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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/small_graph.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/small_graph.cpp')
-rw-r--r--src/libcola/tests/small_graph.cpp111
1 files changed, 0 insertions, 111 deletions
diff --git a/src/libcola/tests/small_graph.cpp b/src/libcola/tests/small_graph.cpp
deleted file mode 100644
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--- a/src/libcola/tests/small_graph.cpp
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-/*
- * 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 - conjugate gradient solver: 21.7 seconds
-// dir-edge constraints - conj grad. solver: 155.69 seconds
-#include<iostream>
-#include<iomanip>
-#include<fstream>
-#include<vector>
-#include<valarray>
-#include<libcola/output_svg.h>
-#include<graphlayouttest.h>
-
-using namespace std;
-using namespace cola;
-
-struct CheckProgress : TestConvergence {
- CheckProgress(const double d,const unsigned i) : TestConvergence(d,i) {}
- bool operator()(const double new_stress, valarray<double> & X, valarray<double> & Y) {
- cout << "stress="<<new_stress<<endl;
- return TestConvergence::operator()(new_stress,X,Y);
- }
-};
-int main() {
- const char *fname="data/wheel.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 cy;
- //CompoundConstraints cx;
- 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));
- //cx.push_back(
- //new SeparationConstraint(start,end,defaultEdgeLength/3));
- cy.push_back(
- new SeparationConstraint(start,end,defaultEdgeLength/3));
- V=max(V,max(start,end));
- }
- V++;
- cout << "V="<<V<<endl;
- double width=1000;
- double height=1000;
- vector<vpsc::Rectangle*> rs;
- //srand(time(NULL));
- for(unsigned i=0;i<V;i++) {
- double x=getRand(width), y=getRand(height);
- rs.push_back(new vpsc::Rectangle(x,x+1,y,y+1));
- }
- CheckProgress test(0.001,100);
- clock_t starttime=clock();
- ConstrainedMajorizationLayout alg(rs,es,NULL,defaultEdgeLength,NULL,test);
- bool constrained=false;
- if(!constrained) {
- cout << "Unconstrained layout" << endl;
- alg.setConstrainedLayout(true);
- alg.run();
- } else {
- cout << "Constrained layout" << endl;
- //alg.setXConstraints(&cx);
- alg.setYConstraints(&cy);
- alg.run();
- }
- double t=double(clock()-starttime)/double(CLOCKS_PER_SEC);
- cout<<"Time="<<t<<endl;
- output_svg(rs,es,NULL,"small_graph.svg",true);
- for(unsigned i=0;i<V;i++) {
- delete rs[i];
- }
- return 0;
-}
-// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=4:softtabstop=4:textwidth=99 :