[Bug] On graph series when use emphasis focus: 'adjacency' highlighting by category works wrong

[stnickolas]

Version

5.3.3

Link to Minimal Reproduction

https://echarts.apache.org/examples/en/editor.html?c=graph-label-overlap

Steps to Reproduce

1. set emphasis options to use focus: 'adjacency'
2. point mouse over different categories

Current Behavior

some nodes that does not belong to category are highlighted

Expected Behavior

only nodes that belong to category are highlighted

Environment

- OS:Windows
- Browser:any

Any additional comments?

No response

[Ovilia]

Cannot reproduce from my side. Can you make a screenshot?

[stnickolas]

Sure, as you can see, my mouse is hovering category "C", but it is nodes that belongs to "A" and "B" are highlighted.

[Ovilia]

OK. This is a bug. But it's hard to say what's the expected result when hovering a legend item with emphasis.focus: 'adjacency'. Because when 'adjacency' is relative to a single node rather than a group of data.

But for sure, the legend has some bugs with hovering in this situation.

[stnickolas]

I suggest to use 'adjucency' for nodes as usual, but for legend just ignore that and highlight only related to category nodes

[Ovilia]

Yes, I think this makes sense.