Hi James
For geolocation values the wikipedia guidance on use of coordinates is possibly helpful:
https://en.wikipedia.org/wiki/Wikipedia:WikiProject_Geographical_coordinates#Precision
Where decimal degrees are used, the number of decimals used reflects an implied level of precision which might be enough for what you need.
I've not come across a similar single-value method for ranges of dates though!
Cheers!
Ken
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# Ken Bailey, IT Department, # Email: [log in to unmask] #
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________________________________________
From: Museums Computer Group [[log in to unmask]] On Behalf Of James Morley [[log in to unmask]]
Sent: 04 November 2013 11:02
To: [log in to unmask]
Subject: [MCG] Displaying imprecise date and location information - best practice and examples?
Hi
<http://www.apennypermile.com>
I've long wrestled with finding appropriate visual ways to represent date
and location metadata that is intended to be imprecise - for example
representing 'taken some time in 1944' or where something is geotagged at
coordinates representing just a town or city. The danger is that even if
there is some sort of measure of precision or 'granularity' recorded
alongside these (which is what Flickr does quite nicely) the underlying
metadata is typically still stored as an accurate date (e.g. 01/01/1944
00:00) or at a particular geographic location such as 51.511214,-0.119824
(which Google at least considers the coordinates for London, but could be
misconstrued as being the Starbucks on the Strand!).
On maps I'm guessing you could use different pin styles. I'm not so sure on
timelines. Anyone got any good examples that handle either of these well?
Thanks, James
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