Gmaps Heatmap Layer Plugin

A plugin to create a heatmap layer for Google Maps.
gmaps heatmap layer pluginThis plugin is maintained within the actual heatmap.js repository. If you download heatmap.js you also download the latest version of gmaps-heatmap.js.

download gmaps heatmap layer plugin

It was contributed by the community and is currently maintained on github



Add the gmaps-heatmap.js right under the heatmap.js (either in the header or right before closing the body). A HeatmapOverlay instance takes two parameters: the map instance, and a configuration option object.

Configuration Options

Configuration options are passed to the plugin in a configuration object.



Check out the live example.
// don't forget to add gmaps-heatmap.js
var myLatlng = new google.maps.LatLng(25.6586, -80.3568);
// map options,
var myOptions = {
  zoom: 3,
  center: myLatlng
// standard map
map = new google.maps.Map(document.getElementById("map-canvas"), myOptions);
// heatmap layer
heatmap = new HeatmapOverlay(map, 
    // radius should be small ONLY if scaleRadius is true (or small radius is intended)
    "radius": 2,
    "maxOpacity": 1, 
    // scales the radius based on map zoom
    "scaleRadius": true, 
    // if set to false the heatmap uses the global maximum for colorization
    // if activated: uses the data maximum within the current map boundaries 
    //   (there will always be a red spot with useLocalExtremas true)
    "useLocalExtrema": true,
    // which field name in your data represents the latitude - default "lat"
    latField: 'lat',
    // which field name in your data represents the longitude - default "lng"
    lngField: 'lng',
    // which field name in your data represents the data value - default "value"
    valueField: 'count'

var testData = {
  max: 8,
  data: [{lat: 24.6408, lng:46.7728, count: 3},{lat: 50.75, lng:-1.55, count: 1}, ...]