fukai007 opened a new issue #15135:
URL: https://github.com/apache/echarts/issues/15135
### Version
5.1.2
### Steps to reproduce
目的: 使用离屏渲染生成图片(不想把图表显示在页面,想显示导出的base64图片[myChart.getDataURL()])
### What is expected?
列表有很多数据,不想都是用echarts,而是用一个echarts实例循环导出图片后再加载图片(内容大小不变只是数据发生变化)
### What is actually happening?
var off_ce = document.createElement("canvas");
off_ce.classList.add("chart");
off_ce.style = "width:50px;height:50px;";
window.off_ce = off_ce;
var myChart = echarts.init(off_ce);
myChart.setOption(this.option);
console.log("sssss", myChart.getDataURL());
window.imgvc.src = myChart.getDataURL();
导出不成功
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