Re: [Talk-GB] Holes in modern England?
On 31/10/2020 08:04, Martin Wynne wrote: The NLS historic 25" georeferenced map first looks on the server for tiles from the County Series maps. If that returns a 404 Not Found error (presumably because the sheet wasn't available when the rest were scanned), it then looks on the server for the same tile from the "Holes England" map to fill in the gap. Yes. I look at these quite a lot. There is more than one holes layer, I believe: the ones I have on my list are england_holes, holes_england, and holes2. You can configure OSMAnd to show three of these layers at once (usually county plus two of the holes layers), which is quite useful. -- Steve -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ___ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Holes in modern England?
I think I have now worked this out. The NLS historic 25" georeferenced map first looks on the server for tiles from the County Series maps. If that returns a 404 Not Found error (presumably because the sheet wasn't available when the rest were scanned), it then looks on the server for the same tile from the "Holes England" map to fill in the gap. These appear to be from later OS revisions, but are available only for the locations shown as blank patches at: https://geo.nls.uk/mapdata3/os/25_inch/holes_england/#holes_england_new/ol3 Hopefully if/when they get enough of these scans, these later 25" revisions will become available as a separate map on the web site. cheers, Martin. ___ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Holes in modern England?
One of the "holes" contains the town of Kidderminster. Looking at it on the full 25" map, that sheet is from the 1921 revision, the surrounding sheets are from the 1901 revision: https://maps.nls.uk/geo/explore/#zoom=17=52.38277=-2.24342=168=7 Which may explain the holey map, as a record of which revision is where. Or not. Martin. ___ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Holes in modern England?
Considering it's called "holes map" I think it is meant to have the gaps. -- 30 Oct 2020, 20:52 by mar...@templot.com: > On 30/10/2020 20:34, ipswichmap...@tutanota.com wrote: > >> If this is referring to what I posted earlier, then you have chosen a >> different map to what I linked. >> > > Hi, > > No it's a separate issue. I was browsing the NLS site when Firefox threw an > error. I clicked "Try again" and the holey map appeared. It seems to be an > extract from the normal 25" georeferenced map, but to what end I can't fathom. > > cheers, > > Martin. > > ___ > Talk-GB mailing list > Talk-GB@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-gb > ___ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Holes in modern England?
On 30/10/2020 20:34, ipswichmap...@tutanota.com wrote: If this is referring to what I posted earlier, then you have chosen a different map to what I linked. Hi, No it's a separate issue. I was browsing the NLS site when Firefox threw an error. I clicked "Try again" and the holey map appeared. It seems to be an extract from the normal 25" georeferenced map, but to what end I can't fathom. cheers, Martin. ___ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Holes in modern England?
If this is referring to what I posted earlier, then you have chosen a different map to what I linked. Here is the London grid map displayed using what you did: https://geo.nls.uk/mapdata3/os/ldn_tile/#ldn_nat_grid/ol3 On the right, it shows background imagery. "OpenLayers3" in a map of OSM, although you can display this NLS imagery over google maps, or leaflet, or "google maps API". Don't know what the "holes map" which you linked was however. It doesn't show house numbers but seems to have more coverage. ___ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Holes in modern England?
On Fri, 30 Oct 2020, 18:53 Jez Nicholson, wrote: > How many holes in Blackburn, Lancashire? > There's Tockholes for one https://www.openstreetmap.org/node/29020280 > ___ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Holes in modern England?
How many holes in Blackburn, Lancashire? On Fri, 30 Oct 2020, 18:36 Martin Wynne, wrote: > p.s. I've now discovered an overlay slider top-right which makes a bit > more sense. > > The slider is almost invisible over the map in Firefox. > > Martin. > > ___ > Talk-GB mailing list > Talk-GB@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-gb > ___ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Holes in modern England?
p.s. I've now discovered an overlay slider top-right which makes a bit more sense. The slider is almost invisible over the map in Firefox. Martin. ___ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
[Talk-GB] Holes in modern England?
Anyone care to explain what's going on here: https://geo.nls.uk/mapdata3/os/25_inch/holes_england/#holes_england_new/ol3 It displays the OSM basic map (without attribution), with some random blank patches (see for example a large area north-west of Oxford). If you zoom in on the blank patches, they turn out to contain historic 25"/mile mapping from the NLS. Puzzled. Martin. ___ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
