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

Marwin Hochfelsner notifications at github.com
Tue Dec 16 18:40:10 UTC 2025


hlfan left a comment (openstreetmap/openstreetmap-website#6618)

> What you, however, should not do is render it for one scale and display it at a substantially different scale or render it at one resolution and then display it at a different resolution - or, as it is done on the dashboard map right now: Display it at a different scale and a different resolution compared to what it is designed and rendered for.

> thousands of websites demonstrate every day that it is definitely possible to do this in general.

I don't think you could name one single website that displays OSM-Carto tiles 1:1 without raster resampling on a reasonably modern smartphone. Let me demonstrate:

![Image](https://github.com/user-attachments/assets/8b328945-d456-4369-a081-57356c51b9ef)
Yes, that's a microSD card for scale.

OSM-Carto just isn't made to be displayed on current high-dpi screens without either raster resampling or never stopping to squint.

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