http://www.openstreetmap.org/browse/relation/393821
attribution = Natural Resources Canada canvec:CODE = 1240022 canvec:UUID = cad1acc2f7794480a0c17cadeef4d3b7 natural = wood source = CanVec_Import_2009 type = multipolygon That looks fine. I would remove that canvec:UUID tag as since now it is in the database it is free to edit, and to what we wish to. But that's just me. BTW, in the USA Tiger data, the UUID was removed as it has a 'power fit' where it was treated as more valuable than regular users edits. That part (power fit) is not acceptable with OpenStreetMap. The canvec:sourceDate=* should be added (it available in the datasource) since that tells the users how old the data is and gives them a way to compare the data with their own datasets (ie. from municipalities directly) or from physical observations. Change on the ground happens so fast that it's important to have it on all features. Its worth no note that this 'wooded_area' is simply just that, it has no boundaries, it just states "at the time of surveying, this area has trees, and the wholes (inner polygons) dont have trees". This 'wooded area' is not a designated area, so it's neithor a park/private land/protected area. When you look at the yahoo imagery (and future imagery) you can easily see what the currently status of the 'wooded_area' actually is. But on the ground, you'll see what it's like today. So in sum, when your out mapping, feel free to adjust the edges of these polygons to accurately show where in fact the 'wooded_area' is today. And if you know what the designation of the area is. ie. signs that say park area, you can add that in as an unfilled polygon border. Great to see no edges, nice fix. Cheers, Sam On Sun, Jan 24, 2010 at 7:59 PM, Frank Steggink <[email protected]>wrote: > Hi all, > > Today I have (finally) worked on large features in Canvec data (forests, > water, etc.), and I have come up with a method how to deal with them. > This currently involves PostGIS, but maybe I'll use GEOS or another > method, so that it isn't necessary to load data in a DB. More details > will follow soon, since I need to clean up code / sort out things a bit, > and eventually integrate it into the canvec_to_osm.py script. > > Right now I've uploaded (only) wooded areas in the Charlevoix region in > Quebec. This already makes the map look entirely different! The result > can be found here [1]. Changesets: [2] and [3]. > > You'll see faint horizontal and vertical lines crisscrossing the area. > This is an artifact of making the features smaller (0.1 x 0.05 degrees). > This will be dealt with with the "gamma" option which is part of the new > Mapnik 0.7.0 release. This will probably be used in a couple of weeks on > osm.org. See [4] for more info. > > Cheers, > > Frank > > [1] > http://www.openstreetmap.org/?lat=47.625&lon=-70.25&zoom=11&layers=B000FTFT > [2] http://www.openstreetmap.org/browse/changeset/3707953 > [3] http://www.openstreetmap.org/browse/changeset/3708062 > [4] http://trac.mapnik.org/wiki/PolygonSymbolizer > > > _______________________________________________ > Talk-ca mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/talk-ca >
_______________________________________________ Talk-ca mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-ca
