/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkImagePointIterator.cxx

  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.

=========================================================================*/

#include "vtkImagePointIterator.h"
#include "vtkImageData.h"

//------------------------------------------------------------------------------
vtkImagePointIterator::vtkImagePointIterator()
{
  this->Origin[0] = 0.0;
  this->Origin[1] = 0.0;
  this->Origin[2] = 0.0;
  this->Spacing[0] = 1.0;
  this->Spacing[1] = 1.0;
  this->Spacing[2] = 1.0;
  this->Position[0] = 0.0;
  this->Position[1] = 0.0;
  this->Position[2] = 0.0;
}

//------------------------------------------------------------------------------
vtkImagePointIterator::vtkImagePointIterator(vtkImageData* image, const int extent[6],
  vtkImageStencilData* stencil, vtkAlgorithm* algorithm, int threadId)
  : vtkImagePointDataIterator(image, extent, stencil, algorithm, threadId)
{
  image->GetOrigin(this->Origin);
  image->GetSpacing(this->Spacing);
  this->UpdatePosition();
}

//------------------------------------------------------------------------------
void vtkImagePointIterator::Initialize(vtkImageData* image, const int extent[6],
  vtkImageStencilData* stencil, vtkAlgorithm* algorithm, int threadId)
{
  this->vtkImagePointDataIterator::Initialize(image, extent, stencil, algorithm, threadId);
  image->GetOrigin(this->Origin);
  image->GetSpacing(this->Spacing);
  this->UpdatePosition();
}