On 9/7/2015 9:49 PM, Chris Riddoch wrote:
I would also have already written an automated edit script, but I saw
in numerous places of the wiki, as well as being told indirectly on
IRC, that I should really be talking to someone about this sort of
thing first. I looked through what documentation there is about the
'osmchange' format on the wiki, but it wasn't clear how to handle
changes to tags from the description there.
So I ran josm with -Djavax.net.debug=all so that I could analyze the
format properly. It looks like it isn't *quite* as simple as just
providing a file you can just send to the server, because that
incorporates a changeset ID which is ephemeral. I also wouldn't want
to try such a thing without properly testing it first. So I knew I'd
need to talk to someone here about how best to do this -- thus, my
original message. I came here because I read those wiki pages.
Generating the diff yourself and uploading is the wrong way to make a
change like this. The normal way to deal with a change like this is with
JOSM and JOSM's find command, perhaps combined with the overpass API. I
should mention that overpass API and "select all" is not the right way
to make a change either.
There are exceptions to this rule, such as a mechanical fix of TIGER
street names from about a year or two ago, which was both large and complex.
Yes, it's *possible* to fix errors by hand individually using JOSM, in
the same way it's possible to count grains of rice by hand, but... no,
I'm sorry, I'm just not motivated to do that.
It sounds like the most useful thing I could do, though, would be to
help you all develop a mechanism for reverting changesets. That seems
a rather important feature for crowdsourced data management. Should I
be
looking at https://github.com/openstreetmap/openstreetmap-website for that?
Openstreetmap-website is for the web page and API, and revert tools
wouldn't be part of either. They interact with the API like other
editors. JOSM has a revert plugin, and there are also command-line tools
which are difficult to use. Improvements to either of them would of
course be welcome.
A revert isn't what you want anyways, if they were mapped with the wrong
building value from the start, as reverting the changeset would remove
them all.
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