-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Steffen Hoffmann wrote: >> Sebastian Spaeth <[email protected]> writes: > >>>> Stephan Knauss wrote: >>>>>> Sebastian Spaeth wrote: >>>>>>>>>> What else could we render? Nautical charts maybe? What else? >>>>>>>> Language overlays in 100 languages :-) > [...] >>>>>> Is it possible to overlay a captionless base-layer with captions? >>>> Dynamically in openlayers yes. We would need to create the captionless >>>> layer for all zoom levels (or better remove all text from the default >>>> tiles, rather than have a new full-zoom layer). >>>> >>>>>> The top 20 languages (by the number of name-tags) cover already a huge >>>>>> part of the planet. >>>> Yep >>>> >>>> Any takers welcome. I would need to set up the caption layers on the >>>> server (easy) and someone (not me) would need to create style sheets for >>>> osmarender and introduce those caption layers in the clients. >> The server then should be setup to deliver a default caption tile if a >> tile for the requested language is not available. > >> The downside of a setup like this is that the tile layer would not be >> usable anymore without a caption overlay. That makes its use more >> complicated for sites like the OSM homepage. This would need to offer >> all the caption overlays which are incompatible with the other base >> layers that one can choose there. > >> Don't know whether OpenLayers has a smart way of dealing with that. > > I don't know, if it is possible to merge a tile with the corresponding > caption layer tile on request. I read somewhere "If one can think it, it > can be done." or similar. I think about it ... :-)
Ohh, that is certainly possible. However t...@h serves currently about 4 TB of data per months. And there is no way I get that server to produce the majority of those tiles on the fly. There is also no way to have enough storage to cache those merged layers for 20 languages or so. So it would be a client side-merge (aka openlayers or whatever). Sebastian -----BEGIN PGP SIGNATURE----- Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkq0gGIACgkQVYX1jMgnoGLdPwCfWu5mqmSzfXFmByzR2ycAI1MF z3YAnROJlU+hCMBUK8MFD3uwV2ZvqihH =ZJcG -----END PGP SIGNATURE----- _______________________________________________ Tilesathome mailing list [email protected] http://lists.openstreetmap.org/listinfo/tilesathome
