COIN-OR::LEMON - Graph Library

source: lemon-1.2/demo/graph_to_eps_demo.cc @ 206:4e22275a2b52

Last change on this file since 206:4e22275a2b52 was 206:4e22275a2b52, checked in by Peter Kovacs <kpeter@…>, 11 years ago

Improvements related to graphToEps()

File size: 6.9 KB
Line 
1/* -*- C++ -*-
2 *
3 * This file is a part of LEMON, a generic C++ optimization library
4 *
5 * Copyright (C) 2003-2008
6 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
7 * (Egervary Research Group on Combinatorial Optimization, EGRES).
8 *
9 * Permission to use, modify and distribute this software is granted
10 * provided that this copyright notice appears in all copies. For
11 * precise terms see the accompanying LICENSE file.
12 *
13 * This software is provided "AS IS" with no warranty of any kind,
14 * express or implied, and with no claim as to its suitability for any
15 * purpose.
16 *
17 */
18
19/// \ingroup demos
20/// \file
21/// \brief Demo of the graph drawing function \ref graphToEps()
22///
23/// This demo program shows examples how to  use the function \ref
24/// graphToEps(). It takes no input but simply creates  six
25/// <tt>.eps</tt> files demonstrating the capability of \ref
26/// graphToEps(), and showing how to draw directed graphs,
27/// how to handle parallel egdes, how to change the properties (like
28/// color, shape, size, title etc.) of nodes and arcs individually
29/// using appropriate \ref maps-page "graph maps".
30///
31/// \include graph_to_eps_demo.cc
32
33#include<lemon/list_graph.h>
34#include<lemon/graph_utils.h>
35#include<lemon/graph_to_eps.h>
36#include<lemon/math.h>
37
38using namespace std;
39using namespace lemon;
40
41int main()
42{
43  Palette palette;
44  Palette paletteW(true);
45
46  // Create a small digraph
47  ListDigraph g;
48  typedef ListDigraph::Node Node;
49  typedef ListDigraph::NodeIt NodeIt;
50  typedef ListDigraph::Arc Arc;
51  typedef dim2::Point<int> Point;
52 
53  Node n1=g.addNode();
54  Node n2=g.addNode();
55  Node n3=g.addNode();
56  Node n4=g.addNode();
57  Node n5=g.addNode();
58
59  ListDigraph::NodeMap<Point> coords(g);
60  ListDigraph::NodeMap<double> sizes(g);
61  ListDigraph::NodeMap<int> colors(g);
62  ListDigraph::NodeMap<int> shapes(g);
63  ListDigraph::ArcMap<int> acolors(g);
64  ListDigraph::ArcMap<int> widths(g);
65 
66  coords[n1]=Point(50,50);  sizes[n1]=1; colors[n1]=1; shapes[n1]=0;
67  coords[n2]=Point(50,70);  sizes[n2]=2; colors[n2]=2; shapes[n2]=2;
68  coords[n3]=Point(70,70);  sizes[n3]=1; colors[n3]=3; shapes[n3]=0;
69  coords[n4]=Point(70,50);  sizes[n4]=2; colors[n4]=4; shapes[n4]=1;
70  coords[n5]=Point(85,60);  sizes[n5]=3; colors[n5]=5; shapes[n5]=2;
71 
72  Arc a;
73
74  a=g.addArc(n1,n2); acolors[a]=0; widths[a]=1;
75  a=g.addArc(n2,n3); acolors[a]=0; widths[a]=1;
76  a=g.addArc(n3,n5); acolors[a]=0; widths[a]=3;
77  a=g.addArc(n5,n4); acolors[a]=0; widths[a]=1;
78  a=g.addArc(n4,n1); acolors[a]=0; widths[a]=1;
79  a=g.addArc(n2,n4); acolors[a]=1; widths[a]=2;
80  a=g.addArc(n3,n4); acolors[a]=2; widths[a]=1;
81 
82  IdMap<ListDigraph,Node> id(g);
83
84  // Create five .eps files showing the digraph with different options
85  cout << "Create 'graph_to_eps_demo_out_1_pure.eps'" << endl;
86  graphToEps(g,"graph_to_eps_demo_out_1_pure.eps").
87    coords(coords).
88    title("Sample .eps figure").
89    copyright("(C) 2003-2008 LEMON Project").
90    run();
91
92  cout << "Create 'graph_to_eps_demo_out_2.eps'" << endl;
93  graphToEps(g,"graph_to_eps_demo_out_2.eps").
94    coords(coords).
95    title("Sample .eps figure").
96    copyright("(C) 2003-2008 LEMON Project").
97    absoluteNodeSizes().absoluteArcWidths().
98    nodeScale(2).nodeSizes(sizes).
99    nodeShapes(shapes).
100    nodeColors(composeMap(palette,colors)).
101    arcColors(composeMap(palette,acolors)).
102    arcWidthScale(.4).arcWidths(widths).
103    nodeTexts(id).nodeTextSize(3).
104    run();
105
106  cout << "Create 'graph_to_eps_demo_out_3_arr.eps'" << endl;
107  graphToEps(g,"graph_to_eps_demo_out_3_arr.eps").
108    title("Sample .eps figure (with arrowheads)").
109    copyright("(C) 2003-2008 LEMON Project").
110    absoluteNodeSizes().absoluteArcWidths().
111    nodeColors(composeMap(palette,colors)).
112    coords(coords).
113    nodeScale(2).nodeSizes(sizes).
114    nodeShapes(shapes).
115    arcColors(composeMap(palette,acolors)).
116    arcWidthScale(.4).arcWidths(widths).
117    nodeTexts(id).nodeTextSize(3).
118    drawArrows().arrowWidth(2).arrowLength(2).
119    run();
120
121  a=g.addArc(n1,n4); acolors[a]=2; widths[a]=1;
122  a=g.addArc(n4,n1); acolors[a]=1; widths[a]=2;
123
124  a=g.addArc(n1,n2); acolors[a]=1; widths[a]=1;
125  a=g.addArc(n1,n2); acolors[a]=2; widths[a]=1;
126  a=g.addArc(n1,n2); acolors[a]=3; widths[a]=1;
127  a=g.addArc(n1,n2); acolors[a]=4; widths[a]=1;
128  a=g.addArc(n1,n2); acolors[a]=5; widths[a]=1;
129  a=g.addArc(n1,n2); acolors[a]=6; widths[a]=1;
130  a=g.addArc(n1,n2); acolors[a]=7; widths[a]=1;
131
132  cout << "Create 'graph_to_eps_demo_out_par.eps'" << endl;
133  graphToEps(g,"graph_to_eps_demo_out_par.eps").
134    //scale(10).
135    title("Sample .eps figure (parallel arcs)").
136    copyright("(C) 2003-2008 LEMON Project").
137    absoluteNodeSizes().absoluteArcWidths().
138    nodeShapes(shapes).
139    coords(coords).
140    nodeScale(2).nodeSizes(sizes).
141    nodeColors(composeMap(palette,colors)).
142    arcColors(composeMap(palette,acolors)).
143    arcWidthScale(.4).arcWidths(widths).
144    nodeTexts(id).nodeTextSize(3).
145    enableParallel().parArcDist(1.5).
146    run();
147
148  cout << "Create 'graph_to_eps_demo_out_4_par_arr.eps'" << endl;
149  graphToEps(g,"graph_to_eps_demo_out_4_par_arr.eps").
150    title("Sample .eps figure (parallel arcs and arrowheads)").
151    copyright("(C) 2003-2008 LEMON Project").
152    absoluteNodeSizes().absoluteArcWidths().
153    nodeScale(2).nodeSizes(sizes).
154    coords(coords).
155    nodeShapes(shapes).
156    nodeColors(composeMap(palette,colors)).
157    arcColors(composeMap(palette,acolors)).
158    arcWidthScale(.3).arcWidths(widths).
159    nodeTexts(id).nodeTextSize(3).
160    enableParallel().parArcDist(1).
161    drawArrows().arrowWidth(1).arrowLength(1).
162    run();
163
164  cout << "Create 'graph_to_eps_demo_out_5_par_arr_a4.eps'" << endl;
165  graphToEps(g,"graph_to_eps_demo_out_5_par_arr_a4.eps").
166    title("Sample .eps figure (fits to A4)").
167    copyright("(C) 2003-2008 LEMON Project").
168    scaleToA4().
169    absoluteNodeSizes().absoluteArcWidths().
170    nodeScale(2).nodeSizes(sizes).
171    coords(coords).
172    nodeShapes(shapes).
173    nodeColors(composeMap(palette,colors)).
174    arcColors(composeMap(palette,acolors)).
175    arcWidthScale(.3).arcWidths(widths).
176    nodeTexts(id).nodeTextSize(3).
177    enableParallel().parArcDist(1).
178    drawArrows().arrowWidth(1).arrowLength(1).
179    run();
180
181  // Create an .eps file showing the colors of a default Palette
182  ListDigraph h;
183  ListDigraph::NodeMap<int> hcolors(h);
184  ListDigraph::NodeMap<Point> hcoords(h);
185 
186  int cols=int(sqrt(double(palette.size())));
187  for(int i=0;i<int(paletteW.size());i++) {
188    Node n=h.addNode();
189    hcoords[n]=Point(1+i%cols,1+i/cols);
190    hcolors[n]=i;
191  }
192 
193  cout << "Create 'graph_to_eps_demo_out_6_colors.eps'" << endl;
194  graphToEps(h,"graph_to_eps_demo_out_6_colors.eps").
195    scale(60).
196    title("Sample .eps figure (Palette demo)").
197    copyright("(C) 2003-2008 LEMON Project").
198    coords(hcoords).
199    absoluteNodeSizes().absoluteArcWidths().
200    nodeScale(.45).
201    distantColorNodeTexts().
202    nodeTexts(hcolors).nodeTextSize(.6).
203    nodeColors(composeMap(paletteW,hcolors)).
204    run();
205   
206  return 0;
207}
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