{"id":1157,"date":"2019-12-31T21:46:22","date_gmt":"2019-12-31T12:46:22","guid":{"rendered":"http:\/\/168.138.214.208\/?p=1157"},"modified":"2020-08-31T20:47:36","modified_gmt":"2020-08-31T11:47:36","slug":"post-1157","status":"publish","type":"post","link":"https:\/\/nobunobu1717.site\/?p=1157","title":{"rendered":"Angular\u3067QuaggaJS\u3092\u4f7f\u7528\u3057\u3066\u30d0\u30fc\u30b3\u30fc\u30c9\u30b9\u30ad\u30e3\u30f3\u3059\u308b"},"content":{"rendered":"<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">Contents<\/p><ul class=\"toc_list\"><li><a href=\"#i\"><span class=\"toc_number toc_depth_1\">1<\/span> \u6982\u8981<\/a><\/li><li><a href=\"#i-2\"><span class=\"toc_number toc_depth_1\">2<\/span> \u524d\u63d0<\/a><\/li><li><a href=\"#i-3\"><span class=\"toc_number toc_depth_1\">3<\/span> \u5b9f\u88c5<\/a><\/li><\/ul><\/div>\n<h2><span id=\"i\">\u6982\u8981<\/span><\/h2>\n<p>Angular\u3067<a href=\"https:\/\/serratus.github.io\/quaggaJS\/\" target=\"_blank\" rel=\"noopener noreferrer\">QuaggaJS<\/a>\u3092\u4f7f\u3063\u3066\u30ab\u30e1\u30e9\u753b\u50cf\u304b\u3089\u30d0\u30fc\u30b3\u30fc\u30c9\u3092\u30b9\u30ad\u30e3\u30f3\u3059\u308b\u65b9\u6cd5\u306e\u7d39\u4ecb\u3002<\/p>\n<h2><span id=\"i-2\">\u524d\u63d0<\/span><\/h2>\n<p>Angular 8.2.14<br \/>\nnpm\u3067QuaggaJS\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/p>\n<h2><span id=\"i-3\">\u5b9f\u88c5<\/span><\/h2>\n<h3>\u30ec\u30a4\u30a2\u30a6\u30c8<\/h3>\n<p>\u30ab\u30e1\u30e9\u52d5\u753b\u3092\u8868\u793a\u3059\u308b\u305f\u3081\u306ediv\u30bf\u30b0\u3092\u7528\u610f\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:js decode:true \">  &lt;div id=\"camera-area\"&gt;\n  &lt;\/div&gt;<\/pre>\n<h3>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8<\/h3>\n<p>Quagga\u3092\u547c\u3073\u51fa\u3059\u305f\u3081\u306e\u51e6\u7406\u3092\u5b9f\u88c5\u3057\u307e\u3059\u3002<br \/>\n\u4eca\u56de\u306fstartCapture\u3068\u3044\u3063\u305f\u30e1\u30bd\u30c3\u30c9\u3092\u7528\u610f\u3057\u3001\u30dc\u30bf\u30f3\u62bc\u4e0b\u7b49\u3067\u64ae\u5f71\u3092\u958b\u59cb\u3059\u308b\u5834\u5408\u3092\u60f3\u5b9a\u3057\u3066\u8a18\u8f09\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:js decode:true \">\/\/ Quagga\u306e\u30a4\u30f3\u30dd\u30fc\u30c8\nimport Quagga from 'quagga';\n\nexport class  ScanComponent {\n\npublic startCapture() {\n    \/\/ Quagga\u306e\u8a2d\u5b9a\u9805\u76ee\n    const config = {\n      \/\/ \u30ab\u30e1\u30e9\u306e\u6620\u50cf\u306e\u8a2d\u5b9a\n      inputStream: {\n        type: 'LiveStream',\n        \/\/ \u30ab\u30e1\u30e9\u6620\u50cf\u3092\u8868\u793a\u3059\u308bHTML\u8981\u7d20\u306e\u8a2d\u5b9a\n        target: '#camera-area',\n        \/\/ \u30d0\u30c3\u30af\u30ab\u30e1\u30e9\u306e\u5229\u7528\u3092\u8a2d\u5b9a. (\u30d5\u30ed\u30f3\u30c8\u30ab\u30e1\u30e9\u306f\"user\")\n        constraints: {\n          height: 300,\n          facingMode: 'environment'\n        },\n        size: 900,\n        \/\/ \u691c\u51fa\u7bc4\u56f2\u306e\u6307\u5b9a:\n        area: { top: '0%', right: '0%', left: '0%', bottom: '30%' },\n        singleChannel: false\n      },\n      \/\/ \u89e3\u6790\u3059\u308b\u30ef\u30fc\u30ab\u6570\u306e\u8a2d\u5b9a\n      numOfWorkers: navigator.hardwareConcurrency || 4,\n      \/\/ \u30d0\u30fc\u30b3\u30fc\u30c9\u306e\u7a2e\u985e\u3092\u8a2d\u5b9a\n      decoder: { readers: ['ean_reader'] },\n      locate: false\n    };\n\n    Quagga.onDetected(result =&gt; {\n      \/\/ \u691c\u51fa\u6642\u306e\u51e6\u7406\n      this.onDetected(result);\n    });\n    Quagga.onProcessed(result =&gt; {\n      \/\/ \u691c\u51fa\u4e2d\u306e\u51e6\u7406\n      this.onProcessed(result);\n    });\n    \/\/ \u521d\u671f\u5316\u51e6\u7406\n    Quagga.init(config, error =&gt; {\n      if (!!error) {\n        console.error(`Error: ${error}`, error);\n        return;\n      }\n      \/\/ \u30a8\u30e9\u30fc\u304c\u306a\u3044\u5834\u5408\u306f\u3001\u8aad\u307f\u53d6\u308a\u3092\u958b\u59cb\n      Quagga.start();\n    });\n  }\n}\n\nprivate onDetected(result): void {\n\u3000const barcode = result.codeResult.code;\n  if(barcode) {\n    \/\/ \u30d0\u30fc\u30b3\u30fc\u30c9\u691c\u51fa\u6642\u306e\u51e6\u7406\u3092\u5b9f\u88c5\n\n    \/\/ \u64ae\u5f71\u3092\u6b62\u3081\u308b\n    this.stopCapture();\n  }\n}\n\nprivate onProcessed(result): void {\n}\n\nprivate stopCapture(): void {\n    Quagga.stop();\n}\n<\/pre>\n\n\t<p style=\"color:#666;margin-bottom:5px;\">\u30b9\u30dd\u30f3\u30b5\u30fc\u30ea\u30f3\u30af<\/p>\n\t<div class=\"middle-ad\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\n<h4>\u8d77\u52d5\u6642\u306e\u8a2d\u5b9a\u3092\u4f5c\u6210\u3059\u308b<\/h4>\n<p>\u753b\u9762\u306e\u89e3\u50cf\u5ea6\u3084\u691c\u51fa\u3059\u308b\u30d0\u30fc\u30b3\u30fc\u30c9\u306e\u7a2e\u985e\u306a\u3069\u306eQuagga\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u6307\u5b9a\u3059\u308b\u3002<br \/>\n\u30ec\u30a4\u30a2\u30a6\u30c8\u3067\u6307\u5b9a\u3057\u305fdiv\u30bf\u30b0\u306e\u6307\u5b9a\u3082\u5fd8\u308c\u305a\u306b\u8a18\u8f09\u3059\u308b\u3002<br \/>\n\u30d1\u30e9\u30e1\u30fc\u30bf\u81ea\u4f53\u306f\u5927\u91cf\u306b\u3042\u308b\u306e\u3067\u3001\u516c\u5f0f\u30b5\u30a4\u30c8\u306a\u3069\u3092\u53c2\u8003\u306b\u8abf\u6574\u3059\u308b\u3002<\/p>\n<h4>\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u306e\u767b\u9332<\/h4>\n<p>\u64ae\u5f71\u3092\u958b\u59cb\u3057\u305f\u969b\u306b\u547c\u3073\u51fa\u3055\u308c\u308b\u30a4\u30d9\u30f3\u30c8\u306b\u51e6\u7406\u3092\u767b\u9332\u3059\u308b\u3002<br \/>\nonDetected\u304c\u30d0\u30fc\u30b3\u30fc\u30c9\u304c\u691c\u77e5\u3055\u308c\u305f\u5834\u5408\u306b\u547c\u3073\u51fa\u3055\u308c\u308b\u51e6\u7406\u3001onProcessed\u304c\u691c\u51fa\u4e2d\u306b\u3088\u308a\u51fa\u3055\u308c\u308b\u51e6\u7406\u3002<br \/>\nonProcessed\u306f\u691c\u51fa\u4e2d\u306e\u30d0\u30fc\u30b3\u30fc\u30c9\u3092\u753b\u9762\u3067\u56f2\u307f\u305f\u3044\u7b49\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3067\u4f7f\u7528\u3067\u304d\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n<p>\u30a4\u30d9\u30f3\u30c8\u767b\u9332\u6642\u306e\u6ce8\u610f\u3068\u3057\u3066\u3001Quagga.onDetected(this.onDetected)\u3068\u306f\u305b\u305a\u306b\u3001\u30b5\u30f3\u30d7\u30eb\u306e\u3088\u3046\u306b\u30a2\u30ed\u30fc\u95a2\u6570\u3092\u7d4c\u7531\u3057\u3066\u51e6\u7406\u3092\u547c\u3073\u51fa\u3059\u4e8b\u3002\u305d\u3046\u3057\u306a\u3044\u3068\u3001this.onDetected\u5185\u306e\u51e6\u7406\u3067this\u3067\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u5185\u306e\u5909\u6570\u306b\u30a2\u30af\u30bb\u30b9\u51fa\u6765\u306a\u304f\u306a\u308b\u3002<\/p>\n<h4>\u521d\u671f\u5316\u51e6\u7406\u304a\u3088\u3073\u8aad\u307f\u53d6\u308a\u306e\u958b\u59cb<\/h4>\n<p>init\u95a2\u6570\u3092\u547c\u3073\u51fa\u3057\u3001\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u5185\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u306a\u3051\u308c\u3070\u3001start\u95a2\u6570\u3067\u30ad\u30e3\u30d7\u30c1\u30e3\u3092\u958b\u59cb\u3059\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Contents1 \u6982\u89812 \u524d\u63d03 \u5b9f\u88c5 \u6982\u8981 Angular\u3067QuaggaJS\u3092\u4f7f\u3063\u3066\u30ab\u30e1\u30e9\u753b\u50cf\u304b\u3089\u30d0\u30fc\u30b3\u30fc\u30c9\u3092\u30b9\u30ad\u30e3\u30f3\u3059\u308b\u65b9\u6cd5\u306e\u7d39\u4ecb\u3002 \u524d\u63d0 Angular 8.2.14 npm\u3067QuaggaJS &#8230; <\/p>\n","protected":false},"author":1,"featured_media":1126,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[23,22,16],"tags":[],"_links":{"self":[{"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=\/wp\/v2\/posts\/1157"}],"collection":[{"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1157"}],"version-history":[{"count":4,"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=\/wp\/v2\/posts\/1157\/revisions"}],"predecessor-version":[{"id":1467,"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=\/wp\/v2\/posts\/1157\/revisions\/1467"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=\/wp\/v2\/media\/1126"}],"wp:attachment":[{"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1157"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1157"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1157"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}