Package Exports

@turf/convex

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Readme

@turf/convex

convex

Takes a Feature or a FeatureCollection and returns a convex hull Polygon.

Internally this uses the convex-hull module that implements a monotone chain hull.

Parameters

feature (Feature | FeatureCollection) input Feature or FeatureCollection

Examples

var points = {
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [10.195312, 43.755225]
      }
    }, {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [10.404052, 43.8424511]
      }
    }, {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [10.579833, 43.659924]
      }
    }, {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [10.360107, 43.516688]
      }
    }, {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [10.14038, 43.588348]
      }
    }, {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": [10.195312, 43.755225]
      }
    }
  ]
};

var hull = turf.convex(points);

//addToMap
var addToMap = [points, hull]

Returns Feature<Polygon> a convex hull

This module is part of the Turfjs project, an open source module collection dedicated to geographic algorithms. It is maintained in the Turfjs/turf repository, where you can create PRs and issues.

Installation

Install this module individually:

$ npm install @turf/convex

Or install the Turf module that includes it as a function:

$ npm install @turf/turf