Package index • rcrisp

Delineation

Functions for full or specific delineation

delineate(): Delineate a corridor around a river

delineate_valley(): Extract the river valley from the DEM

delineate_corridor(): Delineate a river corridor on a spatial network

delineate_segments(): Split a river corridor into segments

delineate_riverspace(): Delineate the space surrounding a river

Data

Get OSM data

Get OSM data for delineation

get_osmdata(): Retrieve OpenStreetMap data for a given location

get_osm_bb(): Get the bounding box of a city

get_osm_city_boundary(): Get the city boundary from OpenStreetMap

get_osm_river_centerline(): Get the river centreline from OpenStreetMap

get_osm_river_surface(): Get the river surface from OpenStreetMap

get_osm_streets(): Get OpenStreetMap streets

get_osm_railways(): Get OpenStreetMap railways

get_osm_buildings(): Get OpenStreetMap buildings

get_river_aoi(): Get an area of interest (AoI) around a river, cropping to the bounding box of a city

osmdata_as_sf(): Retrieve OpenStreetMap data as sf object

Get DEM data

Get DEM data for delineation

get_dem(): Access digital elevation model (DEM) for a given region

load_dem(): Retrieve DEM data from a list of STAC assets

default_stac_dem: Default STAC collection

get_stac_asset_urls(): Retrieve the URLs of all the assets intersecting a bbox from a STAC API

Example data

Example OSM, DEM and delineation data

get_osm_example_data(): Get example OSM data

get_dem_example_data(): Get example DEM data

bucharest_dambovita: rcrisp example delineation data for Bucharest

Network preparation

Functions to prepare network for delineation

as_network(): Create a network from a collection of line strings

flatten_network(): Flatten a network by adding points at apparent intersections

clean_network(): Clean a spatial network

Helpers

Helpers used throughout delineation and data retrieval functions

as_bbox(): Get the bounding box from the x object

as_crs(): Standardise the coordinate reference system (CRS) of an object

get_utm_zone(): Get the UTM zone of a spatial object

reproject(): Reproject a raster or vector dataset to the specified coordinate reference system (CRS)

Cache

Functions to handle cached data

check_cache(): Check cache

clear_cache(): Remove cache files

cache_directory(): Return the cache directory used by the package