[Esip-documentation] Geospatial Bounds

[David Neufeld - NOAA Affiliate via Esip-documentation]

Round 3....

geospatial_bounds:
Describes geospatial extent using geometric objects (2D or 3D) defined by
the Well-Known Text (WKT) format.  geospatial_bounds values are always
latitude (decimal degrees_north),  longitude (decimal degrees_east),
altitude (meters, up).  Like the  geospatial_lon/lat_min/max attributes,
these are typically approximate values.  If possible, it is recommended
that coordinates be provided using WGS84 (EPSG:4326 for 2D and EPSG:4979
for 3D); Example: POLYGON ((-111.29 40.26, -110.79 41.26, -110.29 41.26,
-110.79 40.26, -111.29 40.26))

Dave


On Tue, Sep 23, 2014 at 7:38 AM, Aleksandar Jelenak via Esip-documentation <
esip-documentation at lists.esipfed.org> wrote:

> On 9/22/14, 11:11 PM, "Cluster Documentation"
> <esip-documentation at lists.esipfed.org> wrote:
> >How about the WGS-84 CRS (EPSG code: 4326)? This CRS prescribes that
> >order of
> >coordinates be latitude, longitude, altitude.
>
> Need to correct myself… there are two WGS-84 CRSs to support:
>
> 1) For 2D geometric objects the CRS is EPSG:4326
> (http://www.epsg-registry.org/export.htm?wkt=urn:ogc:def:crs:EPSG::4326)
>
> 2) For 3D geometric objects the CRS is EPSG:4979
> (http://www.epsg-registry.org/export.htm?wkt=urn:ogc:def:crs:EPSG::4979)
>
>
>         -Aleksandar
>
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