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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include "itkImageFileWriter.h"
#include "itkImageFileReader.h"
#define SPECIFIC_IMAGEIO_MODULE_TEST
//
// This class tests that we can create a 3D image, with a specific direction
// matrix, save it as 3D image and read it back as a 3D image or as a 2D image.
//
class AnalyzeIODirectionHelper
{
public:
typedef unsigned char PixelType;
typedef itk::Image< PixelType, 3 > Image3DType;
typedef Image3DType::DirectionType Direction3DType;
public:
AnalyzeIODirectionHelper()
{
this->InitializeAxialDirection();
this->InitializeSagittalDirection();
this->InitializeCoronalDirection();
}
void Test()
{
std::cout << std::endl;
std::cout << "--------------------------------" << std::endl;
std::cout << "Testing Axial..." << std::endl;
this->Test( this->m_AxialDirection, "Axial" );
std::cout << "--------------------------------" << std::endl;
std::cout << "Testing Sagittal..." << std::endl;
this->Test( this->m_SagittalDirection, "Sagittal" );
std::cout << "--------------------------------" << std::endl;
std::cout << "Testing Coronal..." << std::endl;
this->Test( this->m_CoronalDirection, "Coronal" );
}
void Test( const Direction3DType & direction, const char * directionLabel )
{
Image3DType::Pointer image3D = Image3DType::New();
std::cout << "Direction = " << std::endl;
std::cout << direction << std::endl;
Image3DType::SizeType size3D;
size3D.Fill(50);
Image3DType::RegionType region3D;
region3D.SetSize( size3D );
image3D->SetRegions( region3D );
image3D->Allocate(true); // initialize buffer to zero
image3D->SetDirection( direction );
typedef itk::ImageFileWriter< Image3DType > Writer3DType;
typedef itk::ImageFileReader< Image3DType > Reader3DType;
Writer3DType::Pointer writer3D = Writer3DType::New();
writer3D->SetInput( image3D );
std::string fileName = this->m_OutputDirectory;
fileName += "/AnalyzeIODirectionTest";
fileName += directionLabel;
fileName += ".hdr";
writer3D->SetFileName( fileName );
std::cout << "Writing 3D..." << std::endl;
std::cout << fileName << std::endl;
writer3D->Update();
Reader3DType::Pointer reader3D = Reader3DType::New();
reader3D->SetFileName( fileName );
std::cout << "Reading 3D...";
reader3D->Update();
std::cout << "PASSED !" << std::endl;
std::cout << "Read 3D Direction = " << std::endl;
std::cout << reader3D->GetOutput()->GetDirection() << std::endl;
}
void SetOutputDirectory( const char * directoryName )
{
this->m_OutputDirectory = directoryName;
}
void InitializeCoronalDirection()
{
this->m_CoronalDirection[0][0] = 1.0;
this->m_CoronalDirection[0][1] = 0.0;
this->m_CoronalDirection[0][2] = 0.0;
this->m_CoronalDirection[1][0] = 0.0;
this->m_CoronalDirection[1][1] = 0.0;
this->m_CoronalDirection[1][2] = -1.0;
this->m_CoronalDirection[2][0] = 0.0;
this->m_CoronalDirection[2][1] = 1.0;
this->m_CoronalDirection[2][2] = 0.0;
}
void InitializeSagittalDirection()
{
this->m_SagittalDirection[0][0] = 0.0;
this->m_SagittalDirection[0][1] = 0.0;
this->m_SagittalDirection[0][2] = 1.0;
this->m_SagittalDirection[1][0] = -1.0;
this->m_SagittalDirection[1][1] = 0.0;
this->m_SagittalDirection[1][2] = 0.0;
this->m_SagittalDirection[2][0] = 0.0;
this->m_SagittalDirection[2][1] = 1.0;
this->m_SagittalDirection[2][2] = 0.0;
}
void InitializeAxialDirection()
{
this->m_AxialDirection[0][0] = 1.0;
this->m_AxialDirection[0][1] = 0.0;
this->m_AxialDirection[0][2] = 0.0;
this->m_AxialDirection[1][0] = 0.0;
this->m_AxialDirection[1][1] = -1.0;
this->m_AxialDirection[1][2] = 0.0;
this->m_AxialDirection[2][0] = 0.0;
this->m_AxialDirection[2][1] = 0.0;
this->m_AxialDirection[2][2] = 1.0;
}
private:
std::string m_OutputDirectory;
Direction3DType m_AxialDirection;
Direction3DType m_SagittalDirection;
Direction3DType m_CoronalDirection;
};
int itkAnalyzeImageIODirectionsTest( int argc, char * argv [] )
{
if( argc != 2 )
{
std::cerr << "Usage : " << std::endl;
std::cerr << argv[0] << " outputDirectory " << std::endl;
}
AnalyzeIODirectionHelper testHelper;
testHelper.SetOutputDirectory( argv[1] );
try
{
testHelper.Test();
}
catch( itk::ExceptionObject & excp )
{
std::cerr << excp << std::endl;
return EXIT_FAILURE;
}
catch( ... )
{
std::cerr << "Caught non ITK exception" << std::endl;
return EXIT_FAILURE;
}
std::cout << "Test PASSED !" << std::endl;
return EXIT_SUCCESS;
}
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