On Jan 16, 2008 11:19 AM, Martin Trautmann <[EMAIL PROTECTED]> wrote:
> In-Reply-To: <[EMAIL PROTECTED]>
>
> On 2008-01-16 10:47, David Earl wrote:
> > Irrespective of this proposal, which I hadn't noticed, I've been using
> > it for all places in my area for some time now
>
> I do not see any description about the syntax within the proposal - and I
> feel that a population has to be accompanied whenever possible by a valid
> date.
>
> Thus I feel it is not possible to add a pouplation tag directly to a
> place. Apart from node, way and area this would require yet another data
> primitive, such as data
>
>
> <tag k="place" v="village">
> <tag k="place_name" v="SC-Village">
> <data=12345>
> <data=123444>
> ...
>
>
> <data id=12345>
> <tag k="population" v="123">
> <tag k="date" v="2007-12-31"
> <tag k="precision" v="1">
>
> <data id=123444>
> <tag k="population" v="100">
> <tag k="date" v="1990"
> <tag k="precision" v="10">
>
> precision could be v={1|10|100|h|1000|k|10000|10k|100000|100k|1000000|M|1M}>
If you want to indicate precision, you can do so using scientific
notation (that's what it's there for, after all). So your examples
would be 1.23x10E2, 1.0x10E2 and so on. But I don't think many people
would care much about precision.
You should also consider relations. A relation type = population, with
an area as a member and all the tags you wish, could be added.
Separate relations for different dates would then work too.
Cheers,
Andy
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