Next chart formatting stuff

[davidlrichmond]

Useful perhaps to share a roadmap. I can see line of sight to a couple of additional quick axis formatting enhancements:

• Data Boundaries: Set bounds on the chart instead of forcing minimum to 0 as it does currently, or lock to minimum of data set. This could be a new optional tuple parameter (min, max) on the Scale class.
• Axis Description: Paint any arbitrary descriptive string on each axis ("Revenue", "Month"). This feature could also go as an optional parameter on Scale.

There's one IMO critical formatting feature I am not sure how to build myself:

• Legend Support: The example docs mention "automatic legend generation from color mappings" but this is not implemented that I could find. I haven't researched out how e.g. ggplot does this but there's questions around descriptive data labels (vs. lowercase/camelcase/underscored field names) and where to pass those labels, as well as graphical presentational aspects (size and positioning of legend, especially across screen sizes, border styles).

[rudi-q]

Hey @davidlrichmond 👋
Thanks for opening this.

Data Boundaries: The forced min=0 is annoying, and your (min, max) tuple idea makes sense. Should be a quick fix.
Axis Labels: Yeah, definitely needed. Pretty straightforward to add.
Legend Support: You're right to call this out. The docs mention automatic legend generation, but it's not implemented yet.
Legend is the trickiest one here. positioning, responsive behavior, mapping from field names to readable labels, etc. There are some design decisions to make around how the API should work.

I'm thinking tackle the first two quickly since they're straightforward, then figure out the legend approach. If you want to take a shot at either of the first two, I'm happy to review.

For the legend, I'd like to think through the API design a bit more first.

Appreciate you actually using this thing and calling out what's missing.
Thank you for your contributions so far and raising this 🙏 @davidlrichmond

[davidlrichmond]

Yes, sorry for any confusion, I meant to raise my hand to take on the data bounds and axis labels!

[rudi-q]

That's awesome! Really appreciate you jumping in on these.
Please feel free to go ahead 🙂