[1073] | 1 | /* -*- C++ -*- |
---|
[1435] | 2 | * lemon/graph_to_eps.h - Part of LEMON, a generic C++ optimization library |
---|
[1073] | 3 | * |
---|
[1164] | 4 | * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
---|
[1359] | 5 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
---|
[1073] | 6 | * |
---|
| 7 | * Permission to use, modify and distribute this software is granted |
---|
| 8 | * provided that this copyright notice appears in all copies. For |
---|
| 9 | * precise terms see the accompanying LICENSE file. |
---|
| 10 | * |
---|
| 11 | * This software is provided "AS IS" with no warranty of any kind, |
---|
| 12 | * express or implied, and with no claim as to its suitability for any |
---|
| 13 | * purpose. |
---|
| 14 | * |
---|
| 15 | */ |
---|
| 16 | |
---|
| 17 | #ifndef LEMON_GRAPH_TO_EPS_H |
---|
| 18 | #define LEMON_GRAPH_TO_EPS_H |
---|
| 19 | |
---|
[1108] | 20 | #include <sys/time.h> |
---|
| 21 | |
---|
[1073] | 22 | #include<iostream> |
---|
| 23 | #include<fstream> |
---|
| 24 | #include<sstream> |
---|
| 25 | #include<algorithm> |
---|
| 26 | #include<vector> |
---|
| 27 | |
---|
[1417] | 28 | #include <ctime> |
---|
| 29 | #include <cmath> |
---|
| 30 | |
---|
[1234] | 31 | #include<lemon/invalid.h> |
---|
[1073] | 32 | #include<lemon/xy.h> |
---|
| 33 | #include<lemon/maps.h> |
---|
| 34 | #include<lemon/bezier.h> |
---|
| 35 | |
---|
[1417] | 36 | |
---|
[1287] | 37 | ///\ingroup io_group |
---|
[1073] | 38 | ///\file |
---|
| 39 | ///\brief Simple graph drawer |
---|
| 40 | /// |
---|
| 41 | ///\author Alpar Juttner |
---|
| 42 | |
---|
| 43 | namespace lemon { |
---|
| 44 | |
---|
| 45 | ///Data structure representing RGB colors. |
---|
| 46 | |
---|
| 47 | ///Data structure representing RGB colors. |
---|
| 48 | ///\ingroup misc |
---|
| 49 | class Color |
---|
| 50 | { |
---|
| 51 | double _r,_g,_b; |
---|
| 52 | public: |
---|
| 53 | ///Default constructor |
---|
| 54 | Color() {} |
---|
| 55 | ///Constructor |
---|
| 56 | Color(double r,double g,double b) :_r(r),_g(g),_b(b) {}; |
---|
| 57 | ///Returns the red component |
---|
[1178] | 58 | |
---|
| 59 | ///\todo \c red() could be a better name... |
---|
| 60 | double getR() const {return _r;} |
---|
[1073] | 61 | ///Returns the green component |
---|
[1178] | 62 | double getG() const {return _g;} |
---|
[1073] | 63 | ///Returns the blue component |
---|
[1178] | 64 | double getB() const {return _b;} |
---|
[1073] | 65 | ///Set the color components |
---|
| 66 | void set(double r,double g,double b) { _r=r;_g=g;_b=b; }; |
---|
| 67 | }; |
---|
[1178] | 68 | |
---|
| 69 | ///Maps <tt>int</tt>s to different \ref Color "Color"s |
---|
| 70 | |
---|
| 71 | ///This map assing one of the predefined \ref Color "Color"s |
---|
| 72 | ///to each <tt>int</tt>. It is possible to change the colors as well as their |
---|
| 73 | ///number. The integer range is cyclically mapped to the provided set of colors. |
---|
| 74 | /// |
---|
| 75 | ///This is a true \ref concept::ReferenceMap "reference map", so you can also |
---|
| 76 | ///change the actual colors. |
---|
| 77 | |
---|
| 78 | class ColorSet : public MapBase<int,Color> |
---|
| 79 | { |
---|
| 80 | std::vector<Color> colors; |
---|
| 81 | public: |
---|
| 82 | ///Constructor |
---|
| 83 | |
---|
| 84 | ///Constructor |
---|
| 85 | ///\param have_white indicates wheter white is |
---|
| 86 | ///amongst the provided color (\c true) or not (\c false). If it is true, |
---|
| 87 | ///white will be assigned to \c 0. |
---|
| 88 | ///\param num the number of the allocated colors. If it is \c 0 |
---|
| 89 | ///the default color configuration is set up (26 color plus the while). |
---|
| 90 | ///If \c num is less then 26/27 then the default color list is cut. Otherwise |
---|
| 91 | ///the color list is filled repeatedly with the default color list. |
---|
| 92 | ColorSet(bool have_white=false,int num=0) |
---|
| 93 | { |
---|
| 94 | do { |
---|
| 95 | if(have_white) colors.push_back(Color(1,1,1)); |
---|
| 96 | |
---|
| 97 | colors.push_back(Color(0,0,0)); |
---|
| 98 | colors.push_back(Color(1,0,0)); |
---|
| 99 | colors.push_back(Color(0,1,0)); |
---|
| 100 | colors.push_back(Color(0,0,1)); |
---|
| 101 | colors.push_back(Color(1,1,0)); |
---|
| 102 | colors.push_back(Color(1,0,1)); |
---|
| 103 | colors.push_back(Color(0,1,1)); |
---|
| 104 | |
---|
| 105 | colors.push_back(Color(.5,0,0)); |
---|
| 106 | colors.push_back(Color(0,.5,0)); |
---|
| 107 | colors.push_back(Color(0,0,.5)); |
---|
| 108 | colors.push_back(Color(.5,.5,0)); |
---|
| 109 | colors.push_back(Color(.5,0,.5)); |
---|
| 110 | colors.push_back(Color(0,.5,.5)); |
---|
| 111 | |
---|
| 112 | colors.push_back(Color(.5,.5,.5)); |
---|
| 113 | colors.push_back(Color(1,.5,.5)); |
---|
| 114 | colors.push_back(Color(.5,1,.5)); |
---|
| 115 | colors.push_back(Color(.5,.5,1)); |
---|
| 116 | colors.push_back(Color(1,1,.5)); |
---|
| 117 | colors.push_back(Color(1,.5,1)); |
---|
| 118 | colors.push_back(Color(.5,1,1)); |
---|
| 119 | |
---|
| 120 | colors.push_back(Color(1,.5,0)); |
---|
| 121 | colors.push_back(Color(.5,1,0)); |
---|
| 122 | colors.push_back(Color(1,0,.5)); |
---|
| 123 | colors.push_back(Color(0,1,.5)); |
---|
| 124 | colors.push_back(Color(0,.5,1)); |
---|
| 125 | colors.push_back(Color(.5,0,1)); |
---|
| 126 | } while(int(colors.size())<num); |
---|
| 127 | // colors.push_back(Color(1,1,1)); |
---|
| 128 | if(num>0) colors.resize(num); |
---|
| 129 | } |
---|
| 130 | ///\e |
---|
| 131 | Color &operator[](int i) |
---|
| 132 | { |
---|
| 133 | return colors[i%colors.size()]; |
---|
| 134 | } |
---|
| 135 | ///\e |
---|
| 136 | const Color &operator[](int i) const |
---|
| 137 | { |
---|
| 138 | return colors[i%colors.size()]; |
---|
| 139 | } |
---|
| 140 | ///\e |
---|
| 141 | void set(int i,const Color &c) |
---|
| 142 | { |
---|
| 143 | colors[i%colors.size()]=c; |
---|
| 144 | } |
---|
| 145 | ///Sets the number of the exiting colors. |
---|
| 146 | void resize(int s) { colors.resize(s);} |
---|
| 147 | ///Returns the munber of the existing colors. |
---|
| 148 | std::size_t size() { return colors.size();} |
---|
| 149 | }; |
---|
| 150 | |
---|
| 151 | ///Returns a visible distinct \ref Color |
---|
| 152 | |
---|
| 153 | ///Returns a \ref Color which is as different from the given parameter |
---|
| 154 | ///as it is possible. |
---|
| 155 | inline Color distantColor(const Color &c) |
---|
| 156 | { |
---|
| 157 | return Color(c.getR()<.5?1:0,c.getG()<.5?1:0,c.getB()<.5?1:0); |
---|
| 158 | } |
---|
| 159 | ///Returns black for light colors and white for the dark ones. |
---|
| 160 | |
---|
| 161 | ///Returns black for light colors and white for the dark ones. |
---|
| 162 | ///\todo weighted average would be better |
---|
| 163 | inline Color distantBW(const Color &c){ |
---|
[1180] | 164 | double v=(.2125*c.getR()+.7154*c.getG()+.0721*c.getB())<.5?1:0; |
---|
[1178] | 165 | return Color(v,v,v); |
---|
| 166 | } |
---|
| 167 | |
---|
[1073] | 168 | ///Default traits class of \ref GraphToEps |
---|
| 169 | |
---|
| 170 | ///Default traits class of \ref GraphToEps |
---|
| 171 | /// |
---|
| 172 | ///\c G is the type of the underlying graph. |
---|
| 173 | template<class G> |
---|
| 174 | struct DefaultGraphToEpsTraits |
---|
| 175 | { |
---|
| 176 | typedef G Graph; |
---|
| 177 | typedef typename Graph::Node Node; |
---|
| 178 | typedef typename Graph::NodeIt NodeIt; |
---|
| 179 | typedef typename Graph::Edge Edge; |
---|
| 180 | typedef typename Graph::EdgeIt EdgeIt; |
---|
| 181 | typedef typename Graph::InEdgeIt InEdgeIt; |
---|
| 182 | typedef typename Graph::OutEdgeIt OutEdgeIt; |
---|
| 183 | |
---|
| 184 | |
---|
| 185 | const Graph &g; |
---|
| 186 | |
---|
| 187 | std::ostream& os; |
---|
| 188 | |
---|
| 189 | ConstMap<typename Graph::Node,xy<double> > _coords; |
---|
| 190 | ConstMap<typename Graph::Node,double > _nodeSizes; |
---|
[1086] | 191 | ConstMap<typename Graph::Node,int > _nodeShapes; |
---|
[1073] | 192 | |
---|
| 193 | ConstMap<typename Graph::Node,Color > _nodeColors; |
---|
| 194 | ConstMap<typename Graph::Edge,Color > _edgeColors; |
---|
| 195 | |
---|
| 196 | ConstMap<typename Graph::Edge,double > _edgeWidths; |
---|
[1103] | 197 | |
---|
[1073] | 198 | double _edgeWidthScale; |
---|
| 199 | |
---|
| 200 | double _nodeScale; |
---|
| 201 | double _xBorder, _yBorder; |
---|
| 202 | double _scale; |
---|
| 203 | double _nodeBorderQuotient; |
---|
| 204 | |
---|
| 205 | bool _drawArrows; |
---|
| 206 | double _arrowLength, _arrowWidth; |
---|
| 207 | |
---|
| 208 | bool _showNodes, _showEdges; |
---|
| 209 | |
---|
| 210 | bool _enableParallel; |
---|
| 211 | double _parEdgeDist; |
---|
| 212 | |
---|
| 213 | bool _showNodeText; |
---|
| 214 | ConstMap<typename Graph::Node,bool > _nodeTexts; |
---|
| 215 | double _nodeTextSize; |
---|
| 216 | |
---|
[1085] | 217 | bool _showNodePsText; |
---|
| 218 | ConstMap<typename Graph::Node,bool > _nodePsTexts; |
---|
| 219 | char *_nodePsTextsPreamble; |
---|
| 220 | |
---|
[1073] | 221 | bool _undir; |
---|
| 222 | bool _pleaseRemoveOsStream; |
---|
[1103] | 223 | |
---|
| 224 | bool _scaleToA4; |
---|
[1108] | 225 | |
---|
| 226 | std::string _title; |
---|
| 227 | std::string _copyright; |
---|
[1178] | 228 | |
---|
| 229 | enum NodeTextColorType |
---|
| 230 | { DIST_COL=0, DIST_BW=1, CUST_COL=2, SAME_COL=3 } _nodeTextColorType; |
---|
| 231 | ConstMap<typename Graph::Node,Color > _nodeTextColors; |
---|
| 232 | |
---|
[1073] | 233 | ///Constructor |
---|
| 234 | |
---|
| 235 | ///Constructor |
---|
| 236 | ///\param _g is a reference to the graph to be printed |
---|
| 237 | ///\param _os is a reference to the output stream. |
---|
| 238 | ///\param _os is a reference to the output stream. |
---|
| 239 | ///\param _pros If it is \c true, then the \c ostream referenced by \c _os |
---|
| 240 | ///will be explicitly deallocated by the destructor. |
---|
| 241 | ///By default it is <tt>std::cout</tt> |
---|
| 242 | DefaultGraphToEpsTraits(const G &_g,std::ostream& _os=std::cout, |
---|
| 243 | bool _pros=false) : |
---|
| 244 | g(_g), os(_os), |
---|
[1086] | 245 | _coords(xy<double>(1,1)), _nodeSizes(1.0), _nodeShapes(0), |
---|
[1073] | 246 | _nodeColors(Color(1,1,1)), _edgeColors(Color(0,0,0)), |
---|
| 247 | _edgeWidths(1), _edgeWidthScale(0.3), |
---|
| 248 | _nodeScale(1.0), _xBorder(10), _yBorder(10), _scale(1.0), |
---|
| 249 | _nodeBorderQuotient(.1), |
---|
| 250 | _drawArrows(false), _arrowLength(1), _arrowWidth(0.3), |
---|
| 251 | _showNodes(true), _showEdges(true), |
---|
| 252 | _enableParallel(false), _parEdgeDist(1), |
---|
| 253 | _showNodeText(false), _nodeTexts(false), _nodeTextSize(1), |
---|
[1085] | 254 | _showNodePsText(false), _nodePsTexts(false), _nodePsTextsPreamble(0), |
---|
[1073] | 255 | _undir(false), |
---|
[1178] | 256 | _pleaseRemoveOsStream(_pros), _scaleToA4(false), |
---|
| 257 | _nodeTextColorType(SAME_COL), _nodeTextColors(Color(0,0,0)) |
---|
| 258 | {} |
---|
[1073] | 259 | }; |
---|
| 260 | |
---|
| 261 | ///Helper class to implement the named parameters of \ref graphToEps() |
---|
| 262 | |
---|
| 263 | ///Helper class to implement the named parameters of \ref graphToEps() |
---|
| 264 | ///\todo Is 'helper class' a good name for this? |
---|
| 265 | /// |
---|
[1103] | 266 | ///\todo Follow PostScript's DSC. |
---|
[1107] | 267 | /// Use own dictionary. |
---|
| 268 | ///\todo Useful new features. |
---|
| 269 | /// - Linestyles: dotted, dashed etc. |
---|
| 270 | /// - A second color and percent value for the lines. |
---|
[1073] | 271 | template<class T> class GraphToEps : public T |
---|
| 272 | { |
---|
[1234] | 273 | // Can't believe it is required by the C++ standard |
---|
| 274 | using T::g; |
---|
| 275 | using T::os; |
---|
| 276 | |
---|
| 277 | using T::_coords; |
---|
| 278 | using T::_nodeSizes; |
---|
| 279 | using T::_nodeShapes; |
---|
| 280 | using T::_nodeColors; |
---|
| 281 | using T::_edgeColors; |
---|
| 282 | using T::_edgeWidths; |
---|
| 283 | |
---|
| 284 | using T::_edgeWidthScale; |
---|
| 285 | using T::_nodeScale; |
---|
| 286 | using T::_xBorder; |
---|
| 287 | using T::_yBorder; |
---|
| 288 | using T::_scale; |
---|
| 289 | using T::_nodeBorderQuotient; |
---|
| 290 | |
---|
| 291 | using T::_drawArrows; |
---|
| 292 | using T::_arrowLength; |
---|
| 293 | using T::_arrowWidth; |
---|
| 294 | |
---|
| 295 | using T::_showNodes; |
---|
| 296 | using T::_showEdges; |
---|
| 297 | |
---|
| 298 | using T::_enableParallel; |
---|
| 299 | using T::_parEdgeDist; |
---|
| 300 | |
---|
| 301 | using T::_showNodeText; |
---|
| 302 | using T::_nodeTexts; |
---|
| 303 | using T::_nodeTextSize; |
---|
| 304 | |
---|
| 305 | using T::_showNodePsText; |
---|
| 306 | using T::_nodePsTexts; |
---|
| 307 | using T::_nodePsTextsPreamble; |
---|
| 308 | |
---|
| 309 | using T::_undir; |
---|
| 310 | using T::_pleaseRemoveOsStream; |
---|
| 311 | |
---|
| 312 | using T::_scaleToA4; |
---|
| 313 | |
---|
| 314 | using T::_title; |
---|
| 315 | using T::_copyright; |
---|
| 316 | |
---|
| 317 | using T::NodeTextColorType; |
---|
| 318 | using T::CUST_COL; |
---|
| 319 | using T::DIST_COL; |
---|
| 320 | using T::DIST_BW; |
---|
| 321 | using T::_nodeTextColorType; |
---|
| 322 | using T::_nodeTextColors; |
---|
| 323 | // dradnats ++C eht yb deriuqer si ti eveileb t'naC |
---|
| 324 | |
---|
[1073] | 325 | typedef typename T::Graph Graph; |
---|
| 326 | typedef typename Graph::Node Node; |
---|
| 327 | typedef typename Graph::NodeIt NodeIt; |
---|
| 328 | typedef typename Graph::Edge Edge; |
---|
| 329 | typedef typename Graph::EdgeIt EdgeIt; |
---|
| 330 | typedef typename Graph::InEdgeIt InEdgeIt; |
---|
| 331 | typedef typename Graph::OutEdgeIt OutEdgeIt; |
---|
| 332 | |
---|
[1087] | 333 | static const int INTERPOL_PREC=20; |
---|
[1234] | 334 | static const double A4HEIGHT = 841.8897637795276; |
---|
| 335 | static const double A4WIDTH = 595.275590551181; |
---|
| 336 | static const double A4BORDER = 15; |
---|
[1087] | 337 | |
---|
[1073] | 338 | bool dontPrint; |
---|
| 339 | |
---|
[1107] | 340 | public: |
---|
| 341 | ///Node shapes |
---|
| 342 | |
---|
| 343 | ///Node shapes |
---|
| 344 | /// |
---|
| 345 | enum NodeShapes { |
---|
| 346 | /// = 0 |
---|
| 347 | ///\image html nodeshape_0.png |
---|
| 348 | ///\image latex nodeshape_0.eps "CIRCLE shape (0)" width=2cm |
---|
| 349 | CIRCLE=0, |
---|
| 350 | /// = 1 |
---|
| 351 | ///\image html nodeshape_1.png |
---|
| 352 | ///\image latex nodeshape_1.eps "SQUARE shape (1)" width=2cm |
---|
| 353 | /// |
---|
| 354 | SQUARE=1, |
---|
| 355 | /// = 2 |
---|
| 356 | ///\image html nodeshape_2.png |
---|
| 357 | ///\image latex nodeshape_2.eps "DIAMOND shape (2)" width=2cm |
---|
| 358 | /// |
---|
| 359 | DIAMOND=2 |
---|
| 360 | }; |
---|
| 361 | |
---|
| 362 | private: |
---|
[1073] | 363 | class edgeLess { |
---|
| 364 | const Graph &g; |
---|
| 365 | public: |
---|
| 366 | edgeLess(const Graph &_g) : g(_g) {} |
---|
| 367 | bool operator()(Edge a,Edge b) const |
---|
| 368 | { |
---|
[1367] | 369 | Node ai=std::min(g.source(a),g.target(a)); |
---|
| 370 | Node aa=std::max(g.source(a),g.target(a)); |
---|
| 371 | Node bi=std::min(g.source(b),g.target(b)); |
---|
| 372 | Node ba=std::max(g.source(b),g.target(b)); |
---|
[1073] | 373 | return ai<bi || |
---|
| 374 | (ai==bi && (aa < ba || |
---|
| 375 | (aa==ba && ai==g.source(a) && bi==g.target(b)))); |
---|
| 376 | } |
---|
| 377 | }; |
---|
| 378 | bool isParallel(Edge e,Edge f) const |
---|
| 379 | { |
---|
[1234] | 380 | return (g.source(e)==g.source(f)&& |
---|
| 381 | g.target(e)==g.target(f)) || |
---|
| 382 | (g.source(e)==g.target(f)&& |
---|
| 383 | g.target(e)==g.source(f)); |
---|
[1073] | 384 | } |
---|
[1178] | 385 | template<class TT> |
---|
| 386 | static std::string psOut(const xy<TT> &p) |
---|
[1073] | 387 | { |
---|
| 388 | std::ostringstream os; |
---|
| 389 | os << p.x << ' ' << p.y; |
---|
| 390 | return os.str(); |
---|
| 391 | } |
---|
[1178] | 392 | static std::string psOut(const Color &c) |
---|
| 393 | { |
---|
| 394 | std::ostringstream os; |
---|
| 395 | os << c.getR() << ' ' << c.getG() << ' ' << c.getB(); |
---|
| 396 | return os.str(); |
---|
| 397 | } |
---|
[1073] | 398 | |
---|
| 399 | public: |
---|
| 400 | GraphToEps(const T &t) : T(t), dontPrint(false) {}; |
---|
| 401 | |
---|
| 402 | template<class X> struct CoordsTraits : public T { |
---|
| 403 | const X &_coords; |
---|
| 404 | CoordsTraits(const T &t,const X &x) : T(t), _coords(x) {} |
---|
| 405 | }; |
---|
| 406 | ///Sets the map of the node coordinates |
---|
| 407 | |
---|
| 408 | ///Sets the map of the node coordinates. |
---|
[1103] | 409 | ///\param x must be a node map with xy<double> or \ref xy "xy<int>" values. |
---|
[1073] | 410 | template<class X> GraphToEps<CoordsTraits<X> > coords(const X &x) { |
---|
| 411 | dontPrint=true; |
---|
| 412 | return GraphToEps<CoordsTraits<X> >(CoordsTraits<X>(*this,x)); |
---|
| 413 | } |
---|
| 414 | template<class X> struct NodeSizesTraits : public T { |
---|
| 415 | const X &_nodeSizes; |
---|
| 416 | NodeSizesTraits(const T &t,const X &x) : T(t), _nodeSizes(x) {} |
---|
| 417 | }; |
---|
| 418 | ///Sets the map of the node sizes |
---|
| 419 | |
---|
| 420 | ///Sets the map of the node sizes |
---|
| 421 | ///\param x must be a node map with \c double (or convertible) values. |
---|
| 422 | template<class X> GraphToEps<NodeSizesTraits<X> > nodeSizes(const X &x) |
---|
| 423 | { |
---|
| 424 | dontPrint=true; |
---|
| 425 | return GraphToEps<NodeSizesTraits<X> >(NodeSizesTraits<X>(*this,x)); |
---|
| 426 | } |
---|
[1086] | 427 | template<class X> struct NodeShapesTraits : public T { |
---|
| 428 | const X &_nodeShapes; |
---|
| 429 | NodeShapesTraits(const T &t,const X &x) : T(t), _nodeShapes(x) {} |
---|
| 430 | }; |
---|
| 431 | ///Sets the map of the node shapes |
---|
| 432 | |
---|
[1107] | 433 | ///Sets the map of the node shapes. |
---|
| 434 | ///The availabe shape values |
---|
| 435 | ///can be found in \ref NodeShapes "enum NodeShapes". |
---|
[1086] | 436 | ///\param x must be a node map with \c int (or convertible) values. |
---|
[1107] | 437 | ///\sa NodeShapes |
---|
[1086] | 438 | template<class X> GraphToEps<NodeShapesTraits<X> > nodeShapes(const X &x) |
---|
| 439 | { |
---|
| 440 | dontPrint=true; |
---|
| 441 | return GraphToEps<NodeShapesTraits<X> >(NodeShapesTraits<X>(*this,x)); |
---|
| 442 | } |
---|
[1073] | 443 | template<class X> struct NodeTextsTraits : public T { |
---|
| 444 | const X &_nodeTexts; |
---|
| 445 | NodeTextsTraits(const T &t,const X &x) : T(t), _nodeTexts(x) {} |
---|
| 446 | }; |
---|
| 447 | ///Sets the text printed on the nodes |
---|
| 448 | |
---|
| 449 | ///Sets the text printed on the nodes |
---|
| 450 | ///\param x must be a node map with type that can be pushed to a standard |
---|
| 451 | ///ostream. |
---|
| 452 | template<class X> GraphToEps<NodeTextsTraits<X> > nodeTexts(const X &x) |
---|
| 453 | { |
---|
| 454 | dontPrint=true; |
---|
| 455 | _showNodeText=true; |
---|
| 456 | return GraphToEps<NodeTextsTraits<X> >(NodeTextsTraits<X>(*this,x)); |
---|
| 457 | } |
---|
[1085] | 458 | template<class X> struct NodePsTextsTraits : public T { |
---|
| 459 | const X &_nodePsTexts; |
---|
| 460 | NodePsTextsTraits(const T &t,const X &x) : T(t), _nodePsTexts(x) {} |
---|
| 461 | }; |
---|
| 462 | ///Inserts a PostScript block to the nodes |
---|
| 463 | |
---|
| 464 | ///With this command it is possible to insert a verbatim PostScript |
---|
| 465 | ///block to the nodes. |
---|
| 466 | ///The PS current point will be moved to the centre of the node before |
---|
| 467 | ///the PostScript block inserted. |
---|
| 468 | /// |
---|
| 469 | ///Before and after the block a newline character is inserted to you |
---|
| 470 | ///don't have to bother with the separators. |
---|
| 471 | /// |
---|
| 472 | ///\param x must be a node map with type that can be pushed to a standard |
---|
| 473 | ///ostream. |
---|
| 474 | /// |
---|
| 475 | ///\sa nodePsTextsPreamble() |
---|
| 476 | ///\todo Offer the choise not to move to the centre but pass the coordinates |
---|
| 477 | ///to the Postscript block inserted. |
---|
| 478 | template<class X> GraphToEps<NodePsTextsTraits<X> > nodePsTexts(const X &x) |
---|
| 479 | { |
---|
| 480 | dontPrint=true; |
---|
| 481 | _showNodePsText=true; |
---|
| 482 | return GraphToEps<NodePsTextsTraits<X> >(NodePsTextsTraits<X>(*this,x)); |
---|
| 483 | } |
---|
| 484 | template<class X> struct EdgeWidthsTraits : public T { |
---|
[1073] | 485 | const X &_edgeWidths; |
---|
| 486 | EdgeWidthsTraits(const T &t,const X &x) : T(t), _edgeWidths(x) {} |
---|
| 487 | }; |
---|
| 488 | ///Sets the map of the edge widths |
---|
| 489 | |
---|
| 490 | ///Sets the map of the edge widths |
---|
| 491 | ///\param x must be a edge map with \c double (or convertible) values. |
---|
| 492 | template<class X> GraphToEps<EdgeWidthsTraits<X> > edgeWidths(const X &x) |
---|
| 493 | { |
---|
| 494 | dontPrint=true; |
---|
| 495 | return GraphToEps<EdgeWidthsTraits<X> >(EdgeWidthsTraits<X>(*this,x)); |
---|
| 496 | } |
---|
| 497 | |
---|
| 498 | template<class X> struct NodeColorsTraits : public T { |
---|
| 499 | const X &_nodeColors; |
---|
| 500 | NodeColorsTraits(const T &t,const X &x) : T(t), _nodeColors(x) {} |
---|
| 501 | }; |
---|
| 502 | ///Sets the map of the node colors |
---|
| 503 | |
---|
| 504 | ///Sets the map of the node colors |
---|
| 505 | ///\param x must be a node map with \ref Color values. |
---|
| 506 | template<class X> GraphToEps<NodeColorsTraits<X> > |
---|
| 507 | nodeColors(const X &x) |
---|
| 508 | { |
---|
| 509 | dontPrint=true; |
---|
| 510 | return GraphToEps<NodeColorsTraits<X> >(NodeColorsTraits<X>(*this,x)); |
---|
| 511 | } |
---|
[1178] | 512 | template<class X> struct NodeTextColorsTraits : public T { |
---|
| 513 | const X &_nodeTextColors; |
---|
| 514 | NodeTextColorsTraits(const T &t,const X &x) : T(t), _nodeTextColors(x) {} |
---|
| 515 | }; |
---|
| 516 | ///Sets the map of the node text colors |
---|
| 517 | |
---|
| 518 | ///Sets the map of the node text colors |
---|
| 519 | ///\param x must be a node map with \ref Color values. |
---|
| 520 | template<class X> GraphToEps<NodeTextColorsTraits<X> > |
---|
| 521 | nodeTextColors(const X &x) |
---|
| 522 | { |
---|
| 523 | dontPrint=true; |
---|
| 524 | _nodeTextColorType=CUST_COL; |
---|
| 525 | return GraphToEps<NodeTextColorsTraits<X> > |
---|
| 526 | (NodeTextColorsTraits<X>(*this,x)); |
---|
| 527 | } |
---|
[1073] | 528 | template<class X> struct EdgeColorsTraits : public T { |
---|
| 529 | const X &_edgeColors; |
---|
| 530 | EdgeColorsTraits(const T &t,const X &x) : T(t), _edgeColors(x) {} |
---|
| 531 | }; |
---|
| 532 | ///Sets the map of the edge colors |
---|
| 533 | |
---|
| 534 | ///Sets the map of the edge colors |
---|
| 535 | ///\param x must be a edge map with \ref Color values. |
---|
| 536 | template<class X> GraphToEps<EdgeColorsTraits<X> > |
---|
| 537 | edgeColors(const X &x) |
---|
| 538 | { |
---|
| 539 | dontPrint=true; |
---|
| 540 | return GraphToEps<EdgeColorsTraits<X> >(EdgeColorsTraits<X>(*this,x)); |
---|
| 541 | } |
---|
| 542 | ///Sets a global scale factor for node sizes |
---|
| 543 | |
---|
| 544 | ///Sets a global scale factor for node sizes |
---|
| 545 | /// |
---|
| 546 | GraphToEps<T> &nodeScale(double d) {_nodeScale=d;return *this;} |
---|
| 547 | ///Sets a global scale factor for edge widths |
---|
| 548 | |
---|
| 549 | ///Sets a global scale factor for edge widths |
---|
| 550 | /// |
---|
| 551 | GraphToEps<T> &edgeWidthScale(double d) {_edgeWidthScale=d;return *this;} |
---|
| 552 | ///Sets a global scale factor for the whole picture |
---|
| 553 | |
---|
| 554 | ///Sets a global scale factor for the whole picture |
---|
| 555 | /// |
---|
| 556 | GraphToEps<T> &scale(double d) {_scale=d;return *this;} |
---|
| 557 | ///Sets the width of the border around the picture |
---|
| 558 | |
---|
| 559 | ///Sets the width of the border around the picture |
---|
| 560 | /// |
---|
| 561 | GraphToEps<T> &border(double b) {_xBorder=_yBorder=b;return *this;} |
---|
| 562 | ///Sets the width of the border around the picture |
---|
| 563 | |
---|
| 564 | ///Sets the width of the border around the picture |
---|
| 565 | /// |
---|
| 566 | GraphToEps<T> &border(double x, double y) { |
---|
| 567 | _xBorder=x;_yBorder=y;return *this; |
---|
| 568 | } |
---|
| 569 | ///Sets whether to draw arrows |
---|
| 570 | |
---|
| 571 | ///Sets whether to draw arrows |
---|
| 572 | /// |
---|
| 573 | GraphToEps<T> &drawArrows(bool b=true) {_drawArrows=b;return *this;} |
---|
| 574 | ///Sets the length of the arrowheads |
---|
| 575 | |
---|
| 576 | ///Sets the length of the arrowheads |
---|
| 577 | /// |
---|
| 578 | GraphToEps<T> &arrowLength(double d) {_arrowLength*=d;return *this;} |
---|
| 579 | ///Sets the width of the arrowheads |
---|
| 580 | |
---|
| 581 | ///Sets the width of the arrowheads |
---|
| 582 | /// |
---|
| 583 | GraphToEps<T> &arrowWidth(double d) {_arrowWidth*=d;return *this;} |
---|
| 584 | |
---|
[1103] | 585 | ///Scales the drawing to fit to A4 page |
---|
| 586 | |
---|
| 587 | ///Scales the drawing to fit to A4 page |
---|
| 588 | /// |
---|
| 589 | GraphToEps<T> &scaleToA4() {_scaleToA4=true;return *this;} |
---|
| 590 | |
---|
[1073] | 591 | ///Enables parallel edges |
---|
| 592 | |
---|
| 593 | ///Enables parallel edges |
---|
| 594 | ///\todo Partially implemented |
---|
| 595 | GraphToEps<T> &enableParallel(bool b=true) {_enableParallel=b;return *this;} |
---|
| 596 | |
---|
| 597 | ///Sets the distance |
---|
| 598 | |
---|
| 599 | ///Sets the distance |
---|
| 600 | /// |
---|
| 601 | GraphToEps<T> &parEdgeDist(double d) {_parEdgeDist*=d;return *this;} |
---|
| 602 | |
---|
| 603 | ///Hides the edges |
---|
| 604 | |
---|
| 605 | ///Hides the edges |
---|
| 606 | /// |
---|
| 607 | GraphToEps<T> &hideEdges(bool b=true) {_showEdges=!b;return *this;} |
---|
| 608 | ///Hides the nodes |
---|
| 609 | |
---|
| 610 | ///Hides the nodes |
---|
| 611 | /// |
---|
| 612 | GraphToEps<T> &hideNodes(bool b=true) {_showNodes=!b;return *this;} |
---|
| 613 | |
---|
| 614 | ///Sets the size of the node texts |
---|
| 615 | |
---|
| 616 | ///Sets the size of the node texts |
---|
| 617 | /// |
---|
| 618 | GraphToEps<T> &nodeTextSize(double d) {_nodeTextSize=d;return *this;} |
---|
[1178] | 619 | |
---|
| 620 | ///Sets the color of the node texts to be different from the node color |
---|
| 621 | |
---|
| 622 | ///Sets the color of the node texts to be as different from the node color |
---|
| 623 | ///as it is possible |
---|
| 624 | /// |
---|
| 625 | GraphToEps<T> &distantColorNodeTexts() |
---|
| 626 | {_nodeTextColorType=DIST_COL;return *this;} |
---|
| 627 | ///Sets the color of the node texts to be black or white and always visible. |
---|
| 628 | |
---|
| 629 | ///Sets the color of the node texts to be black or white according to |
---|
| 630 | ///which is more |
---|
| 631 | ///different from the node color |
---|
| 632 | /// |
---|
| 633 | GraphToEps<T> &distantBWNodeTexts() |
---|
| 634 | {_nodeTextColorType=DIST_BW;return *this;} |
---|
| 635 | |
---|
[1085] | 636 | ///Gives a preamble block for node Postscript block. |
---|
| 637 | |
---|
| 638 | ///Gives a preamble block for node Postscript block. |
---|
| 639 | /// |
---|
| 640 | ///\sa nodePsTexts() |
---|
| 641 | GraphToEps<T> & nodePsTextsPreamble(const char *str) { |
---|
[1234] | 642 | _nodePsTextsPreamble=str ;return *this; |
---|
[1085] | 643 | } |
---|
[1073] | 644 | ///Sets whether the the graph is undirected |
---|
| 645 | |
---|
| 646 | ///Sets whether the the graph is undirected |
---|
| 647 | /// |
---|
| 648 | GraphToEps<T> &undir(bool b=true) {_undir=b;return *this;} |
---|
| 649 | ///Sets whether the the graph is directed |
---|
| 650 | |
---|
| 651 | ///Sets whether the the graph is directed. |
---|
| 652 | ///Use it to show the undirected edges as a pair of directed ones. |
---|
| 653 | GraphToEps<T> &bidir(bool b=true) {_undir=!b;return *this;} |
---|
[1086] | 654 | |
---|
[1108] | 655 | ///Sets the title. |
---|
| 656 | |
---|
| 657 | ///Sets the title of the generated image, |
---|
| 658 | ///namely it inserts a <tt>%%Title:</tt> DSC field to the header of |
---|
| 659 | ///the EPS file. |
---|
| 660 | GraphToEps<T> &title(const std::string &t) {_title=t;return *this;} |
---|
| 661 | ///Sets the copyright statement. |
---|
| 662 | |
---|
| 663 | ///Sets the copyright statement of the generated image, |
---|
| 664 | ///namely it inserts a <tt>%%Copyright:</tt> DSC field to the header of |
---|
| 665 | ///the EPS file. |
---|
| 666 | ///\todo Multiline copyright notice could be supported. |
---|
| 667 | GraphToEps<T> ©right(const std::string &t) {_copyright=t;return *this;} |
---|
| 668 | |
---|
[1086] | 669 | protected: |
---|
| 670 | bool isInsideNode(xy<double> p, double r,int t) |
---|
| 671 | { |
---|
| 672 | switch(t) { |
---|
| 673 | case CIRCLE: |
---|
| 674 | return p.normSquare()<=r*r; |
---|
| 675 | case SQUARE: |
---|
| 676 | return p.x<=r&&p.x>=-r&&p.y<=r&&p.y>=-r; |
---|
[1088] | 677 | case DIAMOND: |
---|
| 678 | return p.x+p.y<=r && p.x-p.y<=r && -p.x+p.y<=r && -p.x-p.y<=r; |
---|
[1086] | 679 | } |
---|
| 680 | return false; |
---|
| 681 | } |
---|
| 682 | |
---|
| 683 | public: |
---|
[1091] | 684 | ~GraphToEps() { } |
---|
| 685 | |
---|
| 686 | ///Draws the graph. |
---|
| 687 | |
---|
| 688 | ///Like other functions using |
---|
| 689 | ///\ref named-templ-func-param "named template parameters", |
---|
| 690 | ///this function calles the algorithm itself, i.e. in this case |
---|
| 691 | ///it draws the graph. |
---|
| 692 | void run() { |
---|
[1073] | 693 | if(dontPrint) return; |
---|
| 694 | |
---|
| 695 | os << "%!PS-Adobe-2.0 EPSF-2.0\n"; |
---|
[1108] | 696 | if(_title.size()>0) os << "%%Title: " << _title << '\n'; |
---|
| 697 | if(_copyright.size()>0) os << "%%Copyright: " << _copyright << '\n'; |
---|
[1107] | 698 | // << "%%Copyright: XXXX\n" |
---|
[1108] | 699 | os << "%%Creator: LEMON GraphToEps function\n"; |
---|
| 700 | |
---|
| 701 | { |
---|
| 702 | char cbuf[50]; |
---|
| 703 | timeval tv; |
---|
| 704 | gettimeofday(&tv, 0); |
---|
| 705 | ctime_r(&tv.tv_sec,cbuf); |
---|
| 706 | os << "%%CreationDate: " << cbuf; |
---|
| 707 | } |
---|
[1107] | 708 | ///\todo: Chech whether the graph is empty. |
---|
[1073] | 709 | BoundingBox<double> bb; |
---|
| 710 | for(NodeIt n(g);n!=INVALID;++n) { |
---|
| 711 | double ns=_nodeSizes[n]*_nodeScale; |
---|
| 712 | xy<double> p(ns,ns); |
---|
| 713 | bb+=p+_coords[n]; |
---|
| 714 | bb+=-p+_coords[n]; |
---|
| 715 | } |
---|
[1108] | 716 | if(_scaleToA4) |
---|
| 717 | os <<"%%BoundingBox: 0 0 596 842\n%%DocumentPaperSizes: a4\n"; |
---|
| 718 | else os << "%%BoundingBox: " |
---|
| 719 | << bb.left()* _scale-_xBorder << ' ' |
---|
| 720 | << bb.bottom()*_scale-_yBorder << ' ' |
---|
| 721 | << bb.right()* _scale+_xBorder << ' ' |
---|
| 722 | << bb.top()* _scale+_yBorder << '\n'; |
---|
| 723 | |
---|
[1107] | 724 | os << "%%EndComments\n"; |
---|
| 725 | |
---|
[1073] | 726 | //x1 y1 x2 y2 x3 y3 cr cg cb w |
---|
| 727 | os << "/lb { setlinewidth setrgbcolor newpath moveto\n" |
---|
| 728 | << " 4 2 roll 1 index 1 index curveto stroke } bind def\n"; |
---|
| 729 | os << "/l { setlinewidth setrgbcolor newpath moveto lineto stroke } bind def\n"; |
---|
[1086] | 730 | //x y r |
---|
[1073] | 731 | os << "/c { newpath dup 3 index add 2 index moveto 0 360 arc closepath } bind def\n"; |
---|
[1086] | 732 | //x y r |
---|
| 733 | os << "/sq { newpath 2 index 1 index add 2 index 2 index add moveto\n" |
---|
| 734 | << " 2 index 1 index sub 2 index 2 index add lineto\n" |
---|
| 735 | << " 2 index 1 index sub 2 index 2 index sub lineto\n" |
---|
| 736 | << " 2 index 1 index add 2 index 2 index sub lineto\n" |
---|
| 737 | << " closepath pop pop pop} bind def\n"; |
---|
[1088] | 738 | //x y r |
---|
| 739 | os << "/di { newpath 2 index 1 index add 2 index moveto\n" |
---|
| 740 | << " 2 index 2 index 2 index add lineto\n" |
---|
| 741 | << " 2 index 1 index sub 2 index lineto\n" |
---|
| 742 | << " 2 index 2 index 2 index sub lineto\n" |
---|
| 743 | << " closepath pop pop pop} bind def\n"; |
---|
[1073] | 744 | // x y r cr cg cb |
---|
[1089] | 745 | os << "/nc { 0 0 0 setrgbcolor 5 index 5 index 5 index c fill\n" |
---|
| 746 | << " setrgbcolor " << 1+_nodeBorderQuotient << " div c fill\n" |
---|
[1073] | 747 | << " } bind def\n"; |
---|
[1089] | 748 | os << "/nsq { 0 0 0 setrgbcolor 5 index 5 index 5 index sq fill\n" |
---|
| 749 | << " setrgbcolor " << 1+_nodeBorderQuotient << " div sq fill\n" |
---|
[1086] | 750 | << " } bind def\n"; |
---|
[1089] | 751 | os << "/ndi { 0 0 0 setrgbcolor 5 index 5 index 5 index di fill\n" |
---|
| 752 | << " setrgbcolor " << 1+_nodeBorderQuotient << " div di fill\n" |
---|
[1088] | 753 | << " } bind def\n"; |
---|
[1073] | 754 | os << "/arrl " << _arrowLength << " def\n"; |
---|
| 755 | os << "/arrw " << _arrowWidth << " def\n"; |
---|
| 756 | // l dx_norm dy_norm |
---|
| 757 | os << "/lrl { 2 index mul exch 2 index mul exch rlineto pop} bind def\n"; |
---|
| 758 | //len w dx_norm dy_norm x1 y1 cr cg cb |
---|
| 759 | os << "/arr { setrgbcolor /y1 exch def /x1 exch def /dy exch def /dx exch def\n" |
---|
| 760 | << " /w exch def /len exch def\n" |
---|
| 761 | // << " 0.1 setlinewidth x1 y1 moveto dx len mul dy len mul rlineto stroke" |
---|
| 762 | << " newpath x1 dy w 2 div mul add y1 dx w 2 div mul sub moveto\n" |
---|
| 763 | << " len w sub arrl sub dx dy lrl\n" |
---|
| 764 | << " arrw dy dx neg lrl\n" |
---|
| 765 | << " dx arrl w add mul dy w 2 div arrw add mul sub\n" |
---|
| 766 | << " dy arrl w add mul dx w 2 div arrw add mul add rlineto\n" |
---|
| 767 | << " dx arrl w add mul neg dy w 2 div arrw add mul sub\n" |
---|
| 768 | << " dy arrl w add mul neg dx w 2 div arrw add mul add rlineto\n" |
---|
| 769 | << " arrw dy dx neg lrl\n" |
---|
| 770 | << " len w sub arrl sub neg dx dy lrl\n" |
---|
| 771 | << " closepath fill } bind def\n"; |
---|
| 772 | os << "/cshow { 2 index 2 index moveto dup stringwidth pop\n" |
---|
| 773 | << " neg 2 div fosi .35 mul neg rmoveto show pop pop} def\n"; |
---|
| 774 | |
---|
| 775 | os << "\ngsave\n"; |
---|
[1103] | 776 | if(_scaleToA4) |
---|
| 777 | if(bb.height()>bb.width()) { |
---|
| 778 | double sc= min((A4HEIGHT-2*A4BORDER)/bb.height(), |
---|
| 779 | (A4WIDTH-2*A4BORDER)/bb.width()); |
---|
| 780 | os << ((A4WIDTH -2*A4BORDER)-sc*bb.width())/2 + A4BORDER << ' ' |
---|
| 781 | << ((A4HEIGHT-2*A4BORDER)-sc*bb.height())/2 + A4BORDER << " translate\n" |
---|
| 782 | << sc << " dup scale\n" |
---|
| 783 | << -bb.left() << ' ' << -bb.bottom() << " translate\n"; |
---|
| 784 | } |
---|
| 785 | else { |
---|
| 786 | //\todo Verify centering |
---|
| 787 | double sc= min((A4HEIGHT-2*A4BORDER)/bb.width(), |
---|
| 788 | (A4WIDTH-2*A4BORDER)/bb.height()); |
---|
| 789 | os << ((A4WIDTH -2*A4BORDER)-sc*bb.height())/2 + A4BORDER << ' ' |
---|
| 790 | << ((A4HEIGHT-2*A4BORDER)-sc*bb.width())/2 + A4BORDER << " translate\n" |
---|
| 791 | << sc << " dup scale\n90 rotate\n" |
---|
| 792 | << -bb.left() << ' ' << -bb.top() << " translate\n"; |
---|
| 793 | } |
---|
| 794 | else if(_scale!=1.0) os << _scale << " dup scale\n"; |
---|
[1073] | 795 | |
---|
[1085] | 796 | if(_showEdges) { |
---|
| 797 | os << "%Edges:\ngsave\n"; |
---|
[1073] | 798 | if(_enableParallel) { |
---|
| 799 | std::vector<Edge> el; |
---|
| 800 | for(EdgeIt e(g);e!=INVALID;++e) |
---|
[1178] | 801 | if((!_undir||g.source(e)<g.target(e))&&_edgeWidths[e]>0) |
---|
| 802 | el.push_back(e); |
---|
[1073] | 803 | sort(el.begin(),el.end(),edgeLess(g)); |
---|
| 804 | |
---|
| 805 | typename std::vector<Edge>::iterator j; |
---|
| 806 | for(typename std::vector<Edge>::iterator i=el.begin();i!=el.end();i=j) { |
---|
| 807 | for(j=i+1;j!=el.end()&&isParallel(*i,*j);++j) ; |
---|
| 808 | |
---|
| 809 | double sw=0; |
---|
| 810 | for(typename std::vector<Edge>::iterator e=i;e!=j;++e) |
---|
| 811 | sw+=_edgeWidths[*e]*_edgeWidthScale+_parEdgeDist; |
---|
| 812 | sw-=_parEdgeDist; |
---|
| 813 | sw/=-2.0; |
---|
[1085] | 814 | xy<double> dvec(_coords[g.target(*i)]-_coords[g.source(*i)]); |
---|
[1417] | 815 | double l=std::sqrt(dvec.normSquare()); |
---|
[1360] | 816 | ///\todo better 'epsilon' would be nice here. |
---|
[1366] | 817 | xy<double> d(dvec/std::max(l,1e-9)); |
---|
[1085] | 818 | xy<double> m; |
---|
| 819 | // m=xy<double>(_coords[g.target(*i)]+_coords[g.source(*i)])/2.0; |
---|
| 820 | |
---|
| 821 | // m=xy<double>(_coords[g.source(*i)])+ |
---|
| 822 | // dvec*(double(_nodeSizes[g.source(*i)])/ |
---|
| 823 | // (_nodeSizes[g.source(*i)]+_nodeSizes[g.target(*i)])); |
---|
| 824 | |
---|
| 825 | m=xy<double>(_coords[g.source(*i)])+ |
---|
| 826 | d*(l+_nodeSizes[g.source(*i)]-_nodeSizes[g.target(*i)])/2.0; |
---|
| 827 | |
---|
[1073] | 828 | for(typename std::vector<Edge>::iterator e=i;e!=j;++e) { |
---|
| 829 | sw+=_edgeWidths[*e]*_edgeWidthScale/2.0; |
---|
[1202] | 830 | xy<double> mm=m+rot90(d)*sw/.75; |
---|
[1073] | 831 | if(_drawArrows) { |
---|
[1086] | 832 | int node_shape; |
---|
[1073] | 833 | xy<double> s=_coords[g.source(*e)]; |
---|
| 834 | xy<double> t=_coords[g.target(*e)]; |
---|
| 835 | double rn=_nodeSizes[g.target(*e)]*_nodeScale; |
---|
[1086] | 836 | node_shape=_nodeShapes[g.target(*e)]; |
---|
[1085] | 837 | Bezier3 bez(s,mm,mm,t); |
---|
[1073] | 838 | double t1=0,t2=1; |
---|
[1087] | 839 | for(int i=0;i<INTERPOL_PREC;++i) |
---|
[1086] | 840 | if(isInsideNode(bez((t1+t2)/2)-t,rn,node_shape)) t2=(t1+t2)/2; |
---|
| 841 | else t1=(t1+t2)/2; |
---|
[1073] | 842 | xy<double> apoint=bez((t1+t2)/2); |
---|
[1086] | 843 | rn = _arrowLength+_edgeWidths[*e]*_edgeWidthScale; |
---|
[1073] | 844 | rn*=rn; |
---|
[1086] | 845 | t2=(t1+t2)/2;t1=0; |
---|
[1087] | 846 | for(int i=0;i<INTERPOL_PREC;++i) |
---|
[1086] | 847 | if((bez((t1+t2)/2)-apoint).normSquare()>rn) t1=(t1+t2)/2; |
---|
[1073] | 848 | else t2=(t1+t2)/2; |
---|
| 849 | xy<double> linend=bez((t1+t2)/2); |
---|
| 850 | bez=bez.before((t1+t2)/2); |
---|
[1086] | 851 | // rn=_nodeSizes[g.source(*e)]*_nodeScale; |
---|
| 852 | // node_shape=_nodeShapes[g.source(*e)]; |
---|
| 853 | // t1=0;t2=1; |
---|
[1087] | 854 | // for(int i=0;i<INTERPOL_PREC;++i) |
---|
[1086] | 855 | // if(isInsideNode(bez((t1+t2)/2)-t,rn,node_shape)) t1=(t1+t2)/2; |
---|
| 856 | // else t2=(t1+t2)/2; |
---|
| 857 | // bez=bez.after((t1+t2)/2); |
---|
[1073] | 858 | os << _edgeWidths[*e]*_edgeWidthScale << " setlinewidth " |
---|
| 859 | << _edgeColors[*e].getR() << ' ' |
---|
| 860 | << _edgeColors[*e].getG() << ' ' |
---|
| 861 | << _edgeColors[*e].getB() << " setrgbcolor newpath\n" |
---|
| 862 | << bez.p1.x << ' ' << bez.p1.y << " moveto\n" |
---|
| 863 | << bez.p2.x << ' ' << bez.p2.y << ' ' |
---|
| 864 | << bez.p3.x << ' ' << bez.p3.y << ' ' |
---|
| 865 | << bez.p4.x << ' ' << bez.p4.y << " curveto stroke\n"; |
---|
[1202] | 866 | xy<double> dd(rot90(linend-apoint)); |
---|
[1089] | 867 | dd*=(.5*_edgeWidths[*e]*_edgeWidthScale+_arrowWidth)/ |
---|
[1417] | 868 | std::sqrt(dd.normSquare()); |
---|
[1073] | 869 | os << "newpath " << psOut(apoint) << " moveto " |
---|
| 870 | << psOut(linend+dd) << " lineto " |
---|
| 871 | << psOut(linend-dd) << " lineto closepath fill\n"; |
---|
| 872 | } |
---|
| 873 | else { |
---|
| 874 | os << _coords[g.source(*e)].x << ' ' |
---|
| 875 | << _coords[g.source(*e)].y << ' ' |
---|
[1085] | 876 | << mm.x << ' ' << mm.y << ' ' |
---|
[1073] | 877 | << _coords[g.target(*e)].x << ' ' |
---|
| 878 | << _coords[g.target(*e)].y << ' ' |
---|
| 879 | << _edgeColors[*e].getR() << ' ' |
---|
| 880 | << _edgeColors[*e].getG() << ' ' |
---|
| 881 | << _edgeColors[*e].getB() << ' ' |
---|
| 882 | << _edgeWidths[*e]*_edgeWidthScale << " lb\n"; |
---|
| 883 | } |
---|
| 884 | sw+=_edgeWidths[*e]*_edgeWidthScale/2.0+_parEdgeDist; |
---|
| 885 | } |
---|
| 886 | } |
---|
| 887 | } |
---|
| 888 | else for(EdgeIt e(g);e!=INVALID;++e) |
---|
[1178] | 889 | if((!_undir||g.source(e)<g.target(e))&&_edgeWidths[e]>0) |
---|
[1073] | 890 | if(_drawArrows) { |
---|
| 891 | xy<double> d(_coords[g.target(e)]-_coords[g.source(e)]); |
---|
[1087] | 892 | double rn=_nodeSizes[g.target(e)]*_nodeScale; |
---|
| 893 | int node_shape=_nodeShapes[g.target(e)]; |
---|
| 894 | double t1=0,t2=1; |
---|
| 895 | for(int i=0;i<INTERPOL_PREC;++i) |
---|
| 896 | if(isInsideNode((-(t1+t2)/2)*d,rn,node_shape)) t1=(t1+t2)/2; |
---|
| 897 | else t2=(t1+t2)/2; |
---|
[1073] | 898 | double l=sqrt(d.normSquare()); |
---|
| 899 | d/=l; |
---|
[1087] | 900 | |
---|
| 901 | os << l*(1-(t1+t2)/2) << ' ' |
---|
[1073] | 902 | << _edgeWidths[e]*_edgeWidthScale << ' ' |
---|
| 903 | << d.x << ' ' << d.y << ' ' |
---|
[1087] | 904 | << _coords[g.source(e)].x << ' ' |
---|
| 905 | << _coords[g.source(e)].y << ' ' |
---|
[1073] | 906 | << _edgeColors[e].getR() << ' ' |
---|
| 907 | << _edgeColors[e].getG() << ' ' |
---|
| 908 | << _edgeColors[e].getB() << " arr\n"; |
---|
| 909 | } |
---|
| 910 | else os << _coords[g.source(e)].x << ' ' |
---|
| 911 | << _coords[g.source(e)].y << ' ' |
---|
| 912 | << _coords[g.target(e)].x << ' ' |
---|
| 913 | << _coords[g.target(e)].y << ' ' |
---|
| 914 | << _edgeColors[e].getR() << ' ' |
---|
| 915 | << _edgeColors[e].getG() << ' ' |
---|
| 916 | << _edgeColors[e].getB() << ' ' |
---|
| 917 | << _edgeWidths[e]*_edgeWidthScale << " l\n"; |
---|
[1085] | 918 | os << "grestore\n"; |
---|
| 919 | } |
---|
| 920 | if(_showNodes) { |
---|
| 921 | os << "%Nodes:\ngsave\n"; |
---|
[1086] | 922 | for(NodeIt n(g);n!=INVALID;++n) { |
---|
[1073] | 923 | os << _coords[n].x << ' ' << _coords[n].y << ' ' |
---|
| 924 | << _nodeSizes[n]*_nodeScale << ' ' |
---|
| 925 | << _nodeColors[n].getR() << ' ' |
---|
| 926 | << _nodeColors[n].getG() << ' ' |
---|
[1086] | 927 | << _nodeColors[n].getB() << ' '; |
---|
| 928 | switch(_nodeShapes[n]) { |
---|
| 929 | case CIRCLE: |
---|
| 930 | os<< "nc";break; |
---|
| 931 | case SQUARE: |
---|
| 932 | os<< "nsq";break; |
---|
[1088] | 933 | case DIAMOND: |
---|
| 934 | os<< "ndi";break; |
---|
[1086] | 935 | } |
---|
| 936 | os<<'\n'; |
---|
| 937 | } |
---|
[1085] | 938 | os << "grestore\n"; |
---|
| 939 | } |
---|
[1073] | 940 | if(_showNodeText) { |
---|
[1085] | 941 | os << "%Node texts:\ngsave\n"; |
---|
[1073] | 942 | os << "/fosi " << _nodeTextSize << " def\n"; |
---|
| 943 | os << "(Helvetica) findfont fosi scalefont setfont\n"; |
---|
[1178] | 944 | for(NodeIt n(g);n!=INVALID;++n) { |
---|
| 945 | switch(_nodeTextColorType) { |
---|
| 946 | case DIST_COL: |
---|
| 947 | os << psOut(distantColor(_nodeColors[n])) << " setrgbcolor\n"; |
---|
| 948 | break; |
---|
| 949 | case DIST_BW: |
---|
| 950 | os << psOut(distantBW(_nodeColors[n])) << " setrgbcolor\n"; |
---|
| 951 | break; |
---|
| 952 | case CUST_COL: |
---|
| 953 | os << psOut(distantColor(_nodeTextColors[n])) << " setrgbcolor\n"; |
---|
| 954 | break; |
---|
| 955 | default: |
---|
| 956 | os << "0 0 0 setrgbcolor\n"; |
---|
| 957 | } |
---|
[1073] | 958 | os << _coords[n].x << ' ' << _coords[n].y |
---|
| 959 | << " (" << _nodeTexts[n] << ") cshow\n"; |
---|
[1178] | 960 | } |
---|
[1085] | 961 | os << "grestore\n"; |
---|
[1073] | 962 | } |
---|
[1085] | 963 | if(_showNodePsText) { |
---|
| 964 | os << "%Node PS blocks:\ngsave\n"; |
---|
| 965 | for(NodeIt n(g);n!=INVALID;++n) |
---|
| 966 | os << _coords[n].x << ' ' << _coords[n].y |
---|
| 967 | << " moveto\n" << _nodePsTexts[n] << "\n"; |
---|
| 968 | os << "grestore\n"; |
---|
| 969 | } |
---|
| 970 | |
---|
[1103] | 971 | os << "grestore\nshowpage\n"; |
---|
[1073] | 972 | |
---|
| 973 | //CleanUp: |
---|
| 974 | if(_pleaseRemoveOsStream) {delete &os;} |
---|
| 975 | } |
---|
| 976 | }; |
---|
| 977 | |
---|
| 978 | |
---|
| 979 | ///Generates an EPS file from a graph |
---|
| 980 | |
---|
[1287] | 981 | ///\ingroup io_group |
---|
[1073] | 982 | ///Generates an EPS file from a graph. |
---|
| 983 | ///\param g is a reference to the graph to be printed |
---|
| 984 | ///\param os is a reference to the output stream. |
---|
| 985 | ///By default it is <tt>std::cout</tt> |
---|
| 986 | /// |
---|
[1091] | 987 | ///This function also has a lot of |
---|
| 988 | ///\ref named-templ-func-param "named parameters", |
---|
[1073] | 989 | ///they are declared as the members of class \ref GraphToEps. The following |
---|
| 990 | ///example shows how to use these parameters. |
---|
| 991 | ///\code |
---|
[1178] | 992 | /// graphToEps(g,os).scale(10).coords(coords) |
---|
[1073] | 993 | /// .nodeScale(2).nodeSizes(sizes) |
---|
[1091] | 994 | /// .edgeWidthScale(.4).run(); |
---|
[1073] | 995 | ///\endcode |
---|
[1091] | 996 | ///\warning Don't forget to put the \ref GraphToEps::run() "run()" |
---|
| 997 | ///to the end of the parameter list. |
---|
[1073] | 998 | ///\sa GraphToEps |
---|
| 999 | ///\sa graphToEps(G &g, char *file_name) |
---|
| 1000 | template<class G> |
---|
| 1001 | GraphToEps<DefaultGraphToEpsTraits<G> > |
---|
| 1002 | graphToEps(G &g, std::ostream& os=std::cout) |
---|
| 1003 | { |
---|
| 1004 | return |
---|
| 1005 | GraphToEps<DefaultGraphToEpsTraits<G> >(DefaultGraphToEpsTraits<G>(g,os)); |
---|
| 1006 | } |
---|
| 1007 | |
---|
| 1008 | ///Generates an EPS file from a graph |
---|
| 1009 | |
---|
[1103] | 1010 | ///\ingroup misc |
---|
[1073] | 1011 | ///This function does the same as |
---|
| 1012 | ///\ref graphToEps(G &g,std::ostream& os) |
---|
| 1013 | ///but it writes its output into the file \c file_name |
---|
| 1014 | ///instead of a stream. |
---|
| 1015 | ///\sa graphToEps(G &g, std::ostream& os) |
---|
| 1016 | template<class G> |
---|
| 1017 | GraphToEps<DefaultGraphToEpsTraits<G> > |
---|
[1107] | 1018 | graphToEps(G &g,const char *file_name) |
---|
[1073] | 1019 | { |
---|
| 1020 | return GraphToEps<DefaultGraphToEpsTraits<G> > |
---|
| 1021 | (DefaultGraphToEpsTraits<G>(g,*new std::ofstream(file_name),true)); |
---|
| 1022 | } |
---|
| 1023 | |
---|
| 1024 | } //END OF NAMESPACE LEMON |
---|
| 1025 | |
---|
| 1026 | #endif // LEMON_GRAPH_TO_EPS_H |
---|