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This function creates a convex hull around a set of points. The result is added as a source to the map, which can then be styled using add_fill_layer(), etc.

Usage

turf_convex_hull(
  map,
  layer_id = NULL,
  data = NULL,
  coordinates = NULL,
  source_id,
  input_id = NULL
)

Arguments

map

A mapboxgl, maplibre, mapboxgl_proxy, or maplibre_proxy object.

layer_id

The ID of a layer or source containing points (mutually exclusive with data and coordinates).

data

An sf object containing points (mutually exclusive with layer_id and coordinates).

coordinates

A list of coordinate pairs list(c(lng,lat), c(lng,lat), ...) for multiple points (mutually exclusive with layer_id and data).

source_id

The ID for the new source containing the convex hull. Required.

input_id

Optional. Character string specifying the Shiny input ID suffix for storing results. If NULL (default), no input is registered. For proxy operations, the result will be available as input[[paste0(map_id, "_turf_", input_id)]].

Value

The map or proxy object for method chaining.