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authorMarc Jeanmougin <marc.jeanmougin@telecom-paristech.fr>2018-04-29 14:25:32 +0000
committerMarc Jeanmougin <marc.jeanmougin@telecom-paristech.fr>2018-04-29 14:25:32 +0000
commitab5f8ff5869021958f4ae8b838c3d707a2e85eaa (patch)
tree4907675828a5401d013b7587538cc8541edd2764 /src/libcola/tests/shortest_paths.cpp
parentmoved libcroco, libuemf, libdepixelize to 3rdparty folder (diff)
downloadinkscape-ab5f8ff5869021958f4ae8b838c3d707a2e85eaa.tar.gz
inkscape-ab5f8ff5869021958f4ae8b838c3d707a2e85eaa.zip
Put adaptagrams into its own folder
Diffstat (limited to 'src/libcola/tests/shortest_paths.cpp')
-rw-r--r--src/libcola/tests/shortest_paths.cpp140
1 files changed, 0 insertions, 140 deletions
diff --git a/src/libcola/tests/shortest_paths.cpp b/src/libcola/tests/shortest_paths.cpp
deleted file mode 100644
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--- a/src/libcola/tests/shortest_paths.cpp
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@@ -1,140 +0,0 @@
-/*
- * vim: ts=4 sw=4 et tw=0 wm=0
- *
- * libcola - A library providing force-directed network layout using the
- * stress-majorization method subject to separation constraints.
- *
- * Copyright (C) 2006-2008 Monash University
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library in the file LICENSE; if not,
- * write to the Free Software Foundation, Inc., 59 Temple Place,
- * Suite 330, Boston, MA 02111-1307 USA
- *
-*/
-
-#include <fstream>
-#include <iostream>
-#include <iomanip>
-//#define TEST_AGAINST_BOOST
-#ifdef TEST_AGAINST_BOOST
-#include <boost/config.hpp>
-#include <boost/property_map.hpp>
-#include <boost/graph/adjacency_list.hpp>
-#include <boost/graph/graphviz.hpp>
-#include <boost/graph/johnson_all_pairs_shortest.hpp>
-using namespace boost;
-#endif // TEST_AGAINST_BOOST
-#include <libcola/shortest_paths.h>
-#include <cmath>
-#include <time.h>
-#include <assert.h>
-
-using namespace std;
-// creates a (not necessarily connected random graph) with n nodes.
-vector<shortest_paths::Edge> random_graph(unsigned n) {
- vector<shortest_paths::Edge> edges;
- for(unsigned i=0;i<n;i++) {
- for(unsigned j=i+1;j<n;j++) {
- double r=(double)rand()/(double)RAND_MAX;
- if(r < 0.1) {
- edges.push_back(make_pair(i,j));
- }
- }
- }
-
- return edges;
-}
-clock_t lastTime;
-static void resetClock() {
- lastTime=clock();
-}
-static double getRunTime() {
- clock_t time = clock()-lastTime;
- return (double)time/(double)CLOCKS_PER_SEC;
-}
-
-int
-main(void)
-{
- bool dump=false;
- srand(time(0));
-#ifdef TEST_AGAINST_BOOST
- typedef adjacency_list<vecS, vecS, undirectedS, no_property,
- property< edge_weight_t, double, property< edge_weight2_t, double > > > Graph;
- Graph g;
-#endif
- unsigned V = 100;
- vector<shortest_paths::Edge> es = random_graph(V);
- unsigned E=es.size();
- cout << " Test graph |V|="<<V<<",|E|="<<E<<endl;
- valarray<double> weights(E);
- for(unsigned i=0;i<E;i++) {
- weights[i]=round((static_cast<double>(rand())/static_cast<double>(RAND_MAX))*10);
-#ifdef TEST_AGAINST_BOOST
- add_edge(es[i].first,es[i].second,weights[i],g);
-#endif
- }
-
-#ifdef TEST_AGAINST_BOOST
- vector < double >d(V, (numeric_limits < double >::max)());
- typedef vector<double> weight_vec;
- vector<weight_vec> D(V,weight_vec(V));
- cout<<"Running boost::johnson_all_pairs_shortest_paths..."<<endl;
- resetClock();
- johnson_all_pairs_shortest_paths(g, D, distance_map(&d[0]));
- cout<<" ...done, time="<<getRunTime()<<endl;
-#endif
- double** D1=new double*[V];
- for(unsigned i=0;i<V;i++) {
- D1[i]=new double[V];
- }
- cout<<"Running shortest_paths::johnsons..."<<endl;
- resetClock();
- shortest_paths::johnsons(V,D1,es,weights);
- cout<<" ...done, time="<<getRunTime()<<endl;
- double** D2=new double*[V];
- for(unsigned i=0;i<V;i++) {
- D2[i]=new double[V];
- }
- cout<<"Running shortest_paths::floyd_warshall..."<<endl;
- resetClock();
- shortest_paths::floyd_warshall(V,D2,es,weights);
- cout<<" ...done, time="<<getRunTime()<<endl;
-
- for (unsigned int i = 0; i < V; ++i) {
- if(dump) cout << i << " -> ";
- for (unsigned int j = 0; j < V; ++j) {
- if(dump) cout << setw(5) << D1[i][j];
- assert(D1[i][j]==D2[i][j]);
-#ifdef TEST_AGAINST_BOOST
- assert(D[i][j]==D2[i][j]);
-#endif
- }
- if(dump) cout << endl;
- }
-#ifdef TEST_AGAINST_BOOST
- if(dump) {
- ofstream fout("figs/johnson-eg.dot");
- fout << "graph A {\n" << "node[shape=\"circle\"]\n";
-
- graph_traits < Graph >::edge_iterator ei, ei_end;
- for (tie(ei, ei_end) = edges(g); ei != ei_end; ++ei)
- fout << source(*ei, g) << " -- " << target(*ei, g)
- << "[label=" << get(edge_weight, g)[*ei] << "]\n";
-
- fout << "}\n";
- }
-#endif
- return 0;
-}