Get GISCO coastlines sf polygons — gisco_get

Downloads worldwide coastlines

Usage

gisco_get_coastallines(
  year = "2016",
  epsg = "4326",
  cache = TRUE,
  update_cache = FALSE,
  cache_dir = NULL,
  verbose = FALSE,
  resolution = "20"
)

Source

https://gisco-services.ec.europa.eu/distribution/v2/

Arguments

year

Release year. One of "2006", "2010", "2013" or "2016".

epsg

projection of the map: 4-digit EPSG code. One of:

"4258": ETRS89
"4326": WGS84
"3035": ETRS89 / ETRS-LAEA
"3857": Pseudo-Mercator

cache

A logical whether to do caching. Default is TRUE. See About caching.

update_cache

A logical whether to update cache. Default is FALSE. When set to TRUE it would force a fresh download of the source .geojson file.

cache_dir

A path to a cache directory. See About caching.

verbose

Logical, displays information. Useful for debugging, default is FALSE.

resolution

Resolution of the geospatial data. One of

"60": 1:60million
"20": 1:20million
"10": 1:10million
"03": 1:3million
"01": 1:1million

Value

A sf

POLYGON object.

Note

Please check the download and usage provisions on gisco_attributions().

About caching

You can set your cache_dir with gisco_set_cache_dir().

Sometimes cached files may be corrupt. On that case, try re-downloading the data setting update_cache = TRUE.

If you experience any problem on download, try to download the corresponding .geojson file by any other method and save it on your cache_dir. Use the option verbose = TRUE for debugging the API query.

For a complete list of files available check gisco_db.

Examples

coast <- gisco_get_coastallines()

library(ggplot2)

ggplot(coast) +
  geom_sf(color = "#1278AB", fill = "#FDFBEA") +
  # Zoom on Caribe
  coord_sf(
    xlim = c(-99, -49),
    ylim = c(4, 30)
  ) +
  theme_minimal() +
  theme(
    panel.background = element_rect(fill = "#C7E7FB", color = NA),
    panel.border = element_rect(colour = "black", fill = NA)
  )

Get GISCO coastlines `sf` polygons