-// SMESH SMDS : implementaion of Salome mesh data structure
+// Copyright (C) 2007-2022 CEA/DEN, EDF R&D, OPEN CASCADE
//
-// Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
-// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Lesser General Public
-// License as published by the Free Software Foundation; either
-// version 2.1 of the License.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-//
-// See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
+// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+// SMESH SMDS : implementation of Salome mesh data structure
// File : SMDS_MeshElement.hxx
// Module : SMESH
-
+//
#ifndef _SMDS_MeshElement_HeaderFile
#define _SMDS_MeshElement_HeaderFile
-
+
+#include "SMESH_SMDS.hxx"
+
#include "SMDSAbs_ElementType.hxx"
#include "SMDS_MeshObject.hxx"
-#include "SMDS_Iterator.hxx"
-#include "SMDS_MeshElementIDFactory.hxx"
+#include "SMDS_ElemIterator.hxx"
+#include "SMDS_StdIterator.hxx"
-#include <boost/shared_ptr.hpp>
-#include <vector>
#include <iostream>
-using namespace std;
+#include <vtkType.h>
+#include <vtkCellType.h>
+#include <smIdType.hxx>
+
+class SMDS_ElementChunk;
+class SMDS_Mesh;
class SMDS_MeshNode;
-class SMDS_MeshEdge;
-class SMDS_MeshFace;
-class SMDS_MeshElement;
+class SMDS_UnstructuredGrid;
+
+// ============================================================
+/*!
+ * \brief Base class for elements
+ */
+// ============================================================
-typedef SMDS_Iterator<const SMDS_MeshElement *> SMDS_ElemIterator;
-typedef boost::shared_ptr<SMDS_Iterator<const SMDS_MeshElement *> > SMDS_ElemIteratorPtr;
-///////////////////////////////////////////////////////////////////////////////
-/// Base class for elements
-///////////////////////////////////////////////////////////////////////////////
-class SMDS_MeshElement:public SMDS_MeshObject
+class SMDS_EXPORT SMDS_MeshElement : public SMDS_MeshObject
{
+public:
+
+ // ===========================
+ // Access to nodes
+ // ===========================
+ virtual SMDS_ElemIteratorPtr nodesIterator() const = 0;
+
+ virtual SMDS_NodeIteratorPtr nodeIterator() const = 0;
+ virtual SMDS_NodeIteratorPtr interlacedNodesIterator() const { return nodeIterator(); }
+ virtual SMDS_NodeIteratorPtr nodesIteratorToUNV() const { return nodeIterator(); }
+
+ // std-like iteration on nodes
+ typedef SMDS_StdIterator< const SMDS_MeshNode*, SMDS_NodeIteratorPtr > iterator;
+ iterator begin_nodes() const { return iterator( nodeIterator() ); }
+ iterator end_nodes() const { return iterator(); }
+
+ // ===========================
+ // Type of element
+ // ===========================
+ virtual int NbNodes() const = 0;
+ virtual int NbEdges() const = 0;
+ virtual int NbFaces() const = 0;
+
+ virtual SMDSAbs_ElementType GetType() const = 0;
+ virtual SMDSAbs_EntityType GetEntityType() const = 0;
+ virtual SMDSAbs_GeometryType GetGeomType() const = 0;
+ virtual VTKCellType GetVtkType() const = 0;
+
+ virtual bool IsPoly() const = 0;
+ virtual bool IsQuadratic() const = 0;
+ virtual bool IsMediumNode(const SMDS_MeshNode* node) const;
+ virtual int NbCornerNodes() const = 0;
+
+ // ===========================
+ // Access to nodes by index
+ // ===========================
+ /*!
+ * \brief Return node by its index
+ * \param ind - node index
+ * \retval const SMDS_MeshNode* - the node
+ */
+ virtual const SMDS_MeshNode* GetNode(const int ind) const = 0;
+
+ /*!
+ * \brief Return node by its index
+ * \param ind - node index
+ * \retval const SMDS_MeshNode* - the node
+ *
+ * Index is wrapped if it is out of a valid range of corner nodes
+ */
+ const SMDS_MeshNode* GetNodeWrap(const int ind) const { return GetNode( WrappedIndex( ind )); }
+
+ /*!
+ * \brief Return true if index of node is valid (0 <= ind < NbNodes())
+ * \param ind - node index
+ * \retval bool - index check result
+ */
+ virtual bool IsValidIndex(const int ind) const;
+
+ /*!
+ * \brief Return a valid corner node index, fixing the given one if necessary
+ * \param ind - node index
+ * \retval int - valid node index
+ */
+ int WrappedIndex(const int ind) const;
+
+ /*!
+ * \brief Check if a node belongs to the element
+ * \param node - the node to check
+ * \retval int - node index within the element, -1 if not found
+ */
+ virtual int GetNodeIndex( const SMDS_MeshNode* node ) const;
+
+
+ virtual smIdType GetID() const;
+ virtual vtkIdType GetVtkID() const;
+ virtual int getshapeId() const { return GetShapeID(); }
+ virtual int GetShapeID() const;
+
+ // mark this element; to be used in algos
+ virtual void setIsMarked( bool is ) const;
+ virtual bool isMarked() const;
+
+ // element can be allocated but "not used"
+ bool IsNull() const { return myHolder == 0; }
+
+ SMDS_Mesh* GetMesh() const;
+
+ void Print(std::ostream & OS) const;
+
+ friend SMDS_EXPORT std::ostream & operator <<(std::ostream & OS, const SMDS_MeshElement *);
+ friend class SMDS_ElementFactory;
+ friend class SMESHDS_SubMesh;
+
+ /*!
+ * \brief Filters of elements, to be used with SMDS_SetIterator
+ */
+ struct Filter
+ {
+ virtual bool operator()(const SMDS_MeshElement* e) const = 0;
+ virtual ~Filter() {}
+ };
+ struct NonNullFilter: public Filter
+ {
+ bool operator()(const SMDS_MeshElement* e) const { return e; }
+ };
+ struct TypeFilter : public Filter
+ {
+ SMDSAbs_ElementType _type;
+ TypeFilter( SMDSAbs_ElementType t = SMDSAbs_NbElementTypes ):_type(t) {}
+ bool operator()(const SMDS_MeshElement* e) const { return e && e->GetType() == _type; }
+ };
+ struct EntityFilter : public Filter
+ {
+ SMDSAbs_EntityType _type;
+ EntityFilter( SMDSAbs_EntityType t = SMDSEntity_Last ):_type(t) {}
+ bool operator()(const SMDS_MeshElement* e) const { return e && e->GetEntityType() == _type; }
+ };
+ struct GeomFilter : public Filter
+ {
+ SMDSAbs_GeometryType _type;
+ GeomFilter( SMDSAbs_GeometryType t = SMDSGeom_NONE ):_type(t) {}
+ bool operator()(const SMDS_MeshElement* e) const { return e && e->GetGeomType() == _type; }
+ };
+
+ protected:
+
+ SMDS_MeshElement();
+
+ void setVtkID(const vtkIdType vtkID );
+ virtual void setShapeID( const int shapeID ) const;
+
+ SMDS_UnstructuredGrid* getGrid() const;
+
+ protected:
+
+ SMDS_ElementChunk* myHolder;
+};
+
+// ============================================================
+/*!
+ * \brief Comparator of elements by ID for usage in std containers
+ */
+// ============================================================
+
+struct TIDTypeCompare {
+ bool operator () (const SMDS_MeshElement* e1, const SMDS_MeshElement* e2) const
+ { return e1->GetType() == e2->GetType() ? e1->GetID() < e2->GetID() : e1->GetType() < e2->GetType(); }
+};
- public:
- SMDS_ElemIteratorPtr nodesIterator() const;
- SMDS_ElemIteratorPtr edgesIterator() const;
- SMDS_ElemIteratorPtr facesIterator() const;
- virtual SMDS_ElemIteratorPtr
- elementsIterator(SMDSAbs_ElementType type) const;
-
- virtual int NbNodes() const;
- virtual int NbEdges() const;
- virtual int NbFaces() const;
- int GetID() const;
-
- ///Return the type of the current element
- virtual SMDSAbs_ElementType GetType() const = 0;
- friend ostream & operator <<(ostream & OS, const SMDS_MeshElement *);
- friend bool SMDS_MeshElementIDFactory::BindID(int ID,SMDS_MeshElement*elem);
-
- protected:
- SMDS_MeshElement(int ID=-1);
- virtual void Print(ostream & OS) const;
-
- private:
- int myID;
+// WARNING: this comparator makes impossible to store both nodes and elements in the same set
+// because there are nodes and elements with the same ID. Use TIDTypeCompare for such containers.
+struct TIDCompare {
+ bool operator () (const SMDS_MeshElement* e1, const SMDS_MeshElement* e2) const
+ { return e1->GetID() < e2->GetID(); }
};
#endif
