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| author | Marc Jeanmougin <marc.jeanmougin@telecom-paristech.fr> | 2018-04-29 14:25:32 +0000 |
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| committer | Marc Jeanmougin <marc.jeanmougin@telecom-paristech.fr> | 2018-04-29 14:25:32 +0000 |
| commit | ab5f8ff5869021958f4ae8b838c3d707a2e85eaa (patch) | |
| tree | 4907675828a5401d013b7587538cc8541edd2764 /src/libcola/tests/large_graph.cpp | |
| parent | moved libcroco, libuemf, libdepixelize to 3rdparty folder (diff) | |
| download | inkscape-ab5f8ff5869021958f4ae8b838c3d707a2e85eaa.tar.gz inkscape-ab5f8ff5869021958f4ae8b838c3d707a2e85eaa.zip | |
Put adaptagrams into its own folder
Diffstat (limited to 'src/libcola/tests/large_graph.cpp')
| -rw-r--r-- | src/libcola/tests/large_graph.cpp | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/src/libcola/tests/large_graph.cpp b/src/libcola/tests/large_graph.cpp deleted file mode 100644 index 712bd692c..000000000 --- a/src/libcola/tests/large_graph.cpp +++ /dev/null @@ -1,144 +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 - * -*/ - -// Loads a graph from a text file, generates constraints for each edge requiring them -// to point downwards, and proceeds to produce a layout using libcola. -// The input file format is 2 numeric node labels per line separated by a space, -// each pair representing a directed edge. Node labels are simply used as array -// offsets so they should start from 0. -// The graph should be connected. -// Default input file is the matrix market 1138_bus graph. -// Running times: -// no constraints - steepest descent solver: 149 seconds -// no constraints - mosek: 49.47 seconds -// no constraints - conjugate gradient solver: 12.2 seconds -// dir-edge constraints - mosek: 214.2 seconds -// -// V=1138 -#include<iostream> -#include<iomanip> -#include<fstream> -#include<vector> -#include<valarray> -#include <libvpsc/linesegment.h> -#include "graphlayouttest.h" - -using namespace std; -using namespace cola; - -int countCrossings(vpsc::Rectangles& rs, vector<cola::Edge>& es) { - int crossings=0; - for(unsigned i=0;i<es.size()-1;++i) { - for(unsigned j=i+1;j<es.size();++j) { - Edge e1=es[i], e2=es[j]; - Rectangle *e1a=rs[e1.first], - *e1b=rs[e1.second], - *e2a=rs[e2.first], - *e2b=rs[e2.second]; - linesegment::LineSegment s1( - linesegment::Vector(e1a->getCentreX(),e1a->getCentreY()), - linesegment::Vector(e1b->getCentreX(),e1b->getCentreY())); - linesegment::LineSegment s2( - linesegment::Vector(e2a->getCentreX(),e2a->getCentreY()), - linesegment::Vector(e2b->getCentreX(),e2b->getCentreY())); - linesegment::Vector point; - if(s1.Intersect(s2,point)==linesegment::LineSegment::INTERSECTING) { - ++crossings; - } - } - } - return crossings; -} -int main() { - const char *fname="data/1138_bus.txt"; //"data/dg_850.txt"; - ifstream f(fname); - if(!f.is_open()) { - cout << "Error opening file: " << fname << endl; - exit(1); - } - string startlabel, endlabel; - unsigned V = 0; - double defaultEdgeLength=40; - vector<Edge> es; - CompoundConstraints cx,cy; - while(!getline(f,startlabel,' ').eof()) { - getline(f,endlabel); - unsigned start = atoi(startlabel.c_str()), - end = atoi(endlabel.c_str()); - es.push_back(make_pair(start,end)); - cy.push_back( - new SeparationConstraint(end,start,defaultEdgeLength/3)); - V=max(V,max(start,end)); - } - V++; - /* - DFS::Graph dfs(V,es); - for(unsigned i=1;i<dfs.order.size();i++) { - cx.push_back( - new SeparationConstraint(dfs.order[i-1],dfs.order[i],0)); - } - */ - cout << "V="<<V<<endl; - double width=1000; - double height=1000; - vector<pair<double,double> > startpos(V); - //srand(time(NULL)); - for(unsigned i=0;i<V;i++) { - double x=getRand(width), y=getRand(height); - startpos[i]=make_pair(x,y); - } - //const char *testname="large_graph"; - //run_test(startpos,es,defaultEdgeLength,cx,cy,CG,false,testname,"cg"); - //run_test(startpos,es,defaultEdgeLength,cx,cy,IP,false,testname,"ip"); - //run_test(startpos,es,defaultEdgeLength,cx,cy,UGP,false,testname,"ugp"); - //run_test(startpos,es,defaultEdgeLength,cx,cy,SGP,false,testname,"sgp"); - //run_test(startpos,es,defaultEdgeLength,cx,cy,IP,true,testname,"cip"); - //run_test(startpos,es,defaultEdgeLength,cx,cy,UGP,true,testname,"cugp"); - //run_test(startpos,es,defaultEdgeLength,cx,cy,SGP,true,testname,"csgp"); - vector<vpsc::Rectangle*> rs; - for(unsigned i=0;i<V;i++) { - double x=getRand(width), y=getRand(height); - rs.push_back(new vpsc::Rectangle(x,x+5,y,y+5)); - } - cout<<"Initial crossings="<<countCrossings(rs,es)<<endl; - CheckProgress test(0.0001,200); - ConstrainedMajorizationLayout alg(rs,es,NULL,defaultEdgeLength,NULL,test); - alg.setYConstraints(&cy); - alg.run(); - cout<<"Majorization crossings="<<countCrossings(rs,es)<<endl; - OutputFile output1(rs,es,NULL,"large_graph-majorization.pdf"); - output1.generate(); - ConstrainedFDLayout alg2(rs,es,defaultEdgeLength,NULL,test); - alg2.setYConstraints(&cy); - alg2.run(); - cout<<"PStress crossings="<<countCrossings(rs,es)<<endl; - OutputFile output(rs,es,NULL,"large_graph.pdf"); - output.generate(); - for(unsigned i=0;i<V;i++) { - delete rs[i]; - } - return 0; -} -// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=4:softtabstop=4:textwidth=99 : |
