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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 "itkVTKImageIO.h"
#include "itkImageFileWriter.h"
#include "itkImageFileReader.h"
#include "itkPipelineMonitorImageFilter.h"
#include "itkStreamingImageFilter.h"
int itkVTKImageIO2Test2(int argc, char* argv[])
{
//
// This test is designed to test the non-streaming capabilities of
// VTKImageIO with tensors
//
if( argc < 2 )
{
std::cerr << "Usage: " << argv[0] << " outputFileName" << std::endl;
return EXIT_FAILURE;
}
std::string outputFileName = argv[1];
typedef itk::SymmetricSecondRankTensor<double, 3> PixelType;
typedef itk::Image< PixelType, 3 > ImageType;
typedef itk::ImageFileReader< ImageType > ReaderType;
typedef itk::ImageFileWriter< ImageType > WriterType;
// write a 10^3 image
{
// allocate an 10x10x10 image
ImageType::Pointer image = ImageType::New();
ImageType::SizeType imageSize;
imageSize.Fill(10);
image->SetRegions( imageSize );
image->Allocate();
unsigned int cnt = 0;
itk::ImageRegionIterator< ImageType > i( image, image->GetLargestPossibleRegion() );
i.GoToBegin();
while (! i.IsAtEnd() )
{
// fill the image switching between these pixels
switch (cnt*3%5)
{
case 0:
i.Set( itk::NumericTraits<PixelType>::ZeroValue() );
break;
case 1:
i.Set( itk::NumericTraits<PixelType>::OneValue() );
break;
case 2:
i.Set( itk::NumericTraits<PixelType>::OneValue() );
break;
}
++cnt;
++i;
}
typedef itk::VTKImageIO IOType;
IOType::Pointer vtkIO = IOType::New();
WriterType::Pointer writer = WriterType::New();
writer->SetImageIO( vtkIO );
writer->SetInput( image );
writer->SetFileName( outputFileName.c_str() );
writer->Update();
}
// check that a request to stream is not
{
typedef itk::VTKImageIO IOType;
IOType::Pointer vtkIO = IOType::New();
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName( outputFileName.c_str() );
reader->SetImageIO( vtkIO );
typedef itk::PipelineMonitorImageFilter<ImageType> MonitorFilter;
MonitorFilter::Pointer monitor = MonitorFilter::New();
monitor->SetInput(reader->GetOutput());
const unsigned int numberOfDataPieces = 10;
typedef itk::StreamingImageFilter<ImageType, ImageType> StreamingFilter;
StreamingFilter::Pointer streamer = StreamingFilter::New();
streamer->SetInput(monitor->GetOutput());
streamer->SetNumberOfStreamDivisions(numberOfDataPieces);
streamer->Update();
bool passed = true;
if( !monitor->VerifyAllInputCanNotStream() )
{
passed = false;
}
if( !passed )
{
std::cout << monitor << std::endl;
std::cout << "pipeline did not execute as expected!" << std::endl;
return EXIT_FAILURE;
}
}
// request to stream write but is should be denied
{
typedef itk::VTKImageIO IOType;
IOType::Pointer vtkIO = IOType::New();
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName( outputFileName.c_str() );
reader->SetImageIO( vtkIO );
reader->UpdateLargestPossibleRegion();
typedef itk::PipelineMonitorImageFilter<ImageType> MonitorFilter;
MonitorFilter::Pointer monitor = MonitorFilter::New();
monitor->SetInput(reader->GetOutput());
const unsigned int numberOfDataPieces = 10;
WriterType::Pointer writer = WriterType::New();
writer->SetImageIO( vtkIO );
writer->SetInput( monitor->GetOutput() );
writer->SetNumberOfStreamDivisions( numberOfDataPieces );
writer->SetFileName( outputFileName.c_str() );
writer->Update();
bool passed = true;
if( !monitor->VerifyAllInputCanNotStream() )
{
passed = false;
}
if( !passed )
{
std::cout << monitor << std::endl;
std::cout << "pipeline did not execute as expected!" << std::endl;
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
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