st_lucas.io.LucasIO

class LucasIO(url='https://geoforall.fsv.cvut.cz/st_lucas', version='1.1.0')

Bases: object

LUCAS features input / output class.

Parameters

• url (str) – WFS endpoint

• version (str) – WFS version to be used

Methods

count	Get number of downloaded LUCAS features.
download	Download LUCAS features from dedicated WFS server based on specified request request.LucasRequest.
download_images	Save images of LUCAS point into zip file.
get_images	Get images of selected point and its surroundings from Eurostat FTP server.
is_empty	Check whether downloaded LUCAS feature collection is empty.
to_geopandas	Get downloaded LUCAS features as GeoPandas GeoDataFrame structure.
to_gml	Get downloaded LUCAS features as OGC GML string.
to_gpkg	Save downloaded LUCAS features into OGC GeoPackage file.

Attributes

data
metadata	Get metadata.

count()

Get number of downloaded LUCAS features.

Return int

number of downloaded features

download(request)

Download LUCAS features from dedicated WFS server based on specified request request.LucasRequest.

Parameters

LucasRequest – request

download_images(images, save_dir)

Save images of LUCAS point into zip file.

Parameters

• images (dict) – dictionary with URLs of LUCAS point images received by get_images method

• save_dir (str) – directory path to save the downloaded images

Return str

path to created zip file

get_images(year, point_id, nuts0=None)

Get images of selected point and its surroundings from Eurostat FTP server.

Parameters

• year (int) – year of the measurement

• point_id (int) – id of the LUCAS point

• nuts0 (str) – NUTS0 code

Return images

dictionary of images (URL)

is_empty()

Check whether downloaded LUCAS feature collection is empty.

Return bool

True for empty collection otherwise False

property metadata

Get metadata.

Return dict

metadata dictionary

to_geopandas(epsg=3035)

Get downloaded LUCAS features as GeoPandas GeoDataFrame structure.

Parameters

epsg (int) – target EPSG code

Return GeoDataFrame

to_gml(epsg=3035)

Get downloaded LUCAS features as OGC GML string.

Parameters

epsg (int) – target EPSG code

Return str

GML string

to_gpkg(output_path, epsg=3035)

Save downloaded LUCAS features into OGC GeoPackage file.

Raises LucasDataError on failure.

Parameters

• output_path (str) – path to the output OGC GeoPackage file

• epsg (int) – target EPSG code