skortchmark9 commented on issue #9232: Use OffScreenCanvas API for big data live charts URL: https://github.com/apache/incubator-echarts/issues/9232#issuecomment-461995134 I was able to get drawing working in a web worker using this feature: ```javascript // main.js const offscreen = elt.transferControlToOffscreen(); const worker = new Worker('worker.js'); worker.postMessage({ canvas: offscreen }, [offscreen]); ``` ```javascript // worker.js onmessage = function(evt) { const canvas = evt.data.canvas; echarts.setCanvasCreator(function () { return new OffscreenCanvas(32, 32); }); const plot = echarts.init(canvas); plot.setOption(...); } ``` Certain features didn't work, but it's a good start.
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