lemon-1.1: lemon/graph_to_eps.h@66bb22401834

     1 /* -*- mode: C++; indent-tabs-mode: nil; -*-

     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  */

    19 #ifndef LEMON_GRAPH_TO_EPS_H

    20 #define LEMON_GRAPH_TO_EPS_H

    22 #include<iostream>

    23 #include<fstream>

    24 #include<sstream>

    25 #include<algorithm>

    26 #include<vector>

    28 #ifndef WIN32

    29 #include<sys/time.h>

    30 #include<ctime>

    31 #else

    32 #define WIN32_LEAN_AND_MEAN

    33 #define NOMINMAX

    34 #include<windows.h>

    35 #endif

    37 #include<lemon/math.h>

    38 #include<lemon/core.h>

    39 #include<lemon/dim2.h>

    40 #include<lemon/maps.h>

    41 #include<lemon/color.h>

    42 #include<lemon/bits/bezier.h>

    45 ///\ingroup eps_io

    46 ///\file

    47 ///\brief A well configurable tool for visualizing graphs

    49 namespace lemon {

    51   namespace _graph_to_eps_bits {

    52     template<class MT>

    53     class _NegY {

    54     public:

    55       typedef typename MT::Key Key;

    56       typedef typename MT::Value Value;

    57       const MT &map;

    58       int yscale;

    59       _NegY(const MT &m,bool b) : map(m), yscale(1-b*2) {}

    60       Value operator[](Key n) { return Value(map[n].x,map[n].y*yscale);}

    61     };

    62   }

    64 ///Default traits class of \ref GraphToEps

    66 ///Default traits class of \ref GraphToEps.

    67 ///

    68 ///\c G is the type of the underlying graph.

    69 template<class G>

    70 struct DefaultGraphToEpsTraits

    71 {

    72   typedef G Graph;

    73   typedef typename Graph::Node Node;

    74   typedef typename Graph::NodeIt NodeIt;

    75   typedef typename Graph::Arc Arc;

    76   typedef typename Graph::ArcIt ArcIt;

    77   typedef typename Graph::InArcIt InArcIt;

    78   typedef typename Graph::OutArcIt OutArcIt;

    81   const Graph &g;

    83   std::ostream& os;

    85   typedef ConstMap<typename Graph::Node,dim2::Point<double> > CoordsMapType;

    86   CoordsMapType _coords;

    87   ConstMap<typename Graph::Node,double > _nodeSizes;

    88   ConstMap<typename Graph::Node,int > _nodeShapes;

    90   ConstMap<typename Graph::Node,Color > _nodeColors;

    91   ConstMap<typename Graph::Arc,Color > _arcColors;

    93   ConstMap<typename Graph::Arc,double > _arcWidths;

    95   double _arcWidthScale;

    97   double _nodeScale;

    98   double _xBorder, _yBorder;

    99   double _scale;

   100   double _nodeBorderQuotient;

   102   bool _drawArrows;

   103   double _arrowLength, _arrowWidth;

   105   bool _showNodes, _showArcs;

   107   bool _enableParallel;

   108   double _parArcDist;

   110   bool _showNodeText;

   111   ConstMap<typename Graph::Node,bool > _nodeTexts;

   112   double _nodeTextSize;

   114   bool _showNodePsText;

   115   ConstMap<typename Graph::Node,bool > _nodePsTexts;

   116   char *_nodePsTextsPreamble;

   118   bool _undirected;

   120   bool _pleaseRemoveOsStream;

   122   bool _scaleToA4;

   124   std::string _title;

   125   std::string _copyright;

   127   enum NodeTextColorType

   128     { DIST_COL=0, DIST_BW=1, CUST_COL=2, SAME_COL=3 } _nodeTextColorType;

   129   ConstMap<typename Graph::Node,Color > _nodeTextColors;

   131   bool _autoNodeScale;

   132   bool _autoArcWidthScale;

   134   bool _absoluteNodeSizes;

   135   bool _absoluteArcWidths;

   137   bool _negY;

   139   bool _preScale;

   140   ///Constructor

   142   ///Constructor

   143   ///\param _g  Reference to the graph to be printed.

   144   ///\param _os Reference to the output stream.

   145   ///\param _os Reference to the output stream.

   146   ///By default it is <tt>std::cout</tt>.

   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   DefaultGraphToEpsTraits(const G &_g,std::ostream& _os=std::cout,

   150                           bool _pros=false) :

   151     g(_g), os(_os),

   152     _coords(dim2::Point<double>(1,1)), _nodeSizes(1), _nodeShapes(0),

   153     _nodeColors(WHITE), _arcColors(BLACK),

   154     _arcWidths(1.0), _arcWidthScale(0.003),

   155     _nodeScale(.01), _xBorder(10), _yBorder(10), _scale(1.0),

   156     _nodeBorderQuotient(.1),

   157     _drawArrows(false), _arrowLength(1), _arrowWidth(0.3),

   158     _showNodes(true), _showArcs(true),

   159     _enableParallel(false), _parArcDist(1),

   160     _showNodeText(false), _nodeTexts(false), _nodeTextSize(1),

   161     _showNodePsText(false), _nodePsTexts(false), _nodePsTextsPreamble(0),

   162     _undirected(lemon::UndirectedTagIndicator<G>::value),

   163     _pleaseRemoveOsStream(_pros), _scaleToA4(false),

   164     _nodeTextColorType(SAME_COL), _nodeTextColors(BLACK),

   165     _autoNodeScale(false),

   166     _autoArcWidthScale(false),

   167     _absoluteNodeSizes(false),

   168     _absoluteArcWidths(false),

   169     _negY(false),

   170     _preScale(true)

   171   {}

   172 };

   174 ///Auxiliary class to implement the named parameters of \ref graphToEps()

   176 ///Auxiliary class to implement the named parameters of \ref graphToEps().

   177 ///

   178 ///For detailed examples see the \ref graph_to_eps_demo.cc demo file.

   179 template<class T> class GraphToEps : public T

   180 {

   181   // Can't believe it is required by the C++ standard

   182   using T::g;

   183   using T::os;

   185   using T::_coords;

   186   using T::_nodeSizes;

   187   using T::_nodeShapes;

   188   using T::_nodeColors;

   189   using T::_arcColors;

   190   using T::_arcWidths;

   192   using T::_arcWidthScale;

   193   using T::_nodeScale;

   194   using T::_xBorder;

   195   using T::_yBorder;

   196   using T::_scale;

   197   using T::_nodeBorderQuotient;

   199   using T::_drawArrows;

   200   using T::_arrowLength;

   201   using T::_arrowWidth;

   203   using T::_showNodes;

   204   using T::_showArcs;

   206   using T::_enableParallel;

   207   using T::_parArcDist;

   209   using T::_showNodeText;

   210   using T::_nodeTexts;

   211   using T::_nodeTextSize;

   213   using T::_showNodePsText;

   214   using T::_nodePsTexts;

   215   using T::_nodePsTextsPreamble;

   217   using T::_undirected;

   219   using T::_pleaseRemoveOsStream;

   221   using T::_scaleToA4;

   223   using T::_title;

   224   using T::_copyright;

   226   using T::NodeTextColorType;

   227   using T::CUST_COL;

   228   using T::DIST_COL;

   229   using T::DIST_BW;

   230   using T::_nodeTextColorType;

   231   using T::_nodeTextColors;

   233   using T::_autoNodeScale;

   234   using T::_autoArcWidthScale;

   236   using T::_absoluteNodeSizes;

   237   using T::_absoluteArcWidths;

   240   using T::_negY;

   241   using T::_preScale;

   243   // dradnats ++C eht yb deriuqer si ti eveileb t'naC

   245   typedef typename T::Graph Graph;

   246   typedef typename Graph::Node Node;

   247   typedef typename Graph::NodeIt NodeIt;

   248   typedef typename Graph::Arc Arc;

   249   typedef typename Graph::ArcIt ArcIt;

   250   typedef typename Graph::InArcIt InArcIt;

   251   typedef typename Graph::OutArcIt OutArcIt;

   253   static const int INTERPOL_PREC;

   254   static const double A4HEIGHT;

   255   static const double A4WIDTH;

   256   static const double A4BORDER;

   258   bool dontPrint;

   260 public:

   261   ///Node shapes

   263   ///Node shapes.

   264   ///

   265   enum NodeShapes {

   266     /// = 0

   267     ///\image html nodeshape_0.png

   268     ///\image latex nodeshape_0.eps "CIRCLE shape (0)" width=2cm

   269     CIRCLE=0,

   270     /// = 1

   271     ///\image html nodeshape_1.png

   272     ///\image latex nodeshape_1.eps "SQUARE shape (1)" width=2cm

   273     ///

   274     SQUARE=1,

   275     /// = 2

   276     ///\image html nodeshape_2.png

   277     ///\image latex nodeshape_2.eps "DIAMOND shape (2)" width=2cm

   278     ///

   279     DIAMOND=2,

   280     /// = 3

   281     ///\image html nodeshape_3.png

   282     ///\image latex nodeshape_2.eps "MALE shape (4)" width=2cm

   283     ///

   284     MALE=3,

   285     /// = 4

   286     ///\image html nodeshape_4.png

   287     ///\image latex nodeshape_2.eps "FEMALE shape (4)" width=2cm

   288     ///

   289     FEMALE=4

   290   };

   292 private:

   293   class arcLess {

   294     const Graph &g;

   295   public:

   296     arcLess(const Graph &_g) : g(_g) {}

   297     bool operator()(Arc a,Arc b) const

   298     {

   299       Node ai=std::min(g.source(a),g.target(a));

   300       Node aa=std::max(g.source(a),g.target(a));

   301       Node bi=std::min(g.source(b),g.target(b));

   302       Node ba=std::max(g.source(b),g.target(b));

   303       return ai<bi ||

   304         (ai==bi && (aa < ba ||

   305                     (aa==ba && ai==g.source(a) && bi==g.target(b))));

   306     }

   307   };

   308   bool isParallel(Arc e,Arc f) const

   309   {

   310     return (g.source(e)==g.source(f)&&

   311             g.target(e)==g.target(f)) ||

   312       (g.source(e)==g.target(f)&&

   313        g.target(e)==g.source(f));

   314   }

   315   template<class TT>

   316   static std::string psOut(const dim2::Point<TT> &p)

   317     {

   318       std::ostringstream os;

   319       os << p.x << ' ' << p.y;

   320       return os.str();

   321     }

   322   static std::string psOut(const Color &c)

   323     {

   324       std::ostringstream os;

   325       os << c.red() << ' ' << c.green() << ' ' << c.blue();

   326       return os.str();

   327     }

   329 public:

   330   GraphToEps(const T &t) : T(t), dontPrint(false) {};

   332   template<class X> struct CoordsTraits : public T {

   333   typedef X CoordsMapType;

   334     const X &_coords;

   335     CoordsTraits(const T &t,const X &x) : T(t), _coords(x) {}

   336   };

   337   ///Sets the map of the node coordinates

   339   ///Sets the map of the node coordinates.

   340   ///\param x must be a node map with \ref dim2::Point "dim2::Point<double>" or

   341   ///\ref dim2::Point "dim2::Point<int>" values.

   342   template<class X> GraphToEps<CoordsTraits<X> > coords(const X &x) {

   343     dontPrint=true;

   344     return GraphToEps<CoordsTraits<X> >(CoordsTraits<X>(*this,x));

   345   }

   346   template<class X> struct NodeSizesTraits : public T {

   347     const X &_nodeSizes;

   348     NodeSizesTraits(const T &t,const X &x) : T(t), _nodeSizes(x) {}

   349   };

   350   ///Sets the map of the node sizes

   352   ///Sets the map of the node sizes.

   353   ///\param x must be a node map with \c double (or convertible) values.

   354   template<class X> GraphToEps<NodeSizesTraits<X> > nodeSizes(const X &x)

   355   {

   356     dontPrint=true;

   357     return GraphToEps<NodeSizesTraits<X> >(NodeSizesTraits<X>(*this,x));

   358   }

   359   template<class X> struct NodeShapesTraits : public T {

   360     const X &_nodeShapes;

   361     NodeShapesTraits(const T &t,const X &x) : T(t), _nodeShapes(x) {}

   362   };

   363   ///Sets the map of the node shapes

   365   ///Sets the map of the node shapes.

   366   ///The available shape values

   367   ///can be found in \ref NodeShapes "enum NodeShapes".

   368   ///\param x must be a node map with \c int (or convertible) values.

   369   ///\sa NodeShapes

   370   template<class X> GraphToEps<NodeShapesTraits<X> > nodeShapes(const X &x)

   371   {

   372     dontPrint=true;

   373     return GraphToEps<NodeShapesTraits<X> >(NodeShapesTraits<X>(*this,x));

   374   }

   375   template<class X> struct NodeTextsTraits : public T {

   376     const X &_nodeTexts;

   377     NodeTextsTraits(const T &t,const X &x) : T(t), _nodeTexts(x) {}

   378   };

   379   ///Sets the text printed on the nodes

   381   ///Sets the text printed on the nodes.

   382   ///\param x must be a node map with type that can be pushed to a standard

   383   ///\c ostream.

   384   template<class X> GraphToEps<NodeTextsTraits<X> > nodeTexts(const X &x)

   385   {

   386     dontPrint=true;

   387     _showNodeText=true;

   388     return GraphToEps<NodeTextsTraits<X> >(NodeTextsTraits<X>(*this,x));

   389   }

   390   template<class X> struct NodePsTextsTraits : public T {

   391     const X &_nodePsTexts;

   392     NodePsTextsTraits(const T &t,const X &x) : T(t), _nodePsTexts(x) {}

   393   };

   394   ///Inserts a PostScript block to the nodes

   396   ///With this command it is possible to insert a verbatim PostScript

   397   ///block to the nodes.

   398   ///The PS current point will be moved to the center of the node before

   399   ///the PostScript block inserted.

   400   ///

   401   ///Before and after the block a newline character is inserted so you

   402   ///don't have to bother with the separators.

   403   ///

   404   ///\param x must be a node map with type that can be pushed to a standard

   405   ///\c ostream.

   406   ///

   407   ///\sa nodePsTextsPreamble()

   408   template<class X> GraphToEps<NodePsTextsTraits<X> > nodePsTexts(const X &x)

   409   {

   410     dontPrint=true;

   411     _showNodePsText=true;

   412     return GraphToEps<NodePsTextsTraits<X> >(NodePsTextsTraits<X>(*this,x));

   413   }

   414   template<class X> struct ArcWidthsTraits : public T {

   415     const X &_arcWidths;

   416     ArcWidthsTraits(const T &t,const X &x) : T(t), _arcWidths(x) {}

   417   };

   418   ///Sets the map of the arc widths

   420   ///Sets the map of the arc widths.

   421   ///\param x must be an arc map with \c double (or convertible) values.

   422   template<class X> GraphToEps<ArcWidthsTraits<X> > arcWidths(const X &x)

   423   {

   424     dontPrint=true;

   425     return GraphToEps<ArcWidthsTraits<X> >(ArcWidthsTraits<X>(*this,x));

   426   }

   428   template<class X> struct NodeColorsTraits : public T {

   429     const X &_nodeColors;

   430     NodeColorsTraits(const T &t,const X &x) : T(t), _nodeColors(x) {}

   431   };

   432   ///Sets the map of the node colors

   434   ///Sets the map of the node colors.

   435   ///\param x must be a node map with \ref Color values.

   436   ///

   437   ///\sa Palette

   438   template<class X> GraphToEps<NodeColorsTraits<X> >

   439   nodeColors(const X &x)

   440   {

   441     dontPrint=true;

   442     return GraphToEps<NodeColorsTraits<X> >(NodeColorsTraits<X>(*this,x));

   443   }

   444   template<class X> struct NodeTextColorsTraits : public T {

   445     const X &_nodeTextColors;

   446     NodeTextColorsTraits(const T &t,const X &x) : T(t), _nodeTextColors(x) {}

   447   };

   448   ///Sets the map of the node text colors

   450   ///Sets the map of the node text colors.

   451   ///\param x must be a node map with \ref Color values.

   452   ///

   453   ///\sa Palette

   454   template<class X> GraphToEps<NodeTextColorsTraits<X> >

   455   nodeTextColors(const X &x)

   456   {

   457     dontPrint=true;

   458     _nodeTextColorType=CUST_COL;

   459     return GraphToEps<NodeTextColorsTraits<X> >

   460       (NodeTextColorsTraits<X>(*this,x));

   461   }

   462   template<class X> struct ArcColorsTraits : public T {

   463     const X &_arcColors;

   464     ArcColorsTraits(const T &t,const X &x) : T(t), _arcColors(x) {}

   465   };

   466   ///Sets the map of the arc colors

   468   ///Sets the map of the arc colors.

   469   ///\param x must be an arc map with \ref Color values.

   470   ///

   471   ///\sa Palette

   472   template<class X> GraphToEps<ArcColorsTraits<X> >

   473   arcColors(const X &x)

   474   {

   475     dontPrint=true;

   476     return GraphToEps<ArcColorsTraits<X> >(ArcColorsTraits<X>(*this,x));

   477   }

   478   ///Sets a global scale factor for node sizes

   480   ///Sets a global scale factor for node sizes.

   481   ///

   482   /// If nodeSizes() is not given, this function simply sets the node

   483   /// sizes to \c d.  If nodeSizes() is given, but

   484   /// autoNodeScale() is not, then the node size given by

   485   /// nodeSizes() will be multiplied by the value \c d.

   486   /// If both nodeSizes() and autoNodeScale() are used, then the

   487   /// node sizes will be scaled in such a way that the greatest size will be

   488   /// equal to \c d.

   489   /// \sa nodeSizes()

   490   /// \sa autoNodeScale()

   491   GraphToEps<T> &nodeScale(double d=.01) {_nodeScale=d;return *this;}

   492   ///Turns on/off the automatic node size scaling.

   494   ///Turns on/off the automatic node size scaling.

   495   ///

   496   ///\sa nodeScale()

   497   ///

   498   GraphToEps<T> &autoNodeScale(bool b=true) {

   499     _autoNodeScale=b;return *this;

   500   }

   502   ///Turns on/off the absolutematic node size scaling.

   504   ///Turns on/off the absolutematic node size scaling.

   505   ///

   506   ///\sa nodeScale()

   507   ///

   508   GraphToEps<T> &absoluteNodeSizes(bool b=true) {

   509     _absoluteNodeSizes=b;return *this;

   510   }

   512   ///Negates the Y coordinates.

   513   GraphToEps<T> &negateY(bool b=true) {

   514     _negY=b;return *this;

   515   }

   517   ///Turn on/off pre-scaling

   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   }

   528   ///Sets a global scale factor for arc widths

   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.

   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.

   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   GraphToEps<T> &scale(double d) {_scale=d;return *this;}

   560   ///Sets the width of the border around the picture

   561   GraphToEps<T> &border(double b=10) {_xBorder=_yBorder=b;return *this;}

   562   ///Sets the width of the border around the picture

   563   GraphToEps<T> &border(double x, double y) {

   564     _xBorder=x;_yBorder=y;return *this;

   565   }

   566   ///Sets whether to draw arrows

   567   GraphToEps<T> &drawArrows(bool b=true) {_drawArrows=b;return *this;}

   568   ///Sets the length of the arrowheads

   569   GraphToEps<T> &arrowLength(double d=1.0) {_arrowLength*=d;return *this;}

   570   ///Sets the width of the arrowheads

   571   GraphToEps<T> &arrowWidth(double d=.3) {_arrowWidth*=d;return *this;}

   573   ///Scales the drawing to fit to A4 page

   574   GraphToEps<T> &scaleToA4() {_scaleToA4=true;return *this;}

   576   ///Enables parallel arcs

   577   GraphToEps<T> &enableParallel(bool b=true) {_enableParallel=b;return *this;}

   579   ///Sets the distance between parallel arcs

   580   GraphToEps<T> &parArcDist(double d) {_parArcDist*=d;return *this;}

   582   ///Hides the arcs

   583   GraphToEps<T> &hideArcs(bool b=true) {_showArcs=!b;return *this;}

   584   ///Hides the nodes

   585   GraphToEps<T> &hideNodes(bool b=true) {_showNodes=!b;return *this;}

   587   ///Sets the size of the node texts

   588   GraphToEps<T> &nodeTextSize(double d) {_nodeTextSize=d;return *this;}

   590   ///Sets the color of the node texts to be different from the node color

   592   ///Sets the color of the node texts to be as different from the node color

   593   ///as it is possible.

   594   GraphToEps<T> &distantColorNodeTexts()

   595   {_nodeTextColorType=DIST_COL;return *this;}

   596   ///Sets the color of the node texts to be black or white and always visible.

   598   ///Sets the color of the node texts to be black or white according to

   599   ///which is more different from the node color.

   600   GraphToEps<T> &distantBWNodeTexts()

   601   {_nodeTextColorType=DIST_BW;return *this;}

   603   ///Gives a preamble block for node Postscript block.

   605   ///Gives a preamble block for node Postscript block.

   606   ///

   607   ///\sa nodePsTexts()

   608   GraphToEps<T> & nodePsTextsPreamble(const char *str) {

   609     _nodePsTextsPreamble=str ;return *this;

   610   }

   611   ///Sets whether the graph is undirected

   613   ///Sets whether the graph is undirected.

   614   ///

   615   ///This setting is the default for undirected graphs.

   616   ///

   617   ///\sa directed()

   618    GraphToEps<T> &undirected(bool b=true) {_undirected=b;return *this;}

   620   ///Sets whether the graph is directed

   622   ///Sets whether the graph is directed.

   623   ///Use it to show the edges as a pair of directed ones.

   624   ///

   625   ///This setting is the default for digraphs.

   626   ///

   627   ///\sa undirected()

   628   GraphToEps<T> &directed(bool b=true) {_undirected=!b;return *this;}

   630   ///Sets the title.

   632   ///Sets the title of the generated image,

   633   ///namely it inserts a <tt>%%Title:</tt> DSC field to the header of

   634   ///the EPS file.

   635   GraphToEps<T> &title(const std::string &t) {_title=t;return *this;}

   636   ///Sets the copyright statement.

   638   ///Sets the copyright statement of the generated image,

   639   ///namely it inserts a <tt>%%Copyright:</tt> DSC field to the header of

   640   ///the EPS file.

   641   GraphToEps<T> &copyright(const std::string &t) {_copyright=t;return *this;}

   643 protected:

   644   bool isInsideNode(dim2::Point<double> p, double r,int t)

   645   {

   646     switch(t) {

   647     case CIRCLE:

   648     case MALE:

   649     case FEMALE:

   650       return p.normSquare()<=r*r;

   651     case SQUARE:

   652       return p.x<=r&&p.x>=-r&&p.y<=r&&p.y>=-r;

   653     case DIAMOND:

   654       return p.x+p.y<=r && p.x-p.y<=r && -p.x+p.y<=r && -p.x-p.y<=r;

   655     }

   656     return false;

   657   }

   659 public:

   660   ~GraphToEps() { }

   662   ///Draws the graph.

   664   ///Like other functions using

   665   ///\ref named-templ-func-param "named template parameters",

   666   ///this function calls the algorithm itself, i.e. in this case

   667   ///it draws the graph.

   668   void run() {

   669     const double EPSILON=1e-9;

   670     if(dontPrint) return;

   672     _graph_to_eps_bits::_NegY<typename T::CoordsMapType>

   673       mycoords(_coords,_negY);

   675     os << "%!PS-Adobe-2.0 EPSF-2.0\n";

   676     if(_title.size()>0) os << "%%Title: " << _title << '\n';

   677      if(_copyright.size()>0) os << "%%Copyright: " << _copyright << '\n';

   678     os << "%%Creator: LEMON, graphToEps()\n";

   680     {

   681 #ifndef WIN32

   682       timeval tv;

   683       gettimeofday(&tv, 0);

   685       char cbuf[26];

   686       ctime_r(&tv.tv_sec,cbuf);

   687       os << "%%CreationDate: " << cbuf;

   688 #else

   689       SYSTEMTIME time;

   690       char buf1[11], buf2[9], buf3[5];

   692       GetSystemTime(&time);

   693       if (GetDateFormat(LOCALE_USER_DEFAULT, 0, &time,

   694                         "ddd MMM dd", buf1, 11) &&

   695           GetTimeFormat(LOCALE_USER_DEFAULT, 0, &time,

   696                         "HH':'mm':'ss", buf2, 9) &&

   697           GetDateFormat(LOCALE_USER_DEFAULT, 0, &time,

   698                                 "yyyy", buf3, 5)) {

   699         os << "%%CreationDate: " << buf1 << ' '

   700            << buf2 << ' ' << buf3 << std::endl;

   701       }

   702 #endif

   703     }

   705     if (_autoArcWidthScale) {

   706       double max_w=0;

   707       for(ArcIt e(g);e!=INVALID;++e)

   708         max_w=std::max(double(_arcWidths[e]),max_w);

   709       if(max_w>EPSILON) {

   710         _arcWidthScale/=max_w;

   711       }

   712     }

   714     if (_autoNodeScale) {

   715       double max_s=0;

   716       for(NodeIt n(g);n!=INVALID;++n)

   717         max_s=std::max(double(_nodeSizes[n]),max_s);

   718       if(max_s>EPSILON) {

   719         _nodeScale/=max_s;

   720       }

   721     }

   723     double diag_len = 1;

   724     if(!(_absoluteNodeSizes&&_absoluteArcWidths)) {

   725       dim2::Box<double> bb;

   726       for(NodeIt n(g);n!=INVALID;++n) bb.add(mycoords[n]);

   727       if (bb.empty()) {

   728         bb = dim2::Box<double>(dim2::Point<double>(0,0));

   729       }

   730       diag_len = std::sqrt((bb.bottomLeft()-bb.topRight()).normSquare());

   731       if(diag_len<EPSILON) diag_len = 1;

   732       if(!_absoluteNodeSizes) _nodeScale*=diag_len;

   733       if(!_absoluteArcWidths) _arcWidthScale*=diag_len;

   734     }

   736     dim2::Box<double> bb;

   737     for(NodeIt n(g);n!=INVALID;++n) {

   738       double ns=_nodeSizes[n]*_nodeScale;

   739       dim2::Point<double> p(ns,ns);

   740       switch(_nodeShapes[n]) {

   741       case CIRCLE:

   742       case SQUARE:

   743       case DIAMOND:

   744         bb.add(p+mycoords[n]);

   745         bb.add(-p+mycoords[n]);

   746         break;

   747       case MALE:

   748         bb.add(-p+mycoords[n]);

   749         bb.add(dim2::Point<double>(1.5*ns,1.5*std::sqrt(3.0)*ns)+mycoords[n]);

   750         break;

   751       case FEMALE:

   752         bb.add(p+mycoords[n]);

   753         bb.add(dim2::Point<double>(-ns,-3.01*ns)+mycoords[n]);

   754         break;

   755       }

   756     }

   757     if (bb.empty()) {

   758       bb = dim2::Box<double>(dim2::Point<double>(0,0));

   759     }

   761     if(_scaleToA4)

   762       os <<"%%BoundingBox: 0 0 596 842\n%%DocumentPaperSizes: a4\n";

   763     else {

   764       if(_preScale) {

   765         //Rescale so that BoundingBox won't be neither to big nor too small.

   766         while(bb.height()*_scale>1000||bb.width()*_scale>1000) _scale/=10;

   767         while(bb.height()*_scale<100||bb.width()*_scale<100) _scale*=10;

   768       }

   770       os << "%%BoundingBox: "

   771          << int(floor(bb.left()   * _scale - _xBorder)) << ' '

   772          << int(floor(bb.bottom() * _scale - _yBorder)) << ' '

   773          << int(ceil(bb.right()  * _scale + _xBorder)) << ' '

   774          << int(ceil(bb.top()    * _scale + _yBorder)) << '\n';

   775     }

   777     os << "%%EndComments\n";

   779     //x1 y1 x2 y2 x3 y3 cr cg cb w

   780     os << "/lb { setlinewidth setrgbcolor newpath moveto\n"

   781        << "      4 2 roll 1 index 1 index curveto stroke } bind def\n";

   782     os << "/l { setlinewidth setrgbcolor newpath moveto lineto stroke }"

   783        << " bind def\n";

   784     //x y r

   785     os << "/c { newpath dup 3 index add 2 index moveto 0 360 arc closepath }"

   786        << " bind def\n";

   787     //x y r

   788     os << "/sq { newpath 2 index 1 index add 2 index 2 index add moveto\n"

   789        << "      2 index 1 index sub 2 index 2 index add lineto\n"

   790        << "      2 index 1 index sub 2 index 2 index sub lineto\n"

   791        << "      2 index 1 index add 2 index 2 index sub lineto\n"

   792        << "      closepath pop pop pop} bind def\n";

   793     //x y r

   794     os << "/di { newpath 2 index 1 index add 2 index moveto\n"

   795        << "      2 index             2 index 2 index add lineto\n"

   796        << "      2 index 1 index sub 2 index             lineto\n"

   797        << "      2 index             2 index 2 index sub lineto\n"

   798        << "      closepath pop pop pop} bind def\n";

   799     // x y r cr cg cb

   800     os << "/nc { 0 0 0 setrgbcolor 5 index 5 index 5 index c fill\n"

   801        << "     setrgbcolor " << 1+_nodeBorderQuotient << " div c fill\n"

   802        << "   } bind def\n";

   803     os << "/nsq { 0 0 0 setrgbcolor 5 index 5 index 5 index sq fill\n"

   804        << "     setrgbcolor " << 1+_nodeBorderQuotient << " div sq fill\n"

   805        << "   } bind def\n";

   806     os << "/ndi { 0 0 0 setrgbcolor 5 index 5 index 5 index di fill\n"

   807        << "     setrgbcolor " << 1+_nodeBorderQuotient << " div di fill\n"

   808        << "   } bind def\n";

   809     os << "/nfemale { 0 0 0 setrgbcolor 3 index "

   810        << _nodeBorderQuotient/(1+_nodeBorderQuotient)

   811        << " 1.5 mul mul setlinewidth\n"

   812        << "  newpath 5 index 5 index moveto "

   813        << "5 index 5 index 5 index 3.01 mul sub\n"

   814        << "  lineto 5 index 4 index .7 mul sub 5 index 5 index 2.2 mul sub"

   815        << " moveto\n"

   816        << "  5 index 4 index .7 mul add 5 index 5 index 2.2 mul sub lineto "

   817        << "stroke\n"

   818        << "  5 index 5 index 5 index c fill\n"

   819        << "  setrgbcolor " << 1+_nodeBorderQuotient << " div c fill\n"

   820        << "  } bind def\n";

   821     os << "/nmale {\n"

   822        << "  0 0 0 setrgbcolor 3 index "

   823        << _nodeBorderQuotient/(1+_nodeBorderQuotient)

   824        <<" 1.5 mul mul setlinewidth\n"

   825        << "  newpath 5 index 5 index moveto\n"

   826        << "  5 index 4 index 1 mul 1.5 mul add\n"

   827        << "  5 index 5 index 3 sqrt 1.5 mul mul add\n"

   828        << "  1 index 1 index lineto\n"

   829        << "  1 index 1 index 7 index sub moveto\n"

   830        << "  1 index 1 index lineto\n"

   831        << "  exch 5 index 3 sqrt .5 mul mul sub exch 5 index .5 mul sub"

   832        << " lineto\n"

   833        << "  stroke\n"

   834        << "  5 index 5 index 5 index c fill\n"

   835        << "  setrgbcolor " << 1+_nodeBorderQuotient << " div c fill\n"

   836        << "  } bind def\n";

   839     os << "/arrl " << _arrowLength << " def\n";

   840     os << "/arrw " << _arrowWidth << " def\n";

   841     // l dx_norm dy_norm

   842     os << "/lrl { 2 index mul exch 2 index mul exch rlineto pop} bind def\n";

   843     //len w dx_norm dy_norm x1 y1 cr cg cb

   844     os << "/arr { setrgbcolor /y1 exch def /x1 exch def /dy exch def /dx "

   845        << "exch def\n"

   846        << "       /w exch def /len exch def\n"

   847       //<< "0.1 setlinewidth x1 y1 moveto dx len mul dy len mul rlineto stroke"

   848        << "       newpath x1 dy w 2 div mul add y1 dx w 2 div mul sub moveto\n"

   849        << "       len w sub arrl sub dx dy lrl\n"

   850        << "       arrw dy dx neg lrl\n"

   851        << "       dx arrl w add mul dy w 2 div arrw add mul sub\n"

   852        << "       dy arrl w add mul dx w 2 div arrw add mul add rlineto\n"

   853        << "       dx arrl w add mul neg dy w 2 div arrw add mul sub\n"

   854        << "       dy arrl w add mul neg dx w 2 div arrw add mul add rlineto\n"

   855        << "       arrw dy dx neg lrl\n"

   856        << "       len w sub arrl sub neg dx dy lrl\n"

   857        << "       closepath fill } bind def\n";

   858     os << "/cshow { 2 index 2 index moveto dup stringwidth pop\n"

   859        << "         neg 2 div fosi .35 mul neg rmoveto show pop pop} def\n";

   861     os << "\ngsave\n";

   862     if(_scaleToA4)

   863       if(bb.height()>bb.width()) {

   864         double sc= std::min((A4HEIGHT-2*A4BORDER)/bb.height(),

   865                   (A4WIDTH-2*A4BORDER)/bb.width());

   866         os << ((A4WIDTH -2*A4BORDER)-sc*bb.width())/2 + A4BORDER << ' '

   867            << ((A4HEIGHT-2*A4BORDER)-sc*bb.height())/2 + A4BORDER

   868            << " translate\n"

   869            << sc << " dup scale\n"

   870            << -bb.left() << ' ' << -bb.bottom() << " translate\n";

   871       }

   872       else {

   873         double sc= std::min((A4HEIGHT-2*A4BORDER)/bb.width(),

   874                   (A4WIDTH-2*A4BORDER)/bb.height());

   875         os << ((A4WIDTH -2*A4BORDER)-sc*bb.height())/2 + A4BORDER << ' '

   876            << ((A4HEIGHT-2*A4BORDER)-sc*bb.width())/2 + A4BORDER

   877            << " translate\n"

   878            << sc << " dup scale\n90 rotate\n"

   879            << -bb.left() << ' ' << -bb.top() << " translate\n";

   880         }

   881     else if(_scale!=1.0) os << _scale << " dup scale\n";

   883     if(_showArcs) {

   884       os << "%Arcs:\ngsave\n";

   885       if(_enableParallel) {

   886         std::vector<Arc> el;

   887         for(ArcIt e(g);e!=INVALID;++e)

   888           if((!_undirected||g.source(e)<g.target(e))&&_arcWidths[e]>0

   889              &&g.source(e)!=g.target(e))

   890             el.push_back(e);

   891         std::sort(el.begin(),el.end(),arcLess(g));

   893         typename std::vector<Arc>::iterator j;

   894         for(typename std::vector<Arc>::iterator i=el.begin();i!=el.end();i=j) {

   895           for(j=i+1;j!=el.end()&&isParallel(*i,*j);++j) ;

   897           double sw=0;

   898           for(typename std::vector<Arc>::iterator e=i;e!=j;++e)

   899             sw+=_arcWidths[*e]*_arcWidthScale+_parArcDist;

   900           sw-=_parArcDist;

   901           sw/=-2.0;

   902           dim2::Point<double>

   903             dvec(mycoords[g.target(*i)]-mycoords[g.source(*i)]);

   904           double l=std::sqrt(dvec.normSquare());

   905           dim2::Point<double> d(dvec/std::max(l,EPSILON));

   906           dim2::Point<double> m;

   907 //           m=dim2::Point<double>(mycoords[g.target(*i)]+

   908 //                                 mycoords[g.source(*i)])/2.0;

   910 //            m=dim2::Point<double>(mycoords[g.source(*i)])+

   911 //             dvec*(double(_nodeSizes[g.source(*i)])/

   912 //                (_nodeSizes[g.source(*i)]+_nodeSizes[g.target(*i)]));

   914           m=dim2::Point<double>(mycoords[g.source(*i)])+

   915             d*(l+_nodeSizes[g.source(*i)]-_nodeSizes[g.target(*i)])/2.0;

   917           for(typename std::vector<Arc>::iterator e=i;e!=j;++e) {

   918             sw+=_arcWidths[*e]*_arcWidthScale/2.0;

   919             dim2::Point<double> mm=m+rot90(d)*sw/.75;

   920             if(_drawArrows) {

   921               int node_shape;

   922               dim2::Point<double> s=mycoords[g.source(*e)];

   923               dim2::Point<double> t=mycoords[g.target(*e)];

   924               double rn=_nodeSizes[g.target(*e)]*_nodeScale;

   925               node_shape=_nodeShapes[g.target(*e)];

   926               dim2::Bezier3 bez(s,mm,mm,t);

   927               double t1=0,t2=1;

   928               for(int ii=0;ii<INTERPOL_PREC;++ii)

   929                 if(isInsideNode(bez((t1+t2)/2)-t,rn,node_shape)) t2=(t1+t2)/2;

   930                 else t1=(t1+t2)/2;

   931               dim2::Point<double> apoint=bez((t1+t2)/2);

   932               rn = _arrowLength+_arcWidths[*e]*_arcWidthScale;

   933               rn*=rn;

   934               t2=(t1+t2)/2;t1=0;

   935               for(int ii=0;ii<INTERPOL_PREC;++ii)

   936                 if((bez((t1+t2)/2)-apoint).normSquare()>rn) t1=(t1+t2)/2;

   937                 else t2=(t1+t2)/2;

   938               dim2::Point<double> linend=bez((t1+t2)/2);

   939               bez=bez.before((t1+t2)/2);

   940 //               rn=_nodeSizes[g.source(*e)]*_nodeScale;

   941 //               node_shape=_nodeShapes[g.source(*e)];

   942 //               t1=0;t2=1;

   943 //               for(int i=0;i<INTERPOL_PREC;++i)

   944 //                 if(isInsideNode(bez((t1+t2)/2)-t,rn,node_shape))

   945 //                   t1=(t1+t2)/2;

   946 //                 else t2=(t1+t2)/2;

   947 //               bez=bez.after((t1+t2)/2);

   948               os << _arcWidths[*e]*_arcWidthScale << " setlinewidth "

   949                  << _arcColors[*e].red() << ' '

   950                  << _arcColors[*e].green() << ' '

   951                  << _arcColors[*e].blue() << " setrgbcolor newpath\n"

   952                  << bez.p1.x << ' ' <<  bez.p1.y << " moveto\n"

   953                  << bez.p2.x << ' ' << bez.p2.y << ' '

   954                  << bez.p3.x << ' ' << bez.p3.y << ' '

   955                  << bez.p4.x << ' ' << bez.p4.y << " curveto stroke\n";

   956               dim2::Point<double> dd(rot90(linend-apoint));

   957               dd*=(.5*_arcWidths[*e]*_arcWidthScale+_arrowWidth)/

   958                 std::sqrt(dd.normSquare());

   959               os << "newpath " << psOut(apoint) << " moveto "

   960                  << psOut(linend+dd) << " lineto "

   961                  << psOut(linend-dd) << " lineto closepath fill\n";

   962             }

   963             else {

   964               os << mycoords[g.source(*e)].x << ' '

   965                  << mycoords[g.source(*e)].y << ' '

   966                  << mm.x << ' ' << mm.y << ' '

   967                  << mycoords[g.target(*e)].x << ' '

   968                  << mycoords[g.target(*e)].y << ' '

   969                  << _arcColors[*e].red() << ' '

   970                  << _arcColors[*e].green() << ' '

   971                  << _arcColors[*e].blue() << ' '

   972                  << _arcWidths[*e]*_arcWidthScale << " lb\n";

   973             }

   974             sw+=_arcWidths[*e]*_arcWidthScale/2.0+_parArcDist;

   975           }

   976         }

   977       }

   978       else for(ArcIt e(g);e!=INVALID;++e)

   979         if((!_undirected||g.source(e)<g.target(e))&&_arcWidths[e]>0

   980            &&g.source(e)!=g.target(e)) {

   981           if(_drawArrows) {

   982             dim2::Point<double> d(mycoords[g.target(e)]-mycoords[g.source(e)]);

   983             double rn=_nodeSizes[g.target(e)]*_nodeScale;

   984             int node_shape=_nodeShapes[g.target(e)];

   985             double t1=0,t2=1;

   986             for(int i=0;i<INTERPOL_PREC;++i)

   987               if(isInsideNode((-(t1+t2)/2)*d,rn,node_shape)) t1=(t1+t2)/2;

   988               else t2=(t1+t2)/2;

   989             double l=std::sqrt(d.normSquare());

   990             d/=l;

   992             os << l*(1-(t1+t2)/2) << ' '

   993                << _arcWidths[e]*_arcWidthScale << ' '

   994                << d.x << ' ' << d.y << ' '

   995                << mycoords[g.source(e)].x << ' '

   996                << mycoords[g.source(e)].y << ' '

   997                << _arcColors[e].red() << ' '

   998                << _arcColors[e].green() << ' '

   999                << _arcColors[e].blue() << " arr\n";

  1000           }

  1001           else os << mycoords[g.source(e)].x << ' '

  1002                   << mycoords[g.source(e)].y << ' '

  1003                   << mycoords[g.target(e)].x << ' '

  1004                   << mycoords[g.target(e)].y << ' '

  1005                   << _arcColors[e].red() << ' '

  1006                   << _arcColors[e].green() << ' '

  1007                   << _arcColors[e].blue() << ' '

  1008                   << _arcWidths[e]*_arcWidthScale << " l\n";

  1009         }

  1010       os << "grestore\n";

  1011     }

  1012     if(_showNodes) {

  1013       os << "%Nodes:\ngsave\n";

  1014       for(NodeIt n(g);n!=INVALID;++n) {

  1015         os << mycoords[n].x << ' ' << mycoords[n].y << ' '

  1016            << _nodeSizes[n]*_nodeScale << ' '

  1017            << _nodeColors[n].red() << ' '

  1018            << _nodeColors[n].green() << ' '

  1019            << _nodeColors[n].blue() << ' ';

  1020         switch(_nodeShapes[n]) {

  1021         case CIRCLE:

  1022           os<< "nc";break;

  1023         case SQUARE:

  1024           os<< "nsq";break;

  1025         case DIAMOND:

  1026           os<< "ndi";break;

  1027         case MALE:

  1028           os<< "nmale";break;

  1029         case FEMALE:

  1030           os<< "nfemale";break;

  1031         }

  1032         os<<'\n';

  1033       }

  1034       os << "grestore\n";

  1035     }

  1036     if(_showNodeText) {

  1037       os << "%Node texts:\ngsave\n";

  1038       os << "/fosi " << _nodeTextSize << " def\n";

  1039       os << "(Helvetica) findfont fosi scalefont setfont\n";

  1040       for(NodeIt n(g);n!=INVALID;++n) {

  1041         switch(_nodeTextColorType) {

  1042         case DIST_COL:

  1043           os << psOut(distantColor(_nodeColors[n])) << " setrgbcolor\n";

  1044           break;

  1045         case DIST_BW:

  1046           os << psOut(distantBW(_nodeColors[n])) << " setrgbcolor\n";

  1047           break;

  1048         case CUST_COL:

  1049           os << psOut(distantColor(_nodeTextColors[n])) << " setrgbcolor\n";

  1050           break;

  1051         default:

  1052           os << "0 0 0 setrgbcolor\n";

  1053         }

  1054         os << mycoords[n].x << ' ' << mycoords[n].y

  1055            << " (" << _nodeTexts[n] << ") cshow\n";

  1056       }

  1057       os << "grestore\n";

  1058     }

  1059     if(_showNodePsText) {

  1060       os << "%Node PS blocks:\ngsave\n";

  1061       for(NodeIt n(g);n!=INVALID;++n)

  1062         os << mycoords[n].x << ' ' << mycoords[n].y

  1063            << " moveto\n" << _nodePsTexts[n] << "\n";

  1064       os << "grestore\n";

  1065     }

  1067     os << "grestore\nshowpage\n";

  1069     //CleanUp:

  1070     if(_pleaseRemoveOsStream) {delete &os;}

  1071   }

  1073   ///\name Aliases

  1074   ///These are just some aliases to other parameter setting functions.

  1076   ///@{

  1078   ///An alias for arcWidths()

  1079   template<class X> GraphToEps<ArcWidthsTraits<X> > edgeWidths(const X &x)

  1080   {

  1081     return arcWidths(x);

  1082   }

  1084   ///An alias for arcColors()

  1085   template<class X> GraphToEps<ArcColorsTraits<X> >

  1086   edgeColors(const X &x)

  1087   {

  1088     return arcColors(x);

  1089   }

  1091   ///An alias for arcWidthScale()

  1092   GraphToEps<T> &edgeWidthScale(double d) {return arcWidthScale(d);}

  1094   ///An alias for autoArcWidthScale()

  1095   GraphToEps<T> &autoEdgeWidthScale(bool b=true)

  1096   {

  1097     return autoArcWidthScale(b);

  1098   }

  1100   ///An alias for absoluteArcWidths()

  1101   GraphToEps<T> &absoluteEdgeWidths(bool b=true)

  1102   {

  1103     return absoluteArcWidths(b);

  1104   }

  1106   ///An alias for parArcDist()

  1107   GraphToEps<T> &parEdgeDist(double d) {return parArcDist(d);}

  1109   ///An alias for hideArcs()

  1110   GraphToEps<T> &hideEdges(bool b=true) {return hideArcs(b);}

  1112   ///@}

  1113 };

  1115 template<class T>

  1116 const int GraphToEps<T>::INTERPOL_PREC = 20;

  1117 template<class T>

  1118 const double GraphToEps<T>::A4HEIGHT = 841.8897637795276;

  1119 template<class T>

  1120 const double GraphToEps<T>::A4WIDTH  = 595.275590551181;

  1121 template<class T>

  1122 const double GraphToEps<T>::A4BORDER = 15;

  1125 ///Generates an EPS file from a graph

  1127 ///\ingroup eps_io

  1128 ///Generates an EPS file from a graph.

  1129 ///\param g Reference to the graph to be printed.

  1130 ///\param os Reference to the output stream.

  1131 ///By default it is <tt>std::cout</tt>.

  1132 ///

  1133 ///This function also has a lot of

  1134 ///\ref named-templ-func-param "named parameters",

  1135 ///they are declared as the members of class \ref GraphToEps. The following

  1136 ///example shows how to use these parameters.

  1137 ///\code

  1138 /// graphToEps(g,os).scale(10).coords(coords)

  1139 ///              .nodeScale(2).nodeSizes(sizes)

  1140 ///              .arcWidthScale(.4).run();

  1141 ///\endcode

  1142 ///

  1143 ///For more detailed examples see the \ref graph_to_eps_demo.cc demo file.

  1144 ///

  1145 ///\warning Don't forget to put the \ref GraphToEps::run() "run()"

  1146 ///to the end of the parameter list.

  1147 ///\sa GraphToEps

  1148 ///\sa graphToEps(G &g, const char *file_name)

  1149 template<class G>

  1150 GraphToEps<DefaultGraphToEpsTraits<G> >

  1151 graphToEps(G &g, std::ostream& os=std::cout)

  1152 {

  1153   return

  1154     GraphToEps<DefaultGraphToEpsTraits<G> >(DefaultGraphToEpsTraits<G>(g,os));

  1155 }

  1157 ///Generates an EPS file from a graph

  1159 ///\ingroup eps_io

  1160 ///This function does the same as

  1161 ///\ref graphToEps(G &g,std::ostream& os)

  1162 ///but it writes its output into the file \c file_name

  1163 ///instead of a stream.

  1164 ///\sa graphToEps(G &g, std::ostream& os)

  1165 template<class G>

  1166 GraphToEps<DefaultGraphToEpsTraits<G> >

  1167 graphToEps(G &g,const char *file_name)

  1168 {

  1169   return GraphToEps<DefaultGraphToEpsTraits<G> >

  1170     (DefaultGraphToEpsTraits<G>(g,*new std::ofstream(file_name),true));

  1171 }

  1173 ///Generates an EPS file from a graph

  1175 ///\ingroup eps_io

  1176 ///This function does the same as

  1177 ///\ref graphToEps(G &g,std::ostream& os)

  1178 ///but it writes its output into the file \c file_name

  1179 ///instead of a stream.

  1180 ///\sa graphToEps(G &g, std::ostream& os)

  1181 template<class G>

  1182 GraphToEps<DefaultGraphToEpsTraits<G> >

  1183 graphToEps(G &g,const std::string& file_name)

  1184 {

  1185   return GraphToEps<DefaultGraphToEpsTraits<G> >

  1186     (DefaultGraphToEpsTraits<G>(g,*new std::ofstream(file_name.c_str()),true));

  1187 }

  1189 } //END OF NAMESPACE LEMON

  1191 #endif // LEMON_GRAPH_TO_EPS_H

author	Alpar Juttner <alpar@cs.elte.hu>
	Sat, 27 Sep 2008 13:45:50 +0200
changeset 283	66bb22401834
parent 253	dbe309b5e855
child 290	f6899946c1ac
permissions	-rw-r--r--