libs/geometry/doc/html/geometry/reference/algorithms/equals/equals_2.html

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  25 <div class="section">
  26 <div class="titlepage"><div><div><h5 class="title">
  27 <a name="geometry.reference.algorithms.equals.equals_2"></a><a class="link" href="equals_2.html" title="equals">equals</a>
  28 </h5></div></div></div>
  29 <p>
  30             <a class="indexterm" name="idm46186999497344"></a>
  31 Checks if a geometry are spatially equal.
  32           </p>
  33 <h6>
  34 <a name="geometry.reference.algorithms.equals.equals_2.h0"></a>
  35             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_2.description"></a></span><a class="link" href="equals_2.html#geometry.reference.algorithms.equals.equals_2.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
  40             included. A box can therefore be spatially equal to a ring or a polygon,
  41             or a linestring can be spatially equal to a multi-linestring or a segment.
  42             This only works theoretically, not all combinations are implemented yet.
  43           </p>
  44 <h6>
  45 <a name="geometry.reference.algorithms.equals.equals_2.h1"></a>
  46             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_2.synopsis"></a></span><a class="link" href="equals_2.html#geometry.reference.algorithms.equals.equals_2.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.equals_2.h2"></a>
  56             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_2.parameters"></a></span><a class="link" href="equals_2.html#geometry.reference.algorithms.equals.equals_2.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.equals_2.h3"></a>
 136             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_2.returns"></a></span><a class="link" href="equals_2.html#geometry.reference.algorithms.equals.equals_2.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.equals_2.h4"></a>
 143             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_2.header"></a></span><a class="link" href="equals_2.html#geometry.reference.algorithms.equals.equals_2.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.equals_2.h5"></a>
 159             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_2.conformance"></a></span><a class="link" href="equals_2.html#geometry.reference.algorithms.equals.equals_2.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.equals_2.h6"></a>
 167             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_2.supported_geometries"></a></span><a class="link" href="equals_2.html#geometry.reference.algorithms.equals.equals_2.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.equals_2.h7"></a>
 813             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_2.complexity"></a></span><a class="link" href="equals_2.html#geometry.reference.algorithms.equals.equals_2.complexity">Complexity</a>
 814           </h6>
 815 <p>
 816             Linear
 817           </p>
 818 <h6>
 819 <a name="geometry.reference.algorithms.equals.equals_2.h8"></a>
 820             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_2.example"></a></span><a class="link" href="equals_2.html#geometry.reference.algorithms.equals.equals_2.example">Example</a>
 821           </h6>
 822 <p>
 823             Shows the predicate equals, which returns true if two geometries are
 824             spatially 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; 2009-2019 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="equals_3_with_strategy.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../equals.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>