Tooltip anchor locations are incorrect for small GeoJSON polygons in 1.9.x

[michaelthoreau]

Checklist

• I've looked at the documentation to make sure the behavior isn't documented and expected.
• I'm sure this is an issue with Leaflet, not with my app or other dependencies (Angular, Cordova, React, etc.).
• I've searched through the current issues to make sure this hasn't been reported yet.
• I agree to follow the Code of Conduct that this project adheres to.

Steps to reproduce

This JSFiddle Illustrates the problem well: https://jsfiddle.net/michaelthoreau/ekafvph8/6/

This issue seems to only affect geojson polygons that are geographically small, regardless of pixel size when drawn.

Expected behavior

Both tooltips should appear centered on the polygons.

Current behavior

The smaller polygon's tooltip appears in the wrong position. This behaviour does not appear in leaflet@1.8.0.

Minimal example reproducing the issue

https://jsfiddle.net/michaelthoreau/ekafvph8/6/

Environment

• Leaflet version: 1.9.3
• Browser (with version): 108.0.5359.124 (Official Build) (arm64)
• OS/Platform (with version): Mac OS 12.6

[Mushr0000m]

Any news about this ?

[Falke-Design]

We have already a PR (#8784) for this, but the PR needs first to be merged and then a Release is necessary. So this will take a while.

[Mushr0000m]

When you say a while you mean weeks ? months ? We can't use Leaflet for our new project due to this...

[Falke-Design]

You can use Leaflet 1.8.0 until the fix is released.
I can't say you how fast the release will be done. I hope in the next 2 weeks but i can also take 2 months.

[michaelthoreau]

@Falke-Design Thanks for the pull request! I was suspicious of something like rounding that but didn't do a great job of debugging due to unfamiliarity with the project structure. Looking forward to the release but using 1.8.0 until then.

BTW we frequently use 7+ decimal places to annotate small objects... works well so far but hoping we dont run in to precision issues if we go much smaller.

[Falke-Design]

Issue fixed by #8784, will be in the next v1 release

[foxymiles]

This is affecting us too. Thanks for the fix! We're looking forward to the next release.

[Falke-Design]

@foxymiles @michaelthoreau @Mushr0000m we just released 1.9.4 which includes the fix for this.

[foxymiles]

@Falke-Design Thanks for the update!