alxnddr opened a new issue, #20021: URL: https://github.com/apache/echarts/issues/20021
### Version 5.5.0 ### Link to Minimal Reproduction https://echarts.apache.org/examples/en/editor.html?c=line-simple&code=PYBwLglsB2AEC8sDeAoWsAeBBDEDOAXMmurGAJ4gCmRA5AMYCGYVA5sAE7m0A0J6AE2aMiAbVoBZGL1i0AKgFcqM2gHUqAlXIAWClQDEOEFQGVmphdFoBdEgF8-6cjnxFUpMpRqyAbowA2SrT2jrB4VEZUhLCi_MQegsJi0Ar-_jywAKwADBkAbLmwKWkZAOyFAByFxf7WoR4U1HT-ENDK9aSMHFSMJhT-3kiwoIz0EBRE2QB0AEywDnHoeCwgdFTQmh3o9DBt9GAAcqn-0WAcSnF2JLZ2ANxAA ### Steps to Reproduce 1. Have a line/area cartesian chart where first and last data points are null ([example](https://echarts.apache.org/examples/en/editor.html?c=line-simple&code=PYBwLglsB2AEC8sDeAoWsAeBBDEDOAXMmurGAJ4gCmRA5AMYCGYVA5sAE7m0A0J6AE2aMiAbVoBZGL1i0AKgFcqM2gHUqAlXIAWClQDEOEFQGVmphdFoBdEgF8-6cjnxFUpMpRqyAbowA2SrT2jrB4VEZUhLCi_MQegsJi0Ar-_jywAKwADBkAbLmwKWkZAOyFAByFxf7WoR4U1HT-ENDK9aSMHFSMJhT-3kiwoIz0EBRE2QB0AEywDnHoeCwgdFTQmh3o9DBt9GAAcqn-0WAcSnF2JLZ2ANxAA)) 2. Set `areaStyle: {}` 3. Set `step: end` and `connectNulls: true` props 4. The chart does not appear correctly ### Current Behavior Area polygon is incorrect, the bottom of it is shifted: <img width="1274" alt="Screenshot 2024-06-11 at 3 48 40 PM" src="https://github.com/apache/echarts/assets/14301985/b50a2690-0c6f-4310-b607-38d6a088fbf2";> ### Expected Behavior The area polygon should be correct ### Environment ```markdown - OS: macos - Browser: chrome - Framework: n/a ``` ### Any additional comments? There is a related problem when `connectNulls` is false: <img width="1268" alt="Screenshot 2024-06-11 at 3 48 19 PM copy" src="https://github.com/apache/echarts/assets/14301985/3a0bdfef-5141-4d08-8f37-6711869eee3e";> -- 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]
