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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkSliceIteratorTest.cxx,v $
Language: C++
Date: $Date: 2003-09-10 14:30:10 $
Version: $Revision: 1.23 $
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 "itkImage.h"
#include "itkNeighborhood.h"
#include "itkSliceIterator.h"
#include "itkConstSliceIterator.h"
#include "itkImageRegionIterator.h"
#include "itkNeighborhoodIterator.h"
#include <iostream>
template< class T, unsigned int N >
void FillRegionSequential(itk::SmartPointer< itk::Image<T, N> > I)
{
unsigned int iDim, ArrayLength, i;
itk::Size<N> Index;
unsigned long int Location[N];
unsigned int mult;
T value;
itk::ImageRegionIterator<itk::Image<T, N> > data(I, I->GetRequestedRegion());
Index = (I->GetRequestedRegion()).GetSize();
for (ArrayLength=1, iDim = 0; iDim<N; ++iDim)
{
Location[iDim] =0;
ArrayLength*=Index[iDim];
}
for (i=0; i<ArrayLength; ++i, ++data)
{
for (iDim=0, mult=1, value=0; iDim<N; ++iDim, mult*=10)
{
value += mult * Location[N-iDim-1];
}
data.Set( value );
iDim = N-1;
bool done=false;
while(!done)
{
++Location[iDim];
if(Location[iDim] == Index[(N-1)-iDim])
{ Location[iDim] = 0; }
else
{ done = true; }
if(iDim == 0)
{ done = true; }
else
{ --iDim; }
}
}
}
template< class T, unsigned int VDimension >
void PrintRegion(itk::SmartPointer< itk::Image<T, VDimension> > I)
{
unsigned int iDim;
long rsz[VDimension];
long Location[VDimension];
memcpy(rsz, I->GetRequestedRegion().GetSize().m_Size,
sizeof(unsigned long) * VDimension);
memset(Location, 0, sizeof(unsigned long) * VDimension);
for (iDim = 0; iDim < VDimension; ++iDim)
{
std::cout << "iDim = " << iDim << std::endl;
std::cout << "\tRegionSize = "
<< I->GetRequestedRegion().GetSize().m_Size[iDim]
<< std::endl;
std::cout << "\tRegionStartIndex = "
<< I->GetRequestedRegion().GetIndex()[iDim] << std::endl;
}
itk::ImageRegionIterator<itk::Image<T, VDimension> > iter( I, I->GetRequestedRegion());
for (; ! iter.IsAtEnd(); ++iter)
{
std::cout << iter.Get() << " ";
iDim=VDimension-1;
bool done=false;
while(!done)
{
++Location[iDim];
if(Location[iDim]==rsz[(VDimension-1)-iDim])
{
std::cout << std::endl;
Location[iDim]=0;
}
else
{ done = true; }
if(iDim == 0)
{ done = true; }
else
{ --iDim; }
}
}
}
template <class TContainer>
void PrintSlice(TContainer s)
{
std::cout << "[" ;
for (s=s.Begin(); s < s.End(); s++)
{
std::cout << *s << " ";
}
std::cout << "]" << std::endl;
}
int itkSliceIteratorTest(int, char* [] )
{
// tests non-const slice iterator
try {
itk::ImageRegion<2> reg;
itk::Size<2> hoodRadius;
itk::Size<2> imgSize;
itk::Index<2> zeroIndex;
zeroIndex[0]=zeroIndex[1]=0;
imgSize[0]=imgSize[1]=20;
hoodRadius[0]=hoodRadius[1]=2;
reg.SetIndex(zeroIndex);
reg.SetSize(imgSize);
std::slice hslice(10, 5, 1); // slice through the horizontal center
std::slice vslice(2, 5, 5); // slice through the vertical center
itk::Neighborhood<int, 2> temp;
itk::SliceIterator<int, itk::Neighborhood<int,2> > hnsi(&temp, hslice);
itk::SliceIterator<int, itk::Neighborhood<int,2> > vnsi(&temp, vslice);
itk::ConstSliceIterator<int, itk::Neighborhood<int,2> > hnsi2(&temp, hslice);
itk::ConstSliceIterator<int, itk::Neighborhood<int,2> > vnsi2(&temp, vslice);
itk::Neighborhood<int, 2> op;
op.SetRadius(hoodRadius);
itk::Index<2> idx;
idx[0]=idx[1]=0;
itk::Image<int, 2>::Pointer ip = itk::Image<int,2>::New();
ip->SetRequestedRegion(reg);
ip->SetBufferedRegion(reg);
ip->SetLargestPossibleRegion(reg);
ip->Allocate();
FillRegionSequential<int, 2>(ip);
PrintRegion<int,2>(ip);
itk::NeighborhoodIterator<itk::Image<int,2> >
it(hoodRadius, ip, reg);
for (it.GoToBegin(); !it.IsAtEnd(); ++it)
{
temp = it.GetNeighborhood();
temp.Print(std::cout);
PrintSlice(hnsi);
PrintSlice(vnsi);
PrintSlice(hnsi2);
PrintSlice(vnsi2);
}
}
catch (itk::ExceptionObject &err)
{
(&err)->Print(std::cerr);
return 2;
}
return EXIT_SUCCESS;
}
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