delineate_corridor: Delineate a river corridor on a spatial network.

In rcrisp: Automate the Delineation of Urban River Spaces

Delineate a river corridor on a spatial network.

Description

The corridor edges on the two river banks are drawn on the provided spatial network starting from an initial guess of the corridor (based e.g. on the river valley).

Usage

delineate_corridor(
  network,
  river,
  corridor_init = 1000,
  max_width = 3000,
  max_iterations = 10,
  capping_method = "shortest-path"
)

Arguments

network	The spatial network to be used for the delineation
river	A (MULTI)LINESTRING simple feature geometry representing the river centerline
corridor_init	How to estimate the initial guess of the river corridor. It can take the following values: numeric or integer: use a buffer region of the given size (in meters) around the river centerline An sf::sf or sf::sfc object: use the given input geometry
max_width	(Approximate) maximum width of the corridor. The spatial network is trimmed by a buffer region of this size around the river
max_iterations	Maximum number of iterations employed to refine the corridor edges (see corridor_edge()).
capping_method	The method employed to connect the corridor edge end points (i.e. to "cap" the corridor). See cap_corridor() for the available methods

Value

A simple feature geometry representing the river corridor

Examples

bucharest_osm <- get_osm_example_data()
network <- rbind(bucharest_osm$streets, bucharest_osm$railways) |>
  as_network()
delineate_corridor(network, bucharest_osm$river_centerline)

rcrisp documentation built on Aug. 8, 2025, 6:42 p.m.