[Bug] The algorithm problem of the proportion of bar stack when the y-axis type is log

[leleccccc]

Version

5.4.3

Link to Minimal Reproduction

Official Editor

Steps to Reproduce

option = { xAxis: { type: 'category', data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'] }, tooltip: { trigger: 'axis' }, yAxis: { type: 'log' }, series: [ { data: [150, 230, 224, 218, 136, 148, 260], type: 'line', stack: 'lineData' }, { data: [75, 115, 112, 109, 68, 74, 130], type: 'bar', stack: 'barData' }, { data: [75, 115, 112, 109, 68, 74, 130], type: 'bar', stack: 'barData' } ] };

Current Behavior

Expected Behavior

In this case, I hope that the stacking ratio of their bars is evenly divided because my data is set to half

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response

[Ovilia]

Using stack bars with log axis is misleading so I would say this is not within the boundary of design.

[helgasoft]

duplicate of #18330, #17960

[Ovilia]

It seems many developers have related requirement. @helgasoft What do you think, should we support this?

[helgasoft]

Well, it is already supported - bars are stacked.
But the axis is nonlinear, so the proportions of stacked bars will always be incorrect.
Therefore the concept of using stacked bars in a log chart does not make sense as I explained in #18330.

This demo shows it again - first entry in each group has correct (measurable) size, The total height for each group is correct also, But everything in-between is "fake size".
The solution would be to use regular non-stacked bars, click on the stack icon to see the difference.

[leleccccc]

@helgasoft From the perspective of y-axis values, the height of the column is correct, but from the comparison between the incoming data, the height of the column is incorrect. Can parameters be passed in to control the reference for column height when stacking with y-axis as a logarithm? For most users, they may feel that the second option is easier to understand, and they do not pay attention to the corresponding relationship between column height and y-axis values at this time

[Ovilia]

@leleccccc As you stated, it's conflicting with the height and the stacked value. Even if there is an option for the developer, it may be misleading to users. So I would suggest not using stacked bars with log axis anyway.