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cyipt / actdev

ActDev - Active travel provision and potential in planned and proposed development sites
https://actdev.cyipt.bike
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Create buildings from OS open Zoomstack data #88

Open Robinlovelace opened 3 years ago

Robinlovelace commented 3 years ago

As discussed with @mem48

https://osdatahub.os.uk/downloads/open

And https://www.wisemover.co.uk/carbon/os.html

Could reduce need for procgen very cool.

mem48 commented 3 years ago

The version I hosted doesn't include the full zoom. The max zoom includes building polygons

image

dabreegster commented 3 years ago

Very neat! Ideally these could be imported into OSM, if the license allows for it. I found https://wiki.openstreetmap.org/wiki/Ordnance_Survey_OpenData, but haven't dug in.

mem48 commented 3 years ago

You can download it as a GeoPackage and extract the buildings_local layer

mem48 commented 3 years ago

@dabreegster Its open government licence data, but I think the OSM community doesn't want to use it as they are low-res polygons. good for the base map but not as good as the properly traced buildings in OSM. But for places where OSM has no buildings are better than nothing.

dabreegster commented 3 years ago

@mem48 Thanks for clarifying why it's not in OSM! I should be able to parse the GeoPackage and use to augment what's in OSM instead of doing the procedural generation. But as Robin prudently labeled, not a priority yet.

mvl22 commented 3 years ago

Ah very good point! I'd completely forgotten about these. It should be pretty good data (though as you say, imperfect geometries).

Ironically these have been in the alpha app all along, in the form of the "OS outdoor" layer, which gives 3D buildings...

Presumably ogr2ogr can convert the GeoPackage layer and convert to GeoJSON.

mem48 commented 3 years ago

@mvl22 yes, or I could extract it as a geojson for you if that would help.