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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkPolylineMask2DImageFilterTest.cxx,v $
Language: C++
Date: $Date: 2007-06-20 13:04:25 $
Version: $Revision: 1.8 $
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 <itkImageRegionIteratorWithIndex.h>
#include <itkPolylineMask2DImageFilter.h>
#include <itkPolyLineParametricPath.h>
#include <itkImageFileWriter.h>
int itkPolylineMask2DImageFilterTest(int , char* [] )
{
// Declare the types of the images
typedef itk::Image<unsigned char, 2> inputImageType;
typedef itk::Image<unsigned char, 2> outputImageType;
typedef itk::PolyLineParametricPath<2> inputPolylineType;
// Declare the type of the index to access images
typedef inputImageType::IndexType inputIndexType;
// Declare the type of the size
typedef inputImageType::SizeType inputSizeType;
// Declare the type of the Region
typedef inputImageType::RegionType inputRegionType;
// Create images
inputImageType::Pointer inputImage = inputImageType::New();
// Create polyline
inputPolylineType::Pointer inputPolyline = inputPolylineType::New();
// Define their size, and start index
inputSizeType size;
size[0] = 512;
size[1] = 512;
inputIndexType start;
start[0] = 0;
start[1] = 0;
inputRegionType region;
region.SetIndex( start );
region.SetSize( size );
// Initialize input image
inputImage->SetLargestPossibleRegion( region );
inputImage->SetBufferedRegion( region );
inputImage->SetRequestedRegion( region );
inputImage->Allocate();
inputImage->FillBuffer(0);
inputImageType::SpacingType spacing; spacing.Fill(.1);
inputImage->SetSpacing(spacing);
// Declare Iterator types apropriated for each image
typedef itk::ImageRegionIteratorWithIndex<inputImageType> inputIteratorType;
// Create one iterator for Image A (this is a light object)
inputIteratorType it( inputImage, inputImage->GetBufferedRegion() );
it.GoToBegin();
while( !it.IsAtEnd() )
{
/* fill in only the upper part of the image */
if(it.GetIndex()[1] > 256)
{
it.Set( 255 );
}
++it;
}
// Initialize the polyline
typedef inputPolylineType::VertexType VertexType;
// Add vertices to the polyline
VertexType v;
v[0] = 12.8;
v[1] = 25.6;
inputPolyline->AddVertex(v);
v[0] = 25.6;
v[1] = 39.4;
inputPolyline->AddVertex(v);
v[0] = 39.4;
v[1] = 25.6;
inputPolyline->AddVertex(v);
v[0] = 25.6;
v[1] = 12.8;
inputPolyline->AddVertex(v);
// Declare the type for the Mask image filter
typedef itk::PolylineMask2DImageFilter<
inputImageType, inputPolylineType,
outputImageType > inputFilterType;
// Create a mask Filter
inputFilterType::Pointer filter = inputFilterType::New();
// Connect the input image
filter->SetInput1 ( inputImage );
// Connect the Polyline
filter->SetInput2 ( inputPolyline );
try
{
filter->Update();
}
catch( itk::ExceptionObject & err )
{
std::cout << "Caught an unexpected exception. " << std::endl;
std::cout << err << std::endl;
return EXIT_FAILURE;
}
// Now cause and exception
v[0] = 256.0;
v[1] = 12.8;
inputPolyline->AddVertex(v);
try
{
filter->Update();
}
catch( itk::ExceptionObject & err )
{
std::cout << "Caught an expected exception. " << std::endl;
std::cout << err << std::endl;
return EXIT_SUCCESS;
}
return EXIT_FAILURE;
}
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