[openstreetmap-website] Replace scale with zoom level in Export tab (#368)

Ilya Zverev notifications at github.com
Sun Jul 21 04:50:56 UTC 2013


The thing is, people who are unfamiliar with mapnik, or any other specialized GIS software, have little idea how this number will affect their output image. Zoom level, on the other hand, is what they work with: it is present in URLs, and sometimes in editing software (e.g. TileMill, Maperitive). Algorithms for converting scale to zoom level and vice-versa are widely published, [even in our wiki](http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames#Resolution_and_Scale). I'm not sure mapnik follows that formula, but I have no doubt it's not obsured and not at all complex.

---
Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/openstreetmap-website/issues/368#issuecomment-21305151
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/rails-dev/attachments/20130720/df25a51a/attachment-0001.html>


More information about the rails-dev mailing list