@spatial/center-mean

turf center-mean module

Usage no npm install needed!

<script type="module">
  import spatialCenterMean from 'https://cdn.skypack.dev/@spatial/center-mean';
</script>

README

@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

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