* apps/mesh-segm-skel/mesh-segm.cc: Catch up with the new interface of graphs. Use mln::edge_image instead of mln::line_graph_image. Turn a test into an invariant. Use mln::morpho::watershed::flooding instead of mln::morpho::meyer_wst. * apps/mesh-segm-skel/Makefile.am (bin_PROGRAMS): Re-enable mesg-segm. (mesh_segm_SOURCES, mesh_segm_CPPFLAGS) (mesh_segm_LDFLAGS, mesh_segm_LDADD): Re-enable. (TESTS): Reenable test-mesh-segm. (CLEANFILES): Reenable socket-segm.off and teapot-segm.off. --- milena/ChangeLog | 18 +++++ milena/apps/mesh-segm-skel/Makefile.am | 28 +++++---- milena/apps/mesh-segm-skel/mesh-segm.cc | 110 +++++++++++++++++++------------ 3 files changed, 103 insertions(+), 53 deletions(-) diff --git a/milena/ChangeLog b/milena/ChangeLog index c2f04e9..f112bea 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,3 +1,21 @@ +2010-05-11 Roland Levillain <roland@lrde.epita.fr> + + Revive, fix and update application mesh-segm. + + * apps/mesh-segm-skel/mesh-segm.cc: Catch up with the new + interface of graphs. + Use mln::edge_image instead of mln::line_graph_image. + Turn a test into an invariant. + Use mln::morpho::watershed::flooding instead of + mln::morpho::meyer_wst. + * apps/mesh-segm-skel/Makefile.am (bin_PROGRAMS): + Re-enable mesg-segm. + (mesh_segm_SOURCES, mesh_segm_CPPFLAGS) + (mesh_segm_LDFLAGS, mesh_segm_LDADD): + Re-enable. + (TESTS): Reenable test-mesh-segm. + (CLEANFILES): Reenable socket-segm.off and teapot-segm.off. + 2010-05-10 Roland Levillain <roland@lrde.epita.fr> Fix a bug in the reimplementation of Trimesh algorithms. diff --git a/milena/apps/mesh-segm-skel/Makefile.am b/milena/apps/mesh-segm-skel/Makefile.am index 5852011..aa71ef3 100644 --- a/milena/apps/mesh-segm-skel/Makefile.am +++ b/milena/apps/mesh-segm-skel/Makefile.am @@ -1,4 +1,5 @@ -# Copyright (C) 2008, 2009 EPITA Research and Development Laboratory (LRDE). +# Copyright (C) 2008, 2009, 2010 EPITA Research and Development +# Laboratory (LRDE). # # This file is part of Olena. # @@ -49,19 +50,22 @@ CLEANFILES = ## ------------------------------------------------ ## if ENABLE_TRIMESH -# bin_PROGRAMS += mesh-segm mesh-skel -# -# mesh_segm_SOURCES = mesh-segm.cc io.hh -# mesh_segm_CPPFLAGS = $(AM_CPPFLAGS) $(CPPFLAGS_trimesh) -# mesh_segm_LDFLAGS = $(LDFLAGS_trimesh) -# mesh_segm_LDADD = $(LDADD_trimesh) -# -# TESTS += test-mesh-segm -# CLEANFILES += socket-segm.off teapot-segm.off - -# FIXME: mesh_skel is unfinished. Anyway, it should be superseded by -# another program, using no Trimesh code. - +## FIXME: Rename as mesh-trimesh-graph-{max,pinv}-curv-segm? +bin_PROGRAMS += mesh-segm +mesh_segm_SOURCES = mesh-segm.cc io.hh +mesh_segm_CPPFLAGS = $(AM_CPPFLAGS) $(CPPFLAGS_trimesh) +mesh_segm_LDFLAGS = $(LDFLAGS_trimesh) +mesh_segm_LDADD = $(LDADD_trimesh) + +TESTS += test-mesh-segm +# FIXME: Likewise. +CLEANFILES += socket-segm.off teapot-segm.off + +# FIXME: mesh_skel is unfinished. Anyway, it has been be superseded +# by `mesh-complex-skel' (see below), using no Trimesh code. + +## FIXME: Rename as mesh-trimesh-graph-{max,pinv}-curv-skel? +# bin_PROGRAMS += mesh-skel # mesh_skel_SOURCES = mesh-skel.cc io.hh # mesh_skel_CPPFLAGS = $(AM_CPPFLAGS) $(CPPFLAGS_trimesh) # mesh_skel_LDFLAGS = $(LDFLAGS_trimesh) diff --git a/milena/apps/mesh-segm-skel/mesh-segm.cc b/milena/apps/mesh-segm-skel/mesh-segm.cc index bf87249..06ddc93 100644 --- a/milena/apps/mesh-segm-skel/mesh-segm.cc +++ b/milena/apps/mesh-segm-skel/mesh-segm.cc @@ -1,4 +1,5 @@ -// Copyright (C) 2008, 2009 EPITA Research and Development Laboratory (LRDE) +// Copyright (C) 2008, 2009, 2010 EPITA Research and Development +// Laboratory (LRDE) // // This file is part of the Milena Library. This library is free // software; you can redistribute it and/or modify it under the terms @@ -40,14 +41,18 @@ #include <TriMesh.h> #include <mln/core/alias/point3d.hh> -#include <mln/core/alias/point3d.hh> + +#include <mln/fun/i2v/array.hh> +#include <mln/convert/from_to.hh> #include <mln/util/graph.hh> -#include <mln/core/image/line_graph_image.hh> -#include <mln/core/image/line_graph_elt_neighborhood.hh> +#include <mln/util/line_graph.hh> +#include <mln/util/site_pair.hh> +#include <mln/core/image/edge_image.hh> +#include <mln/make/edge_image.hh> #include <mln/morpho/closing/area.hh> -#include <mln/morpho/meyer_wst.hh> +#include <mln/morpho/watershed/flooding.hh> #include "io.hh" @@ -116,12 +121,9 @@ int main(int argc, char* argv[]) std::vector<curv_t> vertex_values (mesh.faces.size(), 0.f); std::vector<curv_t> edge_values; - /* FIXME: We don't have the required site type yet. Simulate with a - dummy type (point3d). */ - mln::util::graph<mln::point3d> g; + mln::util::graph g; // Populate the graph with vertices. - for (unsigned i = 0; i < mesh.faces.size(); ++i) - g.add_vertex (mln::point3d(i, i, i)); + g.add_vertices(mesh.faces.size()); // Populate the graph with edges. mesh.need_across_edge(); @@ -132,25 +134,26 @@ int main(int argc, char* argv[]) if (f_adj != -1) { // Add an edge into the graph. - if (g.add_edge(f, f_adj) != mln_max(mln::util::edge_id::equiv)) - { - // Find the edge (i.e., the two vertices) common to faces - // F and F_ADJ. - /* FIXME: We lack a proper interface from the TriMesh - structure to do this elegantly. */ - std::vector<int> adj_vertices; - adj_vertices.reserve(2); - for (unsigned i = 0; i < 3; ++i) - for (unsigned j = 0; j < 3; ++j) - if (mesh.faces[f][i] == mesh.faces[f_adj][j]) - adj_vertices.push_back(mesh.faces[f][i]); - mln_assertion(adj_vertices.size() == 2); - - // Compute the mean curvature on the edge. - edge_values.push_back((vertex_h_inv[adj_vertices[0]] + - vertex_h_inv[adj_vertices[1]]) - / 2); - } + mln::util::edge_id_t new_edge = g.add_edge(f, f_adj); + mln_invariant(new_edge.is_valid()); + + /* Among the edges adjacent to F and F_ADJ, find the one + they share. In practice, find the two vertices shared + by F and F_ADJ. */ + /* FIXME: We lack a proper interface from the TriMesh + structure to do this elegantly. */ + std::vector<int> adj_vertices; + adj_vertices.reserve(2); + for (unsigned i = 0; i < 3; ++i) + for (unsigned j = 0; j < 3; ++j) + if (mesh.faces[f][i] == mesh.faces[f_adj][j]) + adj_vertices.push_back(mesh.faces[f][i]); + mln_assertion(adj_vertices.size() == 2); + + // Compute the mean curvature on the edge. + edge_values.push_back((vertex_h_inv[adj_vertices[0]] + + vertex_h_inv[adj_vertices[1]]) + / 2); // Check the consistency of the two arrays. mln_assertion(g.edges().size() == edge_values.size()); @@ -161,19 +164,38 @@ int main(int argc, char* argv[]) | Line graph image. | `-------------------*/ - mln::p_line_graph<mln::point3d> plg(g); + // Points associated to the line graph vertices (edges in the graph). + typedef mln::util::site_pair<mln::point3df> P; + typedef mln::fun::i2v::array<P> fsite_t; + fsite_t sites(g.e_nmax()); + for (unsigned i = 0; i < g.e_nmax(); ++i) + /* FIXME: Add a dummy location information for the moment. This + doesn't really matter as we won't use it to produce the output. + However, we may need it later: do not forget to add relevant + locations (obtained from the mesh) in a future version of this + program. */ + sites(i) = P(mln::point3df(0, 0, 0), mln::point3df(1, 1, 1)); + + // FIXME: This intermediate structure costs us a copy. + typedef mln::fun::i2v::array<curv_t> values_t; + values_t values; + mln::convert::from_to(edge_values, values); + + typedef mln::edge_image<P, curv_t, mln::util::graph> ima_t; + ima_t graph_ima(g, sites, values); - typedef mln::line_graph_image<mln::point3d, curv_t> ima_t; - ima_t lg_ima(plg, vertex_values, edge_values); /*-----------------. | Simplification. | `-----------------*/ - typedef mln::line_graph_elt_neighborhood<mln::point3d> nbh_t; + typedef ima_t::nbh_t nbh_t; nbh_t nbh; - ima_t closed_lg_ima = mln::morpho::closing::area(lg_ima, nbh, lambda); + // ``Area'' is not a proper term here, since it is defined to the + // number of edges in the graph. Taking into account the actual + // area of triangles would be a more clever choice. + ima_t closed_graph_ima = mln::morpho::closing::area(graph_ima, nbh, lambda); /*------. | WST. | @@ -181,24 +203,30 @@ int main(int argc, char* argv[]) typedef unsigned wst_val_t; wst_val_t nbasins; - typedef mln::line_graph_image<mln::point3d, wst_val_t> wst_ima_t; - wst_ima_t wshed = mln::morpho::meyer_wst(closed_lg_ima, nbh, nbasins); + typedef mln_ch_value_(ima_t, wst_val_t) wst_ima_t; + wst_ima_t wshed = + mln::morpho::watershed::flooding(closed_graph_ima, nbh, nbasins); std::cout << "nbasins = " << nbasins << std::endl; /*------------------------------------------. | Label graph vertices (i.e., mesh faces). | `------------------------------------------*/ - /* FIXME: We should be using wshed.vertex_values_ if - mln::line_graph_image were fully functional... */ - std::vector<unsigned> vertex_label(wshed.domain().nvertices(), 0); + // FIXME: Use a vertex_image and a e2v neighborhood instead? + + /* FIXME: p_edges does not provide nvertices(), so we cannot write + + std::vector<unsigned> vertex_label(wshed.domain().nvertices(), 0); + + Likewise, p_vertices does not provide n_edges(). */ + std::vector<unsigned> vertex_label(wshed.domain().graph().v_nmax(), 0); mln_piter_(wst_ima_t) pw(wshed.domain()); for_all(pw) if (wshed(pw) != 0) { mln_psite_(wst_ima_t) pp(pw); - vertex_label[pp.first_id().to_equiv()] = wshed(pw); - vertex_label[pp.second_id().to_equiv()] = wshed(pw); + vertex_label[pp.v1().id()] = wshed(pw); + vertex_label[pp.v2().id()] = wshed(pw); } /*---------. -- 1.5.6.5