vtkImageIterator.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkImageIterator.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.
 
=========================================================================*/
#ifndef vtkImageIterator_h
#define vtkImageIterator_h
 
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkSystemIncludes.h"
class vtkImageData;
 
template<class DType>
class VTKCOMMONDATAMODEL_EXPORT vtkImageIterator
{
public:
  typedef DType *SpanIterator;
 
  vtkImageIterator();
 
  vtkImageIterator(vtkImageData *id, int *ext);
 
  void Initialize(vtkImageData *id, int *ext);
 
  void NextSpan();
 
 
  SpanIterator BeginSpan()
    {
    return this->Pointer;
    }
 
 
  SpanIterator EndSpan()
    {
    return this->SpanEndPointer;
    }
 
 
  int IsAtEnd()
    {
    return (this->Pointer >= this->EndPointer);
    }
 
protected:
  DType *Pointer;
  DType *SpanEndPointer;
  DType *SliceEndPointer;
  DType *EndPointer;
  vtkIdType    Increments[3];
  vtkIdType    ContinuousIncrements[3];
};
 
#ifdef VTK_NO_EXPLICIT_TEMPLATE_INSTANTIATION
#include "vtkImageIterator.txx"
#endif
 
#endif
// VTK-HeaderTest-Exclude: vtkImageIterator.h