Function reference • stplanr

Work with OD data

od2line(): Convert origin-destination data to spatial lines

od2odf(): Extract coordinates from OD data

od_aggregate_from(): Summary statistics of trips originating from zones in OD data

od_aggregate_to(): Summary statistics of trips arriving at destination zones in OD data

od_coords(): Create matrices representing origin-destination coordinates

od_coords2line(): Convert origin-destination coordinates into desire lines

od_id_szudzik() od_id_max_min() od_id_character(): Combine two ID values to create a single ID number

od_oneway(): Aggregate od pairs they become non-directional

od_to_odmatrix(): Convert origin-destination data from long to wide format

odmatrix_to_od(): Convert origin-destination data from wide to long format

points2flow(): Convert a series of points into geographical flows

points2odf(): Convert a series of points into a dataframe of origins and destinations

Work with (desire) lines

angle_diff(): Calculate the angular difference between lines and a predefined bearing

geo_toptail(): Clip the first and last n metres of SpatialLines

is_linepoint(): Identify lines that are points

line2df(): Convert geographic line objects to a data.frame with from and to coords

line2points() line2pointsn() line2vertices(): Convert a spatial (linestring) object to points

line_bearing(): Find the bearing of straight lines

line_breakup(): Break up line objects into shorter segments

line_midpoint(): Find the mid-point of lines

line_segment(): Divide sf LINESTRING objects into regular segments

line_via(): Add geometry columns representing a route via intermediary points

mats2line(): Convert 2 matrices to lines

n_vertices(): Retrieve the number of vertices in sf objects

onewaygeo(): Aggregate flows so they become non-directional (by geometry - the slow way)

points2line(): Convert a series of points, or a matrix of coordinates, into a line

toptail_buff(): Clip the beginning and ends of sf LINESTRING objects

Work with and analyse routes

route_average_gradient(): Return average gradient across a route

route_rolling_average(): Return smoothed averages of vector

route_rolling_diff(): Return smoothed differences between vector values

route_rolling_gradient(): Calculate rolling average gradient from elevation data at segment level

route_sequential_dist(): Calculate the sequential distances between sequential coordinate pairs

route_slope_matrix(): Calculate the gradient of line segments from a matrix of coordinates

route_slope_vector(): Calculate the gradient of line segments from distance and elevation vectors

Routing

route(): Plan routes on the transport network

route_dodgr(): Route on local data using the dodgr package

route_osrm(): Plan routes on the transport network using the OSRM server

Work with nodes

geo_code(): Convert text strings into points on the map

Route network functions

gsection(): Function to split overlapping SpatialLines into segments

islines(): Do the intersections between two geometries create lines?

overline() overline2(): Convert series of overlapping lines into a route network

rnet_breakup_vertices(): Break up an sf object with LINESTRING geometry.

rnet_group(): Assign segments in a route network to groups

Geographic functions

bbox_scale(): Scale a bounding box

geo_bb(): Flexible function to generate bounding boxes

geo_bb_matrix(): Create matrix representing the spatial bounds of an object

quadrant(): Split a spatial object into quadrants

Get transport data

read_table_builder(): Import and format Australian Bureau of Statistics (ABS) TableBuilder files

Example data