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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 "antsUtilities.h"
#include "antsCommandLineParser.h"
#include "itkTransformFileReader.h"
#include "itkMatrixOffsetTransformBase.h"
#include "itkCompositeTransform.h"
#include <sstream>
namespace ants
{
// entry point for the library; parameter 'args' is equivalent to 'argv' in (argc,argv) of commandline parameters to
// 'main()'
int
antsTransformInfo(std::vector<std::string> args, std::ostream * /*out_stream = nullptr */)
{
// put the arguments coming in as 'args' into standard (argc,argv) format;
// 'args' doesn't have the command name as first, argument, so add it manually;
// 'args' may have adjacent arguments concatenated into one argument,
// which the parser should handle
args.insert(args.begin(), "antsTransformInfo");
int argc = args.size();
char ** argv = new char *[args.size() + 1];
for (unsigned int i = 0; i < args.size(); ++i)
{
// allocate space for the string plus a null character
argv[i] = new char[args[i].length() + 1];
std::strncpy(argv[i], args[i].c_str(), args[i].length());
// place the null character in the end
argv[i][args[i].length()] = '\0';
}
argv[argc] = nullptr;
// class to automatically cleanup argv upon destruction
class Cleanup_argv
{
public:
Cleanup_argv(char ** argv_, int argc_plus_one_)
: argv(argv_)
, argc_plus_one(argc_plus_one_)
{}
~Cleanup_argv()
{
for (unsigned int i = 0; i < argc_plus_one; ++i)
{
delete[] argv[i];
}
delete[] argv;
}
private:
char ** argv;
unsigned int argc_plus_one;
};
Cleanup_argv cleanup_argv(argv, argc + 1);
using ReadScalarType = double;
for (int i = 1; i < argc; i++)
{
std::cout << "Transform file: " << argv[i] << std::endl;
using TransformReaderType = itk::TransformFileReaderTemplate<ReadScalarType>;
auto reader = TransformReaderType::New();
reader->SetFileName(argv[i]);
try
{
reader->Update();
}
catch (const itk::ExceptionObject & excp)
{
std::cerr << "Error while reading the transform file" << std::endl;
std::cerr << excp << std::endl;
std::cerr << "[FAILED]" << std::endl;
return EXIT_FAILURE;
}
const TransformReaderType::TransformListType * transforms = reader->GetTransformList();
std::cout << "Number of transforms = " << transforms->size() << std::endl;
unsigned int Dimension = transforms->front()->GetInputSpaceDimension();
for (auto it = transforms->begin(); it != transforms->end(); ++it)
{
if (Dimension == 3)
{
using ReadCompositeTransformType3D = itk::CompositeTransform<ReadScalarType, 3>;
if (!strcmp((*it)->GetNameOfClass(), "CompositeTransform"))
{
ReadCompositeTransformType3D::Pointer compositeRead =
static_cast<ReadCompositeTransformType3D *>((*it).GetPointer());
const ReadCompositeTransformType3D::TransformQueueType & compositeTransformQueue =
compositeRead->GetTransformQueue();
std::cout << "Number of transforms in composite queue = " << compositeTransformQueue.size() << std::endl;
for (auto it2 = compositeTransformQueue.begin(); it2 != compositeTransformQueue.end(); ++it2)
{
using TransformType3D = itk::MatrixOffsetTransformBase<double, 3, 3>;
TransformType3D * itktx3d = dynamic_cast<TransformType3D *>((*it2).GetPointer());
if (itktx3d)
{
itktx3d->Print(std::cout);
std::cout << "Determinant: " << vnl_determinant(itktx3d->GetMatrix().GetVnlMatrix()) << std::endl;
}
else
{
it2->Print(std::cout);
}
}
}
else
{
using TransformType3D = itk::MatrixOffsetTransformBase<double, 3, 3>;
TransformType3D * itktx3d = dynamic_cast<TransformType3D *>((*it).GetPointer());
itktx3d->Print(std::cout);
std::cout << "Determinant: " << vnl_determinant(itktx3d->GetMatrix().GetVnlMatrix()) << std::endl;
}
}
else if (Dimension == 2)
{
using ReadCompositeTransformType2D = itk::CompositeTransform<ReadScalarType, 2>;
if (!strcmp((*it)->GetNameOfClass(), "CompositeTransform"))
{
ReadCompositeTransformType2D::Pointer compositeRead =
static_cast<ReadCompositeTransformType2D *>((*it).GetPointer());
const ReadCompositeTransformType2D::TransformQueueType & compositeTransformQueue =
compositeRead->GetTransformQueue();
std::cout << "Number of transforms in composite queue = " << compositeTransformQueue.size() << std::endl;
for (auto it2 = compositeTransformQueue.begin(); it2 != compositeTransformQueue.end(); ++it2)
{
using TransformType2D = itk::MatrixOffsetTransformBase<double, 2, 2>;
TransformType2D * itktx2d = dynamic_cast<TransformType2D *>((*it2).GetPointer());
if (itktx2d)
{
itktx2d->Print(std::cout);
std::cout << "Determinant: " << vnl_determinant(itktx2d->GetMatrix().GetVnlMatrix()) << std::endl;
}
else
{
it2->Print(std::cout);
}
}
}
else
{
using TransformType2D = itk::MatrixOffsetTransformBase<double, 2, 2>;
TransformType2D * itktx2d = dynamic_cast<TransformType2D *>((*it).GetPointer());
itktx2d->Print(std::cout);
std::cout << "Determinant: " << vnl_determinant(itktx2d->GetMatrix().GetVnlMatrix()) << std::endl;
}
}
}
}
return EXIT_SUCCESS;
}
} // namespace ants
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