esp_move_can: Displace a 'sf' object located in the Canary Islands

In dieghernan/mapSpain: Administrative Boundaries of Spain

Displace a sf object located in the Canary Islands

Description

Helper function to displace an external sf object (potentially representing a location in the Canary Islands) to align it with the objects provided by sf with the option moveCAN = TRUE.

Usage

esp_move_can(x, moveCAN = TRUE)

Arguments

x	An sf object. It may be sf or sfc object.
moveCAN	A logical TRUE/FALSE or a vector of coordinates c(lat, lon).

Details

This is a helper function that intends to ease the representation of objects located in the Canary Islands that have been obtained from other sources rather than the package mapSpain.

Value

A sf object of the same class and same CRS than x but displaced accordingly.

See Also

Other helper: esp_check_access()

Other Canary Islands: esp_get_can_box()

Examples

library(sf)
teide <- data.frame(
  name = "Teide Peak",
  lon = -16.6437593,
  lat = 28.2722883
)

teide_sf <- st_as_sf(teide, coords = c("lon", "lat"), crs = 4326)

# If we use any mapSpain produced object with moveCAN = TRUE...

esp <- esp_get_country(moveCAN = c(13, 0))

library(ggplot2)


ggplot(esp) +
  geom_sf() +
  geom_sf(data = teide_sf, color = "red") +
  labs(
    title = "Canary Islands displaced",
    subtitle = "But not the external Teide object"
  )



# But we can

teide_sf_disp <- esp_move_can(teide_sf, moveCAN = c(13, 0))

ggplot(esp) +
  geom_sf() +
  geom_sf(data = teide_sf_disp, color = "red") +
  labs(
    title = "Canary Islands displaced",
    subtitle = "And also the external Teide object"
  )

dieghernan/mapSpain documentation built on Dec. 18, 2024, 12:26 p.m.