Create new derived store for possibly updated domain

[jnsprnw]

This is a quick draft and suggestion of how to fix #213.

Resetting $domain in createScale.js did not work as the function has no access to the domain store from the upper level.

This solution is not the most elegant, but I couldn’t find another one yet.

[mhkeller]

That seems like a pretty light-touch way to do it. Let me think on it a bit if there are any alternatives. Thanks a bunch for digging into it!

[mhkeller]

@jnsprnw How's that look now?

[techniq]

I ran into this as well and just used $xScale.domain()/etc instead :).

• https://github.com/techniq/layerchart/blob/7152aa2d4d94b920fb94bbfcc25fdf9ade732236/packages/layerchart/src/lib/utils/rect.ts#L26-L28
• https://github.com/techniq/layerchart/blob/main/packages/layerchart/src/lib/components/Brush.svelte#L31-L33

Nice to not have to know this and work around.

[jnsprnw]

Thanks so much for the quick merge!

[mhkeller]

Thanks for the quick PR!