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draw/line.cc
1 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE)
2 //
3 // This file is part of Olena.
4 //
5 // Olena is free software: you can redistribute it and/or modify it under
6 // the terms of the GNU General Public License as published by the Free
7 // Software Foundation, version 2 of the License.
8 //
9 // Olena is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
16 //
17 // As a special exception, you may use this file as part of a free
18 // software project without restriction. Specifically, if other files
19 // instantiate templates or use macros or inline functions from this
20 // file, or you compile this file and link it with other files to produce
21 // an executable, this file does not by itself cause the resulting
22 // executable to be covered by the GNU General Public License. This
23 // exception does not however invalidate any other reasons why the
24 // executable file might be covered by the GNU General Public License.
25 
26 #include <iterator>
27 
28 #include <mln/core/image/image2d.hh>
29 #include <mln/core/image/dmorph/sub_image.hh>
30 
31 
32 #include <mln/data/fill.hh>
33 #include <mln/data/compare.hh>
34 #include <mln/draw/line.hh>
35 #include <mln/debug/println.hh>
36 
37 
38 int main()
39 {
40  using namespace mln;
41 
42  point2d b = point2d(0,0), e = point2d(6,9);
43  p_line2d l(b, e);
44  mln_assertion(l.nsites() == 10);
45 
46  image2d<bool> ima(10,10);
47  data::fill(ima, false);
48  draw::line(ima, b, e, true);
49 
50  image2d<bool> ima2(10,10);
51  data::fill(ima2, false);
52  data::paste(pw::cst(true) | l, ima2);
53 
54  mln_assertion(ima2 == ima);
55 
56  image2d<bool> ima3(10,10);
57  data::fill(ima3, false);
58  data::fill((ima3 | l).rw(), true);
59 
60  mln_assertion(ima3 == ima);
61 }