acdc.database.saa_distance.Distance3dPointTo3dPolygon

Distance3dPointTo3dPolygon(lat, lon, geom)[source]

Calculate the closest distance between a latitude-longitude query point and a shapely polygon defined by latitude-longitude points using only spherical mathematics.

Parameters:

  • lat (float) – Latitude of query point in degrees

  • lon (float) – Longitude of query point in degrees

  • geom (shapely geometry) – A shapely geometry whose points are in latitude-longitude space

Returns:

dist (float) – The minimum distance in kilometres between the polygon and the query point.