X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?p=mtp.git;a=blobdiff_plain;f=mtp_graph.h;h=b07e4618c62e44dd9c120ad261667e282898c71d;hp=ae0003ae8db2153b2a716cc5de638b1f43cbedf9;hb=90a6bc97162d199e3b840bf178f49854e5df91fa;hpb=6afe91234d7807ce82b96a071087decb2f7aead3
diff --git a/mtp_graph.h b/mtp_graph.h
index ae0003a..b07e461 100644
--- a/mtp_graph.h
+++ b/mtp_graph.h
@@ -1,20 +1,26 @@
-///////////////////////////////////////////////////////////////////////////
-// This program is free software: you can redistribute it and/or modify //
-// it under the terms of the version 3 of the GNU General Public License //
-// as published by the Free Software Foundation. //
-// //
-// 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 //
-// General Public License for more details. //
-// //
-// You should have received a copy of the GNU General Public License //
-// along with this program. If not, see . //
-// //
-// Written by and Copyright (C) Francois Fleuret //
-// Contact for comments & bug reports //
-///////////////////////////////////////////////////////////////////////////
+/*
+ * mtp is the ``Multi Tracked Paths'', an implementation of the
+ * k-shortest paths algorithm for multi-target tracking.
+ *
+ * Copyright (c) 2012 Idiap Research Institute, http://www.idiap.ch/
+ * Written by Francois Fleuret
+ *
+ * This file is part of mtp.
+ *
+ * mtp is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * mtp 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 General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with selector. If not, see .
+ *
+ */
#ifndef MTP_GRAPH_H
#define MTP_GRAPH_H
@@ -32,13 +38,19 @@ class Edge;
class MTPGraph {
void update_positivized_lengths();
+ // It may happen that numerical errors in update_positivized_lengths
+ // make the resulting lengths negative, albeit very small. The
+ // following method force such length to zero, and print the
+ // correction when compiled in VERBOSE mode.
void force_positivized_lengths();
// Set the edge pred_edge_toward_source correspondingly to the path
- // of shortest length.
+ // of shortest length. The current implementation is not Dijkstra's!
void find_shortest_path();
// Follows the path starting on edge e and returns its length. If
// nodes is non-null, stores in it the nodes met along the path.
int retrieve_one_path(Edge *e, Path *path);
+ // Returns if the graph is a DAG
+ int is_dag();
Vertex **_front, **_new_front;
@@ -54,7 +66,7 @@ public:
int nb_paths;
Path **paths;
- MTPGraph(int nb_vertices, int nb_edges, int *from, int *to,
+ MTPGraph(int nb_vertices, int nb_edges, int *vertex_from, int *vertex_to,
int source, int sink);
~MTPGraph();