[OSM-dev] Renderer request: railroad

Robert (Jamie) Munro rjmunro at arjam.net
Tue Sep 11 12:52:32 BST 2007

Hash: SHA1

80n wrote:
> I think it would be good if we had a general consensus on how to tag the
> lifecycle of anything:
> * proposed
> * under_construction
> * disused
> * dismantled
> * ruins
> * archaeological  (no visible traces at ground level unless excavated)
> * putative (supposed or commonly believed location)
> Any other possibilities?

Map features lists "start_date" and "end_date", which, if in the future
or the past respectively imply under_construction or disused. Could
these be rendered?

Proposed, under construction and dismantled would still need to be added
separately - perhaps they could also have dates, indicating when the
proposal was first made, when construction started (or will start), and
when dismantling finished (or will be finished), so that if dates are
known in advance, the rendering could change at the right time

What isn't speicfied on the map features page is the format to put the
dates in - I suggest YYYY-MM-DD, then we can also just use YYYY-MM or
YYYY if we don't know the dates more exactly. Currently, the only tag
with either of those keys that I can find in the UK (uk-070815.osm.bz2
is the only planet file I have to hand) is way 4878967, which has a
start_date="1900" - i.e. just a year, and well into the past, so it
makes no difference to rendering.

Robert (Jamie) Munro
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Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org


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