libs/geometry/doc/html/geometry/reference/algorithms/equals.html

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  25 <div class="section">
  26 <div class="titlepage"><div><div><h4 class="title">
  27 <a name="geometry.reference.algorithms.equals"></a><a class="link" href="equals.html" title="equals">equals</a>
  28 </h4></div></div></div>
  29 <p>
  30           <a class="indexterm" name="idp116065072"></a>
  31 Checks if a geometry are spatially equal.
  32         </p>
  33 <h6>
  34 <a name="geometry.reference.algorithms.equals.h0"></a>
  35           <span class="phrase"><a name="geometry.reference.algorithms.equals.description"></a></span><a class="link" href="equals.html#geometry.reference.algorithms.equals.description">Description</a>
  36         </h6>
  37 <p>
  38           The free function equals checks if the first geometry is spatially equal
  39           the second geometry. Spatially equal means that the same point set is included.
  40           A box can therefore be spatially equal to a ring or a polygon, or a linestring
  41           can be spatially equal to a multi-linestring or a segment. This only works
  42           theoretically, not all combinations are implemented yet.
  43         </p>
  44 <h6>
  45 <a name="geometry.reference.algorithms.equals.h1"></a>
  46           <span class="phrase"><a name="geometry.reference.algorithms.equals.synopsis"></a></span><a class="link" href="equals.html#geometry.reference.algorithms.equals.synopsis">Synopsis</a>
  47         </h6>
  48 <p>
  49 </p>
  50 <pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Geometry1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Geometry2</span><span class="special">&gt;</span>
  51 <span class="keyword">bool</span> <span class="identifier">equals</span><span class="special">(</span><span class="identifier">Geometry1</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">geometry1</span><span class="special">,</span> <span class="identifier">Geometry2</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">geometry2</span><span class="special">)</span></pre>
  52 <p>
  53         </p>
  54 <h6>
  55 <a name="geometry.reference.algorithms.equals.h2"></a>
  56           <span class="phrase"><a name="geometry.reference.algorithms.equals.parameters"></a></span><a class="link" href="equals.html#geometry.reference.algorithms.equals.parameters">Parameters</a>
  57         </h6>
  58 <div class="informaltable"><table class="table">
  59 <colgroup>
  60 <col>
  61 <col>
  62 <col>
  63 <col>
  64 </colgroup>
  65 <thead><tr>
  66 <th>
  67                   <p>
  68                     Type
  69                   </p>
  70                 </th>
  71 <th>
  72                   <p>
  73                     Concept
  74                   </p>
  75                 </th>
  76 <th>
  77                   <p>
  78                     Name
  79                   </p>
  80                 </th>
  81 <th>
  82                   <p>
  83                     Description
  84                   </p>
  85                 </th>
  86 </tr></thead>
  87 <tbody>
  88 <tr>
  89 <td>
  90                   <p>
  91                     Geometry1 const &amp;
  92                   </p>
  93                 </td>
  94 <td>
  95                   <p>
  96                     Any type fulfilling a Geometry Concept
  97                   </p>
  98                 </td>
  99 <td>
 100                   <p>
 101                     geometry1
 102                   </p>
 103                 </td>
 104 <td>
 105                   <p>
 106                     A model of the specified concept
 107                   </p>
 108                 </td>
 109 </tr>
 110 <tr>
 111 <td>
 112                   <p>
 113                     Geometry2 const &amp;
 114                   </p>
 115                 </td>
 116 <td>
 117                   <p>
 118                     Any type fulfilling a Geometry Concept
 119                   </p>
 120                 </td>
 121 <td>
 122                   <p>
 123                     geometry2
 124                   </p>
 125                 </td>
 126 <td>
 127                   <p>
 128                     A model of the specified concept
 129                   </p>
 130                 </td>
 131 </tr>
 132 </tbody>
 133 </table></div>
 134 <h6>
 135 <a name="geometry.reference.algorithms.equals.h3"></a>
 136           <span class="phrase"><a name="geometry.reference.algorithms.equals.returns"></a></span><a class="link" href="equals.html#geometry.reference.algorithms.equals.returns">Returns</a>
 137         </h6>
 138 <p>
 139           Returns true if two geometries are spatially equal
 140         </p>
 141 <h6>
 142 <a name="geometry.reference.algorithms.equals.h4"></a>
 143           <span class="phrase"><a name="geometry.reference.algorithms.equals.header"></a></span><a class="link" href="equals.html#geometry.reference.algorithms.equals.header">Header</a>
 144         </h6>
 145 <p>
 146           Either
 147         </p>
 148 <p>
 149           <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
 150         </p>
 151 <p>
 152           Or
 153         </p>
 154 <p>
 155           <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">algorithms</span><span class="special">/</span><span class="identifier">equals</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
 156         </p>
 157 <h6>
 158 <a name="geometry.reference.algorithms.equals.h5"></a>
 159           <span class="phrase"><a name="geometry.reference.algorithms.equals.conformance"></a></span><a class="link" href="equals.html#geometry.reference.algorithms.equals.conformance">Conformance</a>
 160         </h6>
 161 <p>
 162           The function equals implements function Equals from the <a href="http://www.opengeospatial.org/standards/sfa" target="_top">OGC
 163           Simple Feature Specification</a>.
 164         </p>
 165 <h6>
 166 <a name="geometry.reference.algorithms.equals.h6"></a>
 167           <span class="phrase"><a name="geometry.reference.algorithms.equals.supported_geometries"></a></span><a class="link" href="equals.html#geometry.reference.algorithms.equals.supported_geometries">Supported
 168           geometries</a>
 169         </h6>
 170 <div class="informaltable"><table class="table">
 171 <colgroup>
 172 <col>
 173 <col>
 174 <col>
 175 <col>
 176 <col>
 177 <col>
 178 <col>
 179 <col>
 180 <col>
 181 <col>
 182 <col>
 183 </colgroup>
 184 <thead><tr>
 185 <th>
 186                 </th>
 187 <th>
 188                   <p>
 189                     Point
 190                   </p>
 191                 </th>
 192 <th>
 193                   <p>
 194                     Segment
 195                   </p>
 196                 </th>
 197 <th>
 198                   <p>
 199                     Box
 200                   </p>
 201                 </th>
 202 <th>
 203                   <p>
 204                     Linestring
 205                   </p>
 206                 </th>
 207 <th>
 208                   <p>
 209                     Ring
 210                   </p>
 211                 </th>
 212 <th>
 213                   <p>
 214                     Polygon
 215                   </p>
 216                 </th>
 217 <th>
 218                   <p>
 219                     MultiPoint
 220                   </p>
 221                 </th>
 222 <th>
 223                   <p>
 224                     MultiLinestring
 225                   </p>
 226                 </th>
 227 <th>
 228                   <p>
 229                     MultiPolygon
 230                   </p>
 231                 </th>
 232 <th>
 233                   <p>
 234                     Variant
 235                   </p>
 236                 </th>
 237 </tr></thead>
 238 <tbody>
 239 <tr>
 240 <td>
 241                   <p>
 242                     Point
 243                   </p>
 244                 </td>
 245 <td>
 246                   <p>
 247                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 248                   </p>
 249                 </td>
 250 <td>
 251                   <p>
 252                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 253                   </p>
 254                 </td>
 255 <td>
 256                   <p>
 257                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 258                   </p>
 259                 </td>
 260 <td>
 261                   <p>
 262                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 263                   </p>
 264                 </td>
 265 <td>
 266                   <p>
 267                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 268                   </p>
 269                 </td>
 270 <td>
 271                   <p>
 272                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 273                   </p>
 274                 </td>
 275 <td>
 276                   <p>
 277                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 278                   </p>
 279                 </td>
 280 <td>
 281                   <p>
 282                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 283                   </p>
 284                 </td>
 285 <td>
 286                   <p>
 287                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 288                   </p>
 289                 </td>
 290 <td>
 291                   <p>
 292                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 293                   </p>
 294                 </td>
 295 </tr>
 296 <tr>
 297 <td>
 298                   <p>
 299                     Segment
 300                   </p>
 301                 </td>
 302 <td>
 303                   <p>
 304                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 305                   </p>
 306                 </td>
 307 <td>
 308                   <p>
 309                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 310                   </p>
 311                 </td>
 312 <td>
 313                   <p>
 314                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 315                   </p>
 316                 </td>
 317 <td>
 318                   <p>
 319                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 320                   </p>
 321                 </td>
 322 <td>
 323                   <p>
 324                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 325                   </p>
 326                 </td>
 327 <td>
 328                   <p>
 329                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 330                   </p>
 331                 </td>
 332 <td>
 333                   <p>
 334                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 335                   </p>
 336                 </td>
 337 <td>
 338                   <p>
 339                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 340                   </p>
 341                 </td>
 342 <td>
 343                   <p>
 344                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 345                   </p>
 346                 </td>
 347 <td>
 348                   <p>
 349                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 350                   </p>
 351                 </td>
 352 </tr>
 353 <tr>
 354 <td>
 355                   <p>
 356                     Box
 357                   </p>
 358                 </td>
 359 <td>
 360                   <p>
 361                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 362                   </p>
 363                 </td>
 364 <td>
 365                   <p>
 366                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 367                   </p>
 368                 </td>
 369 <td>
 370                   <p>
 371                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 372                   </p>
 373                 </td>
 374 <td>
 375                   <p>
 376                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 377                   </p>
 378                 </td>
 379 <td>
 380                   <p>
 381                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 382                   </p>
 383                 </td>
 384 <td>
 385                   <p>
 386                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 387                   </p>
 388                 </td>
 389 <td>
 390                   <p>
 391                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 392                   </p>
 393                 </td>
 394 <td>
 395                   <p>
 396                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 397                   </p>
 398                 </td>
 399 <td>
 400                   <p>
 401                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 402                   </p>
 403                 </td>
 404 <td>
 405                   <p>
 406                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 407                   </p>
 408                 </td>
 409 </tr>
 410 <tr>
 411 <td>
 412                   <p>
 413                     Linestring
 414                   </p>
 415                 </td>
 416 <td>
 417                   <p>
 418                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 419                   </p>
 420                 </td>
 421 <td>
 422                   <p>
 423                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 424                   </p>
 425                 </td>
 426 <td>
 427                   <p>
 428                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 429                   </p>
 430                 </td>
 431 <td>
 432                   <p>
 433                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 434                   </p>
 435                 </td>
 436 <td>
 437                   <p>
 438                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 439                   </p>
 440                 </td>
 441 <td>
 442                   <p>
 443                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 444                   </p>
 445                 </td>
 446 <td>
 447                   <p>
 448                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 449                   </p>
 450                 </td>
 451 <td>
 452                   <p>
 453                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 454                   </p>
 455                 </td>
 456 <td>
 457                   <p>
 458                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 459                   </p>
 460                 </td>
 461 <td>
 462                   <p>
 463                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 464                   </p>
 465                 </td>
 466 </tr>
 467 <tr>
 468 <td>
 469                   <p>
 470                     Ring
 471                   </p>
 472                 </td>
 473 <td>
 474                   <p>
 475                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 476                   </p>
 477                 </td>
 478 <td>
 479                   <p>
 480                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 481                   </p>
 482                 </td>
 483 <td>
 484                   <p>
 485                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 486                   </p>
 487                 </td>
 488 <td>
 489                   <p>
 490                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 491                   </p>
 492                 </td>
 493 <td>
 494                   <p>
 495                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 496                   </p>
 497                 </td>
 498 <td>
 499                   <p>
 500                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 501                   </p>
 502                 </td>
 503 <td>
 504                   <p>
 505                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 506                   </p>
 507                 </td>
 508 <td>
 509                   <p>
 510                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 511                   </p>
 512                 </td>
 513 <td>
 514                   <p>
 515                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 516                   </p>
 517                 </td>
 518 <td>
 519                   <p>
 520                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 521                   </p>
 522                 </td>
 523 </tr>
 524 <tr>
 525 <td>
 526                   <p>
 527                     Polygon
 528                   </p>
 529                 </td>
 530 <td>
 531                   <p>
 532                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 533                   </p>
 534                 </td>
 535 <td>
 536                   <p>
 537                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 538                   </p>
 539                 </td>
 540 <td>
 541                   <p>
 542                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 543                   </p>
 544                 </td>
 545 <td>
 546                   <p>
 547                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 548                   </p>
 549                 </td>
 550 <td>
 551                   <p>
 552                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 553                   </p>
 554                 </td>
 555 <td>
 556                   <p>
 557                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 558                   </p>
 559                 </td>
 560 <td>
 561                   <p>
 562                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 563                   </p>
 564                 </td>
 565 <td>
 566                   <p>
 567                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 568                   </p>
 569                 </td>
 570 <td>
 571                   <p>
 572                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 573                   </p>
 574                 </td>
 575 <td>
 576                   <p>
 577                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 578                   </p>
 579                 </td>
 580 </tr>
 581 <tr>
 582 <td>
 583                   <p>
 584                     MultiPoint
 585                   </p>
 586                 </td>
 587 <td>
 588                   <p>
 589                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 590                   </p>
 591                 </td>
 592 <td>
 593                   <p>
 594                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 595                   </p>
 596                 </td>
 597 <td>
 598                   <p>
 599                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 600                   </p>
 601                 </td>
 602 <td>
 603                   <p>
 604                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 605                   </p>
 606                 </td>
 607 <td>
 608                   <p>
 609                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 610                   </p>
 611                 </td>
 612 <td>
 613                   <p>
 614                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 615                   </p>
 616                 </td>
 617 <td>
 618                   <p>
 619                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 620                   </p>
 621                 </td>
 622 <td>
 623                   <p>
 624                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 625                   </p>
 626                 </td>
 627 <td>
 628                   <p>
 629                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 630                   </p>
 631                 </td>
 632 <td>
 633                   <p>
 634                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 635                   </p>
 636                 </td>
 637 </tr>
 638 <tr>
 639 <td>
 640                   <p>
 641                     MultiLinestring
 642                   </p>
 643                 </td>
 644 <td>
 645                   <p>
 646                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 647                   </p>
 648                 </td>
 649 <td>
 650                   <p>
 651                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 652                   </p>
 653                 </td>
 654 <td>
 655                   <p>
 656                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 657                   </p>
 658                 </td>
 659 <td>
 660                   <p>
 661                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 662                   </p>
 663                 </td>
 664 <td>
 665                   <p>
 666                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 667                   </p>
 668                 </td>
 669 <td>
 670                   <p>
 671                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 672                   </p>
 673                 </td>
 674 <td>
 675                   <p>
 676                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 677                   </p>
 678                 </td>
 679 <td>
 680                   <p>
 681                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 682                   </p>
 683                 </td>
 684 <td>
 685                   <p>
 686                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 687                   </p>
 688                 </td>
 689 <td>
 690                   <p>
 691                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 692                   </p>
 693                 </td>
 694 </tr>
 695 <tr>
 696 <td>
 697                   <p>
 698                     MultiPolygon
 699                   </p>
 700                 </td>
 701 <td>
 702                   <p>
 703                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 704                   </p>
 705                 </td>
 706 <td>
 707                   <p>
 708                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 709                   </p>
 710                 </td>
 711 <td>
 712                   <p>
 713                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 714                   </p>
 715                 </td>
 716 <td>
 717                   <p>
 718                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 719                   </p>
 720                 </td>
 721 <td>
 722                   <p>
 723                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 724                   </p>
 725                 </td>
 726 <td>
 727                   <p>
 728                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 729                   </p>
 730                 </td>
 731 <td>
 732                   <p>
 733                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 734                   </p>
 735                 </td>
 736 <td>
 737                   <p>
 738                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 739                   </p>
 740                 </td>
 741 <td>
 742                   <p>
 743                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 744                   </p>
 745                 </td>
 746 <td>
 747                   <p>
 748                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 749                   </p>
 750                 </td>
 751 </tr>
 752 <tr>
 753 <td>
 754                   <p>
 755                     Variant
 756                   </p>
 757                 </td>
 758 <td>
 759                   <p>
 760                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 761                   </p>
 762                 </td>
 763 <td>
 764                   <p>
 765                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 766                   </p>
 767                 </td>
 768 <td>
 769                   <p>
 770                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 771                   </p>
 772                 </td>
 773 <td>
 774                   <p>
 775                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 776                   </p>
 777                 </td>
 778 <td>
 779                   <p>
 780                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 781                   </p>
 782                 </td>
 783 <td>
 784                   <p>
 785                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 786                   </p>
 787                 </td>
 788 <td>
 789                   <p>
 790                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 791                   </p>
 792                 </td>
 793 <td>
 794                   <p>
 795                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 796                   </p>
 797                 </td>
 798 <td>
 799                   <p>
 800                     <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
 801                   </p>
 802                 </td>
 803 <td>
 804                   <p>
 805                     <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
 806                   </p>
 807                 </td>
 808 </tr>
 809 </tbody>
 810 </table></div>
 811 <h6>
 812 <a name="geometry.reference.algorithms.equals.h7"></a>
 813           <span class="phrase"><a name="geometry.reference.algorithms.equals.complexity"></a></span><a class="link" href="equals.html#geometry.reference.algorithms.equals.complexity">Complexity</a>
 814         </h6>
 815 <p>
 816           Linear
 817         </p>
 818 <h6>
 819 <a name="geometry.reference.algorithms.equals.h8"></a>
 820           <span class="phrase"><a name="geometry.reference.algorithms.equals.example"></a></span><a class="link" href="equals.html#geometry.reference.algorithms.equals.example">Example</a>
 821         </h6>
 822 <p>
 823           Shows the predicate equals, which returns true if two geometries are spatially
 824           equal
 825         </p>
 826 <p>
 827 </p>
 828 <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
 829
 830 <span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
 831 <span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">polygon</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
 832 <span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">adapted</span><span class="special">/</span><span class="identifier">boost_tuple</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
 833
 834 <span class="identifier">BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS</span><span class="special">(</span><span class="identifier">cs</span><span class="special">::</span><span class="identifier">cartesian</span><span class="special">)</span>
 835
 836 <span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">assign</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
 837
 838 <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
 839 <span class="special">{</span>
 840     <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">assign</span><span class="special">::</span><span class="identifier">tuple_list_of</span><span class="special">;</span>
 841
 842     <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">tuple</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">point</span><span class="special">;</span>
 843
 844     <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">polygon</span><span class="special">&lt;</span><span class="identifier">point</span><span class="special">&gt;</span> <span class="identifier">poly1</span><span class="special">,</span> <span class="identifier">poly2</span><span class="special">;</span>
 845     <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">exterior_ring</span><span class="special">(</span><span class="identifier">poly1</span><span class="special">)</span> <span class="special">=</span> <span class="identifier">tuple_list_of</span><span class="special">(</span><span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">)(</span><span class="number">0</span><span class="special">,</span> <span class="number">5</span><span class="special">)(</span><span class="number">5</span><span class="special">,</span> <span class="number">5</span><span class="special">)(</span><span class="number">5</span><span class="special">,</span> <span class="number">0</span><span class="special">)(</span><span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">);</span>
 846     <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">exterior_ring</span><span class="special">(</span><span class="identifier">poly2</span><span class="special">)</span> <span class="special">=</span> <span class="identifier">tuple_list_of</span><span class="special">(</span><span class="number">5</span><span class="special">,</span> <span class="number">0</span><span class="special">)(</span><span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">)(</span><span class="number">0</span><span class="special">,</span> <span class="number">5</span><span class="special">)(</span><span class="number">5</span><span class="special">,</span> <span class="number">5</span><span class="special">)(</span><span class="number">5</span><span class="special">,</span> <span class="number">0</span><span class="special">);</span>
 847
 848     <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span>
 849         <span class="special">&lt;&lt;</span> <span class="string">"polygons are spatially "</span>
 850         <span class="special">&lt;&lt;</span> <span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">equals</span><span class="special">(</span><span class="identifier">poly1</span><span class="special">,</span> <span class="identifier">poly2</span><span class="special">)</span> <span class="special">?</span> <span class="string">"equal"</span> <span class="special">:</span> <span class="string">"not equal"</span><span class="special">)</span>
 851         <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
 852
 853     <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">box</span><span class="special">&lt;</span><span class="identifier">point</span><span class="special">&gt;</span> <span class="identifier">box</span><span class="special">;</span>
 854     <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">assign_values</span><span class="special">(</span><span class="identifier">box</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="number">5</span><span class="special">,</span> <span class="number">5</span><span class="special">);</span>
 855
 856     <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span>
 857         <span class="special">&lt;&lt;</span> <span class="string">"polygon and box are spatially "</span>
 858         <span class="special">&lt;&lt;</span> <span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">equals</span><span class="special">(</span><span class="identifier">box</span><span class="special">,</span> <span class="identifier">poly2</span><span class="special">)</span> <span class="special">?</span> <span class="string">"equal"</span> <span class="special">:</span> <span class="string">"not equal"</span><span class="special">)</span>
 859         <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
 860
 861
 862     <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
 863 <span class="special">}</span>
 864 </pre>
 865 <p>
 866         </p>
 867 <p>
 868           Output:
 869         </p>
 870 <pre class="programlisting">polygons are spatially equal
 871 polygon and box are spatially equal
 872 </pre>
 873 </div>
 874 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 875 <td align="left"></td>
 876 <td align="right"><div class="copyright-footer">Copyright &#169; 2009-2014 Barend Gehrels, Bruno Lalande, Mateusz Loskot, Adam
 877       Wulkiewicz, Oracle and/or its affiliates<p>
 878         Distributed under the Boost Software License, Version 1.0. (See accompanying
 879         file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
 880       </p>
 881 </div></td>
 882 </tr></table>
 883 <hr>
 884 <div class="spirit-nav">
 885 <a accesskey="p" href="envelope/return_envelope.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../algorithms.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="expand.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
 886 </div>
 887 </body>
 888 </html>