esri-leaflet-heatmap-feature-layer

v2.0.0-beta.1

Published

2 months ago

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

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Esri Leaflet Heatmap Feature Layer

A plugin for Esri Leaflet that enables visualization of 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.

<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 Leaflet from CDN-->
  <link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-1.0.0-b1/leaflet.css" />
  <script src="http://cdn.leafletjs.com/leaflet-1.0.0-b1/leaflet.js"></script>

  <!-- 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>

  <!-- Esri Leaflet -->
  <script src="http://cdn.jsdelivr.net/leaflet.esri/2.0.0-beta.5/esri-leaflet.js"></script>

  <!-- Load Heatmap Feature Layer from CDN -->
  <script src="//cdn.jsdelivr.net/leaflet.esri.heatmap-feature-layer/2.0.0-beta.1/esri-leaflet-heatmap-feature-layer.js"></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.heatmapFeatureLayer({
    url: 'http://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 plenty of sample code can be found at the Esri Leaflet website.

Development Roadmap

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

Development Instructions

Make Sure you have the Grunt CLI installed.

Fork and clone this repo
cd into the esri-leaflet folder
Install the dependencies with npm install
run grunt from the command line. This will start watching the source files and running linting and testing commands.
Open debug/sample.html which will load up a development environment.
Make your changes and create a pull request

Dependencies

Leaflet version 0.7.3 is required.
Esri Leaflet 1.0.0 is required.
Leaflet.heat version 0.1.3 is required.

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 previous issues on Esri Leaflet Heatmap Feature Layerthat 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

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)