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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"
#include "itkVTKImageIO.h"
#include "itkRandomImageSource.h"
#include <fstream>
#include <iostream>
#define SPECIFIC_IMAGEIO_MODULE_TEST
template<typename TScalar, unsigned int TDimension>
int ReadWrite(TScalar low, TScalar hi, char *file1, char *file2, bool ascii)
{
typedef itk::Image<TScalar,TDimension> ImageType;
// Create a source object (in this case a random image generator).
// The source object is templated on the output type.
//
typename ImageType::SizeValueType size[TDimension];
for (unsigned int i = 0; i < TDimension; i++)
{
size[i]= 2 << (i + 1);
}
typename itk::RandomImageSource<ImageType>::Pointer random;
random = itk::RandomImageSource<ImageType>::New();
low = hi = static_cast<TScalar>(127);
random->SetMin(low);
random->SetMax(hi);
random->SetSize(size);
typename ImageType::SpacingValueType spacing[3] = {5.0f, 10.0f, 15.0f};
typename ImageType::PointValueType origin[3] = {-5.0f, -10.0f, -15.0f};
random->SetSpacing(spacing);
random->SetOrigin(origin);
// Create a mapper (in this case a writer). A mapper
// is templated on the input type.
//
itk::VTKImageIO::Pointer vtkIO;
vtkIO = itk::VTKImageIO::New();
if (ascii)
{
vtkIO->SetFileTypeToASCII();
}
else
{
vtkIO->SetFileTypeToBinary();
}
// Write out the image
typename itk::ImageFileWriter<ImageType>::Pointer writer;
writer = itk::ImageFileWriter<ImageType>::New();
writer->SetInput(random->GetOutput());
writer->SetFileName(file1);
writer->SetImageIO(vtkIO);
writer->Write();
// Check that the correct content was written to the header.
std::ifstream istrm(file1);
char firstline[25];
istrm.getline( firstline, 24 );
istrm.close();
if( strncmp( firstline, "# vtk DataFile Version ", 24 ) != 0 )
{
std::cout << "Header string was not written properly." << std::endl;
return EXIT_FAILURE;
}
if ( !vtkIO->CanReadFile(file1) )
{
return EXIT_FAILURE;
}
// Create a source object (in this case a reader)
typename itk::ImageFileReader<ImageType>::Pointer reader;
reader = itk::ImageFileReader<ImageType>::New();
reader->SetImageIO(vtkIO);
reader->SetFileName(file1);
reader->Update();
writer->SetInput(reader->GetOutput());
writer->SetFileName(file2);
writer->Write();
return EXIT_SUCCESS;
}
template<typename TScalar>
int Test1Type(char *file1, char *file2)
{
int status = 0;
status += ReadWrite<TScalar,2>(itk::NumericTraits<TScalar>::NonpositiveMin(),
itk::NumericTraits<TScalar>::max(),
file1, file2, false);
status += ReadWrite<TScalar,2>(itk::NumericTraits<TScalar>::NonpositiveMin(),
itk::NumericTraits<TScalar>::max(),
file1, file2, true);
status += ReadWrite<TScalar,3>(itk::NumericTraits<TScalar>::NonpositiveMin(),
itk::NumericTraits<TScalar>::max(),
file1, file2, false);
status += ReadWrite<TScalar,3>(itk::NumericTraits<TScalar>::NonpositiveMin(),
itk::NumericTraits<TScalar>::max(),
file1, file2, true);
return status;
}
int itkVTKImageIOTest(int argc, char* argv[] )
{
if( argc < 3 )
{
std::cerr << "Usage: " << std::endl;
std::cerr << argv[0] << " output1 output2 " << std::endl;
return EXIT_FAILURE;
}
char* file1 = argv[1];
char* file2 = argv[2];
int status = 0;
status += Test1Type<float>(file1, file2);
status += Test1Type<double>(file1, file2);
status += Test1Type<unsigned char>(file1, file2);
status += Test1Type<char>(file1, file2);
status += Test1Type<unsigned short>(file1, file2);
status += Test1Type<short>(file1, file2);
status += Test1Type<unsigned int>(file1, file2);
status += Test1Type<int>(file1, file2);
status += Test1Type<unsigned long>(file1, file2);
status += Test1Type<long>(file1, file2);
status += Test1Type<unsigned long long>(file1, file2);
status += Test1Type<long long>(file1, file2);
return status;
}
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