lemon/graph_to_eps.h
author Alpar Juttner <alpar@cs.elte.hu>
Fri, 18 Apr 2008 06:20:32 +0100
changeset 137 483bc6ed7292
parent 133 d76e2ff9c70d
child 143 c3b45bb643b0
permissions -rw-r--r--
Backout some rubbish from chageset 7cd965d2257f
alpar@128
     1
/* -*- C++ -*-
alpar@128
     2
 *
alpar@128
     3
 * This file is a part of LEMON, a generic C++ optimization library
alpar@128
     4
 *
alpar@128
     5
 * Copyright (C) 2003-2008
alpar@128
     6
 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
alpar@128
     7
 * (Egervary Research Group on Combinatorial Optimization, EGRES).
alpar@128
     8
 *
alpar@128
     9
 * Permission to use, modify and distribute this software is granted
alpar@128
    10
 * provided that this copyright notice appears in all copies. For
alpar@128
    11
 * precise terms see the accompanying LICENSE file.
alpar@128
    12
 *
alpar@128
    13
 * This software is provided "AS IS" with no warranty of any kind,
alpar@128
    14
 * express or implied, and with no claim as to its suitability for any
alpar@128
    15
 * purpose.
alpar@128
    16
 *
alpar@128
    17
 */
alpar@128
    18
alpar@128
    19
#ifndef LEMON_GRAPH_TO_EPS_H
alpar@128
    20
#define LEMON_GRAPH_TO_EPS_H
alpar@128
    21
alpar@128
    22
#include<iostream>
alpar@128
    23
#include<fstream>
alpar@128
    24
#include<sstream>
alpar@128
    25
#include<algorithm>
alpar@128
    26
#include<vector>
alpar@128
    27
deba@134
    28
#ifndef WIN32
deba@134
    29
#include<sys/time.h>
alpar@128
    30
#include<ctime>
deba@134
    31
#else
deba@134
    32
#include<windows.h>
deba@134
    33
#endif
alpar@128
    34
alpar@128
    35
#include<lemon/math.h>
alpar@128
    36
#include<lemon/bits/invalid.h>
alpar@128
    37
#include<lemon/dim2.h>
alpar@128
    38
#include<lemon/maps.h>
alpar@128
    39
#include<lemon/color.h>
alpar@128
    40
#include<lemon/bits/bezier.h>
alpar@128
    41
alpar@128
    42
alpar@128
    43
///\ingroup eps_io
alpar@128
    44
///\file
alpar@133
    45
///\brief A well configurable tool for visualizing graphs
alpar@128
    46
alpar@128
    47
namespace lemon {
alpar@128
    48
alpar@131
    49
  namespace _graph_to_eps_bits {
alpar@131
    50
    template<class MT>
alpar@131
    51
    class _NegY {
alpar@131
    52
    public:
alpar@131
    53
      typedef typename MT::Key Key;
alpar@131
    54
      typedef typename MT::Value Value;
alpar@131
    55
      const MT &map;
alpar@131
    56
      int yscale;
alpar@131
    57
      _NegY(const MT &m,bool b) : map(m), yscale(1-b*2) {}
alpar@131
    58
      Value operator[](Key n) { return Value(map[n].x,map[n].y*yscale);}
alpar@131
    59
    };
alpar@131
    60
  }
alpar@131
    61
  
alpar@128
    62
///Default traits class of \ref GraphToEps
alpar@128
    63
alpar@128
    64
///Default traits class of \ref GraphToEps
alpar@128
    65
///
alpar@128
    66
///\c G is the type of the underlying graph.
alpar@128
    67
template<class G>
alpar@128
    68
struct DefaultGraphToEpsTraits
alpar@128
    69
{
alpar@128
    70
  typedef G Graph;
alpar@128
    71
  typedef typename Graph::Node Node;
alpar@128
    72
  typedef typename Graph::NodeIt NodeIt;
alpar@128
    73
  typedef typename Graph::Arc Arc;
alpar@128
    74
  typedef typename Graph::ArcIt ArcIt;
alpar@128
    75
  typedef typename Graph::InArcIt InArcIt;
alpar@128
    76
  typedef typename Graph::OutArcIt OutArcIt;
alpar@128
    77
  
alpar@128
    78
alpar@128
    79
  const Graph &g;
alpar@128
    80
alpar@128
    81
  std::ostream& os;
alpar@128
    82
  
alpar@128
    83
  typedef ConstMap<typename Graph::Node,dim2::Point<double> > CoordsMapType;
alpar@128
    84
  CoordsMapType _coords;
alpar@128
    85
  ConstMap<typename Graph::Node,double > _nodeSizes;
alpar@128
    86
  ConstMap<typename Graph::Node,int > _nodeShapes;
alpar@128
    87
alpar@128
    88
  ConstMap<typename Graph::Node,Color > _nodeColors;
alpar@128
    89
  ConstMap<typename Graph::Arc,Color > _arcColors;
alpar@128
    90
alpar@128
    91
  ConstMap<typename Graph::Arc,double > _arcWidths;
alpar@128
    92
alpar@128
    93
  double _arcWidthScale;
alpar@128
    94
  
alpar@128
    95
  double _nodeScale;
alpar@128
    96
  double _xBorder, _yBorder;
alpar@128
    97
  double _scale;
alpar@128
    98
  double _nodeBorderQuotient;
alpar@128
    99
  
alpar@128
   100
  bool _drawArrows;
alpar@128
   101
  double _arrowLength, _arrowWidth;
alpar@128
   102
  
alpar@128
   103
  bool _showNodes, _showArcs;
alpar@128
   104
alpar@128
   105
  bool _enableParallel;
alpar@128
   106
  double _parArcDist;
alpar@128
   107
alpar@128
   108
  bool _showNodeText;
alpar@128
   109
  ConstMap<typename Graph::Node,bool > _nodeTexts;  
alpar@128
   110
  double _nodeTextSize;
alpar@128
   111
alpar@128
   112
  bool _showNodePsText;
alpar@128
   113
  ConstMap<typename Graph::Node,bool > _nodePsTexts;  
alpar@128
   114
  char *_nodePsTextsPreamble;
alpar@128
   115
  
alpar@128
   116
  bool _undirected;
alpar@128
   117
alpar@128
   118
  bool _pleaseRemoveOsStream;
alpar@128
   119
alpar@128
   120
  bool _scaleToA4;
alpar@128
   121
alpar@128
   122
  std::string _title;
alpar@128
   123
  std::string _copyright;
alpar@128
   124
alpar@128
   125
  enum NodeTextColorType 
alpar@128
   126
    { DIST_COL=0, DIST_BW=1, CUST_COL=2, SAME_COL=3 } _nodeTextColorType;
alpar@128
   127
  ConstMap<typename Graph::Node,Color > _nodeTextColors;
alpar@128
   128
alpar@128
   129
  bool _autoNodeScale;
alpar@128
   130
  bool _autoArcWidthScale;
alpar@128
   131
alpar@128
   132
  bool _absoluteNodeSizes;
alpar@128
   133
  bool _absoluteArcWidths;
alpar@128
   134
alpar@128
   135
  bool _negY;
alpar@128
   136
alpar@128
   137
  bool _preScale;
alpar@128
   138
  ///Constructor
alpar@128
   139
alpar@128
   140
  ///Constructor
alpar@128
   141
  ///\param _g is a reference to the graph to be printed
alpar@128
   142
  ///\param _os is a reference to the output stream.
alpar@128
   143
  ///\param _os is a reference to the output stream.
alpar@128
   144
  ///\param _pros If it is \c true, then the \c ostream referenced by \c _os
alpar@128
   145
  ///will be explicitly deallocated by the destructor.
alpar@128
   146
  ///By default it is <tt>std::cout</tt>
alpar@128
   147
  DefaultGraphToEpsTraits(const G &_g,std::ostream& _os=std::cout,
alpar@128
   148
			  bool _pros=false) :
alpar@128
   149
    g(_g), os(_os),
alpar@132
   150
    _coords(dim2::Point<double>(1,1)), _nodeSizes(1), _nodeShapes(0),
alpar@128
   151
    _nodeColors(WHITE), _arcColors(BLACK),
alpar@128
   152
    _arcWidths(1.0), _arcWidthScale(0.003),
alpar@132
   153
    _nodeScale(.01), _xBorder(10), _yBorder(10), _scale(1.0),
alpar@128
   154
    _nodeBorderQuotient(.1),
alpar@128
   155
    _drawArrows(false), _arrowLength(1), _arrowWidth(0.3),
alpar@128
   156
    _showNodes(true), _showArcs(true),
alpar@128
   157
    _enableParallel(false), _parArcDist(1),
alpar@128
   158
    _showNodeText(false), _nodeTexts(false), _nodeTextSize(1),
alpar@128
   159
    _showNodePsText(false), _nodePsTexts(false), _nodePsTextsPreamble(0),
alpar@131
   160
    _undirected(lemon::UndirectedTagIndicator<G>::value),
alpar@128
   161
    _pleaseRemoveOsStream(_pros), _scaleToA4(false),
alpar@128
   162
    _nodeTextColorType(SAME_COL), _nodeTextColors(BLACK),
alpar@128
   163
    _autoNodeScale(false),
alpar@128
   164
    _autoArcWidthScale(false),
alpar@128
   165
    _absoluteNodeSizes(false),
alpar@128
   166
    _absoluteArcWidths(false),
alpar@128
   167
    _negY(false),
alpar@128
   168
    _preScale(true)
alpar@128
   169
  {}
alpar@128
   170
};
alpar@128
   171
alpar@133
   172
///Auxiliary class to implement the named parameters of \ref graphToEps()
alpar@128
   173
alpar@133
   174
///Auxiliary class to implement the named parameters of \ref graphToEps()
alpar@128
   175
template<class T> class GraphToEps : public T 
alpar@128
   176
{
alpar@128
   177
  // Can't believe it is required by the C++ standard
alpar@128
   178
  using T::g;
alpar@128
   179
  using T::os;
alpar@128
   180
alpar@128
   181
  using T::_coords;
alpar@128
   182
  using T::_nodeSizes;
alpar@128
   183
  using T::_nodeShapes;
alpar@128
   184
  using T::_nodeColors;
alpar@128
   185
  using T::_arcColors;
alpar@128
   186
  using T::_arcWidths;
alpar@128
   187
alpar@128
   188
  using T::_arcWidthScale;
alpar@128
   189
  using T::_nodeScale;
alpar@128
   190
  using T::_xBorder;
alpar@128
   191
  using T::_yBorder;
alpar@128
   192
  using T::_scale;
alpar@128
   193
  using T::_nodeBorderQuotient;
alpar@128
   194
  
alpar@128
   195
  using T::_drawArrows;
alpar@128
   196
  using T::_arrowLength;
alpar@128
   197
  using T::_arrowWidth;
alpar@128
   198
  
alpar@128
   199
  using T::_showNodes;
alpar@128
   200
  using T::_showArcs;
alpar@128
   201
alpar@128
   202
  using T::_enableParallel;
alpar@128
   203
  using T::_parArcDist;
alpar@128
   204
alpar@128
   205
  using T::_showNodeText;
alpar@128
   206
  using T::_nodeTexts;  
alpar@128
   207
  using T::_nodeTextSize;
alpar@128
   208
alpar@128
   209
  using T::_showNodePsText;
alpar@128
   210
  using T::_nodePsTexts;  
alpar@128
   211
  using T::_nodePsTextsPreamble;
alpar@128
   212
  
alpar@128
   213
  using T::_undirected;
alpar@128
   214
alpar@128
   215
  using T::_pleaseRemoveOsStream;
alpar@128
   216
alpar@128
   217
  using T::_scaleToA4;
alpar@128
   218
alpar@128
   219
  using T::_title;
alpar@128
   220
  using T::_copyright;
alpar@128
   221
alpar@128
   222
  using T::NodeTextColorType;
alpar@128
   223
  using T::CUST_COL;
alpar@128
   224
  using T::DIST_COL;
alpar@128
   225
  using T::DIST_BW;
alpar@128
   226
  using T::_nodeTextColorType;
alpar@128
   227
  using T::_nodeTextColors;
alpar@128
   228
alpar@128
   229
  using T::_autoNodeScale;
alpar@128
   230
  using T::_autoArcWidthScale;
alpar@128
   231
alpar@128
   232
  using T::_absoluteNodeSizes;
alpar@128
   233
  using T::_absoluteArcWidths;
alpar@128
   234
alpar@128
   235
alpar@128
   236
  using T::_negY;
alpar@128
   237
  using T::_preScale;
alpar@128
   238
alpar@128
   239
  // dradnats ++C eht yb deriuqer si ti eveileb t'naC
alpar@128
   240
alpar@128
   241
  typedef typename T::Graph Graph;
alpar@128
   242
  typedef typename Graph::Node Node;
alpar@128
   243
  typedef typename Graph::NodeIt NodeIt;
alpar@128
   244
  typedef typename Graph::Arc Arc;
alpar@128
   245
  typedef typename Graph::ArcIt ArcIt;
alpar@128
   246
  typedef typename Graph::InArcIt InArcIt;
alpar@128
   247
  typedef typename Graph::OutArcIt OutArcIt;
alpar@128
   248
alpar@128
   249
  static const int INTERPOL_PREC;
alpar@128
   250
  static const double A4HEIGHT;
alpar@128
   251
  static const double A4WIDTH;
alpar@128
   252
  static const double A4BORDER;
alpar@128
   253
alpar@128
   254
  bool dontPrint;
alpar@128
   255
alpar@128
   256
public:
alpar@128
   257
  ///Node shapes
alpar@128
   258
alpar@128
   259
  ///Node shapes
alpar@128
   260
  ///
alpar@128
   261
  enum NodeShapes { 
alpar@128
   262
    /// = 0
alpar@128
   263
    ///\image html nodeshape_0.png
alpar@128
   264
    ///\image latex nodeshape_0.eps "CIRCLE shape (0)" width=2cm
alpar@128
   265
    CIRCLE=0, 
alpar@128
   266
    /// = 1
alpar@128
   267
    ///\image html nodeshape_1.png
alpar@128
   268
    ///\image latex nodeshape_1.eps "SQUARE shape (1)" width=2cm
alpar@128
   269
    ///
alpar@128
   270
    SQUARE=1, 
alpar@128
   271
    /// = 2
alpar@128
   272
    ///\image html nodeshape_2.png
alpar@128
   273
    ///\image latex nodeshape_2.eps "DIAMOND shape (2)" width=2cm
alpar@128
   274
    ///
alpar@128
   275
    DIAMOND=2,
alpar@128
   276
    /// = 3
alpar@128
   277
    ///\image html nodeshape_3.png
alpar@128
   278
    ///\image latex nodeshape_2.eps "MALE shape (4)" width=2cm
alpar@128
   279
    ///
alpar@128
   280
    MALE=3,
alpar@128
   281
    /// = 4
alpar@128
   282
    ///\image html nodeshape_4.png
alpar@128
   283
    ///\image latex nodeshape_2.eps "FEMALE shape (4)" width=2cm
alpar@128
   284
    ///
alpar@128
   285
    FEMALE=4
alpar@128
   286
  };
alpar@128
   287
alpar@128
   288
private:
alpar@128
   289
  class arcLess {
alpar@128
   290
    const Graph &g;
alpar@128
   291
  public:
alpar@128
   292
    arcLess(const Graph &_g) : g(_g) {}
alpar@128
   293
    bool operator()(Arc a,Arc b) const 
alpar@128
   294
    {
alpar@128
   295
      Node ai=std::min(g.source(a),g.target(a));
alpar@128
   296
      Node aa=std::max(g.source(a),g.target(a));
alpar@128
   297
      Node bi=std::min(g.source(b),g.target(b));
alpar@128
   298
      Node ba=std::max(g.source(b),g.target(b));
alpar@128
   299
      return ai<bi ||
alpar@128
   300
	(ai==bi && (aa < ba || 
alpar@128
   301
		    (aa==ba && ai==g.source(a) && bi==g.target(b))));
alpar@128
   302
    }
alpar@128
   303
  };
alpar@128
   304
  bool isParallel(Arc e,Arc f) const
alpar@128
   305
  {
alpar@128
   306
    return (g.source(e)==g.source(f)&&
alpar@128
   307
	    g.target(e)==g.target(f)) ||
alpar@128
   308
      (g.source(e)==g.target(f)&&
alpar@128
   309
       g.target(e)==g.source(f));
alpar@128
   310
  }
alpar@128
   311
  template<class TT>
alpar@128
   312
  static std::string psOut(const dim2::Point<TT> &p) 
alpar@128
   313
    {
alpar@128
   314
      std::ostringstream os;	
alpar@128
   315
      os << p.x << ' ' << p.y;
alpar@128
   316
      return os.str();
alpar@128
   317
    }
alpar@128
   318
  static std::string psOut(const Color &c) 
alpar@128
   319
    {
alpar@128
   320
      std::ostringstream os;	
alpar@128
   321
      os << c.red() << ' ' << c.green() << ' ' << c.blue();
alpar@128
   322
      return os.str();
alpar@128
   323
    }
alpar@128
   324
  
alpar@128
   325
public:
alpar@128
   326
  GraphToEps(const T &t) : T(t), dontPrint(false) {};
alpar@128
   327
  
alpar@128
   328
  template<class X> struct CoordsTraits : public T {
alpar@128
   329
  typedef X CoordsMapType;
alpar@128
   330
    const X &_coords;
alpar@128
   331
    CoordsTraits(const T &t,const X &x) : T(t), _coords(x) {}
alpar@128
   332
  };
alpar@128
   333
  ///Sets the map of the node coordinates
alpar@128
   334
alpar@128
   335
  ///Sets the map of the node coordinates.
alpar@128
   336
  ///\param x must be a node map with dim2::Point<double> or
alpar@128
   337
  ///\ref dim2::Point "dim2::Point<int>" values. 
alpar@128
   338
  template<class X> GraphToEps<CoordsTraits<X> > coords(const X &x) {
alpar@128
   339
    dontPrint=true;
alpar@128
   340
    return GraphToEps<CoordsTraits<X> >(CoordsTraits<X>(*this,x));
alpar@128
   341
  }
alpar@128
   342
  template<class X> struct NodeSizesTraits : public T {
alpar@128
   343
    const X &_nodeSizes;
alpar@128
   344
    NodeSizesTraits(const T &t,const X &x) : T(t), _nodeSizes(x) {}
alpar@128
   345
  };
alpar@128
   346
  ///Sets the map of the node sizes
alpar@128
   347
alpar@128
   348
  ///Sets the map of the node sizes
alpar@128
   349
  ///\param x must be a node map with \c double (or convertible) values. 
alpar@128
   350
  template<class X> GraphToEps<NodeSizesTraits<X> > nodeSizes(const X &x)
alpar@128
   351
  {
alpar@128
   352
    dontPrint=true;
alpar@128
   353
    return GraphToEps<NodeSizesTraits<X> >(NodeSizesTraits<X>(*this,x));
alpar@128
   354
  }
alpar@128
   355
  template<class X> struct NodeShapesTraits : public T {
alpar@128
   356
    const X &_nodeShapes;
alpar@128
   357
    NodeShapesTraits(const T &t,const X &x) : T(t), _nodeShapes(x) {}
alpar@128
   358
  };
alpar@128
   359
  ///Sets the map of the node shapes
alpar@128
   360
alpar@128
   361
  ///Sets the map of the node shapes.
alpar@133
   362
  ///The available shape values
alpar@128
   363
  ///can be found in \ref NodeShapes "enum NodeShapes".
alpar@128
   364
  ///\param x must be a node map with \c int (or convertible) values. 
alpar@128
   365
  ///\sa NodeShapes
alpar@128
   366
  template<class X> GraphToEps<NodeShapesTraits<X> > nodeShapes(const X &x)
alpar@128
   367
  {
alpar@128
   368
    dontPrint=true;
alpar@128
   369
    return GraphToEps<NodeShapesTraits<X> >(NodeShapesTraits<X>(*this,x));
alpar@128
   370
  }
alpar@128
   371
  template<class X> struct NodeTextsTraits : public T {
alpar@128
   372
    const X &_nodeTexts;
alpar@128
   373
    NodeTextsTraits(const T &t,const X &x) : T(t), _nodeTexts(x) {}
alpar@128
   374
  };
alpar@128
   375
  ///Sets the text printed on the nodes
alpar@128
   376
alpar@128
   377
  ///Sets the text printed on the nodes
alpar@128
   378
  ///\param x must be a node map with type that can be pushed to a standard
alpar@128
   379
  ///ostream. 
alpar@128
   380
  template<class X> GraphToEps<NodeTextsTraits<X> > nodeTexts(const X &x)
alpar@128
   381
  {
alpar@128
   382
    dontPrint=true;
alpar@128
   383
    _showNodeText=true;
alpar@128
   384
    return GraphToEps<NodeTextsTraits<X> >(NodeTextsTraits<X>(*this,x));
alpar@128
   385
  }
alpar@128
   386
  template<class X> struct NodePsTextsTraits : public T {
alpar@128
   387
    const X &_nodePsTexts;
alpar@128
   388
    NodePsTextsTraits(const T &t,const X &x) : T(t), _nodePsTexts(x) {}
alpar@128
   389
  };
alpar@128
   390
  ///Inserts a PostScript block to the nodes
alpar@128
   391
alpar@128
   392
  ///With this command it is possible to insert a verbatim PostScript
alpar@128
   393
  ///block to the nodes.
alpar@128
   394
  ///The PS current point will be moved to the centre of the node before
alpar@128
   395
  ///the PostScript block inserted.
alpar@128
   396
  ///
alpar@128
   397
  ///Before and after the block a newline character is inserted so you
alpar@128
   398
  ///don't have to bother with the separators.
alpar@128
   399
  ///
alpar@128
   400
  ///\param x must be a node map with type that can be pushed to a standard
alpar@128
   401
  ///ostream.
alpar@128
   402
  ///
alpar@128
   403
  ///\sa nodePsTextsPreamble()
alpar@128
   404
  template<class X> GraphToEps<NodePsTextsTraits<X> > nodePsTexts(const X &x)
alpar@128
   405
  {
alpar@128
   406
    dontPrint=true;
alpar@128
   407
    _showNodePsText=true;
alpar@128
   408
    return GraphToEps<NodePsTextsTraits<X> >(NodePsTextsTraits<X>(*this,x));
alpar@128
   409
  }
alpar@128
   410
  template<class X> struct ArcWidthsTraits : public T {
alpar@128
   411
    const X &_arcWidths;
alpar@128
   412
    ArcWidthsTraits(const T &t,const X &x) : T(t), _arcWidths(x) {}
alpar@128
   413
  };
alpar@128
   414
  ///Sets the map of the arc widths
alpar@128
   415
alpar@128
   416
  ///Sets the map of the arc widths
alpar@128
   417
  ///\param x must be a arc map with \c double (or convertible) values. 
alpar@128
   418
  template<class X> GraphToEps<ArcWidthsTraits<X> > arcWidths(const X &x)
alpar@128
   419
  {
alpar@128
   420
    dontPrint=true;
alpar@128
   421
    return GraphToEps<ArcWidthsTraits<X> >(ArcWidthsTraits<X>(*this,x));
alpar@128
   422
  }
alpar@128
   423
alpar@128
   424
  template<class X> struct NodeColorsTraits : public T {
alpar@128
   425
    const X &_nodeColors;
alpar@128
   426
    NodeColorsTraits(const T &t,const X &x) : T(t), _nodeColors(x) {}
alpar@128
   427
  };
alpar@128
   428
  ///Sets the map of the node colors
alpar@128
   429
alpar@128
   430
  ///Sets the map of the node colors
alpar@128
   431
  ///\param x must be a node map with \ref Color values.
alpar@128
   432
  ///
alpar@128
   433
  ///\sa Palette
alpar@128
   434
  template<class X> GraphToEps<NodeColorsTraits<X> >
alpar@128
   435
  nodeColors(const X &x)
alpar@128
   436
  {
alpar@128
   437
    dontPrint=true;
alpar@128
   438
    return GraphToEps<NodeColorsTraits<X> >(NodeColorsTraits<X>(*this,x));
alpar@128
   439
  }
alpar@128
   440
  template<class X> struct NodeTextColorsTraits : public T {
alpar@128
   441
    const X &_nodeTextColors;
alpar@128
   442
    NodeTextColorsTraits(const T &t,const X &x) : T(t), _nodeTextColors(x) {}
alpar@128
   443
  };
alpar@128
   444
  ///Sets the map of the node text colors
alpar@128
   445
alpar@128
   446
  ///Sets the map of the node text colors
alpar@128
   447
  ///\param x must be a node map with \ref Color values. 
alpar@128
   448
  ///
alpar@128
   449
  ///\sa Palette
alpar@128
   450
  template<class X> GraphToEps<NodeTextColorsTraits<X> >
alpar@128
   451
  nodeTextColors(const X &x)
alpar@128
   452
  {
alpar@128
   453
    dontPrint=true;
alpar@128
   454
    _nodeTextColorType=CUST_COL;
alpar@128
   455
    return GraphToEps<NodeTextColorsTraits<X> >
alpar@128
   456
      (NodeTextColorsTraits<X>(*this,x));
alpar@128
   457
  }
alpar@128
   458
  template<class X> struct ArcColorsTraits : public T {
alpar@128
   459
    const X &_arcColors;
alpar@128
   460
    ArcColorsTraits(const T &t,const X &x) : T(t), _arcColors(x) {}
alpar@128
   461
  };
alpar@128
   462
  ///Sets the map of the arc colors
alpar@128
   463
alpar@128
   464
  ///Sets the map of the arc colors
alpar@128
   465
  ///\param x must be a arc map with \ref Color values. 
alpar@128
   466
  ///
alpar@128
   467
  ///\sa Palette
alpar@128
   468
  template<class X> GraphToEps<ArcColorsTraits<X> >
alpar@128
   469
  arcColors(const X &x)
alpar@128
   470
  {
alpar@128
   471
    dontPrint=true;
alpar@128
   472
    return GraphToEps<ArcColorsTraits<X> >(ArcColorsTraits<X>(*this,x));
alpar@128
   473
  }
alpar@128
   474
  ///Sets a global scale factor for node sizes
alpar@128
   475
alpar@128
   476
  ///Sets a global scale factor for node sizes.
alpar@128
   477
  /// 
alpar@128
   478
  /// If nodeSizes() is not given, this function simply sets the node
alpar@128
   479
  /// sizes to \c d.  If nodeSizes() is given, but
alpar@128
   480
  /// autoNodeScale() is not, then the node size given by
alpar@128
   481
  /// nodeSizes() will be multiplied by the value \c d.
alpar@128
   482
  /// If both nodeSizes() and autoNodeScale() are used, then the
alpar@128
   483
  /// node sizes will be scaled in such a way that the greatest size will be
alpar@128
   484
  /// equal to \c d.
alpar@128
   485
  /// \sa nodeSizes()
alpar@128
   486
  /// \sa autoNodeScale()
alpar@132
   487
  GraphToEps<T> &nodeScale(double d=.01) {_nodeScale=d;return *this;}
alpar@128
   488
  ///Turns on/off the automatic node width scaling.
alpar@128
   489
alpar@128
   490
  ///Turns on/off the automatic node width scaling.
alpar@128
   491
  ///
alpar@128
   492
  ///\sa nodeScale()
alpar@128
   493
  ///
alpar@128
   494
  GraphToEps<T> &autoNodeScale(bool b=true) {
alpar@128
   495
    _autoNodeScale=b;return *this;
alpar@128
   496
  }
alpar@128
   497
alpar@128
   498
  ///Turns on/off the absolutematic node width scaling.
alpar@128
   499
alpar@128
   500
  ///Turns on/off the absolutematic node width scaling.
alpar@128
   501
  ///
alpar@128
   502
  ///\sa nodeScale()
alpar@128
   503
  ///
alpar@128
   504
  GraphToEps<T> &absoluteNodeSizes(bool b=true) {
alpar@128
   505
    _absoluteNodeSizes=b;return *this;
alpar@128
   506
  }
alpar@128
   507
alpar@128
   508
  ///Negates the Y coordinates.
alpar@128
   509
alpar@128
   510
  ///Negates the Y coordinates.
alpar@128
   511
  ///
alpar@128
   512
  GraphToEps<T> &negateY(bool b=true) {
alpar@128
   513
    _negY=b;return *this;
alpar@128
   514
  }
alpar@128
   515
alpar@133
   516
  ///Turn on/off pre-scaling
alpar@128
   517
alpar@128
   518
  ///By default graphToEps() rescales the whole image in order to avoid
alpar@128
   519
  ///very big or very small bounding boxes.
alpar@128
   520
  ///
alpar@128
   521
  ///This (p)rescaling can be turned off with this function.
alpar@128
   522
  ///
alpar@128
   523
  GraphToEps<T> &preScale(bool b=true) {
alpar@128
   524
    _preScale=b;return *this;
alpar@128
   525
  }
alpar@128
   526
alpar@128
   527
  ///Sets a global scale factor for arc widths
alpar@128
   528
alpar@128
   529
  /// Sets a global scale factor for arc widths.
alpar@128
   530
  ///
alpar@128
   531
  /// If arcWidths() is not given, this function simply sets the arc
alpar@128
   532
  /// widths to \c d.  If arcWidths() is given, but
alpar@128
   533
  /// autoArcWidthScale() is not, then the arc withs given by
alpar@128
   534
  /// arcWidths() will be multiplied by the value \c d.
alpar@128
   535
  /// If both arcWidths() and autoArcWidthScale() are used, then the
alpar@128
   536
  /// arc withs will be scaled in such a way that the greatest width will be
alpar@128
   537
  /// equal to \c d.
alpar@132
   538
  GraphToEps<T> &arcWidthScale(double d=.003) {_arcWidthScale=d;return *this;}
alpar@128
   539
  ///Turns on/off the automatic arc width scaling.
alpar@128
   540
alpar@128
   541
  ///Turns on/off the automatic arc width scaling.
alpar@128
   542
  ///
alpar@128
   543
  ///\sa arcWidthScale()
alpar@128
   544
  ///
alpar@128
   545
  GraphToEps<T> &autoArcWidthScale(bool b=true) {
alpar@128
   546
    _autoArcWidthScale=b;return *this;
alpar@128
   547
  }
alpar@128
   548
  ///Turns on/off the absolutematic arc width scaling.
alpar@128
   549
alpar@128
   550
  ///Turns on/off the absolutematic arc width scaling.
alpar@128
   551
  ///
alpar@128
   552
  ///\sa arcWidthScale()
alpar@128
   553
  ///
alpar@128
   554
  GraphToEps<T> &absoluteArcWidths(bool b=true) {
alpar@128
   555
    _absoluteArcWidths=b;return *this;
alpar@128
   556
  }
alpar@128
   557
  ///Sets a global scale factor for the whole picture
alpar@128
   558
alpar@128
   559
  ///Sets a global scale factor for the whole picture
alpar@128
   560
  ///
alpar@128
   561
alpar@128
   562
  GraphToEps<T> &scale(double d) {_scale=d;return *this;}
alpar@128
   563
  ///Sets the width of the border around the picture
alpar@128
   564
alpar@128
   565
  ///Sets the width of the border around the picture
alpar@128
   566
  ///
alpar@133
   567
  GraphToEps<T> &border(double b=10) {_xBorder=_yBorder=b;return *this;}
alpar@128
   568
  ///Sets the width of the border around the picture
alpar@128
   569
alpar@128
   570
  ///Sets the width of the border around the picture
alpar@128
   571
  ///
alpar@128
   572
  GraphToEps<T> &border(double x, double y) {
alpar@128
   573
    _xBorder=x;_yBorder=y;return *this;
alpar@128
   574
  }
alpar@128
   575
  ///Sets whether to draw arrows
alpar@128
   576
alpar@128
   577
  ///Sets whether to draw arrows
alpar@128
   578
  ///
alpar@128
   579
  GraphToEps<T> &drawArrows(bool b=true) {_drawArrows=b;return *this;}
alpar@128
   580
  ///Sets the length of the arrowheads
alpar@128
   581
alpar@128
   582
  ///Sets the length of the arrowheads
alpar@128
   583
  ///
alpar@133
   584
  GraphToEps<T> &arrowLength(double d=1.0) {_arrowLength*=d;return *this;}
alpar@128
   585
  ///Sets the width of the arrowheads
alpar@128
   586
alpar@128
   587
  ///Sets the width of the arrowheads
alpar@128
   588
  ///
alpar@133
   589
  GraphToEps<T> &arrowWidth(double d=.3) {_arrowWidth*=d;return *this;}
alpar@128
   590
  
alpar@128
   591
  ///Scales the drawing to fit to A4 page
alpar@128
   592
alpar@128
   593
  ///Scales the drawing to fit to A4 page
alpar@128
   594
  ///
alpar@128
   595
  GraphToEps<T> &scaleToA4() {_scaleToA4=true;return *this;}
alpar@128
   596
  
alpar@128
   597
  ///Enables parallel arcs
alpar@128
   598
alpar@128
   599
  ///Enables parallel arcs
alpar@128
   600
  GraphToEps<T> &enableParallel(bool b=true) {_enableParallel=b;return *this;}
alpar@128
   601
  
alpar@128
   602
  ///Sets the distance 
alpar@128
   603
  
alpar@128
   604
  ///Sets the distance 
alpar@128
   605
  ///
alpar@128
   606
  GraphToEps<T> &parArcDist(double d) {_parArcDist*=d;return *this;}
alpar@128
   607
  
alpar@128
   608
  ///Hides the arcs
alpar@128
   609
  
alpar@128
   610
  ///Hides the arcs
alpar@128
   611
  ///
alpar@128
   612
  GraphToEps<T> &hideArcs(bool b=true) {_showArcs=!b;return *this;}
alpar@128
   613
  ///Hides the nodes
alpar@128
   614
  
alpar@128
   615
  ///Hides the nodes
alpar@128
   616
  ///
alpar@128
   617
  GraphToEps<T> &hideNodes(bool b=true) {_showNodes=!b;return *this;}
alpar@128
   618
  
alpar@128
   619
  ///Sets the size of the node texts
alpar@128
   620
  
alpar@128
   621
  ///Sets the size of the node texts
alpar@128
   622
  ///
alpar@128
   623
  GraphToEps<T> &nodeTextSize(double d) {_nodeTextSize=d;return *this;}
alpar@128
   624
alpar@128
   625
  ///Sets the color of the node texts to be different from the node color
alpar@128
   626
alpar@128
   627
  ///Sets the color of the node texts to be as different from the node color
alpar@128
   628
  ///as it is possible
alpar@128
   629
  ///
alpar@128
   630
  GraphToEps<T> &distantColorNodeTexts()
alpar@128
   631
  {_nodeTextColorType=DIST_COL;return *this;}
alpar@128
   632
  ///Sets the color of the node texts to be black or white and always visible.
alpar@128
   633
alpar@128
   634
  ///Sets the color of the node texts to be black or white according to
alpar@128
   635
  ///which is more 
alpar@128
   636
  ///different from the node color
alpar@128
   637
  ///
alpar@128
   638
  GraphToEps<T> &distantBWNodeTexts()
alpar@128
   639
  {_nodeTextColorType=DIST_BW;return *this;}
alpar@128
   640
alpar@128
   641
  ///Gives a preamble block for node Postscript block.
alpar@128
   642
  
alpar@128
   643
  ///Gives a preamble block for node Postscript block.
alpar@128
   644
  ///
alpar@128
   645
  ///\sa nodePsTexts()
alpar@128
   646
  GraphToEps<T> & nodePsTextsPreamble(const char *str) {
alpar@128
   647
    _nodePsTextsPreamble=str ;return *this;
alpar@128
   648
  }
alpar@128
   649
  ///Sets whether the the graph is undirected
alpar@128
   650
alpar@133
   651
  ///Sets whether the the graph is undirected.
alpar@128
   652
  ///
alpar@133
   653
  ///This setting is the default for undirected graphs.
alpar@133
   654
  ///
alpar@133
   655
  ///\sa directed()
alpar@133
   656
   GraphToEps<T> &undirected(bool b=true) {_undirected=b;return *this;}
alpar@128
   657
alpar@128
   658
  ///Sets whether the the graph is directed
alpar@128
   659
alpar@128
   660
  ///Sets whether the the graph is directed.
alpar@128
   661
  ///Use it to show the edges as a pair of directed ones.
alpar@133
   662
  ///
alpar@133
   663
  ///This setting is the default for digraphs.
alpar@133
   664
  ///
alpar@133
   665
  ///\sa undirected()
alpar@131
   666
  GraphToEps<T> &directed(bool b=true) {_undirected=!b;return *this;}
alpar@133
   667
  
alpar@128
   668
  ///Sets the title.
alpar@128
   669
alpar@128
   670
  ///Sets the title of the generated image,
alpar@128
   671
  ///namely it inserts a <tt>%%Title:</tt> DSC field to the header of
alpar@128
   672
  ///the EPS file.
alpar@128
   673
  GraphToEps<T> &title(const std::string &t) {_title=t;return *this;}
alpar@128
   674
  ///Sets the copyright statement.
alpar@128
   675
alpar@128
   676
  ///Sets the copyright statement of the generated image,
alpar@128
   677
  ///namely it inserts a <tt>%%Copyright:</tt> DSC field to the header of
alpar@128
   678
  ///the EPS file.
alpar@128
   679
  GraphToEps<T> &copyright(const std::string &t) {_copyright=t;return *this;}
alpar@128
   680
alpar@128
   681
protected:
alpar@128
   682
  bool isInsideNode(dim2::Point<double> p, double r,int t) 
alpar@128
   683
  {
alpar@128
   684
    switch(t) {
alpar@128
   685
    case CIRCLE:
alpar@128
   686
    case MALE:
alpar@128
   687
    case FEMALE:
alpar@128
   688
      return p.normSquare()<=r*r;
alpar@128
   689
    case SQUARE:
alpar@128
   690
      return p.x<=r&&p.x>=-r&&p.y<=r&&p.y>=-r;
alpar@128
   691
    case DIAMOND:
alpar@128
   692
      return p.x+p.y<=r && p.x-p.y<=r && -p.x+p.y<=r && -p.x-p.y<=r;
alpar@128
   693
    }
alpar@128
   694
    return false;
alpar@128
   695
  }
alpar@128
   696
alpar@128
   697
public:
alpar@128
   698
  ~GraphToEps() { }
alpar@128
   699
  
alpar@128
   700
  ///Draws the graph.
alpar@128
   701
alpar@128
   702
  ///Like other functions using
alpar@128
   703
  ///\ref named-templ-func-param "named template parameters",
alpar@133
   704
  ///this function calls the algorithm itself, i.e. in this case
alpar@128
   705
  ///it draws the graph.
alpar@128
   706
  void run() {
alpar@133
   707
    //\todo better 'epsilon' would be nice here.
alpar@128
   708
    const double EPSILON=1e-9;
alpar@128
   709
    if(dontPrint) return;
alpar@128
   710
    
alpar@131
   711
    _graph_to_eps_bits::_NegY<typename T::CoordsMapType>
alpar@131
   712
      mycoords(_coords,_negY);
alpar@128
   713
alpar@128
   714
    os << "%!PS-Adobe-2.0 EPSF-2.0\n";
alpar@128
   715
    if(_title.size()>0) os << "%%Title: " << _title << '\n';
alpar@128
   716
     if(_copyright.size()>0) os << "%%Copyright: " << _copyright << '\n';
alpar@128
   717
//        << "%%Copyright: XXXX\n"
alpar@128
   718
    os << "%%Creator: LEMON, graphToEps()\n";
deba@134
   719
deba@134
   720
    {    
deba@134
   721
#ifndef WIN32 
alpar@128
   722
      timeval tv;
alpar@128
   723
      gettimeofday(&tv, 0);
deba@134
   724
deba@134
   725
      char cbuf[26];
alpar@128
   726
      ctime_r(&tv.tv_sec,cbuf);
alpar@128
   727
      os << "%%CreationDate: " << cbuf;
deba@134
   728
#else
deba@134
   729
      SYSTEMTIME time;
deba@134
   730
      char buf1[11], buf2[9], buf3[5];
deba@134
   731
      
deba@134
   732
      GetSystemTime(&time);
deba@134
   733
      if (GetDateFormat(LOCALE_USER_DEFAULT, 0, &time, 
deba@134
   734
			"ddd MMM dd", buf1, 11) &&
deba@134
   735
	  GetTimeFormat(LOCALE_USER_DEFAULT, 0, &time, 
deba@134
   736
			"HH':'mm':'ss", buf2, 9) &&
deba@134
   737
	  GetDateFormat(LOCALE_USER_DEFAULT, 0, &time, 
deba@134
   738
				"yyyy", buf3, 5)) {
deba@134
   739
	os << "%%CreationDate: " << buf1 << ' ' 
deba@134
   740
	   << buf2 << ' ' << buf3 << std::endl;
deba@134
   741
      }	  
deba@134
   742
#endif
alpar@128
   743
    }
alpar@128
   744
alpar@128
   745
    if (_autoArcWidthScale) {
alpar@128
   746
      double max_w=0;
alpar@128
   747
      for(ArcIt e(g);e!=INVALID;++e)
alpar@128
   748
	max_w=std::max(double(_arcWidths[e]),max_w);
alpar@128
   749
      ///\todo better 'epsilon' would be nice here.
alpar@128
   750
      if(max_w>EPSILON) {
alpar@128
   751
	_arcWidthScale/=max_w;
alpar@128
   752
      }
alpar@128
   753
    }
alpar@128
   754
alpar@128
   755
    if (_autoNodeScale) {
alpar@128
   756
      double max_s=0;
alpar@128
   757
      for(NodeIt n(g);n!=INVALID;++n)
alpar@128
   758
	max_s=std::max(double(_nodeSizes[n]),max_s);
alpar@128
   759
      ///\todo better 'epsilon' would be nice here.
alpar@128
   760
      if(max_s>EPSILON) {
alpar@128
   761
	_nodeScale/=max_s;
alpar@128
   762
      }
alpar@128
   763
    }
alpar@128
   764
alpar@128
   765
    double diag_len = 1;
alpar@128
   766
    if(!(_absoluteNodeSizes&&_absoluteArcWidths)) {
alpar@128
   767
      dim2::BoundingBox<double> bb;
alpar@128
   768
      for(NodeIt n(g);n!=INVALID;++n) bb.add(mycoords[n]);
alpar@128
   769
      if (bb.empty()) {
alpar@128
   770
	bb = dim2::BoundingBox<double>(dim2::Point<double>(0,0));
alpar@128
   771
      }
alpar@128
   772
      diag_len = std::sqrt((bb.bottomLeft()-bb.topRight()).normSquare());
alpar@128
   773
      if(diag_len<EPSILON) diag_len = 1;
alpar@128
   774
      if(!_absoluteNodeSizes) _nodeScale*=diag_len;
alpar@128
   775
      if(!_absoluteArcWidths) _arcWidthScale*=diag_len;
alpar@128
   776
    }
alpar@128
   777
    
alpar@128
   778
    dim2::BoundingBox<double> bb;
alpar@128
   779
    for(NodeIt n(g);n!=INVALID;++n) {
alpar@128
   780
      double ns=_nodeSizes[n]*_nodeScale;
alpar@128
   781
      dim2::Point<double> p(ns,ns);
alpar@128
   782
      switch(_nodeShapes[n]) {
alpar@128
   783
      case CIRCLE:
alpar@128
   784
      case SQUARE:
alpar@128
   785
      case DIAMOND:
alpar@128
   786
	bb.add(p+mycoords[n]);
alpar@128
   787
	bb.add(-p+mycoords[n]);
alpar@128
   788
	break;
alpar@128
   789
      case MALE:
alpar@128
   790
	bb.add(-p+mycoords[n]);
alpar@128
   791
	bb.add(dim2::Point<double>(1.5*ns,1.5*std::sqrt(3.0)*ns)+mycoords[n]);
alpar@128
   792
	break;
alpar@128
   793
      case FEMALE:
alpar@128
   794
	bb.add(p+mycoords[n]);
alpar@128
   795
	bb.add(dim2::Point<double>(-ns,-3.01*ns)+mycoords[n]);
alpar@128
   796
	break;
alpar@128
   797
      }
alpar@128
   798
    }
alpar@128
   799
    if (bb.empty()) {
alpar@128
   800
      bb = dim2::BoundingBox<double>(dim2::Point<double>(0,0));
alpar@128
   801
    }
alpar@128
   802
    
alpar@128
   803
    if(_scaleToA4)
alpar@128
   804
      os <<"%%BoundingBox: 0 0 596 842\n%%DocumentPaperSizes: a4\n";
alpar@128
   805
    else {
alpar@128
   806
      if(_preScale) {
alpar@128
   807
	//Rescale so that BoundingBox won't be neither to big nor too small.
alpar@128
   808
	while(bb.height()*_scale>1000||bb.width()*_scale>1000) _scale/=10;
alpar@128
   809
	while(bb.height()*_scale<100||bb.width()*_scale<100) _scale*=10;
alpar@128
   810
      }
alpar@128
   811
      
alpar@128
   812
      os << "%%BoundingBox: "
alpar@128
   813
	 << int(floor(bb.left()   * _scale - _xBorder)) << ' '
alpar@128
   814
	 << int(floor(bb.bottom() * _scale - _yBorder)) << ' '
alpar@128
   815
	 << int(ceil(bb.right()  * _scale + _xBorder)) << ' '
alpar@128
   816
	 << int(ceil(bb.top()    * _scale + _yBorder)) << '\n';
alpar@128
   817
    }
alpar@128
   818
    
alpar@128
   819
    os << "%%EndComments\n";
alpar@128
   820
    
alpar@128
   821
    //x1 y1 x2 y2 x3 y3 cr cg cb w
alpar@128
   822
    os << "/lb { setlinewidth setrgbcolor newpath moveto\n"
alpar@128
   823
       << "      4 2 roll 1 index 1 index curveto stroke } bind def\n";
alpar@128
   824
    os << "/l { setlinewidth setrgbcolor newpath moveto lineto stroke } bind def\n";
alpar@128
   825
    //x y r
alpar@128
   826
    os << "/c { newpath dup 3 index add 2 index moveto 0 360 arc closepath } bind def\n";
alpar@128
   827
    //x y r
alpar@128
   828
    os << "/sq { newpath 2 index 1 index add 2 index 2 index add moveto\n"
alpar@128
   829
       << "      2 index 1 index sub 2 index 2 index add lineto\n"
alpar@128
   830
       << "      2 index 1 index sub 2 index 2 index sub lineto\n"
alpar@128
   831
       << "      2 index 1 index add 2 index 2 index sub lineto\n"
alpar@128
   832
       << "      closepath pop pop pop} bind def\n";
alpar@128
   833
    //x y r
alpar@128
   834
    os << "/di { newpath 2 index 1 index add 2 index moveto\n"
alpar@128
   835
       << "      2 index             2 index 2 index add lineto\n"
alpar@128
   836
       << "      2 index 1 index sub 2 index             lineto\n"
alpar@128
   837
       << "      2 index             2 index 2 index sub lineto\n"
alpar@128
   838
       << "      closepath pop pop pop} bind def\n";
alpar@128
   839
    // x y r cr cg cb
alpar@128
   840
    os << "/nc { 0 0 0 setrgbcolor 5 index 5 index 5 index c fill\n"
alpar@128
   841
       << "     setrgbcolor " << 1+_nodeBorderQuotient << " div c fill\n"
alpar@128
   842
       << "   } bind def\n";
alpar@128
   843
    os << "/nsq { 0 0 0 setrgbcolor 5 index 5 index 5 index sq fill\n"
alpar@128
   844
       << "     setrgbcolor " << 1+_nodeBorderQuotient << " div sq fill\n"
alpar@128
   845
       << "   } bind def\n";
alpar@128
   846
    os << "/ndi { 0 0 0 setrgbcolor 5 index 5 index 5 index di fill\n"
alpar@128
   847
       << "     setrgbcolor " << 1+_nodeBorderQuotient << " div di fill\n"
alpar@128
   848
       << "   } bind def\n";
alpar@128
   849
    os << "/nfemale { 0 0 0 setrgbcolor 3 index "
alpar@128
   850
       << _nodeBorderQuotient/(1+_nodeBorderQuotient)
alpar@128
   851
       << " 1.5 mul mul setlinewidth\n"
alpar@128
   852
       << "  newpath 5 index 5 index moveto "
alpar@128
   853
       << "5 index 5 index 5 index 3.01 mul sub\n"
alpar@128
   854
       << "  lineto 5 index 4 index .7 mul sub 5 index 5 index 2.2 mul sub moveto\n"
alpar@128
   855
       << "  5 index 4 index .7 mul add 5 index 5 index 2.2 mul sub lineto stroke\n"
alpar@128
   856
       << "  5 index 5 index 5 index c fill\n"
alpar@128
   857
       << "  setrgbcolor " << 1+_nodeBorderQuotient << " div c fill\n"
alpar@128
   858
       << "  } bind def\n";
alpar@128
   859
    os << "/nmale {\n"
alpar@128
   860
       << "  0 0 0 setrgbcolor 3 index "
alpar@128
   861
       << _nodeBorderQuotient/(1+_nodeBorderQuotient)
alpar@128
   862
       <<" 1.5 mul mul setlinewidth\n"
alpar@128
   863
       << "  newpath 5 index 5 index moveto\n"
alpar@128
   864
       << "  5 index 4 index 1 mul 1.5 mul add\n"
alpar@128
   865
       << "  5 index 5 index 3 sqrt 1.5 mul mul add\n"
alpar@128
   866
       << "  1 index 1 index lineto\n"
alpar@128
   867
       << "  1 index 1 index 7 index sub moveto\n"
alpar@128
   868
       << "  1 index 1 index lineto\n"
alpar@128
   869
       << "  exch 5 index 3 sqrt .5 mul mul sub exch 5 index .5 mul sub lineto\n"
alpar@128
   870
       << "  stroke\n"
alpar@128
   871
       << "  5 index 5 index 5 index c fill\n"
alpar@128
   872
       << "  setrgbcolor " << 1+_nodeBorderQuotient << " div c fill\n"
alpar@128
   873
       << "  } bind def\n";
alpar@128
   874
    
alpar@128
   875
alpar@128
   876
    os << "/arrl " << _arrowLength << " def\n";
alpar@128
   877
    os << "/arrw " << _arrowWidth << " def\n";
alpar@128
   878
    // l dx_norm dy_norm
alpar@128
   879
    os << "/lrl { 2 index mul exch 2 index mul exch rlineto pop} bind def\n";
alpar@128
   880
    //len w dx_norm dy_norm x1 y1 cr cg cb
alpar@128
   881
    os << "/arr { setrgbcolor /y1 exch def /x1 exch def /dy exch def /dx exch def\n"
alpar@128
   882
       << "       /w exch def /len exch def\n"
alpar@128
   883
      //	 << "       0.1 setlinewidth x1 y1 moveto dx len mul dy len mul rlineto stroke"
alpar@128
   884
       << "       newpath x1 dy w 2 div mul add y1 dx w 2 div mul sub moveto\n"
alpar@128
   885
       << "       len w sub arrl sub dx dy lrl\n"
alpar@128
   886
       << "       arrw dy dx neg lrl\n"
alpar@128
   887
       << "       dx arrl w add mul dy w 2 div arrw add mul sub\n"
alpar@128
   888
       << "       dy arrl w add mul dx w 2 div arrw add mul add rlineto\n"
alpar@128
   889
       << "       dx arrl w add mul neg dy w 2 div arrw add mul sub\n"
alpar@128
   890
       << "       dy arrl w add mul neg dx w 2 div arrw add mul add rlineto\n"
alpar@128
   891
       << "       arrw dy dx neg lrl\n"
alpar@128
   892
       << "       len w sub arrl sub neg dx dy lrl\n"
alpar@128
   893
       << "       closepath fill } bind def\n";
alpar@128
   894
    os << "/cshow { 2 index 2 index moveto dup stringwidth pop\n"
alpar@128
   895
       << "         neg 2 div fosi .35 mul neg rmoveto show pop pop} def\n";
alpar@128
   896
alpar@128
   897
    os << "\ngsave\n";
alpar@128
   898
    if(_scaleToA4)
alpar@128
   899
      if(bb.height()>bb.width()) {
alpar@128
   900
	double sc= std::min((A4HEIGHT-2*A4BORDER)/bb.height(),
alpar@128
   901
		  (A4WIDTH-2*A4BORDER)/bb.width());
alpar@128
   902
	os << ((A4WIDTH -2*A4BORDER)-sc*bb.width())/2 + A4BORDER << ' '
alpar@128
   903
	   << ((A4HEIGHT-2*A4BORDER)-sc*bb.height())/2 + A4BORDER
alpar@128
   904
	   << " translate\n"
alpar@128
   905
	   << sc << " dup scale\n"
alpar@128
   906
	   << -bb.left() << ' ' << -bb.bottom() << " translate\n";
alpar@128
   907
      }
alpar@128
   908
      else {
alpar@128
   909
	//\todo Verify centering
alpar@128
   910
	double sc= std::min((A4HEIGHT-2*A4BORDER)/bb.width(),
alpar@128
   911
		  (A4WIDTH-2*A4BORDER)/bb.height());
alpar@128
   912
	os << ((A4WIDTH -2*A4BORDER)-sc*bb.height())/2 + A4BORDER << ' '
alpar@128
   913
	   << ((A4HEIGHT-2*A4BORDER)-sc*bb.width())/2 + A4BORDER 
alpar@128
   914
	   << " translate\n"
alpar@128
   915
	   << sc << " dup scale\n90 rotate\n"
alpar@128
   916
	   << -bb.left() << ' ' << -bb.top() << " translate\n";	
alpar@128
   917
	}
alpar@128
   918
    else if(_scale!=1.0) os << _scale << " dup scale\n";
alpar@128
   919
    
alpar@128
   920
    if(_showArcs) {
alpar@128
   921
      os << "%Arcs:\ngsave\n";      
alpar@128
   922
      if(_enableParallel) {
alpar@128
   923
	std::vector<Arc> el;
alpar@128
   924
	for(ArcIt e(g);e!=INVALID;++e)
alpar@128
   925
	  if((!_undirected||g.source(e)<g.target(e))&&_arcWidths[e]>0
alpar@128
   926
	     &&g.source(e)!=g.target(e))
alpar@128
   927
	    el.push_back(e);
alpar@128
   928
	std::sort(el.begin(),el.end(),arcLess(g));
alpar@128
   929
	
alpar@128
   930
	typename std::vector<Arc>::iterator j;
alpar@128
   931
	for(typename std::vector<Arc>::iterator i=el.begin();i!=el.end();i=j) {
alpar@128
   932
	  for(j=i+1;j!=el.end()&&isParallel(*i,*j);++j) ;
alpar@128
   933
alpar@128
   934
	  double sw=0;
alpar@128
   935
	  for(typename std::vector<Arc>::iterator e=i;e!=j;++e)
alpar@128
   936
	    sw+=_arcWidths[*e]*_arcWidthScale+_parArcDist;
alpar@128
   937
	  sw-=_parArcDist;
alpar@128
   938
	  sw/=-2.0;
alpar@128
   939
	  dim2::Point<double>
alpar@128
   940
	    dvec(mycoords[g.target(*i)]-mycoords[g.source(*i)]);
alpar@128
   941
	  double l=std::sqrt(dvec.normSquare()); 
alpar@133
   942
	  //\todo better 'epsilon' would be nice here.
alpar@128
   943
	  dim2::Point<double> d(dvec/std::max(l,EPSILON));
alpar@128
   944
 	  dim2::Point<double> m;
alpar@128
   945
// 	  m=dim2::Point<double>(mycoords[g.target(*i)]+mycoords[g.source(*i)])/2.0;
alpar@128
   946
alpar@128
   947
//  	  m=dim2::Point<double>(mycoords[g.source(*i)])+
alpar@128
   948
// 	    dvec*(double(_nodeSizes[g.source(*i)])/
alpar@128
   949
// 	       (_nodeSizes[g.source(*i)]+_nodeSizes[g.target(*i)]));
alpar@128
   950
alpar@128
   951
 	  m=dim2::Point<double>(mycoords[g.source(*i)])+
alpar@128
   952
	    d*(l+_nodeSizes[g.source(*i)]-_nodeSizes[g.target(*i)])/2.0;
alpar@128
   953
alpar@128
   954
	  for(typename std::vector<Arc>::iterator e=i;e!=j;++e) {
alpar@128
   955
	    sw+=_arcWidths[*e]*_arcWidthScale/2.0;
alpar@128
   956
	    dim2::Point<double> mm=m+rot90(d)*sw/.75;
alpar@128
   957
	    if(_drawArrows) {
alpar@128
   958
	      int node_shape;
alpar@128
   959
	      dim2::Point<double> s=mycoords[g.source(*e)];
alpar@128
   960
	      dim2::Point<double> t=mycoords[g.target(*e)];
alpar@128
   961
	      double rn=_nodeSizes[g.target(*e)]*_nodeScale;
alpar@128
   962
	      node_shape=_nodeShapes[g.target(*e)];
alpar@128
   963
	      dim2::Bezier3 bez(s,mm,mm,t);
alpar@128
   964
	      double t1=0,t2=1;
alpar@128
   965
	      for(int ii=0;ii<INTERPOL_PREC;++ii)
alpar@128
   966
		if(isInsideNode(bez((t1+t2)/2)-t,rn,node_shape)) t2=(t1+t2)/2;
alpar@128
   967
		else t1=(t1+t2)/2;
alpar@128
   968
	      dim2::Point<double> apoint=bez((t1+t2)/2);
alpar@128
   969
	      rn = _arrowLength+_arcWidths[*e]*_arcWidthScale;
alpar@128
   970
	      rn*=rn;
alpar@128
   971
	      t2=(t1+t2)/2;t1=0;
alpar@128
   972
	      for(int ii=0;ii<INTERPOL_PREC;++ii)
alpar@128
   973
		if((bez((t1+t2)/2)-apoint).normSquare()>rn) t1=(t1+t2)/2;
alpar@128
   974
		else t2=(t1+t2)/2;
alpar@128
   975
	      dim2::Point<double> linend=bez((t1+t2)/2);	      
alpar@128
   976
	      bez=bez.before((t1+t2)/2);
alpar@128
   977
// 	      rn=_nodeSizes[g.source(*e)]*_nodeScale;
alpar@128
   978
// 	      node_shape=_nodeShapes[g.source(*e)];
alpar@128
   979
// 	      t1=0;t2=1;
alpar@128
   980
// 	      for(int i=0;i<INTERPOL_PREC;++i)
alpar@128
   981
// 		if(isInsideNode(bez((t1+t2)/2)-t,rn,node_shape)) t1=(t1+t2)/2;
alpar@128
   982
// 		else t2=(t1+t2)/2;
alpar@128
   983
// 	      bez=bez.after((t1+t2)/2);
alpar@128
   984
	      os << _arcWidths[*e]*_arcWidthScale << " setlinewidth "
alpar@128
   985
		 << _arcColors[*e].red() << ' '
alpar@128
   986
		 << _arcColors[*e].green() << ' '
alpar@128
   987
		 << _arcColors[*e].blue() << " setrgbcolor newpath\n"
alpar@128
   988
		 << bez.p1.x << ' ' <<  bez.p1.y << " moveto\n"
alpar@128
   989
		 << bez.p2.x << ' ' << bez.p2.y << ' '
alpar@128
   990
		 << bez.p3.x << ' ' << bez.p3.y << ' '
alpar@128
   991
		 << bez.p4.x << ' ' << bez.p4.y << " curveto stroke\n";
alpar@128
   992
	      dim2::Point<double> dd(rot90(linend-apoint));
alpar@128
   993
	      dd*=(.5*_arcWidths[*e]*_arcWidthScale+_arrowWidth)/
alpar@128
   994
		std::sqrt(dd.normSquare());
alpar@128
   995
	      os << "newpath " << psOut(apoint) << " moveto "
alpar@128
   996
		 << psOut(linend+dd) << " lineto "
alpar@128
   997
		 << psOut(linend-dd) << " lineto closepath fill\n";
alpar@128
   998
	    }
alpar@128
   999
	    else {
alpar@128
  1000
	      os << mycoords[g.source(*e)].x << ' '
alpar@128
  1001
		 << mycoords[g.source(*e)].y << ' '
alpar@128
  1002
		 << mm.x << ' ' << mm.y << ' '
alpar@128
  1003
		 << mycoords[g.target(*e)].x << ' '
alpar@128
  1004
		 << mycoords[g.target(*e)].y << ' '
alpar@128
  1005
		 << _arcColors[*e].red() << ' '
alpar@128
  1006
		 << _arcColors[*e].green() << ' '
alpar@128
  1007
		 << _arcColors[*e].blue() << ' '
alpar@128
  1008
		 << _arcWidths[*e]*_arcWidthScale << " lb\n";
alpar@128
  1009
	    }
alpar@128
  1010
	    sw+=_arcWidths[*e]*_arcWidthScale/2.0+_parArcDist;
alpar@128
  1011
	  }
alpar@128
  1012
	}
alpar@128
  1013
      }
alpar@128
  1014
      else for(ArcIt e(g);e!=INVALID;++e)
alpar@128
  1015
	if((!_undirected||g.source(e)<g.target(e))&&_arcWidths[e]>0
alpar@128
  1016
	   &&g.source(e)!=g.target(e))
alpar@128
  1017
	  if(_drawArrows) {
alpar@128
  1018
	    dim2::Point<double> d(mycoords[g.target(e)]-mycoords[g.source(e)]);
alpar@128
  1019
	    double rn=_nodeSizes[g.target(e)]*_nodeScale;
alpar@128
  1020
	    int node_shape=_nodeShapes[g.target(e)];
alpar@128
  1021
	    double t1=0,t2=1;
alpar@128
  1022
	    for(int i=0;i<INTERPOL_PREC;++i)
alpar@128
  1023
	      if(isInsideNode((-(t1+t2)/2)*d,rn,node_shape)) t1=(t1+t2)/2;
alpar@128
  1024
	      else t2=(t1+t2)/2;
alpar@128
  1025
	    double l=std::sqrt(d.normSquare());
alpar@128
  1026
	    d/=l;
alpar@128
  1027
	    
alpar@128
  1028
	    os << l*(1-(t1+t2)/2) << ' '
alpar@128
  1029
	       << _arcWidths[e]*_arcWidthScale << ' '
alpar@128
  1030
	       << d.x << ' ' << d.y << ' '
alpar@128
  1031
	       << mycoords[g.source(e)].x << ' '
alpar@128
  1032
	       << mycoords[g.source(e)].y << ' '
alpar@128
  1033
	       << _arcColors[e].red() << ' '
alpar@128
  1034
	       << _arcColors[e].green() << ' '
alpar@128
  1035
	       << _arcColors[e].blue() << " arr\n";
alpar@128
  1036
	  }
alpar@128
  1037
	  else os << mycoords[g.source(e)].x << ' '
alpar@128
  1038
		  << mycoords[g.source(e)].y << ' '
alpar@128
  1039
		  << mycoords[g.target(e)].x << ' '
alpar@128
  1040
		  << mycoords[g.target(e)].y << ' '
alpar@128
  1041
		  << _arcColors[e].red() << ' '
alpar@128
  1042
		  << _arcColors[e].green() << ' '
alpar@128
  1043
		  << _arcColors[e].blue() << ' '
alpar@128
  1044
		  << _arcWidths[e]*_arcWidthScale << " l\n";
alpar@128
  1045
      os << "grestore\n";
alpar@128
  1046
    }
alpar@128
  1047
    if(_showNodes) {
alpar@128
  1048
      os << "%Nodes:\ngsave\n";
alpar@128
  1049
      for(NodeIt n(g);n!=INVALID;++n) {
alpar@128
  1050
	os << mycoords[n].x << ' ' << mycoords[n].y << ' '
alpar@128
  1051
	   << _nodeSizes[n]*_nodeScale << ' '
alpar@128
  1052
	   << _nodeColors[n].red() << ' '
alpar@128
  1053
	   << _nodeColors[n].green() << ' '
alpar@128
  1054
	   << _nodeColors[n].blue() << ' ';
alpar@128
  1055
	switch(_nodeShapes[n]) {
alpar@128
  1056
	case CIRCLE:
alpar@128
  1057
	  os<< "nc";break;
alpar@128
  1058
	case SQUARE:
alpar@128
  1059
	  os<< "nsq";break;
alpar@128
  1060
	case DIAMOND:
alpar@128
  1061
	  os<< "ndi";break;
alpar@128
  1062
	case MALE:
alpar@128
  1063
	  os<< "nmale";break;
alpar@128
  1064
	case FEMALE:
alpar@128
  1065
	  os<< "nfemale";break;
alpar@128
  1066
	}
alpar@128
  1067
	os<<'\n';
alpar@128
  1068
      }
alpar@128
  1069
      os << "grestore\n";
alpar@128
  1070
    }
alpar@128
  1071
    if(_showNodeText) {
alpar@128
  1072
      os << "%Node texts:\ngsave\n";
alpar@128
  1073
      os << "/fosi " << _nodeTextSize << " def\n";
alpar@128
  1074
      os << "(Helvetica) findfont fosi scalefont setfont\n";
alpar@128
  1075
      for(NodeIt n(g);n!=INVALID;++n) {
alpar@128
  1076
	switch(_nodeTextColorType) {
alpar@128
  1077
	case DIST_COL:
alpar@128
  1078
	  os << psOut(distantColor(_nodeColors[n])) << " setrgbcolor\n";
alpar@128
  1079
	  break;
alpar@128
  1080
	case DIST_BW:
alpar@128
  1081
	  os << psOut(distantBW(_nodeColors[n])) << " setrgbcolor\n";
alpar@128
  1082
	  break;
alpar@128
  1083
	case CUST_COL:
alpar@128
  1084
	  os << psOut(distantColor(_nodeTextColors[n])) << " setrgbcolor\n";
alpar@128
  1085
	  break;
alpar@128
  1086
	default:
alpar@128
  1087
	  os << "0 0 0 setrgbcolor\n";
alpar@128
  1088
	}
alpar@128
  1089
	os << mycoords[n].x << ' ' << mycoords[n].y
alpar@128
  1090
	   << " (" << _nodeTexts[n] << ") cshow\n";
alpar@128
  1091
      }
alpar@128
  1092
      os << "grestore\n";
alpar@128
  1093
    }
alpar@128
  1094
    if(_showNodePsText) {
alpar@128
  1095
      os << "%Node PS blocks:\ngsave\n";
alpar@128
  1096
      for(NodeIt n(g);n!=INVALID;++n)
alpar@128
  1097
	os << mycoords[n].x << ' ' << mycoords[n].y
alpar@128
  1098
	   << " moveto\n" << _nodePsTexts[n] << "\n";
alpar@128
  1099
      os << "grestore\n";
alpar@128
  1100
    }
alpar@128
  1101
    
alpar@128
  1102
    os << "grestore\nshowpage\n";
alpar@128
  1103
alpar@128
  1104
    //CleanUp:
alpar@128
  1105
    if(_pleaseRemoveOsStream) {delete &os;}
alpar@130
  1106
  }
alpar@130
  1107
alpar@130
  1108
  ///\name Aliases
alpar@130
  1109
  ///These are just some aliases to other parameter setting functions.
alpar@130
  1110
alpar@130
  1111
  ///@{
alpar@130
  1112
alpar@130
  1113
  ///An alias for arcWidths()
alpar@130
  1114
alpar@130
  1115
  ///An alias for arcWidths()
alpar@130
  1116
  ///
alpar@130
  1117
  template<class X> GraphToEps<ArcWidthsTraits<X> > edgeWidths(const X &x)
alpar@130
  1118
  {
alpar@130
  1119
    return arcWidths(x);
alpar@130
  1120
  }
alpar@130
  1121
alpar@130
  1122
  ///An alias for arcColors()
alpar@130
  1123
alpar@130
  1124
  ///An alias for arcColors()
alpar@130
  1125
  ///
alpar@130
  1126
  template<class X> GraphToEps<ArcColorsTraits<X> >
alpar@130
  1127
  edgeColors(const X &x)
alpar@130
  1128
  {
alpar@130
  1129
    return arcColors(x);
alpar@130
  1130
  }
alpar@130
  1131
alpar@130
  1132
  ///An alias for arcWidthScale()
alpar@130
  1133
alpar@130
  1134
  ///An alias for arcWidthScale()
alpar@130
  1135
  ///
alpar@130
  1136
  GraphToEps<T> &edgeWidthScale(double d) {return arcWidthScale(d);}
alpar@130
  1137
alpar@130
  1138
  ///An alias for autoArcWidthScale()
alpar@130
  1139
alpar@130
  1140
  ///An alias for autoArcWidthScale()
alpar@130
  1141
  ///
alpar@130
  1142
  GraphToEps<T> &autoEdgeWidthScale(bool b=true)
alpar@130
  1143
  {
alpar@130
  1144
    return autoArcWidthScale(b);
alpar@130
  1145
  }
alpar@130
  1146
  
alpar@130
  1147
  ///An alias for absoluteArcWidths()
alpar@130
  1148
alpar@130
  1149
  ///An alias for absoluteArcWidths()
alpar@130
  1150
  ///
alpar@130
  1151
  GraphToEps<T> &absoluteEdgeWidths(bool b=true)
alpar@130
  1152
  {
alpar@130
  1153
    return absoluteArcWidths(b);
alpar@130
  1154
  }
alpar@130
  1155
  
alpar@130
  1156
  ///An alias for parArcDist()
alpar@130
  1157
alpar@130
  1158
  ///An alias for parArcDist()
alpar@130
  1159
  ///
alpar@130
  1160
  GraphToEps<T> &parEdgeDist(double d) {return parArcDist(d);}
alpar@130
  1161
  
alpar@130
  1162
  ///An alias for hideArcs()
alpar@130
  1163
  
alpar@130
  1164
  ///An alias for hideArcs()
alpar@130
  1165
  ///
alpar@130
  1166
  GraphToEps<T> &hideEdges(bool b=true) {return hideArcs(b);}
alpar@130
  1167
alpar@130
  1168
  ///@}
alpar@128
  1169
};
alpar@128
  1170
alpar@128
  1171
template<class T>
alpar@128
  1172
const int GraphToEps<T>::INTERPOL_PREC = 20;
alpar@128
  1173
template<class T>
alpar@128
  1174
const double GraphToEps<T>::A4HEIGHT = 841.8897637795276;
alpar@128
  1175
template<class T>
alpar@128
  1176
const double GraphToEps<T>::A4WIDTH  = 595.275590551181;
alpar@128
  1177
template<class T>
alpar@128
  1178
const double GraphToEps<T>::A4BORDER = 15;
alpar@128
  1179
alpar@128
  1180
alpar@128
  1181
///Generates an EPS file from a graph
alpar@128
  1182
alpar@128
  1183
///\ingroup eps_io
alpar@128
  1184
///Generates an EPS file from a graph.
alpar@128
  1185
///\param g is a reference to the graph to be printed
alpar@128
  1186
///\param os is a reference to the output stream.
alpar@128
  1187
///By default it is <tt>std::cout</tt>
alpar@128
  1188
///
alpar@128
  1189
///This function also has a lot of
alpar@128
  1190
///\ref named-templ-func-param "named parameters",
alpar@128
  1191
///they are declared as the members of class \ref GraphToEps. The following
alpar@128
  1192
///example shows how to use these parameters.
alpar@128
  1193
///\code
alpar@128
  1194
/// graphToEps(g,os).scale(10).coords(coords)
alpar@128
  1195
///              .nodeScale(2).nodeSizes(sizes)
alpar@128
  1196
///              .arcWidthScale(.4).run();
alpar@128
  1197
///\endcode
alpar@128
  1198
///\warning Don't forget to put the \ref GraphToEps::run() "run()"
alpar@128
  1199
///to the end of the parameter list.
alpar@128
  1200
///\sa GraphToEps
alpar@128
  1201
///\sa graphToEps(G &g, const char *file_name)
alpar@128
  1202
template<class G>
alpar@128
  1203
GraphToEps<DefaultGraphToEpsTraits<G> > 
alpar@128
  1204
graphToEps(G &g, std::ostream& os=std::cout)
alpar@128
  1205
{
alpar@128
  1206
  return 
alpar@128
  1207
    GraphToEps<DefaultGraphToEpsTraits<G> >(DefaultGraphToEpsTraits<G>(g,os));
alpar@128
  1208
}
alpar@128
  1209
 
alpar@128
  1210
///Generates an EPS file from a graph
alpar@128
  1211
alpar@128
  1212
///\ingroup eps_io
alpar@128
  1213
///This function does the same as
alpar@128
  1214
///\ref graphToEps(G &g,std::ostream& os)
alpar@128
  1215
///but it writes its output into the file \c file_name
alpar@128
  1216
///instead of a stream.
alpar@128
  1217
///\sa graphToEps(G &g, std::ostream& os)
alpar@128
  1218
template<class G>
alpar@128
  1219
GraphToEps<DefaultGraphToEpsTraits<G> > 
alpar@128
  1220
graphToEps(G &g,const char *file_name)
alpar@128
  1221
{
alpar@128
  1222
  return GraphToEps<DefaultGraphToEpsTraits<G> >
alpar@128
  1223
    (DefaultGraphToEpsTraits<G>(g,*new std::ofstream(file_name),true));
alpar@128
  1224
}
alpar@128
  1225
alpar@128
  1226
///Generates an EPS file from a graph
alpar@128
  1227
alpar@128
  1228
///\ingroup eps_io
alpar@128
  1229
///This function does the same as
alpar@128
  1230
///\ref graphToEps(G &g,std::ostream& os)
alpar@128
  1231
///but it writes its output into the file \c file_name
alpar@128
  1232
///instead of a stream.
alpar@128
  1233
///\sa graphToEps(G &g, std::ostream& os)
alpar@128
  1234
template<class G>
alpar@128
  1235
GraphToEps<DefaultGraphToEpsTraits<G> > 
alpar@128
  1236
graphToEps(G &g,const std::string& file_name)
alpar@128
  1237
{
alpar@128
  1238
  return GraphToEps<DefaultGraphToEpsTraits<G> >
alpar@128
  1239
    (DefaultGraphToEpsTraits<G>(g,*new std::ofstream(file_name.c_str()),true));
alpar@128
  1240
}
alpar@128
  1241
alpar@128
  1242
} //END OF NAMESPACE LEMON
alpar@128
  1243
alpar@128
  1244
#endif // LEMON_GRAPH_TO_EPS_H