Grid Skew on large bbox

[cmtoomey]

Similar to #758 - we are getting strange skew for grids that utilize a large bbox (world scale)

Hex
Square

We are seeing similar results in our production application, regardless of grid size.

Square

Hex

It looks like the fix in #758 didn't resolve this for @turf/square-grid or @turf/hex-grid

@DenisCarriere - is it possible to get this resolved?

cc @mtirwin

[mtirwin]

@DenisCarriere asking because we know you're super close to the issue and the codebase. Even if you don't have time to submit a PR, getting any guidance you can offer on approach would be 👌.

[cmtoomey]

Additional context - this issue doesn't appear for smaller bounding boxes.

cc @morganherlocker @mourner for potential thoughts on an approach to fix.

[stebogit]

@cmtoomey have you read #1059?

I believe it all depends on the projection distortion. You might wanna try playing with @turf/projection and see if that helps when the bbox is large enough to generate the issue.

[rowanwins]

Hi @cmtoomey & @mtirwin

Thanks for reporting the issue, looks like something funky going on, although there is no need to cc in ppl within 2 hours, particularly when they aren't actively involved in the maintenance of the library.

I've just released an alpha of v7 which is a fairly big overhaul of the structure of the lib.

I'll take a look at it when i get a chance but if you've got time to look into the issue feel free.We're open to pull requests against the v7 branch.

Cheers
Rowan

[cmtoomey]

@rowanwins
Thanks for the note about alpha - our team will look at that and #1059 per @stebogit and see if that can get us a quick fix. The CCs were more to get some internal visibility on the issue - not to cause a small 🔥

We think we have a workaround for now, but if someone could take a look at some point in the future, it would be much appreciated. I'll close for now.