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82 lines
3.3 KiB
Markdown
82 lines
3.3 KiB
Markdown
# Sonoma County Building/Parcel/Address Import
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Based on https://github.com/Nate-Wessel/hamilton-import
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## Project Status
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For current project status see https://wiki.openstreetmap.org/wiki/Sonoma_County_Building_and_Address_Import
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### Screenshots
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Here is the project status as of Jan 13 2021.
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- 106,930 new buildings would be inserted with addresses (green) (non-conflated, with addresses)
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- 139,987 new buildings would be inserted without addresses (non-conflated, no address)
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- 18,867 buildings already exist with addresses and would not be inserted
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- 13,226 buildings already exist without addresses and would not be inserted
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## Obtaining Data
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`original_data` from:
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- https://gis-sonomacounty.hub.arcgis.com/datasets/2202c1cd6708441f987ca5552f2d9659
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- https://gis-sonomacounty.hub.arcgis.com/datasets/0f5982c3582d4de0b811e68d7f0bff8f
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- https://overpass-turbo.eu/
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Overpass query (you may save as OSM file, shapefile, or postgres sql dump depending on your overpass client)
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```
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area[name="Sonoma County"];
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(
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way[building](area);
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relation[building](area);
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);
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(._;>;);
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out;
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```
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If using an Overpass -> QGIS -> Postgres dump, save it as `osmquery_buildings_pgdump.sql` for later.
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Otherwise osm2pgsql should create tables like `son_polygon` for later.
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## Prerequisites
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The postgis package appropriate for the version of postgres server you have installed (in my case, 11)
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Ubuntu
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- sudo apt install postgresql-11 postgresql-11-postgis-3 shp2pgsql osm2pgsql
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Debian (shp2pgsql is included in postgis)
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- sudo apt install postgresql postgis osm2pgsql
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- The postgresql server started/running/configured and database `gis` created
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## Running
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- Run the following SQL as a superuser (postgres) inside the `gis` database to enable the PostGIS and hstore extensions: `CREATE EXTENSION postgis; CREATE EXTENSION hstore;`
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- Unzip the `original_data` and open a shell in that folder.
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- Here we are assuming that county data is in WGS84/EPSG4236 format, which was true as of last check and is also what OSM uses.
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- Run from your shell: `shp2pgsql -s 4326 -I Parcels__Public_.shp | psql -d gis -U postgres -W`
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- `shp2pgsql -s 4326 -I Sonoma_County_Building_Outlines.shp | psql -d gis -U postgres -W`
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- `shp2pgsql -s 4326 -I osm-buildings-01-03.shp | psql -d gis -U postgres -W`
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Now all the data is in Postgres. For processing and conflation, read through and execute `conflation.sql` as per your comfort level.
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### Internal Notes
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- http://download.geofabrik.de/north-america/us/california/norcal-latest.osm.pbf
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```
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shp2pgsql -s 4326 -I Parcels__Public_.shp | psql -d openstreetmap -U openstreetmap -W -h localhost -p 54321
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shp2pgsql -s 4326 -I Sonoma_County_Building_Outlines.shp | psql -d openstreetmap -U openstreetmap -W -h localhost -p 54321
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psql -d openstreetmap -U openstreetmap -W -h localhost -p 54321 -f osmquery-pgdump.sql
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#unused
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osm2pgsql -d gis -c --prefix son --slim --extra-attributes --hstore --latlong sonoma-orig-buildings-20201219.osm -U postgres -W`
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osm2pgsql -d openstreetmap -c --prefix son --slim --extra-attributes --hstore --latlong norcal-latest-20200103.osm.pbf -U openstreetmap -W -H localhost -P 54321
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```
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