[OSM-talk-ie] Choice of grid
Paul Oldham
paul at the-hug.org
Tue Apr 25 11:56:26 UTC 2017
Folks, I could use some advice.
As I've mentioned here before we've put Irish tiles into our mapping
software, mainly based on OSM data. In the application we show grid
references and I'm aware that there's 2/3 Irish grid reference systems
which have been used in Ireland: historically you had
EPSG:29902/EPSG:29903 (which seem to be identical for our purposes) but
as I understand it you've now moved over to the Irish Transverse
Mercator (ITM) or EPSG:2157.
My questions are:
1. I'm assuming that OSI and OSNI maps are now all EPSG:2157. Is that
right?
2. Assuming I'm right does anyone still use EPSG:29902/3 or has everyone
now switched to using EPSG:2157 for quoting grid references?
TIA
--
Paul
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