Setting Legend Markers using Paths

[febkor]

Thanks for the great library :)

I'm currently using uPlot to draw plots with custom markers, e.g. triangles, squares, stars etc, like done in this demo. It would be useful for users to see these markers in the legend.

If I'm not missing something, it seems the current uPlot api does not allow setting a canvas Path in the legend and relies primarily on CSS for styling the legend markers.

Would it be possible to add something like this to the API?

Alternatives I'm aware of:

• maintaining my own legend div (like Grafana)
• setting the u-marker div once uPlot has finished drawing
• using emoji shapes in the u-label div
• drawing these markers using CSS

These options all seem like (possibly hacky) workarounds. Are there any other reasonable options?

[leeoniya]

i think you've listed all the options :)

option 1 is probably not very good if all you need it to customize markers.

there's an issue open for this, but it's kinda backlogged: https://github.com/leeoniya/uPlot/issues/431