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/*===========================================================================
Copyright (C) 2007-2020 Yves Renard, Julien Pommier.
This file is a part of GetFEM
GetFEM is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version along with the GCC Runtime Library
Exception either version 3.1 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 Lesser General Public
License and GCC Runtime Library Exception for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
===========================================================================*/
#include "getfem/bgeot_comma_init.h"
#include "getfem/bgeot_comma_init.h"
#include "getfem/getfem_mesh_slice.h"
using std::endl; using std::cout; using std::cerr;
using std::ends; using std::cin;
using getfem::size_type;
namespace getfem {
std::ostream& operator<<(std::ostream& o, const bgeot::mesh_structure& m) {
o << "mesh_structure: nb_pts=" << m.nb_max_points() << ", nb_cvs="
<< m.convex_index().card() << endl;
dal::bit_vector bv = m.convex_index();
for (size_type cv = bv.take_first(); cv != size_type(-1); cv << bv) {
o << "convex " << cv << ": ";
std::copy(m.ind_points_of_convex(cv).begin(), m.ind_points_of_convex(cv).end(), std::ostream_iterator<size_type>(o, ","));
o << endl;
}
return o;
}
#if 0
std::ostream& operator<<(std::ostream& o, const mesh_slice& m) {
std::vector<size_type> e;
o << "mesh_slice, containing " << m.nb_convex() << " convexes\n";
for (size_type ic = 0; ic < m.nb_convex(); ++ic) {
o << "slice convex #" << ic << " (original = " << m.convex_num(ic) << ")\n";
for (size_type i = 0; i < m.nodes(ic).size(); ++i) {
o << "node " << i << ": " << m.nodes(ic)[i].pt << ", ref=" << m.nodes(ic)[i].pt_ref << " flist=" << m.nodes(ic)[i].faces << endl;
}
for (size_type i = 0; i < m.simplexes(ic).size(); ++i) {
o << "simplex " << i << ", inodes=";
for (size_type j=0;j< m.simplexes(ic)[i].dim()+1;++j)
o << m.simplexes(ic)[i].inodes[j] << " ";
o << endl;
}
/*m.edges(ic,e);
o << "edges: "; for (size_type i=0; i < e.size()/2; ++i) o << e[2*i] << "-" << e[2*i+1] << " ";
o << endl;
*/
}
return o;
}
#endif
}
int
main() {
FE_ENABLE_EXCEPT; // Enable floating point exception for Nan.
getfem::mesh m;
getfem::base_node A{0,0};
getfem::base_node B{1,0};
getfem::base_node C{0,2};
getfem::base_node D{1,1};
m.add_triangle_by_points(A,B,C);
m.add_triangle_by_points(B,C,D);
getfem::base_node x0{.4,0};
getfem::base_node n0{1,0};
getfem::base_node x1{0,0.1};
getfem::base_node n1{1,-1};
getfem::mesh_region cvlst;
cvlst.add(0);
cvlst.add(1);
cout << "ok\n";
getfem::stored_mesh_slice sl; sl.build(m, getfem::slicer_half_space(x0,n0,false), 10);
cout << sl << endl;
cout << "memory 0: " << sl.memsize() << " bytes\n";
{
sl.write_to_file("test_slice.sl", true);
}
sl.clear();
{std::fstream f("test_slice.sl", std::ios::in);
sl.read_from_file(f, m);
}
{std::fstream f("test_slice2.sl", std::ios::out);
sl.write_to_file(f);
}
sl.clear();
getfem::slicer_half_space slh1(x1,n1,false);
getfem::mesh_slicer ms1(m);
ms1.push_back_action(slh1);
getfem::slicer_build_stored_mesh_slice slb(sl);
ms1.push_back_action(slb);
ms1.exec(10,cvlst);
cout << sl << endl;
cout << "memory 1: " << sl.memsize() << " bytes\n";
return 0;
}
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