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pelias / wof-admin-lookup

Who's on First Admin Lookup for the Pelias Geocoder
https://pelias.io
MIT License
9 stars 23 forks source link

Use 'reversegeo' alt geometries #258

Open missinglink opened 5 years ago

missinglink commented 5 years ago

Some records have 'alternative geometries' for reverse geocoding which are significantly smaller in size and complexity. Supporting these polygons may help to reduce RAM usage:

eg: https://github.com/whosonfirst-data/whosonfirst-data-admin-nz/blob/master/data/856/333/45/85633345-alt-whosonfirst-reversegeo.geojson

stepps00 commented 5 years ago

For what it's worth, the "default" record should have a pointer to the reversegeo filename in it's properties. For this record of New Zealand (85633345), the record has the following property:

  reversegeo:geometry":"85633345-alt-whosonfirst-reversegeo.geojson"

Property info: https://github.com/whosonfirst/whosonfirst-properties/tree/master/properties/reversegeo

missinglink commented 5 years ago

@stepps00 how common/uncommon a thing is the reversegeo polygon? I'm guessing it's mostly relevant for country and possibly region records and even then it's not super common?