turf_convex_hull: Create convex hull

In mapgl: Interactive Maps with 'Mapbox GL JS' and 'MapLibre GL JS'

Create convex hull

Description

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.

mapgl documentation built on Aug. 18, 2025, 5:35 p.m.