Return the bounding box as 'sf' or 'sfc'

Return the bounding box as 'sf' or 'sfc'

st_extent(x, type = "sf")

Arguments

x	(sf/sfc) Spatial data
type	(character) Return type; either "sf" (Default) or "sfc"

Examples

suppressPackageStartupMessages(library(dplyr))
suppressPackageStartupMessages(library(ggplot2))
data(states_map)

tx_extent <- states_map %>%
  filter(region == "texas") %>%
  st_extent()

class(tx_extent)
#> [1] "sf"         "data.frame"

# Can use in joins
ngp %>%
  st_anti_join(tx_extent) %>%
  ggplot() +
  geom_sf(data = states_map) +
  geom_sf(data = tx_extent, fill = NA) +
  geom_sf(color = "red")
#> although coordinates are longitude/latitude, st_intersects assumes that they are planar

states_map %>%
  st_anti_join(tx_extent) %>%
  ggplot() +
  geom_sf() +
  geom_sf(data = tx_extent, fill = NA)
#> although coordinates are longitude/latitude, st_intersects assumes that they are planar