[Talk-GB] Newark on Trent mappers

[SK53]

Quick look (Nottingham, of course):

   - Polygons look OK
   - Many features missing (e.g., University of Nottingham Main Campus,
   both sites of Dunkirk Primary School
   - Old features present (e.g., Elms Primary School, closed prior to 2011)
   - Reasonably well attributed.

At the very least it could be used to hunt for missing schools (which I've
done a bit of in N Scotland using Food Hygiene data).

Jerry

On 24 November 2015 at 17:28, Christian Ledermann <
christian.ledermann at gmail.com> wrote:

> there is also the Layer Functional site from which things like School
> grounds could be extracted.
> As this layer does not have the issues as the buildings (school
> grounds of different schools are not merged:)
> an import may be more vluable.
>
> On 24 November 2015 at 16:53, Christian Ledermann
> <christian.ledermann at gmail.com> wrote:
> > can you send me (a link to) the tiffs, I'd like to have a look at them,
> > maybe there is a way to auto extract and compare buildings from that data
> >
> > On 24 November 2015 at 13:19, SK53 <sk53.osm at gmail.com> wrote:
> >> I've finally (after 8 months) got around to looking at the OpenMap Local
> >> buildings. I needed them for something else which caused me to download
> the
> >> SK data. I'll say more in a blog post, but for now here are two
> comparisons
> >> of OpenMap Local buildings with EA Lidar data (DSM-DTM & Z axis
> >> accentuated):
> >>
> >> Central Newark (note parish church bottom left):
> https://flic.kr/p/ARUvRv
> >> Residential area to E of town centre (note terraces):
> >> https://flic.kr/p/ARUvQP
> >>
> >> I've also put a few comparisons of Nottingham between OSM & OpenMap
> >> buildings.
> >>
> >> Generally I'd say that the OpenMap Local buildings, although better than
> >> VMD, still have some of the same problems, and particularly that very
> >> similar buildings (such as the terraced houses) may be shown
> differently, or
> >> that discrete buildings are merged in unpredictable ways. It's also a
> bit
> >> disappointing that the main medieval building, the parish church is just
> >> shown as a box. The Lidar data looks to have more promise as a base
> line for
> >> creating buildings. There may be scope to use the OpenMap Local
> buildings on
> >> a case-by-case basis where these clearly match the Lidar/Aerial
> imagery, or
> >> where the building shape is obviously simplified & can be improved
> (parish
> >> church again). I would advise not touching things like most of the
> housing
> >> and the merged buildings in the central retail areas. My experience with
> >> working with such data is that splitting & refining such buildings is
> often
> >> a lot more work than drawing them from scratch.
> >>
> >> I have Geotiffs for the DTM, DSM, their difference & hillshaded
> versions of
> >> the DSM & difference. However I have failed to get these to load in
> JOSM. If
> >> someone else know the trick do let me know.
> >>
> >> Regards,
> >>
> >> Jerry
> >>
> >>
> >>
> >>
> >> On 20 November 2015 at 13:03, Christian Ledermann
> >> <christian.ledermann at gmail.com> wrote:
> >>>
> >>> Hi,
> >>>
> >>> Are there any mappers in and around Newark on Trent?
> >>>
> >>> I'd like to import the "OS Open Map - Local - SK" for newark and liked
> >>> to have some other 'local eyes on it.
> >>>
> >>>
> >>>
> >>> --
> >>> Best Regards,
> >>>
> >>> Christian Ledermann
> >>>
> >>> Newark-on-Trent - UK
> >>> Mobile : +44 7474997517
> >>>
> >>> https://uk.linkedin.com/in/christianledermann
> >>> https://github.com/cleder/
> >>>
> >>>
> >>> <*)))>{
> >>>
> >>> If you save the living environment, the biodiversity that we have left,
> >>> you will also automatically save the physical environment, too. But If
> >>> you only save the physical environment, you will ultimately lose both.
> >>>
> >>> 1) Don’t drive species to extinction
> >>>
> >>> 2) Don’t destroy a habitat that species rely on.
> >>>
> >>> 3) Don’t change the climate in ways that will result in the above.
> >>>
> >>> }<(((*>
> >>>
> >>> _______________________________________________
> >>> Talk-GB mailing list
> >>> Talk-GB at openstreetmap.org
> >>> https://lists.openstreetmap.org/listinfo/talk-gb
> >>
> >>
> >
> >
> >
> > --
> > Best Regards,
> >
> > Christian Ledermann
> >
> > Newark-on-Trent - UK
> > Mobile : +44 7474997517
> >
> > https://uk.linkedin.com/in/christianledermann
> > https://github.com/cleder/
> >
> >
> > <*)))>{
> >
> > If you save the living environment, the biodiversity that we have left,
> > you will also automatically save the physical environment, too. But If
> > you only save the physical environment, you will ultimately lose both.
> >
> > 1) Don’t drive species to extinction
> >
> > 2) Don’t destroy a habitat that species rely on.
> >
> > 3) Don’t change the climate in ways that will result in the above.
> >
> > }<(((*>
>
>
>
> --
> Best Regards,
>
> Christian Ledermann
>
> Newark-on-Trent - UK
> Mobile : +44 7474997517
>
> https://uk.linkedin.com/in/christianledermann
> https://github.com/cleder/
>
>
> <*)))>{
>
> If you save the living environment, the biodiversity that we have left,
> you will also automatically save the physical environment, too. But If
> you only save the physical environment, you will ultimately lose both.
>
> 1) Don’t drive species to extinction
>
> 2) Don’t destroy a habitat that species rely on.
>
> 3) Don’t change the climate in ways that will result in the above.
>
> }<(((*>
>
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