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chillerlan-QRCode-Detector-FinderPatternFinder.html

chillerlan-QRCode-Detector-FinderPatternFinder.html 87 KB
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  45.     <ul class="phpdocumentor-topnav__menu">
    46. 

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

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

  48.                     <span>
    49. 

  49.                                                                         User Manual
    50. 

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    51. 

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    52. 

  52.             </li>
    53. 

  53.                                 <li class="phpdocumentor-topnav__menu-item -social">
    54. 

  54.                 <a href="https://github.com/chillerlan/php-qrcode">
    55. 

  55.                     <span>
    56. 

  56.                                                                         <i class="fab fa-github"></i>
    57. 

  57.                                                 
    58. 

  58.                     </span>
    59. 

  59.                 </a>
    60. 

  60.             </li>
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    69. 

  69.     Menu
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    72. 

  72.                     <section class="phpdocumentor-sidebar__category">
    73. 

  73.             <h2 class="phpdocumentor-sidebar__category-header">Namespaces</h2>
    74. 

  74.                                     <h4 class="phpdocumentor-sidebar__root-namespace">
    75. 

  75.     <a href="namespaces/chillerlan.html" class="">chillerlan</a>
    76. 

  76. </h4>
    77. 

  77.     <ul class="phpdocumentor-list">
    78. 

  78.                     <li>
    79. 

  79.                 <a href="namespaces/chillerlan-qrcode.html" class="">QRCode</a>
    80. 

  80.                 
    81. 

  81.             </li>
    82. 

  82.                     <li>
    83. 

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

  84.                 
    85. 

  85.             </li>
    86. 

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    87. 

  87. 

  88.                                     <h4 class="phpdocumentor-sidebar__root-namespace">
    89. 

  89.     <a href="namespaces/output.html" class="">Output</a>
    90. 

  90. </h4>
    91. 

  91. 

  92.                         </section>
    93. 

  93.                 <section class="phpdocumentor-sidebar__category">
    94. 

  94.             <h2 class="phpdocumentor-sidebar__category-header">Packages</h2>
    95. 

  95.                                     <h4 class="phpdocumentor-sidebar__root-namespace">
    96. 

  96.     <a href="packages/Application.html" class="">Application</a>
    97. 

  97. </h4>
    98. 

  98. 

  99.                         </section>
    100. 

  100.             
    101. 

  101.     <section class="phpdocumentor-sidebar__category">
    102. 

  102.         <h2 class="phpdocumentor-sidebar__category-header">Reports</h2>
    103. 

  103.                 <h3 class="phpdocumentor-sidebar__root-package"><a href="reports/deprecated.html">Deprecated</a></h3>
    104. 

  104.         <h3 class="phpdocumentor-sidebar__root-package"><a href="reports/errors.html">Errors</a></h3>
    105. 

  105.         <h3 class="phpdocumentor-sidebar__root-package"><a href="reports/markers.html">Markers</a></h3>
    106. 

  106.     </section>
    107. 

  107. 

  108.     <section class="phpdocumentor-sidebar__category">
    109. 

  109.         <h2 class="phpdocumentor-sidebar__category-header">Indices</h2>
    110. 

  110.         <h3 class="phpdocumentor-sidebar__root-package"><a href="indices/files.html">Files</a></h3>
    111. 

  111.     </section>
    112. 

  112. </aside>
    113. 

  113. 

  114.             <div class="phpdocumentor-column -nine phpdocumentor-content">
    115. 

  115.                                 <section>
    116. 

  116.                                         <ul class="phpdocumentor-breadcrumbs">
    117. 

  117.             <li class="phpdocumentor-breadcrumb"><a href="namespaces/chillerlan.html">chillerlan</a></li>
    118. 

  118.             <li class="phpdocumentor-breadcrumb"><a href="namespaces/chillerlan-qrcode.html">QRCode</a></li>
    119. 

  119.             <li class="phpdocumentor-breadcrumb"><a href="namespaces/chillerlan-qrcode-detector.html">Detector</a></li>
    120. 

  120.     </ul>
    121. 

  121. 

  122.     <article class="phpdocumentor-element -class">
    123. 

  123.         <h2 class="phpdocumentor-content__title">
    124. 

  124.     FinderPatternFinder
    125. 

  125. 

  126.     
    127. 

  127.             <div class="phpdocumentor-element__package">
    128. 

  128.             in package
    129. 

  129.             <ul class="phpdocumentor-breadcrumbs">
    130. 

  130.                                     <li class="phpdocumentor-breadcrumb"><a href="packages/Application.html">Application</a></li>
    131. 

  131.                             </ul>
    132. 

  132.         </div>
    133. 

  133.     
    134. 

  134.     
    135. 

  135.     </h2>
    136. 

  136. 

  137. <div class="phpdocumentor-label-line">
    138. 

  138. 

  139.     <div class="phpdocumentor-label phpdocumentor-label--success"><span>Final</span><span>Yes</span></div>
    140. 

  140. 

  141. 

  142. </div>
    143. 

  143. 

  144.         <aside class="phpdocumentor-element-found-in">
    145. 

  145.     <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>
    146. 

  146.     :
    147. 

  147.     <span class="phpdocumentor-element-found-in__line">28</span>
    148. 

  148. 

  149.     </aside>
    150. 

  150. 

  151.             <p class="phpdocumentor-summary">This class attempts to find finder patterns in a QR Code. Finder patterns are the square
    152. 

  152. markers at three corners of a QR Code.</p>
    153. 

  153. 

  154.     <section class="phpdocumentor-description"><p>This class is thread-safe but not reentrant. Each thread must allocate its own object.</p>
    155. 

  155. </section>
    156. 

  156. 

  157. 

  158.     <h5 class="phpdocumentor-tag-list__heading" id="tags">
    159. 

  159.         Tags
    160. 

  160.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#tags" class="headerlink"><i class="fas fa-link"></i></a>
    161. 

  161. 

  162.     </h5>
    163. 

  163.     <dl class="phpdocumentor-tag-list">
    164. 

  164.                                     <dt class="phpdocumentor-tag-list__entry">
    165. 

  165.                     <span class="phpdocumentor-tag__name">author</span>
    166. 

  166.                 </dt>
    167. 

  167.                 <dd class="phpdocumentor-tag-list__definition">
    168. 

  168.                                                                                 
    169. 

  169.                                                  <section class="phpdocumentor-description"><p>Sean Owen</p>
    170. 

  170. </section>
    171. 

  171. 

  172.                                     </dd>
    173. 

  173.                                             </dl>
    174. 

  174. 

  175. 

  176. 

  177. <h3 id="toc">
    178. 

  178.     Table of Contents
    179. 

  179.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#toc" class="headerlink"><i class="fas fa-link"></i></a>
    180. 

  180. 

  181. </h3>
    182. 

  182. 

  183. 

  184. 

  185. 

  186. 

  187. 

  188. 

  189. <h4 id="toc-constants">
    190. 

  190.     Constants
    191. 

  191.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#toc-constants" class="headerlink"><i class="fas fa-link"></i></a>
    192. 

  192. 

  193. </h4>
    194. 

  194. <dl class="phpdocumentor-table-of-contents">
    195. 

  195.             <dt class="phpdocumentor-table-of-contents__entry -constant -private">
    196. 

  196.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_CENTER_QUORUM">CENTER_QUORUM</a>
    197. 

  197.     <span>
    198. 

  198.         &nbsp;= 2                            </span>
    199. 

  199. </dt>
    200. 

  200. 

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

  202.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_MAX_MODULES">MAX_MODULES</a>
    203. 

  203.     <span>
    204. 

  204.         &nbsp;= 177                            </span>
    205. 

  205. </dt>
    206. 

  206. 

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

  208.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_MIN_SKIP">MIN_SKIP</a>
    209. 

  209.     <span>
    210. 

  210.         &nbsp;= 2                            </span>
    211. 

  211. </dt>
    212. 

  212. 

  213.     </dl>
    214. 

  214. 

  215. 

  216. <h4 id="toc-properties">
    217. 

  217.     Properties
    218. 

  218.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#toc-properties" class="headerlink"><i class="fas fa-link"></i></a>
    219. 

  219. 

  220. </h4>
    221. 

  221. <dl class="phpdocumentor-table-of-contents">
    222. 

  222.             <dt class="phpdocumentor-table-of-contents__entry -property -private">
    223. 

  223.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_hasSkipped">$hasSkipped</a>
    224. 

  224.     <span>
    225. 

  225.                         &nbsp;: bool            </span>
    226. 

  226. </dt>
    227. 

  227. 

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

  229.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_matrix">$matrix</a>
    230. 

  230.     <span>
    231. 

  231.                         &nbsp;: <a href="classes/chillerlan-QRCode-Decoder-BitMatrix.html"><abbr title="\chillerlan\QRCode\Decoder\BitMatrix">BitMatrix</abbr></a>            </span>
    232. 

  232. </dt>
    233. 

  233. 

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

  235.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_possibleCenters">$possibleCenters</a>
    236. 

  236.     <span>
    237. 

  237.                         &nbsp;: array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;            </span>
    238. 

  238. </dt>
    239. 

  239. 

  240.     </dl>
    241. 

  241. 

  242. <h4 id="toc-methods">
    243. 

  243.     Methods
    244. 

  244.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#toc-methods" class="headerlink"><i class="fas fa-link"></i></a>
    245. 

  245. 

  246. </h4>
    247. 

  247. <dl class="phpdocumentor-table-of-contents">
    248. 

  248.             <dt class="phpdocumentor-table-of-contents__entry -method -public">
    249. 

  249.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method___construct">__construct()</a>
    250. 

  250.     <span>
    251. 

  251.                                 &nbsp;: mixed    </span>
    252. 

  252. </dt>
    253. 

  253. <dd>Creates a finder that will search the image for three finder patterns.</dd>
    254. 

  254. 

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

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

  257.     <span>
    258. 

  258.                                 &nbsp;: array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;    </span>
    259. 

  259. </dt>
    260. 

  260. 

  261.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    262. 

  262.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_centerFromEnd">centerFromEnd()</a>
    263. 

  263.     <span>
    264. 

  264.                                 &nbsp;: float    </span>
    265. 

  265. </dt>
    266. 

  266. <dd>Given a count of black/white/black/white/black pixels just seen and an end position,
    267. 

  267. figures the location of the center of this run.</dd>
    268. 

  268. 

  269.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    270. 

  270.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckDiagonal">crossCheckDiagonal()</a>
    271. 

  271.     <span>
    272. 

  272.                                 &nbsp;: bool    </span>
    273. 

  273. </dt>
    274. 

  274. <dd>After a vertical and horizontal scan finds a potential finder pattern, this method
    275. 

  275. &quot;cross-cross-cross-checks&quot; by scanning down diagonally through the center of the possible
    276. 

  276. finder pattern to see if the same proportion is detected.</dd>
    277. 

  277. 

  278.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    279. 

  279.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckHorizontal">crossCheckHorizontal()</a>
    280. 

  280.     <span>
    281. 

  281.                                 &nbsp;: float|null    </span>
    282. 

  282. </dt>
    283. 

  283. <dd>Like #crossCheckVertical(int, int, int, int), and in fact is basically identical,
    284. 

  284. except it reads horizontally instead of vertically. This is used to cross-cross
    285. 

  285. check a vertical cross-check and locate the real center of the alignment pattern.</dd>
    286. 

  286. 

  287.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    288. 

  288.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckVertical">crossCheckVertical()</a>
    289. 

  289.     <span>
    290. 

  290.                                 &nbsp;: float|null    </span>
    291. 

  291. </dt>
    292. 

  292. <dd>After a horizontal scan finds a potential finder pattern, this method
    293. 

  293. &quot;cross-checks&quot; by scanning down vertically through the center of the possible
    294. 

  294. finder pattern to see if the same proportion is detected.</dd>
    295. 

  295. 

  296.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    297. 

  297.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossProductZ">crossProductZ()</a>
    298. 

  298.     <span>
    299. 

  299.                                 &nbsp;: float    </span>
    300. 

  300. </dt>
    301. 

  301. <dd>Returns the z component of the cross product between vectors BC and BA.</dd>
    302. 

  302. 

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

  304.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_doShiftCounts2">doShiftCounts2()</a>
    305. 

  305.     <span>
    306. 

  306.                                 &nbsp;: array&lt;string|int, int&gt;    </span>
    307. 

  307. </dt>
    308. 

  308. 

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

  310.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_findRowSkip">findRowSkip()</a>
    311. 

  311.     <span>
    312. 

  312.                                 &nbsp;: int    </span>
    313. 

  313. </dt>
    314. 

  314. 

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

  316.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternCross">foundPatternCross()</a>
    317. 

  317.     <span>
    318. 

  318.                                 &nbsp;: bool    </span>
    319. 

  319. </dt>
    320. 

  320. 

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

  322.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternDiagonal">foundPatternDiagonal()</a>
    323. 

  323.     <span>
    324. 

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

  325. </dt>
    326. 

  326. 

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

  328.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternVariance">foundPatternVariance()</a>
    329. 

  329.     <span>
    330. 

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

  331. </dt>
    332. 

  332. 

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

  334.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_getCrossCheckStateCount">getCrossCheckStateCount()</a>
    335. 

  335.     <span>
    336. 

  336.                                 &nbsp;: array&lt;string|int, int&gt;    </span>
    337. 

  337. </dt>
    338. 

  338. 

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

  340.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_handlePossibleCenter">handlePossibleCenter()</a>
    341. 

  341.     <span>
    342. 

  342.                                 &nbsp;: bool    </span>
    343. 

  343. </dt>
    344. 

  344. <dd>This is called when a horizontal scan finds a possible alignment pattern. It will
    345. 

  345. cross-check with a vertical scan, and if successful, will, ah, cross-cross-check
    346. 

  346. with another horizontal scan. This is needed primarily to locate the real horizontal
    347. 

  347. center of the pattern in cases of extreme skew.</dd>
    348. 

  348. 

  349.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    350. 

  350.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_haveMultiplyConfirmedCenters">haveMultiplyConfirmedCenters()</a>
    351. 

  351.     <span>
    352. 

  352.                                 &nbsp;: bool    </span>
    353. 

  353. </dt>
    354. 

  354. 

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

  356.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_orderBestPatterns">orderBestPatterns()</a>
    357. 

  357.     <span>
    358. 

  358.                                 &nbsp;: array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;    </span>
    359. 

  359. </dt>
    360. 

  360. <dd>Orders an array of three ResultPoints in an order [A,B,C] such that AB is less than AC
    361. 

  361. and BC is less than AC, and the angle between BC and BA is less than 180 degrees.</dd>
    362. 

  362. 

  363.             <dt class="phpdocumentor-table-of-contents__entry -method -private">
    364. 

  364.     <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_selectBestPatterns">selectBestPatterns()</a>
    365. 

  365.     <span>
    366. 

  366.                                 &nbsp;: array&lt;string|int, <a href="classes/chillerlan-QRCode-Detector-FinderPattern.html"><abbr title="\chillerlan\QRCode\Detector\FinderPattern">FinderPattern</abbr></a>&gt;    </span>
    367. 

  367. </dt>
    368. 

  368. 

  369.     </dl>
    370. 

  370. 

  371. 

  372. 

  373. 

  374.         
    375. 

  375.     <section class="phpdocumentor-constants">
    376. 

  376.         <h3 class="phpdocumentor-elements__header" id="constants">
    377. 

  377.             Constants
    378. 

  378.             <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constants" class="headerlink"><i class="fas fa-link"></i></a>
    379. 

  379. 

  380.         </h3>
    381. 

  381.                     <article class="phpdocumentor-element -constant -private ">
    382. 

  382.     <h4 class="phpdocumentor-element__name" id="constant_CENTER_QUORUM">
    383. 

  383.         CENTER_QUORUM
    384. 

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

  385. 

  386.     </h4>
    387. 

  387. 

  388.     <aside class="phpdocumentor-element-found-in">
    389. 

  389.     <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>
    390. 

  390.     :
    391. 

  391.     <span class="phpdocumentor-element-found-in__line">32</span>
    392. 

  392. 

  393.     </aside>
    394. 

  394. 

  395.     
    396. 

  396.     <code class="phpdocumentor-signature phpdocumentor-code ">
    397. 

  397.     <span class="phpdocumentor-signature__visibility">private</span>
    398. 

  398.         <span class="phpdocumentor-signature__type">mixed</span>
    399. 

  399.     <span class="phpdocumentor-signature__name">CENTER_QUORUM</span>
    400. 

  400.     = <span class="phpdocumentor-signature__default-value">2</span>
    401. 

  401. </code>
    402. 

  402. 

  403. 

  404.     
    405. 

  405.     
    406. 

  406.     
    407. 

  407. 

  408. </article>
    409. 

  409.                     <article class="phpdocumentor-element -constant -private ">
    410. 

  410.     <h4 class="phpdocumentor-element__name" id="constant_MAX_MODULES">
    411. 

  411.         MAX_MODULES
    412. 

  412.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_MAX_MODULES" class="headerlink"><i class="fas fa-link"></i></a>
    413. 

  413. 

  414.     </h4>
    415. 

  415. 

  416.     <aside class="phpdocumentor-element-found-in">
    417. 

  417.     <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>
    418. 

  418.     :
    419. 

  419.     <span class="phpdocumentor-element-found-in__line">31</span>
    420. 

  420. 

  421.     </aside>
    422. 

  422. 

  423.     
    424. 

  424.     <code class="phpdocumentor-signature phpdocumentor-code ">
    425. 

  425.     <span class="phpdocumentor-signature__visibility">private</span>
    426. 

  426.         <span class="phpdocumentor-signature__type">mixed</span>
    427. 

  427.     <span class="phpdocumentor-signature__name">MAX_MODULES</span>
    428. 

  428.     = <span class="phpdocumentor-signature__default-value">177</span>
    429. 

  429. </code>
    430. 

  430. 

  431. 

  432.     
    433. 

  433.     
    434. 

  434.     
    435. 

  435. 

  436. </article>
    437. 

  437.                     <article class="phpdocumentor-element -constant -private ">
    438. 

  438.     <h4 class="phpdocumentor-element__name" id="constant_MIN_SKIP">
    439. 

  439.         MIN_SKIP
    440. 

  440.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_MIN_SKIP" class="headerlink"><i class="fas fa-link"></i></a>
    441. 

  441. 

  442.     </h4>
    443. 

  443. 

  444.     <aside class="phpdocumentor-element-found-in">
    445. 

  445.     <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>
    446. 

  446.     :
    447. 

  447.     <span class="phpdocumentor-element-found-in__line">30</span>
    448. 

  448. 

  449.     </aside>
    450. 

  450. 

  451.     
    452. 

  452.     <code class="phpdocumentor-signature phpdocumentor-code ">
    453. 

  453.     <span class="phpdocumentor-signature__visibility">private</span>
    454. 

  454.         <span class="phpdocumentor-signature__type">mixed</span>
    455. 

  455.     <span class="phpdocumentor-signature__name">MIN_SKIP</span>
    456. 

  456.     = <span class="phpdocumentor-signature__default-value">2</span>
    457. 

  457. </code>
    458. 

  458. 

  459. 

  460.     
    461. 

  461.     
    462. 

  462.     
    463. 

  463. 

  464. </article>
    465. 

  465.             </section>
    466. 

  466. 

  467.         
    468. 

  468.     <section class="phpdocumentor-properties">
    469. 

  469.         <h3 class="phpdocumentor-elements__header" id="properties">
    470. 

  470.             Properties
    471. 

  471.             <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#properties" class="headerlink"><i class="fas fa-link"></i></a>
    472. 

  472. 

  473.         </h3>
    474. 

  474.                     <article
    475. 

  475.         class="
    476. 

  476.             phpdocumentor-element
    477. 

  477.             -property
    478. 

  478.             -private
    479. 

  479.                                                         "
    480. 

  480. >
    481. 

  481.     <h4 class="phpdocumentor-element__name" id="property_hasSkipped">
    482. 

  482.         $hasSkipped
    483. 

  483.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_hasSkipped" class="headerlink"><i class="fas fa-link"></i></a>
    484. 

  484. 

  485.         <span class="phpdocumentor-element__modifiers">
    486. 

  486.                                 </span>
    487. 

  487.     </h4>
    488. 

  488.     <aside class="phpdocumentor-element-found-in">
    489. 

  489.     <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>
    490. 

  490.     :
    491. 

  491.     <span class="phpdocumentor-element-found-in__line">36</span>
    492. 

  492. 

  493.     </aside>
    494. 

  494. 

  495.     
    496. 

  496.     <code class="phpdocumentor-code phpdocumentor-signature ">
    497. 

  497.     <span class="phpdocumentor-signature__visibility">private</span>
    498. 

  498.         <span class="phpdocumentor-signature__type">bool</span>
    499. 

  499.     <span class="phpdocumentor-signature__name">$hasSkipped</span>
    500. 

  500.      = <span class="phpdocumentor-signature__default-value">false</span></code>
    501. 

  501. 

  502.     
    503. 

  503.     
    504. 

  504.     
    505. 

  505. 

  506. </article>
    507. 

  507.                     <article
    508. 

  508.         class="
    509. 

  509.             phpdocumentor-element
    510. 

  510.             -property
    511. 

  511.             -private
    512. 

  512.                                                         "
    513. 

  513. >
    514. 

  514.     <h4 class="phpdocumentor-element__name" id="property_matrix">
    515. 

  515.         $matrix
    516. 

  516.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_matrix" class="headerlink"><i class="fas fa-link"></i></a>
    517. 

  517. 

  518.         <span class="phpdocumentor-element__modifiers">
    519. 

  519.                                 </span>
    520. 

  520.     </h4>
    521. 

  521.     <aside class="phpdocumentor-element-found-in">
    522. 

  522.     <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>
    523. 

  523.     :
    524. 

  524.     <span class="phpdocumentor-element-found-in__line">33</span>
    525. 

  525. 

  526.     </aside>
    527. 

  527. 

  528.     
    529. 

  529.     <code class="phpdocumentor-code phpdocumentor-signature ">
    530. 

  530.     <span class="phpdocumentor-signature__visibility">private</span>
    531. 

  531.         <span class="phpdocumentor-signature__type"><a href="classes/chillerlan-QRCode-Decoder-BitMatrix.html"><abbr title="\chillerlan\QRCode\Decoder\BitMatrix">BitMatrix</abbr></a></span>
    532. 

  532.     <span class="phpdocumentor-signature__name">$matrix</span>
    533. 

  533.     </code>
    534. 

  534. 

  535.     
    536. 

  536.     
    537. 

  537.     
    538. 

  538. 

  539. </article>
    540. 

  540.                     <article
    541. 

  541.         class="
    542. 

  542.             phpdocumentor-element
    543. 

  543.             -property
    544. 

  544.             -private
    545. 

  545.                                                         "
    546. 

  546. >
    547. 

  547.     <h4 class="phpdocumentor-element__name" id="property_possibleCenters">
    548. 

  548.         $possibleCenters
    549. 

  549.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_possibleCenters" class="headerlink"><i class="fas fa-link"></i></a>
    550. 

  550. 

  551.         <span class="phpdocumentor-element__modifiers">
    552. 

  552.                                 </span>
    553. 

  553.     </h4>
    554. 

  554.     <aside class="phpdocumentor-element-found-in">
    555. 

  555.     <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>
    556. 

  556.     :
    557. 

  557.     <span class="phpdocumentor-element-found-in__line">35</span>
    558. 

  558. 

  559.     </aside>
    560. 

  560. 

  561.     
    562. 

  562.     <code class="phpdocumentor-code phpdocumentor-signature ">
    563. 

  563.     <span class="phpdocumentor-signature__visibility">private</span>
    564. 

  564.         <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>
    565. 

  565.     <span class="phpdocumentor-signature__name">$possibleCenters</span>
    566. 

  566.     </code>
    567. 

  567. 

  568.     
    569. 

  569.     
    570. 

  570.     
    571. 

  571. 

  572. </article>
    573. 

  573.             </section>
    574. 

  574. 

  575.             <section class="phpdocumentor-methods">
    576. 

  576.         <h3 class="phpdocumentor-elements__header" id="methods">
    577. 

  577.             Methods
    578. 

  578.             <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#methods" class="headerlink"><i class="fas fa-link"></i></a>
    579. 

  579. 

  580.         </h3>
    581. 

  581.                     <article
    582. 

  582.         class="phpdocumentor-element
    583. 

  583.             -method
    584. 

  584.             -public
    585. 

  585.                                                         "
    586. 

  586. >
    587. 

  587.     <h4 class="phpdocumentor-element__name" id="method___construct">
    588. 

  588.         __construct()
    589. 

  589.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method___construct" class="headerlink"><i class="fas fa-link"></i></a>
    590. 

  590. 

  591.     </h4>
    592. 

  592.     <aside class="phpdocumentor-element-found-in">
    593. 

  593.     <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>
    594. 

  594.     :
    595. 

  595.     <span class="phpdocumentor-element-found-in__line">43</span>
    596. 

  596. 

  597.     </aside>
    598. 

  598. 

  599.         <p class="phpdocumentor-summary">Creates a finder that will search the image for three finder patterns.</p>
    600. 

  600. 

  601.     <code class="phpdocumentor-code phpdocumentor-signature ">
    602. 

  602.     <span class="phpdocumentor-signature__visibility">public</span>
    603. 

  603.                     <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>
    604. 

  604. 

  605.     <div class="phpdocumentor-label-line">
    606. 

  606.         </div>
    607. 

  607.     
    608. 

  608.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    609. 

  609.     <dl class="phpdocumentor-argument-list">
    610. 

  610.                     <dt class="phpdocumentor-argument-list__entry">
    611. 

  611.                 <span class="phpdocumentor-signature__argument__name">$matrix</span>
    612. 

  612.                 : <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>
    613. 

  613.                             </dt>
    614. 

  614.             <dd class="phpdocumentor-argument-list__definition">
    615. 

  615.                     <section class="phpdocumentor-description"><p>image to search</p>
    616. 

  616. </section>
    617. 

  617. 

  618.             </dd>
    619. 

  619.             </dl>
    620. 

  620. 

  621.     
    622. 

  622. 

  623.     
    624. 

  624. </article>
    625. 

  625.                     <article
    626. 

  626.         class="phpdocumentor-element
    627. 

  627.             -method
    628. 

  628.             -public
    629. 

  629.                                                         "
    630. 

  630. >
    631. 

  631.     <h4 class="phpdocumentor-element__name" id="method_find">
    632. 

  632.         find()
    633. 

  633.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_find" class="headerlink"><i class="fas fa-link"></i></a>
    634. 

  634. 

  635.     </h4>
    636. 

  636.     <aside class="phpdocumentor-element-found-in">
    637. 

  637.     <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>
    638. 

  638.     :
    639. 

  639.     <span class="phpdocumentor-element-found-in__line">51</span>
    640. 

  640. 

  641.     </aside>
    642. 

  642. 

  643.     
    644. 

  644.     <code class="phpdocumentor-code phpdocumentor-signature ">
    645. 

  645.     <span class="phpdocumentor-signature__visibility">public</span>
    646. 

  646.                     <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>
    647. 

  647. 

  648.     <div class="phpdocumentor-label-line">
    649. 

  649.         </div>
    650. 

  650.     
    651. 

  651.     
    652. 

  652.     
    653. 

  653. 

  654.             <section>
    655. 

  655.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    656. 

  656.         <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>
    657. 

  657.             </section>
    658. 

  658. 

  659. </article>
    660. 

  660.                     <article
    661. 

  661.         class="phpdocumentor-element
    662. 

  662.             -method
    663. 

  663.             -private
    664. 

  664.                                                         "
    665. 

  665. >
    666. 

  666.     <h4 class="phpdocumentor-element__name" id="method_centerFromEnd">
    667. 

  667.         centerFromEnd()
    668. 

  668.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_centerFromEnd" class="headerlink"><i class="fas fa-link"></i></a>
    669. 

  669. 

  670.     </h4>
    671. 

  671.     <aside class="phpdocumentor-element-found-in">
    672. 

  672.     <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>
    673. 

  673.     :
    674. 

  674.     <span class="phpdocumentor-element-found-in__line">190</span>
    675. 

  675. 

  676.     </aside>
    677. 

  677. 

  678.         <p class="phpdocumentor-summary">Given a count of black/white/black/white/black pixels just seen and an end position,
    679. 

  679. figures the location of the center of this run.</p>
    680. 

  680. 

  681.     <code class="phpdocumentor-code phpdocumentor-signature ">
    682. 

  682.     <span class="phpdocumentor-signature__visibility">private</span>
    683. 

  683.                     <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>
    684. 

  684. 

  685.     <div class="phpdocumentor-label-line">
    686. 

  686.         </div>
    687. 

  687.     
    688. 

  688.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    689. 

  689.     <dl class="phpdocumentor-argument-list">
    690. 

  690.                     <dt class="phpdocumentor-argument-list__entry">
    691. 

  691.                 <span class="phpdocumentor-signature__argument__name">$stateCount</span>
    692. 

  692.                 : <span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;</span>
    693. 

  693.                             </dt>
    694. 

  694.             <dd class="phpdocumentor-argument-list__definition">
    695. 

  695.                 
    696. 

  696.             </dd>
    697. 

  697.                     <dt class="phpdocumentor-argument-list__entry">
    698. 

  698.                 <span class="phpdocumentor-signature__argument__name">$end</span>
    699. 

  699.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    700. 

  700.                             </dt>
    701. 

  701.             <dd class="phpdocumentor-argument-list__definition">
    702. 

  702.                 
    703. 

  703.             </dd>
    704. 

  704.             </dl>
    705. 

  705. 

  706.     
    707. 

  707. 

  708.             <section>
    709. 

  709.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    710. 

  710.         <span class="phpdocumentor-signature__response_type">float</span>
    711. 

  711.             </section>
    712. 

  712. 

  713. </article>
    714. 

  714.                     <article
    715. 

  715.         class="phpdocumentor-element
    716. 

  716.             -method
    717. 

  717.             -private
    718. 

  718.                                                         "
    719. 

  719. >
    720. 

  720.     <h4 class="phpdocumentor-element__name" id="method_crossCheckDiagonal">
    721. 

  721.         crossCheckDiagonal()
    722. 

  722.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckDiagonal" class="headerlink"><i class="fas fa-link"></i></a>
    723. 

  723. 

  724.     </h4>
    725. 

  725.     <aside class="phpdocumentor-element-found-in">
    726. 

  726.     <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>
    727. 

  727.     :
    728. 

  728.     <span class="phpdocumentor-element-found-in__line">254</span>
    729. 

  729. 

  730.     </aside>
    731. 

  731. 

  732.         <p class="phpdocumentor-summary">After a vertical and horizontal scan finds a potential finder pattern, this method
    733. 

  733. &quot;cross-cross-cross-checks&quot; by scanning down diagonally through the center of the possible
    734. 

  734. finder pattern to see if the same proportion is detected.</p>
    735. 

  735. 

  736.     <code class="phpdocumentor-code phpdocumentor-signature ">
    737. 

  737.     <span class="phpdocumentor-signature__visibility">private</span>
    738. 

  738.                     <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>
    739. 

  739. 

  740.     <div class="phpdocumentor-label-line">
    741. 

  741.         </div>
    742. 

  742.     
    743. 

  743.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    744. 

  744.     <dl class="phpdocumentor-argument-list">
    745. 

  745.                     <dt class="phpdocumentor-argument-list__entry">
    746. 

  746.                 <span class="phpdocumentor-signature__argument__name">$centerI</span>
    747. 

  747.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    748. 

  748.                             </dt>
    749. 

  749.             <dd class="phpdocumentor-argument-list__definition">
    750. 

  750.                     <section class="phpdocumentor-description"><p>row where a finder pattern was detected</p>
    751. 

  751. </section>
    752. 

  752. 

  753.             </dd>
    754. 

  754.                     <dt class="phpdocumentor-argument-list__entry">
    755. 

  755.                 <span class="phpdocumentor-signature__argument__name">$centerJ</span>
    756. 

  756.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    757. 

  757.                             </dt>
    758. 

  758.             <dd class="phpdocumentor-argument-list__definition">
    759. 

  759.                     <section class="phpdocumentor-description"><p>center of the section that appears to cross a finder pattern</p>
    760. 

  760. </section>
    761. 

  761. 

  762.             </dd>
    763. 

  763.             </dl>
    764. 

  764. 

  765.     
    766. 

  766. 

  767.             <section>
    768. 

  768.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    769. 

  769.         <span class="phpdocumentor-signature__response_type">bool</span>
    770. 

  770.                     &mdash;
    771. 

  771.                 <section class="phpdocumentor-description"><p>true if proportions are withing expected limits</p>
    772. 

  772. </section>
    773. 

  773. 

  774.             </section>
    775. 

  775. 

  776. </article>
    777. 

  777.                     <article
    778. 

  778.         class="phpdocumentor-element
    779. 

  779.             -method
    780. 

  780.             -private
    781. 

  781.                                                         "
    782. 

  782. >
    783. 

  783.     <h4 class="phpdocumentor-element__name" id="method_crossCheckHorizontal">
    784. 

  784.         crossCheckHorizontal()
    785. 

  785.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckHorizontal" class="headerlink"><i class="fas fa-link"></i></a>
    786. 

  786. 

  787.     </h4>
    788. 

  788.     <aside class="phpdocumentor-element-found-in">
    789. 

  789.     <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>
    790. 

  790.     :
    791. 

  791.     <span class="phpdocumentor-element-found-in__line">417</span>
    792. 

  792. 

  793.     </aside>
    794. 

  794. 

  795.         <p class="phpdocumentor-summary">Like #crossCheckVertical(int, int, int, int), and in fact is basically identical,
    796. 

  796. except it reads horizontally instead of vertically. This is used to cross-cross
    797. 

  797. check a vertical cross-check and locate the real center of the alignment pattern.</p>
    798. 

  798. 

  799.     <code class="phpdocumentor-code phpdocumentor-signature ">
    800. 

  800.     <span class="phpdocumentor-signature__visibility">private</span>
    801. 

  801.                     <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>
    802. 

  802. 

  803.     <div class="phpdocumentor-label-line">
    804. 

  804.         </div>
    805. 

  805.     
    806. 

  806.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    807. 

  807.     <dl class="phpdocumentor-argument-list">
    808. 

  808.                     <dt class="phpdocumentor-argument-list__entry">
    809. 

  809.                 <span class="phpdocumentor-signature__argument__name">$startJ</span>
    810. 

  810.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    811. 

  811.                             </dt>
    812. 

  812.             <dd class="phpdocumentor-argument-list__definition">
    813. 

  813.                 
    814. 

  814.             </dd>
    815. 

  815.                     <dt class="phpdocumentor-argument-list__entry">
    816. 

  816.                 <span class="phpdocumentor-signature__argument__name">$centerI</span>
    817. 

  817.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    818. 

  818.                             </dt>
    819. 

  819.             <dd class="phpdocumentor-argument-list__definition">
    820. 

  820.                 
    821. 

  821.             </dd>
    822. 

  822.                     <dt class="phpdocumentor-argument-list__entry">
    823. 

  823.                 <span class="phpdocumentor-signature__argument__name">$maxCount</span>
    824. 

  824.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    825. 

  825.                             </dt>
    826. 

  826.             <dd class="phpdocumentor-argument-list__definition">
    827. 

  827.                 
    828. 

  828.             </dd>
    829. 

  829.                     <dt class="phpdocumentor-argument-list__entry">
    830. 

  830.                 <span class="phpdocumentor-signature__argument__name">$originalStateCountTotal</span>
    831. 

  831.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    832. 

  832.                             </dt>
    833. 

  833.             <dd class="phpdocumentor-argument-list__definition">
    834. 

  834.                 
    835. 

  835.             </dd>
    836. 

  836.             </dl>
    837. 

  837. 

  838.     
    839. 

  839.     <h5 class="phpdocumentor-tag-list__heading" id="tags">
    840. 

  840.         Tags
    841. 

  841.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckHorizontal#tags" class="headerlink"><i class="fas fa-link"></i></a>
    842. 

  842. 

  843.     </h5>
    844. 

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

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

  846.                     <span class="phpdocumentor-tag__name">noinspection</span>
    847. 

  847.                 </dt>
    848. 

  848.                 <dd class="phpdocumentor-tag-list__definition">
    849. 

  849.                                                                                 
    850. 

  850.                                                  <section class="phpdocumentor-description"><p>DuplicatedCode</p>
    851. 

  851. </section>
    852. 

  852. 

  853.                                     </dd>
    854. 

  854.                                             </dl>
    855. 

  855. 

  856.             <section>
    857. 

  857.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    858. 

  858.         <span class="phpdocumentor-signature__response_type">float|null</span>
    859. 

  859.             </section>
    860. 

  860. 

  861. </article>
    862. 

  862.                     <article
    863. 

  863.         class="phpdocumentor-element
    864. 

  864.             -method
    865. 

  865.             -private
    866. 

  866.                                                         "
    867. 

  867. >
    868. 

  868.     <h4 class="phpdocumentor-element__name" id="method_crossCheckVertical">
    869. 

  869.         crossCheckVertical()
    870. 

  870.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckVertical" class="headerlink"><i class="fas fa-link"></i></a>
    871. 

  871. 

  872.     </h4>
    873. 

  873.     <aside class="phpdocumentor-element-found-in">
    874. 

  874.     <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>
    875. 

  875.     :
    876. 

  876.     <span class="phpdocumentor-element-found-in__line">333</span>
    877. 

  877. 

  878.     </aside>
    879. 

  879. 

  880.         <p class="phpdocumentor-summary">After a horizontal scan finds a potential finder pattern, this method
    881. 

  881. &quot;cross-checks&quot; by scanning down vertically through the center of the possible
    882. 

  882. finder pattern to see if the same proportion is detected.</p>
    883. 

  883. 

  884.     <code class="phpdocumentor-code phpdocumentor-signature ">
    885. 

  885.     <span class="phpdocumentor-signature__visibility">private</span>
    886. 

  886.                     <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>
    887. 

  887. 

  888.     <div class="phpdocumentor-label-line">
    889. 

  889.         </div>
    890. 

  890.     
    891. 

  891.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    892. 

  892.     <dl class="phpdocumentor-argument-list">
    893. 

  893.                     <dt class="phpdocumentor-argument-list__entry">
    894. 

  894.                 <span class="phpdocumentor-signature__argument__name">$startI</span>
    895. 

  895.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    896. 

  896.                             </dt>
    897. 

  897.             <dd class="phpdocumentor-argument-list__definition">
    898. 

  898.                     <section class="phpdocumentor-description"><p>row where a finder pattern was detected</p>
    899. 

  899. </section>
    900. 

  900. 

  901.             </dd>
    902. 

  902.                     <dt class="phpdocumentor-argument-list__entry">
    903. 

  903.                 <span class="phpdocumentor-signature__argument__name">$centerJ</span>
    904. 

  904.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    905. 

  905.                             </dt>
    906. 

  906.             <dd class="phpdocumentor-argument-list__definition">
    907. 

  907.                     <section class="phpdocumentor-description"><p>center of the section that appears to cross a finder pattern</p>
    908. 

  908. </section>
    909. 

  909. 

  910.             </dd>
    911. 

  911.                     <dt class="phpdocumentor-argument-list__entry">
    912. 

  912.                 <span class="phpdocumentor-signature__argument__name">$maxCount</span>
    913. 

  913.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    914. 

  914.                             </dt>
    915. 

  915.             <dd class="phpdocumentor-argument-list__definition">
    916. 

  916.                     <section class="phpdocumentor-description"><p>maximum reasonable number of modules that should be
    917. 

  917. observed in any reading state, based on the results of the horizontal scan</p>
    918. 

  918. </section>
    919. 

  919. 

  920.             </dd>
    921. 

  921.                     <dt class="phpdocumentor-argument-list__entry">
    922. 

  922.                 <span class="phpdocumentor-signature__argument__name">$originalStateCountTotal</span>
    923. 

  923.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    924. 

  924.                             </dt>
    925. 

  925.             <dd class="phpdocumentor-argument-list__definition">
    926. 

  926.                 
    927. 

  927.             </dd>
    928. 

  928.             </dl>
    929. 

  929. 

  930.     
    931. 

  931.     <h5 class="phpdocumentor-tag-list__heading" id="tags">
    932. 

  932.         Tags
    933. 

  933.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckVertical#tags" class="headerlink"><i class="fas fa-link"></i></a>
    934. 

  934. 

  935.     </h5>
    936. 

  936.     <dl class="phpdocumentor-tag-list">
    937. 

  937.                                     <dt class="phpdocumentor-tag-list__entry">
    938. 

  938.                     <span class="phpdocumentor-tag__name">noinspection</span>
    939. 

  939.                 </dt>
    940. 

  940.                 <dd class="phpdocumentor-tag-list__definition">
    941. 

  941.                                                                                 
    942. 

  942.                                                  <section class="phpdocumentor-description"><p>DuplicatedCode</p>
    943. 

  943. </section>
    944. 

  944. 

  945.                                     </dd>
    946. 

  946.                                             </dl>
    947. 

  947. 

  948.             <section>
    949. 

  949.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    950. 

  950.         <span class="phpdocumentor-signature__response_type">float|null</span>
    951. 

  951.                     &mdash;
    952. 

  952.                 <section class="phpdocumentor-description"><p>vertical center of finder pattern, or null if not found</p>
    953. 

  953. </section>
    954. 

  954. 

  955.             </section>
    956. 

  956. 

  957. </article>
    958. 

  958.                     <article
    959. 

  959.         class="phpdocumentor-element
    960. 

  960.             -method
    961. 

  961.             -private
    962. 

  962.                                                         "
    963. 

  963. >
    964. 

  964.     <h4 class="phpdocumentor-element__name" id="method_crossProductZ">
    965. 

  965.         crossProductZ()
    966. 

  966.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossProductZ" class="headerlink"><i class="fas fa-link"></i></a>
    967. 

  967. 

  968.     </h4>
    969. 

  969.     <aside class="phpdocumentor-element-found-in">
    970. 

  970.     <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>
    971. 

  971.     :
    972. 

  972.     <span class="phpdocumentor-element-found-in__line">763</span>
    973. 

  973. 

  974.     </aside>
    975. 

  975. 

  976.         <p class="phpdocumentor-summary">Returns the z component of the cross product between vectors BC and BA.</p>
    977. 

  977. 

  978.     <code class="phpdocumentor-code phpdocumentor-signature ">
    979. 

  979.     <span class="phpdocumentor-signature__visibility">private</span>
    980. 

  980.                     <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>
    981. 

  981. 

  982.     <div class="phpdocumentor-label-line">
    983. 

  983.         </div>
    984. 

  984.     
    985. 

  985.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    986. 

  986.     <dl class="phpdocumentor-argument-list">
    987. 

  987.                     <dt class="phpdocumentor-argument-list__entry">
    988. 

  988.                 <span class="phpdocumentor-signature__argument__name">$pointA</span>
    989. 

  989.                 : <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>
    990. 

  990.                             </dt>
    991. 

  991.             <dd class="phpdocumentor-argument-list__definition">
    992. 

  992.                 
    993. 

  993.             </dd>
    994. 

  994.                     <dt class="phpdocumentor-argument-list__entry">
    995. 

  995.                 <span class="phpdocumentor-signature__argument__name">$pointB</span>
    996. 

  996.                 : <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>
    997. 

  997.                             </dt>
    998. 

  998.             <dd class="phpdocumentor-argument-list__definition">
    999. 

  999.                 
    1000. 

  1000.             </dd>
    1001. 

  1001.                     <dt class="phpdocumentor-argument-list__entry">
    1002. 

  1002.                 <span class="phpdocumentor-signature__argument__name">$pointC</span>
    1003. 

  1003.                 : <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>
    1004. 

  1004.                             </dt>
    1005. 

  1005.             <dd class="phpdocumentor-argument-list__definition">
    1006. 

  1006.                 
    1007. 

  1007.             </dd>
    1008. 

  1008.             </dl>
    1009. 

  1009. 

  1010.     
    1011. 

  1011. 

  1012.             <section>
    1013. 

  1013.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1014. 

  1014.         <span class="phpdocumentor-signature__response_type">float</span>
    1015. 

  1015.             </section>
    1016. 

  1016. 

  1017. </article>
    1018. 

  1018.                     <article
    1019. 

  1019.         class="phpdocumentor-element
    1020. 

  1020.             -method
    1021. 

  1021.             -private
    1022. 

  1022.                                                         "
    1023. 

  1023. >
    1024. 

  1024.     <h4 class="phpdocumentor-element__name" id="method_doShiftCounts2">
    1025. 

  1025.         doShiftCounts2()
    1026. 

  1026.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_doShiftCounts2" class="headerlink"><i class="fas fa-link"></i></a>
    1027. 

  1027. 

  1028.     </h4>
    1029. 

  1029.     <aside class="phpdocumentor-element-found-in">
    1030. 

  1030.     <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>
    1031. 

  1031.     :
    1032. 

  1032.     <span class="phpdocumentor-element-found-in__line">174</span>
    1033. 

  1033. 

  1034.     </aside>
    1035. 

  1035. 

  1036.     
    1037. 

  1037.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1038. 

  1038.     <span class="phpdocumentor-signature__visibility">private</span>
    1039. 

  1039.                     <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>
    1040. 

  1040. 

  1041.     <div class="phpdocumentor-label-line">
    1042. 

  1042.         </div>
    1043. 

  1043.     
    1044. 

  1044.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    1045. 

  1045.     <dl class="phpdocumentor-argument-list">
    1046. 

  1046.                     <dt class="phpdocumentor-argument-list__entry">
    1047. 

  1047.                 <span class="phpdocumentor-signature__argument__name">$stateCount</span>
    1048. 

  1048.                 : <span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;</span>
    1049. 

  1049.                             </dt>
    1050. 

  1050.             <dd class="phpdocumentor-argument-list__definition">
    1051. 

  1051.                 
    1052. 

  1052.             </dd>
    1053. 

  1053.             </dl>
    1054. 

  1054. 

  1055.     
    1056. 

  1056. 

  1057.             <section>
    1058. 

  1058.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1059. 

  1059.         <span class="phpdocumentor-signature__response_type">array&lt;string|int, int&gt;</span>
    1060. 

  1060.             </section>
    1061. 

  1061. 

  1062. </article>
    1063. 

  1063.                     <article
    1064. 

  1064.         class="phpdocumentor-element
    1065. 

  1065.             -method
    1066. 

  1066.             -private
    1067. 

  1067.                                                         "
    1068. 

  1068. >
    1069. 

  1069.     <h4 class="phpdocumentor-element__name" id="method_findRowSkip">
    1070. 

  1070.         findRowSkip()
    1071. 

  1071.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_findRowSkip" class="headerlink"><i class="fas fa-link"></i></a>
    1072. 

  1072. 

  1073.     </h4>
    1074. 

  1074.     <aside class="phpdocumentor-element-found-in">
    1075. 

  1075.     <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>
    1076. 

  1076.     :
    1077. 

  1077.     <span class="phpdocumentor-element-found-in__line">553</span>
    1078. 

  1078. 

  1079.     </aside>
    1080. 

  1080. 

  1081.     
    1082. 

  1082.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1083. 

  1083.     <span class="phpdocumentor-signature__visibility">private</span>
    1084. 

  1084.                     <span class="phpdocumentor-signature__name">findRowSkip</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">int</span></code>
    1085. 

  1085. 

  1086.     <div class="phpdocumentor-label-line">
    1087. 

  1087.         </div>
    1088. 

  1088.     
    1089. 

  1089.     
    1090. 

  1090.     
    1091. 

  1091. 

  1092.             <section>
    1093. 

  1093.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1094. 

  1094.         <span class="phpdocumentor-signature__response_type">int</span>
    1095. 

  1095.                     &mdash;
    1096. 

  1096.                 <section class="phpdocumentor-description"><p>number of rows we could safely skip during scanning, based on the first
    1097. 

  1097. two finder patterns that have been located. In some cases their position will
    1098. 

  1098. allow us to infer that the third pattern must lie below a certain point farther
    1099. 

  1099. down in the image.</p>
    1100. 

  1100. </section>
    1101. 

  1101. 

  1102.             </section>
    1103. 

  1103. 

  1104. </article>
    1105. 

  1105.                     <article
    1106. 

  1106.         class="phpdocumentor-element
    1107. 

  1107.             -method
    1108. 

  1108.             -private
    1109. 

  1109.                                                         "
    1110. 

  1110. >
    1111. 

  1111.     <h4 class="phpdocumentor-element__name" id="method_foundPatternCross">
    1112. 

  1112.         foundPatternCross()
    1113. 

  1113.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternCross" class="headerlink"><i class="fas fa-link"></i></a>
    1114. 

  1114. 

  1115.     </h4>
    1116. 

  1116.     <aside class="phpdocumentor-element-found-in">
    1117. 

  1117.     <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>
    1118. 

  1118.     :
    1119. 

  1119.     <span class="phpdocumentor-element-found-in__line">197</span>
    1120. 

  1120. 

  1121.     </aside>
    1122. 

  1122. 

  1123.     
    1124. 

  1124.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1125. 

  1125.     <span class="phpdocumentor-signature__visibility">private</span>
    1126. 

  1126.                     <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>
    1127. 

  1127. 

  1128.     <div class="phpdocumentor-label-line">
    1129. 

  1129.         </div>
    1130. 

  1130.     
    1131. 

  1131.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    1132. 

  1132.     <dl class="phpdocumentor-argument-list">
    1133. 

  1133.                     <dt class="phpdocumentor-argument-list__entry">
    1134. 

  1134.                 <span class="phpdocumentor-signature__argument__name">$stateCount</span>
    1135. 

  1135.                 : <span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;</span>
    1136. 

  1136.                             </dt>
    1137. 

  1137.             <dd class="phpdocumentor-argument-list__definition">
    1138. 

  1138.                 
    1139. 

  1139.             </dd>
    1140. 

  1140.             </dl>
    1141. 

  1141. 

  1142.     
    1143. 

  1143. 

  1144.             <section>
    1145. 

  1145.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1146. 

  1146.         <span class="phpdocumentor-signature__response_type">bool</span>
    1147. 

  1147.             </section>
    1148. 

  1148. 

  1149. </article>
    1150. 

  1150.                     <article
    1151. 

  1151.         class="phpdocumentor-element
    1152. 

  1152.             -method
    1153. 

  1153.             -private
    1154. 

  1154.                                                         "
    1155. 

  1155. >
    1156. 

  1156.     <h4 class="phpdocumentor-element__name" id="method_foundPatternDiagonal">
    1157. 

  1157.         foundPatternDiagonal()
    1158. 

  1158.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternDiagonal" class="headerlink"><i class="fas fa-link"></i></a>
    1159. 

  1159. 

  1160.     </h4>
    1161. 

  1161.     <aside class="phpdocumentor-element-found-in">
    1162. 

  1162.     <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>
    1163. 

  1163.     :
    1164. 

  1164.     <span class="phpdocumentor-element-found-in__line">205</span>
    1165. 

  1165. 

  1166.     </aside>
    1167. 

  1167. 

  1168.     
    1169. 

  1169.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1170. 

  1170.     <span class="phpdocumentor-signature__visibility">private</span>
    1171. 

  1171.                     <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>
    1172. 

  1172. 

  1173.     <div class="phpdocumentor-label-line">
    1174. 

  1174.         </div>
    1175. 

  1175.     
    1176. 

  1176.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    1177. 

  1177.     <dl class="phpdocumentor-argument-list">
    1178. 

  1178.                     <dt class="phpdocumentor-argument-list__entry">
    1179. 

  1179.                 <span class="phpdocumentor-signature__argument__name">$stateCount</span>
    1180. 

  1180.                 : <span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;</span>
    1181. 

  1181.                             </dt>
    1182. 

  1182.             <dd class="phpdocumentor-argument-list__definition">
    1183. 

  1183.                 
    1184. 

  1184.             </dd>
    1185. 

  1185.             </dl>
    1186. 

  1186. 

  1187.     
    1188. 

  1188. 

  1189.             <section>
    1190. 

  1190.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1191. 

  1191.         <span class="phpdocumentor-signature__response_type">bool</span>
    1192. 

  1192.             </section>
    1193. 

  1193. 

  1194. </article>
    1195. 

  1195.                     <article
    1196. 

  1196.         class="phpdocumentor-element
    1197. 

  1197.             -method
    1198. 

  1198.             -private
    1199. 

  1199.                                                         "
    1200. 

  1200. >
    1201. 

  1201.     <h4 class="phpdocumentor-element__name" id="method_foundPatternVariance">
    1202. 

  1202.         foundPatternVariance()
    1203. 

  1203.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternVariance" class="headerlink"><i class="fas fa-link"></i></a>
    1204. 

  1204. 

  1205.     </h4>
    1206. 

  1206.     <aside class="phpdocumentor-element-found-in">
    1207. 

  1207.     <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>
    1208. 

  1208.     :
    1209. 

  1209.     <span class="phpdocumentor-element-found-in__line">216</span>
    1210. 

  1210. 

  1211.     </aside>
    1212. 

  1212. 

  1213.     
    1214. 

  1214.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1215. 

  1215.     <span class="phpdocumentor-signature__visibility">private</span>
    1216. 

  1216.                     <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>
    1217. 

  1217. 

  1218.     <div class="phpdocumentor-label-line">
    1219. 

  1219.         </div>
    1220. 

  1220.     
    1221. 

  1221.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    1222. 

  1222.     <dl class="phpdocumentor-argument-list">
    1223. 

  1223.                     <dt class="phpdocumentor-argument-list__entry">
    1224. 

  1224.                 <span class="phpdocumentor-signature__argument__name">$stateCount</span>
    1225. 

  1225.                 : <span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;</span>
    1226. 

  1226.                             </dt>
    1227. 

  1227.             <dd class="phpdocumentor-argument-list__definition">
    1228. 

  1228.                     <section class="phpdocumentor-description"><p>count of black/white/black/white/black pixels just read</p>
    1229. 

  1229. </section>
    1230. 

  1230. 

  1231.             </dd>
    1232. 

  1232.                     <dt class="phpdocumentor-argument-list__entry">
    1233. 

  1233.                 <span class="phpdocumentor-signature__argument__name">$variance</span>
    1234. 

  1234.                 : <span class="phpdocumentor-signature__argument__return-type">float</span>
    1235. 

  1235.                             </dt>
    1236. 

  1236.             <dd class="phpdocumentor-argument-list__definition">
    1237. 

  1237.                 
    1238. 

  1238.             </dd>
    1239. 

  1239.             </dl>
    1240. 

  1240. 

  1241.     
    1242. 

  1242. 

  1243.             <section>
    1244. 

  1244.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1245. 

  1245.         <span class="phpdocumentor-signature__response_type">bool</span>
    1246. 

  1246.                     &mdash;
    1247. 

  1247.                 <section class="phpdocumentor-description"><p>true if the proportions of the counts is close enough to the 1/1/3/1/1 ratios
    1248. 

  1248. used by finder patterns to be considered a match</p>
    1249. 

  1249. </section>
    1250. 

  1250. 

  1251.             </section>
    1252. 

  1252. 

  1253. </article>
    1254. 

  1254.                     <article
    1255. 

  1255.         class="phpdocumentor-element
    1256. 

  1256.             -method
    1257. 

  1257.             -private
    1258. 

  1258.                                                         "
    1259. 

  1259. >
    1260. 

  1260.     <h4 class="phpdocumentor-element__name" id="method_getCrossCheckStateCount">
    1261. 

  1261.         getCrossCheckStateCount()
    1262. 

  1262.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_getCrossCheckStateCount" class="headerlink"><i class="fas fa-link"></i></a>
    1263. 

  1263. 

  1264.     </h4>
    1265. 

  1265.     <aside class="phpdocumentor-element-found-in">
    1266. 

  1266.     <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>
    1267. 

  1267.     :
    1268. 

  1268.     <span class="phpdocumentor-element-found-in__line">165</span>
    1269. 

  1269. 

  1270.     </aside>
    1271. 

  1271. 

  1272.     
    1273. 

  1273.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1274. 

  1274.     <span class="phpdocumentor-signature__visibility">private</span>
    1275. 

  1275.                     <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>
    1276. 

  1276. 

  1277.     <div class="phpdocumentor-label-line">
    1278. 

  1278.         </div>
    1279. 

  1279.     
    1280. 

  1280.     
    1281. 

  1281.     
    1282. 

  1282. 

  1283.             <section>
    1284. 

  1284.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1285. 

  1285.         <span class="phpdocumentor-signature__response_type">array&lt;string|int, int&gt;</span>
    1286. 

  1286.             </section>
    1287. 

  1287. 

  1288. </article>
    1289. 

  1289.                     <article
    1290. 

  1290.         class="phpdocumentor-element
    1291. 

  1291.             -method
    1292. 

  1292.             -private
    1293. 

  1293.                                                         "
    1294. 

  1294. >
    1295. 

  1295.     <h4 class="phpdocumentor-element__name" id="method_handlePossibleCenter">
    1296. 

  1296.         handlePossibleCenter()
    1297. 

  1297.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_handlePossibleCenter" class="headerlink"><i class="fas fa-link"></i></a>
    1298. 

  1298. 

  1299.     </h4>
    1300. 

  1300.     <aside class="phpdocumentor-element-found-in">
    1301. 

  1301.     <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>
    1302. 

  1302.     :
    1303. 

  1303.     <span class="phpdocumentor-element-found-in__line">510</span>
    1304. 

  1304. 

  1305.     </aside>
    1306. 

  1306. 

  1307.         <p class="phpdocumentor-summary">This is called when a horizontal scan finds a possible alignment pattern. It will
    1308. 

  1308. cross-check with a vertical scan, and if successful, will, ah, cross-cross-check
    1309. 

  1309. with another horizontal scan. This is needed primarily to locate the real horizontal
    1310. 

  1310. center of the pattern in cases of extreme skew.</p>
    1311. 

  1311. 

  1312.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1313. 

  1313.     <span class="phpdocumentor-signature__visibility">private</span>
    1314. 

  1314.                     <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>
    1315. 

  1315. 

  1316.     <div class="phpdocumentor-label-line">
    1317. 

  1317.         </div>
    1318. 

  1318.         <section class="phpdocumentor-description"><p>And then we cross-cross-cross check with another diagonal scan.</p>
    1319. 

  1319. <p>If that succeeds the finder pattern location is added to a list that tracks
    1320. 

  1320. the number of times each location has been nearly-matched as a finder pattern.
    1321. 

  1321. Each additional find is more evidence that the location is in fact a finder
    1322. 

  1322. pattern center</p>
    1323. 

  1323. </section>
    1324. 

  1324. 

  1325.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    1326. 

  1326.     <dl class="phpdocumentor-argument-list">
    1327. 

  1327.                     <dt class="phpdocumentor-argument-list__entry">
    1328. 

  1328.                 <span class="phpdocumentor-signature__argument__name">$stateCount</span>
    1329. 

  1329.                 : <span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, int&gt;</span>
    1330. 

  1330.                             </dt>
    1331. 

  1331.             <dd class="phpdocumentor-argument-list__definition">
    1332. 

  1332.                     <section class="phpdocumentor-description"><p>reading state module counts from horizontal scan</p>
    1333. 

  1333. </section>
    1334. 

  1334. 

  1335.             </dd>
    1336. 

  1336.                     <dt class="phpdocumentor-argument-list__entry">
    1337. 

  1337.                 <span class="phpdocumentor-signature__argument__name">$i</span>
    1338. 

  1338.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    1339. 

  1339.                             </dt>
    1340. 

  1340.             <dd class="phpdocumentor-argument-list__definition">
    1341. 

  1341.                     <section class="phpdocumentor-description"><p>row where finder pattern may be found</p>
    1342. 

  1342. </section>
    1343. 

  1343. 

  1344.             </dd>
    1345. 

  1345.                     <dt class="phpdocumentor-argument-list__entry">
    1346. 

  1346.                 <span class="phpdocumentor-signature__argument__name">$j</span>
    1347. 

  1347.                 : <span class="phpdocumentor-signature__argument__return-type">int</span>
    1348. 

  1348.                             </dt>
    1349. 

  1349.             <dd class="phpdocumentor-argument-list__definition">
    1350. 

  1350.                     <section class="phpdocumentor-description"><p>end of possible finder pattern in row</p>
    1351. 

  1351. </section>
    1352. 

  1352. 

  1353.             </dd>
    1354. 

  1354.             </dl>
    1355. 

  1355. 

  1356.     
    1357. 

  1357. 

  1358.             <section>
    1359. 

  1359.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1360. 

  1360.         <span class="phpdocumentor-signature__response_type">bool</span>
    1361. 

  1361.                     &mdash;
    1362. 

  1362.                 <section class="phpdocumentor-description"><p>if a finder pattern candidate was found this time</p>
    1363. 

  1363. </section>
    1364. 

  1364. 

  1365.             </section>
    1366. 

  1366. 

  1367. </article>
    1368. 

  1368.                     <article
    1369. 

  1369.         class="phpdocumentor-element
    1370. 

  1370.             -method
    1371. 

  1371.             -private
    1372. 

  1372.                                                         "
    1373. 

  1373. >
    1374. 

  1374.     <h4 class="phpdocumentor-element__name" id="method_haveMultiplyConfirmedCenters">
    1375. 

  1375.         haveMultiplyConfirmedCenters()
    1376. 

  1376.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_haveMultiplyConfirmedCenters" class="headerlink"><i class="fas fa-link"></i></a>
    1377. 

  1377. 

  1378.     </h4>
    1379. 

  1379.     <aside class="phpdocumentor-element-found-in">
    1380. 

  1380.     <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>
    1381. 

  1381.     :
    1382. 

  1382.     <span class="phpdocumentor-element-found-in__line">591</span>
    1383. 

  1383. 

  1384.     </aside>
    1385. 

  1385. 

  1386.     
    1387. 

  1387.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1388. 

  1388.     <span class="phpdocumentor-signature__visibility">private</span>
    1389. 

  1389.                     <span class="phpdocumentor-signature__name">haveMultiplyConfirmedCenters</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">bool</span></code>
    1390. 

  1390. 

  1391.     <div class="phpdocumentor-label-line">
    1392. 

  1392.         </div>
    1393. 

  1393.     
    1394. 

  1394.     
    1395. 

  1395.     
    1396. 

  1396. 

  1397.             <section>
    1398. 

  1398.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1399. 

  1399.         <span class="phpdocumentor-signature__response_type">bool</span>
    1400. 

  1400.                     &mdash;
    1401. 

  1401.                 <section class="phpdocumentor-description"><p>true if we have found at least 3 finder patterns that have been detected
    1402. 

  1402. at least #CENTER_QUORUM times each, and, the estimated module size of the
    1403. 

  1403. candidates is &quot;pretty similar&quot;</p>
    1404. 

  1404. </section>
    1405. 

  1405. 

  1406.             </section>
    1407. 

  1407. 

  1408. </article>
    1409. 

  1409.                     <article
    1410. 

  1410.         class="phpdocumentor-element
    1411. 

  1411.             -method
    1412. 

  1412.             -private
    1413. 

  1413.                                                         "
    1414. 

  1414. >
    1415. 

  1415.     <h4 class="phpdocumentor-element__name" id="method_orderBestPatterns">
    1416. 

  1416.         orderBestPatterns()
    1417. 

  1417.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_orderBestPatterns" class="headerlink"><i class="fas fa-link"></i></a>
    1418. 

  1418. 

  1419.     </h4>
    1420. 

  1420.     <aside class="phpdocumentor-element-found-in">
    1421. 

  1421.     <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>
    1422. 

  1422.     :
    1423. 

  1423.     <span class="phpdocumentor-element-found-in__line">729</span>
    1424. 

  1424. 

  1425.     </aside>
    1426. 

  1426. 

  1427.         <p class="phpdocumentor-summary">Orders an array of three ResultPoints in an order [A,B,C] such that AB is less than AC
    1428. 

  1428. and BC is less than AC, and the angle between BC and BA is less than 180 degrees.</p>
    1429. 

  1429. 

  1430.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1431. 

  1431.     <span class="phpdocumentor-signature__visibility">private</span>
    1432. 

  1432.                     <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>
    1433. 

  1433. 

  1434.     <div class="phpdocumentor-label-line">
    1435. 

  1435.         </div>
    1436. 

  1436.     
    1437. 

  1437.         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    1438. 

  1438.     <dl class="phpdocumentor-argument-list">
    1439. 

  1439.                     <dt class="phpdocumentor-argument-list__entry">
    1440. 

  1440.                 <span class="phpdocumentor-signature__argument__name">$patterns</span>
    1441. 

  1441.                 : <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>
    1442. 

  1442.                             </dt>
    1443. 

  1443.             <dd class="phpdocumentor-argument-list__definition">
    1444. 

  1444.                     <section class="phpdocumentor-description"><p>array of three FinderPattern to order</p>
    1445. 

  1445. </section>
    1446. 

  1446. 

  1447.             </dd>
    1448. 

  1448.             </dl>
    1449. 

  1449. 

  1450.     
    1451. 

  1451. 

  1452.             <section>
    1453. 

  1453.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1454. 

  1454.         <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>
    1455. 

  1455.             </section>
    1456. 

  1456. 

  1457. </article>
    1458. 

  1458.                     <article
    1459. 

  1459.         class="phpdocumentor-element
    1460. 

  1460.             -method
    1461. 

  1461.             -private
    1462. 

  1462.                                                         "
    1463. 

  1463. >
    1464. 

  1464.     <h4 class="phpdocumentor-element__name" id="method_selectBestPatterns">
    1465. 

  1465.         selectBestPatterns()
    1466. 

  1466.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_selectBestPatterns" class="headerlink"><i class="fas fa-link"></i></a>
    1467. 

  1467. 

  1468.     </h4>
    1469. 

  1469.     <aside class="phpdocumentor-element-found-in">
    1470. 

  1470.     <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>
    1471. 

  1471.     :
    1472. 

  1472.     <span class="phpdocumentor-element-found-in__line">626</span>
    1473. 

  1473. 

  1474.     </aside>
    1475. 

  1475. 

  1476.     
    1477. 

  1477.     <code class="phpdocumentor-code phpdocumentor-signature ">
    1478. 

  1478.     <span class="phpdocumentor-signature__visibility">private</span>
    1479. 

  1479.                     <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>
    1480. 

  1480. 

  1481.     <div class="phpdocumentor-label-line">
    1482. 

  1482.         </div>
    1483. 

  1483.     
    1484. 

  1484.     
    1485. 

  1485.     
    1486. 

  1486.     <h5 class="phpdocumentor-tag-list__heading" id="tags">
    1487. 

  1487.         Tags
    1488. 

  1488.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_selectBestPatterns#tags" class="headerlink"><i class="fas fa-link"></i></a>
    1489. 

  1489. 

  1490.     </h5>
    1491. 

  1491.     <dl class="phpdocumentor-tag-list">
    1492. 

  1492.                                     <dt class="phpdocumentor-tag-list__entry">
    1493. 

  1493.                     <span class="phpdocumentor-tag__name">throws</span>
    1494. 

  1494.                 </dt>
    1495. 

  1495.                 <dd class="phpdocumentor-tag-list__definition">
    1496. 

  1496.                                                                 <span class="phpdocumentor-tag-link"><a href="classes/chillerlan-QRCode-Detector-QRCodeDetectorException.html"><abbr title="\chillerlan\QRCode\Detector\QRCodeDetectorException">QRCodeDetectorException</abbr></a></span>
    1497. 

  1497.                                                             
    1498. 

  1498.                                                  <section class="phpdocumentor-description"><p>if 3 such finder patterns do not exist</p>
    1499. 

  1499. </section>
    1500. 

  1500. 

  1501.                                     </dd>
    1502. 

  1502.                                             </dl>
    1503. 

  1503. 

  1504.             <section>
    1505. 

  1505.         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    1506. 

  1506.         <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>
    1507. 

  1507.                     &mdash;
    1508. 

  1508.                 <section class="phpdocumentor-description"><p>the 3 best FinderPatterns from our list of candidates. The &quot;best&quot; are
    1509. 

  1509. those that have been detected at least #CENTER_QUORUM times, and whose module
    1510. 

  1510. size differs from the average among those patterns the least</p>
    1511. 

  1511. </section>
    1512. 

  1512. 

  1513.             </section>
    1514. 

  1514. 

  1515. </article>
    1516. 

  1516.             </section>
    1517. 

  1517. 

  1518.         <div class="phpdocumentor-modal" id="source-view">
    1519. 

  1519.     <div class="phpdocumentor-modal-bg" data-exit-button></div>
    1520. 

  1520.     <div class="phpdocumentor-modal-container">
    1521. 

  1521.         <div class="phpdocumentor-modal-content">
    1522. 

  1522.             <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>
    1523. 

  1523.         </div>
    1524. 

  1524.         <button data-exit-button class="phpdocumentor-modal__close">&times;</button>
    1525. 

  1525.     </div>
    1526. 

  1526. </div>
    1527. 

  1527. 

  1528.     <script type="text/javascript">
    1529. 

  1529.         (function () {
    1530. 

  1530.             function loadExternalCodeSnippet(el, url, line) {
    1531. 

  1531.                 Array.prototype.slice.call(el.querySelectorAll('pre[data-src]')).forEach((pre) => {
    1532. 

  1532.                     const src = url || pre.getAttribute('data-src').replace(/\\/g, '/');
    1533. 

  1533.                     const language = 'php';
    1534. 

  1534. 

  1535.                     const code = document.createElement('code');
    1536. 

  1536.                     code.className = 'language-' + language;
    1537. 

  1537.                     pre.textContent = '';
    1538. 

  1538.                     pre.setAttribute('data-line', line)
    1539. 

  1539.                     code.textContent = 'Loading…';
    1540. 

  1540.                     pre.appendChild(code);
    1541. 

  1541. 

  1542.                     var xhr = new XMLHttpRequest();
    1543. 

  1543. 

  1544.                     xhr.open('GET', src, true);
    1545. 

  1545. 

  1546.                     xhr.onreadystatechange = function () {
    1547. 

  1547.                         if (xhr.readyState !== 4) {
    1548. 

  1548.                             return;
    1549. 

  1549.                         }
    1550. 

  1550. 

  1551.                         if (xhr.status < 400 && xhr.responseText) {
    1552. 

  1552.                             code.textContent = xhr.responseText;
    1553. 

  1553.                             Prism.highlightElement(code);
    1554. 

  1554.                             return;
    1555. 

  1555.                         }
    1556. 

  1556. 

  1557.                         if (xhr.status === 404) {
    1558. 

  1558.                             code.textContent = '✖ Error: File could not be found';
    1559. 

  1559.                             return;
    1560. 

  1560.                         }
    1561. 

  1561. 

  1562.                         if (xhr.status >= 400) {
    1563. 

  1563.                             code.textContent = '✖ Error ' + xhr.status + ' while fetching file: ' + xhr.statusText;
    1564. 

  1564.                             return;
    1565. 

  1565.                         }
    1566. 

  1566. 

  1567.                         code.textContent = '✖ Error: An unknown error occurred';
    1568. 

  1568.                     };
    1569. 

  1569. 

  1570.                     xhr.send(null);
    1571. 

  1571.                 });
    1572. 

  1572.             }
    1573. 

  1573. 

  1574.             const modalButtons = document.querySelectorAll("[data-modal]");
    1575. 

  1575.             const openedAsLocalFile = window.location.protocol === 'file:';
    1576. 

  1576.             if (modalButtons.length > 0 && openedAsLocalFile) {
    1577. 

  1577.                 console.warn(
    1578. 

  1578.                     'Viewing the source code is unavailable because you are opening this page from the file:// scheme; ' +
    1579. 

  1579.                     'browsers block XHR requests when a page is opened this way'
    1580. 

  1580.                 );
    1581. 

  1581.             }
    1582. 

  1582. 

  1583.             modalButtons.forEach(function (trigger) {
    1584. 

  1584.                 if (openedAsLocalFile) {
    1585. 

  1585.                     trigger.setAttribute("hidden", "hidden");
    1586. 

  1586.                 }
    1587. 

  1587. 

  1588.                 trigger.addEventListener("click", function (event) {
    1589. 

  1589.                     event.preventDefault();
    1590. 

  1590.                     const modal = document.getElementById(trigger.dataset.modal);
    1591. 

  1591.                     if (!modal) {
    1592. 

  1592.                         console.error(`Modal with id "${trigger.dataset.modal}" could not be found`);
    1593. 

  1593.                         return;
    1594. 

  1594.                     }
    1595. 

  1595.                     modal.classList.add("phpdocumentor-modal__open");
    1596. 

  1596. 

  1597.                     loadExternalCodeSnippet(modal, trigger.dataset.src || null, trigger.dataset.line)
    1598. 

  1598.                     const exits = modal.querySelectorAll("[data-exit-button]");
    1599. 

  1599.                     exits.forEach(function (exit) {
    1600. 

  1600.                         exit.addEventListener("click", function (event) {
    1601. 

  1601.                             event.preventDefault();
    1602. 

  1602.                             modal.classList.remove("phpdocumentor-modal__open");
    1603. 

  1603.                         });
    1604. 

  1604.                     });
    1605. 

  1605.                 });
    1606. 

  1606.             });
    1607. 

  1607.         })();
    1608. 

  1608.     </script>
    1609. 

  1609. 

  1610.     </article>
    1611. 

  1611.                                 </section>
    1612. 

  1612.                 <section class="phpdocumentor-on-this-page__sidebar">
    1613. 

  1613.                                 
    1614. 

  1614.     <section class="phpdocumentor-on-this-page__content">
    1615. 

  1615.         <strong class="phpdocumentor-on-this-page__title">On this page</strong>
    1616. 

  1616. 

  1617.         <ul class="phpdocumentor-list -clean">
    1618. 

  1618.             <li class="phpdocumentor-on-this-page-section__title">Table Of Contents</li>
    1619. 

  1619.             <li>
    1620. 

  1620.                 <ul class="phpdocumentor-list -clean">
    1621. 

  1621.                                         <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#toc-constants">Constants</a></li>
    1622. 

  1622.                                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#toc-properties">Properties</a></li>
    1623. 

  1623.                                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#toc-methods">Methods</a></li>
    1624. 

  1624.                                     </ul>
    1625. 

  1625.             </li>
    1626. 

  1626.                             <li class="phpdocumentor-on-this-page-section__title">Constants</li>
    1627. 

  1627.                 <li>
    1628. 

  1628.                     <ul class="phpdocumentor-list -clean">
    1629. 

  1629.                                                     <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_CENTER_QUORUM">CENTER_QUORUM</a></li>
    1630. 

  1630.                                                     <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_MAX_MODULES">MAX_MODULES</a></li>
    1631. 

  1631.                                                     <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#constant_MIN_SKIP">MIN_SKIP</a></li>
    1632. 

  1632.                                             </ul>
    1633. 

  1633.                 </li>
    1634. 

  1634.             
    1635. 

  1635.                             <li class="phpdocumentor-on-this-page-section__title">Properties</li>
    1636. 

  1636.                 <li>
    1637. 

  1637.                     <ul class="phpdocumentor-list -clean">
    1638. 

  1638.                                                     <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_hasSkipped">$hasSkipped<a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html"></li>
    1639. 

  1639.                                                     <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_matrix">$matrix<a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html"></li>
    1640. 

  1640.                                                     <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#property_possibleCenters">$possibleCenters<a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html"></li>
    1641. 

  1641.                                             </ul>
    1642. 

  1642.                 </li>
    1643. 

  1643.             
    1644. 

  1644.                         <li class="phpdocumentor-on-this-page-section__title">Methods</li>
    1645. 

  1645.             <li>
    1646. 

  1646.                 <ul class="phpdocumentor-list -clean">
    1647. 

  1647.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method___construct">__construct()</a></li>
    1648. 

  1648.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_find">find()</a></li>
    1649. 

  1649.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_centerFromEnd">centerFromEnd()</a></li>
    1650. 

  1650.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckDiagonal">crossCheckDiagonal()</a></li>
    1651. 

  1651.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckHorizontal">crossCheckHorizontal()</a></li>
    1652. 

  1652.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossCheckVertical">crossCheckVertical()</a></li>
    1653. 

  1653.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_crossProductZ">crossProductZ()</a></li>
    1654. 

  1654.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_doShiftCounts2">doShiftCounts2()</a></li>
    1655. 

  1655.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_findRowSkip">findRowSkip()</a></li>
    1656. 

  1656.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternCross">foundPatternCross()</a></li>
    1657. 

  1657.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternDiagonal">foundPatternDiagonal()</a></li>
    1658. 

  1658.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_foundPatternVariance">foundPatternVariance()</a></li>
    1659. 

  1659.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_getCrossCheckStateCount">getCrossCheckStateCount()</a></li>
    1660. 

  1660.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_handlePossibleCenter">handlePossibleCenter()</a></li>
    1661. 

  1661.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_haveMultiplyConfirmedCenters">haveMultiplyConfirmedCenters()</a></li>
    1662. 

  1662.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_orderBestPatterns">orderBestPatterns()</a></li>
    1663. 

  1663.                                             <li><a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#method_selectBestPatterns">selectBestPatterns()</a></li>
    1664. 

  1664.                                     </ul>
    1665. 

  1665.             </li>
    1666. 

  1666.                     </ul>
    1667. 

  1667.     </section>
    1668. 

  1668. 

  1669.                 </section>
    1670. 

  1670.                             </div>
    1671. 

  1671.             <section data-search-results class="phpdocumentor-search-results phpdocumentor-search-results--hidden">
    1672. 

  1672.     <section class="phpdocumentor-search-results__dialog">
    1673. 

  1673.         <header class="phpdocumentor-search-results__header">
    1674. 

  1674.             <h2 class="phpdocumentor-search-results__title">Search results</h2>
    1675. 

  1675.             <button class="phpdocumentor-search-results__close"><i class="fas fa-times"></i></button>
    1676. 

  1676.         </header>
    1677. 

  1677.         <section class="phpdocumentor-search-results__body">
    1678. 

  1678.             <ul class="phpdocumentor-search-results__entries"></ul>
    1679. 

  1679.         </section>
    1680. 

  1680.     </section>
    1681. 

  1681. </section>
    1682. 

  1682.         </div>
    1683. 

  1683.         <a href="classes/chillerlan-QRCode-Detector-FinderPatternFinder.html#top" class="phpdocumentor-back-to-top"><i class="fas fa-chevron-circle-up"></i></a>
    1684. 

  1684. 

  1685.     </main>
    1686. 

  1686. 

  1687.     <script>
    1688. 

  1688.         cssVars({});
    1689. 

  1689.     </script>
    1690. 

  1690.     <script src="https://cdn.jsdelivr.net/npm/prismjs@1.23.0/prism.min.js"></script>
    1691. 

  1691.     <script src="https://cdn.jsdelivr.net/npm/prismjs@1.23.0/plugins/autoloader/prism-autoloader.min.js"></script>
    1692. 

  1692.     <script src="https://cdn.jsdelivr.net/npm/prismjs@1.23.0/plugins/line-numbers/prism-line-numbers.min.js"></script>
    1693. 

  1693.     <script src="https://cdn.jsdelivr.net/npm/prismjs@1.23.0/plugins/line-highlight/prism-line-highlight.min.js"></script>
    1694. 

  1694. </body>
    1695. 

  1695. </html>
    1696.