Leaflet.heat

A tiny, simple and fast Leaflet heatmap plugin. Uses simpleheat under the hood, additionally clustering points into a grid for performance.

Demos

• 10,000 points →
• Adding points dynamically →

Basic Usage

L.heatLayer(latlngs, {radius: 25}).addTo(map);

To include the plugin, just use leaflet-heat.js from the dist folder:

<script src="leaflet-heat.js"></script>

Reference

L.heatLayer(latlngs, options);

Constructs a heatmap layer given an array of LatLng points and an object with the following options:

• maxZoom - zoom level where the points reach maximum intensity (as intensity scales with zoom), equals maxZoom of the map by default
• radius - radius of each "point" of the heatmap, 25 by default
• blur - amount of blur, 15 by default