I’m all for using a polygon per field, but am unsure what to do at the boundaries. Do I make 2 field polygons meet? Or leave a gap as there’s a track/hedge/fence/small coppice/ ditch/drain ? I’m probably not going to be able to map the boundary particularly accurately in a first pass, so would rather omit than put in inaccurate barriers
Any suggestions? Gareth > On 16 Dec 2019, at 11:38, Tony OSM <tonyo...@gmail.com> wrote: > > Mapping Fields - preferred method I think is individual fields, or at least > polygons which are based on road or natural boundaries. Mea Culpa - I have > also mapped farmland as larger polygons. > > Large polygons make life difficult when a field changes use - near where I > live it becomes scrub for several years before being developed for > housing/industrial/retail. > >> On 16/12/2019 10:21, Philip Barnes wrote: >>> On Monday, 16 December 2019, David Groom wrote: >>> ------ Original Message ------ >>> From: "Dave F via Talk-GB" <talk-gb@openstreetmap.org> >>> To: talk-gb@openstreetmap.org >>> Sent: 14/12/2019 15:54:13 >>> Subject: Re: [Talk-GB] What is farmland? >>> >>>> On 14/12/2019 15:19, Martin Wynne wrote: >>>>> Is this "farmland"? >>>>> >>>>> http://85a.uk/haws_hill_960x600.jpg >>>> I would say yes, as I believe both arable & livestock is farmland. >>>> >>>> I concur with your frustration about 'huge multi polygons', especially >>>> when joined to other features such as roads & rivers. I believe a few >>>> mappers were keen to fill in the gaps rather than map accurately. >>>> Personally I think there should be one polygon per field, but I admit that >>>> makes for a lot more work. >>>> >>> I see no benefit to mapping individual fields as separate polygons >>> tagged as farmland if adjacent fields are also farmland. Could you >>> explain why you think this is best? >>> >>> David >>> >> Large polygons make future editing very difficult. >> >> It is very beneficial to differentiate between arable, pasture and hopefully >> we can get real meadow back from the misuse it has received. >> >> Farming use changes, mapping individual fields allows farmland types or >> other changes to be maintained far easier than if it is part of a huge >> polygon. >> >> All in all it goes to make for a better more usable map. >> >> Phil (trigpoint) > > _______________________________________________ > 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
