File: 3dtransform2vf.cc

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/* -*- mia-c++  -*-
 *
 * This file is part of MIA - a toolbox for medical image analysis 
 * Copyright (c) Leipzig, Madrid 1999-2014 Gert Wollny
 *
 * MIA is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with MIA; if not, see <http://www.gnu.org/licenses/>.
 *
 */

#define VSTREAM_DOMAIN "mia-3dtransform"
#include <mia/core/cmdlineparser.hh>
#include <mia/3d/transformio.hh>
#include <mia/3d/vfio.hh>
#include <mia/internal/main.hh>


NS_MIA_USE
using namespace std;

const SProgramDescription g_description = {
	{pdi_group, "Registration, Comparison, and Transformation of 3D images"}, 
	{pdi_short, "Create Vectorfield from a transformation."}, 
	{pdi_description, "Create a 3D vector field from a given transformation. The output vector field will "
	 "have the dimesions as given in the transformation description."}, 
	{pdi_example_descr, "Transform the input transformation trans.v3df to a vector field field.vtk."}, 
	{pdi_example_code, "-i trans.v3df   -o field.vtk"}
	
}; 

int do_main(int argc, char **argv)
{
	CCmdOptionList options(g_description);

	string src_filename;
	string out_filename;


	options.add(make_opt( src_filename, "in-file", 'i', "input transformation ", 
			      CCmdOptionFlags::required_input, &C3DTransformationIOPluginHandler::instance()));
	options.add(make_opt( out_filename, "out-file", 'o', "output vector field ", 
			      CCmdOptionFlags::required_output, &C3DVFIOPluginHandler::instance()));

	if (options.parse(argc, argv) != CCmdOptionList::hr_no)
		return EXIT_SUCCESS; 
	

	auto transformation = C3DTransformationIOPluginHandler::instance().load(src_filename);

	C3DIOVectorfield outfield(transformation->get_size());

	cvdebug() << transformation->get_size() << "\n"; 
	auto it = transformation->begin(); 
	auto et = transformation->end(); 
	auto ivf = outfield.begin_range(C3DBounds::_0, transformation->get_size()); 
	
	while (it != et) {
		*ivf = C3DFVector(ivf.pos()) - *it; 
		cvdebug() << *ivf << "\n"; 
		++it; 
		++ivf; 
	}

	if (!C3DVFIOPluginHandler::instance().save(out_filename, outfield)){
		cerr << "Unable to save result vector field to " << out_filename << "\n";
		return EXIT_FAILURE;
	}
	return EXIT_SUCCESS;	
}

MIA_MAIN(do_main);