plotly / plotly/react-plotly.js
Updating single trace of many: changing `revision` prop does not improve performance (compared to redrawing all)
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描述
Hi, I am trying to redraw only single trace in a plot of many traces (biophysical data). I tried to follow instructions in react-plotly and plotlyjs documentation. Plot is updated but I don't see any performance improvement if I change only single element of data or all data elements, if I change revision as described in following:
https://github.com/plotly/react-plotly.js/#refreshing-the-plot
https://plotly.com/javascript/plotlyjs-function-reference/#plotlyreact
Important Note: In order to use this method to plot new items in arrays under data such as x or marker.color etc, these items must either have been added immutably (i.e. the identity of the parent array must have changed) or the value of layout.datarevision must have changed.
I generate sample data 100 traces of 10000 points with:
const data = useRef([...Array(100).keys()].map( c=> (
{ x: [...Array(10000).keys()],
y: [...Array(10000).keys()].map( c=> c/10000.0 + Math.random()/5)
} ) ))
const revision = useRef(0)
Also, I change data with:
revision.current++
data.current[0].x = [...Array(100).keys()].map( v => v*100)
data.current[0].y = [...Array(100).keys()].map( c=> Math.random())
setState({...state, data:data.current, revision:revision.current})
Plot is generated using data.current for it's data prop
<Plot
data={state.data}
revision={state.revision}
...
Drawing plot containing single trace takes just a split of second, but if I had already drawn many traces and I want to redraw only single trace, it takes same time as to redraw all traces (few seconds).
Am I doing something wrong?
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调研方向
首先使用 100-trace sample 重现报告的案例,并比较更改一条 trace 与更改所有 trace 的情况。结合所引用的 react-plotly.js 和 Plotly.js 文档,检查 Plot 组件的 data 和 revision 更新路径;完成标准是确定是否支持单条 trace 重绘,并记录或修复观察到的行为。
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评估
- 技术栈
- javascript, react
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- data-visualization, frontend, performance
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- 缺陷
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- 4/5
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- 25/100