alpar@1971: /* -*- C++ -*-
alpar@1971:  *
alpar@1971:  * This file is a part of LEMON, a generic C++ optimization library
alpar@1971:  *
alpar@2553:  * Copyright (C) 2003-2008
alpar@1971:  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
alpar@1971:  * (Egervary Research Group on Combinatorial Optimization, EGRES).
alpar@1971:  *
alpar@1971:  * Permission to use, modify and distribute this software is granted
alpar@1971:  * provided that this copyright notice appears in all copies. For
alpar@1971:  * precise terms see the accompanying LICENSE file.
alpar@1971:  *
alpar@1971:  * This software is provided "AS IS" with no warranty of any kind,
alpar@1971:  * express or implied, and with no claim as to its suitability for any
alpar@1971:  * purpose.
alpar@1971:  *
alpar@1971:  */
alpar@1971: 
alpar@1971: /// \ingroup demos
alpar@1971: /// \file
kpeter@2476: /// \brief Demo of the EPS grawing class \ref lemon::EpsDrawer "EpsDrawer".
alpar@1971: ///
alpar@1971: /// This demo program shows examples how to use the class \ref
kpeter@2476: /// lemon::EpsDrawer "EpsDrawer". It takes no input but simply creates
kpeter@2476: /// a file <tt>eps_demo.eps</tt> demonstrating the capability of \ref
kpeter@2476: /// lemon::EpsDrawer "EpsDrawer".
alpar@1971: ///
alpar@1971: /// \include eps_demo.cc
alpar@1971: 
alpar@1971: #include <cmath>
alpar@1971: #include <lemon/eps.h>
alpar@1971: 
alpar@1971: using namespace lemon;
alpar@1971: 
alpar@1971: void kosar(EpsDrawer &ed)
alpar@1971: {
alpar@1971:   double d,r;
alpar@1971:   
alpar@1971:   r = sqrt(2);
alpar@1971:   
alpar@1971:   ed.save();
alpar@1971:   
alpar@1971:   ed.translate(256,256).scale(256,256);
alpar@1971:   ed.lineWidth(1/256);
alpar@1971:   
alpar@1971:   ed.collect();
alpar@1971:   
alpar@1971:   ed.moveTo(0,1);
alpar@1971:   
alpar@2568:   for(d=0;d<PI*2*5;d+=.1)
alpar@1971:     {
alpar@1971:       ed.lineTo(sin(d*3),cos(d*5));
alpar@1971:     }
alpar@1971:   
alpar@1971:   ed.stroke();
alpar@1971:   ed.restore();
alpar@1971:   
alpar@1971: }
alpar@1971: 
alpar@1971: void fonts(EpsDrawer &ed)
alpar@1971: {
alpar@1971:   ed.save().centerMode(true);
alpar@1971:   
alpar@1971:   ed.font("Helvetica").fontSize(90);
alpar@1971:   ed.moveTo(256,512/3*2+50) << "Helvetica";
alpar@1971:   ed.font("Courier");
alpar@1971:   ed.moveTo(256,512/3+50) << "Courier" ;
alpar@1971:   ed.font("Times-Roman");
alpar@1971:   ed.moveTo(256,50) << "Times-Roman";
alpar@1971:   
alpar@1971:   ed.centerMode(false).restore();
alpar@1971: }
alpar@1971: 
alpar@1971: int main()
alpar@1971: {
alpar@1971: 
alpar@1971:   EpsDrawer ed("eps_demo.eps",512,512);
alpar@1971:   ed.scale(1,1);
alpar@1971:   
alpar@1971:   ed.color(0,0,0).collect();
alpar@1971:   ed.moveTo(0,0).lineTo(0,512).lineTo(512,512).lineTo(512,0).closePath().fill();
alpar@1971:   
alpar@1971:   ed.lineWidth(4);
alpar@1971:   
alpar@1971:   for(double r=0;r<=256;r+=2)
alpar@1971:     {
alpar@1971:       ed.color(r/256.0,0,1-r/256.0).circle(256,256,r);
alpar@1971:     }
alpar@1971:   
alpar@1971:   
alpar@1971:   ed.save();
alpar@1971:   ed.color(0,0,0);
alpar@1971:   ed.translate(256,256);
alpar@1971:   
alpar@1971:   for(int i=0;i<18;i++)
alpar@1971:     {
alpar@1971:       ed.rotate(20);
alpar@1971:       
alpar@1971:       for(double r=0;r<=256;r+=20)
alpar@1971: 	ed.fontSize(r/10+1).rotate(2).moveTo(0,r) << r;
alpar@1971:       ed.rotate(-26);
alpar@1971:       
alpar@1971:     }
alpar@1971:   
alpar@1971:   ed.restore();
alpar@1971:   
alpar@1971:   fonts(ed.color(.7,.7,.7));
alpar@1971:   ed.color(0,1,0);
alpar@2008: 
alpar@2008:   ed.node(ed.CIRCLE,128,333,25);
alpar@2008:   ed.node(ed.SQUARE,256,333,25);
alpar@2008:   ed.node(ed.DIAMOND,128+256,333,25);
alpar@2008: 
alpar@1971:   kosar(ed);
alpar@1971: }