{"id":344,"date":"2022-03-14T08:37:56","date_gmt":"2022-03-13T23:37:56","guid":{"rendered":"https:\/\/ubun2m.com\/?p=344"},"modified":"2022-06-26T02:24:47","modified_gmt":"2022-06-25T17:24:47","slug":"ipad%e3%82%b9%e3%83%97%e3%83%aa%e3%83%83%e3%83%88%e3%83%93%e3%83%a5%e3%83%bc%e7%94%a8%e3%81%ae%e3%82%a2%e3%82%a4%e3%82%b3%e3%83%b3%e3%82%92%e4%bd%9c%e3%82%8b","status":"publish","type":"post","link":"https:\/\/ubun2m.com\/?p=344","title":{"rendered":"\u3010Javascript\u3011iPad\u30b9\u30d7\u30ea\u30c3\u30c8\u30d3\u30e5\u30fc\u7528\u306e\u30a2\u30a4\u30b3\u30f3\u3092\u4f5c\u308b"},"content":{"rendered":"\n<p><strong>\u66f4\u65b0\u65e5\uff1a2022\/03\/21<\/strong><\/p>\n\n\n\n<p>\u5358\u7d14\u306b\u30a2\u30d7\u30ea\u306e\u30a2\u30a4\u30b3\u30f3\u3092\u534a\u5206\u305a\u3064\u5207\u308a\u53d6\u3063\u3066\u7e4b\u3052\u308b\u3060\u3051\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4f5c\u3063\u305f\u3002\u30b7\u30e7\u30fc\u30c8\u30ab\u30c3\u30c8\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30a2\u30a4\u30b3\u30f3\u3060\u3068\u3001\u4f55\u306e\u30a2\u30d7\u30ea\u3092\u30b9\u30d7\u30ea\u30c3\u30c8\u3059\u308b\u304b\u308f\u304b\u308a\u306b\u304f\u3044\u304c\u3001\u30a2\u30a4\u30b3\u30f3\u3092\u898b\u308b\u3060\u3051\u3067\u5206\u304b\u308b\u3088\u3046\u306b\u306a\u308b\u306e\u3067\u4fbf\u5229\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"258\" src=\"https:\/\/ubun2m.com\/wp-content\/uploads\/2022\/03\/Untitled_Artwork-3-1024x258.png\" alt=\"\" class=\"wp-image-458\" srcset=\"https:\/\/ubun2m.com\/wp-content\/uploads\/2022\/03\/Untitled_Artwork-3-1024x258.png 1024w, https:\/\/ubun2m.com\/wp-content\/uploads\/2022\/03\/Untitled_Artwork-3-300x76.png 300w, https:\/\/ubun2m.com\/wp-content\/uploads\/2022\/03\/Untitled_Artwork-3-768x194.png 768w, https:\/\/ubun2m.com\/wp-content\/uploads\/2022\/03\/Untitled_Artwork-3.png 1293w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>\u30a2\u30a4\u30b3\u30f3\u5408\u6210\u30a4\u30e1\u30fc\u30b8<\/figcaption><\/figure>\n\n\n\n<p><strong>\uff1c\u4f7f\u7528\u65b9\u6cd5\uff1e<\/strong><\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30d5\u30a1\u30a4\u30eb\u9078\u629e\u30c0\u30a4\u30a2\u30ed\u30b0\u304b\u3089\uff11\u679a\u305a\u3064\u30a2\u30a4\u30b3\u30f3\u306e\u753b\u50cf\u3092\u9078\u629e\u3059\u308b\u3002\uff081\u679a\u76ee\u306f\u5de6\u5074\u30012\u679a\u76ee\u306f\u53f3\u5074\u306b\u306a\u308b\uff09<\/p>\n\n\n\n<p>\u30a2\u30a4\u30b3\u30f3\u306e\u89e3\u50cf\u5ea6\u306f\u3001\u7e26\u6a2a<strong>492px<\/strong>\u306e\u307f\u5bfe\u5fdc\u3002<\/p>\n\n\n\n<p><strong>\uff1c\u30a2\u30a4\u30b3\u30f3\u5408\u6210\u30b9\u30af\u30ea\u30d7\u30c8\uff1e<\/strong><\/p>\n\n\n\n<div class=\"upload\"><input type=\"file\" name=\"file\" id=\"file\"><\/div>\n<canvas id=\"canvas\"><\/canvas>\n<div id=\"result\"><\/div>\n<a id=\"download\"><\/a>\n\n<script>\nvar file = document.getElementById('file');\nvar canvas = document.getElementById('canvas');\nvar canvasWidth = 492;\nvar canvasHeight = 492;\nvar x =0;\n\n\/\/ Canvas\u306e\u6e96\u5099\ncanvas.width = canvasWidth;\ncanvas.height = canvasHeight;\n\nvar ctx = canvas.getContext('2d');\nctx.clearRect(0, 0, canvasWidth, canvasHeight);\nctx.fillStyle = \"#C0C0C0\";\nctx.fillRect(0, 0, canvasWidth, canvasHeight);\n\nfunction loadLocalImage(e) {\n\nfor (var i = 0, f; f = e.target.files[i]; i++) {\n    \/\/ \u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u4ee5\u5916\u306f\u51e6\u7406\u3092\u6b62\u3081\u308b\n    if(!f.type.match('image.*')) {\n        alert('\u753b\u50cf\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044');\n    return;\n    }\n    \/\/ FileReader\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u3063\u3066\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\n    var reader = new FileReader();\n        reader.onload = (function(theFile) {\n            return function(e) {\n            console.log(x);\n            canvasDraw(reader.result,x);\n            if(x==1){x=0;\n            }else{x++;\n            }\n          \n        };\n    })(f);\n    \/\/ \u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\u3092\u5b9f\u884c\n    reader.readAsDataURL(f);\n    }\n}\n\/\/ \u30d5\u30a1\u30a4\u30eb\u304c\u6307\u5b9a\u3055\u308c\u305f\u6642\u306bloadLocalImage()\u3092\u5b9f\u884c\nfile.addEventListener('change', loadLocalImage, false);\n\n\/\/ Canvas\u4e0a\u306b\u753b\u50cf\u3092\u8868\u793a\u3059\u308b\nfunction canvasDraw(imgSrc,i) {\n\n\/\/ Canvas\u4e0a\u306b\u753b\u50cf\u3092\u8868\u793a\nvar img = new Image();\nimg.src = imgSrc;\nimg.onload = function() {\n    ctx.drawImage(img, i*canvasWidth\/2, 0, canvasWidth\/2,canvasHeight,i*canvasWidth\/2, 0,canvasWidth\/2, canvasHeight);\n    \/\/ canvas\u3092\u753b\u50cf\u306b\u5909\u63db\n    var data = canvas.toDataURL();\n\n    \/\/ \u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30ea\u30f3\u30af\u3092\u751f\u6210\u3057\u3066\u51fa\u529b\n    var dlLink = document.getElementById('download');\n    dlLink.href = data;\n    dlLink.download = 'spliticon.png';\n    dlLink.innerText = '\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9';\n    document.getElementById('result').appendChild(dlLink);\n};\n}\n<\/script>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>\n&lt;div class=&quot;upload&quot;&gt;&lt;input type=&quot;file&quot; name=&quot;file&quot; id=&quot;file&quot;&gt;&lt;\/div&gt;\n&lt;canvas id=&quot;canvas&quot;&gt;&lt;\/canvas&gt;\n&lt;div id=&quot;result&quot;&gt;&lt;\/div&gt;\n&lt;a id=&quot;download&quot;&gt;&lt;\/a&gt;\n\n&lt;script&gt;\nvar file = document.getElementById(&#39;file&#39;);\nvar canvas = document.getElementById(&#39;canvas&#39;);\nvar canvasWidth = 492;\nvar canvasHeight = 492;\nvar x =0;\n\n\/\/ Canvas\u306e\u6e96\u5099\ncanvas.width = canvasWidth;\ncanvas.height = canvasHeight;\n\nvar ctx = canvas.getContext(&#39;2d&#39;);\nctx.clearRect(0, 0, canvasWidth, canvasHeight);\nctx.fillStyle = &quot;#C0C0C0&quot;;\nctx.fillRect(0, 0, canvasWidth, canvasHeight);\n\nfunction loadLocalImage(e) {\n\nfor (var i = 0, f; f = e.target.files[i]; i++) {\n    \/\/ \u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u4ee5\u5916\u306f\u51e6\u7406\u3092\u6b62\u3081\u308b\n    if(!f.type.match(&#39;image.*&#39;)) {\n        alert(&#39;\u753b\u50cf\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044&#39;);\n    return;\n    }\n    \/\/ FileReader\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u3063\u3066\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\n    var reader = new FileReader();\n        reader.onload = (function(theFile) {\n            return function(e) {\n            console.log(x);\n            canvasDraw(reader.result,x);\n            if(x==1){x=0;\n            }else{x++;\n            }\n          \n        };\n    })(f);\n    \/\/ \u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\u3092\u5b9f\u884c\n    reader.readAsDataURL(f);\n    }\n}\n\/\/ \u30d5\u30a1\u30a4\u30eb\u304c\u6307\u5b9a\u3055\u308c\u305f\u6642\u306bloadLocalImage()\u3092\u5b9f\u884c\nfile.addEventListener(&#39;change&#39;, loadLocalImage, false);\n\n\/\/ Canvas\u4e0a\u306b\u753b\u50cf\u3092\u8868\u793a\u3059\u308b\nfunction canvasDraw(imgSrc,i) {\n\n\/\/ Canvas\u4e0a\u306b\u753b\u50cf\u3092\u8868\u793a\nvar img = new Image();\nimg.src = imgSrc;\nimg.onload = function() {\n    ctx.drawImage(img, i*canvasWidth\/2, 0, canvasWidth\/2,canvasHeight,i*canvasWidth\/2, 0,canvasWidth\/2, canvasHeight);\n    \/\/ canvas\u3092\u753b\u50cf\u306b\u5909\u63db\n    var data = canvas.toDataURL();\n\n    \/\/ \u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30ea\u30f3\u30af\u3092\u751f\u6210\u3057\u3066\u51fa\u529b\n    var dlLink = document.getElementById(&#39;download&#39;);\n    dlLink.href = data;\n    dlLink.download = &#39;spliticon.png&#39;;\n    dlLink.innerText = &#39;\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9&#39;;\n    document.getElementById(&#39;result&#39;).appendChild(dlLink);\n};\n}\n&lt;\/script&gt;<\/code><\/pre><\/div>\n\n\n\n<p>\uff1c<strong>\u554f\u984c\u70b9\uff1e<\/strong><\/p>\n\n\n\n<p>\uff11\u56de\u306e\u8aad\u307f\u8fbc\u307f\u3067\u8907\u6570\u679a\u753b\u50cf\u3092\u51e6\u7406\u3059\u308b\u3088\u3046\u306b\u51fa\u6765\u306a\u304b\u3063\u305f\u3002\u5358\u7d14\u306b\u540c\u3058\u51e6\u7406\u30922\u56de\u7e70\u308a\u8fd4\u3059\u3068\u3044\u3046\u4e8b\u306b\u306a\u3089\u306a\u3044\u3002FileReader\u306e\u8aad\u307f\u8fbc\u307f\u95a2\u4fc2\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u51e6\u7406\u306f\u96e3\u3057\u3044\u3002<\/p>\n\n\n\n<p><strong>\uff1c\u53c2\u8003HP\uff1e<\/strong><\/p>\n\n\n\n<p>File API\u3068Canvas\u3067\u30ed\u30fc\u30ab\u30eb\u306e\u753b\u50cf\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u2192\u52a0\u5de5\u2192\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b - TIPS NOTE by TAM<br><a href=\"https:\/\/www.tam-tam.co.jp\/tipsnote\/javascript\/post13538.html\">https:\/\/www.tam-tam.co.jp\/tipsnote\/javascript\/post13538.html<\/a><\/p>\n\n\n\n<p><strong>\uff1c\u88dc\u8db3\uff1e<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/ubun2m.com\/wp-content\/uploads\/2022\/03\/IMG_7B78FD320C5A-1-576x1024.jpeg\" alt=\"\" class=\"wp-image-470\" width=\"576\" height=\"1024\" srcset=\"https:\/\/ubun2m.com\/wp-content\/uploads\/2022\/03\/IMG_7B78FD320C5A-1-576x1024.jpeg 576w, https:\/\/ubun2m.com\/wp-content\/uploads\/2022\/03\/IMG_7B78FD320C5A-1-169x300.jpeg 169w, https:\/\/ubun2m.com\/wp-content\/uploads\/2022\/03\/IMG_7B78FD320C5A-1.jpeg 750w\" sizes=\"(max-width: 576px) 100vw, 576px\" \/><figcaption>\u30b9\u30d7\u30ea\u30c3\u30c8\u7528\u306e\u30b7\u30e7\u30fc\u30c8\u30ab\u30c3\u30c8\u306f\u3001\u81ea\u4f5c\u3057\u306a\u304f\u3066\u3082\u30ae\u30e3\u30e9\u30ea\u30fc\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u51fa\u6765\u308b\u3002<\/figcaption><\/figure>\n\n\n\n<p><strong>\uff1c\u30a2\u30a4\u30b3\u30f3\u753b\u50cf\u306e\u5165\u624b\u65b9\u6cd5\uff1e<\/strong><\/p>\n\n\n\n<p>AppStore\u516c\u5f0f\u306e\u30a2\u30a4\u30b3\u30f3\u753b\u50cf\u306f\u3001<a href=\"https:\/\/ubun2m.com\/?p=177\">\u3053\u3061\u3089<\/a>\u306e\u30b7\u30e7\u30fc\u30c8\u30ab\u30c3\u30c8\u7f6e\u304d\u5834\u306b\u3042\u308b\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3067\u304d\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u66f4\u65b0\u65e5\uff1a2022\/03\/21 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[&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":702,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-344","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-3"],"acf":[],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/ubun2m.com\/wp-content\/uploads\/2022\/06\/Screenshot-2022-06-25-at-19.23.26.png","_links":{"self":[{"href":"https:\/\/ubun2m.com\/index.php?rest_route=\/wp\/v2\/posts\/344","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ubun2m.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ubun2m.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ubun2m.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ubun2m.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=344"}],"version-history":[{"count":0,"href":"https:\/\/ubun2m.com\/index.php?rest_route=\/wp\/v2\/posts\/344\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ubun2m.com\/index.php?rest_route=\/wp\/v2\/media\/702"}],"wp:attachment":[{"href":"https:\/\/ubun2m.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=344"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ubun2m.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=344"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ubun2m.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=344"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}