VTK
dox/Filtering/vtkAdjacentVertexIterator.h
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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    vtkAdjacentVertexIterator.h
00005 
00006   Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
00007   All rights reserved.
00008   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00009 
00010      This software is distributed WITHOUT ANY WARRANTY; without even
00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00012      PURPOSE.  See the above copyright notice for more information.
00013 
00014 =========================================================================*/
00015 /*-------------------------------------------------------------------------
00016   Copyright 2008 Sandia Corporation.
00017   Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
00018   the U.S. Government retains certain rights in this software.
00019 -------------------------------------------------------------------------*/
00036 #ifndef __vtkAdjacentVertexIterator_h
00037 #define __vtkAdjacentVertexIterator_h
00038 
00039 #include "vtkObject.h"
00040 
00041 #include "vtkGraph.h" // For edge type definitions
00042 
00043 class vtkGraphEdge;
00044 
00045 class VTK_FILTERING_EXPORT vtkAdjacentVertexIterator : public vtkObject
00046 {
00047 public:
00048   static vtkAdjacentVertexIterator *New();
00049   vtkTypeMacro(vtkAdjacentVertexIterator, vtkObject);
00050   void PrintSelf(ostream& os, vtkIndent indent);
00051 
00053   void Initialize(vtkGraph *g, vtkIdType v);
00054 
00056 
00057   vtkGetObjectMacro(Graph, vtkGraph);
00058   vtkGetMacro(Vertex, vtkIdType);
00060   
00062 
00063   vtkIdType Next()
00064   {
00065     vtkOutEdgeType e = *this->Current;
00066     ++this->Current;
00067     return e.Target;
00068   }
00070 
00072 
00073   bool HasNext()
00074   {
00075     return this->Current != this->End;
00076   }
00078 
00079 protected:
00080   vtkAdjacentVertexIterator();
00081   ~vtkAdjacentVertexIterator();
00082 
00084   virtual void SetGraph(vtkGraph *graph);  
00085 
00086   vtkGraph            *Graph;
00087   const vtkOutEdgeType *Current;
00088   const vtkOutEdgeType *End;
00089   vtkIdType             Vertex;
00090 
00091 private:
00092   vtkAdjacentVertexIterator(const vtkAdjacentVertexIterator&);  // Not implemented.
00093   void operator=(const vtkAdjacentVertexIterator&);  // Not implemented.
00094 };
00095 
00096 #endif