Skip to contents

WFS INSPIRE: retrieve cadastral parcels

Source: R/wfs-cp.R
catrnav_wfs_get_parcels.Rd

Retrieves spatial cadastral parcel data from the Cadastre of Navarre WFS INSPIRE service. catrnav_wfs_get_parcels_bbox() retrieves features within the supplied bounding box. See Bounding box.

Usage

catrnav_wfs_get_parcels_bbox(x, srs = 4326, verbose = FALSE, count = NULL)

Source

SITNA – Catastro de Navarra

Arguments

x

Input defining the query area. See Bounding box. It can be:

  • A numeric vector of length 4 with the coordinates that define the bounding box: c(xmin, ymin, xmax, ymax).

  • An sf or sfc object from sf.

srs

The CRS to use for the query. Defaults to 4326. See Bounding box.

verbose

Logical. Whether to display informational messages.

count

A positive whole number specifying the maximum number of features to return. If NULL, the service default applies.

Value

An sf object. Returns NULL if the data cannot be retrieved.

Details

Responses are cached in the wfs_inspire_cache subdirectory of the catrnav_set_cache_dir() cache. Repeated queries reuse the cached file. Clear the cache with catrnav_clear_cache() to download fresh results.

API limits

The service returns a maximum of 5,000 features by default. Use count to request a smaller result.

Bounding box

When x is a numeric vector, make sure that srs matches the coordinate values. The function queries the bounding box in EPSG:25830, ETRS89 / UTM zone 30N, then transforms the result back to srs.

When x is an sf or sfc object, srs is ignored. The object's bounding box is used for the query and the result is transformed back to the input CRS. See sf::st_bbox().

See also

catrnav_atom_get_parcels() downloads all cadastral parcels for a municipality.

catrnav_wms_get_layer() retrieves a georeferenced map image rather than individual spatial features.

Query WFS INSPIRE services: catrnav_wfs_get_address_bbox(), catrnav_wfs_get_buildings_bbox()

Work with cadastral parcels: catrnav_atom_get_parcels(), catrnav_atom_get_parcels_db_all(), catrnav_wms_get_layer()

Examples

downtown <- c(-1.646812, 42.814528, -1.638036, 42.820320)

cp <- catrnav_wfs_get_parcels_bbox(downtown, srs = 4326)

library(ggplot2)

ggplot(cp) +
  geom_sf()