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    46. 

  46.                         <li class="phpdocumentor-topnav__menu-item -menu">
    47. 

  47.                 <a href="https://php-qrcode.readthedocs.io">
    48. 

  48.                     <span>
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  49.                                                                         User Manual
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    82. 

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    83. 

  83.     <a href="namespaces/chillerlan.html" class="">chillerlan</a>
    84. 

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    85. 

  85.     <ul class="phpdocumentor-list">
    86. 

  86.                     <li>
    87. 

  87.                 <a href="namespaces/chillerlan-qrcode.html" class="">QRCode</a>
    88. 

  88.                 
    89. 

  89.             </li>
    90. 

  90.                     <li>
    91. 

  91.                 <a href="namespaces/chillerlan-qrcodetest.html" class="">QRCodeTest</a>
    92. 

  92.                 
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    95. 

  95. 

  96.                         </section>
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    98. 

  98.             <h2 class="phpdocumentor-sidebar__category-header">Packages</h2>
    99. 

  99.                                     <h4 class="phpdocumentor-sidebar__root-namespace">
    100. 

  100.     <a href="packages/Application.html" class="">Application</a>
    101. 

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    102. 

  102. 

  103.                         </section>
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    106. 

  106.         <h2 class="phpdocumentor-sidebar__category-header">Reports</h2>
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  107.                 <h3 class="phpdocumentor-sidebar__root-package"><a href="reports/deprecated.html">Deprecated</a></h3>
    108. 

  108.         <h3 class="phpdocumentor-sidebar__root-package"><a href="reports/errors.html">Errors</a></h3>
    109. 

  109.         <h3 class="phpdocumentor-sidebar__root-package"><a href="reports/markers.html">Markers</a></h3>
    110. 

  110.     </section>
    111. 

  111. 

  112.     <section class="phpdocumentor-sidebar__category -indices">
    113. 

  113.         <h2 class="phpdocumentor-sidebar__category-header">Indices</h2>
    114. 

  114.         <h3 class="phpdocumentor-sidebar__root-package"><a href="indices/files.html">Files</a></h3>
    115. 

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    117. 

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    121. 

  121.             <li class="phpdocumentor-breadcrumb"><a href="namespaces/chillerlan.html">chillerlan</a></li>
    122. 

  122.             <li class="phpdocumentor-breadcrumb"><a href="namespaces/chillerlan-qrcode.html">QRCode</a></li>
    123. 

  123.             <li class="phpdocumentor-breadcrumb"><a href="namespaces/chillerlan-qrcode-detector.html">Detector</a></li>
    124. 

  124.     </ul>
    125. 

  125. 

  126.     <article class="phpdocumentor-element -class">
    127. 

  127.         <h2 class="phpdocumentor-content__title">
    128. 

  128.     FinderPatternFinder
    129. 

  129. 

  130.     
    131. 

  131.             <div class="phpdocumentor-element__package">
    132. 

  132.             in package
    133. 

  133.             <ul class="phpdocumentor-breadcrumbs">
    134. 

  134.                                     <li class="phpdocumentor-breadcrumb"><a href="packages/Application.html">Application</a></li>
    135. 

  135.                             </ul>
    136. 

  136.         </div>
    137. 

  137.     
    138. 

  138.     
    139. 

  139.     </h2>
    140. 

  140. 

  141. <div class="phpdocumentor-label-line">
    142. 

  142. 

  143.     <div class="phpdocumentor-label phpdocumentor-label--success"><span>Final</span><span>Yes</span></div>
    144. 

  144. 

  145. 

  146. </div>
    147. 

  147. 

  148.         <aside class="phpdocumentor-element-found-in">
    149. 

  149.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    150. 

  150.     :
    151. 

  151.     <span class="phpdocumentor-element-found-in__line">27</span>
    152. 

  152. 

  153.     </aside>
    154. 

  154. 

  155.             <p class="phpdocumentor-summary">This class attempts to find finder patterns in a QR Code. Finder patterns are the square
    156. 

  156. markers at three corners of a QR Code.</p>
    157. 

  157. 

  158. 

  159.     <section class="phpdocumentor-description"><p>This class is thread-safe but not reentrant. Each thread must allocate its own object.</p>
    160. 

  160. </section>
    161. 

  161. 

  162. 

  163.     <h5 class="phpdocumentor-tag-list__heading" id="tags">
    164. 

  164.         Tags
    165. 

  165.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#tags" class="headerlink"><i class="fas fa-link"></i></a>
    166. 

  166. 

  167.     </h5>
    168. 

  168.     <dl class="phpdocumentor-tag-list">
    169. 

  169.                                     <dt class="phpdocumentor-tag-list__entry">
    170. 

  170.                     <span class="phpdocumentor-tag__name">author</span>
    171. 

  171.                 </dt>
    172. 

  172.                 <dd class="phpdocumentor-tag-list__definition">
    173. 

  173.                                                                                 
    174. 

  174.                                                  <section class="phpdocumentor-description"><p>Sean Owen</p>
    175. 

  175. </section>
    176. 

  176. 

  177.                                     </dd>
    178. 

  178.                                             </dl>
    179. 

  179. 

  180. 

  181. 

  182. 

  183. 

  184. <h3 id="toc">
    185. 

  185.     Table of Contents
    186. 

  186.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#toc" class="headerlink"><i class="fas fa-link"></i></a>
    187. 

  187. 

  188. </h3>
    189. 

  189. 

  190. 

  191. 

  192. 

  193. 

  194. 

  195. 

  196. <h4 id="toc-constants">
    197. 

  197.     Constants
    198. 

  198.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#toc-constants" class="headerlink"><i class="fas fa-link"></i></a>
    199. 

  199. 

  200. </h4>
    201. 

  201. <dl class="phpdocumentor-table-of-contents">
    202. 

  202.             <dt class="phpdocumentor-table-of-contents__entry -constant -private">
    203. 

  203.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_CENTER_QUORUM">CENTER_QUORUM</a>
    204. 

  204.     <span>
    205. 

  205.         &nbsp;= 2                            </span>
    206. 

  206. </dt>
    207. 

  207. 

  208.             <dt class="phpdocumentor-table-of-contents__entry -constant -private">
    209. 

  209.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_MAX_MODULES">MAX_MODULES</a>
    210. 

  210.     <span>
    211. 

  211.         &nbsp;= 177                            </span>
    212. 

  212. </dt>
    213. 

  213. 

  214.             <dt class="phpdocumentor-table-of-contents__entry -constant -private">
    215. 

  215.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_MIN_SKIP">MIN_SKIP</a>
    216. 

  216.     <span>
    217. 

  217.         &nbsp;= 2                            </span>
    218. 

  218. </dt>
    219. 

  219. 

  220.     </dl>
    221. 

  221. 

  222. 

  223. <h4 id="toc-properties">
    224. 

  224.     Properties
    225. 

  225.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#toc-properties" class="headerlink"><i class="fas fa-link"></i></a>
    226. 

  226. 

  227. </h4>
    228. 

  228. <dl class="phpdocumentor-table-of-contents">
    229. 

  229.             <dt class="phpdocumentor-table-of-contents__entry -property -private">
    230. 

  230.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_hasSkipped">$hasSkipped</a>
    231. 

  231.     <span>
    232. 

  232.                         &nbsp;: bool            </span>
    233. 

  233. </dt>
    234. 

  234. 

  235.             <dt class="phpdocumentor-table-of-contents__entry -property -private">
    236. 

  236.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_matrix">$matrix</a>
    237. 

  237.     <span>
    238. 

  238.                         &nbsp;: <a href="classes/chillerlan-QRCode-Decoder-BitMatrix.html"><abbr title="\chillerlan\QRCode\Decoder\BitMatrix">BitMatrix</abbr></a>            </span>
    239. 

  239. </dt>
    240. 

  240. 

  241.             <dt class="phpdocumentor-table-of-contents__entry -property -private">
    242. 

  242.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_possibleCenters">$possibleCenters</a>
    243. 

  243.     <span>
    244. 

  244.                         &nbsp;: array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;            </span>
    245. 

  245. </dt>
    246. 

  246. 

  247.     </dl>
    248. 

  248. 

  249. <h4 id="toc-methods">
    250. 

  250.     Methods
    251. 

  251.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#toc-methods" class="headerlink"><i class="fas fa-link"></i></a>
    252. 

  252. 

  253. </h4>
    254. 

  254. <dl class="phpdocumentor-table-of-contents">
    255. 

  255.             <dt class="phpdocumentor-table-of-contents__entry -method -public">
    256. 

  256.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method___construct">__construct()</a>
    257. 

  257.     <span>
    258. 

  258.                                 &nbsp;: mixed    </span>
    259. 

  259. </dt>
    260. 

  260. <dd>Creates a finder that will search the image for three finder patterns.</dd>
    261. 

  261. 

  262.             <dt class="phpdocumentor-table-of-contents__entry -method -public">
    263. 

  263.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_find">find()</a>
    264. 

  264.     <span>
    265. 

  265.                                 &nbsp;: array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;    </span>
    266. 

  266. </dt>
    267. 

  267. 

  268.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    269. 

  269.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_centerFromEnd">centerFromEnd()</a>
    270. 

  270.     <span>
    271. 

  271.                                 &nbsp;: float    </span>
    272. 

  272. </dt>
    273. 

  273. <dd>Given a count of black/white/black/white/black pixels just seen and an end position,
    274. 

  274. figures the location of the center of this run.</dd>
    275. 

  275. 

  276.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    277. 

  277.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckDiagonal">crossCheckDiagonal()</a>
    278. 

  278.     <span>
    279. 

  279.                                 &nbsp;: bool    </span>
    280. 

  280. </dt>
    281. 

  281. <dd>After a vertical and horizontal scan finds a potential finder pattern, this method
    282. 

  282. &quot;cross-cross-cross-checks&quot; by scanning down diagonally through the center of the possible
    283. 

  283. finder pattern to see if the same proportion is detected.</dd>
    284. 

  284. 

  285.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    286. 

  286.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckHorizontal">crossCheckHorizontal()</a>
    287. 

  287.     <span>
    288. 

  288.                                 &nbsp;: float|null    </span>
    289. 

  289. </dt>
    290. 

  290. <dd>Like #crossCheckVertical(int, int, int, int), and in fact is basically identical,
    291. 

  291. except it reads horizontally instead of vertically. This is used to cross-cross
    292. 

  292. check a vertical cross-check and locate the real center of the alignment pattern.</dd>
    293. 

  293. 

  294.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    295. 

  295.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckVertical">crossCheckVertical()</a>
    296. 

  296.     <span>
    297. 

  297.                                 &nbsp;: float|null    </span>
    298. 

  298. </dt>
    299. 

  299. <dd>After a horizontal scan finds a potential finder pattern, this method
    300. 

  300. &quot;cross-checks&quot; by scanning down vertically through the center of the possible
    301. 

  301. finder pattern to see if the same proportion is detected.</dd>
    302. 

  302. 

  303.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    304. 

  304.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossProductZ">crossProductZ()</a>
    305. 

  305.     <span>
    306. 

  306.                                 &nbsp;: float    </span>
    307. 

  307. </dt>
    308. 

  308. <dd>Returns the z component of the cross product between vectors BC and BA.</dd>
    309. 

  309. 

  310.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    311. 

  311.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_doShiftCounts2">doShiftCounts2()</a>
    312. 

  312.     <span>
    313. 

  313.                                 &nbsp;: array&lt;string|int, int&gt;    </span>
    314. 

  314. </dt>
    315. 

  315. 

  316.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    317. 

  317.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_findRowSkip">findRowSkip()</a>
    318. 

  318.     <span>
    319. 

  319.                                 &nbsp;: int    </span>
    320. 

  320. </dt>
    321. 

  321. 

  322.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    323. 

  323.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternCross">foundPatternCross()</a>
    324. 

  324.     <span>
    325. 

  325.                                 &nbsp;: bool    </span>
    326. 

  326. </dt>
    327. 

  327. 

  328.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    329. 

  329.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternDiagonal">foundPatternDiagonal()</a>
    330. 

  330.     <span>
    331. 

  331.                                 &nbsp;: bool    </span>
    332. 

  332. </dt>
    333. 

  333. 

  334.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    335. 

  335.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternVariance">foundPatternVariance()</a>
    336. 

  336.     <span>
    337. 

  337.                                 &nbsp;: bool    </span>
    338. 

  338. </dt>
    339. 

  339. 

  340.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    341. 

  341.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_getCrossCheckStateCount">getCrossCheckStateCount()</a>
    342. 

  342.     <span>
    343. 

  343.                                 &nbsp;: array&lt;string|int, int&gt;    </span>
    344. 

  344. </dt>
    345. 

  345. 

  346.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    347. 

  347.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_handlePossibleCenter">handlePossibleCenter()</a>
    348. 

  348.     <span>
    349. 

  349.                                 &nbsp;: bool    </span>
    350. 

  350. </dt>
    351. 

  351. <dd>This is called when a horizontal scan finds a possible alignment pattern. It will
    352. 

  352. cross-check with a vertical scan, and if successful, will, ah, cross-cross-check
    353. 

  353. with another horizontal scan. This is needed primarily to locate the real horizontal
    354. 

  354. center of the pattern in cases of extreme skew.</dd>
    355. 

  355. 

  356.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    357. 

  357.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_haveMultiplyConfirmedCenters">haveMultiplyConfirmedCenters()</a>
    358. 

  358.     <span>
    359. 

  359.                                 &nbsp;: bool    </span>
    360. 

  360. </dt>
    361. 

  361. 

  362.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    363. 

  363.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_orderBestPatterns">orderBestPatterns()</a>
    364. 

  364.     <span>
    365. 

  365.                                 &nbsp;: array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;    </span>
    366. 

  366. </dt>
    367. 

  367. <dd>Orders an array of three ResultPoints in an order [A,B,C] such that AB is less than AC
    368. 

  368. and BC is less than AC, and the angle between BC and BA is less than 180 degrees.</dd>
    369. 

  369. 

  370.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    371. 

  371.     <a class="" href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_selectBestPatterns">selectBestPatterns()</a>
    372. 

  372.     <span>
    373. 

  373.                                 &nbsp;: array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;    </span>
    374. 

  374. </dt>
    375. 

  375. 

  376.     </dl>
    377. 

  377. 

  378. 

  379. 

  380.         
    381. 

  381.     <section class="phpdocumentor-constants">
    382. 

  382.         <h3 class="phpdocumentor-elements__header" id="constants">
    383. 

  383.             Constants
    384. 

  384.             <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constants" class="headerlink"><i class="fas fa-link"></i></a>
    385. 

  385. 

  386.         </h3>
    387. 

  387.                     <article class="phpdocumentor-element -constant -private ">
    388. 

  388.     <h4 class="phpdocumentor-element__name" id="constant_CENTER_QUORUM">
    389. 

  389.         CENTER_QUORUM
    390. 

  390.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_CENTER_QUORUM" class="headerlink"><i class="fas fa-link"></i></a>
    391. 

  391. 

  392.     </h4>
    393. 

  393. 

  394.     <aside class="phpdocumentor-element-found-in">
    395. 

  395.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    396. 

  396.     :
    397. 

  397.     <span class="phpdocumentor-element-found-in__line">31</span>
    398. 

  398. 

  399.     </aside>
    400. 

  400. 

  401.     
    402. 

  402.     
    403. 

  403.     <code class="phpdocumentor-signature phpdocumentor-code ">
    404. 

  404.     <span class="phpdocumentor-signature__visibility">private</span>
    405. 

  405.         <span class="phpdocumentor-signature__type">mixed</span>
    406. 

  406.     <span class="phpdocumentor-signature__name">CENTER_QUORUM</span>
    407. 

  407.     = <span class="phpdocumentor-signature__default-value">2</span>
    408. 

  408. </code>
    409. 

  409. 

  410. 

  411.     
    412. 

  412.     
    413. 

  413.     
    414. 

  414. 

  415.     
    416. 

  416. 

  417. </article>
    418. 

  418.                     <article class="phpdocumentor-element -constant -private ">
    419. 

  419.     <h4 class="phpdocumentor-element__name" id="constant_MAX_MODULES">
    420. 

  420.         MAX_MODULES
    421. 

  421.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_MAX_MODULES" class="headerlink"><i class="fas fa-link"></i></a>
    422. 

  422. 

  423.     </h4>
    424. 

  424. 

  425.     <aside class="phpdocumentor-element-found-in">
    426. 

  426.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    427. 

  427.     :
    428. 

  428.     <span class="phpdocumentor-element-found-in__line">30</span>
    429. 

  429. 

  430.     </aside>
    431. 

  431. 

  432.     
    433. 

  433.     
    434. 

  434.     <code class="phpdocumentor-signature phpdocumentor-code ">
    435. 

  435.     <span class="phpdocumentor-signature__visibility">private</span>
    436. 

  436.         <span class="phpdocumentor-signature__type">mixed</span>
    437. 

  437.     <span class="phpdocumentor-signature__name">MAX_MODULES</span>
    438. 

  438.     = <span class="phpdocumentor-signature__default-value">177</span>
    439. 

  439. </code>
    440. 

  440. 

  441. 

  442.     
    443. 

  443.     
    444. 

  444.     
    445. 

  445. 

  446.     
    447. 

  447. 

  448. </article>
    449. 

  449.                     <article class="phpdocumentor-element -constant -private ">
    450. 

  450.     <h4 class="phpdocumentor-element__name" id="constant_MIN_SKIP">
    451. 

  451.         MIN_SKIP
    452. 

  452.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_MIN_SKIP" class="headerlink"><i class="fas fa-link"></i></a>
    453. 

  453. 

  454.     </h4>
    455. 

  455. 

  456.     <aside class="phpdocumentor-element-found-in">
    457. 

  457.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    458. 

  458.     :
    459. 

  459.     <span class="phpdocumentor-element-found-in__line">29</span>
    460. 

  460. 

  461.     </aside>
    462. 

  462. 

  463.     
    464. 

  464.     
    465. 

  465.     <code class="phpdocumentor-signature phpdocumentor-code ">
    466. 

  466.     <span class="phpdocumentor-signature__visibility">private</span>
    467. 

  467.         <span class="phpdocumentor-signature__type">mixed</span>
    468. 

  468.     <span class="phpdocumentor-signature__name">MIN_SKIP</span>
    469. 

  469.     = <span class="phpdocumentor-signature__default-value">2</span>
    470. 

  470. </code>
    471. 

  471. 

  472. 

  473.     
    474. 

  474.     
    475. 

  475.     
    476. 

  476. 

  477.     
    478. 

  478. 

  479. </article>
    480. 

  480.             </section>
    481. 

  481. 

  482.         
    483. 

  483.     <section class="phpdocumentor-properties">
    484. 

  484.         <h3 class="phpdocumentor-elements__header" id="properties">
    485. 

  485.             Properties
    486. 

  486.             <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#properties" class="headerlink"><i class="fas fa-link"></i></a>
    487. 

  487. 

  488.         </h3>
    489. 

  489.                     <article
    490. 

  490.         class="
    491. 

  491.             phpdocumentor-element
    492. 

  492.             -property
    493. 

  493.             -private
    494. 

  494.                                                         "
    495. 

  495. >
    496. 

  496.     <h4 class="phpdocumentor-element__name" id="property_hasSkipped">
    497. 

  497.         $hasSkipped
    498. 

  498.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_hasSkipped" class="headerlink"><i class="fas fa-link"></i></a>
    499. 

  499. 

  500.         <span class="phpdocumentor-element__modifiers">
    501. 

  501.                                 </span>
    502. 

  502.     </h4>
    503. 

  503.     <aside class="phpdocumentor-element-found-in">
    504. 

  504.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    505. 

  505.     :
    506. 

  506.     <span class="phpdocumentor-element-found-in__line">35</span>
    507. 

  507. 

  508.     </aside>
    509. 

  509. 

  510.     
    511. 

  511.     
    512. 

  512.     <code class="phpdocumentor-code phpdocumentor-signature ">
    513. 

  513.     <span class="phpdocumentor-signature__visibility">private</span>
    514. 

  514.         <span class="phpdocumentor-signature__type">bool</span>
    515. 

  515.     <span class="phpdocumentor-signature__name">$hasSkipped</span>
    516. 

  516.      = <span class="phpdocumentor-signature__default-value">false</span></code>
    517. 

  517. 

  518.     
    519. 

  519.     
    520. 

  520.     
    521. 

  521. 

  522.     
    523. 

  523. 

  524. </article>
    525. 

  525.                     <article
    526. 

  526.         class="
    527. 

  527.             phpdocumentor-element
    528. 

  528.             -property
    529. 

  529.             -private
    530. 

  530.                                                         "
    531. 

  531. >
    532. 

  532.     <h4 class="phpdocumentor-element__name" id="property_matrix">
    533. 

  533.         $matrix
    534. 

  534.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_matrix" class="headerlink"><i class="fas fa-link"></i></a>
    535. 

  535. 

  536.         <span class="phpdocumentor-element__modifiers">
    537. 

  537.                                 </span>
    538. 

  538.     </h4>
    539. 

  539.     <aside class="phpdocumentor-element-found-in">
    540. 

  540.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    541. 

  541.     :
    542. 

  542.     <span class="phpdocumentor-element-found-in__line">32</span>
    543. 

  543. 

  544.     </aside>
    545. 

  545. 

  546.     
    547. 

  547.     
    548. 

  548.     <code class="phpdocumentor-code phpdocumentor-signature ">
    549. 

  549.     <span class="phpdocumentor-signature__visibility">private</span>
    550. 

  550.         <span class="phpdocumentor-signature__type"><a href="classes/chillerlan-QRCode-Decoder-BitMatrix.html"><abbr title="\chillerlan\QRCode\Decoder\BitMatrix">BitMatrix</abbr></a></span>
    551. 

  551.     <span class="phpdocumentor-signature__name">$matrix</span>
    552. 

  552.     </code>
    553. 

  553. 

  554.     
    555. 

  555.     
    556. 

  556.     
    557. 

  557. 

  558.     
    559. 

  559. 

  560. </article>
    561. 

  561.                     <article
    562. 

  562.         class="
    563. 

  563.             phpdocumentor-element
    564. 

  564.             -property
    565. 

  565.             -private
    566. 

  566.                                                         "
    567. 

  567. >
    568. 

  568.     <h4 class="phpdocumentor-element__name" id="property_possibleCenters">
    569. 

  569.         $possibleCenters
    570. 

  570.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_possibleCenters" class="headerlink"><i class="fas fa-link"></i></a>
    571. 

  571. 

  572.         <span class="phpdocumentor-element__modifiers">
    573. 

  573.                                 </span>
    574. 

  574.     </h4>
    575. 

  575.     <aside class="phpdocumentor-element-found-in">
    576. 

  576.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    577. 

  577.     :
    578. 

  578.     <span class="phpdocumentor-element-found-in__line">34</span>
    579. 

  579. 

  580.     </aside>
    581. 

  581. 

  582.     
    583. 

  583.     
    584. 

  584.     <code class="phpdocumentor-code phpdocumentor-signature ">
    585. 

  585.     <span class="phpdocumentor-signature__visibility">private</span>
    586. 

  586.         <span class="phpdocumentor-signature__type">array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;</span>
    587. 

  587.     <span class="phpdocumentor-signature__name">$possibleCenters</span>
    588. 

  588.     </code>
    589. 

  589. 

  590.     
    591. 

  591.     
    592. 

  592.     
    593. 

  593. 

  594.     
    595. 

  595. 

  596. </article>
    597. 

  597.             </section>
    598. 

  598. 

  599.             <section class="phpdocumentor-methods">
    600. 

  600.         <h3 class="phpdocumentor-elements__header" id="methods">
    601. 

  601.             Methods
    602. 

  602.             <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#methods" class="headerlink"><i class="fas fa-link"></i></a>
    603. 

  603. 

  604.         </h3>
    605. 

  605.                     <article
    606. 

  606.         class="phpdocumentor-element
    607. 

  607.             -method
    608. 

  608.             -public
    609. 

  609.                                                         "
    610. 

  610. >
    611. 

  611.     <h4 class="phpdocumentor-element__name" id="method___construct">
    612. 

  612.         __construct()
    613. 

  613.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method___construct" class="headerlink"><i class="fas fa-link"></i></a>
    614. 

  614. 

  615.     </h4>
    616. 

  616.     <aside class="phpdocumentor-element-found-in">
    617. 

  617.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    618. 

  618.     :
    619. 

  619.     <span class="phpdocumentor-element-found-in__line">42</span>
    620. 

  620. 

  621.     </aside>
    622. 

  622. 

  623.         <p class="phpdocumentor-summary">Creates a finder that will search the image for three finder patterns.</p>
    624. 

  624. 

  625.     <code class="phpdocumentor-code phpdocumentor-signature ">
    626. 

  626.     <span class="phpdocumentor-signature__visibility">public</span>
    627. 

  627.                     <span class="phpdocumentor-signature__name">__construct</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Decoder-BitMatrix.html"><abbr title="\chillerlan\QRCode\Decoder\BitMatrix">BitMatrix</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$matrix</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">mixed</span></code>
    628. 

  628. 

  629.     <div class="phpdocumentor-label-line">
    630. 

  630.         </div>
    631. 

  631.     
    632. 

  632.     
    633. 

  633.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    634. 

  634.     <dl class="phpdocumentor-argument-list">
    635. 

  635.                     <dt class="phpdocumentor-argument-list__entry">
    636. 

  636.                 <span class="phpdocumentor-signature__argument__name">$matrix</span>
    637. 

  637.                 : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Decoder-BitMatrix.html"><abbr title="\chillerlan\QRCode\Decoder\BitMatrix">BitMatrix</abbr></a></span>
    638. 

  638.                             </dt>
    639. 

  639.             <dd class="phpdocumentor-argument-list__definition">
    640. 

  640.                     <section class="phpdocumentor-description"><p>image to search</p>
    641. 

  641. </section>
    642. 

  642. 

  643.             </dd>
    644. 

  644.             </dl>
    645. 

  645. 

  646.     
    647. 

  647. 

  648.     
    649. 

  649. 

  650.     
    651. 

  651. </article>
    652. 

  652.                     <article
    653. 

  653.         class="phpdocumentor-element
    654. 

  654.             -method
    655. 

  655.             -public
    656. 

  656.                                                         "
    657. 

  657. >
    658. 

  658.     <h4 class="phpdocumentor-element__name" id="method_find">
    659. 

  659.         find()
    660. 

  660.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_find" class="headerlink"><i class="fas fa-link"></i></a>
    661. 

  661. 

  662.     </h4>
    663. 

  663.     <aside class="phpdocumentor-element-found-in">
    664. 

  664.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    665. 

  665.     :
    666. 

  666.     <span class="phpdocumentor-element-found-in__line">50</span>
    667. 

  667. 

  668.     </aside>
    669. 

  669. 

  670.     
    671. 

  671.     <code class="phpdocumentor-code phpdocumentor-signature ">
    672. 

  672.     <span class="phpdocumentor-signature__visibility">public</span>
    673. 

  673.                     <span class="phpdocumentor-signature__name">find</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;</span></code>
    674. 

  674. 

  675.     <div class="phpdocumentor-label-line">
    676. 

  676.         </div>
    677. 

  677.     
    678. 

  678.     
    679. 

  679.     
    680. 

  680.     
    681. 

  681. 

  682.     
    683. 

  683. 

  684.             <section>
    685. 

  685.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    686. 

  686.         <span class="phpdocumentor-signature__response_type">array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;</span>
    687. 

  687.             </section>
    688. 

  688. 

  689. </article>
    690. 

  690.                     <article
    691. 

  691.         class="phpdocumentor-element
    692. 

  692.             -method
    693. 

  693.             -private
    694. 

  694.                                                         "
    695. 

  695. >
    696. 

  696.     <h4 class="phpdocumentor-element__name" id="method_centerFromEnd">
    697. 

  697.         centerFromEnd()
    698. 

  698.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_centerFromEnd" class="headerlink"><i class="fas fa-link"></i></a>
    699. 

  699. 

  700.     </h4>
    701. 

  701.     <aside class="phpdocumentor-element-found-in">
    702. 

  702.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    703. 

  703.     :
    704. 

  704.     <span class="phpdocumentor-element-found-in__line">189</span>
    705. 

  705. 

  706.     </aside>
    707. 

  707. 

  708.         <p class="phpdocumentor-summary">Given a count of black/white/black/white/black pixels just seen and an end position,
    709. 

  709. figures the location of the center of this run.</p>
    710. 

  710. 

  711.     <code class="phpdocumentor-code phpdocumentor-signature ">
    712. 

  712.     <span class="phpdocumentor-signature__visibility">private</span>
    713. 

  713.                     <span class="phpdocumentor-signature__name">centerFromEnd</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;&nbsp;</span><span class="phpdocumentor-signature__argument__name">$stateCount</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$end</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">float</span></code>
    714. 

  714. 

  715.     <div class="phpdocumentor-label-line">
    716. 

  716.         </div>
    717. 

  717.     
    718. 

  718.     
    719. 

  719.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    720. 

  720.     <dl class="phpdocumentor-argument-list">
    721. 

  721.                     <dt class="phpdocumentor-argument-list__entry">
    722. 

  722.                 <span class="phpdocumentor-signature__argument__name">$stateCount</span>
    723. 

  723.                 : <span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;</span>
    724. 

  724.                             </dt>
    725. 

  725.             <dd class="phpdocumentor-argument-list__definition">
    726. 

  726.                 
    727. 

  727.             </dd>
    728. 

  728.                     <dt class="phpdocumentor-argument-list__entry">
    729. 

  729.                 <span class="phpdocumentor-signature__argument__name">$end</span>
    730. 

  730.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    731. 

  731.                             </dt>
    732. 

  732.             <dd class="phpdocumentor-argument-list__definition">
    733. 

  733.                 
    734. 

  734.             </dd>
    735. 

  735.             </dl>
    736. 

  736. 

  737.     
    738. 

  738. 

  739.     
    740. 

  740. 

  741.             <section>
    742. 

  742.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    743. 

  743.         <span class="phpdocumentor-signature__response_type">float</span>
    744. 

  744.             </section>
    745. 

  745. 

  746. </article>
    747. 

  747.                     <article
    748. 

  748.         class="phpdocumentor-element
    749. 

  749.             -method
    750. 

  750.             -private
    751. 

  751.                                                         "
    752. 

  752. >
    753. 

  753.     <h4 class="phpdocumentor-element__name" id="method_crossCheckDiagonal">
    754. 

  754.         crossCheckDiagonal()
    755. 

  755.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckDiagonal" class="headerlink"><i class="fas fa-link"></i></a>
    756. 

  756. 

  757.     </h4>
    758. 

  758.     <aside class="phpdocumentor-element-found-in">
    759. 

  759.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    760. 

  760.     :
    761. 

  761.     <span class="phpdocumentor-element-found-in__line">253</span>
    762. 

  762. 

  763.     </aside>
    764. 

  764. 

  765.         <p class="phpdocumentor-summary">After a vertical and horizontal scan finds a potential finder pattern, this method
    766. 

  766. &quot;cross-cross-cross-checks&quot; by scanning down diagonally through the center of the possible
    767. 

  767. finder pattern to see if the same proportion is detected.</p>
    768. 

  768. 

  769.     <code class="phpdocumentor-code phpdocumentor-signature ">
    770. 

  770.     <span class="phpdocumentor-signature__visibility">private</span>
    771. 

  771.                     <span class="phpdocumentor-signature__name">crossCheckDiagonal</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$centerI</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$centerJ</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">bool</span></code>
    772. 

  772. 

  773.     <div class="phpdocumentor-label-line">
    774. 

  774.         </div>
    775. 

  775.     
    776. 

  776.     
    777. 

  777.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    778. 

  778.     <dl class="phpdocumentor-argument-list">
    779. 

  779.                     <dt class="phpdocumentor-argument-list__entry">
    780. 

  780.                 <span class="phpdocumentor-signature__argument__name">$centerI</span>
    781. 

  781.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    782. 

  782.                             </dt>
    783. 

  783.             <dd class="phpdocumentor-argument-list__definition">
    784. 

  784.                     <section class="phpdocumentor-description"><p>row where a finder pattern was detected</p>
    785. 

  785. </section>
    786. 

  786. 

  787.             </dd>
    788. 

  788.                     <dt class="phpdocumentor-argument-list__entry">
    789. 

  789.                 <span class="phpdocumentor-signature__argument__name">$centerJ</span>
    790. 

  790.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    791. 

  791.                             </dt>
    792. 

  792.             <dd class="phpdocumentor-argument-list__definition">
    793. 

  793.                     <section class="phpdocumentor-description"><p>center of the section that appears to cross a finder pattern</p>
    794. 

  794. </section>
    795. 

  795. 

  796.             </dd>
    797. 

  797.             </dl>
    798. 

  798. 

  799.     
    800. 

  800. 

  801.     
    802. 

  802. 

  803.             <section>
    804. 

  804.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    805. 

  805.         <span class="phpdocumentor-signature__response_type">bool</span>
    806. 

  806.                     &mdash;
    807. 

  807.                 <section class="phpdocumentor-description"><p>true if proportions are withing expected limits</p>
    808. 

  808. </section>
    809. 

  809. 

  810.             </section>
    811. 

  811. 

  812. </article>
    813. 

  813.                     <article
    814. 

  814.         class="phpdocumentor-element
    815. 

  815.             -method
    816. 

  816.             -private
    817. 

  817.                                                         "
    818. 

  818. >
    819. 

  819.     <h4 class="phpdocumentor-element__name" id="method_crossCheckHorizontal">
    820. 

  820.         crossCheckHorizontal()
    821. 

  821.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckHorizontal" class="headerlink"><i class="fas fa-link"></i></a>
    822. 

  822. 

  823.     </h4>
    824. 

  824.     <aside class="phpdocumentor-element-found-in">
    825. 

  825.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    826. 

  826.     :
    827. 

  827.     <span class="phpdocumentor-element-found-in__line">420</span>
    828. 

  828. 

  829.     </aside>
    830. 

  830. 

  831.         <p class="phpdocumentor-summary">Like #crossCheckVertical(int, int, int, int), and in fact is basically identical,
    832. 

  832. except it reads horizontally instead of vertically. This is used to cross-cross
    833. 

  833. check a vertical cross-check and locate the real center of the alignment pattern.</p>
    834. 

  834. 

  835.     <code class="phpdocumentor-code phpdocumentor-signature ">
    836. 

  836.     <span class="phpdocumentor-signature__visibility">private</span>
    837. 

  837.                     <span class="phpdocumentor-signature__name">crossCheckHorizontal</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$startJ</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$centerI</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$maxCount</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$originalStateCountTotal</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">float|null</span></code>
    838. 

  838. 

  839.     <div class="phpdocumentor-label-line">
    840. 

  840.         </div>
    841. 

  841.     
    842. 

  842.     
    843. 

  843.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    844. 

  844.     <dl class="phpdocumentor-argument-list">
    845. 

  845.                     <dt class="phpdocumentor-argument-list__entry">
    846. 

  846.                 <span class="phpdocumentor-signature__argument__name">$startJ</span>
    847. 

  847.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    848. 

  848.                             </dt>
    849. 

  849.             <dd class="phpdocumentor-argument-list__definition">
    850. 

  850.                 
    851. 

  851.             </dd>
    852. 

  852.                     <dt class="phpdocumentor-argument-list__entry">
    853. 

  853.                 <span class="phpdocumentor-signature__argument__name">$centerI</span>
    854. 

  854.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    855. 

  855.                             </dt>
    856. 

  856.             <dd class="phpdocumentor-argument-list__definition">
    857. 

  857.                 
    858. 

  858.             </dd>
    859. 

  859.                     <dt class="phpdocumentor-argument-list__entry">
    860. 

  860.                 <span class="phpdocumentor-signature__argument__name">$maxCount</span>
    861. 

  861.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    862. 

  862.                             </dt>
    863. 

  863.             <dd class="phpdocumentor-argument-list__definition">
    864. 

  864.                 
    865. 

  865.             </dd>
    866. 

  866.                     <dt class="phpdocumentor-argument-list__entry">
    867. 

  867.                 <span class="phpdocumentor-signature__argument__name">$originalStateCountTotal</span>
    868. 

  868.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    869. 

  869.                             </dt>
    870. 

  870.             <dd class="phpdocumentor-argument-list__definition">
    871. 

  871.                 
    872. 

  872.             </dd>
    873. 

  873.             </dl>
    874. 

  874. 

  875.     
    876. 

  876.     <h5 class="phpdocumentor-tag-list__heading" id="tags">
    877. 

  877.         Tags
    878. 

  878.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckHorizontal#tags" class="headerlink"><i class="fas fa-link"></i></a>
    879. 

  879. 

  880.     </h5>
    881. 

  881.     <dl class="phpdocumentor-tag-list">
    882. 

  882.                                     <dt class="phpdocumentor-tag-list__entry">
    883. 

  883.                     <span class="phpdocumentor-tag__name">noinspection</span>
    884. 

  884.                 </dt>
    885. 

  885.                 <dd class="phpdocumentor-tag-list__definition">
    886. 

  886.                                                                                 
    887. 

  887.                                                  <section class="phpdocumentor-description"><p>DuplicatedCode</p>
    888. 

  888. </section>
    889. 

  889. 

  890.                                     </dd>
    891. 

  891.                                             </dl>
    892. 

  892. 

  893.     
    894. 

  894. 

  895.             <section>
    896. 

  896.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    897. 

  897.         <span class="phpdocumentor-signature__response_type">float|null</span>
    898. 

  898.             </section>
    899. 

  899. 

  900. </article>
    901. 

  901.                     <article
    902. 

  902.         class="phpdocumentor-element
    903. 

  903.             -method
    904. 

  904.             -private
    905. 

  905.                                                         "
    906. 

  906. >
    907. 

  907.     <h4 class="phpdocumentor-element__name" id="method_crossCheckVertical">
    908. 

  908.         crossCheckVertical()
    909. 

  909.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckVertical" class="headerlink"><i class="fas fa-link"></i></a>
    910. 

  910. 

  911.     </h4>
    912. 

  912.     <aside class="phpdocumentor-element-found-in">
    913. 

  913.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    914. 

  914.     :
    915. 

  915.     <span class="phpdocumentor-element-found-in__line">336</span>
    916. 

  916. 

  917.     </aside>
    918. 

  918. 

  919.         <p class="phpdocumentor-summary">After a horizontal scan finds a potential finder pattern, this method
    920. 

  920. &quot;cross-checks&quot; by scanning down vertically through the center of the possible
    921. 

  921. finder pattern to see if the same proportion is detected.</p>
    922. 

  922. 

  923.     <code class="phpdocumentor-code phpdocumentor-signature ">
    924. 

  924.     <span class="phpdocumentor-signature__visibility">private</span>
    925. 

  925.                     <span class="phpdocumentor-signature__name">crossCheckVertical</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$startI</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$centerJ</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$maxCount</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$originalStateCountTotal</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">float|null</span></code>
    926. 

  926. 

  927.     <div class="phpdocumentor-label-line">
    928. 

  928.         </div>
    929. 

  929.     
    930. 

  930.         <section class="phpdocumentor-description"><p>$startI   row where a finder pattern was detected
    931. 

  931. $centerJ  center of the section that appears to cross a finder pattern
    932. 

  932. $maxCount maximum reasonable number of modules that should be
    933. 

  933. observed in any reading state, based on the results of the horizontal scan
    934. 

  934. $originalStateCountTotal</p>
    935. 

  935. <p>returns vertical center of finder pattern, or null if not found</p>
    936. 

  936. </section>
    937. 

  937. 

  938.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    939. 

  939.     <dl class="phpdocumentor-argument-list">
    940. 

  940.                     <dt class="phpdocumentor-argument-list__entry">
    941. 

  941.                 <span class="phpdocumentor-signature__argument__name">$startI</span>
    942. 

  942.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    943. 

  943.                             </dt>
    944. 

  944.             <dd class="phpdocumentor-argument-list__definition">
    945. 

  945.                 
    946. 

  946.             </dd>
    947. 

  947.                     <dt class="phpdocumentor-argument-list__entry">
    948. 

  948.                 <span class="phpdocumentor-signature__argument__name">$centerJ</span>
    949. 

  949.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    950. 

  950.                             </dt>
    951. 

  951.             <dd class="phpdocumentor-argument-list__definition">
    952. 

  952.                 
    953. 

  953.             </dd>
    954. 

  954.                     <dt class="phpdocumentor-argument-list__entry">
    955. 

  955.                 <span class="phpdocumentor-signature__argument__name">$maxCount</span>
    956. 

  956.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    957. 

  957.                             </dt>
    958. 

  958.             <dd class="phpdocumentor-argument-list__definition">
    959. 

  959.                 
    960. 

  960.             </dd>
    961. 

  961.                     <dt class="phpdocumentor-argument-list__entry">
    962. 

  962.                 <span class="phpdocumentor-signature__argument__name">$originalStateCountTotal</span>
    963. 

  963.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    964. 

  964.                             </dt>
    965. 

  965.             <dd class="phpdocumentor-argument-list__definition">
    966. 

  966.                 
    967. 

  967.             </dd>
    968. 

  968.             </dl>
    969. 

  969. 

  970.     
    971. 

  971.     <h5 class="phpdocumentor-tag-list__heading" id="tags">
    972. 

  972.         Tags
    973. 

  973.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckVertical#tags" class="headerlink"><i class="fas fa-link"></i></a>
    974. 

  974. 

  975.     </h5>
    976. 

  976.     <dl class="phpdocumentor-tag-list">
    977. 

  977.                                     <dt class="phpdocumentor-tag-list__entry">
    978. 

  978.                     <span class="phpdocumentor-tag__name">noinspection</span>
    979. 

  979.                 </dt>
    980. 

  980.                 <dd class="phpdocumentor-tag-list__definition">
    981. 

  981.                                                                                 
    982. 

  982.                                                  <section class="phpdocumentor-description"><p>DuplicatedCode</p>
    983. 

  983. </section>
    984. 

  984. 

  985.                                     </dd>
    986. 

  986.                                             </dl>
    987. 

  987. 

  988.     
    989. 

  989. 

  990.             <section>
    991. 

  991.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    992. 

  992.         <span class="phpdocumentor-signature__response_type">float|null</span>
    993. 

  993.             </section>
    994. 

  994. 

  995. </article>
    996. 

  996.                     <article
    997. 

  997.         class="phpdocumentor-element
    998. 

  998.             -method
    999. 

  999.             -private
    1000. 

  1000.                                                         "
    1001. 

  1001. >
    1002. 

  1002.     <h4 class="phpdocumentor-element__name" id="method_crossProductZ">
    1003. 

  1003.         crossProductZ()
    1004. 

  1004.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossProductZ" class="headerlink"><i class="fas fa-link"></i></a>
    1005. 

  1005. 

  1006.     </h4>
    1007. 

  1007.     <aside class="phpdocumentor-element-found-in">
    1008. 

  1008.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    1009. 

  1009.     :
    1010. 

  1010.     <span class="phpdocumentor-element-found-in__line">766</span>
    1011. 

  1011. 

  1012.     </aside>
    1013. 

  1013. 

  1014.         <p class="phpdocumentor-summary">Returns the z component of the cross product between vectors BC and BA.</p>
    1015. 

  1015. 

  1016.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1017. 

  1017.     <span class="phpdocumentor-signature__visibility">private</span>
    1018. 

  1018.                     <span class="phpdocumentor-signature__name">crossProductZ</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$pointA</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$pointB</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$pointC</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">float</span></code>
    1019. 

  1019. 

  1020.     <div class="phpdocumentor-label-line">
    1021. 

  1021.         </div>
    1022. 

  1022.     
    1023. 

  1023.     
    1024. 

  1024.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    1025. 

  1025.     <dl class="phpdocumentor-argument-list">
    1026. 

  1026.                     <dt class="phpdocumentor-argument-list__entry">
    1027. 

  1027.                 <span class="phpdocumentor-signature__argument__name">$pointA</span>
    1028. 

  1028.                 : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a></span>
    1029. 

  1029.                             </dt>
    1030. 

  1030.             <dd class="phpdocumentor-argument-list__definition">
    1031. 

  1031.                 
    1032. 

  1032.             </dd>
    1033. 

  1033.                     <dt class="phpdocumentor-argument-list__entry">
    1034. 

  1034.                 <span class="phpdocumentor-signature__argument__name">$pointB</span>
    1035. 

  1035.                 : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a></span>
    1036. 

  1036.                             </dt>
    1037. 

  1037.             <dd class="phpdocumentor-argument-list__definition">
    1038. 

  1038.                 
    1039. 

  1039.             </dd>
    1040. 

  1040.                     <dt class="phpdocumentor-argument-list__entry">
    1041. 

  1041.                 <span class="phpdocumentor-signature__argument__name">$pointC</span>
    1042. 

  1042.                 : <span class="phpdocumentor-signature__argument__return-type"><a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a></span>
    1043. 

  1043.                             </dt>
    1044. 

  1044.             <dd class="phpdocumentor-argument-list__definition">
    1045. 

  1045.                 
    1046. 

  1046.             </dd>
    1047. 

  1047.             </dl>
    1048. 

  1048. 

  1049.     
    1050. 

  1050. 

  1051.     
    1052. 

  1052. 

  1053.             <section>
    1054. 

  1054.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1055. 

  1055.         <span class="phpdocumentor-signature__response_type">float</span>
    1056. 

  1056.             </section>
    1057. 

  1057. 

  1058. </article>
    1059. 

  1059.                     <article
    1060. 

  1060.         class="phpdocumentor-element
    1061. 

  1061.             -method
    1062. 

  1062.             -private
    1063. 

  1063.                                                         "
    1064. 

  1064. >
    1065. 

  1065.     <h4 class="phpdocumentor-element__name" id="method_doShiftCounts2">
    1066. 

  1066.         doShiftCounts2()
    1067. 

  1067.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_doShiftCounts2" class="headerlink"><i class="fas fa-link"></i></a>
    1068. 

  1068. 

  1069.     </h4>
    1070. 

  1070.     <aside class="phpdocumentor-element-found-in">
    1071. 

  1071.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    1072. 

  1072.     :
    1073. 

  1073.     <span class="phpdocumentor-element-found-in__line">173</span>
    1074. 

  1074. 

  1075.     </aside>
    1076. 

  1076. 

  1077.     
    1078. 

  1078.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1079. 

  1079.     <span class="phpdocumentor-signature__visibility">private</span>
    1080. 

  1080.                     <span class="phpdocumentor-signature__name">doShiftCounts2</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;&nbsp;</span><span class="phpdocumentor-signature__argument__name">$stateCount</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">array&lt;string|int, int&gt;</span></code>
    1081. 

  1081. 

  1082.     <div class="phpdocumentor-label-line">
    1083. 

  1083.         </div>
    1084. 

  1084.     
    1085. 

  1085.     
    1086. 

  1086.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    1087. 

  1087.     <dl class="phpdocumentor-argument-list">
    1088. 

  1088.                     <dt class="phpdocumentor-argument-list__entry">
    1089. 

  1089.                 <span class="phpdocumentor-signature__argument__name">$stateCount</span>
    1090. 

  1090.                 : <span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;</span>
    1091. 

  1091.                             </dt>
    1092. 

  1092.             <dd class="phpdocumentor-argument-list__definition">
    1093. 

  1093.                 
    1094. 

  1094.             </dd>
    1095. 

  1095.             </dl>
    1096. 

  1096. 

  1097.     
    1098. 

  1098. 

  1099.     
    1100. 

  1100. 

  1101.             <section>
    1102. 

  1102.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1103. 

  1103.         <span class="phpdocumentor-signature__response_type">array&lt;string|int, int&gt;</span>
    1104. 

  1104.             </section>
    1105. 

  1105. 

  1106. </article>
    1107. 

  1107.                     <article
    1108. 

  1108.         class="phpdocumentor-element
    1109. 

  1109.             -method
    1110. 

  1110.             -private
    1111. 

  1111.                                                         "
    1112. 

  1112. >
    1113. 

  1113.     <h4 class="phpdocumentor-element__name" id="method_findRowSkip">
    1114. 

  1114.         findRowSkip()
    1115. 

  1115.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_findRowSkip" class="headerlink"><i class="fas fa-link"></i></a>
    1116. 

  1116. 

  1117.     </h4>
    1118. 

  1118.     <aside class="phpdocumentor-element-found-in">
    1119. 

  1119.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    1120. 

  1120.     :
    1121. 

  1121.     <span class="phpdocumentor-element-found-in__line">556</span>
    1122. 

  1122. 

  1123.     </aside>
    1124. 

  1124. 

  1125.     
    1126. 

  1126.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1127. 

  1127.     <span class="phpdocumentor-signature__visibility">private</span>
    1128. 

  1128.                     <span class="phpdocumentor-signature__name">findRowSkip</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">int</span></code>
    1129. 

  1129. 

  1130.     <div class="phpdocumentor-label-line">
    1131. 

  1131.         </div>
    1132. 

  1132.     
    1133. 

  1133.     
    1134. 

  1134.     
    1135. 

  1135.     
    1136. 

  1136. 

  1137.     
    1138. 

  1138. 

  1139.             <section>
    1140. 

  1140.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1141. 

  1141.         <span class="phpdocumentor-signature__response_type">int</span>
    1142. 

  1142.                     &mdash;
    1143. 

  1143.                 <section class="phpdocumentor-description"><p>number of rows we could safely skip during scanning, based on the first
    1144. 

  1144. two finder patterns that have been located. In some cases their position will
    1145. 

  1145. allow us to infer that the third pattern must lie below a certain point farther
    1146. 

  1146. down in the image.</p>
    1147. 

  1147. </section>
    1148. 

  1148. 

  1149.             </section>
    1150. 

  1150. 

  1151. </article>
    1152. 

  1152.                     <article
    1153. 

  1153.         class="phpdocumentor-element
    1154. 

  1154.             -method
    1155. 

  1155.             -private
    1156. 

  1156.                                                         "
    1157. 

  1157. >
    1158. 

  1158.     <h4 class="phpdocumentor-element__name" id="method_foundPatternCross">
    1159. 

  1159.         foundPatternCross()
    1160. 

  1160.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternCross" class="headerlink"><i class="fas fa-link"></i></a>
    1161. 

  1161. 

  1162.     </h4>
    1163. 

  1163.     <aside class="phpdocumentor-element-found-in">
    1164. 

  1164.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    1165. 

  1165.     :
    1166. 

  1166.     <span class="phpdocumentor-element-found-in__line">196</span>
    1167. 

  1167. 

  1168.     </aside>
    1169. 

  1169. 

  1170.     
    1171. 

  1171.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1172. 

  1172.     <span class="phpdocumentor-signature__visibility">private</span>
    1173. 

  1173.                     <span class="phpdocumentor-signature__name">foundPatternCross</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;&nbsp;</span><span class="phpdocumentor-signature__argument__name">$stateCount</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">bool</span></code>
    1174. 

  1174. 

  1175.     <div class="phpdocumentor-label-line">
    1176. 

  1176.         </div>
    1177. 

  1177.     
    1178. 

  1178.     
    1179. 

  1179.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    1180. 

  1180.     <dl class="phpdocumentor-argument-list">
    1181. 

  1181.                     <dt class="phpdocumentor-argument-list__entry">
    1182. 

  1182.                 <span class="phpdocumentor-signature__argument__name">$stateCount</span>
    1183. 

  1183.                 : <span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;</span>
    1184. 

  1184.                             </dt>
    1185. 

  1185.             <dd class="phpdocumentor-argument-list__definition">
    1186. 

  1186.                 
    1187. 

  1187.             </dd>
    1188. 

  1188.             </dl>
    1189. 

  1189. 

  1190.     
    1191. 

  1191. 

  1192.     
    1193. 

  1193. 

  1194.             <section>
    1195. 

  1195.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1196. 

  1196.         <span class="phpdocumentor-signature__response_type">bool</span>
    1197. 

  1197.             </section>
    1198. 

  1198. 

  1199. </article>
    1200. 

  1200.                     <article
    1201. 

  1201.         class="phpdocumentor-element
    1202. 

  1202.             -method
    1203. 

  1203.             -private
    1204. 

  1204.                                                         "
    1205. 

  1205. >
    1206. 

  1206.     <h4 class="phpdocumentor-element__name" id="method_foundPatternDiagonal">
    1207. 

  1207.         foundPatternDiagonal()
    1208. 

  1208.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternDiagonal" class="headerlink"><i class="fas fa-link"></i></a>
    1209. 

  1209. 

  1210.     </h4>
    1211. 

  1211.     <aside class="phpdocumentor-element-found-in">
    1212. 

  1212.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    1213. 

  1213.     :
    1214. 

  1214.     <span class="phpdocumentor-element-found-in__line">204</span>
    1215. 

  1215. 

  1216.     </aside>
    1217. 

  1217. 

  1218.     
    1219. 

  1219.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1220. 

  1220.     <span class="phpdocumentor-signature__visibility">private</span>
    1221. 

  1221.                     <span class="phpdocumentor-signature__name">foundPatternDiagonal</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;&nbsp;</span><span class="phpdocumentor-signature__argument__name">$stateCount</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">bool</span></code>
    1222. 

  1222. 

  1223.     <div class="phpdocumentor-label-line">
    1224. 

  1224.         </div>
    1225. 

  1225.     
    1226. 

  1226.     
    1227. 

  1227.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    1228. 

  1228.     <dl class="phpdocumentor-argument-list">
    1229. 

  1229.                     <dt class="phpdocumentor-argument-list__entry">
    1230. 

  1230.                 <span class="phpdocumentor-signature__argument__name">$stateCount</span>
    1231. 

  1231.                 : <span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;</span>
    1232. 

  1232.                             </dt>
    1233. 

  1233.             <dd class="phpdocumentor-argument-list__definition">
    1234. 

  1234.                 
    1235. 

  1235.             </dd>
    1236. 

  1236.             </dl>
    1237. 

  1237. 

  1238.     
    1239. 

  1239. 

  1240.     
    1241. 

  1241. 

  1242.             <section>
    1243. 

  1243.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1244. 

  1244.         <span class="phpdocumentor-signature__response_type">bool</span>
    1245. 

  1245.             </section>
    1246. 

  1246. 

  1247. </article>
    1248. 

  1248.                     <article
    1249. 

  1249.         class="phpdocumentor-element
    1250. 

  1250.             -method
    1251. 

  1251.             -private
    1252. 

  1252.                                                         "
    1253. 

  1253. >
    1254. 

  1254.     <h4 class="phpdocumentor-element__name" id="method_foundPatternVariance">
    1255. 

  1255.         foundPatternVariance()
    1256. 

  1256.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternVariance" class="headerlink"><i class="fas fa-link"></i></a>
    1257. 

  1257. 

  1258.     </h4>
    1259. 

  1259.     <aside class="phpdocumentor-element-found-in">
    1260. 

  1260.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    1261. 

  1261.     :
    1262. 

  1262.     <span class="phpdocumentor-element-found-in__line">215</span>
    1263. 

  1263. 

  1264.     </aside>
    1265. 

  1265. 

  1266.     
    1267. 

  1267.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1268. 

  1268.     <span class="phpdocumentor-signature__visibility">private</span>
    1269. 

  1269.                     <span class="phpdocumentor-signature__name">foundPatternVariance</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;&nbsp;</span><span class="phpdocumentor-signature__argument__name">$stateCount</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">float&nbsp;</span><span class="phpdocumentor-signature__argument__name">$variance</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">bool</span></code>
    1270. 

  1270. 

  1271.     <div class="phpdocumentor-label-line">
    1272. 

  1272.         </div>
    1273. 

  1273.     
    1274. 

  1274.     
    1275. 

  1275.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    1276. 

  1276.     <dl class="phpdocumentor-argument-list">
    1277. 

  1277.                     <dt class="phpdocumentor-argument-list__entry">
    1278. 

  1278.                 <span class="phpdocumentor-signature__argument__name">$stateCount</span>
    1279. 

  1279.                 : <span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;</span>
    1280. 

  1280.                             </dt>
    1281. 

  1281.             <dd class="phpdocumentor-argument-list__definition">
    1282. 

  1282.                     <section class="phpdocumentor-description"><p>count of black/white/black/white/black pixels just read</p>
    1283. 

  1283. </section>
    1284. 

  1284. 

  1285.             </dd>
    1286. 

  1286.                     <dt class="phpdocumentor-argument-list__entry">
    1287. 

  1287.                 <span class="phpdocumentor-signature__argument__name">$variance</span>
    1288. 

  1288.                 : <span class="phpdocumentor-signature__argument__return-type">float</span>
    1289. 

  1289.                             </dt>
    1290. 

  1290.             <dd class="phpdocumentor-argument-list__definition">
    1291. 

  1291.                 
    1292. 

  1292.             </dd>
    1293. 

  1293.             </dl>
    1294. 

  1294. 

  1295.     
    1296. 

  1296. 

  1297.     
    1298. 

  1298. 

  1299.             <section>
    1300. 

  1300.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1301. 

  1301.         <span class="phpdocumentor-signature__response_type">bool</span>
    1302. 

  1302.                     &mdash;
    1303. 

  1303.                 <section class="phpdocumentor-description"><p>true if the proportions of the counts is close enough to the 1/1/3/1/1 ratios
    1304. 

  1304. used by finder patterns to be considered a match</p>
    1305. 

  1305. </section>
    1306. 

  1306. 

  1307.             </section>
    1308. 

  1308. 

  1309. </article>
    1310. 

  1310.                     <article
    1311. 

  1311.         class="phpdocumentor-element
    1312. 

  1312.             -method
    1313. 

  1313.             -private
    1314. 

  1314.                                                         "
    1315. 

  1315. >
    1316. 

  1316.     <h4 class="phpdocumentor-element__name" id="method_getCrossCheckStateCount">
    1317. 

  1317.         getCrossCheckStateCount()
    1318. 

  1318.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_getCrossCheckStateCount" class="headerlink"><i class="fas fa-link"></i></a>
    1319. 

  1319. 

  1320.     </h4>
    1321. 

  1321.     <aside class="phpdocumentor-element-found-in">
    1322. 

  1322.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    1323. 

  1323.     :
    1324. 

  1324.     <span class="phpdocumentor-element-found-in__line">164</span>
    1325. 

  1325. 

  1326.     </aside>
    1327. 

  1327. 

  1328.     
    1329. 

  1329.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1330. 

  1330.     <span class="phpdocumentor-signature__visibility">private</span>
    1331. 

  1331.                     <span class="phpdocumentor-signature__name">getCrossCheckStateCount</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">array&lt;string|int, int&gt;</span></code>
    1332. 

  1332. 

  1333.     <div class="phpdocumentor-label-line">
    1334. 

  1334.         </div>
    1335. 

  1335.     
    1336. 

  1336.     
    1337. 

  1337.     
    1338. 

  1338.     
    1339. 

  1339. 

  1340.     
    1341. 

  1341. 

  1342.             <section>
    1343. 

  1343.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1344. 

  1344.         <span class="phpdocumentor-signature__response_type">array&lt;string|int, int&gt;</span>
    1345. 

  1345.             </section>
    1346. 

  1346. 

  1347. </article>
    1348. 

  1348.                     <article
    1349. 

  1349.         class="phpdocumentor-element
    1350. 

  1350.             -method
    1351. 

  1351.             -private
    1352. 

  1352.                                                         "
    1353. 

  1353. >
    1354. 

  1354.     <h4 class="phpdocumentor-element__name" id="method_handlePossibleCenter">
    1355. 

  1355.         handlePossibleCenter()
    1356. 

  1356.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_handlePossibleCenter" class="headerlink"><i class="fas fa-link"></i></a>
    1357. 

  1357. 

  1358.     </h4>
    1359. 

  1359.     <aside class="phpdocumentor-element-found-in">
    1360. 

  1360.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    1361. 

  1361.     :
    1362. 

  1362.     <span class="phpdocumentor-element-found-in__line">513</span>
    1363. 

  1363. 

  1364.     </aside>
    1365. 

  1365. 

  1366.         <p class="phpdocumentor-summary">This is called when a horizontal scan finds a possible alignment pattern. It will
    1367. 

  1367. cross-check with a vertical scan, and if successful, will, ah, cross-cross-check
    1368. 

  1368. with another horizontal scan. This is needed primarily to locate the real horizontal
    1369. 

  1369. center of the pattern in cases of extreme skew.</p>
    1370. 

  1370. 

  1371.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1372. 

  1372.     <span class="phpdocumentor-signature__visibility">private</span>
    1373. 

  1373.                     <span class="phpdocumentor-signature__name">handlePossibleCenter</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;&nbsp;</span><span class="phpdocumentor-signature__argument__name">$stateCount</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$i</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$j</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">bool</span></code>
    1374. 

  1374. 

  1375.     <div class="phpdocumentor-label-line">
    1376. 

  1376.         </div>
    1377. 

  1377.     
    1378. 

  1378.         <section class="phpdocumentor-description"><p>And then we cross-cross-cross check with another diagonal scan.</p>
    1379. 

  1379. <p>If that succeeds the finder pattern location is added to a list that tracks
    1380. 

  1380. the number of times each location has been nearly-matched as a finder pattern.
    1381. 

  1381. Each additional find is more evidence that the location is in fact a finder
    1382. 

  1382. pattern center</p>
    1383. 

  1383. </section>
    1384. 

  1384. 

  1385.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    1386. 

  1386.     <dl class="phpdocumentor-argument-list">
    1387. 

  1387.                     <dt class="phpdocumentor-argument-list__entry">
    1388. 

  1388.                 <span class="phpdocumentor-signature__argument__name">$stateCount</span>
    1389. 

  1389.                 : <span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;</span>
    1390. 

  1390.                             </dt>
    1391. 

  1391.             <dd class="phpdocumentor-argument-list__definition">
    1392. 

  1392.                     <section class="phpdocumentor-description"><p>reading state module counts from horizontal scan</p>
    1393. 

  1393. </section>
    1394. 

  1394. 

  1395.             </dd>
    1396. 

  1396.                     <dt class="phpdocumentor-argument-list__entry">
    1397. 

  1397.                 <span class="phpdocumentor-signature__argument__name">$i</span>
    1398. 

  1398.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    1399. 

  1399.                             </dt>
    1400. 

  1400.             <dd class="phpdocumentor-argument-list__definition">
    1401. 

  1401.                     <section class="phpdocumentor-description"><p>row where finder pattern may be found</p>
    1402. 

  1402. </section>
    1403. 

  1403. 

  1404.             </dd>
    1405. 

  1405.                     <dt class="phpdocumentor-argument-list__entry">
    1406. 

  1406.                 <span class="phpdocumentor-signature__argument__name">$j</span>
    1407. 

  1407.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    1408. 

  1408.                             </dt>
    1409. 

  1409.             <dd class="phpdocumentor-argument-list__definition">
    1410. 

  1410.                     <section class="phpdocumentor-description"><p>end of possible finder pattern in row</p>
    1411. 

  1411. </section>
    1412. 

  1412. 

  1413.             </dd>
    1414. 

  1414.             </dl>
    1415. 

  1415. 

  1416.     
    1417. 

  1417. 

  1418.     
    1419. 

  1419. 

  1420.             <section>
    1421. 

  1421.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1422. 

  1422.         <span class="phpdocumentor-signature__response_type">bool</span>
    1423. 

  1423.                     &mdash;
    1424. 

  1424.                 <section class="phpdocumentor-description"><p>if a finder pattern candidate was found this time</p>
    1425. 

  1425. </section>
    1426. 

  1426. 

  1427.             </section>
    1428. 

  1428. 

  1429. </article>
    1430. 

  1430.                     <article
    1431. 

  1431.         class="phpdocumentor-element
    1432. 

  1432.             -method
    1433. 

  1433.             -private
    1434. 

  1434.                                                         "
    1435. 

  1435. >
    1436. 

  1436.     <h4 class="phpdocumentor-element__name" id="method_haveMultiplyConfirmedCenters">
    1437. 

  1437.         haveMultiplyConfirmedCenters()
    1438. 

  1438.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_haveMultiplyConfirmedCenters" class="headerlink"><i class="fas fa-link"></i></a>
    1439. 

  1439. 

  1440.     </h4>
    1441. 

  1441.     <aside class="phpdocumentor-element-found-in">
    1442. 

  1442.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    1443. 

  1443.     :
    1444. 

  1444.     <span class="phpdocumentor-element-found-in__line">594</span>
    1445. 

  1445. 

  1446.     </aside>
    1447. 

  1447. 

  1448.     
    1449. 

  1449.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1450. 

  1450.     <span class="phpdocumentor-signature__visibility">private</span>
    1451. 

  1451.                     <span class="phpdocumentor-signature__name">haveMultiplyConfirmedCenters</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">bool</span></code>
    1452. 

  1452. 

  1453.     <div class="phpdocumentor-label-line">
    1454. 

  1454.         </div>
    1455. 

  1455.     
    1456. 

  1456.     
    1457. 

  1457.     
    1458. 

  1458.     
    1459. 

  1459. 

  1460.     
    1461. 

  1461. 

  1462.             <section>
    1463. 

  1463.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1464. 

  1464.         <span class="phpdocumentor-signature__response_type">bool</span>
    1465. 

  1465.                     &mdash;
    1466. 

  1466.                 <section class="phpdocumentor-description"><p>true if we have found at least 3 finder patterns that have been detected
    1467. 

  1467. at least #CENTER_QUORUM times each, and, the estimated module size of the
    1468. 

  1468. candidates is &quot;pretty similar&quot;</p>
    1469. 

  1469. </section>
    1470. 

  1470. 

  1471.             </section>
    1472. 

  1472. 

  1473. </article>
    1474. 

  1474.                     <article
    1475. 

  1475.         class="phpdocumentor-element
    1476. 

  1476.             -method
    1477. 

  1477.             -private
    1478. 

  1478.                                                         "
    1479. 

  1479. >
    1480. 

  1480.     <h4 class="phpdocumentor-element__name" id="method_orderBestPatterns">
    1481. 

  1481.         orderBestPatterns()
    1482. 

  1482.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_orderBestPatterns" class="headerlink"><i class="fas fa-link"></i></a>
    1483. 

  1483. 

  1484.     </h4>
    1485. 

  1485.     <aside class="phpdocumentor-element-found-in">
    1486. 

  1486.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    1487. 

  1487.     :
    1488. 

  1488.     <span class="phpdocumentor-element-found-in__line">732</span>
    1489. 

  1489. 

  1490.     </aside>
    1491. 

  1491. 

  1492.         <p class="phpdocumentor-summary">Orders an array of three ResultPoints in an order [A,B,C] such that AB is less than AC
    1493. 

  1493. and BC is less than AC, and the angle between BC and BA is less than 180 degrees.</p>
    1494. 

  1494. 

  1495.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1496. 

  1496.     <span class="phpdocumentor-signature__visibility">private</span>
    1497. 

  1497.                     <span class="phpdocumentor-signature__name">orderBestPatterns</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;&nbsp;</span><span class="phpdocumentor-signature__argument__name">$patterns</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;</span></code>
    1498. 

  1498. 

  1499.     <div class="phpdocumentor-label-line">
    1500. 

  1500.         </div>
    1501. 

  1501.     
    1502. 

  1502.     
    1503. 

  1503.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    1504. 

  1504.     <dl class="phpdocumentor-argument-list">
    1505. 

  1505.                     <dt class="phpdocumentor-argument-list__entry">
    1506. 

  1506.                 <span class="phpdocumentor-signature__argument__name">$patterns</span>
    1507. 

  1507.                 : <span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;</span>
    1508. 

  1508.                             </dt>
    1509. 

  1509.             <dd class="phpdocumentor-argument-list__definition">
    1510. 

  1510.                     <section class="phpdocumentor-description"><p>array of three FinderPattern to order</p>
    1511. 

  1511. </section>
    1512. 

  1512. 

  1513.             </dd>
    1514. 

  1514.             </dl>
    1515. 

  1515. 

  1516.     
    1517. 

  1517. 

  1518.     
    1519. 

  1519. 

  1520.             <section>
    1521. 

  1521.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1522. 

  1522.         <span class="phpdocumentor-signature__response_type">array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;</span>
    1523. 

  1523.             </section>
    1524. 

  1524. 

  1525. </article>
    1526. 

  1526.                     <article
    1527. 

  1527.         class="phpdocumentor-element
    1528. 

  1528.             -method
    1529. 

  1529.             -private
    1530. 

  1530.                                                         "
    1531. 

  1531. >
    1532. 

  1532.     <h4 class="phpdocumentor-element__name" id="method_selectBestPatterns">
    1533. 

  1533.         selectBestPatterns()
    1534. 

  1534.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_selectBestPatterns" class="headerlink"><i class="fas fa-link"></i></a>
    1535. 

  1535. 

  1536.     </h4>
    1537. 

  1537.     <aside class="phpdocumentor-element-found-in">
    1538. 

  1538.     <abbr class="phpdocumentor-element-found-in__file" title="src/Detector/FinderPatternFinder.php"><a href="files/src-detector-finderpatternfinder.html"><abbr title="src/Detector/FinderPatternFinder.php">FinderPatternFinder.php</abbr></a></abbr>
    1539. 

  1539.     :
    1540. 

  1540.     <span class="phpdocumentor-element-found-in__line">629</span>
    1541. 

  1541. 

  1542.     </aside>
    1543. 

  1543. 

  1544.     
    1545. 

  1545.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1546. 

  1546.     <span class="phpdocumentor-signature__visibility">private</span>
    1547. 

  1547.                     <span class="phpdocumentor-signature__name">selectBestPatterns</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;</span></code>
    1548. 

  1548. 

  1549.     <div class="phpdocumentor-label-line">
    1550. 

  1550.         </div>
    1551. 

  1551.     
    1552. 

  1552.     
    1553. 

  1553.     
    1554. 

  1554.     
    1555. 

  1555.     <h5 class="phpdocumentor-tag-list__heading" id="tags">
    1556. 

  1556.         Tags
    1557. 

  1557.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_selectBestPatterns#tags" class="headerlink"><i class="fas fa-link"></i></a>
    1558. 

  1558. 

  1559.     </h5>
    1560. 

  1560.     <dl class="phpdocumentor-tag-list">
    1561. 

  1561.                                     <dt class="phpdocumentor-tag-list__entry">
    1562. 

  1562.                     <span class="phpdocumentor-tag__name">throws</span>
    1563. 

  1563.                 </dt>
    1564. 

  1564.                 <dd class="phpdocumentor-tag-list__definition">
    1565. 

  1565.                                                                 <span class="phpdocumentor-tag-link"><a href="classes/chillerlan-QRCode-Detector-QRCodeDetectorException.html"><abbr title="\chillerlan\QRCode\Detector\QRCodeDetectorException">QRCodeDetectorException</abbr></a></span>
    1566. 

  1566.                                                             
    1567. 

  1567.                                                  <section class="phpdocumentor-description"><p>if 3 such finder patterns do not exist</p>
    1568. 

  1568. </section>
    1569. 

  1569. 

  1570.                                     </dd>
    1571. 

  1571.                                             </dl>
    1572. 

  1572. 

  1573.     
    1574. 

  1574. 

  1575.             <section>
    1576. 

  1576.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1577. 

  1577.         <span class="phpdocumentor-signature__response_type">array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;</span>
    1578. 

  1578.                     &mdash;
    1579. 

  1579.                 <section class="phpdocumentor-description"><p>the 3 best FinderPatterns from our list of candidates. The &quot;best&quot; are
    1580. 

  1580. those that have been detected at least #CENTER_QUORUM times, and whose module
    1581. 

  1581. size differs from the average among those patterns the least</p>
    1582. 

  1582. </section>
    1583. 

  1583. 

  1584.             </section>
    1585. 

  1585. 

  1586. </article>
    1587. 

  1587.             </section>
    1588. 

  1588. 

  1589.         <div class="phpdocumentor-modal" id="source-view">
    1590. 

  1590.     <div class="phpdocumentor-modal-bg" data-exit-button></div>
    1591. 

  1591.     <div class="phpdocumentor-modal-container">
    1592. 

  1592.         <div class="phpdocumentor-modal-content">
    1593. 

  1593.             <pre style="max-height: 500px; overflow-y: scroll" data-src="files/src/Detector/FinderPatternFinder.php.txt" class="language-php line-numbers linkable-line-numbers"></pre>
    1594. 

  1594.         </div>
    1595. 

  1595.         <button data-exit-button class="phpdocumentor-modal__close">&times;</button>
    1596. 

  1596.     </div>
    1597. 

  1597. </div>
    1598. 

  1598. 

  1599.     <script type="text/javascript">
    1600. 

  1600.         (function () {
    1601. 

  1601.             function loadExternalCodeSnippet(el, url, line) {
    1602. 

  1602.                 Array.prototype.slice.call(el.querySelectorAll('pre[data-src]')).forEach((pre) => {
    1603. 

  1603.                     const src = url || pre.getAttribute('data-src').replace(/\\/g, '/');
    1604. 

  1604.                     const language = 'php';
    1605. 

  1605. 

  1606.                     const code = document.createElement('code');
    1607. 

  1607.                     code.className = 'language-' + language;
    1608. 

  1608.                     pre.textContent = '';
    1609. 

  1609.                     pre.setAttribute('data-line', line)
    1610. 

  1610.                     code.textContent = 'Loading…';
    1611. 

  1611.                     pre.appendChild(code);
    1612. 

  1612. 

  1613.                     var xhr = new XMLHttpRequest();
    1614. 

  1614. 

  1615.                     xhr.open('GET', src, true);
    1616. 

  1616. 

  1617.                     xhr.onreadystatechange = function () {
    1618. 

  1618.                         if (xhr.readyState !== 4) {
    1619. 

  1619.                             return;
    1620. 

  1620.                         }
    1621. 

  1621. 

  1622.                         if (xhr.status < 400 && xhr.responseText) {
    1623. 

  1623.                             code.textContent = xhr.responseText;
    1624. 

  1624.                             Prism.highlightElement(code);
    1625. 

  1625.                             return;
    1626. 

  1626.                         }
    1627. 

  1627. 

  1628.                         if (xhr.status === 404) {
    1629. 

  1629.                             code.textContent = '✖ Error: File could not be found';
    1630. 

  1630.                             return;
    1631. 

  1631.                         }
    1632. 

  1632. 

  1633.                         if (xhr.status >= 400) {
    1634. 

  1634.                             code.textContent = '✖ Error ' + xhr.status + ' while fetching file: ' + xhr.statusText;
    1635. 

  1635.                             return;
    1636. 

  1636.                         }
    1637. 

  1637. 

  1638.                         code.textContent = '✖ Error: An unknown error occurred';
    1639. 

  1639.                     };
    1640. 

  1640. 

  1641.                     xhr.send(null);
    1642. 

  1642.                 });
    1643. 

  1643.             }
    1644. 

  1644. 

  1645.             const modalButtons = document.querySelectorAll("[data-modal]");
    1646. 

  1646.             const openedAsLocalFile = window.location.protocol === 'file:';
    1647. 

  1647.             if (modalButtons.length > 0 && openedAsLocalFile) {
    1648. 

  1648.                 console.warn(
    1649. 

  1649.                     'Viewing the source code is unavailable because you are opening this page from the file:// scheme; ' +
    1650. 

  1650.                     'browsers block XHR requests when a page is opened this way'
    1651. 

  1651.                 );
    1652. 

  1652.             }
    1653. 

  1653. 

  1654.             modalButtons.forEach(function (trigger) {
    1655. 

  1655.                 if (openedAsLocalFile) {
    1656. 

  1656.                     trigger.setAttribute("hidden", "hidden");
    1657. 

  1657.                 }
    1658. 

  1658. 

  1659.                 trigger.addEventListener("click", function (event) {
    1660. 

  1660.                     event.preventDefault();
    1661. 

  1661.                     const modal = document.getElementById(trigger.dataset.modal);
    1662. 

  1662.                     if (!modal) {
    1663. 

  1663.                         console.error(`Modal with id "${trigger.dataset.modal}" could not be found`);
    1664. 

  1664.                         return;
    1665. 

  1665.                     }
    1666. 

  1666.                     modal.classList.add("phpdocumentor-modal__open");
    1667. 

  1667. 

  1668.                     loadExternalCodeSnippet(modal, trigger.dataset.src || null, trigger.dataset.line)
    1669. 

  1669.                     const exits = modal.querySelectorAll("[data-exit-button]");
    1670. 

  1670.                     exits.forEach(function (exit) {
    1671. 

  1671.                         exit.addEventListener("click", function (event) {
    1672. 

  1672.                             event.preventDefault();
    1673. 

  1673.                             modal.classList.remove("phpdocumentor-modal__open");
    1674. 

  1674.                         });
    1675. 

  1675.                     });
    1676. 

  1676.                 });
    1677. 

  1677.             });
    1678. 

  1678.         })();
    1679. 

  1679.     </script>
    1680. 

  1680. 

  1681.     </article>
    1682. 

  1682.                                 </section>
    1683. 

  1683.                 <section class="phpdocumentor-on-this-page__sidebar">
    1684. 

  1684.                                 
    1685. 

  1685.     <section class="phpdocumentor-on-this-page__content">
    1686. 

  1686.         <strong class="phpdocumentor-on-this-page__title">On this page</strong>
    1687. 

  1687. 

  1688.         <ul class="phpdocumentor-list -clean">
    1689. 

  1689.             <li class="phpdocumentor-on-this-page-section__title">Table Of Contents</li>
    1690. 

  1690.             <li>
    1691. 

  1691.                 <ul class="phpdocumentor-list -clean">
    1692. 

  1692.                                         <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#toc-constants">Constants</a></li>
    1693. 

  1693.                                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#toc-properties">Properties</a></li>
    1694. 

  1694.                                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#toc-methods">Methods</a></li>
    1695. 

  1695.                                     </ul>
    1696. 

  1696.             </li>
    1697. 

  1697.                             <li class="phpdocumentor-on-this-page-section__title">Constants</li>
    1698. 

  1698.                 <li>
    1699. 

  1699.                     <ul class="phpdocumentor-list -clean">
    1700. 

  1700.                                                     <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_CENTER_QUORUM">CENTER_QUORUM</a></li>
    1701. 

  1701.                                                     <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_MAX_MODULES">MAX_MODULES</a></li>
    1702. 

  1702.                                                     <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_MIN_SKIP">MIN_SKIP</a></li>
    1703. 

  1703.                                             </ul>
    1704. 

  1704.                 </li>
    1705. 

  1705.             
    1706. 

  1706.                             <li class="phpdocumentor-on-this-page-section__title">Properties</li>
    1707. 

  1707.                 <li>
    1708. 

  1708.                     <ul class="phpdocumentor-list -clean">
    1709. 

  1709.                                                     <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_hasSkipped">$hasSkipped</a></li>
    1710. 

  1710.                                                     <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_matrix">$matrix</a></li>
    1711. 

  1711.                                                     <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_possibleCenters">$possibleCenters</a></li>
    1712. 

  1712.                                             </ul>
    1713. 

  1713.                 </li>
    1714. 

  1714.             
    1715. 

  1715.                         <li class="phpdocumentor-on-this-page-section__title">Methods</li>
    1716. 

  1716.             <li>
    1717. 

  1717.                 <ul class="phpdocumentor-list -clean">
    1718. 

  1718.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method___construct">__construct()</a></li>
    1719. 

  1719.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_find">find()</a></li>
    1720. 

  1720.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_centerFromEnd">centerFromEnd()</a></li>
    1721. 

  1721.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckDiagonal">crossCheckDiagonal()</a></li>
    1722. 

  1722.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckHorizontal">crossCheckHorizontal()</a></li>
    1723. 

  1723.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckVertical">crossCheckVertical()</a></li>
    1724. 

  1724.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossProductZ">crossProductZ()</a></li>
    1725. 

  1725.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_doShiftCounts2">doShiftCounts2()</a></li>
    1726. 

  1726.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_findRowSkip">findRowSkip()</a></li>
    1727. 

  1727.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternCross">foundPatternCross()</a></li>
    1728. 

  1728.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternDiagonal">foundPatternDiagonal()</a></li>
    1729. 

  1729.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternVariance">foundPatternVariance()</a></li>
    1730. 

  1730.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_getCrossCheckStateCount">getCrossCheckStateCount()</a></li>
    1731. 

  1731.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_handlePossibleCenter">handlePossibleCenter()</a></li>
    1732. 

  1732.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_haveMultiplyConfirmedCenters">haveMultiplyConfirmedCenters()</a></li>
    1733. 

  1733.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_orderBestPatterns">orderBestPatterns()</a></li>
    1734. 

  1734.                                             <li class=""><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_selectBestPatterns">selectBestPatterns()</a></li>
    1735. 

  1735.                                     </ul>
    1736. 

  1736.             </li>
    1737. 

  1737.                     </ul>
    1738. 

  1738.     </section>
    1739. 

  1739. 

  1740.                 </section>
    1741. 

  1741.                             </div>
    1742. 

  1742.             <section data-search-results class="phpdocumentor-search-results phpdocumentor-search-results--hidden">
    1743. 

  1743.     <section class="phpdocumentor-search-results__dialog">
    1744. 

  1744.         <header class="phpdocumentor-search-results__header">
    1745. 

  1745.             <h2 class="phpdocumentor-search-results__title">Search results</h2>
    1746. 

  1746.             <button class="phpdocumentor-search-results__close"><i class="fas fa-times"></i></button>
    1747. 

  1747.         </header>
    1748. 

  1748.         <section class="phpdocumentor-search-results__body">
    1749. 

  1749.             <ul class="phpdocumentor-search-results__entries"></ul>
    1750. 

  1750.         </section>
    1751. 

  1751.     </section>
    1752. 

  1752. </section>
    1753. 

  1753.         </div>
    1754. 

  1754.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#top" class="phpdocumentor-back-to-top"><i class="fas fa-chevron-circle-up"></i></a>
    1755. 

  1755. 

  1756.     </main>
    1757. 

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  1758.     <script>
    1759. 

  1759.         cssVars({});
    1760. 

  1760.     </script>
    1761. 

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    1765. 

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    1766. 

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    1767.