[PROJ] Any EPSG code for visualization order WGS84(s)?

[Roger Bivand]

On Sun, 6 Sep 2020, Even Rouault wrote:

> On dimanche 6 septembre 2020 15:00:40 CEST Roger Bivand wrote:
>> Thanks, Even and Alan,
>
> Adding back the list
>
>>
>> I didn't know about OGC:CRS84, and should have. However, I see the
>>
>> confusing:
>>> cat(wkt(CRS(SRS_string="urn:ogc:def:crs:OGC:1.3:CRS84")), "\n")
>>
>> GEOGCRS["WGS 84 (CRS84)",
>>      DATUM["World Geodetic System 1984",
>>          ELLIPSOID["WGS 84",6378137,298.257223563,
>>              LENGTHUNIT["metre",1]]],
>>      PRIMEM["Greenwich",0,
>>          ANGLEUNIT["degree",0.0174532925199433]],
>>      CS[ellipsoidal,2],
>>          AXIS["geodetic longitude (Lon)",east,
>>              ORDER[1],
>>              ANGLEUNIT["degree",0.0174532925199433]],
>>          AXIS["geodetic latitude (Lat)",north,
>>              ORDER[2],
>>              ANGLEUNIT["degree",0.0174532925199433]],
>>      USAGE[
>>          SCOPE["unknown"],
>>          AREA["World"],
>>          BBOX[-90,-180,90,180]],
>>      ID["OGC","CRS84"]]
>>
>> usage node, with a counter-intuitive ordering of the bounding box. Is this
>> a problem in terms of coordinate operation look-up?
>
>> Or are GEOGCRS BBOX
>> minlat, minlon, maxlat, maxlon by definition, irrespecctive of axis order?
>
> Exactly the later. See
> http://docs.opengeospatial.org/is/18-010r7/18-010r7.html#33
>

Thanks again, I'd also been puzzled that EPSG:4326 after switching to 
GIS/visualization order still had such a BBOX.

Might OGC:NAD83 and OGC:NAD27 be added to the PROJ db, as they similarly 
appear to resolve the axis order issue for EPSG:4269 and EPSG:4267? Their 
identifiers actually seem to be OGC:CRS83 and OGC:CRS83 in 
http://www.opengis.net/def/crs/OGC/1.3, but am unsure why.

Roger

>

-- 
Roger Bivand
Department of Economics, Norwegian School of Economics,
Helleveien 30, N-5045 Bergen, Norway.
voice: +47 55 95 93 55; e-mail: Roger.Bivand at nhh.no
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