mirror of https://github.com/CGAL/cgal
80 lines
2.1 KiB
C++
80 lines
2.1 KiB
C++
#ifndef CGAL_LLOYD_OPTIMIZE_MESH_2_H
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#define CGAL_LLOYD_OPTIMIZE_MESH_2_H
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#include <CGAL/Mesh_2/Mesh_global_optimizer_2.h>
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#include <CGAL/Mesh_2/Lloyd_move_2.h>
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#include <CGAL/Mesh_2/Mesh_sizing_field.h>
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#include <fstream>
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#include <boost/parameter.hpp>
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#include <boost/parameter/name.hpp>
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BOOST_PARAMETER_NAME( cdt )
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BOOST_PARAMETER_NAME( (max_iteration_number, tag) max_iteration_number_ )
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BOOST_PARAMETER_NAME( (convergence, tag) convergence_)
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BOOST_PARAMETER_NAME( (time_limit, tag) time_limit_ )
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BOOST_PARAMETER_NAME( (freeze_bound, tag) freeze_bound_)
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namespace CGAL
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{
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BOOST_PARAMETER_FUNCTION(
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(void),
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lloyd_optimize_mesh_2,
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tag,
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(required (in_out(cdt),*))
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(optional
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(max_iteration_number_, *, 0 )
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(convergence_, *, 0.001 )
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(time_limit_, *, 0. )
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(freeze_bound_, *, 0.001 )
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)
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)
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{
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return lloyd_optimize_mesh_2_impl(cdt,
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max_iteration_number_,
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convergence_,
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freeze_bound_,
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time_limit_);
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}
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template<typename CDT>
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void lloyd_optimize_mesh_2_impl(CDT& cdt,
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const unsigned int max_iterations,
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const double convergence_ratio,
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const double freeze_bound,
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const double time_limit)
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{
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typedef Mesh_2::Mesh_sizing_field<CDT> Sizing;
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typedef Mesh_2::Lloyd_move_2<CDT, Sizing> Mv;
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typedef Mesh_2::Mesh_global_optimizer_2<CDT, Mv> Optimizer;
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Optimizer lloyd(cdt,
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convergence_ratio,
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freeze_bound);
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lloyd.set_time_limit(time_limit);
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#ifdef CGAL_MESH_2_OPTIMIZERS_DEBUG
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std::ofstream os("before_lloyd.angles.txt");
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lloyd.output_angles_histogram(os);
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os.close();
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#endif
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// 1000 iteration max to avoid infinite loop
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int nb_iterations = (0 == max_iterations)
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? 1000
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: max_iterations;
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//run optimization
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lloyd(nb_iterations);
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#ifdef CGAL_MESH_2_OPTIMIZERS_DEBUG
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std::ofstream os2("after_lloyd.angles.txt");
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lloyd.output_angles_histogram(os2);
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os2.close();
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#endif
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}
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} //end namespace CGAL
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#endif
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