Version
6.1.0
Link to Minimal Reproduction
https://codesandbox.io/p/sandbox/tender-merkle-ymcjr9?file=%2Fsrc%2Findex.js%3A4%2C51
Steps to Reproduce
Steps to Reproduce
Open the ECharts examples editor: https://echarts.apache.org/examples/en/editor.html
Paste the minimal reproduction snippet.
Ensure the page is running ECharts 6.1.0.
Keep useDirtyRect: true.
Hover/move the mouse across the chart so the tooltip axis pointer updates.
Current Behavior
When hovering the chart, parts of the dense line series visually disappear or render as broken/dashed segments. The underlying data is still present, and the tooltip continues to resolve values, but the canvas repaint appears corrupted around axis-pointer updates.
The issue disappears when either:
useDirtyRect is set to false
the tooltip axis pointer is disabled
Expected Behavior
Hovering should only update the tooltip and axis pointer. The line series should remain visually continuous and unchanged while the pointer moves.
Environment
- OS: OSX
- Browser: ALL
- Framework: ANgular
Any additional comments?
This appears to be a regression in ECharts 6.1.0. The same chart behavior worked with ECharts 6.0.0.
The affected setup uses:
canvas renderer
useDirtyRect: true
dense line series
showSymbol: false
progressive rendering
visualMap piecewise coloring
tooltip with trigger: 'axis'
tooltip axisPointer.type: 'line'
For our app, disabling dirty rect hurts performance, and disabling the axis pointer removes useful chart feedback, so neither is a good long-term workaround.
Version
6.1.0
Link to Minimal Reproduction
https://codesandbox.io/p/sandbox/tender-merkle-ymcjr9?file=%2Fsrc%2Findex.js%3A4%2C51
Steps to Reproduce
Steps to Reproduce
Open the ECharts examples editor: https://echarts.apache.org/examples/en/editor.html
Paste the minimal reproduction snippet.
Ensure the page is running ECharts 6.1.0.
Keep useDirtyRect: true.
Hover/move the mouse across the chart so the tooltip axis pointer updates.
Current Behavior
When hovering the chart, parts of the dense line series visually disappear or render as broken/dashed segments. The underlying data is still present, and the tooltip continues to resolve values, but the canvas repaint appears corrupted around axis-pointer updates.
The issue disappears when either:
useDirtyRect is set to false
the tooltip axis pointer is disabled
Expected Behavior
Hovering should only update the tooltip and axis pointer. The line series should remain visually continuous and unchanged while the pointer moves.
Environment
Any additional comments?
This appears to be a regression in ECharts 6.1.0. The same chart behavior worked with ECharts 6.0.0.
The affected setup uses:
canvas renderer
useDirtyRect: true
dense line series
showSymbol: false
progressive rendering
visualMap piecewise coloring
tooltip with trigger: 'axis'
tooltip axisPointer.type: 'line'
For our app, disabling dirty rect hurts performance, and disabling the axis pointer removes useful chart feedback, so neither is a good long-term workaround.