@spatial/center-mean

centerMean

Takes a Feature or FeatureCollection and returns the mean center. Can be weighted.

Parameters

• geojson GeoJSON GeoJSON to be centered
• options Object Optional parameters (optional, default {})
  • options.properties Object an Object that is used as the Feature's properties (optional, default {})
  • options.weight number? the property name used to weight the center

Examples

var features = turf.featureCollection([
  turf.point([-97.522259, 35.4691], {weight: 10}),
  turf.point([-97.502754, 35.463455], {weight: 3}),
  turf.point([-97.508269, 35.463245], {weight: 5})
]);

var options = {weight: "weight"}
var mean = turf.centerMean(features, options);

//addToMap
var addToMap = [features, mean]
mean.properties['marker-size'] = 'large';
mean.properties['marker-color'] = '#000';

Returns Feature<Point> a Point feature at the mean center point of all input features

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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 @spatial/center-mean

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

$ npm install @turf/turf