xxxx-p commented on issue #21504:
URL: https://github.com/apache/echarts/issues/21504#issuecomment-3877030711
> This is a known behavior("issue"), but it was intentionally designed this
way from the outset — likely for performance reasons, the background box will
not be rendered if no explicit backgroundColor is specified.
>
> As a workaround, you can explicitly set a transparent color (e.g.,
`'transparent'` or `'rgba(0,0,0,0)'`).
Actually, my initial usage scenario was when the text length of the label
axis was relatively long, and I wanted to set the height to make the plugin
automatically wrap according to the line. After reading the document, I
expected that by setting axisLabel.overflow to 'truncate' and axisLabel.Height,
the graphic would automatically wrap according to the set height, and
automatically truncate when it exceeded the height. However, in reality, the
display of text seems to have nothing to do with axisLabel.Height. Height only
affects the height of the rectangle behind the text label, and is not related
to the height of the text?
<img width="1567" height="683" alt="Image"
src="https://github.com/user-attachments/assets/79627714-6afe-47f3-a7c0-aafa2d736e8b";
/>
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