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detach_pair.cc
1 // Copyright (C) 2011 EPITA Research and Development Laboratory (LRDE)
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25 
28 
29 #include <mln/core/alias/complex_image.hh>
30 #include <mln/core/image/complex_neighborhoods.hh>
31 
32 #include <mln/topo/detach_pair.hh>
33 
34 #include <mln/io/vtk/load.hh>
35 #include <mln/io/vtk/save.hh>
36 
37 #include "tests/data.hh"
38 
39 
40 int
41 main()
42 {
43  // Image type.
44  typedef mln::bin_2complex_image3df ima_t;
45  // Dimension of the image (and thus of the complex).
46  static const unsigned D = ima_t::dim;
47  // Geometry of the image.
48  typedef mln_geom_(ima_t) G;
49 
50  ima_t ima;
51  mln::io::vtk::load(ima, MLN_MESH_DIR "/pseudo-manifold.vtk");
52 
53  // Neighborhood type returning the set of (n-1)-faces adjacent to a
54  // an n-face.
55  typedef mln::complex_lower_neighborhood<D, G> lower_adj_nbh_t;
56  lower_adj_nbh_t lower_adj_nbh;
57  // Neighborhood type returning the set of (n+1)-faces adjacent to a
58  // an n-face.
59  typedef mln::complex_higher_neighborhood<D, G> higher_adj_nbh_t;
60  higher_adj_nbh_t higher_adj_nbh;
61  // Functor detaching a simple pair.
62  typedef mln::topo::detach_pair< ima_t,
63  lower_adj_nbh_t,
64  higher_adj_nbh_t > detach_t;
65 
66  // Detach simple 2-faces from IMA.
67  detach_t detach(ima, lower_adj_nbh, higher_adj_nbh);
68  mln::p_n_faces_fwd_piter<D, G> f(ima.domain(), 2);
69  for_all(f)
70  detach(f);
71 
72  mln::io::vtk::save(ima, "detach_pair-out.vtk");
73 }