W3C home > Mailing lists > Public > public-geosemweb@w3.org > September 2013

RE: How can I declare that the coordinates I publish are only approximations?

From: John Goodwin <John.Goodwin@ordnancesurvey.co.uk>
Date: Thu, 12 Sep 2013 13:01:15 +0000
To: "Svensson, Lars" <L.Svensson@dnb.de>, "public-geosemweb@w3.org" <public-geosemweb@w3.org>
Message-ID: <30BB6C643AA06A429A22F4F40CCD13D40DE372EA@WP112.ordsvy.gov.uk>
Hi,

Do you need the machine to know they are approximations or a human? I might be simplifying things too much but would it be enough just to mention this in a comment on the dataset, or maybe the named graph, that the point are only approximate? 

John

Dr John Goodwin 
Principal Scientist
Research, Ordnance Survey 
Adanac Drive, SOUTHAMPTON, United Kingdom, SO16 0AS 
Phone: +44 (0) 23 8005 5761 
www.ordnancesurvey.co.uk | john.goodwin@ordnancesurvey.co.uk 
Please consider your environmental responsibility before printing this email.


-----Original Message-----
From: Svensson, Lars [mailto:L.Svensson@dnb.de] 
Sent: 12 September 2013 12:17
To: public-geosemweb@w3.org
Subject: How can I declare that the coordinates I publish are only approximations?

All,

A few months ago I asked for advice on how to represent coordinates for maps and got very valuable insights. Now I have a related question: When libraries and archives digitise historic maps they also create metadata for them, including a best-effort attempt to determine the map's geographic coverage. It goes without saying that the determined coordinates are mere approximations. When we publish that data in RDF, is there a way to express in geosparql (or WKT) that the specified coordinates are only approximations? I looked in the geosparql vocabulary and WKT but could not find any information.

Thanks in advance,

Lars

This email is only intended for the person to whom it is addressed and may contain confidential information. If you have received this email in error, please notify the sender and delete this email which must not be copied, distributed or disclosed to any other person.

Unless stated otherwise, the contents of this email are personal to the writer and do not represent the official view of Ordnance Survey. Nor can any contract be formed on Ordnance Survey's behalf via email. We reserve the right to monitor emails and attachments without prior notice.

Thank you for your cooperation.

Ordnance Survey
Adanac Drive
Southampton SO16 0AS
Tel: 08456 050505
http://www.ordnancesurvey.co.uk


Received on Thursday, 12 September 2013 13:01:42 UTC

This archive was generated by hypermail 2.3.1 : Tuesday, 6 January 2015 19:39:22 UTC