[Talk-us] Available Building Footprints Date: March 28, 2017 at 2:06:33 AM PDT

Denis Carriere carriere.denis at gmail.com
Tue Mar 28 15:48:26 UTC 2017


Instead of having tons of different people trying to attempt loading all of
these 8 Million buildings, we shoul collectively start an import proposal
(OSM wiki, draft a plan, set up tasking managers, pre-process data, host
entire dataset, etc...).

The best/easiest solution we (OSM Ottawa) did for importing 1M+ buildings
was to convert the data into GeoJSON and then convert them into VectorTiles
using Tippecanoe [0] and host them using our own custom server (Micro Data
Service [1]) which hosts those vector tiles into OSM & GeoJSON. After all
the "hard work" is done.. you can simply add those small chunks of data
with JOSM using any Tasking Manager by adding the URL [2] in Extra
Instructions. An example of a final OSM tile would look like this [3] which
would be ready to import (semi-manually).

There's also integration with QA-Tiles [4] to prevent loading any duplicate
data (this feature requires continuously loading the most current QA-Tile
during the import process).

*Summary: *Before anyone attempts to import this data, we need to create a
plan first. I'm more than willing to help out, but this would be a large
task and would need to be done collectively as a group.

[0] https://github.com/mapbox/tippecanoe
[1] https://github.com/osmottawa/micro-data-service
[2]
http://localhost:8111/import?new_layer=true&url=https://data.osmcanada.ca/{z}/{x}/{y}/ottawa-buildings.osm
[3] https://data.osmcanada.com/15/9478/21019/ottawa-buildings.osm
[4] https://osmlab.github.io/osm-qa-tiles/

*~~~~~~*
*Denis Carriere*
*GIS Software & Systems Specialist*

On Tue, Mar 28, 2017 at 11:00 AM, OSM Volunteer stevea <
steveaOSM at softworkers.com> wrote:

> Hi Nathan:
>
> I've got pretty beefy hardware, but the "Bay Area" shapefile pointed to by
> your recent post chokes my JOSM to a gasping strangle:  >3.7 million
> objects?!  These need to be broken up further to smaller files, to either
> the county level or even smaller to a sub-county level, in a sane way.  You
> may as well save them as .osm files (and host them on some other place
> besides a Microsoft cloud), as shapefiles still remain a "foreign" (though
> importable) format within OSM.
>
> SteveA
> California
>
>
> > On Mar 28, 2017, at 5:00 AM, talk-us-request at openstreetmap.org wrote:
> >
> > https://wiki.openstreetmap.org/wiki/Available_Building_Footprints
>
>
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> Talk-us mailing list
> Talk-us at openstreetmap.org
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