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Re: SDW BP Glossary Issue 195: Spatial Thing

From: Clemens Portele <portele@interactive-instruments.de>
Date: Thu, 4 May 2017 15:05:58 +0000
To: "Little, Chris" <chris.little@metoffice.gov.uk>
CC: Linda van den Brink <l.vandenbrink@geonovum.nl>, "Tandy, Jeremy" <jeremy.tandy@metoffice.gov.uk>, "public-sdw-wg@w3.org" <public-sdw-wg@w3.org>
Message-ID: <F160A39E-7E98-4AAE-AD8A-ABFBBE6FB81E@interactive-instruments.de>
Chris,

I think your proposal is not what is intended. I do not know who added the link to the "spatial object" definition in ISO 19107, but a spatial object in ISO 19107 is not what we call a spatial thing. A spatial object is a geometry or a topology object. A spatial thing is a combination of the real-world phenomenon and its abstraction (the feature).

Best regards,
Clemens

> On 4. May 2017, at 16:23, Little, Chris <chris.little@metoffice.gov.uk> wrote:
> 
> 1. Current Entry:
> "Spatial thing: Anything with spatial extent, i.e. size, shape, or position. e.g. people, places, bowling balls, as well as abstract regions like cubes. Compare with the ISO definition for Spatial Object. [ W3C-BASIC-GEO]"
> 
> 2. The ISO definition is actually for a 'spatial object'.
> 
> URI: http://registry.it.csiro.au/sandbox/iso-tc211/terms/419, or TC211 spreadsheet
> 
> "object used for representing a spatial characteristic of a feature"
> 
> Defined in ISO 19107:2003
> 
> 3. W3C-BASIC-GEO does not seem to try anything as rash as defining a spatial thing.
> 
> 4. I propose to stick with the ISO definition, and thus probably no change needed to the 95 occurrences of 'Spatial Thing' in the BP. 
> 
> Also add an abstract 2D example.
> 
> Glossary would read:
> 
> "Spatial thing: Anything with spatial extent (i.e. size, shape, or position) used for representing a spatial characteristic of a feature. Examples are: people, places, bowling balls, as well as abstract regions like polygons or cubes.[[http://www.isotc211.org/TC211_Multi-Lingual_Glossary-2016-06-28_Published.xls|ISO/TC 211 Multi-Lingual Glossary of Terms]]"
> 
> Chris Little
> Co-Chair, OGC Meteorology & Oceanography Domain Working Group
> 
> IT Fellow - Operational Infrastructures
> Met Office  FitzRoy Road  Exeter  Devon  EX1 3PB  United Kingdom
> Tel: +44(0)1392 886278  Fax: +44(0)1392 885681  Mobile: +44(0)7753 880514
> E-mail: chris.little@metoffice.gov.uk  http://www.metoffice.gov.uk
> 
> I am normally at work Tuesday, Wednesday and Thursday each week
> 
> 
> 
Received on Thursday, 4 May 2017 15:06:34 UTC

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