X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=src%2FSMDS%2FSMDS_MeshElement.hxx;h=71eb869a1e5aed143d9f4db1e97beca421e066db;hp=3d9d13afe40d2298918c7ccfb68d4d642f219a2b;hb=9d11375af40826e967ab2c3bcb77d1f9d439c90c;hpb=090aff07266d376ae028ae43434bdea7c0a0f9bb

diff --git a/src/SMDS/SMDS_MeshElement.hxx b/src/SMDS/SMDS_MeshElement.hxx
index 3d9d13afe..71eb869a1 100644
--- a/src/SMDS/SMDS_MeshElement.hxx
+++ b/src/SMDS/SMDS_MeshElement.hxx
@@ -17,7 +17,7 @@
 //  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 
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
 //
 //
 //
@@ -26,6 +26,8 @@
 
 #ifndef _SMDS_MeshElement_HeaderFile
 #define _SMDS_MeshElement_HeaderFile
+
+#include "SMESH_SMDS.hxx"
 	
 #include "SMDSAbs_ElementType.hxx"
 #include "SMDS_MeshObject.hxx"
@@ -42,32 +44,73 @@ class SMDS_MeshFace;
 ///////////////////////////////////////////////////////////////////////////////
 /// Base class for elements
 ///////////////////////////////////////////////////////////////////////////////
-class SMDS_MeshElement:public SMDS_MeshObject
+class SMDS_EXPORT SMDS_MeshElement:public SMDS_MeshObject
 {
+public:
 
-  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 std::ostream & operator <<(std::ostream & OS, const SMDS_MeshElement *);
-	friend bool SMDS_MeshElementIDFactory::BindID(int ID,SMDS_MeshElement*elem);
-
-  protected:
-	SMDS_MeshElement(int ID=-1);
-	virtual void Print(std::ostream & OS) const;
-	
-  private:
-	int myID;
+  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;
+  virtual bool IsPoly() const { return false; };
+  virtual bool IsQuadratic() const;
+
+  virtual bool IsMediumNode(const SMDS_MeshNode* node) const;
+
+  friend SMDS_EXPORT std::ostream & operator <<(std::ostream & OS, const SMDS_MeshElement *);
+  friend SMDS_EXPORT bool SMDS_MeshElementIDFactory::BindID(int ID,SMDS_MeshElement*elem);
+
+  // ===========================
+  //  Access to nodes by index
+  // ===========================
+  /*!
+   * \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
+   */
+  virtual const SMDS_MeshNode* GetNode(const int ind) const;
+
+  /*!
+   * \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 node index, fixing the given one if necessary
+    * \param ind - node index
+    * \retval int - valid node index
+   */
+  int WrappedIndex(const int ind) const {
+    if ( ind < 0 ) return NbNodes() + ind % NbNodes();
+    if ( ind >= NbNodes() ) return ind % NbNodes();
+    return ind;
+  }
+
+  /*!
+   * \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
+   */
+  int GetNodeIndex( const SMDS_MeshNode* node ) const;
+
+protected:
+  SMDS_MeshElement(int ID=-1);
+  virtual void Print(std::ostream & OS) const;
+
+private:
+  int myID;
 };
 
 #endif