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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkMatlabTransformIO.cxx
Language: C++
Date: $Date$
Version: $Revision$
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.
=========================================================================*/
#include "itkMatlabTransformIO.h"
#include <itksys/SystemTools.hxx>
#include <vnl/vnl_matlab_read.h>
#include <vnl/vnl_matlab_write.h>
namespace itk
{
MatlabTransformIO::
MatlabTransformIO()
{
}
MatlabTransformIO::
~MatlabTransformIO()
{
}
bool
MatlabTransformIO::
CanReadFile(const char *fileName)
{
return itksys::SystemTools::GetFilenameLastExtension(fileName) == ".mat";
}
bool
MatlabTransformIO::
CanWriteFile(const char *fileName)
{
return itksys::SystemTools::GetFilenameLastExtension(fileName) == ".mat";
}
//
// ReadMat -- we always want double precision,
// but handle single precision as well.
static void
ReadMat(vnl_matlab_readhdr &mathdr,
Array<double> &array)
{
if(mathdr.is_single())
{
vnl_vector<float> fv(mathdr.rows());
mathdr.read_data(fv.begin());
for(int i = 0; i < mathdr.rows(); i++)
{
array[i] = fv[i];
}
}
else
{
mathdr.read_data(array.begin());
}
}
void
MatlabTransformIO::
Read()
{
std::ifstream matfile(this->GetFileName(),
std::ios::in|std::ios::binary);
if(matfile.fail())
{
matfile.close();
itkExceptionMacro("The file could not be opened for read access "
<< std::endl << "Filename: \"" << this->GetFileName() << "\"");
}
while(!matfile.eof())
{
vnl_matlab_readhdr mathdr(matfile);
if(! mathdr )
{
break;
}
if(mathdr.cols() != 1)
{
matfile.close();
itkExceptionMacro
("Only vector parameters supported");
}
Array<double> TmpParameterArray(mathdr.rows());
ReadMat(mathdr,TmpParameterArray);
std::string classname(mathdr.name());
// create transform based on name of first vector
TransformPointer transform;
this->CreateTransform(transform,classname);
this->GetReadTransformList().push_back(transform);
vnl_matlab_readhdr mathdr2(matfile);
if(mathdr2.cols() != 1)
{
matfile.close();
itkExceptionMacro
("Only vector parameters supported");
}
Array<double> TmpFixedParameterArray(mathdr2.rows());
ReadMat(mathdr2,TmpFixedParameterArray);
transform->SetFixedParameters(TmpFixedParameterArray);
transform->SetParametersByValue(TmpParameterArray);
}
matfile.close();
}
void
MatlabTransformIO::
Write()
{
ConstTransformListType::iterator it = this->GetWriteTransformList().begin();
vnl_vector<double> TempArray;
std::ofstream out;
this->OpenStream(out,true);
while(it != this->GetWriteTransformList().end())
{
std::string xfrmType((*it)->GetTransformTypeAsString());
TempArray = (*it)->GetParameters();
vnl_matlab_write(out,TempArray.begin(),TempArray.size(),xfrmType.c_str());
TempArray = (*it)->GetFixedParameters();
vnl_matlab_write(out,TempArray.begin(),TempArray.size(),"fixed");
it++;
}
out.close();
}
}
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