X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=src%2FSMDS%2FSMDS_MeshElement.hxx;h=67ac8f2473f36f7dd7fa00afcd795353a9102b4b;hp=73870b707fbf37d96184688cd7ac4c763a98ca0a;hb=4ff5bd61540272713e48de1eee75625028c32155;hpb=42c7eb97f9ec27537b638c98ef69dc55f19fa1cd

diff --git a/src/SMDS/SMDS_MeshElement.hxx b/src/SMDS/SMDS_MeshElement.hxx
index 73870b707..67ac8f247 100644
--- a/src/SMDS/SMDS_MeshElement.hxx
+++ b/src/SMDS/SMDS_MeshElement.hxx
@@ -56,32 +56,64 @@ class SMDS_MeshFace;
 ///////////////////////////////////////////////////////////////////////////////
 class SMDS_WNT_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;
+  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;
+  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; };
+  ///Return the type of the current element
+  virtual SMDSAbs_ElementType GetType() const = 0;
+  virtual bool IsPoly() const { return false; };
+  virtual bool IsQuadratic() const;
 
-	friend std::ostream & operator <<(std::ostream & OS, const SMDS_MeshElement *);
-	friend bool SMDS_MeshElementIDFactory::BindID(int ID,SMDS_MeshElement*elem);
+  virtual bool IsMediumNode(const SMDS_MeshNode* node) const;
 
-  protected:
-	SMDS_MeshElement(int ID=-1);
-	virtual void Print(std::ostream & OS) const;
-	
-  private:
-	int myID;
+  friend std::ostream & operator <<(std::ostream & OS, const SMDS_MeshElement *);
+  friend 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 -( ind % NbNodes());
+    if ( ind >= NbNodes() ) return ind % NbNodes();
+    return ind;
+  }
+
+protected:
+  SMDS_MeshElement(int ID=-1);
+  virtual void Print(std::ostream & OS) const;
+
+private:
+  int myID;
 };
 
 #endif