rs-supercluster

A very fast Napi rs JavaScript extension library for geospatial point clustering of browsers and nodes.

// import as a ES module
import Supercluster from 'supercluster';

// or require in Node / Browserify
const Supercluster = require('supercluster');

const index = new Supercluster({
    radius: 40,
    maxZoom: 16
});
index.load(points);

Methods

load(points)

Loads an array of GeoJSON Feature objects. Each feature's geometry must be a GeoJSON Point. Once loaded, index is immutable.

Options

Option	Default	Description
minZoom	0	Minimum zoom level at which clusters are generated.
maxZoom	16	Maximum zoom level at which clusters are generated.
minPoints	2	Minimum number of points to form a cluster.
radius	40	Cluster radius, in pixels.
extent	512	(Tiles) Tile extent. Radius is calculated relative to this value.
nodeSize	64	Size of the KD-tree leaf node. Affects performance.
log	false	Whether timing info should be logged.
generateId	false	Whether to generate ids for input features in vector tiles.

npm run build
npm example/demo.js