nearest: nearest accessible position

In osrmr: Wrapper for the 'OSRM' API

Description

nearest() calculates the nearest position to the given coordinates which can be accessed by car. The coordinate-standard is WGS84. Attention: The OSRM API v4 is only working locally, but not with the 'OSRM' webserver.

Usage

nearest(lat, lng, api_version = 5, localhost = F, timeout = 0.001)

Arguments

lat,	A numeric (-90 < lat < 90)
lng,	A numeric (-180 < lng < 180)
api_version,	A numeric (either 4 or 5)
localhost,	A logical (TRUE = localhost is used, FALSE = onlinehost is used)
timeout	A numeric indicating the timeout between server requests (in order to prevent queue overflows). Default is 0.001s.

Value

A data.frame with lat and lng

Examples

## Not run: 
osrmr::nearest(47,9, 5, FALSE)

Sys.setenv("OSRM_PATH_API_5"="C:/OSRM_API5")
osrmr::run_server(Sys.getenv("OSRM_PATH_API_5"), "switzerland-latest.osrm")
osrmr::nearest(47,9, 5, TRUE)
osrmr::quit_server()
Sys.unsetenv("OSRM_PATH_API_5")

Sys.setenv("OSRM_PATH_API_4"="C:/OSRM_API4")
osrmr::run_server(Sys.getenv("OSRM_PATH_API_4"), "switzerland-latest.osrm")
osrmr::nearest(47,9, 4, TRUE)
osrmr::quit_server()
Sys.unsetenv("OSRM_PATH_API_4")
## End(Not run)

osrmr documentation built on May 31, 2021, 5:07 p.m.