On 9 Jul 2012, at 19:40, John Handelaar wrote:
> a) There are places where OSM data is next-to-worthless for our intended use
> cases. I mention this because I live in one of them. I fully grant this is
> entirely OSM's fault, but we just made it partly our problem.
If the OSM data can be improved or added to, then people can be encouraged to
do that. If there is data that is unsuitable for putting into OSM for whatever
reason that might be, the source code can be used to create a separate non-OSM
mapit (as we do in the UK). And we will continue to make improvements for both
those purposes.
> b) MaPit has countries in its models. This data does not - everything at
> every level internationally seems to be in one country called 'G'.
Indeed; it is an instance of mapit that is not using that particular bit of
functionality. We didn't want to make any decisions about the OSM data (e.g.
"all level 2s are countries") because that might well not be the case, and it
seems simpler to let the data stand on its own as what it is.
> c) (Related) (feature request) Even if B gets fixed there'd be no way to
> show me (eg) "OSM admin level 7 in Canada" and not "OSM admin level 7 in the
> entire world" because that's a JOIN and the API doesn't have those
You can (theoretically) already do exactly that request, as you can with any
area in the system:
http://global.mapit.mysociety.org/area/13505/covers.html?type=O07
(show me everything that Canada covers of type O07). But note my recent comment
on https://github.com/mysociety/mapit/issues/16 saying this call is actually
very non-optimal and will currently time out. I can't say how much it could be
sped up, but that's certainly something that can be looked at (perhaps
precomputing all the results, for example).
> d) There's no list of area types, unlike the UK version
Could be clearer, but there is, and it's in the same place in the documentation
that it is on the UK version. "The current area types are: O01 to O12." That
could be spelt out and link to the lists for each level, as the Norwegian
version does, feel free to add a ticket on github.
ATB,
Matthew
> Actually on balance the short version of this is "some of the data is epicly
> awful and can we talk about that?", and all the bugs I can see could be
> expressed together as "I don't think many people will be able to actually use
> this for anything unless the web UI makes the data browseable, and right now
> it is not, and can we talk about that too?".
>
> Failing that, will it have a "Global"-only bug list?
>
> Yours, feeling rather more crotchety than usual for going to the problems
> instead of recognising what a massive PITA this must have been to actually
> construct (Bravo!),
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