[OSM-talk] OSM needs a measure for completeness
Mark Williams
mark.666 at blueyonder.co.uk
Sat Jan 12 21:24:56 GMT 2008
Robert (Jamie) Munro wrote:
[]
> Rather than creating special ways, just to show completeness, why not
> mark the ways that are already there with weather or not they are
> completely connected. I.e. I know that all the roads and footpaths that
> connect to my road are on the map, so I could put a tag on the road
> saying complete_connected=roads,footpaths or something. We could then
> make a map with all the roads that are marked as not completed coloured.
>
> Also, if we could make a tag for a road that you have seen one end of
> but haven't mapped down, that would be useful. Some people use 3
> unconnected nodes as a sort of ... symbol on the map, but this doesn't
> work very well. A short way that was tagged specially would indicate to
> people that that area needed surveying because the roads weren't
> complete. If a road had these for all the roads joining it, I would mark
> it as complete in the scheme above.
>
> Robert (Jamie) Munro
Isn't that FIXME?
Validator picks this up especially (in JOSM) & highlights it.
I initially thought this was bad, but have just added it to all un-named
roads in 'my' area because an un-named road on my GPS looks, well, like
any other, but this tag shows up in my editor, on my GPS while I'm out -
and denotes a particular level of completeness. I have also used
note:TODO to mark a path end I'm not going down yet, because I can
search on it - but have swapped them for FIXME now.
The above 'Three Dots' would tend to pick up in Validator too, but with
a tempting 'Fix' button to unmark them ;)
Obviously this only applies to marking incompleteness, which is (as
previously observed) relatively simple... I think if all this gets to
proposals, I'd go for an 'incompleteness' markup which could include
things the mapper knows he hasn't done, + anything a script spots isn't
done, + any casual visitors observed needs, etc - any time an important
new feature comes up, it _could_ get added globally & removed progressively?
A 'complete' markup will go obsolete every time a vote gets approved &
can't cope with things we hadn't thought of at the time, and it's all
very well saying it's only for given parts but just look at highway
tagging for example - bus_guideway, turning_circle are in progress, and
will promptly render many 'streets complete' tags wrong if approved.
Mark
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