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

[Minh Nguyễn]

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

Thank you for the additional guidance. I appreciate the struggle of achieving high information density and readability at each scale.

If you’ll pardon me lapsing back into a technical discussion, I noticed that the [`raster-resampling`](https://maplibre.org/maplibre-style-spec/layers/#raster-resampling) option defaults to linear filtering, which is optimized for raster photography rather than a raster basemap. It leads to blurry overscaling compared to nearest neighbor filtering. However, your guidelines specifically caution against resampling. Of the two, I wonder if there’s a method that remains more faithful to the intended design? Perhaps it depends on whether we round or floor the zoom level? Or is it a wash so long as the map has incremental zooming enabled? (This may need some experimentation; I don’t expect you to have all the answers in the context of MapLibre.)

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