Re: [OSM-talk-ie] Choice of grid
Hi, Most of my experience is in transport. Anything I've seen for use by the 'general public', like the Discovery series maps, seems to be Irish Grid. I suspect council town planning uses this also. Anything for 'professional' use, like MapRoad (online road management and maintenance database / interface) used by councils, seems to be ITM. Note that IG and ITM don't translate directly. Anything online seems to be digital degrees / GTFS. From a quick Google EPSG:29902/EPSG:29903 seem to be IG as used by OSi and OSNI. Colm --- Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has. Margaret Mead ___ Talk-ie mailing list Talk-ie@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-ie
Re: [OSM-talk-ie] Choice of grid
On 25/04/17 13:18, Donal Diamond wrote: Who are your users? - the public or gis-professionals? The public. Most non-professional people and outdoor enthusiasts would use Irish Grid EPSG:29903 (29903 replaces OSNI 1952 / Irish National Grid (code 29901) and TM65 / Irish Grid (code 29902).) Ta. That was my suspicion. OK, we'll support both then. -- Paul ___ Talk-ie mailing list Talk-ie@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-ie
Re: [OSM-talk-ie] Choice of grid
Who are your users? - the public or gis-professionals? Most non-professional people and outdoor enthusiasts would use Irish Grid EPSG:29903 (29903 replaces OSNI 1952 / Irish National Grid (code 29901) and TM65 / Irish Grid (code 29902).) Donal On 25 April 2017 at 12:56, Paul Oldham wrote: > 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 > > ___ > Talk-ie mailing list > Talk-ie@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-ie > ___ Talk-ie mailing list Talk-ie@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-ie
[OSM-talk-ie] Choice of grid
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 ___ Talk-ie mailing list Talk-ie@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-ie
