Incorrect zoom for some bounds

[vedmant]

For some bounds it calculates incorrect zoom, for example here [-112.16601, 37.622623, -112.082016, 37.672085] it calculates zoom 13 and it doesn't include most of markers, correct zoom will be 12.

geoViewport.viewport([-112.16601, 37.622623, -112.082016, 37.672085], [672, 376])

Here is example URL for static map with zoom 13:
https://api.mapbox.com/styles/v1/tripexpertweb/ckcdpjifn06ru1impw321xsqi/static/pin-s+000(-112.15432,37.672085),pin-s+000(-112.082016,37.624809),pin-s+000(-112.16601,37.622623),pin-s+000(-112.15432,37.672085),pin-s+000(-112.15432,37.672085),pin-s+000(-112.15432,37.672085),pin-s+000(-112.15611,37.64101),pin-s+000(-112.15611,37.64101)/-112.12401330471039,37.64735841514176,13/672x376@2x?access_token=pk.eyJ1IjoidHJpcGV4cGVydHdlYiIsImEiOiJja2Fud3l2MDcwbXZ0MndyeGF3eGI3ZWhzIn0.zLqNa1RECyZZadF8zfQM5w

And correct one with zoom 12:
https://api.mapbox.com/styles/v1/tripexpertweb/ckcdpjifn06ru1impw321xsqi/static/pin-s+000(-112.15432,37.672085),pin-s+000(-112.082016,37.624809),pin-s+000(-112.16601,37.622623),pin-s+000(-112.15432,37.672085),pin-s+000(-112.15432,37.672085),pin-s+000(-112.15432,37.672085),pin-s+000(-112.15611,37.64101),pin-s+000(-112.15611,37.64101)/-112.12401330471039,37.64735841514176,12/672x376@2x?access_token=pk.eyJ1IjoidHJpcGV4cGVydHdlYiIsImEiOiJja2Fud3l2MDcwbXZ0MndyeGF3eGI3ZWhzIn0.zLqNa1RECyZZadF8zfQM5w

If I convert back to bounds from center and zoom, it doesn't match initial bounds:
geoViewport.bounds([-112.12401330471039, 37.64735841514176], 13, [672, 376])

[-112.1817398071289, 37.621845878167704, -112.0663833618164, 37.67295135774715]

In this case [2.269904, 48.849976, 2.391055, 48.874565] it calculates zoom 12 which is correct and includes all markers.

[ted-moke]

I am having the same issue. The amount its off by varies between cases so I can't even take a specific fraction of the zoom.

[andrewharvey]

Does it make a difference when you specify the pixel size?

Leaflet and GL JS zooms are off by one because of the tileSize so wonder if that could be the reason here?

[ted-moke]

Yes, changing the tile size to 512 fixed the issue! Thank you!

I should have read the bottom part of the readme more closely. The blog link at the bottom is broken, I believe I found the correct post. Will open an MR with the new link.