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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_3_with_strategy"></a><a class="link" href="equals_3_with_strategy.html" title="equals (with strategy)">equals
  28           (with strategy)</a>
  29 </h5></div></div></div>
  30 <p>
  31             <a class="indexterm" name="idm46186999988208"></a>
  32 Checks if a geometry are spatially equal.
  33           </p>
  34 <h6>
  35 <a name="geometry.reference.algorithms.equals.equals_3_with_strategy.h0"></a>
  36             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_3_with_strategy.description"></a></span><a class="link" href="equals_3_with_strategy.html#geometry.reference.algorithms.equals.equals_3_with_strategy.description">Description</a>
  37           </h6>
  38 <p>
  39             The free function equals checks if the first geometry is spatially equal
  40             the second geometry. Spatially equal means that the same point set is
  41             included. A box can therefore be spatially equal to a ring or a polygon,
  42             or a linestring can be spatially equal to a multi-linestring or a segment.
  43             This only works theoretically, not all combinations are implemented yet.
  44           </p>
  45 <h6>
  46 <a name="geometry.reference.algorithms.equals.equals_3_with_strategy.h1"></a>
  47             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_3_with_strategy.synopsis"></a></span><a class="link" href="equals_3_with_strategy.html#geometry.reference.algorithms.equals.equals_3_with_strategy.synopsis">Synopsis</a>
  48           </h6>
  49 <p>
  50 </p>
  51 <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">,</span> <span class="keyword">typename</span> <span class="identifier">Strategy</span><span class="special">&gt;</span>
  52 <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> <span class="identifier">Strategy</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">strategy</span><span class="special">)</span></pre>
  53 <p>
  54           </p>
  55 <h6>
  56 <a name="geometry.reference.algorithms.equals.equals_3_with_strategy.h2"></a>
  57             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_3_with_strategy.parameters"></a></span><a class="link" href="equals_3_with_strategy.html#geometry.reference.algorithms.equals.equals_3_with_strategy.parameters">Parameters</a>
  58           </h6>
  59 <div class="informaltable"><table class="table">
  60 <colgroup>
  61 <col>
  62 <col>
  63 <col>
  64 <col>
  65 </colgroup>
  66 <thead><tr>
  67 <th>
  68                     <p>
  69                       Type
  70                     </p>
  71                   </th>
  72 <th>
  73                     <p>
  74                       Concept
  75                     </p>
  76                   </th>
  77 <th>
  78                     <p>
  79                       Name
  80                     </p>
  81                   </th>
  82 <th>
  83                     <p>
  84                       Description
  85                     </p>
  86                   </th>
  87 </tr></thead>
  88 <tbody>
  89 <tr>
  90 <td>
  91                     <p>
  92                       Geometry1 const &amp;
  93                     </p>
  94                   </td>
  95 <td>
  96                     <p>
  97                       Any type fulfilling a Geometry Concept
  98                     </p>
  99                   </td>
 100 <td>
 101                     <p>
 102                       geometry1
 103                     </p>
 104                   </td>
 105 <td>
 106                     <p>
 107                       A model of the specified concept
 108                     </p>
 109                   </td>
 110 </tr>
 111 <tr>
 112 <td>
 113                     <p>
 114                       Geometry2 const &amp;
 115                     </p>
 116                   </td>
 117 <td>
 118                     <p>
 119                       Any type fulfilling a Geometry Concept
 120                     </p>
 121                   </td>
 122 <td>
 123                     <p>
 124                       geometry2
 125                     </p>
 126                   </td>
 127 <td>
 128                     <p>
 129                       A model of the specified concept
 130                     </p>
 131                   </td>
 132 </tr>
 133 <tr>
 134 <td>
 135                     <p>
 136                       Strategy const &amp;
 137                     </p>
 138                   </td>
 139 <td>
 140                     <p>
 141                       Any type fulfilling a Equals Strategy Concept
 142                     </p>
 143                   </td>
 144 <td>
 145                     <p>
 146                       strategy
 147                     </p>
 148                   </td>
 149 <td>
 150                     <p>
 151                       The strategy which will be used for equals calculations
 152                     </p>
 153                   </td>
 154 </tr>
 155 </tbody>
 156 </table></div>
 157 <h6>
 158 <a name="geometry.reference.algorithms.equals.equals_3_with_strategy.h3"></a>
 159             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_3_with_strategy.returns"></a></span><a class="link" href="equals_3_with_strategy.html#geometry.reference.algorithms.equals.equals_3_with_strategy.returns">Returns</a>
 160           </h6>
 161 <p>
 162             Returns true if two geometries are spatially equal
 163           </p>
 164 <h6>
 165 <a name="geometry.reference.algorithms.equals.equals_3_with_strategy.h4"></a>
 166             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_3_with_strategy.header"></a></span><a class="link" href="equals_3_with_strategy.html#geometry.reference.algorithms.equals.equals_3_with_strategy.header">Header</a>
 167           </h6>
 168 <p>
 169             Either
 170           </p>
 171 <p>
 172             <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>
 173           </p>
 174 <p>
 175             Or
 176           </p>
 177 <p>
 178             <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>
 179           </p>
 180 <h6>
 181 <a name="geometry.reference.algorithms.equals.equals_3_with_strategy.h5"></a>
 182             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_3_with_strategy.conformance"></a></span><a class="link" href="equals_3_with_strategy.html#geometry.reference.algorithms.equals.equals_3_with_strategy.conformance">Conformance</a>
 183           </h6>
 184 <p>
 185             The function equals implements function Equals from the <a href="http://www.opengeospatial.org/standards/sfa" target="_top">OGC
 186             Simple Feature Specification</a>.
 187           </p>
 188 <h6>
 189 <a name="geometry.reference.algorithms.equals.equals_3_with_strategy.h6"></a>
 190             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_3_with_strategy.supported_geometries"></a></span><a class="link" href="equals_3_with_strategy.html#geometry.reference.algorithms.equals.equals_3_with_strategy.supported_geometries">Supported
 191             geometries</a>
 192           </h6>
 193 <div class="informaltable"><table class="table">
 194 <colgroup>
 195 <col>
 196 <col>
 197 <col>
 198 <col>
 199 <col>
 200 <col>
 201 <col>
 202 <col>
 203 <col>
 204 <col>
 205 <col>
 206 </colgroup>
 207 <thead><tr>
 208 <th>
 209                   </th>
 210 <th>
 211                     <p>
 212                       Point
 213                     </p>
 214                   </th>
 215 <th>
 216                     <p>
 217                       Segment
 218                     </p>
 219                   </th>
 220 <th>
 221                     <p>
 222                       Box
 223                     </p>
 224                   </th>
 225 <th>
 226                     <p>
 227                       Linestring
 228                     </p>
 229                   </th>
 230 <th>
 231                     <p>
 232                       Ring
 233                     </p>
 234                   </th>
 235 <th>
 236                     <p>
 237                       Polygon
 238                     </p>
 239                   </th>
 240 <th>
 241                     <p>
 242                       MultiPoint
 243                     </p>
 244                   </th>
 245 <th>
 246                     <p>
 247                       MultiLinestring
 248                     </p>
 249                   </th>
 250 <th>
 251                     <p>
 252                       MultiPolygon
 253                     </p>
 254                   </th>
 255 <th>
 256                     <p>
 257                       Variant
 258                     </p>
 259                   </th>
 260 </tr></thead>
 261 <tbody>
 262 <tr>
 263 <td>
 264                     <p>
 265                       Point
 266                     </p>
 267                   </td>
 268 <td>
 269                     <p>
 270                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 271                     </p>
 272                   </td>
 273 <td>
 274                     <p>
 275                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 276                     </p>
 277                   </td>
 278 <td>
 279                     <p>
 280                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 281                     </p>
 282                   </td>
 283 <td>
 284                     <p>
 285                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 286                     </p>
 287                   </td>
 288 <td>
 289                     <p>
 290                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 291                     </p>
 292                   </td>
 293 <td>
 294                     <p>
 295                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 296                     </p>
 297                   </td>
 298 <td>
 299                     <p>
 300                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 301                     </p>
 302                   </td>
 303 <td>
 304                     <p>
 305                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 306                     </p>
 307                   </td>
 308 <td>
 309                     <p>
 310                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 311                     </p>
 312                   </td>
 313 <td>
 314                     <p>
 315                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 316                     </p>
 317                   </td>
 318 </tr>
 319 <tr>
 320 <td>
 321                     <p>
 322                       Segment
 323                     </p>
 324                   </td>
 325 <td>
 326                     <p>
 327                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 328                     </p>
 329                   </td>
 330 <td>
 331                     <p>
 332                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 333                     </p>
 334                   </td>
 335 <td>
 336                     <p>
 337                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 338                     </p>
 339                   </td>
 340 <td>
 341                     <p>
 342                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 343                     </p>
 344                   </td>
 345 <td>
 346                     <p>
 347                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 348                     </p>
 349                   </td>
 350 <td>
 351                     <p>
 352                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 353                     </p>
 354                   </td>
 355 <td>
 356                     <p>
 357                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 358                     </p>
 359                   </td>
 360 <td>
 361                     <p>
 362                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 363                     </p>
 364                   </td>
 365 <td>
 366                     <p>
 367                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 368                     </p>
 369                   </td>
 370 <td>
 371                     <p>
 372                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 373                     </p>
 374                   </td>
 375 </tr>
 376 <tr>
 377 <td>
 378                     <p>
 379                       Box
 380                     </p>
 381                   </td>
 382 <td>
 383                     <p>
 384                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 385                     </p>
 386                   </td>
 387 <td>
 388                     <p>
 389                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 390                     </p>
 391                   </td>
 392 <td>
 393                     <p>
 394                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 395                     </p>
 396                   </td>
 397 <td>
 398                     <p>
 399                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 400                     </p>
 401                   </td>
 402 <td>
 403                     <p>
 404                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 405                     </p>
 406                   </td>
 407 <td>
 408                     <p>
 409                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 410                     </p>
 411                   </td>
 412 <td>
 413                     <p>
 414                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 415                     </p>
 416                   </td>
 417 <td>
 418                     <p>
 419                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 420                     </p>
 421                   </td>
 422 <td>
 423                     <p>
 424                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 425                     </p>
 426                   </td>
 427 <td>
 428                     <p>
 429                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 430                     </p>
 431                   </td>
 432 </tr>
 433 <tr>
 434 <td>
 435                     <p>
 436                       Linestring
 437                     </p>
 438                   </td>
 439 <td>
 440                     <p>
 441                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 442                     </p>
 443                   </td>
 444 <td>
 445                     <p>
 446                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 447                     </p>
 448                   </td>
 449 <td>
 450                     <p>
 451                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 452                     </p>
 453                   </td>
 454 <td>
 455                     <p>
 456                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 457                     </p>
 458                   </td>
 459 <td>
 460                     <p>
 461                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 462                     </p>
 463                   </td>
 464 <td>
 465                     <p>
 466                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 467                     </p>
 468                   </td>
 469 <td>
 470                     <p>
 471                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 472                     </p>
 473                   </td>
 474 <td>
 475                     <p>
 476                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 477                     </p>
 478                   </td>
 479 <td>
 480                     <p>
 481                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 482                     </p>
 483                   </td>
 484 <td>
 485                     <p>
 486                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 487                     </p>
 488                   </td>
 489 </tr>
 490 <tr>
 491 <td>
 492                     <p>
 493                       Ring
 494                     </p>
 495                   </td>
 496 <td>
 497                     <p>
 498                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 499                     </p>
 500                   </td>
 501 <td>
 502                     <p>
 503                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 504                     </p>
 505                   </td>
 506 <td>
 507                     <p>
 508                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 509                     </p>
 510                   </td>
 511 <td>
 512                     <p>
 513                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 514                     </p>
 515                   </td>
 516 <td>
 517                     <p>
 518                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 519                     </p>
 520                   </td>
 521 <td>
 522                     <p>
 523                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 524                     </p>
 525                   </td>
 526 <td>
 527                     <p>
 528                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 529                     </p>
 530                   </td>
 531 <td>
 532                     <p>
 533                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 534                     </p>
 535                   </td>
 536 <td>
 537                     <p>
 538                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 539                     </p>
 540                   </td>
 541 <td>
 542                     <p>
 543                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 544                     </p>
 545                   </td>
 546 </tr>
 547 <tr>
 548 <td>
 549                     <p>
 550                       Polygon
 551                     </p>
 552                   </td>
 553 <td>
 554                     <p>
 555                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 556                     </p>
 557                   </td>
 558 <td>
 559                     <p>
 560                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 561                     </p>
 562                   </td>
 563 <td>
 564                     <p>
 565                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 566                     </p>
 567                   </td>
 568 <td>
 569                     <p>
 570                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 571                     </p>
 572                   </td>
 573 <td>
 574                     <p>
 575                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 576                     </p>
 577                   </td>
 578 <td>
 579                     <p>
 580                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 581                     </p>
 582                   </td>
 583 <td>
 584                     <p>
 585                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 586                     </p>
 587                   </td>
 588 <td>
 589                     <p>
 590                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 591                     </p>
 592                   </td>
 593 <td>
 594                     <p>
 595                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 596                     </p>
 597                   </td>
 598 <td>
 599                     <p>
 600                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 601                     </p>
 602                   </td>
 603 </tr>
 604 <tr>
 605 <td>
 606                     <p>
 607                       MultiPoint
 608                     </p>
 609                   </td>
 610 <td>
 611                     <p>
 612                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 613                     </p>
 614                   </td>
 615 <td>
 616                     <p>
 617                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 618                     </p>
 619                   </td>
 620 <td>
 621                     <p>
 622                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 623                     </p>
 624                   </td>
 625 <td>
 626                     <p>
 627                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 628                     </p>
 629                   </td>
 630 <td>
 631                     <p>
 632                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 633                     </p>
 634                   </td>
 635 <td>
 636                     <p>
 637                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 638                     </p>
 639                   </td>
 640 <td>
 641                     <p>
 642                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 643                     </p>
 644                   </td>
 645 <td>
 646                     <p>
 647                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 648                     </p>
 649                   </td>
 650 <td>
 651                     <p>
 652                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 653                     </p>
 654                   </td>
 655 <td>
 656                     <p>
 657                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 658                     </p>
 659                   </td>
 660 </tr>
 661 <tr>
 662 <td>
 663                     <p>
 664                       MultiLinestring
 665                     </p>
 666                   </td>
 667 <td>
 668                     <p>
 669                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 670                     </p>
 671                   </td>
 672 <td>
 673                     <p>
 674                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 675                     </p>
 676                   </td>
 677 <td>
 678                     <p>
 679                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 680                     </p>
 681                   </td>
 682 <td>
 683                     <p>
 684                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 685                     </p>
 686                   </td>
 687 <td>
 688                     <p>
 689                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 690                     </p>
 691                   </td>
 692 <td>
 693                     <p>
 694                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 695                     </p>
 696                   </td>
 697 <td>
 698                     <p>
 699                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 700                     </p>
 701                   </td>
 702 <td>
 703                     <p>
 704                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 705                     </p>
 706                   </td>
 707 <td>
 708                     <p>
 709                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 710                     </p>
 711                   </td>
 712 <td>
 713                     <p>
 714                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 715                     </p>
 716                   </td>
 717 </tr>
 718 <tr>
 719 <td>
 720                     <p>
 721                       MultiPolygon
 722                     </p>
 723                   </td>
 724 <td>
 725                     <p>
 726                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 727                     </p>
 728                   </td>
 729 <td>
 730                     <p>
 731                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 732                     </p>
 733                   </td>
 734 <td>
 735                     <p>
 736                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 737                     </p>
 738                   </td>
 739 <td>
 740                     <p>
 741                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 742                     </p>
 743                   </td>
 744 <td>
 745                     <p>
 746                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 747                     </p>
 748                   </td>
 749 <td>
 750                     <p>
 751                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 752                     </p>
 753                   </td>
 754 <td>
 755                     <p>
 756                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 757                     </p>
 758                   </td>
 759 <td>
 760                     <p>
 761                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 762                     </p>
 763                   </td>
 764 <td>
 765                     <p>
 766                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 767                     </p>
 768                   </td>
 769 <td>
 770                     <p>
 771                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 772                     </p>
 773                   </td>
 774 </tr>
 775 <tr>
 776 <td>
 777                     <p>
 778                       Variant
 779                     </p>
 780                   </td>
 781 <td>
 782                     <p>
 783                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 784                     </p>
 785                   </td>
 786 <td>
 787                     <p>
 788                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 789                     </p>
 790                   </td>
 791 <td>
 792                     <p>
 793                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 794                     </p>
 795                   </td>
 796 <td>
 797                     <p>
 798                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 799                     </p>
 800                   </td>
 801 <td>
 802                     <p>
 803                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 804                     </p>
 805                   </td>
 806 <td>
 807                     <p>
 808                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 809                     </p>
 810                   </td>
 811 <td>
 812                     <p>
 813                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 814                     </p>
 815                   </td>
 816 <td>
 817                     <p>
 818                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 819                     </p>
 820                   </td>
 821 <td>
 822                     <p>
 823                       <span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
 824                     </p>
 825                   </td>
 826 <td>
 827                     <p>
 828                       <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
 829                     </p>
 830                   </td>
 831 </tr>
 832 </tbody>
 833 </table></div>
 834 <h6>
 835 <a name="geometry.reference.algorithms.equals.equals_3_with_strategy.h7"></a>
 836             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_3_with_strategy.complexity"></a></span><a class="link" href="equals_3_with_strategy.html#geometry.reference.algorithms.equals.equals_3_with_strategy.complexity">Complexity</a>
 837           </h6>
 838 <p>
 839             Linear
 840           </p>
 841 <h6>
 842 <a name="geometry.reference.algorithms.equals.equals_3_with_strategy.h8"></a>
 843             <span class="phrase"><a name="geometry.reference.algorithms.equals.equals_3_with_strategy.example"></a></span><a class="link" href="equals_3_with_strategy.html#geometry.reference.algorithms.equals.equals_3_with_strategy.example">Example</a>
 844           </h6>
 845 <p>
 846             Shows the predicate equals, which returns true if two geometries are
 847             spatially equal
 848           </p>
 849 <p>
 850 </p>
 851 <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
 852
 853 <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>
 854 <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>
 855 <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>
 856
 857 <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>
 858
 859 <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>
 860
 861 <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
 862 <span class="special">{</span>
 863     <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>
 864
 865     <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>
 866
 867     <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>
 868     <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>
 869     <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>
 870
 871     <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span>
 872         <span class="special">&lt;&lt;</span> <span class="string">"polygons are spatially "</span>
 873         <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>
 874         <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
 875
 876     <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>
 877     <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>
 878
 879     <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span>
 880         <span class="special">&lt;&lt;</span> <span class="string">"polygon and box are spatially "</span>
 881         <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>
 882         <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
 883
 884
 885     <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
 886 <span class="special">}</span>
 887 </pre>
 888 <p>
 889           </p>
 890 <p>
 891             Output:
 892           </p>
 893 <pre class="programlisting">polygons are spatially equal
 894 polygon and box are spatially equal
 895 </pre>
 896 </div>
 897 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 898 <td align="left"></td>
 899 <td align="right"><div class="copyright-footer">Copyright &#169; 2009-2019 Barend Gehrels, Bruno Lalande, Mateusz Loskot, Adam
 900       Wulkiewicz, Oracle and/or its affiliates<p>
 901         Distributed under the Boost Software License, Version 1.0. (See accompanying
 902         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>)
 903       </p>
 904 </div></td>
 905 </tr></table>
 906 <hr>
 907 <div class="spirit-nav">
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