COIN-OR::LEMON - Graph Library

source: lemon-1.2/lemon/graph_to_eps.h @ 132:50ff949140fa

Last change on this file since 132:50ff949140fa was 132:50ff949140fa, checked in by Alpar Juttner <alpar@…>, 12 years ago

Scale the node sizes and arc widths in a more sensible way

File size: 37.1 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#ifndef LEMON_GRAPH_TO_EPS_H
20#define LEMON_GRAPH_TO_EPS_H
21
22#include <sys/time.h>
23
24#ifdef WIN32
25#include <lemon/bits/mingw32_time.h>
26#endif
27
28#include<iostream>
29#include<fstream>
30#include<sstream>
31#include<algorithm>
32#include<vector>
33
34#include<ctime>
35
36#include<lemon/math.h>
37#include<lemon/bits/invalid.h>
38#include<lemon/dim2.h>
39#include<lemon/maps.h>
40#include<lemon/color.h>
41#include<lemon/bits/bezier.h>
42
43
44///\ingroup eps_io
45///\file
46///\brief Simple graph drawer
47///
48///\author Alpar Juttner
49
50namespace lemon {
51
52  namespace _graph_to_eps_bits {
53    template<class MT>
54    class _NegY {
55    public:
56      typedef typename MT::Key Key;
57      typedef typename MT::Value Value;
58      const MT &map;
59      int yscale;
60      _NegY(const MT &m,bool b) : map(m), yscale(1-b*2) {}
61      Value operator[](Key n) { return Value(map[n].x,map[n].y*yscale);}
62    };
63  }
64 
65///Default traits class of \ref GraphToEps
66
67///Default traits class of \ref GraphToEps
68///
69///\c G is the type of the underlying graph.
70template<class G>
71struct DefaultGraphToEpsTraits
72{
73  typedef G Graph;
74  typedef typename Graph::Node Node;
75  typedef typename Graph::NodeIt NodeIt;
76  typedef typename Graph::Arc Arc;
77  typedef typename Graph::ArcIt ArcIt;
78  typedef typename Graph::InArcIt InArcIt;
79  typedef typename Graph::OutArcIt OutArcIt;
80 
81
82  const Graph &g;
83
84  std::ostream& os;
85 
86  typedef ConstMap<typename Graph::Node,dim2::Point<double> > CoordsMapType;
87  CoordsMapType _coords;
88  ConstMap<typename Graph::Node,double > _nodeSizes;
89  ConstMap<typename Graph::Node,int > _nodeShapes;
90
91  ConstMap<typename Graph::Node,Color > _nodeColors;
92  ConstMap<typename Graph::Arc,Color > _arcColors;
93
94  ConstMap<typename Graph::Arc,double > _arcWidths;
95
96  double _arcWidthScale;
97 
98  double _nodeScale;
99  double _xBorder, _yBorder;
100  double _scale;
101  double _nodeBorderQuotient;
102 
103  bool _drawArrows;
104  double _arrowLength, _arrowWidth;
105 
106  bool _showNodes, _showArcs;
107
108  bool _enableParallel;
109  double _parArcDist;
110
111  bool _showNodeText;
112  ConstMap<typename Graph::Node,bool > _nodeTexts; 
113  double _nodeTextSize;
114
115  bool _showNodePsText;
116  ConstMap<typename Graph::Node,bool > _nodePsTexts; 
117  char *_nodePsTextsPreamble;
118 
119  bool _undirected;
120
121  bool _pleaseRemoveOsStream;
122
123  bool _scaleToA4;
124
125  std::string _title;
126  std::string _copyright;
127
128  enum NodeTextColorType
129    { DIST_COL=0, DIST_BW=1, CUST_COL=2, SAME_COL=3 } _nodeTextColorType;
130  ConstMap<typename Graph::Node,Color > _nodeTextColors;
131
132  bool _autoNodeScale;
133  bool _autoArcWidthScale;
134
135  bool _absoluteNodeSizes;
136  bool _absoluteArcWidths;
137
138  bool _negY;
139
140  bool _preScale;
141  ///Constructor
142
143  ///Constructor
144  ///\param _g is a reference to the graph to be printed
145  ///\param _os is a reference to the output stream.
146  ///\param _os is a reference to the output stream.
147  ///\param _pros If it is \c true, then the \c ostream referenced by \c _os
148  ///will be explicitly deallocated by the destructor.
149  ///By default it is <tt>std::cout</tt>
150  DefaultGraphToEpsTraits(const G &_g,std::ostream& _os=std::cout,
151                          bool _pros=false) :
152    g(_g), os(_os),
153    _coords(dim2::Point<double>(1,1)), _nodeSizes(1), _nodeShapes(0),
154    _nodeColors(WHITE), _arcColors(BLACK),
155    _arcWidths(1.0), _arcWidthScale(0.003),
156    _nodeScale(.01), _xBorder(10), _yBorder(10), _scale(1.0),
157    _nodeBorderQuotient(.1),
158    _drawArrows(false), _arrowLength(1), _arrowWidth(0.3),
159    _showNodes(true), _showArcs(true),
160    _enableParallel(false), _parArcDist(1),
161    _showNodeText(false), _nodeTexts(false), _nodeTextSize(1),
162    _showNodePsText(false), _nodePsTexts(false), _nodePsTextsPreamble(0),
163    _undirected(lemon::UndirectedTagIndicator<G>::value),
164    _pleaseRemoveOsStream(_pros), _scaleToA4(false),
165    _nodeTextColorType(SAME_COL), _nodeTextColors(BLACK),
166    _autoNodeScale(false),
167    _autoArcWidthScale(false),
168    _absoluteNodeSizes(false),
169    _absoluteArcWidths(false),
170    _negY(false),
171    _preScale(true)
172  {}
173};
174
175///Helper class to implement the named parameters of \ref graphToEps()
176
177///Helper class to implement the named parameters of \ref graphToEps()
178///\todo Is 'helper class' a good name for this?
179///
180///\todo Follow PostScript's DSC.
181/// Use own dictionary.
182///\todo Useful new features.
183/// - Linestyles: dotted, dashed etc.
184/// - A second color and percent value for the lines.
185template<class T> class GraphToEps : public T
186{
187  // Can't believe it is required by the C++ standard
188  using T::g;
189  using T::os;
190
191  using T::_coords;
192  using T::_nodeSizes;
193  using T::_nodeShapes;
194  using T::_nodeColors;
195  using T::_arcColors;
196  using T::_arcWidths;
197
198  using T::_arcWidthScale;
199  using T::_nodeScale;
200  using T::_xBorder;
201  using T::_yBorder;
202  using T::_scale;
203  using T::_nodeBorderQuotient;
204 
205  using T::_drawArrows;
206  using T::_arrowLength;
207  using T::_arrowWidth;
208 
209  using T::_showNodes;
210  using T::_showArcs;
211
212  using T::_enableParallel;
213  using T::_parArcDist;
214
215  using T::_showNodeText;
216  using T::_nodeTexts; 
217  using T::_nodeTextSize;
218
219  using T::_showNodePsText;
220  using T::_nodePsTexts; 
221  using T::_nodePsTextsPreamble;
222 
223  using T::_undirected;
224
225  using T::_pleaseRemoveOsStream;
226
227  using T::_scaleToA4;
228
229  using T::_title;
230  using T::_copyright;
231
232  using T::NodeTextColorType;
233  using T::CUST_COL;
234  using T::DIST_COL;
235  using T::DIST_BW;
236  using T::_nodeTextColorType;
237  using T::_nodeTextColors;
238
239  using T::_autoNodeScale;
240  using T::_autoArcWidthScale;
241
242  using T::_absoluteNodeSizes;
243  using T::_absoluteArcWidths;
244
245
246  using T::_negY;
247  using T::_preScale;
248
249  // dradnats ++C eht yb deriuqer si ti eveileb t'naC
250
251  typedef typename T::Graph Graph;
252  typedef typename Graph::Node Node;
253  typedef typename Graph::NodeIt NodeIt;
254  typedef typename Graph::Arc Arc;
255  typedef typename Graph::ArcIt ArcIt;
256  typedef typename Graph::InArcIt InArcIt;
257  typedef typename Graph::OutArcIt OutArcIt;
258
259  static const int INTERPOL_PREC;
260  static const double A4HEIGHT;
261  static const double A4WIDTH;
262  static const double A4BORDER;
263
264  bool dontPrint;
265
266public:
267  ///Node shapes
268
269  ///Node shapes
270  ///
271  enum NodeShapes {
272    /// = 0
273    ///\image html nodeshape_0.png
274    ///\image latex nodeshape_0.eps "CIRCLE shape (0)" width=2cm
275    CIRCLE=0,
276    /// = 1
277    ///\image html nodeshape_1.png
278    ///\image latex nodeshape_1.eps "SQUARE shape (1)" width=2cm
279    ///
280    SQUARE=1,
281    /// = 2
282    ///\image html nodeshape_2.png
283    ///\image latex nodeshape_2.eps "DIAMOND shape (2)" width=2cm
284    ///
285    DIAMOND=2,
286    /// = 3
287    ///\image html nodeshape_3.png
288    ///\image latex nodeshape_2.eps "MALE shape (4)" width=2cm
289    ///
290    MALE=3,
291    /// = 4
292    ///\image html nodeshape_4.png
293    ///\image latex nodeshape_2.eps "FEMALE shape (4)" width=2cm
294    ///
295    FEMALE=4
296  };
297
298private:
299  class arcLess {
300    const Graph &g;
301  public:
302    arcLess(const Graph &_g) : g(_g) {}
303    bool operator()(Arc a,Arc b) const
304    {
305      Node ai=std::min(g.source(a),g.target(a));
306      Node aa=std::max(g.source(a),g.target(a));
307      Node bi=std::min(g.source(b),g.target(b));
308      Node ba=std::max(g.source(b),g.target(b));
309      return ai<bi ||
310        (ai==bi && (aa < ba ||
311                    (aa==ba && ai==g.source(a) && bi==g.target(b))));
312    }
313  };
314  bool isParallel(Arc e,Arc f) const
315  {
316    return (g.source(e)==g.source(f)&&
317            g.target(e)==g.target(f)) ||
318      (g.source(e)==g.target(f)&&
319       g.target(e)==g.source(f));
320  }
321  template<class TT>
322  static std::string psOut(const dim2::Point<TT> &p)
323    {
324      std::ostringstream os;   
325      os << p.x << ' ' << p.y;
326      return os.str();
327    }
328  static std::string psOut(const Color &c)
329    {
330      std::ostringstream os;   
331      os << c.red() << ' ' << c.green() << ' ' << c.blue();
332      return os.str();
333    }
334 
335public:
336  GraphToEps(const T &t) : T(t), dontPrint(false) {};
337 
338  template<class X> struct CoordsTraits : public T {
339  typedef X CoordsMapType;
340    const X &_coords;
341    CoordsTraits(const T &t,const X &x) : T(t), _coords(x) {}
342  };
343  ///Sets the map of the node coordinates
344
345  ///Sets the map of the node coordinates.
346  ///\param x must be a node map with dim2::Point<double> or
347  ///\ref dim2::Point "dim2::Point<int>" values.
348  template<class X> GraphToEps<CoordsTraits<X> > coords(const X &x) {
349    dontPrint=true;
350    return GraphToEps<CoordsTraits<X> >(CoordsTraits<X>(*this,x));
351  }
352  template<class X> struct NodeSizesTraits : public T {
353    const X &_nodeSizes;
354    NodeSizesTraits(const T &t,const X &x) : T(t), _nodeSizes(x) {}
355  };
356  ///Sets the map of the node sizes
357
358  ///Sets the map of the node sizes
359  ///\param x must be a node map with \c double (or convertible) values.
360  template<class X> GraphToEps<NodeSizesTraits<X> > nodeSizes(const X &x)
361  {
362    dontPrint=true;
363    return GraphToEps<NodeSizesTraits<X> >(NodeSizesTraits<X>(*this,x));
364  }
365  template<class X> struct NodeShapesTraits : public T {
366    const X &_nodeShapes;
367    NodeShapesTraits(const T &t,const X &x) : T(t), _nodeShapes(x) {}
368  };
369  ///Sets the map of the node shapes
370
371  ///Sets the map of the node shapes.
372  ///The availabe shape values
373  ///can be found in \ref NodeShapes "enum NodeShapes".
374  ///\param x must be a node map with \c int (or convertible) values.
375  ///\sa NodeShapes
376  template<class X> GraphToEps<NodeShapesTraits<X> > nodeShapes(const X &x)
377  {
378    dontPrint=true;
379    return GraphToEps<NodeShapesTraits<X> >(NodeShapesTraits<X>(*this,x));
380  }
381  template<class X> struct NodeTextsTraits : public T {
382    const X &_nodeTexts;
383    NodeTextsTraits(const T &t,const X &x) : T(t), _nodeTexts(x) {}
384  };
385  ///Sets the text printed on the nodes
386
387  ///Sets the text printed on the nodes
388  ///\param x must be a node map with type that can be pushed to a standard
389  ///ostream.
390  template<class X> GraphToEps<NodeTextsTraits<X> > nodeTexts(const X &x)
391  {
392    dontPrint=true;
393    _showNodeText=true;
394    return GraphToEps<NodeTextsTraits<X> >(NodeTextsTraits<X>(*this,x));
395  }
396  template<class X> struct NodePsTextsTraits : public T {
397    const X &_nodePsTexts;
398    NodePsTextsTraits(const T &t,const X &x) : T(t), _nodePsTexts(x) {}
399  };
400  ///Inserts a PostScript block to the nodes
401
402  ///With this command it is possible to insert a verbatim PostScript
403  ///block to the nodes.
404  ///The PS current point will be moved to the centre of the node before
405  ///the PostScript block inserted.
406  ///
407  ///Before and after the block a newline character is inserted so you
408  ///don't have to bother with the separators.
409  ///
410  ///\param x must be a node map with type that can be pushed to a standard
411  ///ostream.
412  ///
413  ///\sa nodePsTextsPreamble()
414  ///\todo Offer the choise not to move to the centre but pass the coordinates
415  ///to the Postscript block inserted.
416  template<class X> GraphToEps<NodePsTextsTraits<X> > nodePsTexts(const X &x)
417  {
418    dontPrint=true;
419    _showNodePsText=true;
420    return GraphToEps<NodePsTextsTraits<X> >(NodePsTextsTraits<X>(*this,x));
421  }
422  template<class X> struct ArcWidthsTraits : public T {
423    const X &_arcWidths;
424    ArcWidthsTraits(const T &t,const X &x) : T(t), _arcWidths(x) {}
425  };
426  ///Sets the map of the arc widths
427
428  ///Sets the map of the arc widths
429  ///\param x must be a arc map with \c double (or convertible) values.
430  template<class X> GraphToEps<ArcWidthsTraits<X> > arcWidths(const X &x)
431  {
432    dontPrint=true;
433    return GraphToEps<ArcWidthsTraits<X> >(ArcWidthsTraits<X>(*this,x));
434  }
435
436  template<class X> struct NodeColorsTraits : public T {
437    const X &_nodeColors;
438    NodeColorsTraits(const T &t,const X &x) : T(t), _nodeColors(x) {}
439  };
440  ///Sets the map of the node colors
441
442  ///Sets the map of the node colors
443  ///\param x must be a node map with \ref Color values.
444  ///
445  ///\sa Palette
446  template<class X> GraphToEps<NodeColorsTraits<X> >
447  nodeColors(const X &x)
448  {
449    dontPrint=true;
450    return GraphToEps<NodeColorsTraits<X> >(NodeColorsTraits<X>(*this,x));
451  }
452  template<class X> struct NodeTextColorsTraits : public T {
453    const X &_nodeTextColors;
454    NodeTextColorsTraits(const T &t,const X &x) : T(t), _nodeTextColors(x) {}
455  };
456  ///Sets the map of the node text colors
457
458  ///Sets the map of the node text colors
459  ///\param x must be a node map with \ref Color values.
460  ///
461  ///\sa Palette
462  template<class X> GraphToEps<NodeTextColorsTraits<X> >
463  nodeTextColors(const X &x)
464  {
465    dontPrint=true;
466    _nodeTextColorType=CUST_COL;
467    return GraphToEps<NodeTextColorsTraits<X> >
468      (NodeTextColorsTraits<X>(*this,x));
469  }
470  template<class X> struct ArcColorsTraits : public T {
471    const X &_arcColors;
472    ArcColorsTraits(const T &t,const X &x) : T(t), _arcColors(x) {}
473  };
474  ///Sets the map of the arc colors
475
476  ///Sets the map of the arc colors
477  ///\param x must be a arc map with \ref Color values.
478  ///
479  ///\sa Palette
480  template<class X> GraphToEps<ArcColorsTraits<X> >
481  arcColors(const X &x)
482  {
483    dontPrint=true;
484    return GraphToEps<ArcColorsTraits<X> >(ArcColorsTraits<X>(*this,x));
485  }
486  ///Sets a global scale factor for node sizes
487
488  ///Sets a global scale factor for node sizes.
489  ///
490  /// If nodeSizes() is not given, this function simply sets the node
491  /// sizes to \c d.  If nodeSizes() is given, but
492  /// autoNodeScale() is not, then the node size given by
493  /// nodeSizes() will be multiplied by the value \c d.
494  /// If both nodeSizes() and autoNodeScale() are used, then the
495  /// node sizes will be scaled in such a way that the greatest size will be
496  /// equal to \c d.
497  /// \sa nodeSizes()
498  /// \sa autoNodeScale()
499  GraphToEps<T> &nodeScale(double d=.01) {_nodeScale=d;return *this;}
500  ///Turns on/off the automatic node width scaling.
501
502  ///Turns on/off the automatic node width scaling.
503  ///
504  ///\sa nodeScale()
505  ///
506  GraphToEps<T> &autoNodeScale(bool b=true) {
507    _autoNodeScale=b;return *this;
508  }
509
510  ///Turns on/off the absolutematic node width scaling.
511
512  ///Turns on/off the absolutematic node width scaling.
513  ///
514  ///\sa nodeScale()
515  ///
516  GraphToEps<T> &absoluteNodeSizes(bool b=true) {
517    _absoluteNodeSizes=b;return *this;
518  }
519
520  ///Negates the Y coordinates.
521
522  ///Negates the Y coordinates.
523  ///
524  ///\todo More docs.
525  ///
526  GraphToEps<T> &negateY(bool b=true) {
527    _negY=b;return *this;
528  }
529
530  ///Turn on/off prescaling
531
532  ///By default graphToEps() rescales the whole image in order to avoid
533  ///very big or very small bounding boxes.
534  ///
535  ///This (p)rescaling can be turned off with this function.
536  ///
537  GraphToEps<T> &preScale(bool b=true) {
538    _preScale=b;return *this;
539  }
540
541  ///Sets a global scale factor for arc widths
542
543  /// Sets a global scale factor for arc widths.
544  ///
545  /// If arcWidths() is not given, this function simply sets the arc
546  /// widths to \c d.  If arcWidths() is given, but
547  /// autoArcWidthScale() is not, then the arc withs given by
548  /// arcWidths() will be multiplied by the value \c d.
549  /// If both arcWidths() and autoArcWidthScale() are used, then the
550  /// arc withs will be scaled in such a way that the greatest width will be
551  /// equal to \c d.
552  GraphToEps<T> &arcWidthScale(double d=.003) {_arcWidthScale=d;return *this;}
553  ///Turns on/off the automatic arc width scaling.
554
555  ///Turns on/off the automatic arc width scaling.
556  ///
557  ///\sa arcWidthScale()
558  ///
559  GraphToEps<T> &autoArcWidthScale(bool b=true) {
560    _autoArcWidthScale=b;return *this;
561  }
562  ///Turns on/off the absolutematic arc width scaling.
563
564  ///Turns on/off the absolutematic arc width scaling.
565  ///
566  ///\sa arcWidthScale()
567  ///
568  GraphToEps<T> &absoluteArcWidths(bool b=true) {
569    _absoluteArcWidths=b;return *this;
570  }
571  ///Sets a global scale factor for the whole picture
572
573  ///Sets a global scale factor for the whole picture
574  ///
575
576  GraphToEps<T> &scale(double d) {_scale=d;return *this;}
577  ///Sets the width of the border around the picture
578
579  ///Sets the width of the border around the picture
580  ///
581  GraphToEps<T> &border(double b) {_xBorder=_yBorder=b;return *this;}
582  ///Sets the width of the border around the picture
583
584  ///Sets the width of the border around the picture
585  ///
586  GraphToEps<T> &border(double x, double y) {
587    _xBorder=x;_yBorder=y;return *this;
588  }
589  ///Sets whether to draw arrows
590
591  ///Sets whether to draw arrows
592  ///
593  GraphToEps<T> &drawArrows(bool b=true) {_drawArrows=b;return *this;}
594  ///Sets the length of the arrowheads
595
596  ///Sets the length of the arrowheads
597  ///
598  GraphToEps<T> &arrowLength(double d) {_arrowLength*=d;return *this;}
599  ///Sets the width of the arrowheads
600
601  ///Sets the width of the arrowheads
602  ///
603  GraphToEps<T> &arrowWidth(double d) {_arrowWidth*=d;return *this;}
604 
605  ///Scales the drawing to fit to A4 page
606
607  ///Scales the drawing to fit to A4 page
608  ///
609  GraphToEps<T> &scaleToA4() {_scaleToA4=true;return *this;}
610 
611  ///Enables parallel arcs
612
613  ///Enables parallel arcs
614  GraphToEps<T> &enableParallel(bool b=true) {_enableParallel=b;return *this;}
615 
616  ///Sets the distance
617 
618  ///Sets the distance
619  ///
620  GraphToEps<T> &parArcDist(double d) {_parArcDist*=d;return *this;}
621 
622  ///Hides the arcs
623 
624  ///Hides the arcs
625  ///
626  GraphToEps<T> &hideArcs(bool b=true) {_showArcs=!b;return *this;}
627  ///Hides the nodes
628 
629  ///Hides the nodes
630  ///
631  GraphToEps<T> &hideNodes(bool b=true) {_showNodes=!b;return *this;}
632 
633  ///Sets the size of the node texts
634 
635  ///Sets the size of the node texts
636  ///
637  GraphToEps<T> &nodeTextSize(double d) {_nodeTextSize=d;return *this;}
638
639  ///Sets the color of the node texts to be different from the node color
640
641  ///Sets the color of the node texts to be as different from the node color
642  ///as it is possible
643  ///
644  GraphToEps<T> &distantColorNodeTexts()
645  {_nodeTextColorType=DIST_COL;return *this;}
646  ///Sets the color of the node texts to be black or white and always visible.
647
648  ///Sets the color of the node texts to be black or white according to
649  ///which is more
650  ///different from the node color
651  ///
652  GraphToEps<T> &distantBWNodeTexts()
653  {_nodeTextColorType=DIST_BW;return *this;}
654
655  ///Gives a preamble block for node Postscript block.
656 
657  ///Gives a preamble block for node Postscript block.
658  ///
659  ///\sa nodePsTexts()
660  GraphToEps<T> & nodePsTextsPreamble(const char *str) {
661    _nodePsTextsPreamble=str ;return *this;
662  }
663  ///Sets whether the the graph is undirected
664
665  ///Sets whether the the graph is undirected
666  ///
667  GraphToEps<T> &undirected(bool b=true) {_undirected=b;return *this;}
668
669  ///Sets whether the the graph is directed
670
671  ///Sets whether the the graph is directed.
672  ///Use it to show the edges as a pair of directed ones.
673  GraphToEps<T> &directed(bool b=true) {_undirected=!b;return *this;}
674
675  ///Sets the title.
676
677  ///Sets the title of the generated image,
678  ///namely it inserts a <tt>%%Title:</tt> DSC field to the header of
679  ///the EPS file.
680  GraphToEps<T> &title(const std::string &t) {_title=t;return *this;}
681  ///Sets the copyright statement.
682
683  ///Sets the copyright statement of the generated image,
684  ///namely it inserts a <tt>%%Copyright:</tt> DSC field to the header of
685  ///the EPS file.
686  ///\todo Multiline copyright notice could be supported.
687  GraphToEps<T> &copyright(const std::string &t) {_copyright=t;return *this;}
688
689protected:
690  bool isInsideNode(dim2::Point<double> p, double r,int t)
691  {
692    switch(t) {
693    case CIRCLE:
694    case MALE:
695    case FEMALE:
696      return p.normSquare()<=r*r;
697    case SQUARE:
698      return p.x<=r&&p.x>=-r&&p.y<=r&&p.y>=-r;
699    case DIAMOND:
700      return p.x+p.y<=r && p.x-p.y<=r && -p.x+p.y<=r && -p.x-p.y<=r;
701    }
702    return false;
703  }
704
705public:
706  ~GraphToEps() { }
707 
708  ///Draws the graph.
709
710  ///Like other functions using
711  ///\ref named-templ-func-param "named template parameters",
712  ///this function calles the algorithm itself, i.e. in this case
713  ///it draws the graph.
714  void run() {
715    ///\todo better 'epsilon' would be nice here.
716    const double EPSILON=1e-9;
717    if(dontPrint) return;
718   
719    _graph_to_eps_bits::_NegY<typename T::CoordsMapType>
720      mycoords(_coords,_negY);
721
722    os << "%!PS-Adobe-2.0 EPSF-2.0\n";
723    if(_title.size()>0) os << "%%Title: " << _title << '\n';
724     if(_copyright.size()>0) os << "%%Copyright: " << _copyright << '\n';
725//        << "%%Copyright: XXXX\n"
726    os << "%%Creator: LEMON, graphToEps()\n";
727   
728    {
729      char cbuf[50];
730      timeval tv;
731      gettimeofday(&tv, 0);
732      ctime_r(&tv.tv_sec,cbuf);
733      os << "%%CreationDate: " << cbuf;
734    }
735
736    if (_autoArcWidthScale) {
737      double max_w=0;
738      for(ArcIt e(g);e!=INVALID;++e)
739        max_w=std::max(double(_arcWidths[e]),max_w);
740      ///\todo better 'epsilon' would be nice here.
741      if(max_w>EPSILON) {
742        _arcWidthScale/=max_w;
743      }
744    }
745
746    if (_autoNodeScale) {
747      double max_s=0;
748      for(NodeIt n(g);n!=INVALID;++n)
749        max_s=std::max(double(_nodeSizes[n]),max_s);
750      ///\todo better 'epsilon' would be nice here.
751      if(max_s>EPSILON) {
752        _nodeScale/=max_s;
753      }
754    }
755
756    double diag_len = 1;
757    if(!(_absoluteNodeSizes&&_absoluteArcWidths)) {
758      dim2::BoundingBox<double> bb;
759      for(NodeIt n(g);n!=INVALID;++n) bb.add(mycoords[n]);
760      if (bb.empty()) {
761        bb = dim2::BoundingBox<double>(dim2::Point<double>(0,0));
762      }
763      diag_len = std::sqrt((bb.bottomLeft()-bb.topRight()).normSquare());
764      if(diag_len<EPSILON) diag_len = 1;
765      if(!_absoluteNodeSizes) _nodeScale*=diag_len;
766      if(!_absoluteArcWidths) _arcWidthScale*=diag_len;
767    }
768   
769    dim2::BoundingBox<double> bb;
770    for(NodeIt n(g);n!=INVALID;++n) {
771      double ns=_nodeSizes[n]*_nodeScale;
772      dim2::Point<double> p(ns,ns);
773      switch(_nodeShapes[n]) {
774      case CIRCLE:
775      case SQUARE:
776      case DIAMOND:
777        bb.add(p+mycoords[n]);
778        bb.add(-p+mycoords[n]);
779        break;
780      case MALE:
781        bb.add(-p+mycoords[n]);
782        bb.add(dim2::Point<double>(1.5*ns,1.5*std::sqrt(3.0)*ns)+mycoords[n]);
783        break;
784      case FEMALE:
785        bb.add(p+mycoords[n]);
786        bb.add(dim2::Point<double>(-ns,-3.01*ns)+mycoords[n]);
787        break;
788      }
789    }
790    if (bb.empty()) {
791      bb = dim2::BoundingBox<double>(dim2::Point<double>(0,0));
792    }
793   
794    if(_scaleToA4)
795      os <<"%%BoundingBox: 0 0 596 842\n%%DocumentPaperSizes: a4\n";
796    else {
797      if(_preScale) {
798        //Rescale so that BoundingBox won't be neither to big nor too small.
799        while(bb.height()*_scale>1000||bb.width()*_scale>1000) _scale/=10;
800        while(bb.height()*_scale<100||bb.width()*_scale<100) _scale*=10;
801      }
802     
803      os << "%%BoundingBox: "
804         << int(floor(bb.left()   * _scale - _xBorder)) << ' '
805         << int(floor(bb.bottom() * _scale - _yBorder)) << ' '
806         << int(ceil(bb.right()  * _scale + _xBorder)) << ' '
807         << int(ceil(bb.top()    * _scale + _yBorder)) << '\n';
808    }
809   
810    os << "%%EndComments\n";
811   
812    //x1 y1 x2 y2 x3 y3 cr cg cb w
813    os << "/lb { setlinewidth setrgbcolor newpath moveto\n"
814       << "      4 2 roll 1 index 1 index curveto stroke } bind def\n";
815    os << "/l { setlinewidth setrgbcolor newpath moveto lineto stroke } bind def\n";
816    //x y r
817    os << "/c { newpath dup 3 index add 2 index moveto 0 360 arc closepath } bind def\n";
818    //x y r
819    os << "/sq { newpath 2 index 1 index add 2 index 2 index add moveto\n"
820       << "      2 index 1 index sub 2 index 2 index add lineto\n"
821       << "      2 index 1 index sub 2 index 2 index sub lineto\n"
822       << "      2 index 1 index add 2 index 2 index sub lineto\n"
823       << "      closepath pop pop pop} bind def\n";
824    //x y r
825    os << "/di { newpath 2 index 1 index add 2 index moveto\n"
826       << "      2 index             2 index 2 index add lineto\n"
827       << "      2 index 1 index sub 2 index             lineto\n"
828       << "      2 index             2 index 2 index sub lineto\n"
829       << "      closepath pop pop pop} bind def\n";
830    // x y r cr cg cb
831    os << "/nc { 0 0 0 setrgbcolor 5 index 5 index 5 index c fill\n"
832       << "     setrgbcolor " << 1+_nodeBorderQuotient << " div c fill\n"
833       << "   } bind def\n";
834    os << "/nsq { 0 0 0 setrgbcolor 5 index 5 index 5 index sq fill\n"
835       << "     setrgbcolor " << 1+_nodeBorderQuotient << " div sq fill\n"
836       << "   } bind def\n";
837    os << "/ndi { 0 0 0 setrgbcolor 5 index 5 index 5 index di fill\n"
838       << "     setrgbcolor " << 1+_nodeBorderQuotient << " div di fill\n"
839       << "   } bind def\n";
840    os << "/nfemale { 0 0 0 setrgbcolor 3 index "
841       << _nodeBorderQuotient/(1+_nodeBorderQuotient)
842       << " 1.5 mul mul setlinewidth\n"
843       << "  newpath 5 index 5 index moveto "
844       << "5 index 5 index 5 index 3.01 mul sub\n"
845       << "  lineto 5 index 4 index .7 mul sub 5 index 5 index 2.2 mul sub moveto\n"
846       << "  5 index 4 index .7 mul add 5 index 5 index 2.2 mul sub lineto stroke\n"
847       << "  5 index 5 index 5 index c fill\n"
848       << "  setrgbcolor " << 1+_nodeBorderQuotient << " div c fill\n"
849       << "  } bind def\n";
850    os << "/nmale {\n"
851       << "  0 0 0 setrgbcolor 3 index "
852       << _nodeBorderQuotient/(1+_nodeBorderQuotient)
853       <<" 1.5 mul mul setlinewidth\n"
854       << "  newpath 5 index 5 index moveto\n"
855       << "  5 index 4 index 1 mul 1.5 mul add\n"
856       << "  5 index 5 index 3 sqrt 1.5 mul mul add\n"
857       << "  1 index 1 index lineto\n"
858       << "  1 index 1 index 7 index sub moveto\n"
859       << "  1 index 1 index lineto\n"
860       << "  exch 5 index 3 sqrt .5 mul mul sub exch 5 index .5 mul sub lineto\n"
861       << "  stroke\n"
862       << "  5 index 5 index 5 index c fill\n"
863       << "  setrgbcolor " << 1+_nodeBorderQuotient << " div c fill\n"
864       << "  } bind def\n";
865   
866
867    os << "/arrl " << _arrowLength << " def\n";
868    os << "/arrw " << _arrowWidth << " def\n";
869    // l dx_norm dy_norm
870    os << "/lrl { 2 index mul exch 2 index mul exch rlineto pop} bind def\n";
871    //len w dx_norm dy_norm x1 y1 cr cg cb
872    os << "/arr { setrgbcolor /y1 exch def /x1 exch def /dy exch def /dx exch def\n"
873       << "       /w exch def /len exch def\n"
874      //         << "       0.1 setlinewidth x1 y1 moveto dx len mul dy len mul rlineto stroke"
875       << "       newpath x1 dy w 2 div mul add y1 dx w 2 div mul sub moveto\n"
876       << "       len w sub arrl sub dx dy lrl\n"
877       << "       arrw dy dx neg lrl\n"
878       << "       dx arrl w add mul dy w 2 div arrw add mul sub\n"
879       << "       dy arrl w add mul dx w 2 div arrw add mul add rlineto\n"
880       << "       dx arrl w add mul neg dy w 2 div arrw add mul sub\n"
881       << "       dy arrl w add mul neg dx w 2 div arrw add mul add rlineto\n"
882       << "       arrw dy dx neg lrl\n"
883       << "       len w sub arrl sub neg dx dy lrl\n"
884       << "       closepath fill } bind def\n";
885    os << "/cshow { 2 index 2 index moveto dup stringwidth pop\n"
886       << "         neg 2 div fosi .35 mul neg rmoveto show pop pop} def\n";
887
888    os << "\ngsave\n";
889    if(_scaleToA4)
890      if(bb.height()>bb.width()) {
891        double sc= std::min((A4HEIGHT-2*A4BORDER)/bb.height(),
892                  (A4WIDTH-2*A4BORDER)/bb.width());
893        os << ((A4WIDTH -2*A4BORDER)-sc*bb.width())/2 + A4BORDER << ' '
894           << ((A4HEIGHT-2*A4BORDER)-sc*bb.height())/2 + A4BORDER
895           << " translate\n"
896           << sc << " dup scale\n"
897           << -bb.left() << ' ' << -bb.bottom() << " translate\n";
898      }
899      else {
900        //\todo Verify centering
901        double sc= std::min((A4HEIGHT-2*A4BORDER)/bb.width(),
902                  (A4WIDTH-2*A4BORDER)/bb.height());
903        os << ((A4WIDTH -2*A4BORDER)-sc*bb.height())/2 + A4BORDER << ' '
904           << ((A4HEIGHT-2*A4BORDER)-sc*bb.width())/2 + A4BORDER
905           << " translate\n"
906           << sc << " dup scale\n90 rotate\n"
907           << -bb.left() << ' ' << -bb.top() << " translate\n";
908        }
909    else if(_scale!=1.0) os << _scale << " dup scale\n";
910   
911    if(_showArcs) {
912      os << "%Arcs:\ngsave\n";     
913      if(_enableParallel) {
914        std::vector<Arc> el;
915        for(ArcIt e(g);e!=INVALID;++e)
916          if((!_undirected||g.source(e)<g.target(e))&&_arcWidths[e]>0
917             &&g.source(e)!=g.target(e))
918            el.push_back(e);
919        std::sort(el.begin(),el.end(),arcLess(g));
920       
921        typename std::vector<Arc>::iterator j;
922        for(typename std::vector<Arc>::iterator i=el.begin();i!=el.end();i=j) {
923          for(j=i+1;j!=el.end()&&isParallel(*i,*j);++j) ;
924
925          double sw=0;
926          for(typename std::vector<Arc>::iterator e=i;e!=j;++e)
927            sw+=_arcWidths[*e]*_arcWidthScale+_parArcDist;
928          sw-=_parArcDist;
929          sw/=-2.0;
930          dim2::Point<double>
931            dvec(mycoords[g.target(*i)]-mycoords[g.source(*i)]);
932          double l=std::sqrt(dvec.normSquare());
933          ///\todo better 'epsilon' would be nice here.
934          dim2::Point<double> d(dvec/std::max(l,EPSILON));
935          dim2::Point<double> m;
936//        m=dim2::Point<double>(mycoords[g.target(*i)]+mycoords[g.source(*i)])/2.0;
937
938//        m=dim2::Point<double>(mycoords[g.source(*i)])+
939//          dvec*(double(_nodeSizes[g.source(*i)])/
940//             (_nodeSizes[g.source(*i)]+_nodeSizes[g.target(*i)]));
941
942          m=dim2::Point<double>(mycoords[g.source(*i)])+
943            d*(l+_nodeSizes[g.source(*i)]-_nodeSizes[g.target(*i)])/2.0;
944
945          for(typename std::vector<Arc>::iterator e=i;e!=j;++e) {
946            sw+=_arcWidths[*e]*_arcWidthScale/2.0;
947            dim2::Point<double> mm=m+rot90(d)*sw/.75;
948            if(_drawArrows) {
949              int node_shape;
950              dim2::Point<double> s=mycoords[g.source(*e)];
951              dim2::Point<double> t=mycoords[g.target(*e)];
952              double rn=_nodeSizes[g.target(*e)]*_nodeScale;
953              node_shape=_nodeShapes[g.target(*e)];
954              dim2::Bezier3 bez(s,mm,mm,t);
955              double t1=0,t2=1;
956              for(int ii=0;ii<INTERPOL_PREC;++ii)
957                if(isInsideNode(bez((t1+t2)/2)-t,rn,node_shape)) t2=(t1+t2)/2;
958                else t1=(t1+t2)/2;
959              dim2::Point<double> apoint=bez((t1+t2)/2);
960              rn = _arrowLength+_arcWidths[*e]*_arcWidthScale;
961              rn*=rn;
962              t2=(t1+t2)/2;t1=0;
963              for(int ii=0;ii<INTERPOL_PREC;++ii)
964                if((bez((t1+t2)/2)-apoint).normSquare()>rn) t1=(t1+t2)/2;
965                else t2=(t1+t2)/2;
966              dim2::Point<double> linend=bez((t1+t2)/2);             
967              bez=bez.before((t1+t2)/2);
968//            rn=_nodeSizes[g.source(*e)]*_nodeScale;
969//            node_shape=_nodeShapes[g.source(*e)];
970//            t1=0;t2=1;
971//            for(int i=0;i<INTERPOL_PREC;++i)
972//              if(isInsideNode(bez((t1+t2)/2)-t,rn,node_shape)) t1=(t1+t2)/2;
973//              else t2=(t1+t2)/2;
974//            bez=bez.after((t1+t2)/2);
975              os << _arcWidths[*e]*_arcWidthScale << " setlinewidth "
976                 << _arcColors[*e].red() << ' '
977                 << _arcColors[*e].green() << ' '
978                 << _arcColors[*e].blue() << " setrgbcolor newpath\n"
979                 << bez.p1.x << ' ' <<  bez.p1.y << " moveto\n"
980                 << bez.p2.x << ' ' << bez.p2.y << ' '
981                 << bez.p3.x << ' ' << bez.p3.y << ' '
982                 << bez.p4.x << ' ' << bez.p4.y << " curveto stroke\n";
983              dim2::Point<double> dd(rot90(linend-apoint));
984              dd*=(.5*_arcWidths[*e]*_arcWidthScale+_arrowWidth)/
985                std::sqrt(dd.normSquare());
986              os << "newpath " << psOut(apoint) << " moveto "
987                 << psOut(linend+dd) << " lineto "
988                 << psOut(linend-dd) << " lineto closepath fill\n";
989            }
990            else {
991              os << mycoords[g.source(*e)].x << ' '
992                 << mycoords[g.source(*e)].y << ' '
993                 << mm.x << ' ' << mm.y << ' '
994                 << mycoords[g.target(*e)].x << ' '
995                 << mycoords[g.target(*e)].y << ' '
996                 << _arcColors[*e].red() << ' '
997                 << _arcColors[*e].green() << ' '
998                 << _arcColors[*e].blue() << ' '
999                 << _arcWidths[*e]*_arcWidthScale << " lb\n";
1000            }
1001            sw+=_arcWidths[*e]*_arcWidthScale/2.0+_parArcDist;
1002          }
1003        }
1004      }
1005      else for(ArcIt e(g);e!=INVALID;++e)
1006        if((!_undirected||g.source(e)<g.target(e))&&_arcWidths[e]>0
1007           &&g.source(e)!=g.target(e))
1008          if(_drawArrows) {
1009            dim2::Point<double> d(mycoords[g.target(e)]-mycoords[g.source(e)]);
1010            double rn=_nodeSizes[g.target(e)]*_nodeScale;
1011            int node_shape=_nodeShapes[g.target(e)];
1012            double t1=0,t2=1;
1013            for(int i=0;i<INTERPOL_PREC;++i)
1014              if(isInsideNode((-(t1+t2)/2)*d,rn,node_shape)) t1=(t1+t2)/2;
1015              else t2=(t1+t2)/2;
1016            double l=std::sqrt(d.normSquare());
1017            d/=l;
1018           
1019            os << l*(1-(t1+t2)/2) << ' '
1020               << _arcWidths[e]*_arcWidthScale << ' '
1021               << d.x << ' ' << d.y << ' '
1022               << mycoords[g.source(e)].x << ' '
1023               << mycoords[g.source(e)].y << ' '
1024               << _arcColors[e].red() << ' '
1025               << _arcColors[e].green() << ' '
1026               << _arcColors[e].blue() << " arr\n";
1027          }
1028          else os << mycoords[g.source(e)].x << ' '
1029                  << mycoords[g.source(e)].y << ' '
1030                  << mycoords[g.target(e)].x << ' '
1031                  << mycoords[g.target(e)].y << ' '
1032                  << _arcColors[e].red() << ' '
1033                  << _arcColors[e].green() << ' '
1034                  << _arcColors[e].blue() << ' '
1035                  << _arcWidths[e]*_arcWidthScale << " l\n";
1036      os << "grestore\n";
1037    }
1038    if(_showNodes) {
1039      os << "%Nodes:\ngsave\n";
1040      for(NodeIt n(g);n!=INVALID;++n) {
1041        os << mycoords[n].x << ' ' << mycoords[n].y << ' '
1042           << _nodeSizes[n]*_nodeScale << ' '
1043           << _nodeColors[n].red() << ' '
1044           << _nodeColors[n].green() << ' '
1045           << _nodeColors[n].blue() << ' ';
1046        switch(_nodeShapes[n]) {
1047        case CIRCLE:
1048          os<< "nc";break;
1049        case SQUARE:
1050          os<< "nsq";break;
1051        case DIAMOND:
1052          os<< "ndi";break;
1053        case MALE:
1054          os<< "nmale";break;
1055        case FEMALE:
1056          os<< "nfemale";break;
1057        }
1058        os<<'\n';
1059      }
1060      os << "grestore\n";
1061    }
1062    if(_showNodeText) {
1063      os << "%Node texts:\ngsave\n";
1064      os << "/fosi " << _nodeTextSize << " def\n";
1065      os << "(Helvetica) findfont fosi scalefont setfont\n";
1066      for(NodeIt n(g);n!=INVALID;++n) {
1067        switch(_nodeTextColorType) {
1068        case DIST_COL:
1069          os << psOut(distantColor(_nodeColors[n])) << " setrgbcolor\n";
1070          break;
1071        case DIST_BW:
1072          os << psOut(distantBW(_nodeColors[n])) << " setrgbcolor\n";
1073          break;
1074        case CUST_COL:
1075          os << psOut(distantColor(_nodeTextColors[n])) << " setrgbcolor\n";
1076          break;
1077        default:
1078          os << "0 0 0 setrgbcolor\n";
1079        }
1080        os << mycoords[n].x << ' ' << mycoords[n].y
1081           << " (" << _nodeTexts[n] << ") cshow\n";
1082      }
1083      os << "grestore\n";
1084    }
1085    if(_showNodePsText) {
1086      os << "%Node PS blocks:\ngsave\n";
1087      for(NodeIt n(g);n!=INVALID;++n)
1088        os << mycoords[n].x << ' ' << mycoords[n].y
1089           << " moveto\n" << _nodePsTexts[n] << "\n";
1090      os << "grestore\n";
1091    }
1092   
1093    os << "grestore\nshowpage\n";
1094
1095    //CleanUp:
1096    if(_pleaseRemoveOsStream) {delete &os;}
1097  }
1098
1099  ///\name Aliases
1100  ///These are just some aliases to other parameter setting functions.
1101
1102  ///@{
1103
1104  ///An alias for arcWidths()
1105
1106  ///An alias for arcWidths()
1107  ///
1108  template<class X> GraphToEps<ArcWidthsTraits<X> > edgeWidths(const X &x)
1109  {
1110    return arcWidths(x);
1111  }
1112
1113  ///An alias for arcColors()
1114
1115  ///An alias for arcColors()
1116  ///
1117  template<class X> GraphToEps<ArcColorsTraits<X> >
1118  edgeColors(const X &x)
1119  {
1120    return arcColors(x);
1121  }
1122
1123  ///An alias for arcWidthScale()
1124
1125  ///An alias for arcWidthScale()
1126  ///
1127  GraphToEps<T> &edgeWidthScale(double d) {return arcWidthScale(d);}
1128
1129  ///An alias for autoArcWidthScale()
1130
1131  ///An alias for autoArcWidthScale()
1132  ///
1133  GraphToEps<T> &autoEdgeWidthScale(bool b=true)
1134  {
1135    return autoArcWidthScale(b);
1136  }
1137 
1138  ///An alias for absoluteArcWidths()
1139
1140  ///An alias for absoluteArcWidths()
1141  ///
1142  GraphToEps<T> &absoluteEdgeWidths(bool b=true)
1143  {
1144    return absoluteArcWidths(b);
1145  }
1146 
1147  ///An alias for parArcDist()
1148
1149  ///An alias for parArcDist()
1150  ///
1151  GraphToEps<T> &parEdgeDist(double d) {return parArcDist(d);}
1152 
1153  ///An alias for hideArcs()
1154 
1155  ///An alias for hideArcs()
1156  ///
1157  GraphToEps<T> &hideEdges(bool b=true) {return hideArcs(b);}
1158
1159  ///@}
1160};
1161
1162template<class T>
1163const int GraphToEps<T>::INTERPOL_PREC = 20;
1164template<class T>
1165const double GraphToEps<T>::A4HEIGHT = 841.8897637795276;
1166template<class T>
1167const double GraphToEps<T>::A4WIDTH  = 595.275590551181;
1168template<class T>
1169const double GraphToEps<T>::A4BORDER = 15;
1170
1171
1172///Generates an EPS file from a graph
1173
1174///\ingroup eps_io
1175///Generates an EPS file from a graph.
1176///\param g is a reference to the graph to be printed
1177///\param os is a reference to the output stream.
1178///By default it is <tt>std::cout</tt>
1179///
1180///This function also has a lot of
1181///\ref named-templ-func-param "named parameters",
1182///they are declared as the members of class \ref GraphToEps. The following
1183///example shows how to use these parameters.
1184///\code
1185/// graphToEps(g,os).scale(10).coords(coords)
1186///              .nodeScale(2).nodeSizes(sizes)
1187///              .arcWidthScale(.4).run();
1188///\endcode
1189///\warning Don't forget to put the \ref GraphToEps::run() "run()"
1190///to the end of the parameter list.
1191///\sa GraphToEps
1192///\sa graphToEps(G &g, const char *file_name)
1193template<class G>
1194GraphToEps<DefaultGraphToEpsTraits<G> >
1195graphToEps(G &g, std::ostream& os=std::cout)
1196{
1197  return
1198    GraphToEps<DefaultGraphToEpsTraits<G> >(DefaultGraphToEpsTraits<G>(g,os));
1199}
1200 
1201///Generates an EPS file from a graph
1202
1203///\ingroup eps_io
1204///This function does the same as
1205///\ref graphToEps(G &g,std::ostream& os)
1206///but it writes its output into the file \c file_name
1207///instead of a stream.
1208///\sa graphToEps(G &g, std::ostream& os)
1209template<class G>
1210GraphToEps<DefaultGraphToEpsTraits<G> >
1211graphToEps(G &g,const char *file_name)
1212{
1213  return GraphToEps<DefaultGraphToEpsTraits<G> >
1214    (DefaultGraphToEpsTraits<G>(g,*new std::ofstream(file_name),true));
1215}
1216
1217///Generates an EPS file from a graph
1218
1219///\ingroup eps_io
1220///This function does the same as
1221///\ref graphToEps(G &g,std::ostream& os)
1222///but it writes its output into the file \c file_name
1223///instead of a stream.
1224///\sa graphToEps(G &g, std::ostream& os)
1225template<class G>
1226GraphToEps<DefaultGraphToEpsTraits<G> >
1227graphToEps(G &g,const std::string& file_name)
1228{
1229  return GraphToEps<DefaultGraphToEpsTraits<G> >
1230    (DefaultGraphToEpsTraits<G>(g,*new std::ofstream(file_name.c_str()),true));
1231}
1232
1233} //END OF NAMESPACE LEMON
1234
1235#endif // LEMON_GRAPH_TO_EPS_H
Note: See TracBrowser for help on using the repository browser.