`series-lines` -- when I try to appendData to it, the page freezes a bit

[zifer123]

Version

4.9.0

Reproduction link

https://echarts.apache.org/examples/zh/editor.html?c=lines-bmap-effect

Steps to reproduce

1、myOptions is as follows series: [{ type: 'lines', coordinateSystem: 'bmap', polyline: true, data: busLines, silent: true, lineStyle: { // color: '#c23531', // color: 'rgb(200, 35, 45)', opacity: 0.2, width: 1 }, progressiveThreshold: 500, progressive: 200 }, { type: 'lines', coordinateSystem: 'bmap', polyline: true, data: busLines, lineStyle: { width: 0 }, effect: { constantSpeed: 20, show: true, trailLength: 0.1, symbolSize: 1.5, loop: false }, zlevel: 1 }]

set options's loop false

2、try to add data every 10 seconds setInterval(() => { myChart.appendData({ seriesIndex: 1, data: busLines.slice(0, 50) }) }, 10000)

What is expected?

I hope to, when i appendData, the page won't freeze a bit, and and it's smooth, or there are other API that allow me to do this funtion?

What is actually happening?

When add data, the page is not stuck

---

My English is so poor, dont't mind, thank you!

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[pissang]

I think it's a typical performance issue when data is quite large. I'm afraid the only way to solve this currently is to reduce the amount of data.

[zifer123]

I think it's a typical performance issue when data is quite large. I'm afraid the only way to solve this currently is to reduce the amount of data.

Okay, that seems to be the only way, thank you for your answer

[github-actions[bot]]

This issue has been automatically marked as stale because it did not have recent activity. It will be closed in 7 days if no further activity occurs. If you wish not to mark it as stale, please leave a comment in this issue.

[github-actions[bot]]

This issue has been automatically closed because it did not have recent activity. If this remains to be a problem with the latest version of Apache ECharts, please open a new issue and link this to it. Thanks!