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There is a beautiful "Interactive Conference Map" for Google IO 2010 here: http://www.google.com/events/io/2010/map/#level1

Notice the overlays and useful layout. It works well on mobile devices too.

I want to do the same thing, but instead of GMaps loading new tiles every time it is panned or zoomed, I want to have all the tiles pre-cached. This also means it wouldn't need data connection.

Someone told me it was against GMaps Terms of Service to pre-cache the tiles, but have been unable to find out for sure. If it IS against their terms of service, I wonder if there is another way (another service) someone has found, e.g. using OpenStreetMap.

Trott
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dnh37
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If you're doing your own tile overlay, then you can certainly cache your tiles. It's probably a bad idea to cache Google's tiles, though. See How to cache Google map tiles for offline usage? for some details and also some links to projects that are trying to make it possible to do this anyway.

Community
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Trott
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  • Great link, and thanks for the advice, very helpful. Can't vote it up yet cos I don't have 15 reputation though.. – dnh37 Jun 06 '11 at 15:29
  • Heh, not sure if you were slyly asking for the question to be voted up so you could have enough rep to upvote, but uh, it worked. :-) – Trott Jun 06 '11 at 17:28
  • Well... I didn't think of that but won't say no. And now I can vote your answer up as it deserves to be.. – dnh37 Jun 21 '11 at 14:40