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Hi guys
First, a thousand thanks to Arno for his magic scenproc tool. It really is great.
I've had some success experimenting with the OSM shapefiles from Geofabrik. Next I wanted to try something more systematic: a complete set of autogen tiles for the whole of the UK.
For this purpose, I wanted to use the GIS data produced by Ordnance Survey, the UK's national mapping agency. The 'OS VectorMap District' product provides coverage for the whole of the UK at a scale of 1:15000. It is available in ESRI format, and includes separate layers with accurate polygons for every building and woodland in the country. Obviously this data is much more complete than the OSM equivalent at this time, and since 2010 it has been available free of charge for personal and commercial use as part of the UK government's OS OpenData initiative:
http://www.ordnancesurvey.co.uk/oswebsite/products/os-vectormap-district/index.html
The product is distributed in 100km-square tile zip-files (based on the OS UK grid system). Individual files are available on request from OS, but there are also cached copies to download here:
http://parlvid.mysociety.org:81/os/
As a test, I downloaded the 'TQ' file (London and the South-East) and imported the Woodland layer into QGIS. I cropped and saved a small test selection as a new UTF-8 WGS84 shapefile. I ran this shapefile through scenproc and although it loads correctly, scenproc seems to get stuck at the splitgrid stage, with no visible progress after several hours. I initially suspected this may be due to the higher definition of the polygons, but when I ran a similar test with only a single, simple polygon selection in the shapefile, the result is the same. I think therefore there must be a compatability issue which escapes me?
Would someone more knowledgeable than myself be kind enough to spare the time to have a look?
Test file: http://parlvid.mysociety.org:81/os/vmd-vector-2011-03/vmdvec_tq.zip
Tech spec: http://www.ordnancesurvey.co.uk/oswebsite/docs/user-guides/os-vectormap-district-user-guide.pdf
Many thanks!
Jeff Pollard
http://www.youtube.com/user/FreeTheRadio
First, a thousand thanks to Arno for his magic scenproc tool. It really is great.
I've had some success experimenting with the OSM shapefiles from Geofabrik. Next I wanted to try something more systematic: a complete set of autogen tiles for the whole of the UK.
For this purpose, I wanted to use the GIS data produced by Ordnance Survey, the UK's national mapping agency. The 'OS VectorMap District' product provides coverage for the whole of the UK at a scale of 1:15000. It is available in ESRI format, and includes separate layers with accurate polygons for every building and woodland in the country. Obviously this data is much more complete than the OSM equivalent at this time, and since 2010 it has been available free of charge for personal and commercial use as part of the UK government's OS OpenData initiative:
http://www.ordnancesurvey.co.uk/oswebsite/products/os-vectormap-district/index.html
The product is distributed in 100km-square tile zip-files (based on the OS UK grid system). Individual files are available on request from OS, but there are also cached copies to download here:
http://parlvid.mysociety.org:81/os/
As a test, I downloaded the 'TQ' file (London and the South-East) and imported the Woodland layer into QGIS. I cropped and saved a small test selection as a new UTF-8 WGS84 shapefile. I ran this shapefile through scenproc and although it loads correctly, scenproc seems to get stuck at the splitgrid stage, with no visible progress after several hours. I initially suspected this may be due to the higher definition of the polygons, but when I ran a similar test with only a single, simple polygon selection in the shapefile, the result is the same. I think therefore there must be a compatability issue which escapes me?
Would someone more knowledgeable than myself be kind enough to spare the time to have a look?
Test file: http://parlvid.mysociety.org:81/os/vmd-vector-2011-03/vmdvec_tq.zip
Tech spec: http://www.ordnancesurvey.co.uk/oswebsite/docs/user-guides/os-vectormap-district-user-guide.pdf
Many thanks!
Jeff Pollard
http://www.youtube.com/user/FreeTheRadio