On 07/04/11 10:05, Abhi Beckert wrote:
Hi all,
I'm planning a GPS app for the iPhone, which will use OSM. It's a bit
of a niche app, with some simple features that most GPS users would
not want, and so doesn't exist yet.
I have a basic prototype working, and am convinced everything can be
done fairly easily. Now I need to get some of the specifics sorted out.
My biggest question is, what is the best place to get tiles from? My
users will typically want to download tiles from home, and have them
all loaded on the device like a traditional GPS. There seem to be lots
of tile servers out there, which is the best one? Many of my users
will be editing the map, so I want the data to appear quite quickly
after an edit. I noticed a change I made nearly a week ago is still
not rendered at opencyclemap.org <http://opencyclemap.org>, so clearly
some servers have longer delays than others.
Should I run my own server as cache for my users, to help reduce load
on the OSM community servers?
Or even better, is there any open source code to render the raw vector
map data on an iPhone? Or perhaps just some clean C/C++ code for
another platform that I could port? My prototype is using tiles, and
it's good enough. But if it's easy I would like to change what is
visible on the map, since my users have some unique needs in that
regard. I also understand the vector data is smaller/more suitable for
storing on the phone.
Firstly, thank you for asking *before* using the OSM tiles.
Mapquest provide up-to-date OSM tiles from servers that are more
powerful than OSM's servers. One of their blogs about it is here
http://blog.mapquest.com/2011/01/19/open-rollout-continues/
I think they would like advanced warning of an app going live using
their tiles.
--
Cheers, Chris
user: chillly
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