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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkFloodFilledSpatialFunctionTest.cxx
Language: C++
Date: $Date$
Version: $Revision$
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
/*
This file test the various inclusion strategies available
to itkFloodFilledSpatialFunctionConditionalIterator.
*/
#include <stdio.h>
#include "itkSize.h"
#include "itkIndex.h"
#include "itkImage.h"
#include "itkImageRegionIterator.h"
#include "itkPoint.h"
#include "itkSphereSpatialFunction.h"
#include "itkFloodFilledSpatialFunctionConditionalIterator.h"
int itkFloodFilledSpatialFunctionTest(int, char* [])
{
const unsigned int dim = 2;
// Image typedef
typedef itk::Image< bool, dim > ImageType;
typedef ImageType::SizeValueType SizeValueType;
typedef ImageType::SpacingValueType SpacingValueType;
typedef ImageType::PointValueType PointValueType;
// Image size and spacing parameters
SizeValueType sourceImageSize[] = { 5, 5};
SpacingValueType sourceImageSpacing[] = { 1.0,1.0 };
PointValueType sourceImageOrigin[] = { 0,0 };
// Creates the sourceImage (but doesn't set the size or allocate memory)
ImageType::Pointer sourceImage = ImageType::New();
sourceImage->SetOrigin(sourceImageOrigin);
sourceImage->SetSpacing(sourceImageSpacing);
// Create a size object native to the sourceImage type
ImageType::SizeType sourceImageSizeObject;
// Set the size object to the array defined earlier
sourceImageSizeObject.SetSize( sourceImageSize );
// Create a region object native to the sourceImage type
ImageType::RegionType largestPossibleRegion;
// Resize the region
largestPossibleRegion.SetSize( sourceImageSizeObject );
// Set the largest legal region size (i.e. the size of the whole sourceImage) to what we just defined
sourceImage->SetLargestPossibleRegion( largestPossibleRegion );
// Set the buffered region
sourceImage->SetBufferedRegion( largestPossibleRegion );
// Set the requested region
sourceImage->SetRequestedRegion( largestPossibleRegion );
// Now allocate memory for the sourceImage
sourceImage->Allocate();
// Loop over all available iterator strategies
for(int strat = 0; strat < 4; strat++)
{
// Initialize the image to hold all 0's
itk::ImageRegionIterator<ImageType> it =
itk::ImageRegionIterator<ImageType>(sourceImage, largestPossibleRegion);
for(it.GoToBegin(); !it.IsAtEnd(); ++it)
{
it.Set(0);
}
// Create and initialize a spatial function
typedef itk::SphereSpatialFunction<dim> FunctionType;
typedef FunctionType::InputType FunctionPositionType;
FunctionType::Pointer spatialFunc = FunctionType::New();
spatialFunc->SetRadius( 1.0 );
FunctionPositionType center;
center[0] = 2.5;
center[1] = 2.5;
spatialFunc->SetCenter(center);
// Create and initialize a spatial function iterator
ImageType::IndexType seedPos;
const ImageType::IndexValueType pos[] = {2,2};
seedPos.SetIndex(pos);
typedef itk::FloodFilledSpatialFunctionConditionalIterator
<ImageType, FunctionType> ItType;
ItType sfi = ItType(sourceImage, spatialFunc, seedPos);
switch(strat){
case 0:
{
sfi.SetOriginInclusionStrategy();
}
break;
case 1:
{
sfi.SetCenterInclusionStrategy();
}
break;
case 2:
{
sfi.SetCompleteInclusionStrategy();
}
break;
case 3:
{
sfi.SetIntersectInclusionStrategy();
}
} // end switch inclusion strategy
// Iterate through the entire image and set interior pixels to 1
for( sfi.GoToBegin(); !( sfi.IsAtEnd() ); ++sfi)
{
sfi.Set(1);
}
} // end loop over iterator strategies
return EXIT_SUCCESS;
}
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