Re: [Talk-ca] Best way to keep OSM data up to date locally...

2010-06-15 Thread Richard Weait
On Tue, Jun 15, 2010 at 9:15 AM, Tyler Gunn ty...@egunn.com 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.

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Re: [Talk-ca] Best way to keep OSM data up to date locally...

2010-06-15 Thread Tyler Gunn

 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


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