defaults: Set, get and reset 'basemaps' defaults

defaultsR Documentation

Set, get and reset basemaps defaults

Description

These functions set, get or reset the defaults of all map arguments passed to basemap and associated functions.

Usage

set_defaults(
  ext = NULL,
  map_service = NULL,
  map_type = NULL,
  map_res = NULL,
  map_token = NULL,
  map_dir = NULL
)

get_defaults()

reset_defaults()

Arguments

ext

extent to be covered by the basemap as any spatial class supported by st_bbox.

map_service

character, a map service, either "osm", "carto" or "mapbox". Default is "osm".

map_type

character, a map type, e.g. "streets". For a full list of available map types, see get_maptypes.

map_res

numeric, resolution of base map in range from 0 to 1.

map_token

character, authentication token for services that require registration, which are "osm_stamen", "osm_stadia", "osm_thunderforest" and "mapbox". Register at https://stadiamaps.com/ (for stamen and stadia), https://www.thunderforest.com/ and/or https://www.mapbox.com/ to get tokens. Ignored for all other map services.

map_dir

character, cache directory where downloaded basemap tiles will be stored. By default, a temporary directory is used, which is destroyed when the session is terminated.

Value

For get_defaults, a list of defaults, otherwise none.

Examples

library(basemaps)
data(ext)

# set defaults for the basemap
set_defaults(ext = ext, map_service = "osm", map_type = "terrain_bg")

# get defaults
get_defaults()

## Not run: 
# load and return basemap map as raster (default)
map <- basemap()

## End(Not run)

# reset defaults
reset_defaults()


basemaps documentation built on May 29, 2024, 10:29 a.m.