Get the river centreline from OpenStreetMap

Usage

get_osm_river_centerline(
  bb,
  river_name,
  crs = NULL,
  buffer_distance = NULL,
  force_download = FALSE
)

Arguments

bb: Bounding box of class bbox
river_name: The name of the river as character vector of length 1, case-sensitive.
crs: Coordinate reference system as EPSG code
buffer_distance: Optional buffer distance in metres to expand the bounding box before cropping the river centreline. Useful when downstream processing (e.g. network or DEM analysis) extends beyond the original bb. Defaults to NULL (no expansion).
force_download: Download data even if cached data is available

Value

The river centreline as object of class sf::sfc_LINESTRING or sf::sfc_MULTILINESTRING.

Examples

if (FALSE) { # interactive()
bb <- get_osm_bb("Bucharest")
crs <- get_utm_zone(bb)
get_osm_river_centerline(bb = bb, river_name = "Dâmbovița", crs = crs,
              force_download = FALSE)
}