itkpixelaccesstest.cxx

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkPixelAccessTest.cxx,v $
  Language:  C++
  Date:      $Date: 2007-08-20 13:00:21 $
  Version:   $Revision: 1.20 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/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 notices for more information.

=========================================================================*/
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif
#include <iostream>

#include "itkImage.h"
#include "itkVector.h"


// This routine is used to make sure that we call the "const" version
// of GetPixel() (via the operator[])
template <class T, unsigned int VImageDimension>
void TestConstPixelAccess(const itk::Image<T, VImageDimension> &in,
                          itk::Image<T, VImageDimension> &out)
{
  typename itk::Image<T, VImageDimension>::IndexType regionStartIndex3D = {{5, 10, 15}};
  typename itk::Image<T, VImageDimension>::IndexType regionEndIndex3D = {{8, 15, 17}};

  T vec;

  vec[0] = 5;
  vec[1] = 4;
  vec[2] = 3;
  vec[3] = 2;
  vec[4] = 1;
  out[regionStartIndex3D] = vec;
  out[regionEndIndex3D] = in[regionStartIndex3D];
}


int itkPixelAccessTest(int, char* [] )
{
  std::cout << "Creating an image" << std::endl;
  itk::Image<itk::Vector<unsigned short, 5>, 3>::Pointer
    o3 = itk::Image<itk::Vector<unsigned short, 5>, 3>::New();

  float origin3D[3] = { 5, 2.1, 8.1};
  float spacing3D[3] = { 1.5, 2.1, 1};

  itk::Image<itk::Vector<unsigned short, 5>, 3>::SizeType imageSize3D = {{ 20, 40, 60 }};
  itk::Image<itk::Vector<unsigned short, 5>, 3>::SizeType bufferSize3D = {{ 8, 20, 14 }};

  itk::Image<itk::Vector<unsigned short, 5>, 3>::IndexType startIndex3D = {{5, 4, 1}};
  itk::Image<itk::Vector<unsigned short, 5>, 3>::IndexType bufferStartIndex3D = {{2, 3, 5}};
  itk::Image<itk::Vector<unsigned short, 5>, 3>::IndexType regionStartIndex3D = {{5, 10, 12}};
  itk::Image<itk::Vector<unsigned short, 5>, 3>::IndexType regionEndIndex3D = {{8, 15, 17}};

  itk::Image<itk::Vector<unsigned short, 5>, 3>::RegionType region;
  region.SetSize(imageSize3D);
  region.SetIndex(startIndex3D);
  o3->SetLargestPossibleRegion( region );
  region.SetSize(bufferSize3D);
  region.SetIndex(bufferStartIndex3D);
  o3->SetBufferedRegion( region );

  o3->SetOrigin(origin3D);
  o3->SetSpacing(spacing3D);

  o3->Allocate();

  std::cout << "Setting/Getting a pixel" << std::endl;
  itk::Vector<unsigned short, 5> vec;
  vec[0] = 5;
  vec[1] = 4;
  vec[2] = 3;
  vec[3] = 2;
  vec[4] = 1;

  
  (*o3)[regionStartIndex3D] = vec;
  (*o3)[regionEndIndex3D] = (*o3)[regionStartIndex3D];
  TestConstPixelAccess(*o3, *o3);

  return EXIT_SUCCESS;
}