This function calculates the distance between the first features of two layers or coordinates. Note: This function only works with proxy objects as it returns a numeric value to R.
Usage
turf_distance(
proxy,
layer_id = NULL,
layer_id_2 = NULL,
data = NULL,
coordinates = NULL,
coordinates_2 = NULL,
units = "kilometers",
input_id = "turf_distance_result"
)Arguments
- proxy
A mapboxgl_proxy or maplibre_proxy object.
- layer_id
The ID of the first layer or source (mutually exclusive with data and coordinates).
- layer_id_2
The ID of the second layer or source (required if layer_id is used).
- data
An sf object for the first geometry (mutually exclusive with layer_id and coordinates).
- coordinates
A numeric vector of length 2 with lng/lat coordinates for the first point (mutually exclusive with layer_id and data).
- coordinates_2
A numeric vector of length 2 with lng/lat coordinates for the second point (required if coordinates is used).
- units
The units for the distance calculation. One of "meters", "kilometers", "miles", etc.
- input_id
Character string specifying the Shiny input ID suffix for storing the distance result. Default is "turf_distance_result". Result will be available as
input[[paste0(map_id, "_turf_", input_id)]].