[auscope-geosciml] Borehole gsml:coredInterval GM_Envelope vs GM_Object [SEC=UNCLASSIFIED]

Oliver.Raymond at ga.gov.au Oliver.Raymond at ga.gov.au
Thu Jan 20 21:30:40 EST 2011

..another email that slipped through in my Xmas email storm...

Bruce, did you get a reply from anyone on this?  I don't recall any decision on this at Rome.  We talked about borehole surveys vs gml:curve, but not about your question as I recall.

Having said that, I think your proposal is to change the data type is correct.  I'm not sure why we modelled CoredInterval as gml:Envelope.  Is there a member of the Boreholes subgroup (from circa Melbourne 2007) that can tell us the reason why gml:Envelope was used (or if it is just an error).



Ollie Raymond

National Geological Maps and Data Standards Project
Geoscience Australia<blocked::http://www.ga.gov.au/minerals/research/national/nat_maps/nat_geol_maps.jsp>

Interoperability Working Group
IUGS Commission for the Management and Application of Geoscience Information

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From: auscope-geosciml-bounces at lists.arcs.org.au [mailto:auscope-geosciml-bounces at lists.arcs.org.au] On Behalf Of Bruce.Simons at dpi.vic.gov.au
Sent: Monday, 22 November 2010 9:45 AM
To: auscope-geosciml at lists.arcs.org.au
Subject: [auscope-geosciml] Borehole gsml:coredInterval GM_Envelope vs GM_Object

The discussion on the TWiki on GM_Envelope vs GM_Object for gsml:coredInterval has:

"For sa:shape and gsml:shape we have used GM_Object, which allows the use of gml:LineString. For gsml:coredInterval we have used GM_Envelope which allows gml:Envelope. gml:LineString allows gml:id as well as srsName, whereas gml:Envelope doesn't allow gml:id. This precludes referring to the same geometries described in the Observations (see "Multiple Properties" discussion above).

More importantly it requires gml:lowerCorner and gml:upperCorner, rather than the two gml:pos values gml:LineString uses. This is inconsistent and wrong, the gsml:coredInterval should be treated the same as the Observation interval."

My recollection from Rome was we decided to change the data type on coredInterval. Is this correct?

Bruce Simons

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