Use cases

[gatemezing]

In this paper of 2014, "Publishing Reference Geodata on the Web:
Opportunities and Challenges for IGN France" (https://event.cwi.nl/terracognita2014/terra2014_1.pdf), we described the reasons why we had to create an ontology for CRS. Below are summarized some of the reasons (8 years ago):

• A need to a machine readable registry for CRS used by IGN-France
• A better direct geometry location with a specific CRS
• the integration of any coordinate reference system (e.g. for allowing projected coordinates for cartographic purposes) in geoKG
• Dereferenceable URI used to identify CRS should use more intuitive names for non experts users
• semantic linking of data in different providers, such as the EPSG registry, the https://spatialreference.org/ initiative, IGN registry, and the Information and Service System for European Coordinate Reference Systems

There is a real need today to be able for proconsumers and tools on the Web to publish/consume spatially-located things using any CRS. You will notice that the mostly (re)used ontology https://lov.linkeddata.es/dataset/lov/vocabs/geo "Geo (WGS84 lat/long) Vocabulary" (https://www.w3.org/2003/01/geo/) assume only the use of WGS84 as it states the following:

This is a basic RDF vocabulary that provides the Semantic Web community with a namespace for representing lat(itude), long(itude) and other information about spatially-located things, using WGS84 as a reference datum.