turf-centroid

turf-centroid

centroid

Takes one or more features and calculates the centroid using the mean of all vertices. This lessens the effect of small islands and artifacts when calculating the centroid of a set of polygons.

Parameters

• features (Feature | FeatureCollection) input features

Examples

var poly = {
  "type": "Feature",
  "properties": {},
  "geometry": {
    "type": "Polygon",
    "coordinates": [[
      [105.818939,21.004714],
      [105.818939,21.061754],
      [105.890007,21.061754],
      [105.890007,21.004714],
      [105.818939,21.004714]
    ]]
  }
};

var centroidPt = turf.centroid(poly);

var result = {
  "type": "FeatureCollection",
  "features": [poly, centroidPt]
};

//=result

Returns Feature<Point> the centroid of the input features

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-centroid

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

$ npm install turf