gh_get_spt: Get the shortest path tree for a given start point
In graphhopper: An R Interface to the 'GraphHopper' Directions API

Get the shortest path tree for a given start point

1 2	gh_get_spt(start_point, time_limit = 600, distance_limit = -1, columns = gh_spt_columns(), reverse_flow = FALSE, profile = "car")

`start_point`	The start point as (lat, lon) pair.
`time_limit`	The travel time limit in seconds. Ignored if `distance_limit > 0`.
`distance_limit`	The distance limit in meters.
`columns`	The columns to be returned. See gh_spt_columns and gh_available_spt_columns for available columns.
`reverse_flow`	Use `reverse_flow = TRUE` to change the flow direction.
`profile`	The profile for which the spt should be calculated.

if (FALSE) {
  start_point <- c(52.53961, 13.36487)

  columns <- gh_spt_columns(
    prev_longitude = TRUE,
    prev_latitude = TRUE,
    prev_time = TRUE
  )

  points_sf <- gh_get_spt(start_point, time_limit = 180, columns = columns) %>%
    gh_as_sf()
}