Corravila is represented as two separate entities in Logainm ( http://www.logainm.ie/en/3801 and http://www.logainm.ie/en/130953).
On Sun, May 29, 2016 at 1:04 PM, Patrick Matthews <[email protected]> wrote: > Corravilla: http://www.openstreetmap.org/relation/5705909 > > On Sun, May 29, 2016 at 12:50 PM, Patrick Matthews < > [email protected]> wrote: > >> Rory, Dave, >> >> My inclination is the opposite - there are plenty of situations where you >> have townlands "split" between civil parishes in exactly the same way as >> the ones you mention but where one "part" being in one ED and another in a >> different ED means that the two are shown as separate on the post-1898 >> maps. (There can also be false positives where two completely different >> townlands in different parishes but with the same name happen to be in the >> same ED, e.g. Corravilla in east Cavan, where two townlands, one in >> Shercock parish and one in Knockbride, happen to be in the same ED and are >> represented in the maps as a single townland, but have different postal >> addresses and are listed separately in the electoral register.) >> >> The methodology of the original Ordnance Survey, for what it's worth, was >> to treat each "part" of the townland as a separate entity, and they're >> still recorded as separate entities in the 1901 and 1911 census reports. >> >> Baronies split by counties (e.g. Fore, Rathdown) should be treated >> separately as they were/are county subdivisions. Civil parishes and >> baronies were always independent of each other so the split doesn't matter >> there. >> >> Regards, >> >> Paddy. >> >> >> On Sun, May 29, 2016 at 11:46 AM, Dave Corley <[email protected]> >> wrote: >> >>> I have a vague recollection of this being discussed way back. The issue >>> is >>> not just with townlands if I recall correctly. >>> >>> I think there may also be cp's split by baronies and baronies split by >>> counties and so on. >>> >>> Your logic seems sound to me, but then again I never got to doing cp's. >>> >>> Dave >>> On 29 May 2016 10:40, "Rory McCann" <[email protected]> wrote: >>> >>> > -----BEGIN PGP SIGNED MESSAGE----- >>> > Hash: SHA1 >>> > >>> > Hi all, >>> > >>> > A while ago I mentioned a possible problem with the Logainm data >>> > import, where 2+ townlands were getting the same logainm reference[1]. >>> > Upon closer investigation, I don't think this is a bug with the import >>> > process, but a question of "Is a townland is one townland or many >>> > townlands?". >>> > >>> > Consider Graiguealug townland in Carlow. It's in OSM as 3 different >>> > townlands: OSM ids https://www.openstreetmap.org/relation/2196774 >>> > https://www.openstreetmap.org/relation/2274862 >>> > https://www.openstreetmap.org/relation/2274863 all touching each >>> > other. Each is in a different civil parish[2]. >>> > >>> > However Logainm only has one entry http://www.logainm.ie/en/3531 which >>> > is in 3 different civil parishes. Logainm allows one townland to be in >>> > more than one CP. If you look at the GSGS map, only one townland is >>> > shown on the map, and the total area (~400 acres) is similar to the >>> > total off the 3 townlands in OSM. >>> > >>> > It looks like one townlands was split into 3 townlands so that each >>> > townland would be in one and only one CP. >>> > >>> > However I don't think this is the right approach. I think the OSM >>> > philosophy of "One Feature, One OSM Element"[3] should apply, and that >>> > those 3 townlands should be merged into 1. The CP boundaries should >>> > physically stay where they are, but they will not line up with a >>> > townland boundary. I seen other examples of townlands crossing CP >>> > boundaries and have mapped them as one townland, with a CP border >>> > going through the middle. >>> > >>> > I'm tempted to merge townlands like this into one townland. What do >>> > people think? >>> > >>> > Rory >>> > >>> > [1] >>> > >>> https://lists.openstreetmap.org/pipermail/talk-ie/2016-March/001499.html >>> > [2] Townlands.ie: >>> > >>> https://www.townlands.ie/carlow/forth/templepeter/templepeter/graiguealug/ >>> > >>> > >>> https://www.townlands.ie/carlow/forth/tullowmagimma/templepeter/graiguealug/ >>> > https://www.townlands.ie/carlow/forth/nurney/templepeter/graiguealug/ >>> > [3] https://wiki.openstreetmap.org/wiki/One_feature,_one_OSM_element >>> > -----BEGIN PGP SIGNATURE----- >>> > Version: GnuPG v2.0.22 (GNU/Linux) >>> > >>> > iQEcBAEBAgAGBQJXSri4AAoJEOrWdmeZivv2Lc8H/AoZcBrdbT3u5y2vvKBnKh8J >>> > BKP48p0sVAyMyDAWl3nQ88kqwuHcNcYYBt+aWwfDAeOyBs63OJQ1dlcw1+9EW3iL >>> > wxkauYKAvVNEd1m7sHBFWwIdxhmRUfinwrHyNhoIFL84/bExPAs4KCe1epFYwqNd >>> > hSFP5lnRuaikct5eEkP9uTr0tGDRkYLzwGOwcj30xZSz89dB786bc/YR834kgigi >>> > kYtjL6O+uEZ05Xb1M2kSyzR+LdmEW3tFYEu1RHjxlMKIgOedUAF0+RdEF0qOOmPe >>> > optVIDIyxFuTk0BTsqITb05uyPHss58zamz0ldnZBh0AqAg8JTQjxl9/IDxhFqw= >>> > =z0F7 >>> > -----END PGP SIGNATURE----- >>> > >>> > _______________________________________________ >>> > Talk-ie mailing list >>> > [email protected] >>> > https://lists.openstreetmap.org/listinfo/talk-ie >>> > >>> _______________________________________________ >>> Talk-ie mailing list >>> [email protected] >>> https://lists.openstreetmap.org/listinfo/talk-ie >>> >> >> > _______________________________________________ Talk-ie mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk-ie
