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Maemo Mapper v2.0
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jrreid
2007-11-10 , 06:25
Posts: 1 | Thanked: 0 times | Joined on Nov 2007
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First off Gnuite, I have to say that I really appreciate this new release. Most of the issues I'd had with 1.4.x are gone, save the occasional time where it won't start, but even that is not that big a problem. The only issue that I've seen recently was when I tried to get into the settings dialog while the GPS (a globalsat BT359) was active and it crashed the program. Not a big issue and one that can easily be worked around.
I am also a member of the Open Street Map project and that leads to the main reason I finally got around to registering here. One of our other members had observed that we are seeing a fairly large number of requests for non existent zoom levels on our servers and after some investigation I discovered that one of the many sources appears to maemo-mapper, due mainly to the recent increase in the maximum zoom level.
Open Street Map only renders tiles to an equivalent of zoom=4 (which is also used for zoom=3), which on OSM's tile server is a zoom level 17 tile. However maemo-mapper's zoom=2 requests tiles from the /19/ zoom level which doesn't exist, and zoom=0 requests from the /21/ zoom level. Is there any way that a maximum level option could be set per repository, to prevent someone from requesting a range of zooms for an large area and hammering the OSM tile server with literally tens of thousands of invalid requests? This may not be too big an issue with larger map providers such as google (although they do limit on a per-client basis after a certain point as I understand it), we have only a finite amount of server resources and are trying to get the word out to the authors of the various tools that may be the source of some bad requests.
Thanks for your great work, and I look forward to hearing back on this.
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