hl2232 opened a new issue, #21292:
URL: https://github.com/apache/echarts/issues/21292
### Version
4.2.1
### Link to Minimal Reproduction
option: { tooltip: { trigger: "axis", },
legend: { data: ["BDS", "GPS"], selected: {
BDS: true, // 初始状态，BDS系列可见 GPS: true, // 初始状态，GPS系列可见 },
}, toolbox: { show: true, feature: {
dataZoom: { yAxisIndex: "none", },
restore: {}, saveAsImage: {}, myFull: {
show: true, title: "全屏查看", icon:
"path://M432.45,595.444c0,2.177-4.661,6.82-11.305,6.82c-6.475,0-11.306-4.567-11.306-6.82s4.852-6.812,11.306-6.812C427.841,588.632,432.452,593.191,432.45,595.444L432.45,595.444z
M421.155,589.876c-3.009,0-5.448,2.495-5.448,5.572s2.439,5.572,5.448,5.572c3.01,0,5.449-2.495,5.449-5.572C426.604,592.371,424.165,589.876,421.155,589.876L421.155,589.876z
M421.146,591.891c-1.916,0-3.47,1.589-3.47,3.549c0,1.959,1.554,3.548,3.47,3.54
8s3.469-1.589,3.469-3.548C424.614,593.479,423.062,591.891,421.146,591.891L421.146,591.891zM421.146,591.891",
onclick: (e) => { const element =
document.getElementById("myChart"); if
(element.requestFullScreen) { // HTML W3C 提议
element.requestFullScreen(); } else if
(element.msRequestFullscreen) { // IE11
element.msRequestFullScreen(); } else if
(element.webkitRequestFullScreen) { // Webkit (works in
Safari5.1 and Chrome 15) element.webkitRequestFullScreen();
} else if (element.mozRequestFullScreen) { //
Firefox (works in nightly) element.mozRequestFullScreen();
} // 退出全屏 if
(element.requestFullScreen) { document.exitFullscreen();
} else if (element.msReques
tFullScreen) { document.msExitFullscreen();
} else if (element.webkitRequestFullScreen) {
document.webkitCancelFullScreen(); } else if
(element.mozRequestFullScreen) {
document.mozCancelFullScreen(); } },
}, }, },
### Steps to Reproduce
Enable dataZoom (area zoom or slider zoom)
Zoom into different areas of the chart multiple times
Observe the curve behavior during zoom operations
### Current Behavior
<img width="1549" height="337" alt="Image"
src="https://github.com/user-attachments/assets/2081a909-3690-4f3e-bb18-5e69cd85e019";
/>
Smooth line curves show abnormal/exaggerated arcs after zooming
The curves don't follow the actual data points properly
The issue occurs randomly and cannot be consistently reproduced
Same data produces different curve shapes in different zoom ranges
Refreshing the page fixes the issue temporarily
### Expected Behavior
<img width="1118" height="310" alt="Image"
src="https://github.com/user-attachments/assets/08f483d0-4766-4385-ab29-effd331cb730";
/>
Smooth curves should maintain proper shape during zoom operations
Curves should always follow logical paths between data points
Zooming should not affect the mathematical relationship between points
### Environment
```markdown
- OS:Windows
- Browser:Chrome
- Framework:
```
### Any additional comments?
_No response_
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