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Update GML output for ISO 19111:2019 compliance #100

Open maccraymer opened 4 years ago

maccraymer commented 4 years ago

Update GML output of CRS items for compliance with the new ISO 19136:2020 (based on the new ISO 19111:2019).

RogerLott commented 4 years ago

ISO 19136:2007 clause 12 covers CRS gml based on 19111:2007 and the GML 3.2.x schema are based on that. Neither OGC or ISO have any plans to update it for the 19111: 2019. 19136:2020 definitely will not include any changes to clause 12. The only gml schema addressing the 19111:2019 revision of which I am aware is that for EPSG export of gml. There is an out of date download available at https://www.iogp.org/blog/epsg/upgrade-of-epsg-dataset-data-model/ getting that updated is proving challenging due to te covid work at home. The latest EPSG schema (v2.2 dated 2020-05-18, attached here) have a change to the definition of realizationMethod and will be made publicly available as soon as possible. EPSG-and-GML-3.2.1-schemas_v2-2_2020-05-18.zip

maccraymer commented 4 years ago

@RogerLott, thanks for the clarification! I see now there's a statement in the Intro saying "This document makes reference to ISO 19107:2003 and ISO 19111:2007 (withdrawn standards, replaced by 2019 versions) because this edition of ISO 19136-1 is still an XML implementation of the previous edition of ISO 19107 and other standards".

For now I've changed the title of this action item to "Update GML output for 19111:2019 compliance".