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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
commit | cca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch) | |
tree | 146f39ded1c938019e1ed42d30923c2ac9e86789 /src/3rdparty/adaptagrams/libcola/tests/random_graph.cpp | |
parent | Initial commit. (diff) | |
download | inkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.tar.xz inkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.zip |
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/3rdparty/adaptagrams/libcola/tests/random_graph.cpp')
-rw-r--r-- | src/3rdparty/adaptagrams/libcola/tests/random_graph.cpp | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/src/3rdparty/adaptagrams/libcola/tests/random_graph.cpp b/src/3rdparty/adaptagrams/libcola/tests/random_graph.cpp new file mode 100644 index 0000000..68e2ee1 --- /dev/null +++ b/src/3rdparty/adaptagrams/libcola/tests/random_graph.cpp @@ -0,0 +1,113 @@ +/* + * 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<iostream> +#include<vector> +#include <cmath> +#include <time.h> +#include <valarray> + +#include "graphlayouttest.h" + +vector<Edge> random_graph(unsigned n) { + vector<Edge> edges; + for(unsigned i=1;i<n;i++) { + edges.push_back(make_pair(i-1,i)); + } + for(unsigned i=0;i<n;i++) { + for(unsigned j=i+1;j<n;j++) { + double r=(double)rand()/(double)RAND_MAX; + if(r < 1./(double)n) { + edges.push_back(make_pair(i,j)); + } + } + } + + return edges; +} +int main() { + unsigned V=100; + CompoundConstraints ccs; + vector<Edge> es = random_graph(V); + double defaultEdgeLength=40; + for(unsigned i=0;i<es.size();i++) { + unsigned start=es[i].first, end=es[i].second; + ccs.push_back( + new SeparationConstraint(vpsc::YDIM, start,end,-10)); + } + + cout << "V="<<V<<endl; + double width=1000; + double height=1000; + //srand(time(nullptr)); + vector<pair<double,double> > startpos(V); + for(unsigned i=0;i<V;i++) { + double x=getRand(width), y=getRand(height); + startpos[i]=make_pair(x,y); + } + + /*void run_test( + vector<pair<double,double> > const &startpos, + vector<Edge> const &es, + const double defaultEdgeLength, + CompoundConstraints &cx, + CompoundConstraints &cy, + const SolverType s, + const bool constrained, + const char *fname, + const char *testdesc) { + */ + +/* + run_test(startpos,es,defaultEdgeLength,cx,cy,CG,false,"random","cg"); + run_test(startpos,es,defaultEdgeLength,cx,cy,IP,false,"random", "ip"); + run_test(startpos,es,defaultEdgeLength,cx,cy,UGP,false,"random", "ugp"); + run_test(startpos,es,defaultEdgeLength,cx,cy,SGP,false,"random", "sgp"); + run_test(startpos,es,defaultEdgeLength,cx,cy,IP,true,"random", "cip"); + run_test(startpos,es,defaultEdgeLength,cx,cy,UGP,true,"random", "cugp"); + run_test(startpos,es,defaultEdgeLength,cx,cy,SGP,true,"random", "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)); + } + CheckProgress test(0.0001,200); + ConstrainedMajorizationLayout alg(rs,es,nullptr,defaultEdgeLength, + StandardEdgeLengths,&test); + //alg.setYConstraints(&cy); + alg.run(); + ConstrainedFDLayout alg2(rs,es,defaultEdgeLength, + StandardEdgeLengths, &test); + //alg2.setYConstraints(&cy); + alg2.run(); + OutputFile output(rs,es,nullptr,"random.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 : |