[auscope-geosciml] GeoSciML Thematic View schema - call for feedback

Tellez-Arenas Agnes a.tellez-arenas at brgm.fr
Wed Sep 15 03:52:40 EDT 2010

A first question.
I understand that gsmltv:geologicHistory (concat value YES) represents several attributes that are concatenated.
But what if there are several geologicHistory?
For gsmltv:lithology, I guess that if there are several compositionPart, all the lithologies are concatenated, without role and proportion?
 Thanks for this work!
Best regards


De : auscope-geosciml-bounces at lists.arcs.org.au [mailto:auscope-geosciml-bounces at lists.arcs.org.au] De la part de Alistair Ritchie
Envoyé : mercredi 15 septembre 2010 03:43
À : AuScope-GeoSciML
Objet : [auscope-geosciml] GeoSciML Thematic View schema - call for feedback


The lack of a thematic map or portrayal model that could be easily deployed in the current generation of web map services (be they OGC or Google or ... ? ... services) has long been recognised as a problem in GeoSciML. At the Rome IWG meeting the group moved to develop a schema that defined GeoSciML compatible map layers for simple map services (meeting note <https://www.seegrid.csiro.au/twiki/bin/view/CGIModel/RomeF2FModelDesignMeetingNotes#14_Portrayal_classes_in_GeoSciML> , TWiki overview <https://www.seegrid.csiro.au/twiki/bin/view/CGIModel/GeoSciMLThematicView> ). Broadly speaking the intent is to promote:

1.	a consistent interface to web map data; 
2.	the widespread us of controlled vocabularies in thematic mapping;
3.	the ability to share thematic mapping tools such as SLDs between map services and clients to allow simple map query and display use cases ('show me all units coloured by their lithology', ' show me all units that contain sandstone'); 
4.	provide a very simple entry level to the GeoSciML world, introducing the concepts of mapping to community defined vocabularies and understanding the full GeoSciML model.

The primary result of this work will be a GML application schema that conforms to level 0 of the Simple Features Profile for GML (SF). It is a denormalised view of GeoSciML that corresponds to a GIS layer (one record per geometry) and can be used for portrayal and thematic mapping purposes.

While it has been harmonized with GeoSciML (consistent naming conventions, broad mapping of properties) it is a schema in it own right. It  not a SF level 0 profile of GeoSciML, is not intended as a basis for setting up simple GeoSciML Web Feature Services, and is not intended as a simple query interface to GeoSciML. It is solely for representing geological features in simple map clients using simple map services.


An initial skeleton of a model has been compiled based on existing WMS layers (GeoScience Victoria and Arizona Geological Survey) and feedback from participants at the Rome meeting. Tables summarising the proposed layers have been posted here:

We need feedback from a much broader group and invite interested parties to comment on the model and suggest changes where necessary. At the end of October a release candidate schema will be produced and tested as part of Testbed 4.

We look forward to your feedback.


Alistair Ritchie
Department of Primary Industries | Melbourne, Victoria, Australia
Tel: +61 3 9658 4512 | Fax: +61 3 9658 4555

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