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Public Repository for the OGC GeoSPARQL Standards Working Group
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DGG versus DGGS #137

Closed kjano closed 2 years ago

kjano commented 3 years ago

This is a tiny issue, but shouldn't this be either DGG or "A textual serialization of a Discrete Global Grid System (DGGS) geometry object."? IMHO, I would go with DGG in general. Jano

dggsWktLiteral a rdfs:Datatype ; rdfs:isDefinedBy geosparql: , geosparql-spec: ; skos:definition """A textual serialization of a Discrete Global Grid (DGGS) geometry object."""@en ; skos:example """ "https://w3id.org/dggs/auspix OrdinateList (R3234)"^^http://www.opengis.net/ont/geosparql#dggsWktLiteral""" ; skos:prefLabel "DGGS Well-Known Text Literal"@en ;

FransKnibbe commented 3 years ago

@kjano: well spotted. Something needs to change.

The latest definitions I could find:

DGG: set of cells at the same refinement level that uniquely and completely cover a globe. DGGS: integrated system comprising a hierarchy of discrete global grids , spatio-temporal referencing by zonal identifiers and functions for quantization zonal query, and interoperability.

I take this to mean that a DGG geometry object would be limited to one refinement level. From the discussion in issue 112 I have understood that refinement levels can be mixed for a single DGG(S) geometry. So if I have understood everything well enough, we should keep it at DGGS and insert "System" (I will do so now in PR 136).

jabhay commented 2 years ago

This comment pertains to a property we've already changed.