Hi Jerry,

Thanks very much for your reply. I will look into your suggestions.

I have been drawing polygons around my areas of interest (residential, 
industrial, commercial etc) in a GIS and I will look into adding these to OSM 
in time

Emma

________________________________
From: SK53 <[email protected]>
Sent: 01 July 2019 16:49
To: Rosenfeld, Emma
Cc: [email protected]
Subject: Re: [Talk-GB] Polygon Coverage of Cornwall

Hi Emma,

A quick look suggests lots of landuse//landcover has not been mapped in 
Cornwall, which is fairly typical of OpenStreetMap in general.

Given that you are using OpenMapTiles adding additional features to OSM is 
probably the quickest way to get things which you are interested in available 
in the tiles. This may not be too arduous if you are able to assume that blank 
areas default to farmland.

If you use OSM data direct (e.g., from Geofabrik and loaded it into PostGIS 
with osm2pgsql) or via geojson output from Overpass-Turbo and pull it into a 
GIS package you could infill the gaps with something like CORINE data. 
Obviously this is a long way from usable vector tiles, but probably gives you 
decent complete coverage more quickly. There are some helpful tabulations of 
how CORINE 
<https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwiki.openstreetmap.org%2Fwiki%2FCorine_Land_Cover%23Tagging&data=02%7C01%7CE.Rosenfeld%40exeter.ac.uk%7C22d747689b37454178d908d6fe3bc815%7C912a5d77fb984eeeaf321334d8f04a53%7C0%7C0%7C636975930046162048&sdata=kqf5PPlaQugHXWWkj%2FAFxUtnfN8tokxkIat6N0%2Bzboc%3D&reserved=0>
 and Urban 
Atlas<https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwiki.openstreetmap.org%2Fwiki%2FUser%3ASK53%2FUrban_Atlas&data=02%7C01%7CE.Rosenfeld%40exeter.ac.uk%7C22d747689b37454178d908d6fe3bc815%7C912a5d77fb984eeeaf321334d8f04a53%7C0%7C0%7C636975930046162048&sdata=%2FyO4EiO0KVFQRPqbnk9T%2FyXaAxLBBJ14jAVY1jAT%2Fq4%3D&reserved=0>
 data codes correspond to OSM tags on the wiki. I may also have additional 
residential/urban area polygons calculated from OSM which cover areas where 
there are no landuse=residential polygons.

HTH,

Jerry



On Mon, 1 Jul 2019 at 16:02, Rosenfeld, Emma 
<[email protected]<mailto:[email protected]>> wrote:
Hello all

I'm using OpenMapTiles for some mapping work in Cornwall and the information 
that they are providing is really great. I have downloaded the landuse and land 
cover layers but there are gaps in coverage. Does this mean that the polygons 
need creating or are there polygons in existence somewhere that need 
classifying?

Many thanks

Emma


Dr Emma Rosenfeld
Research Technician
Environment & Sustainability Institute
University of Exeter, Penryn Campus, Penryn, Cornwall, TR10 9FE, 
UK<https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fowa.exeter.ac.uk%2Fowa%2Fredir.aspx%3FC%3DbwYy5azoSU-eQhKkyRMRDqr3AVhZb88IFKNMOvWalNK2leAArrLF4-Oz9XZO3E7sLhLs2dfwmtU.%26URL%3Dhttp%253a%252f%252fwww.exeter.ac.uk%252fesi%252f&data=02%7C01%7CE.Rosenfeld%40exeter.ac.uk%7C22d747689b37454178d908d6fe3bc815%7C912a5d77fb984eeeaf321334d8f04a53%7C0%7C0%7C636975930046172046&sdata=p5zFNTRqnEQ8hdn%2Bga8WCtu2ZWs1uRnwtmyPbkbogFU%3D&reserved=0>

Working hours: Mon, Wed, Thurs


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