{"id":3813,"date":"2020-01-13T09:35:04","date_gmt":"2020-01-13T00:35:04","guid":{"rendered":"https:\/\/nantoka.filmm.info\/blog\/?p=3813"},"modified":"2020-01-13T09:42:31","modified_gmt":"2020-01-13T00:42:31","slug":"%e8%a4%87%e6%95%b0%e3%81%aecanvas%e3%82%92%e3%83%ac%e3%82%b9%e3%83%9d%e3%83%b3%e3%82%b7%e3%83%96%e3%81%ab%e9%85%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/nantoka.filmm.info\/blog\/?p=3813","title":{"rendered":"\u8907\u6570\u306ecanvas\u3092\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306b\u914d\u7f6e"},"content":{"rendered":"

\u5c0f\u3055\u3044canvas\u3092\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306b\u914d\u7f6e\u3059\u308b\u30c6\u30b9\u30c8<\/p>\n

\u3053\u3093\u306a\u306e\u3067\u304d\u308b\uff0e\u4e00\u8272\u305a\u3064canvas\u4f5c\u6210<\/p>\n

\"\"<\/a><\/p>\n

\u8981bootstrap4\uff0cjQuery<\/strong><\/p>\n

\uff08\u4efb\u610f\uff09<\/p>\n

chroma.js\u30e9\u30a4\u30d6\u30e9\u30ea\u8aad\u307f\u8fbc\u307f<\/p>\n

    <!--chroma.js\u30e9\u30a4\u30d6\u30e9\u30ea\u8aad\u307f\u8fbc\u307f-->\r\n    <script src=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/chroma-js\/2.1.0\/chroma.min.js\"><\/script><\/pre>\n
\u30b9\u30bf\u30a4\u30eb\u30b7\u30fc\u30c8\u4f5c\u6210\uff08\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u7528\uff09<\/p>\n
    <style>\r\n    .wrapper{\r\n  width: 100%;\r\n  height: 100%;\r\n}<\/style><\/pre>\n
 <\/p>\n
canvas\u306e\u5916\u5074\u306eDIV\u4f5c\u6210\u3000wrapper\u30af\u30e9\u30b9\u306e\u30b5\u30a4\u30ba<\/p>\n
<div id=\"scales\" class=\"wrapper\"><\/div><\/pre>\n
 <\/p>\n
JS\u3067canvas\u3092\u8907\u6570\u4f5c\u6210<\/p>\n
<script>\r\n    \r\n    \/\/chroma.js\u4f7f\u7528\r\nvar scales = document.getElementById('scales');\r\nvar color_list = chroma.scale(['blue', 'crimson']);\/\/blue\u304b\u3089crimson\u3078\u306e\u8272\u5909\u66f4\r\nvar divide = 5;\/\/\u8272\u5909\u66f4\u306e\u5206\u5272\u6570\r\nvar i;\r\n\r\n    \/\/for\u3067canvas\u3092\u8907\u6570\u4f5c\u6210\r\nfor (i = 1; i <=divide; i++) {\r\n    \r\n    \/\/canvas\u3092\u6b21\u3005\u4f5c\u6210\r\n    var mem_canvas;\r\n    mem_canvas = document.createElement(\"canvas\");\r\n    mem_canvas.setAttribute(\"id\",\"scaleCanvas\" + i);\/\/ID\u5909\u66f4\u3057\u8907\u6570\u4f5c\u6210\u53ef\u80fd\u306b\r\n    \r\n    \/\/jQuery\u3067\u3053\u306eDIV\u306e\u7e26\u6a2a\u3092\u53d6\u5f97\r\n    var w = $('.wrapper').width();\r\n    var h = $('.wrapper').height();\/\/\u672a\u4f7f\u7528\r\n    mem_canvas.width = w\/divide;\/\/canvas\u5e45\u306fwrapper\u00f7\u5206\u5272\u6570\u306b\u3059\u308b\r\n    mem_canvas.height = w\/divide;\/\/\u6b63\u65b9\u5f62\u306b\u3059\u308b\r\n    \/\/\u4f5c\u6210\u3059\u308bcanvas\u306eCSS\u8a2d\u5b9a\r\n    mem_canvas.style.width = (100\/divide) + '%';\/\/canvas\u306b\u72ec\u81ea\u306eCSS\u3092\u5165\u308c\u308b\r\n    mem_canvas.style.height = 'auto';\/\/\u9ad8\u3055\u306fwrapper\u6bd4\u306b\u306f\u3067\u304d\u306a\u3044\u3093\u3067auto\u306b\u3059\u308b    \r\n    \/\/\u8272\u3092\u5857\u308b\r\n    var context = mem_canvas.getContext('2d');\r\n    context.fillStyle = color_list(i\/divide);\/\/\r\n    context.fillRect(0, 0, w\/divide, w\/divide);\/\/\u6b63\u65b9\u5f62\u306b\u5857\u308a\u3064\u3076\u3059\r\n    \/\/HTML\u306b\u8ffd\u52a0\r\n    scales.appendChild(mem_canvas);\/\/\u89aa\u306eDIV scales\u306b\u5b50\u3068\u3057\u3066\u8ffd\u52a0\r\n}\r\n    \r\n    <\/script><\/pre>\n
 <\/p>\n
\u53c2\u8003<\/p>\n
http:\/\/shiru-web.com\/2017\/04\/20\/01-24\/<\/a><\/p>\n
https:\/\/qiita.com\/ShinyaOkazawa\/items\/9e662bf2121548f79d5f<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u5c0f\u3055\u3044canvas\u3092\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306b\u914d\u7f6e\u3059\u308b\u30c6\u30b9\u30c8 \u3053\u3093\u306a\u306e\u3067\u304d\u308b\uff0e\u4e00\u8272\u305a\u3064canvas\u4f5c\u6210 \u8981bootstrap4\uff0cjQuery \uff08\u4efb\u610f\uff09 chroma.js\u30e9\u30a4\u30d6\u30e9\u30ea\u8aad\u307f\u8fbc\u307f <!–chroma.js\u30e9\u30a4\u30d6\u30e9\u30ea … \u7d9a\u304d\u3092\u8aad\u3080 \u8907\u6570\u306ecanvas\u3092\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306b\u914d\u7f6e<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,11],"tags":[],"class_list":["post-3813","post","type-post","status-publish","format-standard","hentry","category-html5","category-javascript"],"_links":{"self":[{"href":"https:\/\/nantoka.filmm.info\/blog\/index.php?rest_route=\/wp\/v2\/posts\/3813","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nantoka.filmm.info\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nantoka.filmm.info\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nantoka.filmm.info\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nantoka.filmm.info\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3813"}],"version-history":[{"count":7,"href":"https:\/\/nantoka.filmm.info\/blog\/index.php?rest_route=\/wp\/v2\/posts\/3813\/revisions"}],"predecessor-version":[{"id":3821,"href":"https:\/\/nantoka.filmm.info\/blog\/index.php?rest_route=\/wp\/v2\/posts\/3813\/revisions\/3821"}],"wp:attachment":[{"href":"https:\/\/nantoka.filmm.info\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3813"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nantoka.filmm.info\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3813"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nantoka.filmm.info\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}