[GitHub] [incubator-echarts] plainheart commented on issue #13891: getDataURL not working on tree

[GitBox <gi...@apache.org>]

plainheart commented on issue #13891:
URL: https://github.com/apache/incubator-echarts/issues/13891#issuecomment-751902438


   It shouldn't call `getDataURL` immediately after `setOption` for the rendering is asynchronized.
   Instead, we should listen to the [`finished`](https://echarts.apache.org/next/en/api.html#events.finished) event like this,
   ```js
   myChart.on('finished', function() {
       img.src = myChart.getDataURL();
   });
   ```


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