Esri Leaflet

Styling heatmaps

Custom styling of heatmap gradients with the L.heat options. More information about Feature Layers can be found in the L.esri.Layers.FeatureLayer documentation.

<html>
<head>
  <meta charset=utf-8 />
  <title>Styling heatmaps</title>
  <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />

  <!-- Load Leaflet from CDN-->
  <link rel="stylesheet" href="//cdn.jsdelivr.net/leaflet/0.7.3/leaflet.css" />
  <script src="//cdn.jsdelivr.net/leaflet/0.7.3/leaflet.js"></script>

  <!-- Load Esri Leaflet from CDN -->
  <script src="//cdn.jsdelivr.net/leaflet.esri/1.0.3/esri-leaflet.js"></script>

  <style>
    body { margin:0; padding:0; }
    #map { position: absolute; top:0; bottom:0; right:0; left:0; }
  </style>
</head>
<body>

<!-- Include Leaflet.heat via rawgit.com, do not use in production -->
<script src="https://rawgit.com/Leaflet/Leaflet.heat/gh-pages/dist/leaflet-heat.js"></script>

<!-- Load Heatmap Feature Layer from CDN -->
<script src="http://cdn-geoweb.s3.amazonaws.com/esri-leaflet-heatmap-feature-layer/1.0.0-rc.1/esri-leaflet-heatmap-feature-layer.js"></script>

<div id="map"></div>

<script>
  var map = L.map('map').setView([ 40.706, -73.926], 14);

  L.esri.basemapLayer('Gray').addTo(map);

  L.esri.heatmapFeatureLayer({
    url: 'https://services.arcgis.com/rOo16HdIMeOBI4Mb/ArcGIS/rest/services/Graffiti_Reports/FeatureServer/0',
    radius: 14,
    gradient: {
      0.2: '#ffffb2',
      0.4: '#fd8d3c',
      0.6: '#fd8d3c',
      0.8: '#f03b20',
      1: '#bd0026'
    }
  }).addTo(map);
</script>

</body>
</html>

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Esri Leaflet is a project from the Esri PDX R&D Center and the Esri Community