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I've been looking at how we locate things, specifically for where an
item of equipment is.<br>
<br>
Different things get described at different levels of detail,
sometimes as that's the data we have, but also some items move
around a building so we can't be more specific.<br>
<br>
Also some things we wouldn't want to give too much detail about...
it's not advisable to give too much detail in open-data on the
location of valuable+portable items!<br>
<br>
So as I see it we've 4 levels of resolution:<br>
Room ,--<a href="http://vocab.deri.ie/rooms#Room">
http://vocab.deri.ie/rooms#Room</a><br>
Building, --<a href="http://vocab.deri.ie/rooms#Building">
http://vocab.deri.ie/rooms#Building</a><br>
Site/Campus, -- ?? <br>
City -- ??<br>
<br>
-- I guess there's also cases for subdividing rooms and for
county,region,country,continent,planet... but the same discussion
applies.<br>
<br>
Given that a location of a thing has a reference point lat/long or
E/N, I want to draw it on a map, and measure distance to it. <br>
<br>
So I'd like to know which location is more specific (which I can
work out from x within y, y within z etc, but for the sake of ease
I'd rather mandate a list of allowed location types and know the
relative scales.)<br>
<br>
I've been using org:Site for campuses, but this is a mistake on my
part as this refers to the site of an organisation, and can be at
any scale -- it doesn't have the semantic meaning I intended, so I
need a class to recommend for campus/site & city scale
locations.<br>
<br>
And for each scale I'd like to define a rough error value. eg. the
reference point of a room should be disregarded within 5m of it, for
a building 20m?, a site 100m and a city 5km? I'm pulling these
numbers out of the air, but if I'm sorting things by proximity to
the highfield campus (in southampton) and I have some listed as in
"southampton", I'm not sure what to do with them.<br>
<br>
On a map, I guess things with vague locations maybe shouldn't be
shown on pins when you get past a certain zoom level?<br>
<br>
<br>
<br>
<pre class="moz-signature" cols="72">--
Christopher Gutteridge -- <a class="moz-txt-link-freetext" href="http://id.ecs.soton.ac.uk/person/1248">http://id.ecs.soton.ac.uk/person/1248</a>
/ Lead Developer, EPrints Project, <a class="moz-txt-link-freetext" href="http://eprints.org/">http://eprints.org/</a>
/ Web Projects Manager, ECS, University of Southampton, <a class="moz-txt-link-freetext" href="http://www.ecs.soton.ac.uk/">http://www.ecs.soton.ac.uk/</a>
/ Webmaster, Web Science Trust, <a class="moz-txt-link-freetext" href="http://www.webscience.org/">http://www.webscience.org/</a>
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