Visual Map not rendering line color (but it IS rendering correct color in label)

[Daemach]

Version

4.9.0

Reproduction link

https://codepen.io/daemach/pen/MWegRvO

Steps to reproduce

See code pen.

What is expected?

I expect the line color to change based on values in dimension 2 of series 0

What is actually happening?

Line color does not change, although the LABEL color is being mapped correctly according to visual map rules

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It doesn't work in the 5.0.0 alpha 2 release either.

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[quillblue]

Took a look as requested in mail list. Seems that line will only accept visual map on value dimension.
But I feel a bit weird on why color on line need to be mapped to fields not related to value it self. Most cases of line color visual map is configured on simple and continous value range (just as https://echarts.apache.org/examples/en/editor.html?c=line-aqi) and I feel sorry to say that I can't be aware of bothering of current limitation.

[Daemach]

That is unfortunate. And it doesn't explain why the label color is correct although the line color isn't. Why can't you allow mapping the visual map on a different dimension just like the label? My situation is this: I am using this to map values for growing plants indoors. During the times when the lights are on, certain values are acceptable. When the lights are off, those same values are unacceptable. Range 1 is 6AM=>6PM Range 2 is 6PM=>6AM. At 9AM, when the lights are on, a value of 1200ppm for CO2 level is acceptable and the line should be green. At 9PM, when the lights are off, 1200ppm is not acceptable and the line should be red. I understand that the visual map can only map within 1 range, not 2, so I calculated separate values and put them in a separate dimension. The label colors are working. The line color is not.

…

On Fri, Oct 16, 2020 at 12:33 AM Quill Qian ***@***.***> wrote: Took a look as requested in mail list. Seems that line will only accept visual map on value dimension. But I feel a bit weird on why color on line need to be mapped to fields not related to value it self. Most cases of line color visual map is configured on simple and continous value range (just as https://echarts.apache.org/examples/en/editor.html?c=line-aqi) and I feel sorry to say that I can't be aware of bothering of current limitation. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#13393 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC7Y5YPKZAONCI4D5SC3LKTSK7ZMTANCNFSM4SGK2S6Q> .

[quillblue]

@Daemach that situation seems make sense. Will try to look at the different rendering between label and line.

[Daemach]

Thank you, Quill. I really appreciate it.

…

On Sat, Oct 17, 2020 at 4:47 AM Quill Qian ***@***.***> wrote: @Daemach <https://github.com/Daemach> that situation seems make sense. Will try to look at the different rendering between label and line. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#13393 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC7Y5YIBOKBZ2NW7X3O62QTSLF75JANCNFSM4SGK2S6Q> .

[Daemach]

Were you able to make any progress with this issue?

…

On Sat, Oct 17, 2020 at 4:47 AM Quill Qian ***@***.***> wrote: @Daemach <https://github.com/Daemach> that situation seems make sense. Will try to look at the different rendering between label and line. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#13393 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC7Y5YIBOKBZ2NW7X3O62QTSLF75JANCNFSM4SGK2S6Q> .

[github-actions]

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