[GitHub] [echarts] jiawulin001 commented on issue #16940: [Bug] ’width‘ is not work in axis‘s nameTextStyle

[GitBox <gi...@apache.org>]

jiawulin001 commented on issue #16940:
URL: https://github.com/apache/echarts/issues/16940#issuecomment-1108227649

   ### Problem locating
   This bug is caused because Echarts doesn't seem to be interested in receiving `nameTextStyle` at all.
   Check the class `axisName` below
   https://github.com/apache/echarts/blob/3961cefc0329cfa8782602fc2aea46cc76c3f50e/src/component/axis/AxisBuilder.ts#L367
   And you will find `nameTextStyle.width` is never referred to. Besides the `maxWidth`, the important width parameter passed in to text element maker, gets its value from three variables.
   https://github.com/apache/echarts/blob/3961cefc0329cfa8782602fc2aea46cc76c3f50e/src/component/axis/AxisBuilder.ts#L425-L427
   The first two `opt.nameTruncateMaxWidth`, `truncateOpt.maxWidth` should come from user input but they are nowhere to be found in documentation. While the last one, `axisNameAvailableWidth` is derived from `opt.axisNameAvailableWidth`, another misterious variable. After all, none of them has anything to do with `nameTextStyle.width`. That's why `nameTextStyle.width` would never work. 
   
   ### Solution
   It's an easy fix, just let `axisNameAvailableWidth` get `nameTextStyle.width` if it has no value.
   **Submitting a PR to fix this**


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