On Wed, 2008-11-26 at 01:40 -0800, Sam Vekemans wrote: > > > > I do think it was important to have things broken up > geographically. It > makes it much easier if something goes bad to find the data, > remove it, > an retry. > > > Since the data is broken up into Geobase tiles, perhaps importing by > tile area to get more specific. The provinces are rather large, so > going at it, by 1 degree x 2 degree would be better??
Yes, it probably would be better. However, there is also the problem of stitching things back together in the end. I never dealt with that part. Also 1x2 degrees probably isn't bad for, say, the Yukon Territories. But, I would imagine that Toronto is going to fit almost entirely into one of those. That might pose a few problems. I think the largest .osm file that I uploaded was Kern county in California. It was 165MB. > One thing I never considered, but did come back to bite me a > few times > was concurrency. I'd upload a node, make a way use it, then > come back a > few hours later to have another way use the node. But, > somebody got to > the node before I did. There were three or four of these and > I fixed > them up by hand. It sucked. :) > > > Well, remember (last week i think it was) when OpenStreetMap was shut > down for maintenance? > Well, what about convincing the foundation to shut down the server so > then all the data can be uploaded at once? > That would fix the problem that you had. :) Sure, if you can pull this off, go for it. Otherwise, it isn't *that* difficult of a thing to plan for and fix. Basically, if you notice that some node that you need is gone, you just re-upload a new copy of the original node and make a note of it. It's that simple. > Keep a record of everything that you do. Keep good logs and > make sure > that whatever programs you use to upload the data can be > stopped and > restarted at any time with no ill effects. This generally > means keeping > a table of which objects have been uploaded and their id > mappings. > > I think we already discovered that the natural features shapefiles > data, shouldnt post any conflect... not a major one that is. ... Every > city does have some kind of water feature, and it's probably labeled, > but thats about it. > and for the other features .... ya pausing OpenStreetMap to make the > import happen. would guarentee no point conflicts. > > > I > think bulk-upload.pl > http://wiki.openstreetmap.org/wiki/Bulk_import.pl > does this pretty well, although I did have to > customize it a bit. > Ya, as as far as i can see, the way that GeoBase keeps the data is a > bit different. > each province does have a different way of classing roads. .. so when > your literally traveling between provinces.. the pavement is > identical.. yet the signs on the roads indicate a different road > class. (thats because provincial roads are funded provincially, there > is very little discussion between provinces. So each provincial > upload would be different. (talk-ca talked about it back in the > summer) Yeah, one of the first steps is to come up with a conversion scheme to convert your features into OSM features. -- Dave _______________________________________________ Talk-ca mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-ca
