rrekapalli opened a new issue #13651: URL: https://github.com/apache/incubator-echarts/issues/13651
### Version 4.9.0 ### Reproduction link [https://echarts.apache.org/examples/en/editor.html?c=calendar-heatmap](https://echarts.apache.org/examples/en/editor.html?c=calendar-heatmap) ### Steps to reproduce You can use the official demo for the calendar heat-map to reproduce/try to generate the issue: When, we use a piecewise visual-map display multi-year heat map with calendar coordinates to show multiple years from the dataset, it's taking the values as numerical values but not as years. The visual map that is used is as follows: visualMap: { type: 'piecewise', orient: 'horizontal', left: 'center', top: 230, textStyle: { color: '#000' }, categories: ["2015-01-01", "2016-01-01", "2017-01-01"] }, ### What is expected? It should allow the user to have a piecewise visual-map to select individual years. Calendar Heat Map ### What is actually happening? As stated above, it's actually taking the year values as numerical values. <!-- This issue is generated by echarts-issue-helper. DO NOT REMOVE --> <!-- This issue is in English. DO NOT REMOVE --> ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@echarts.apache.org For additional commands, e-mail: commits-h...@echarts.apache.org