{"id":1659,"date":"2024-11-10T12:17:04","date_gmt":"2024-11-10T04:17:04","guid":{"rendered":"https:\/\/fwq.ai\/blog\/1659\/"},"modified":"2024-11-10T12:17:04","modified_gmt":"2024-11-10T04:17:04","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-canvas-%e5%af%bc%e5%87%ba%e9%ab%98%e6%b8%85%e6%99%b0%e5%ba%a6%e8%a7%86%e9%a2%91%ef%bc%8c%e5%b0%86-echarts-%e5%8a%a8%e6%80%81%e5%9b%be%e8%a1%a8%e8%bd%ac%e5%8c%96","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/1659\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 Canvas \u5bfc\u51fa\u9ad8\u6e05\u6670\u5ea6\u89c6\u9891\uff0c\u5c06 Echarts \u52a8\u6001\u56fe\u8868\u8f6c\u5316\u4e3a\u89c6\u9891\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173052774373323.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u4f7f\u7528 Canvas \u5bfc\u51fa\u9ad8\u6e05\u6670\u5ea6\u89c6\u9891\uff0c\u5c06 Echarts \u52a8\u6001\u56fe\u8868\u8f6c\u5316\u4e3a\u89c6\u9891\uff1f\u63d2\u56fe\" alt=\"\u5982\u4f55\u4f7f\u7528 Canvas \u5bfc\u51fa\u9ad8\u6e05\u6670\u5ea6\u89c6\u9891\uff0c\u5c06 Echarts \u52a8\u6001\u56fe\u8868\u8f6c\u5316\u4e3a\u89c6\u9891\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528 canvas \u5bfc\u51fa\u9ad8\u6e05\u6670\u5ea6\u89c6\u9891<\/strong><\/p>\n<p>\u60a8\u5e0c\u671b\u5c06 echarts \u751f\u6210\u7684\u52a8\u6001\u56fe\u8868\u8f6c\u5316\u4e3a\u89c6\u9891\uff0c\u5e76\u4e14\u63d0\u9ad8\u6e05\u6670\u5ea6\u3002\u53ef\u4ee5\u4f7f\u7528\u7b2c\u4e09\u65b9\u63d2\u4ef6\u6765\u5b9e\u73b0 canvas \u5bfc\u51fa\u89c6\u9891\u7684\u529f\u80fd\u3002<\/p>\n<p><strong>\u5bfc\u51fa\u4e3a\u89c6\u9891<\/strong><\/p>\n<ul>\n<li> <strong>recordrtc.js<\/strong>\uff1a\u4f7f\u7528 html2canvas\uff0c\u652f\u6301\u5bfc\u51fa mp4 \u683c\u5f0f\u7684\u89c6\u9891\u3002<\/li>\n<\/ul>\n<pre>let recordrtc = recordrtc($canvas, {\n    type: 'canvas'\n});\n\/\/ \u5f00\u59cb\u5f55\u5236\uff1a\nrecordrtc.startrecording();\n\/\/ \u505c\u6b62\u5f55\u5236\uff08\u5355\u4f4d\uff1a\u6beb\u79d2\uff09\uff1a\nrecordrtc.stoprecording(function(videourl) {\n    console.log(videourl);\n});<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ul>\n<li><strong>\u5bfc\u51fa\u4e3a gif<\/strong><\/li>\n<li> <strong>gif.js<\/strong>\uff1a\u9010\u5e27\u5f55\u5236 canvas\uff0c\u652f\u6301\u5bfc\u51fa gif \u683c\u5f0f\u7684\u89c6\u9891\u3002<\/li>\n<\/ul>\n<pre>var gif = new GIF({\n    quality: 10,\n    workerScript: '.\/js\/gif.worker.js'\n});\n\ngif.on('finished', function(blob) {\n    saveAs(blob, \"test.gif\");\n});\n\n\/\/ \u4e00\u5e27\u4e00\u5e27\u5f55\u5236\uff1a\nfunction loop() {\n    requestAnimationFrame(function() {\n        gif.addFrame($canvas, {delay: 100});\n        if (Date.now() - start &gt;= time) {\n            gif.render();\n        } else {\n            loop();\n        }\n    });\n}<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528 Canvas \u5bfc\u51fa\u9ad8\u6e05\u6670\u5ea6\u89c6\u9891\uff0c\u5c06 Echarts \u52a8\u6001\u56fe\u8868\u8f6c\u5316\u4e3a\u89c6\u9891\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528 canvas \u5bfc\u51fa\u9ad8\u6e05\u6670\u5ea6\u89c6\u9891 \u60a8\u5e0c\u671b\u5c06 echarts \u751f\u6210\u7684\u52a8\u6001\u56fe\u8868\u8f6c\u5316\u4e3a\u89c6\u9891\uff0c\u5e76\u4e14\u63d0\u9ad8\u6e05\u6670\u5ea6\u3002\u53ef\u4ee5\u4f7f\u7528\u7b2c\u4e09\u65b9\u63d2\u4ef6\u6765\u5b9e\u73b0 canvas \u5bfc\u51fa\u89c6\u9891\u7684\u529f\u80fd\u3002 \u5bfc\u51fa\u4e3a\u89c6\u9891 recordrtc.js\uff1a\u4f7f\u7528 html2canvas\uff0c\u652f\u6301\u5bfc\u51fa mp4 \u683c\u5f0f\u7684\u89c6\u9891\u3002 let recordrtc = recordrtc($canvas, { type: &#8216;canvas&#8217; }); \/\/ \u5f00\u59cb\u5f55\u5236\uff1a recordrtc.startrecording(); \/\/ \u505c\u6b62\u5f55\u5236\uff08\u5355\u4f4d\uff1a\u6beb\u79d2\uff09\uff1a recordrtc.stoprecording(function(videourl) { console.log(videourl); }); \u767b\u5f55\u540e\u590d\u5236 \u5bfc\u51fa\u4e3a gif gif.js\uff1a\u9010\u5e27\u5f55\u5236 canvas\uff0c\u652f\u6301\u5bfc\u51fa gif \u683c\u5f0f\u7684\u89c6\u9891\u3002 var gif = new GIF({ quality: 10, workerScript: &#8216;.\/js\/gif.worker.js&#8217; }); gif.on(&#8216;finished&#8217;, function(blob) { saveAs(blob, &#8220;test.gif&#8221;); }); \/\/ \u4e00\u5e27\u4e00\u5e27\u5f55\u5236\uff1a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-1659","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/1659","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=1659"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/1659\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=1659"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=1659"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=1659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}