setIsMarked( isMarked ); + MarkElems( (*it)->nodesIterator(), isMarked ); + } + else + for ( ; it != end; ++it ) + MarkElems( (*it)->nodesIterator(), isMarked ); + } @@ -214,18 +270,16 @@ namespace SMESH_MeshAlgos * Returns TFreeBorder's coincident within the given tolerance. * If the tolerance <= 0.0 then one tenth of an average size of elements adjacent * to free borders being compared is used. - * - * (Implemented in ./SMESH_FreeBorders.cxx) */ SMESHUtils_EXPORT void FindCoincidentFreeBorders(SMDS_Mesh& mesh, double tolerance, CoincidentFreeBorders & foundFreeBordes); + // Implemented in ./SMESH_FreeBorders.cxx + /*! * Returns all or only closed TFreeBorder's. * Optionally check if the mesh is manifold and if faces are correctly oriented. - * - * (Implemented in ./SMESH_FreeBorders.cxx) */ SMESHUtils_EXPORT void FindFreeBorders(SMDS_Mesh& mesh, @@ -233,26 +287,84 @@ namespace SMESH_MeshAlgos const bool closedOnly, bool* isManifold = 0, bool* isGoodOri = 0); + // Implemented in ./SMESH_FreeBorders.cxx + /*! * Fill a hole defined by a TFreeBorder with 2D elements. - * - * (Implemented in ./SMESH_FillHole.cxx) */ SMESHUtils_EXPORT void FillHole(const TFreeBorder & freeBorder, SMDS_Mesh& mesh, std::vector& newFaces); + // Implemented in ./SMESH_FillHole.cxx /*! * \brief Find nodes whose merge makes the element invalid - * - * (Implemented in SMESH_DeMerge.cxx) */ SMESHUtils_EXPORT void DeMerge(const SMDS_MeshElement* elem, std::vector< const SMDS_MeshNode* >& newNodes, std::vector< const SMDS_MeshNode* >& noMergeNodes); + // Implemented in SMESH_DeMerge.cxx + + + typedef std::vector< std::pair< const SMDS_MeshElement*, const SMDS_MeshElement* > > TEPairVec; + typedef std::vector< std::pair< const SMDS_MeshNode*, const SMDS_MeshNode* > > TNPairVec; + /*! + * \brief Create an offset mesh of given faces + * \param [in] faceIt - the input faces + * \param [in] theFixIntersections - to fix self intersections of the offset mesh or not + * \param [out] new2OldFaces - history of faces + * \param [out] new2OldNodes - history of nodes + * \return SMDS_Mesh* - the new offset mesh, a caller should delete + */ + SMESHUtils_EXPORT + SMDS_Mesh* MakeOffset( SMDS_ElemIteratorPtr faceIt, + SMDS_Mesh& mesh, + const double offset, + const bool theFixIntersections, + TEPairVec& new2OldFaces, + TNPairVec& new2OldNodes ); + // Implemented in ./SMESH_Offset.cxx + + + /*! + * \brief Divide a mesh face into triangles + */ + // Implemented in ./SMESH_Triangulate.cxx + + class SMESHUtils_EXPORT Triangulate + { + public: + + static int GetNbTriangles( const SMDS_MeshElement* face ); + + int GetTriangles( const SMDS_MeshElement* face, + std::vector< const SMDS_MeshNode*>& nodes); + private: + + bool triangulate( std::vector< const SMDS_MeshNode*>& nodes, const size_t nbNodes ); + + /*! + * \brief Vertex of a polygon. Together with 2 neighbor Vertices represents a triangle + */ + struct PolyVertex + { + SMESH_NodeXYZ _nxyz; + gp_XY _xy; + PolyVertex* _prev; + PolyVertex* _next; + + void SetNodeAndNext( const SMDS_MeshNode* n, PolyVertex& v ); + void GetTriaNodes( const SMDS_MeshNode** nodes) const; + double TriaArea() const; + bool IsInsideTria( const PolyVertex* v ); + PolyVertex* Delete(); + }; + std::vector< PolyVertex > _pv; + }; + } // namespace SMESH_MeshAlgos