COIN-OR::LEMON - Graph Library

source: lemon/lemon/graph_to_eps.h @ 133:d76e2ff9c70d

Last change on this file since 133:d76e2ff9c70d was 133:d76e2ff9c70d, checked in by Alpar Juttner <alpar@…>, 12 years ago

Several doc improvements + new default parameter values

  • * *

Several minor improvements in graph_to_eps.h

  • * *

Several minor improvements in graph_to_eps.h

File size: 36.9 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 A well configurable tool for visualizing graphs
47
48namespace lemon {
49
50  namespace _graph_to_eps_bits {
51    template<class MT>
52    class _NegY {
53    public:
54      typedef typename MT::Key Key;
55      typedef typename MT::Value Value;
56      const MT &map;
57      int yscale;
58      _NegY(const MT &m,bool b) : map(m), yscale(1-b*2) {}
59      Value operator[](Key n) { return Value(map[n].x,map[n].y*yscale);}
60    };
61  }
62 
63///Default traits class of \ref GraphToEps
64
65///Default traits class of \ref GraphToEps
66///
67///\c G is the type of the underlying graph.
68template<class G>
69struct DefaultGraphToEpsTraits
70{
71  typedef G Graph;
72  typedef typename Graph::Node Node;
73  typedef typename Graph::NodeIt NodeIt;
74  typedef typename Graph::Arc Arc;
75  typedef typename Graph::ArcIt ArcIt;
76  typedef typename Graph::InArcIt InArcIt;
77  typedef typename Graph::OutArcIt OutArcIt;
78 
79
80  const Graph &g;
81
82  std::ostream& os;
83 
84  typedef ConstMap<typename Graph::Node,dim2::Point<double> > CoordsMapType;
85  CoordsMapType _coords;
86  ConstMap<typename Graph::Node,double > _nodeSizes;
87  ConstMap<typename Graph::Node,int > _nodeShapes;
88
89  ConstMap<typename Graph::Node,Color > _nodeColors;
90  ConstMap<typename Graph::Arc,Color > _arcColors;
91
92  ConstMap<typename Graph::Arc,double > _arcWidths;
93
94  double _arcWidthScale;
95 
96  double _nodeScale;
97  double _xBorder, _yBorder;
98  double _scale;
99  double _nodeBorderQuotient;
100 
101  bool _drawArrows;
102  double _arrowLength, _arrowWidth;
103 
104  bool _showNodes, _showArcs;
105
106  bool _enableParallel;
107  double _parArcDist;
108
109  bool _showNodeText;
110  ConstMap<typename Graph::Node,bool > _nodeTexts; 
111  double _nodeTextSize;
112
113  bool _showNodePsText;
114  ConstMap<typename Graph::Node,bool > _nodePsTexts; 
115  char *_nodePsTextsPreamble;
116 
117  bool _undirected;
118
119  bool _pleaseRemoveOsStream;
120
121  bool _scaleToA4;
122
123  std::string _title;
124  std::string _copyright;
125
126  enum NodeTextColorType
127    { DIST_COL=0, DIST_BW=1, CUST_COL=2, SAME_COL=3 } _nodeTextColorType;
128  ConstMap<typename Graph::Node,Color > _nodeTextColors;
129
130  bool _autoNodeScale;
131  bool _autoArcWidthScale;
132
133  bool _absoluteNodeSizes;
134  bool _absoluteArcWidths;
135
136  bool _negY;
137
138  bool _preScale;
139  ///Constructor
140
141  ///Constructor
142  ///\param _g is a reference to the graph to be printed
143  ///\param _os is a reference to the output stream.
144  ///\param _os is a reference to the output stream.
145  ///\param _pros If it is \c true, then the \c ostream referenced by \c _os
146  ///will be explicitly deallocated by the destructor.
147  ///By default it is <tt>std::cout</tt>
148  DefaultGraphToEpsTraits(const G &_g,std::ostream& _os=std::cout,
149                          bool _pros=false) :
150    g(_g), os(_os),
151    _coords(dim2::Point<double>(1,1)), _nodeSizes(1), _nodeShapes(0),
152    _nodeColors(WHITE), _arcColors(BLACK),
153    _arcWidths(1.0), _arcWidthScale(0.003),
154    _nodeScale(.01), _xBorder(10), _yBorder(10), _scale(1.0),
155    _nodeBorderQuotient(.1),
156    _drawArrows(false), _arrowLength(1), _arrowWidth(0.3),
157    _showNodes(true), _showArcs(true),
158    _enableParallel(false), _parArcDist(1),
159    _showNodeText(false), _nodeTexts(false), _nodeTextSize(1),
160    _showNodePsText(false), _nodePsTexts(false), _nodePsTextsPreamble(0),
161    _undirected(lemon::UndirectedTagIndicator<G>::value),
162    _pleaseRemoveOsStream(_pros), _scaleToA4(false),
163    _nodeTextColorType(SAME_COL), _nodeTextColors(BLACK),
164    _autoNodeScale(false),
165    _autoArcWidthScale(false),
166    _absoluteNodeSizes(false),
167    _absoluteArcWidths(false),
168    _negY(false),
169    _preScale(true)
170  {}
171};
172
173///Auxiliary class to implement the named parameters of \ref graphToEps()
174
175///Auxiliary class to implement the named parameters of \ref graphToEps()
176template<class T> class GraphToEps : public T
177{
178  // Can't believe it is required by the C++ standard
179  using T::g;
180  using T::os;
181
182  using T::_coords;
183  using T::_nodeSizes;
184  using T::_nodeShapes;
185  using T::_nodeColors;
186  using T::_arcColors;
187  using T::_arcWidths;
188
189  using T::_arcWidthScale;
190  using T::_nodeScale;
191  using T::_xBorder;
192  using T::_yBorder;
193  using T::_scale;
194  using T::_nodeBorderQuotient;
195 
196  using T::_drawArrows;
197  using T::_arrowLength;
198  using T::_arrowWidth;
199 
200  using T::_showNodes;
201  using T::_showArcs;
202
203  using T::_enableParallel;
204  using T::_parArcDist;
205
206  using T::_showNodeText;
207  using T::_nodeTexts; 
208  using T::_nodeTextSize;
209
210  using T::_showNodePsText;
211  using T::_nodePsTexts; 
212  using T::_nodePsTextsPreamble;
213 
214  using T::_undirected;
215
216  using T::_pleaseRemoveOsStream;
217
218  using T::_scaleToA4;
219
220  using T::_title;
221  using T::_copyright;
222
223  using T::NodeTextColorType;
224  using T::CUST_COL;
225  using T::DIST_COL;
226  using T::DIST_BW;
227  using T::_nodeTextColorType;
228  using T::_nodeTextColors;
229
230  using T::_autoNodeScale;
231  using T::_autoArcWidthScale;
232
233  using T::_absoluteNodeSizes;
234  using T::_absoluteArcWidths;
235
236
237  using T::_negY;
238  using T::_preScale;
239
240  // dradnats ++C eht yb deriuqer si ti eveileb t'naC
241
242  typedef typename T::Graph Graph;
243  typedef typename Graph::Node Node;
244  typedef typename Graph::NodeIt NodeIt;
245  typedef typename Graph::Arc Arc;
246  typedef typename Graph::ArcIt ArcIt;
247  typedef typename Graph::InArcIt InArcIt;
248  typedef typename Graph::OutArcIt OutArcIt;
249
250  static const int INTERPOL_PREC;
251  static const double A4HEIGHT;
252  static const double A4WIDTH;
253  static const double A4BORDER;
254
255  bool dontPrint;
256
257public:
258  ///Node shapes
259
260  ///Node shapes
261  ///
262  enum NodeShapes {
263    /// = 0
264    ///\image html nodeshape_0.png
265    ///\image latex nodeshape_0.eps "CIRCLE shape (0)" width=2cm
266    CIRCLE=0,
267    /// = 1
268    ///\image html nodeshape_1.png
269    ///\image latex nodeshape_1.eps "SQUARE shape (1)" width=2cm
270    ///
271    SQUARE=1,
272    /// = 2
273    ///\image html nodeshape_2.png
274    ///\image latex nodeshape_2.eps "DIAMOND shape (2)" width=2cm
275    ///
276    DIAMOND=2,
277    /// = 3
278    ///\image html nodeshape_3.png
279    ///\image latex nodeshape_2.eps "MALE shape (4)" width=2cm
280    ///
281    MALE=3,
282    /// = 4
283    ///\image html nodeshape_4.png
284    ///\image latex nodeshape_2.eps "FEMALE shape (4)" width=2cm
285    ///
286    FEMALE=4
287  };
288
289private:
290  class arcLess {
291    const Graph &g;
292  public:
293    arcLess(const Graph &_g) : g(_g) {}
294    bool operator()(Arc a,Arc b) const
295    {
296      Node ai=std::min(g.source(a),g.target(a));
297      Node aa=std::max(g.source(a),g.target(a));
298      Node bi=std::min(g.source(b),g.target(b));
299      Node ba=std::max(g.source(b),g.target(b));
300      return ai<bi ||
301        (ai==bi && (aa < ba ||
302                    (aa==ba && ai==g.source(a) && bi==g.target(b))));
303    }
304  };
305  bool isParallel(Arc e,Arc f) const
306  {
307    return (g.source(e)==g.source(f)&&
308            g.target(e)==g.target(f)) ||
309      (g.source(e)==g.target(f)&&
310       g.target(e)==g.source(f));
311  }
312  template<class TT>
313  static std::string psOut(const dim2::Point<TT> &p)
314    {
315      std::ostringstream os;   
316      os << p.x << ' ' << p.y;
317      return os.str();
318    }
319  static std::string psOut(const Color &c)
320    {
321      std::ostringstream os;   
322      os << c.red() << ' ' << c.green() << ' ' << c.blue();
323      return os.str();
324    }
325 
326public:
327  GraphToEps(const T &t) : T(t), dontPrint(false) {};
328 
329  template<class X> struct CoordsTraits : public T {
330  typedef X CoordsMapType;
331    const X &_coords;
332    CoordsTraits(const T &t,const X &x) : T(t), _coords(x) {}
333  };
334  ///Sets the map of the node coordinates
335
336  ///Sets the map of the node coordinates.
337  ///\param x must be a node map with dim2::Point<double> or
338  ///\ref dim2::Point "dim2::Point<int>" values.
339  template<class X> GraphToEps<CoordsTraits<X> > coords(const X &x) {
340    dontPrint=true;
341    return GraphToEps<CoordsTraits<X> >(CoordsTraits<X>(*this,x));
342  }
343  template<class X> struct NodeSizesTraits : public T {
344    const X &_nodeSizes;
345    NodeSizesTraits(const T &t,const X &x) : T(t), _nodeSizes(x) {}
346  };
347  ///Sets the map of the node sizes
348
349  ///Sets the map of the node sizes
350  ///\param x must be a node map with \c double (or convertible) values.
351  template<class X> GraphToEps<NodeSizesTraits<X> > nodeSizes(const X &x)
352  {
353    dontPrint=true;
354    return GraphToEps<NodeSizesTraits<X> >(NodeSizesTraits<X>(*this,x));
355  }
356  template<class X> struct NodeShapesTraits : public T {
357    const X &_nodeShapes;
358    NodeShapesTraits(const T &t,const X &x) : T(t), _nodeShapes(x) {}
359  };
360  ///Sets the map of the node shapes
361
362  ///Sets the map of the node shapes.
363  ///The available shape values
364  ///can be found in \ref NodeShapes "enum NodeShapes".
365  ///\param x must be a node map with \c int (or convertible) values.
366  ///\sa NodeShapes
367  template<class X> GraphToEps<NodeShapesTraits<X> > nodeShapes(const X &x)
368  {
369    dontPrint=true;
370    return GraphToEps<NodeShapesTraits<X> >(NodeShapesTraits<X>(*this,x));
371  }
372  template<class X> struct NodeTextsTraits : public T {
373    const X &_nodeTexts;
374    NodeTextsTraits(const T &t,const X &x) : T(t), _nodeTexts(x) {}
375  };
376  ///Sets the text printed on the nodes
377
378  ///Sets the text printed on the nodes
379  ///\param x must be a node map with type that can be pushed to a standard
380  ///ostream.
381  template<class X> GraphToEps<NodeTextsTraits<X> > nodeTexts(const X &x)
382  {
383    dontPrint=true;
384    _showNodeText=true;
385    return GraphToEps<NodeTextsTraits<X> >(NodeTextsTraits<X>(*this,x));
386  }
387  template<class X> struct NodePsTextsTraits : public T {
388    const X &_nodePsTexts;
389    NodePsTextsTraits(const T &t,const X &x) : T(t), _nodePsTexts(x) {}
390  };
391  ///Inserts a PostScript block to the nodes
392
393  ///With this command it is possible to insert a verbatim PostScript
394  ///block to the nodes.
395  ///The PS current point will be moved to the centre of the node before
396  ///the PostScript block inserted.
397  ///
398  ///Before and after the block a newline character is inserted so you
399  ///don't have to bother with the separators.
400  ///
401  ///\param x must be a node map with type that can be pushed to a standard
402  ///ostream.
403  ///
404  ///\sa nodePsTextsPreamble()
405  template<class X> GraphToEps<NodePsTextsTraits<X> > nodePsTexts(const X &x)
406  {
407    dontPrint=true;
408    _showNodePsText=true;
409    return GraphToEps<NodePsTextsTraits<X> >(NodePsTextsTraits<X>(*this,x));
410  }
411  template<class X> struct ArcWidthsTraits : public T {
412    const X &_arcWidths;
413    ArcWidthsTraits(const T &t,const X &x) : T(t), _arcWidths(x) {}
414  };
415  ///Sets the map of the arc widths
416
417  ///Sets the map of the arc widths
418  ///\param x must be a arc map with \c double (or convertible) values.
419  template<class X> GraphToEps<ArcWidthsTraits<X> > arcWidths(const X &x)
420  {
421    dontPrint=true;
422    return GraphToEps<ArcWidthsTraits<X> >(ArcWidthsTraits<X>(*this,x));
423  }
424
425  template<class X> struct NodeColorsTraits : public T {
426    const X &_nodeColors;
427    NodeColorsTraits(const T &t,const X &x) : T(t), _nodeColors(x) {}
428  };
429  ///Sets the map of the node colors
430
431  ///Sets the map of the node colors
432  ///\param x must be a node map with \ref Color values.
433  ///
434  ///\sa Palette
435  template<class X> GraphToEps<NodeColorsTraits<X> >
436  nodeColors(const X &x)
437  {
438    dontPrint=true;
439    return GraphToEps<NodeColorsTraits<X> >(NodeColorsTraits<X>(*this,x));
440  }
441  template<class X> struct NodeTextColorsTraits : public T {
442    const X &_nodeTextColors;
443    NodeTextColorsTraits(const T &t,const X &x) : T(t), _nodeTextColors(x) {}
444  };
445  ///Sets the map of the node text colors
446
447  ///Sets the map of the node text colors
448  ///\param x must be a node map with \ref Color values.
449  ///
450  ///\sa Palette
451  template<class X> GraphToEps<NodeTextColorsTraits<X> >
452  nodeTextColors(const X &x)
453  {
454    dontPrint=true;
455    _nodeTextColorType=CUST_COL;
456    return GraphToEps<NodeTextColorsTraits<X> >
457      (NodeTextColorsTraits<X>(*this,x));
458  }
459  template<class X> struct ArcColorsTraits : public T {
460    const X &_arcColors;
461    ArcColorsTraits(const T &t,const X &x) : T(t), _arcColors(x) {}
462  };
463  ///Sets the map of the arc colors
464
465  ///Sets the map of the arc colors
466  ///\param x must be a arc map with \ref Color values.
467  ///
468  ///\sa Palette
469  template<class X> GraphToEps<ArcColorsTraits<X> >
470  arcColors(const X &x)
471  {
472    dontPrint=true;
473    return GraphToEps<ArcColorsTraits<X> >(ArcColorsTraits<X>(*this,x));
474  }
475  ///Sets a global scale factor for node sizes
476
477  ///Sets a global scale factor for node sizes.
478  ///
479  /// If nodeSizes() is not given, this function simply sets the node
480  /// sizes to \c d.  If nodeSizes() is given, but
481  /// autoNodeScale() is not, then the node size given by
482  /// nodeSizes() will be multiplied by the value \c d.
483  /// If both nodeSizes() and autoNodeScale() are used, then the
484  /// node sizes will be scaled in such a way that the greatest size will be
485  /// equal to \c d.
486  /// \sa nodeSizes()
487  /// \sa autoNodeScale()
488  GraphToEps<T> &nodeScale(double d=.01) {_nodeScale=d;return *this;}
489  ///Turns on/off the automatic node width scaling.
490
491  ///Turns on/off the automatic node width scaling.
492  ///
493  ///\sa nodeScale()
494  ///
495  GraphToEps<T> &autoNodeScale(bool b=true) {
496    _autoNodeScale=b;return *this;
497  }
498
499  ///Turns on/off the absolutematic node width scaling.
500
501  ///Turns on/off the absolutematic node width scaling.
502  ///
503  ///\sa nodeScale()
504  ///
505  GraphToEps<T> &absoluteNodeSizes(bool b=true) {
506    _absoluteNodeSizes=b;return *this;
507  }
508
509  ///Negates the Y coordinates.
510
511  ///Negates the Y coordinates.
512  ///
513  GraphToEps<T> &negateY(bool b=true) {
514    _negY=b;return *this;
515  }
516
517  ///Turn on/off pre-scaling
518
519  ///By default graphToEps() rescales the whole image in order to avoid
520  ///very big or very small bounding boxes.
521  ///
522  ///This (p)rescaling can be turned off with this function.
523  ///
524  GraphToEps<T> &preScale(bool b=true) {
525    _preScale=b;return *this;
526  }
527
528  ///Sets a global scale factor for arc widths
529
530  /// Sets a global scale factor for arc widths.
531  ///
532  /// If arcWidths() is not given, this function simply sets the arc
533  /// widths to \c d.  If arcWidths() is given, but
534  /// autoArcWidthScale() is not, then the arc withs given by
535  /// arcWidths() will be multiplied by the value \c d.
536  /// If both arcWidths() and autoArcWidthScale() are used, then the
537  /// arc withs will be scaled in such a way that the greatest width will be
538  /// equal to \c d.
539  GraphToEps<T> &arcWidthScale(double d=.003) {_arcWidthScale=d;return *this;}
540  ///Turns on/off the automatic arc width scaling.
541
542  ///Turns on/off the automatic arc width scaling.
543  ///
544  ///\sa arcWidthScale()
545  ///
546  GraphToEps<T> &autoArcWidthScale(bool b=true) {
547    _autoArcWidthScale=b;return *this;
548  }
549  ///Turns on/off the absolutematic arc width scaling.
550
551  ///Turns on/off the absolutematic arc width scaling.
552  ///
553  ///\sa arcWidthScale()
554  ///
555  GraphToEps<T> &absoluteArcWidths(bool b=true) {
556    _absoluteArcWidths=b;return *this;
557  }
558  ///Sets a global scale factor for the whole picture
559
560  ///Sets a global scale factor for the whole picture
561  ///
562
563  GraphToEps<T> &scale(double d) {_scale=d;return *this;}
564  ///Sets the width of the border around the picture
565
566  ///Sets the width of the border around the picture
567  ///
568  GraphToEps<T> &border(double b=10) {_xBorder=_yBorder=b;return *this;}
569  ///Sets the width of the border around the picture
570
571  ///Sets the width of the border around the picture
572  ///
573  GraphToEps<T> &border(double x, double y) {
574    _xBorder=x;_yBorder=y;return *this;
575  }
576  ///Sets whether to draw arrows
577
578  ///Sets whether to draw arrows
579  ///
580  GraphToEps<T> &drawArrows(bool b=true) {_drawArrows=b;return *this;}
581  ///Sets the length of the arrowheads
582
583  ///Sets the length of the arrowheads
584  ///
585  GraphToEps<T> &arrowLength(double d=1.0) {_arrowLength*=d;return *this;}
586  ///Sets the width of the arrowheads
587
588  ///Sets the width of the arrowheads
589  ///
590  GraphToEps<T> &arrowWidth(double d=.3) {_arrowWidth*=d;return *this;}
591 
592  ///Scales the drawing to fit to A4 page
593
594  ///Scales the drawing to fit to A4 page
595  ///
596  GraphToEps<T> &scaleToA4() {_scaleToA4=true;return *this;}
597 
598  ///Enables parallel arcs
599
600  ///Enables parallel arcs
601  GraphToEps<T> &enableParallel(bool b=true) {_enableParallel=b;return *this;}
602 
603  ///Sets the distance
604 
605  ///Sets the distance
606  ///
607  GraphToEps<T> &parArcDist(double d) {_parArcDist*=d;return *this;}
608 
609  ///Hides the arcs
610 
611  ///Hides the arcs
612  ///
613  GraphToEps<T> &hideArcs(bool b=true) {_showArcs=!b;return *this;}
614  ///Hides the nodes
615 
616  ///Hides the nodes
617  ///
618  GraphToEps<T> &hideNodes(bool b=true) {_showNodes=!b;return *this;}
619 
620  ///Sets the size of the node texts
621 
622  ///Sets the size of the node texts
623  ///
624  GraphToEps<T> &nodeTextSize(double d) {_nodeTextSize=d;return *this;}
625
626  ///Sets the color of the node texts to be different from the node color
627
628  ///Sets the color of the node texts to be as different from the node color
629  ///as it is possible
630  ///
631  GraphToEps<T> &distantColorNodeTexts()
632  {_nodeTextColorType=DIST_COL;return *this;}
633  ///Sets the color of the node texts to be black or white and always visible.
634
635  ///Sets the color of the node texts to be black or white according to
636  ///which is more
637  ///different from the node color
638  ///
639  GraphToEps<T> &distantBWNodeTexts()
640  {_nodeTextColorType=DIST_BW;return *this;}
641
642  ///Gives a preamble block for node Postscript block.
643 
644  ///Gives a preamble block for node Postscript block.
645  ///
646  ///\sa nodePsTexts()
647  GraphToEps<T> & nodePsTextsPreamble(const char *str) {
648    _nodePsTextsPreamble=str ;return *this;
649  }
650  ///Sets whether the the graph is undirected
651
652  ///Sets whether the the graph is undirected.
653  ///
654  ///This setting is the default for undirected graphs.
655  ///
656  ///\sa directed()
657   GraphToEps<T> &undirected(bool b=true) {_undirected=b;return *this;}
658
659  ///Sets whether the the graph is directed
660
661  ///Sets whether the the graph is directed.
662  ///Use it to show the edges as a pair of directed ones.
663  ///
664  ///This setting is the default for digraphs.
665  ///
666  ///\sa undirected()
667  GraphToEps<T> &directed(bool b=true) {_undirected=!b;return *this;}
668 
669  ///Sets the title.
670
671  ///Sets the title of the generated image,
672  ///namely it inserts a <tt>%%Title:</tt> DSC field to the header of
673  ///the EPS file.
674  GraphToEps<T> &title(const std::string &t) {_title=t;return *this;}
675  ///Sets the copyright statement.
676
677  ///Sets the copyright statement of the generated image,
678  ///namely it inserts a <tt>%%Copyright:</tt> DSC field to the header of
679  ///the EPS file.
680  GraphToEps<T> &copyright(const std::string &t) {_copyright=t;return *this;}
681
682protected:
683  bool isInsideNode(dim2::Point<double> p, double r,int t)
684  {
685    switch(t) {
686    case CIRCLE:
687    case MALE:
688    case FEMALE:
689      return p.normSquare()<=r*r;
690    case SQUARE:
691      return p.x<=r&&p.x>=-r&&p.y<=r&&p.y>=-r;
692    case DIAMOND:
693      return p.x+p.y<=r && p.x-p.y<=r && -p.x+p.y<=r && -p.x-p.y<=r;
694    }
695    return false;
696  }
697
698public:
699  ~GraphToEps() { }
700 
701  ///Draws the graph.
702
703  ///Like other functions using
704  ///\ref named-templ-func-param "named template parameters",
705  ///this function calls the algorithm itself, i.e. in this case
706  ///it draws the graph.
707  void run() {
708    //\todo better 'epsilon' would be nice here.
709    const double EPSILON=1e-9;
710    if(dontPrint) return;
711   
712    _graph_to_eps_bits::_NegY<typename T::CoordsMapType>
713      mycoords(_coords,_negY);
714
715    os << "%!PS-Adobe-2.0 EPSF-2.0\n";
716    if(_title.size()>0) os << "%%Title: " << _title << '\n';
717     if(_copyright.size()>0) os << "%%Copyright: " << _copyright << '\n';
718//        << "%%Copyright: XXXX\n"
719    os << "%%Creator: LEMON, graphToEps()\n";
720   
721    {
722      char cbuf[50];
723      timeval tv;
724      gettimeofday(&tv, 0);
725      ctime_r(&tv.tv_sec,cbuf);
726      os << "%%CreationDate: " << cbuf;
727    }
728
729    if (_autoArcWidthScale) {
730      double max_w=0;
731      for(ArcIt e(g);e!=INVALID;++e)
732        max_w=std::max(double(_arcWidths[e]),max_w);
733      ///\todo better 'epsilon' would be nice here.
734      if(max_w>EPSILON) {
735        _arcWidthScale/=max_w;
736      }
737    }
738
739    if (_autoNodeScale) {
740      double max_s=0;
741      for(NodeIt n(g);n!=INVALID;++n)
742        max_s=std::max(double(_nodeSizes[n]),max_s);
743      ///\todo better 'epsilon' would be nice here.
744      if(max_s>EPSILON) {
745        _nodeScale/=max_s;
746      }
747    }
748
749    double diag_len = 1;
750    if(!(_absoluteNodeSizes&&_absoluteArcWidths)) {
751      dim2::BoundingBox<double> bb;
752      for(NodeIt n(g);n!=INVALID;++n) bb.add(mycoords[n]);
753      if (bb.empty()) {
754        bb = dim2::BoundingBox<double>(dim2::Point<double>(0,0));
755      }
756      diag_len = std::sqrt((bb.bottomLeft()-bb.topRight()).normSquare());
757      if(diag_len<EPSILON) diag_len = 1;
758      if(!_absoluteNodeSizes) _nodeScale*=diag_len;
759      if(!_absoluteArcWidths) _arcWidthScale*=diag_len;
760    }
761   
762    dim2::BoundingBox<double> bb;
763    for(NodeIt n(g);n!=INVALID;++n) {
764      double ns=_nodeSizes[n]*_nodeScale;
765      dim2::Point<double> p(ns,ns);
766      switch(_nodeShapes[n]) {
767      case CIRCLE:
768      case SQUARE:
769      case DIAMOND:
770        bb.add(p+mycoords[n]);
771        bb.add(-p+mycoords[n]);
772        break;
773      case MALE:
774        bb.add(-p+mycoords[n]);
775        bb.add(dim2::Point<double>(1.5*ns,1.5*std::sqrt(3.0)*ns)+mycoords[n]);
776        break;
777      case FEMALE:
778        bb.add(p+mycoords[n]);
779        bb.add(dim2::Point<double>(-ns,-3.01*ns)+mycoords[n]);
780        break;
781      }
782    }
783    if (bb.empty()) {
784      bb = dim2::BoundingBox<double>(dim2::Point<double>(0,0));
785    }
786   
787    if(_scaleToA4)
788      os <<"%%BoundingBox: 0 0 596 842\n%%DocumentPaperSizes: a4\n";
789    else {
790      if(_preScale) {
791        //Rescale so that BoundingBox won't be neither to big nor too small.
792        while(bb.height()*_scale>1000||bb.width()*_scale>1000) _scale/=10;
793        while(bb.height()*_scale<100||bb.width()*_scale<100) _scale*=10;
794      }
795     
796      os << "%%BoundingBox: "
797         << int(floor(bb.left()   * _scale - _xBorder)) << ' '
798         << int(floor(bb.bottom() * _scale - _yBorder)) << ' '
799         << int(ceil(bb.right()  * _scale + _xBorder)) << ' '
800         << int(ceil(bb.top()    * _scale + _yBorder)) << '\n';
801    }
802   
803    os << "%%EndComments\n";
804   
805    //x1 y1 x2 y2 x3 y3 cr cg cb w
806    os << "/lb { setlinewidth setrgbcolor newpath moveto\n"
807       << "      4 2 roll 1 index 1 index curveto stroke } bind def\n";
808    os << "/l { setlinewidth setrgbcolor newpath moveto lineto stroke } bind def\n";
809    //x y r
810    os << "/c { newpath dup 3 index add 2 index moveto 0 360 arc closepath } bind def\n";
811    //x y r
812    os << "/sq { newpath 2 index 1 index add 2 index 2 index add moveto\n"
813       << "      2 index 1 index sub 2 index 2 index add lineto\n"
814       << "      2 index 1 index sub 2 index 2 index sub lineto\n"
815       << "      2 index 1 index add 2 index 2 index sub lineto\n"
816       << "      closepath pop pop pop} bind def\n";
817    //x y r
818    os << "/di { newpath 2 index 1 index add 2 index moveto\n"
819       << "      2 index             2 index 2 index add lineto\n"
820       << "      2 index 1 index sub 2 index             lineto\n"
821       << "      2 index             2 index 2 index sub lineto\n"
822       << "      closepath pop pop pop} bind def\n";
823    // x y r cr cg cb
824    os << "/nc { 0 0 0 setrgbcolor 5 index 5 index 5 index c fill\n"
825       << "     setrgbcolor " << 1+_nodeBorderQuotient << " div c fill\n"
826       << "   } bind def\n";
827    os << "/nsq { 0 0 0 setrgbcolor 5 index 5 index 5 index sq fill\n"
828       << "     setrgbcolor " << 1+_nodeBorderQuotient << " div sq fill\n"
829       << "   } bind def\n";
830    os << "/ndi { 0 0 0 setrgbcolor 5 index 5 index 5 index di fill\n"
831       << "     setrgbcolor " << 1+_nodeBorderQuotient << " div di fill\n"
832       << "   } bind def\n";
833    os << "/nfemale { 0 0 0 setrgbcolor 3 index "
834       << _nodeBorderQuotient/(1+_nodeBorderQuotient)
835       << " 1.5 mul mul setlinewidth\n"
836       << "  newpath 5 index 5 index moveto "
837       << "5 index 5 index 5 index 3.01 mul sub\n"
838       << "  lineto 5 index 4 index .7 mul sub 5 index 5 index 2.2 mul sub moveto\n"
839       << "  5 index 4 index .7 mul add 5 index 5 index 2.2 mul sub lineto stroke\n"
840       << "  5 index 5 index 5 index c fill\n"
841       << "  setrgbcolor " << 1+_nodeBorderQuotient << " div c fill\n"
842       << "  } bind def\n";
843    os << "/nmale {\n"
844       << "  0 0 0 setrgbcolor 3 index "
845       << _nodeBorderQuotient/(1+_nodeBorderQuotient)
846       <<" 1.5 mul mul setlinewidth\n"
847       << "  newpath 5 index 5 index moveto\n"
848       << "  5 index 4 index 1 mul 1.5 mul add\n"
849       << "  5 index 5 index 3 sqrt 1.5 mul mul add\n"
850       << "  1 index 1 index lineto\n"
851       << "  1 index 1 index 7 index sub moveto\n"
852       << "  1 index 1 index lineto\n"
853       << "  exch 5 index 3 sqrt .5 mul mul sub exch 5 index .5 mul sub lineto\n"
854       << "  stroke\n"
855       << "  5 index 5 index 5 index c fill\n"
856       << "  setrgbcolor " << 1+_nodeBorderQuotient << " div c fill\n"
857       << "  } bind def\n";
858   
859
860    os << "/arrl " << _arrowLength << " def\n";
861    os << "/arrw " << _arrowWidth << " def\n";
862    // l dx_norm dy_norm
863    os << "/lrl { 2 index mul exch 2 index mul exch rlineto pop} bind def\n";
864    //len w dx_norm dy_norm x1 y1 cr cg cb
865    os << "/arr { setrgbcolor /y1 exch def /x1 exch def /dy exch def /dx exch def\n"
866       << "       /w exch def /len exch def\n"
867      //         << "       0.1 setlinewidth x1 y1 moveto dx len mul dy len mul rlineto stroke"
868       << "       newpath x1 dy w 2 div mul add y1 dx w 2 div mul sub moveto\n"
869       << "       len w sub arrl sub dx dy lrl\n"
870       << "       arrw dy dx neg lrl\n"
871       << "       dx arrl w add mul dy w 2 div arrw add mul sub\n"
872       << "       dy arrl w add mul dx w 2 div arrw add mul add rlineto\n"
873       << "       dx arrl w add mul neg dy w 2 div arrw add mul sub\n"
874       << "       dy arrl w add mul neg dx w 2 div arrw add mul add rlineto\n"
875       << "       arrw dy dx neg lrl\n"
876       << "       len w sub arrl sub neg dx dy lrl\n"
877       << "       closepath fill } bind def\n";
878    os << "/cshow { 2 index 2 index moveto dup stringwidth pop\n"
879       << "         neg 2 div fosi .35 mul neg rmoveto show pop pop} def\n";
880
881    os << "\ngsave\n";
882    if(_scaleToA4)
883      if(bb.height()>bb.width()) {
884        double sc= std::min((A4HEIGHT-2*A4BORDER)/bb.height(),
885                  (A4WIDTH-2*A4BORDER)/bb.width());
886        os << ((A4WIDTH -2*A4BORDER)-sc*bb.width())/2 + A4BORDER << ' '
887           << ((A4HEIGHT-2*A4BORDER)-sc*bb.height())/2 + A4BORDER
888           << " translate\n"
889           << sc << " dup scale\n"
890           << -bb.left() << ' ' << -bb.bottom() << " translate\n";
891      }
892      else {
893        //\todo Verify centering
894        double sc= std::min((A4HEIGHT-2*A4BORDER)/bb.width(),
895                  (A4WIDTH-2*A4BORDER)/bb.height());
896        os << ((A4WIDTH -2*A4BORDER)-sc*bb.height())/2 + A4BORDER << ' '
897           << ((A4HEIGHT-2*A4BORDER)-sc*bb.width())/2 + A4BORDER
898           << " translate\n"
899           << sc << " dup scale\n90 rotate\n"
900           << -bb.left() << ' ' << -bb.top() << " translate\n";
901        }
902    else if(_scale!=1.0) os << _scale << " dup scale\n";
903   
904    if(_showArcs) {
905      os << "%Arcs:\ngsave\n";     
906      if(_enableParallel) {
907        std::vector<Arc> el;
908        for(ArcIt e(g);e!=INVALID;++e)
909          if((!_undirected||g.source(e)<g.target(e))&&_arcWidths[e]>0
910             &&g.source(e)!=g.target(e))
911            el.push_back(e);
912        std::sort(el.begin(),el.end(),arcLess(g));
913       
914        typename std::vector<Arc>::iterator j;
915        for(typename std::vector<Arc>::iterator i=el.begin();i!=el.end();i=j) {
916          for(j=i+1;j!=el.end()&&isParallel(*i,*j);++j) ;
917
918          double sw=0;
919          for(typename std::vector<Arc>::iterator e=i;e!=j;++e)
920            sw+=_arcWidths[*e]*_arcWidthScale+_parArcDist;
921          sw-=_parArcDist;
922          sw/=-2.0;
923          dim2::Point<double>
924            dvec(mycoords[g.target(*i)]-mycoords[g.source(*i)]);
925          double l=std::sqrt(dvec.normSquare());
926          //\todo better 'epsilon' would be nice here.
927          dim2::Point<double> d(dvec/std::max(l,EPSILON));
928          dim2::Point<double> m;
929//        m=dim2::Point<double>(mycoords[g.target(*i)]+mycoords[g.source(*i)])/2.0;
930
931//        m=dim2::Point<double>(mycoords[g.source(*i)])+
932//          dvec*(double(_nodeSizes[g.source(*i)])/
933//             (_nodeSizes[g.source(*i)]+_nodeSizes[g.target(*i)]));
934
935          m=dim2::Point<double>(mycoords[g.source(*i)])+
936            d*(l+_nodeSizes[g.source(*i)]-_nodeSizes[g.target(*i)])/2.0;
937
938          for(typename std::vector<Arc>::iterator e=i;e!=j;++e) {
939            sw+=_arcWidths[*e]*_arcWidthScale/2.0;
940            dim2::Point<double> mm=m+rot90(d)*sw/.75;
941            if(_drawArrows) {
942              int node_shape;
943              dim2::Point<double> s=mycoords[g.source(*e)];
944              dim2::Point<double> t=mycoords[g.target(*e)];
945              double rn=_nodeSizes[g.target(*e)]*_nodeScale;
946              node_shape=_nodeShapes[g.target(*e)];
947              dim2::Bezier3 bez(s,mm,mm,t);
948              double t1=0,t2=1;
949              for(int ii=0;ii<INTERPOL_PREC;++ii)
950                if(isInsideNode(bez((t1+t2)/2)-t,rn,node_shape)) t2=(t1+t2)/2;
951                else t1=(t1+t2)/2;
952              dim2::Point<double> apoint=bez((t1+t2)/2);
953              rn = _arrowLength+_arcWidths[*e]*_arcWidthScale;
954              rn*=rn;
955              t2=(t1+t2)/2;t1=0;
956              for(int ii=0;ii<INTERPOL_PREC;++ii)
957                if((bez((t1+t2)/2)-apoint).normSquare()>rn) t1=(t1+t2)/2;
958                else t2=(t1+t2)/2;
959              dim2::Point<double> linend=bez((t1+t2)/2);             
960              bez=bez.before((t1+t2)/2);
961//            rn=_nodeSizes[g.source(*e)]*_nodeScale;
962//            node_shape=_nodeShapes[g.source(*e)];
963//            t1=0;t2=1;
964//            for(int i=0;i<INTERPOL_PREC;++i)
965//              if(isInsideNode(bez((t1+t2)/2)-t,rn,node_shape)) t1=(t1+t2)/2;
966//              else t2=(t1+t2)/2;
967//            bez=bez.after((t1+t2)/2);
968              os << _arcWidths[*e]*_arcWidthScale << " setlinewidth "
969                 << _arcColors[*e].red() << ' '
970                 << _arcColors[*e].green() << ' '
971                 << _arcColors[*e].blue() << " setrgbcolor newpath\n"
972                 << bez.p1.x << ' ' <<  bez.p1.y << " moveto\n"
973                 << bez.p2.x << ' ' << bez.p2.y << ' '
974                 << bez.p3.x << ' ' << bez.p3.y << ' '
975                 << bez.p4.x << ' ' << bez.p4.y << " curveto stroke\n";
976              dim2::Point<double> dd(rot90(linend-apoint));
977              dd*=(.5*_arcWidths[*e]*_arcWidthScale+_arrowWidth)/
978                std::sqrt(dd.normSquare());
979              os << "newpath " << psOut(apoint) << " moveto "
980                 << psOut(linend+dd) << " lineto "
981                 << psOut(linend-dd) << " lineto closepath fill\n";
982            }
983            else {
984              os << mycoords[g.source(*e)].x << ' '
985                 << mycoords[g.source(*e)].y << ' '
986                 << mm.x << ' ' << mm.y << ' '
987                 << mycoords[g.target(*e)].x << ' '
988                 << mycoords[g.target(*e)].y << ' '
989                 << _arcColors[*e].red() << ' '
990                 << _arcColors[*e].green() << ' '
991                 << _arcColors[*e].blue() << ' '
992                 << _arcWidths[*e]*_arcWidthScale << " lb\n";
993            }
994            sw+=_arcWidths[*e]*_arcWidthScale/2.0+_parArcDist;
995          }
996        }
997      }
998      else for(ArcIt e(g);e!=INVALID;++e)
999        if((!_undirected||g.source(e)<g.target(e))&&_arcWidths[e]>0
1000           &&g.source(e)!=g.target(e))
1001          if(_drawArrows) {
1002            dim2::Point<double> d(mycoords[g.target(e)]-mycoords[g.source(e)]);
1003            double rn=_nodeSizes[g.target(e)]*_nodeScale;
1004            int node_shape=_nodeShapes[g.target(e)];
1005            double t1=0,t2=1;
1006            for(int i=0;i<INTERPOL_PREC;++i)
1007              if(isInsideNode((-(t1+t2)/2)*d,rn,node_shape)) t1=(t1+t2)/2;
1008              else t2=(t1+t2)/2;
1009            double l=std::sqrt(d.normSquare());
1010            d/=l;
1011           
1012            os << l*(1-(t1+t2)/2) << ' '
1013               << _arcWidths[e]*_arcWidthScale << ' '
1014               << d.x << ' ' << d.y << ' '
1015               << mycoords[g.source(e)].x << ' '
1016               << mycoords[g.source(e)].y << ' '
1017               << _arcColors[e].red() << ' '
1018               << _arcColors[e].green() << ' '
1019               << _arcColors[e].blue() << " arr\n";
1020          }
1021          else os << mycoords[g.source(e)].x << ' '
1022                  << mycoords[g.source(e)].y << ' '
1023                  << mycoords[g.target(e)].x << ' '
1024                  << mycoords[g.target(e)].y << ' '
1025                  << _arcColors[e].red() << ' '
1026                  << _arcColors[e].green() << ' '
1027                  << _arcColors[e].blue() << ' '
1028                  << _arcWidths[e]*_arcWidthScale << " l\n";
1029      os << "grestore\n";
1030    }
1031    if(_showNodes) {
1032      os << "%Nodes:\ngsave\n";
1033      for(NodeIt n(g);n!=INVALID;++n) {
1034        os << mycoords[n].x << ' ' << mycoords[n].y << ' '
1035           << _nodeSizes[n]*_nodeScale << ' '
1036           << _nodeColors[n].red() << ' '
1037           << _nodeColors[n].green() << ' '
1038           << _nodeColors[n].blue() << ' ';
1039        switch(_nodeShapes[n]) {
1040        case CIRCLE:
1041          os<< "nc";break;
1042        case SQUARE:
1043          os<< "nsq";break;
1044        case DIAMOND:
1045          os<< "ndi";break;
1046        case MALE:
1047          os<< "nmale";break;
1048        case FEMALE:
1049          os<< "nfemale";break;
1050        }
1051        os<<'\n';
1052      }
1053      os << "grestore\n";
1054    }
1055    if(_showNodeText) {
1056      os << "%Node texts:\ngsave\n";
1057      os << "/fosi " << _nodeTextSize << " def\n";
1058      os << "(Helvetica) findfont fosi scalefont setfont\n";
1059      for(NodeIt n(g);n!=INVALID;++n) {
1060        switch(_nodeTextColorType) {
1061        case DIST_COL:
1062          os << psOut(distantColor(_nodeColors[n])) << " setrgbcolor\n";
1063          break;
1064        case DIST_BW:
1065          os << psOut(distantBW(_nodeColors[n])) << " setrgbcolor\n";
1066          break;
1067        case CUST_COL:
1068          os << psOut(distantColor(_nodeTextColors[n])) << " setrgbcolor\n";
1069          break;
1070        default:
1071          os << "0 0 0 setrgbcolor\n";
1072        }
1073        os << mycoords[n].x << ' ' << mycoords[n].y
1074           << " (" << _nodeTexts[n] << ") cshow\n";
1075      }
1076      os << "grestore\n";
1077    }
1078    if(_showNodePsText) {
1079      os << "%Node PS blocks:\ngsave\n";
1080      for(NodeIt n(g);n!=INVALID;++n)
1081        os << mycoords[n].x << ' ' << mycoords[n].y
1082           << " moveto\n" << _nodePsTexts[n] << "\n";
1083      os << "grestore\n";
1084    }
1085   
1086    os << "grestore\nshowpage\n";
1087
1088    //CleanUp:
1089    if(_pleaseRemoveOsStream) {delete &os;}
1090  }
1091
1092  ///\name Aliases
1093  ///These are just some aliases to other parameter setting functions.
1094
1095  ///@{
1096
1097  ///An alias for arcWidths()
1098
1099  ///An alias for arcWidths()
1100  ///
1101  template<class X> GraphToEps<ArcWidthsTraits<X> > edgeWidths(const X &x)
1102  {
1103    return arcWidths(x);
1104  }
1105
1106  ///An alias for arcColors()
1107
1108  ///An alias for arcColors()
1109  ///
1110  template<class X> GraphToEps<ArcColorsTraits<X> >
1111  edgeColors(const X &x)
1112  {
1113    return arcColors(x);
1114  }
1115
1116  ///An alias for arcWidthScale()
1117
1118  ///An alias for arcWidthScale()
1119  ///
1120  GraphToEps<T> &edgeWidthScale(double d) {return arcWidthScale(d);}
1121
1122  ///An alias for autoArcWidthScale()
1123
1124  ///An alias for autoArcWidthScale()
1125  ///
1126  GraphToEps<T> &autoEdgeWidthScale(bool b=true)
1127  {
1128    return autoArcWidthScale(b);
1129  }
1130 
1131  ///An alias for absoluteArcWidths()
1132
1133  ///An alias for absoluteArcWidths()
1134  ///
1135  GraphToEps<T> &absoluteEdgeWidths(bool b=true)
1136  {
1137    return absoluteArcWidths(b);
1138  }
1139 
1140  ///An alias for parArcDist()
1141
1142  ///An alias for parArcDist()
1143  ///
1144  GraphToEps<T> &parEdgeDist(double d) {return parArcDist(d);}
1145 
1146  ///An alias for hideArcs()
1147 
1148  ///An alias for hideArcs()
1149  ///
1150  GraphToEps<T> &hideEdges(bool b=true) {return hideArcs(b);}
1151
1152  ///@}
1153};
1154
1155template<class T>
1156const int GraphToEps<T>::INTERPOL_PREC = 20;
1157template<class T>
1158const double GraphToEps<T>::A4HEIGHT = 841.8897637795276;
1159template<class T>
1160const double GraphToEps<T>::A4WIDTH  = 595.275590551181;
1161template<class T>
1162const double GraphToEps<T>::A4BORDER = 15;
1163
1164
1165///Generates an EPS file from a graph
1166
1167///\ingroup eps_io
1168///Generates an EPS file from a graph.
1169///\param g is a reference to the graph to be printed
1170///\param os is a reference to the output stream.
1171///By default it is <tt>std::cout</tt>
1172///
1173///This function also has a lot of
1174///\ref named-templ-func-param "named parameters",
1175///they are declared as the members of class \ref GraphToEps. The following
1176///example shows how to use these parameters.
1177///\code
1178/// graphToEps(g,os).scale(10).coords(coords)
1179///              .nodeScale(2).nodeSizes(sizes)
1180///              .arcWidthScale(.4).run();
1181///\endcode
1182///\warning Don't forget to put the \ref GraphToEps::run() "run()"
1183///to the end of the parameter list.
1184///\sa GraphToEps
1185///\sa graphToEps(G &g, const char *file_name)
1186template<class G>
1187GraphToEps<DefaultGraphToEpsTraits<G> >
1188graphToEps(G &g, std::ostream& os=std::cout)
1189{
1190  return
1191    GraphToEps<DefaultGraphToEpsTraits<G> >(DefaultGraphToEpsTraits<G>(g,os));
1192}
1193 
1194///Generates an EPS file from a graph
1195
1196///\ingroup eps_io
1197///This function does the same as
1198///\ref graphToEps(G &g,std::ostream& os)
1199///but it writes its output into the file \c file_name
1200///instead of a stream.
1201///\sa graphToEps(G &g, std::ostream& os)
1202template<class G>
1203GraphToEps<DefaultGraphToEpsTraits<G> >
1204graphToEps(G &g,const char *file_name)
1205{
1206  return GraphToEps<DefaultGraphToEpsTraits<G> >
1207    (DefaultGraphToEpsTraits<G>(g,*new std::ofstream(file_name),true));
1208}
1209
1210///Generates an EPS file from a graph
1211
1212///\ingroup eps_io
1213///This function does the same as
1214///\ref graphToEps(G &g,std::ostream& os)
1215///but it writes its output into the file \c file_name
1216///instead of a stream.
1217///\sa graphToEps(G &g, std::ostream& os)
1218template<class G>
1219GraphToEps<DefaultGraphToEpsTraits<G> >
1220graphToEps(G &g,const std::string& file_name)
1221{
1222  return GraphToEps<DefaultGraphToEpsTraits<G> >
1223    (DefaultGraphToEpsTraits<G>(g,*new std::ofstream(file_name.c_str()),true));
1224}
1225
1226} //END OF NAMESPACE LEMON
1227
1228#endif // LEMON_GRAPH_TO_EPS_H
Note: See TracBrowser for help on using the repository browser.