Permalink
Switch branches/tags
Nothing to show
Find file Copy path
Fetching contributors…
Cannot retrieve contributors at this time
94 lines (75 sloc) 2.74 KB
/*=========================================================================
Program: Visualization Toolkit
Module: vtkAdjacentVertexIterator.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*-------------------------------------------------------------------------
Copyright 2008 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
// .NAME vtkAdjacentVertexIterator - Iterates through adjacent vertices in a graph.
//
// .SECTION Description
// vtkAdjacentVertexIterator iterates through all vertices adjacent to a
// vertex, i.e. the vertices which may be reached by traversing an out edge
// of the source vertex. Use graph->GetAdjacentVertices(v, it) to initialize
// the iterator.
//
// .SECTION See Also
//
// .SECTION Thanks
//
#ifndef __vtkAdjacentVertexIterator_h
#define __vtkAdjacentVertexIterator_h
#include "vtkObject.h"
#include "vtkGraph.h" // For edge type definitions
class vtkGraphEdge;
class VTK_FILTERING_EXPORT vtkAdjacentVertexIterator : public vtkObject
{
public:
static vtkAdjacentVertexIterator *New();
vtkTypeMacro(vtkAdjacentVertexIterator, vtkObject);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Initialize the iterator with a graph and vertex.
void Initialize(vtkGraph *g, vtkIdType v);
// Description:
// Get the graph and vertex associated with this iterator.
vtkGetObjectMacro(Graph, vtkGraph);
vtkGetMacro(Vertex, vtkIdType);
// Description:
// Returns the next edge in the graph.
vtkIdType Next()
{
vtkOutEdgeType e = *this->Current;
++this->Current;
return e.Target;
}
// Description:
// Whether this iterator has more edges.
bool HasNext()
{
return this->Current != this->End;
}
protected:
vtkAdjacentVertexIterator();
~vtkAdjacentVertexIterator();
// Description:
// Protected method for setting the graph used
// by Initialize().
virtual void SetGraph(vtkGraph *graph);
vtkGraph *Graph;
const vtkOutEdgeType *Current;
const vtkOutEdgeType *End;
vtkIdType Vertex;
private:
vtkAdjacentVertexIterator(const vtkAdjacentVertexIterator&); // Not implemented.
void operator=(const vtkAdjacentVertexIterator&); // Not implemented.
};
#endif