OpenStreetMap 開放街圖
Canvec has some crappy rail lines - please don't delete and import.
於 2012年十月 5日 由 z-dude 以English發表。Here’s the Canvec rail lines in Smithers BC. osm.org/edit?lat=54.77618&lon=-127.17589&zoom=16
I really appreciate that people are importing canvec data, and appreciate the streams and lakes, but there was already a nice set of rail lines in northern BC made by ipodolsk osm.org/user/ipodolsk and that data has been overwritten by what appears to be less accurate canvec data as the canvec rail lines have exaggerated shapes.
In Northern BC, other keepright errors that I fixed seem to have Canvec and Geobase imported data overlapping each other. In most of the cases I have seen, Canvec and Geobase had identical nodes, so we didn’t gain much by re-importing roads.
I’m sure that importing data from Canvec and Geobase is a huge task, but I think that in a lot of cases, we don’t need to delete old road, or old rail lines to re-import more Geogratis data from the Government of Canada.
Best of luck.
討論
由 davespod 於 2012年10月 5日 13時42分 發表的評論
Indeed. No one should be deleting carefully volunteer-collected data from the database to replace it wholesale with imported data. It is the importer’s responsibility to ensure that they the data is carefully integrated with what is already there (no duplicates, and not assuming what is already there must be wrong just because it disagrees with the third party source). If necessary, this means hand-stitching it together.
The importer should be directed to:
osm.wiki/Import/Guidelines
由 z-dude 於 2012年10月 5日 22時19分 發表的評論
I’m sure that doing an import is a huge task, but for BC, the roads and rails are currently in place and we’re not gaining much by re-importing them again.
由 Sanderd17 於 2012年10月 6日 20時48分 發表的評論
If almost everything is in place, you should’t import it. Instead, rendering a layer that can be traced in editors might be better.
That way, help is provided to the local mappers, while nothing gets broken.