journey2: Plan a journey with CycleStreets.net

In cyclestreets: Cycle Routing and Data for Cycling Advocacy

Plan a journey with CycleStreets.net

Description

R interface to the CycleStreets.net journey planning API, a route planner made by cyclists for cyclists. See cyclestreets.net/api for details.

Usage

journey2(
  fromPlace = NA,
  toPlace = NA,
  id = NULL,
  plan = "fastest",
  pat = NULL,
  base_url = "https://www.cyclestreets.net",
  host_con = 1,
  reporterrors = TRUE,
  segments = FALSE
)

Arguments

fromPlace	sf points, matrix, or vector of lng/lat coordinates
toPlace	sf points, matrix, or vector of lng/lat coordinates
id	a character ID value to be attached to the results
plan	Text strong of either "fastest" (default), "quietest" or "balanced"
pat	The API key used. By default this uses Sys.getenv("CYCLESTREETS").
base_url	The base url from which to construct API requests (with default set to main server)
host_con	number of threads to use passed to curl::new_pool
reporterrors	Boolean value (TRUE/FALSE) indicating if cyclestreets (TRUE by default). should report errors (FALSE by default).
segments	Logical, if true route segments returned otherwise whole routes

Details

Requires the internet and a CycleStreets.net API key. CycleStreets.net does not yet work worldwide.

You need to have an api key for this code to run. By default it uses the CYCLESTREETS environment variable. A quick way to set this is to install the usethis package and then executing the following command:

usethis::edit_r_environ()

That should open up a new file in your text editor where you can add the environment variable as follows (replace 1a... with your key for this to work):

CYCLESTREETS=1a43ed677e5e6fe9

After setting the environment variable, as outlined above, you need to restart your R session before the journey function will work.

See www.cyclestreets.net/help/journey/howitworks/ for details on how these are calculated.

See Also

json2sf_cs

Examples

## Not run: 
from = c(-1.55, 53.80) # geo_code("leeds")
to = c(-1.76, 53.80) # geo_code("bradford uk")
r1 = journey(from, to)
r2 = journey2(from, to, segments = TRUE)
# waldo::compare(r1, r2) # see differences
sum(sf::st_length(r1))
sum(sf::st_length(r2))
# waldo::compare(sum(sf::st_length(r1)), sum(sf::st_length(r2)))
# waldo::compare(names(r1), names(r2))
# waldo::compare(r1[1, ], r2[1, ])
r1[1:2, ]
r2[1:2, ]
r1$grammesCO2saved
r1$calories

## End(Not run)

cyclestreets documentation built on Sept. 11, 2024, 7:49 p.m.