[OSM-talk-ie] Irish boundaries map layer updates

[Dave Corley]

Completely agree, this is fantastic

Can I ask, is it possible to make all layers appear on the same zoom
levels, e.g. The cp's can't be viewed when zoomed out far enough to see the
whole island.
On 27 Mar 2015 20:19, "Dave Foley" <dafo43 at outlook.ie> wrote:

> Great work Donal, that's really useful for checking mistakes with the
> boundaries.
>
> Dafo
>
> > Date: Thu, 26 Mar 2015 22:53:43 +0000
> > From: donal.diamond at gmail.com
> > To: talk-ie at openstreetmap.org
> > Subject: [OSM-talk-ie] Irish boundaries map layer updates
> >
> > The map layers showing Irish boundaries is now updated every 15 minutes.
> >
> > This includes county/barony/civil parish/ed and townlands.
> >
> > The map server starts updates at 05/20/35/50 minutes past the hour and
> > should have all Irish edits up to 00/15/30/45 minutes past respectively.
> > Updates should take about 2 minutes.
> >
> > I also updated the townland layer to show area in fractional acres from
> > zoom 14 onwards. This may help you compare the acreage value shown on the
> > GSGS3906 maps to help spot obvious errors.
> >
> > For example, I picked a spot at random below and you can see that there
> are
> > a few areas that have the wrong acreage due to some townlands being
> missed:
> >
> >
> http://maps.openstreetmap.ie/oocmaps.html?zoom=15&lat=53.71215&lon=-6.91047&layers=000B0TFFFFTFFF
> >
> > eg Barfordstown is reported as 482 acres as we actually included  two
> > townlands Barfordstown 283 acres and Boolies 198 acres. There's a similar
> > issue with Calliaghstown nearby.
> >
> > When comparing fractional acres and  ARP (acres,roods, perches) on the
> map,
> > bear in mind that:
> > 1 acre = 4 roods
> > 1 rood = 40 perches
> >
> > You'll also notice a small difference in the acreage size reported by
> > townlands.ie and the map layer. That is due to the map layer
> transforming
> > to Irish Grid when calculating the area to get a slightly more accurate
> > calculation. Townlands.ie has to do a lot more analysis so uses a
> different
> > spatial reference system.
> >
> > Anyway hope it helps.
> >
> > D
> > _______________________________________________
> > Talk-ie mailing list
> > Talk-ie at openstreetmap.org
> > https://lists.openstreetmap.org/listinfo/talk-ie
>
> _______________________________________________
> Talk-ie mailing list
> Talk-ie at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/talk-ie
>