ransoing opened a new issue, #21512: URL: https://github.com/apache/echarts/issues/21512
### Version 6.0.0 ### Link to Minimal Reproduction https://codepen.io/ransoing/pen/pvbOLPq ### Steps to Reproduce Uncomment the `// filterMode: 'none',` line in the javascript to see the data change resolution ### Current Behavior When using a high resolution dataset and turning on `series-line.sampling`, the chart should always show full resolution data when you zoom in a sufficient amount. However, when `dataZoom.filterMode` is set to `none` or `empty`, the chart no longer performs progressive disclosure, and only shows the lowest-resolution sampled data regardless of how far you zoom in. With `filterMode: 'filter'` and `sampling: 'lttb'`, zoomed in on a high-res dataset: <img width="1372" height="483" alt="Image" src="https://github.com/user-attachments/assets/0cc9d5a9-64bf-486e-8597-5c7521f76f75"; /> The same situation as above, but with `filterMode: 'none'`: <img width="1347" height="479" alt="Image" src="https://github.com/user-attachments/assets/93f0c59e-229e-4880-be39-e1584e5a1f88"; /> ### Expected Behavior When `dataZoom.filterMode` is set to `none`, and when zoomed in enough, the chart should look the same whether or not sampling is turned on. The chart should look like below with `dataZoom.filterMode: 'none'` and `sampling: 'lttb'`: <img width="1337" height="479" alt="Image" src="https://github.com/user-attachments/assets/14fba6dd-9b89-4607-81db-866b332c14ce"; /> Instead, the chart looks like the second screenshot I posted in "Current Behavior". ### Environment ```markdown - OS: Mac OS 14.8.3 - Browser: Chrome 144 - Framework: ``` ### Any additional comments? _No response_ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
