On 17-08-2023 13:39, Nikolai Fiikov wrote:
hi,
analysing content of
/modules/plugin/epsg-wkt/src/main/resources/org/geotools/referencing/epsg/wkt/epsg.properties
i came across different towg84 definitions for DATUM "Amersfoort",
epsg:6289.
see attached text file for space formatted comparison.
basically "28992=PROJCS["Amersfoort / RD New""
has differences compared to rest (62896405, 4289, 28991, 7415 and 7408).
would anyone have an idea what is the story behind it?
I guess these are the values provided in v9.6 of the EPSG database that
was used to update the files with
https://github.com/geotools/geotools/pull/2479 described in
https://osgeo-org.atlassian.net/browse/GEOT-5865
The values for 28992 are identical to those on https://epsg.io/28992
Note that epsg.io is not the authoritative party; but it is a far more
accessible than the EPSG at
https://epsg.org/crs_28992/Amersfoort-RD-New.html
Also note that 28992 has been redefined as derived from ETRS89 whereas
the others haven't afaik
-M
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