[auscope-geosciml] RE : MappedFeature

Boisvert, Eric Eric.Boisvert at RNCan-NRCan.gc.ca
Wed May 11 05:33:52 EDT 2011


if voided, wouldn't it mean that the positionalAccuracy is "not known / not available" as opposed to "known but always the same" ?
 
What would be neat is to have some way at the beginning of a feature collection to declare default values for voided (or missing) properties.
 
Eric.
(cafeine kicking in)..
 
 

________________________________

De: auscope-geosciml-bounces at lists.arcs.org.au de la part de Laxton, John L.
Date: mer. 2011-05-11 05:19
À: Oliver Raymond
Cc: auscope-geosciml at lists.arcs.org.au
Objet : [auscope-geosciml] MappedFeature


Hi Ollie,
 
In the INSPIRE group there is some concern over the implications of the positionalAccuracy and resolutionScale properties of MappedFeature. At present as I understand it these are not voidable so require to be provided for every MappedFeature - which is potentially quite an overhead. In OneGeology-Europe we just hard-coded in values for particular services (so all MappedFeatures for a particular map service were given the same values), but clearly that is really just duplicating information that could be in the metadata. Could these properties be made voidable or have a (0..1) cardinality? In reality, at least where maps other than field maps are concerned, the positionalAccuracy and resolutionScale will always be the same for all MappedFeatures on a particular map.
 
John
 
 
John Laxton
British Geological Survey
Murchison House
West Mains Rd
Edinburgh, EH9 3LA
United Kingdom

Tel: +44 (0)131 667 1000
Fax: +44 (0)131 668 1535
email: jll at bgs.ac.uk
Web site: www.bgs.ac.uk <http://www.bgs.ac.uk/> 
Internet Shop: www.thebgs.co.uk <http://www.thebgs.co.uk/>  
 
 
 

-- 
This message (and any attachments) is for the recipient only. NERC 
is subject to the Freedom of Information Act 2000 and the contents 
of this email and any reply you make may be disclosed by NERC unless 
it is exempt from release under the Act. Any material supplied to 
NERC may be stored in an electronic records management system. 



More information about the GeoSciML mailing list