[Historic] Dating features (was: Introduction & questions)

[Mikel Maron]

> base-uri/YYYY/zoom/x/y.img
> 
> Should this return start, middle, or end of YYYY, or should we enforce YYYY-MM-DD at a minimum?
 
Usual way I've seen this dealt with is to assume "start" of the year (or month or day, or whatever fidelity of the given input date).

> If the year is -2000 BCE, how should we express that?

-2000?
http://en.wikipedia.org/wiki/ISO_8601#Years


It might actually need to be -1999, not so smooth.

> I'm fine with any answer, but we should pick one and use it until it breaks. Sound ok? I'm not smart enough to suggest the answer...

Yea, my suggestion too. This might not be perfect, but we can adjust once we have the basic flow going.
As you can see, I'm smart enough to use wikipedia only ;)
> By 'moment', I take it you mean day? Or are you thinking of "Historic" values?

 
Sorry, I was simply meant a single datetime value.

> As long as this works on a relation, I'd be happy with it.

That would all depend on how the relation is processed by osm2pgsql.

-Mikel

* Mikel Maron * +14152835207 @mikel s:mikelmaron


>________________________________
> From: Jeff Meyer <jeff at gwhat.org>
>To: Rob Warren <warren at muninn-project.org> 
>Cc: Mikel Maron <mikel_maron at yahoo.com>; "historic at openstreetmap.org" <historic at openstreetmap.org> 
>Sent: Wednesday, February 27, 2013 2:07 PM
>Subject: Re: [Historic] Dating features (was: Introduction & questions)
> 
>
>So, let's test two cases:
>
>
>* Time Pixels:
>
>
>base-uri/YYYY/zoom/x/y.img
>
>
>Should this return start, middle, or end of YYYY, or should we enforce YYYY-MM-DD at a minimum?
>
>
>* Web Mercator of Time:
>
>
>If the year is -2000 BCE, how should we express that?
>
>
>I'm fine with any answer, but we should pick one and use it until it breaks. Sound ok? I'm not smart enough to suggest the answer...
>
>
>- Jeff
>
>
>
>
>
>On Wed, Feb 27, 2013 at 10:39 AM, Rob Warren <warren at muninn-project.org> wrote:
>
>
>>Mikel,
>>
>>
>>On 27-Feb-13, at 1:52 PM, Mikel Maron wrote:
>>
>>
>>for a date range:
>>>base-uri/date_start/date_end/zoom/x/y.img
>>>
>>
Makes sense.
>>
>>
>>for a moment:
>>>base-uri/date/zoom/x/y.img
>>>
>>By 'moment', I take it you mean day? Or are you thinking of "Historic" values?
>>
>>As long as this works on a relation, I'd be happy with it.
>>
>>best,
>>rhw
>>
>>
>>
>>_______________________________________________
>>Historic mailing list
>>Historic at openstreetmap.org
>>http://lists.openstreetmap.org/listinfo/historic
>>
>
>
>
>-- 
>Jeff Meyer
>Global World History Atlas
>www.gwhat.org
>jeff at gwhat.org
>206-676-2347
> osm: Historical OSM / my OSM user page
> t: @GWHAThistory
> f: GWHAThistory
>
>
>
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/historic/attachments/20130227/271d8a11/attachment-0001.html>