On 19-12-2011 22:40, Frank Steggink wrote:
On 19-12-2011 22:20, john whelan wrote:
But recently I noted that the CANVEC tags are being removed. Two
people in the talk-ca list mentioned recently they had done so.
Cheerio John
According to my mailbox the answers were different. Jonathan mentioned
that he used other data sources, so the data wasn't significantly
Canvec anymore. Gordon didn't mention he removed tags, he just offered
a possible reason. As to your question in that thread, and not knowing
the user you were referring to, I was just wondering whether you sent
him/her a PM and asked about the reason (but I didn't bother to post
that to the mailing list). So, did you ask that user directly?
Also Bing has stated that they should be attributed. That is one of
the conditions they provided their imagery to OSM. Of course everyone
knows that the source tags aren't absolute guarantees. It is also not
practical to enforce them. If that would happen, OSM would not develop
as it does right now, so although I would oppose removing source tags
knowingly (when the data is not altered significantly), there are many
shades of grey. It is often hard to draw a boundary, so we have to
rely on the good intentions of the mappers. That makes a project like
OSM both challenging and charming :)
Regards,
Frank
John,
I've got a question for you. I'm planning to (finally) clean up the
forests / residential areas in Quebec City for some time. [1] I'll
probably do this around Christmas. For this task I'll rely on the Bing
imagery. How should I tag the polygons I create / modify? Should I leave
"Canvec" intact as a source, use "Bing", or should I cut up the polygons
in two? The only difference between the new parts will be the attribution.
I usually use a mixed tag in such cases (like source=Canvec;Bing). But
since OSM has many users, many which are not experienced and/or do not
care about these issues, can you realistically expect that everyone will
take care about attribution properly?
Regards,
Frank
[1] http://osm.org/go/cKZOMVgi-
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