COIN-OR::LEMON - Graph Library

source: lemon-0.x/demo/eps_demo.cc @ 2390:8450951a8e2d

Last change on this file since 2390:8450951a8e2d was 2008:0820d8168cbb, checked in by Alpar Juttner, 14 years ago

"Node shapes" added

File size: 2.3 KB
Line 
1/* -*- C++ -*-
2 *
3 * This file is a part of LEMON, a generic C++ optimization library
4 *
5 * Copyright (C) 2003-2006
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 EPS grawing class \ref EpsDrawer()
22///
23/// This demo program shows examples how to use the class \ref
24/// EpsDrawer(). It takes no input but simply creates a file
25/// <tt>eps_demo.eps</tt> demonstrating the capability of \ref
26/// EpsDrawer().
27///
28/// \include eps_demo.cc
29
30#include <cmath>
31#include <lemon/eps.h>
32
33using namespace lemon;
34
35void kosar(EpsDrawer &ed)
36{
37  double d,r;
38 
39  r = sqrt(2);
40 
41  ed.save();
42 
43  ed.translate(256,256).scale(256,256);
44  ed.lineWidth(1/256);
45 
46  ed.collect();
47 
48  ed.moveTo(0,1);
49 
50  for(d=0;d<M_PI*2*5;d+=.1)
51    {
52      ed.lineTo(sin(d*3),cos(d*5));
53    }
54 
55  ed.stroke();
56  ed.restore();
57 
58}
59
60void fonts(EpsDrawer &ed)
61{
62  ed.save().centerMode(true);
63 
64  ed.font("Helvetica").fontSize(90);
65  ed.moveTo(256,512/3*2+50) << "Helvetica";
66  ed.font("Courier");
67  ed.moveTo(256,512/3+50) << "Courier" ;
68  ed.font("Times-Roman");
69  ed.moveTo(256,50) << "Times-Roman";
70 
71  ed.centerMode(false).restore();
72}
73
74int main()
75{
76
77  EpsDrawer ed("eps_demo.eps",512,512);
78  ed.scale(1,1);
79 
80  ed.color(0,0,0).collect();
81  ed.moveTo(0,0).lineTo(0,512).lineTo(512,512).lineTo(512,0).closePath().fill();
82 
83  ed.lineWidth(4);
84 
85  for(double r=0;r<=256;r+=2)
86    {
87      ed.color(r/256.0,0,1-r/256.0).circle(256,256,r);
88    }
89 
90 
91  ed.save();
92  ed.color(0,0,0);
93  ed.translate(256,256);
94 
95  for(int i=0;i<18;i++)
96    {
97      ed.rotate(20);
98     
99      for(double r=0;r<=256;r+=20)
100        ed.fontSize(r/10+1).rotate(2).moveTo(0,r) << r;
101      ed.rotate(-26);
102     
103    }
104 
105  ed.restore();
106 
107  fonts(ed.color(.7,.7,.7));
108  ed.color(0,1,0);
109
110  ed.node(ed.CIRCLE,128,333,25);
111  ed.node(ed.SQUARE,256,333,25);
112  ed.node(ed.DIAMOND,128+256,333,25);
113
114  kosar(ed);
115}
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