build_iso_query — build_iso

build query for isochrone-dist API

Usage

build_iso_query(
  point,
  source,
  value,
  type,
  profile,
  direction,
  constraints,
  distance_unit,
  time_unit
)

point: character; point formated with x_to_iso.
source: character; This parameter specifies which source will be used for the calculation. Currently, "valhalla" and "pgr" sources are available (default "pgr"). See section SOURCE for further information.
value: numeric; A quantity of time or distance.
type: character; Specifies the type of calculation performed: "time" for isochrone or "distance" for isodistance (isochrone by default).
profile: character; Type of cost used for calculation: "pedestrian" for #' pedestrians and "car" for cars. and "car" for cars ("pedestrian" by default).
direction: character; Direction of travel. Either define a "departure" point and obtain the potential arrival points. Or define an "arrival" point and obtain the potential points ("departure" by default).
constraints: Used to express constraints on the characteristics to calculate isochrones/isodistances. See section CONSTRAINTS.
distance_unit: character; Allows you to specify the unit in which distances are expressed in the answer: "meter" or "kilometer" (meter by default).
time_unit: character; Allows you to specify the unit in which times are expressed in the answer: "hour", "minute" or "second" (minutes by default).

httr2_request object