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region_adjacency_graph.cc

00001 // Copyright (C) 2009 EPITA Research and Development Laboratory (LRDE)
00002 //
00003 // This file is part of Olena.
00004 //
00005 // Olena is free software: you can redistribute it and/or modify it under
00006 // the terms of the GNU General Public License as published by the Free
00007 // Software Foundation, version 2 of the License.
00008 //
00009 // Olena is distributed in the hope that it will be useful,
00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012 // General Public License for more details.
00013 //
00014 // You should have received a copy of the GNU General Public License
00015 // along with Olena.  If not, see <http://www.gnu.org/licenses/>.
00016 //
00017 // As a special exception, you may use this file as part of a free
00018 // software project without restriction.  Specifically, if other files
00019 // instantiate templates or use macros or inline functions from this
00020 // file, or you compile this file and link it with other files to produce
00021 // an executable, this file does not by itself cause the resulting
00022 // executable to be covered by the GNU General Public License.  This
00023 // exception does not however invalidate any other reasons why the
00024 // executable file might be covered by the GNU General Public License.
00025 
00026 #include <mln/core/alias/neighb2d.hh>
00027 
00028 #include <mln/util/graph.hh>
00029 
00030 #include <mln/value/label_8.hh>
00031 
00032 #include <mln/make/image2d.hh>
00033 #include <mln/make/region_adjacency_graph.hh>
00034 
00035 int main()
00036 {
00037   using namespace mln;
00038 
00039   value::label_8 vals[16] = { 1, 0, 3, 3,
00040                               1, 0, 0, 0,
00041                               0, 0, 4, 4,
00042                               2, 2, 0, 4 };
00043 
00044   image2d<value::label_8> ima = make::image2d(vals);
00045 
00046   util::graph g = make::region_adjacency_graph(ima, c4(), 4u);
00047 
00048   mln_assertion(g.e_nmax() == 4u);
00049   mln_assertion(g.v_nmax() == 5u);
00050   mln_assertion(g.v_nmax_nbh_edges(0) == 0);
00051   for (unsigned i = 1; i < 4; ++i)
00052     mln_assertion(g.v_nmax_nbh_edges(i) == 2);
00053 }

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