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/* -*- C++ -*-
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*
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* This file is a part of LEMON, a generic C++ optimization library
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*
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* Copyright (C) 2003-2006
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* Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
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* (Egervary Research Group on Combinatorial Optimization, EGRES).
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*
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* Permission to use, modify and distribute this software is granted
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* provided that this copyright notice appears in all copies. For
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* precise terms see the accompanying LICENSE file.
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*
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* This software is provided "AS IS" with no warranty of any kind,
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* express or implied, and with no claim as to its suitability for any
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* purpose.
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*
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*/
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/// \ingroup demos
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/// \file
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/// \brief Demo of the EPS grawing class \ref EpsDrawer()
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///
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/// This demo program shows examples how to use the class \ref
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/// EpsDrawer(). It takes no input but simply creates a file
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/// <tt>eps_demo.eps</tt> demonstrating the capability of \ref
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/// EpsDrawer().
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///
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/// \include eps_demo.cc
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#include <cmath>
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#include <lemon/eps.h>
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using namespace lemon;
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void kosar(EpsDrawer &ed)
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{
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double d,r;
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r = sqrt(2);
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ed.save();
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ed.translate(256,256).scale(256,256);
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ed.lineWidth(1/256);
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ed.collect();
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ed.moveTo(0,1);
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for(d=0;d<M_PI*2*5;d+=.1)
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{
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ed.lineTo(sin(d*3),cos(d*5));
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}
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ed.stroke();
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ed.restore();
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}
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void fonts(EpsDrawer &ed)
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{
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ed.save().centerMode(true);
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ed.font("Helvetica").fontSize(90);
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ed.moveTo(256,512/3*2+50) << "Helvetica";
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ed.font("Courier");
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ed.moveTo(256,512/3+50) << "Courier" ;
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ed.font("Times-Roman");
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ed.moveTo(256,50) << "Times-Roman";
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ed.centerMode(false).restore();
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}
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int main()
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{
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EpsDrawer ed("eps_demo.eps",512,512);
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ed.scale(1,1);
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ed.color(0,0,0).collect();
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ed.moveTo(0,0).lineTo(0,512).lineTo(512,512).lineTo(512,0).closePath().fill();
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ed.lineWidth(4);
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for(double r=0;r<=256;r+=2)
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{
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ed.color(r/256.0,0,1-r/256.0).circle(256,256,r);
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}
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ed.save();
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ed.color(0,0,0);
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ed.translate(256,256);
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for(int i=0;i<18;i++)
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{
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ed.rotate(20);
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for(double r=0;r<=256;r+=20)
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ed.fontSize(r/10+1).rotate(2).moveTo(0,r) << r;
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ed.rotate(-26);
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}
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ed.restore();
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fonts(ed.color(.7,.7,.7));
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ed.color(0,1,0);
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ed.node(ed.CIRCLE,128,333,25);
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ed.node(ed.SQUARE,256,333,25);
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ed.node(ed.DIAMOND,128+256,333,25);
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kosar(ed);
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}
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