ZhengRui commented on issue #17015:
URL: https://github.com/apache/echarts/issues/17015#issuecomment-1148506898
我的问题是获取brush区域里面点的数据，这个区域的大小本身是可以通过brush的area里面的coordRange得到。关于你的问题，在点击折线图时，你可以监听鼠标事件，鼠标事件的params里面是有你要的数据的。
chart.on('click', 'series', (params) => console.log(params.data)
ZhengRui commented on issue #17015:
URL: https://github.com/apache/echarts/issues/17015#issuecomment-1148423647
我现在数据量不是很大，就是几个map reduce 的操作，不知道echarts的transform实现是不是优化过的
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ZhengRui commented on issue #17015:
URL: https://github.com/apache/echarts/issues/17015#issuecomment-1148401788
我最后没办法，只好自己实现transform的逻辑显式生成了dataset插入到option.dataset里面
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ZhengRui commented on issue #17015:
URL: https://github.com/apache/echarts/issues/17015#issuecomment-1146629950
same question here
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