Esri Leaflet plugin for visualizing Feature Layers as heatmaps with L.heat
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README.md

Esri Leaflet Heatmap Feature Layer

Build Status

A plugin for Esri Leaflet to visualize Feature Services as heatmaps built on top of the L.heat Leaflet Plugin.

Demos

A live demo can be found on the Esri Leaflet website.

Example

Here is a quick example to get you started.

Demo
<html>
<head>
  <meta charset=utf-8 />
  <title>Points as a heatmap</title>
  <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />

  <!-- Load libraries from CDN -->
  <link rel="stylesheet" href="https://unpkg.com/leaflet@1.0.0-rc.3/dist/leaflet.css" />
  <script src="https://unpkg.com/leaflet@1.0.0-rc.3"></script>

  <script src="https://unpkg.com/leaflet.heat@0.2.0"></script>

  <!-- Esri Leaflet and Esri Leaflet Heatmap -->
  <script src="https://unpkg.com/esri-leaflet@2.0.2"></script>
  <script src="https://unpkg.com/esri-leaflet-heatmap@2.0.0"></script>

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

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

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

  L.esri.basemapLayer('Gray').addTo(map);
  L.esri.Heat.featureLayer({
    url: 'https://services.arcgis.com/rOo16HdIMeOBI4Mb/ArcGIS/rest/services/Graffiti_Reports/FeatureServer/0',
    radius: 12
  }).addTo(map);
</script>

</body>
</html>

Documentation & Examples

A full API Reference and sample code can be found at the Esri Leaflet website.

Development Roadmap

If you are interested in contributing to Esri Leaflet or seeing what is coming up next, check out the development roadmap.

Development Instructions

  1. Fork and clone this repo
  2. cd into the esri-leaflet-heatmap-feature-layer folder
  3. Install the dependencies with npm install
  4. run npm run build to compile the raw source inside a newly created dist folder.
  5. run npm test from the command line to execute tests
  6. Open debug/sample.html to see local changes in action.
  7. Create a pull request if you'd like to share your work.

Dependencies

Resources

Issues

Find a bug or want to request a new feature? Please let us know by submitting an issue.

Please take a look at previous issues on Esri Leaflet and Esri Leaflet Heatmap Feature Layer that resolve common problems.

You can also post issues on the GIS Stackexchange an/or the Esri Leaflet place on GeoNet.

Contributing

Esri welcomes contributions from anyone and everyone. Please see our guidelines for contributing.

Licensing

Copyright 2016 Esri

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

A copy of the license is available in the repository's LICENSE file.

[](Esri Tags: ArcGIS Web Mapping Leaflet Heatmap) [](Esri Language: JavaScript)