Re: [Talk-ca] Best way to keep OSM data "up to date" locally...
On Tue, Jun 15, 2010 at 9:55 AM, Tyler Gunn wrote: > I'll have to look into the size of the diffs. Ultimately my goal was to > consume as little server resources as possible. I figured there was no > sense in downloading the whole area every day when relatively little > changes. Planet files and diffs both come from the planet.openstreetmap.org mirror, and not directly from the API / database. Minutely diff files seem to be mostly 5k-50k, with some larger ones from bulk imports. ___ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca
Re: [Talk-ca] Best way to keep OSM data "up to date" locally...
> That could work. Is "every couple of days" close enough to "up to > date" for you? I suppose the answer to that is "it depends". If I am doing a lot of mapping I'd likely update daily. Otherwise every few days is fine too. I suppose there's no harm in auto-generating it every night though. > As I understand it you can apply diff files to an extract as well as > to the entire planet. So you could have a local extract and keep it > right up to date, then generate your Garmin files on your schedule. I'll have to look into the size of the diffs. Ultimately my goal was to consume as little server resources as possible. I figured there was no sense in downloading the whole area every day when relatively little changes. Tyler ___ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca
Re: [Talk-ca] Best way to keep OSM data "up to date" locally...
> GroundTruth getdata -b=-115,50,-114,51 > or just use the OSM interface & zoom to the area and 'download'. > Xapi can also to a coord + zoom to get an area. > Or just use JOSM and save the "datalayer1" as your OSM file (if its > just the downtown core) Thanks for that; it pretty much confirms the routes I figured were available. I was just trying to determine the method that puts the least amount of load on the servers. I figured it'd be optimal to just download the changes rather than the whole area each time. Thanks, Tyler ___ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca
Re: [Talk-ca] Best way to keep OSM data "up to date" locally...
On Tue, Jun 15, 2010 at 9:15 AM, Tyler Gunn wrote: > > After accidentally not including the talk-ca list in my discussions, I'll > start this off again. :) > > I'd like to keep a Garmin map of Winnipeg up to date. Easy enough to do > with a script to run mkgmap on my linux box. However, I'm just curious > what the easiest way is to keep an up to date copy of the date for Winnipeg > on my machine? > > I realize I could get a planet.osm and apply the diff files to keep it up > to date. However since my interest is in a small area I would assume that > this is not the most effective. I searched around and the best I can come > up with is to run a query on the XAPI servers every couple of days > (http://wiki.openstreetmap.org/wiki/XAPI). Does this correspond to your > experiences? That could work. Is "every couple of days" close enough to "up to date" for you? As I understand it you can apply diff files to an extract as well as to the entire planet. So you could have a local extract and keep it right up to date, then generate your Garmin files on your schedule. ___ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca
Re: [Talk-ca] Best way to keep OSM data "up to date" locally...
That would be; using GroundTruth getdata -b=-115,50,-114,51 (that was just a guess at the coords) it'll grab that area & name it 'output.osm' or just use the OSM interface & zoom to the area and 'download'. Xapi can also to a coord + zoom to get an area. Or just use JOSM and save the "datalayer1" as your OSM file (if its just the downtown core) 1 answer of many, Sam On 6/15/10, Tyler Gunn wrote: > > After accidentally not including the talk-ca list in my discussions, I'll > start this off again. :) > > I'd like to keep a Garmin map of Winnipeg up to date. Easy enough to do > with a script to run mkgmap on my linux box. However, I'm just curious > what the easiest way is to keep an up to date copy of the date for Winnipeg > on my machine? > > I realize I could get a planet.osm and apply the diff files to keep it up > to date. However since my interest is in a small area I would assume that > this is not the most effective. I searched around and the best I can come > up with is to run a query on the XAPI servers every couple of days > (http://wiki.openstreetmap.org/wiki/XAPI). Does this correspond to your > experiences? > > THanks! > Tyler > -- Twitter: @Acrosscanada Blogs: http://acrosscanadatrails.posterous.com/ http://Acrosscanadatrails.blogspot.com Facebook: http://www.facebook.com/sam.vekemans Skype: samvekemans IRC: irc://irc.oftc.net #osm-ca Canadian OSM channel (an open chat room) @Acrosscanadatrails ___ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca
[Talk-ca] Best way to keep OSM data "up to date" locally...
After accidentally not including the talk-ca list in my discussions, I'll start this off again. :) I'd like to keep a Garmin map of Winnipeg up to date. Easy enough to do with a script to run mkgmap on my linux box. However, I'm just curious what the easiest way is to keep an up to date copy of the date for Winnipeg on my machine? I realize I could get a planet.osm and apply the diff files to keep it up to date. However since my interest is in a small area I would assume that this is not the most effective. I searched around and the best I can come up with is to run a query on the XAPI servers every couple of days (http://wiki.openstreetmap.org/wiki/XAPI). Does this correspond to your experiences? THanks! Tyler ___ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca
