bfs_get_base_maps: Get Switzerland base maps data

In lgnbhl/BFS: Get Data from the Swiss Federal Statistical Office

Get Switzerland base maps data

Description

This functions helps to get base maps data from the ThemaKart project as an sf object. The geom names and the general structure of the files can be found in the offical BFS documentation, see https://www.bfs.admin.ch/bfs/en/home/statistics/regional-statistics/base-maps/cartographic-bases.html. When using this data, please read the condition of use and copyright mentions.

Usage

bfs_get_base_maps(
  geom = NULL,
  category = "gf",
  type = "Poly",
  date = NULL,
  most_recent = TRUE,
  format = "shp",
  asset_number = "30566934",
  return_sf = TRUE
)

Arguments

geom	Geometry such as "suis", "kant", "bezk", "polg", "voge", etc.
category	Category such as 'total_area' ("gf" for "Gesamtflaeche") or 'vegetation_area' ("vf" for "Vegetationsflaeche").
type	The type of data, i.e. "Poly" or "Pnts".
date	Date (yyyymmdd) of reference / validity. If not specified, the 'most_recent' argument is used.
most_recent	Get the most recent by sorting the files in decreasing order, if FALSE then read the first file available.
format	Format of the file, by default SHP format.
asset_number	Asset number of the base maps zip file.
return_sf	if TRUE, read file path and return sf object. If FALSE, return file path

Details

If you want to get ThemaKart data from previous years, you can change the 'asset_number' for the related zip file. For example, for the map set of year 2020, the asset number is "11927607".

This function is caching the base map data using 'tools::R_user_dir(package = "BFS")'.

Value

sf object with geometries. Returns NULL if no connection.

lgnbhl/BFS documentation built on Dec. 14, 2024, 3:06 a.m.