geo_address_lookup_sf: Address lookup API in 'sf' format

In nominatimlite: Interface with 'Nominatim' API Service

Address lookup API in sf format

Description

The lookup API allows to query the address and other details of one or multiple OSM objects like node, way or relation. This function returns the spatial object associated with the query using sf, see geo_address_lookup() for retrieving the data in tibble format.

Usage

geo_address_lookup_sf(
  osm_ids,
  type = c("N", "W", "R"),
  full_results = FALSE,
  return_addresses = TRUE,
  verbose = FALSE,
  nominatim_server = "https://nominatim.openstreetmap.org/",
  custom_query = list(),
  points_only = TRUE
)

Arguments

osm_ids	Vector of OSM identifiers as numeric (c(00000, 11111, 22222)).
type	Vector character of the type of the OSM type associated to each osm_ids. Possible values are node ("N"), way ("W") or relation ("R"). If a single value is provided it would be recycled.
full_results	Returns all available data from the API service. If FALSE (default) only address columns are returned. See also return_addresses.
return_addresses	Return input addresses with results if TRUE.
verbose	If TRUE then detailed logs are output to the console.
nominatim_server	The URL of the Nominatim server to use. Defaults to "https://nominatim.openstreetmap.org/".
custom_query	A named list with API-specific parameters to be used (i.e. list(countrycodes = "US")). See Details.
points_only	Logical TRUE/FALSE. Whether to return only spatial points (TRUE, which is the default) or potentially other shapes as provided by the Nominatim API (FALSE). See About Geometry Types.

Details

See https://nominatim.org/release-docs/latest/api/Lookup/ for additional parameters to be passed to custom_query.

Value

A sf object with the results.

About Geometry Types

The parameter points_only specifies whether the function results will be points (all Nominatim results are guaranteed to have at least point geometry) or possibly other spatial objects.

Note that the type of geometry returned in case of points_only = FALSE will depend on the object being geocoded:

• Administrative areas, major buildings and the like will be returned as polygons.

• Rivers, roads and their like as lines.

• Amenities may be points even in case of a points_only = FALSE call.

The function is vectorized, allowing for multiple addresses to be geocoded; in case of points_only = FALSE multiple geometry types may be returned.

See Also

geo_address_lookup().

Address Lookup API: geo_address_lookup()

Geocoding: geo_address_lookup(), geo_amenity(), geo_amenity_sf(), geo_lite(), geo_lite_sf(), geo_lite_struct(), geo_lite_struct_sf()

Get sf objects: bbox_to_poly(), geo_amenity_sf(), geo_lite_sf(), geo_lite_struct_sf(), reverse_geo_lite_sf()

Examples

# Notre Dame Cathedral, Paris

NotreDame <- geo_address_lookup_sf(osm_ids = 201611261, type = "W")

# Need at least one non-empty object
if (any(!sf::st_is_empty(NotreDame))) {
  library(ggplot2)

  ggplot(NotreDame) +
    geom_sf()
}

NotreDame_poly <- geo_address_lookup_sf(201611261,
  type = "W",
  points_only = FALSE
)


if (any(!sf::st_is_empty(NotreDame_poly))) {
  ggplot(NotreDame_poly) +
    geom_sf()
}

# It is vectorized

several <- geo_address_lookup_sf(c(146656, 240109189), type = c("R", "N"))
several

nominatimlite documentation built on Sept. 11, 2024, 7:47 p.m.