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Library @swim/leaflet


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@swim/leaflet provides @swim/map overlays for Leaflet maps. Check out the traffic map and transit map demos to see massively real-time maps in action. @swim/leaflet is part of the @swim/maps framework.



For an npm-managed project, npm install @swim/leaflet to make it a dependency. TypeScript sources will be installed into node_modules/@swim/leaflet/main. Transpiled JavaScript and TypeScript definition files install into node_modules/@swim/leaflet/lib/main. And a pre-built UMD script can be found in node_modules/@swim/leaflet/dist/main/swim-leaflet.js.


Browser applications can load swim-maps.js—which bundles the @swim/leaflet library—along with its swim-core.js and swim-ui.js dependencies, directly from the SwimOS CDN.

<!-- Development -->
<script src="https://cdn.swimos.org/js/latest/swim-core.js"></script>
<script src="https://cdn.swimos.org/js/latest/swim-ui.js"></script>
<script src="https://cdn.swimos.org/js/latest/swim-maps.js"></script>

<!-- Production -->
<script src="https://cdn.swimos.org/js/latest/swim-core.min.js"></script>
<script src="https://cdn.swimos.org/js/latest/swim-ui.min.js"></script>
<script src="https://cdn.swimos.org/js/latest/swim-maps.min.js"></script>

Alternatively, the standalone swim-system.js script may be loaded from the SwimOS CDN, which bundles @swim/leaflet together with all other @swim/system libraries.

<!-- Development -->
<script src="https://cdn.swimos.org/js/latest/swim-system.js"></script>

<!-- Production -->
<script src="https://cdn.swimos.org/js/latest/swim-system.min.js"></script>



@swim/leaflet can be imported as an ES6 module from TypeScript and other ES6-compatible environments.

import * as leaflet from "@swim/leaflet";


@swim/leaflet can also be used as a CommonJS module in Node.js applications.

var leaflet = require("@swim/leaflet");


When loaded by a web browser, the swim-leaflet.js script adds all @swim/leaflet library exports to the global swim namespace. The swim-leaflet.js script requires that swim-core.js and swim-ui.js have already been loaded.

The swim-toolkit.js script also adds all @swim/leaflet library exports to the global swim namespace, making it a drop-in replacement for swim-ui.js and swim-leaflet.js when additional @swim/toolkit frameworks are needed.


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