[openstreetmap/openstreetmap-website] MapLibre map under/overzooms map tiles at fractional zoom levels (Issue #6618)

Minh Nguyễn notifications at github.com
Sun Jun 21 04:49:09 UTC 2026


1ec5 left a comment (openstreetmap/openstreetmap-website#6618)

> I think Mapbox solves this very elegantly by transitioning to full Mercator between (vector) zoom levels 5 and 6 by default, but that has a very obvious transition. This transition can be minimised by having it occur only on higher zooms, but that means more resampled zoom levels.

MapLibre’s “[globe](https://maplibre.org/maplibre-style-spec/types/#use-a-projection-preset)” option transitions to Web Mercator gradually across zoom levels 10 through 12, but it’s configurable.

Reprojecting raster tiles can significantly distort symbols, particularly labels. As with pitch (tilting), sometimes a style design calls for labels to lie flat against the map for a skeuomorphic effect, but most vector styles keep labels upright to preserve legibility. That isn’t an option for raster tiles.

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