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Subject: [OASIS Issue Tracker] (ODATA-965) UpdateGeoJSON Reference to RFC7946
[ https://issues.oasis-open.org/browse/ODATA-965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=63676#comment-63676 ]
Stefan Hagen commented on ODATA-965:
------------------------------------
Assigned issue to me to validate changes against the parts referenced to by our work products.
> UpdateGeoJSON Reference to RFC7946
> ----------------------------------
>
> Key: ODATA-965
> URL: https://issues.oasis-open.org/browse/ODATA-965
> Project: OASIS Open Data Protocol (OData) TC
> Issue Type: Improvement
> Components: OData JSON Format
> Affects Versions: V4.01_WD01
> Environment: [Proposed]
> Reporter: Stefan Hagen
> Assignee: Stefan Hagen
> Priority: Minor
> Fix For: V4.01_WD01
>
>
> The GeoJSON community submitted it's standard as an internet draft to IETF.
> This lead to the foundation of the IETF Geographic JSON Working Group (https://datatracker.ietf.org/wg/geojson/charter/).
> As of August, 11 2016 the GeoJSON specification now is the RFC 7946 (on the internet standards track).
> We should reference this one instead of the intermediate draft (after evaluation of the changes cited below from the RFC, Appendix B):
> Appendix B. Changes from the Pre-IETF GeoJSON Format Specification
> This appendix briefly summarizes non-editorial changes from the 2008
> specification [GJ2008].
> B.1. Normative Changes
> o Specification of coordinate reference systems has been removed,
> i.e., the "crs" member of [GJ2008] is no longer used.
> o In the absence of elevation values, applications sensitive to
> height or depth SHOULD interpret positions as being at local
> ground or sea level (see Section 4).
> o Implementations SHOULD NOT extend position arrays beyond 3
> elements (see Section 3.1.1).
> o A line between two positions is a straight Cartesian line (see
> Section 3.1.1).
> o Polygon rings MUST follow the right-hand rule for orientation
> (counterclockwise external rings, clockwise internal rings).
> o The values of a "bbox" array are "[west, south, east, north]", not
> "[minx, miny, maxx, maxy]" (see Section 5).
> o A Feature object's "id" member is a string or number (see
> Section 3.2).
> o Extensions MAY be used, but MUST NOT change the semantics of
> GeoJSON members and types (see Section 6).
> o GeoJSON objects MUST NOT contain the defining members of other
> types (see Section 7.1).
> o The media type for GeoJSON is "application/geo+json".
> B.2. Informative Changes
> o The definition of a GeoJSON text has been added.
> o Rules for mapping 'geo' URIs have been added.
> o A recommendation of the I-JSON [RFC7493] constraints has been
> added.
> o Implementers are cautioned about the effect of excessive
> coordinate precision on interoperability.
> o Interoperability concerns of GeometryCollections are noted. These
> objects should be used sparingly (see Section 3.1.8).
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