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Hexgrid-based vector heatmaps for your Mapbox GL JS Maps

Usage

See the examples directory for an example of usage. You will need to provide your own Mabox access token to view the map.

Here's how it works:

  • Create an instance of HexgridHeatmap. It will automatically add the necessary layer and events to the specified map:
var heatmap = new HexgridHeatmap(map, "hexgrid-heatmap", "waterway-label");
  • You can control the intensity and spread of the points:
heatmap.setIntensity(15);
heatmap.setSpread(0.3);
  • Feed in a GeoJSON FeatureCollection full of points to map
heatmap.setData(sightseeingPOIs);
  • Manually call update() after changing settings. The heatmap will automatically call update() when moving and zooming the map.
heatmap.update();
  • You can set your own color palette using stops conforming to the Mapbox GL style spec:
heatmap.setColorStops([
    [0, "rgba(0,185,243,0)"],
    [50, "rgba(0,185,243,0.5)"],
    [130, "rgba(255,223,0,0.6)"],
    [200, "rgba(255,105,0,0.6)"]
]);