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Visualizing animated paths
This example shows vehicle trip data in New York City. The
Trips Layer
renders animated paths that represent vehicle trips.
TypeScript
// TODO Use imports when Deck.gl works in more bundlers// https://github.com/visgl/deck.gl/issues/6351#issuecomment-1079424167// import { GoogleMapsOverlay } from "@deck.gl/google-maps";// import { TripsLayer } from "deck.gl";constGoogleMapsOverlay=deck.GoogleMapsOverlay;constTripsLayer=deck.TripsLayer;interfaceData{vendor:number;path:[number,number][];timestamps:number[];}constDATA_URL="https://raw.githubusercontent.com/visgl/deck.gl-data/master/examples/trips/trips-v7.json";constLOOP_LENGTH=1800;constVENDOR_COLORS=[[255,0,0],// vendor #0[0,0,255],// vendor #1];functioninitMap():void{constmap=newgoogle.maps.Map(document.getElementById("map")asHTMLElement,{center:{lat:40.72,lng:-74},mapId:"fae05836df2dc8bb",tilt:45,zoom:15,});letcurrentTime=0;constprops={id:"trips",data:DATA_URL,getPath:(d:Data)=>d.path,getTimestamps:(d:Data)=>d.timestamps,getColor:(d:Data)=>VENDOR_COLORS[d.vendor],opacity:1,widthMinPixels:2,trailLength:180,currentTime,shadowEnabled:false,};constoverlay=newGoogleMapsOverlay({});constanimate=()=>{currentTime=(currentTime+1)%LOOP_LENGTH;consttripsLayer=newTripsLayer({...props,currentTime,});overlay.setProps({layers:[tripsLayer],});window.requestAnimationFrame(animate);};window.requestAnimationFrame(animate);overlay.setMap(map);}declareglobal{interfaceWindow{initMap:()=>void;}}window.initMap=initMap;
// TODO Use imports when Deck.gl works in more bundlers// https://github.com/visgl/deck.gl/issues/6351#issuecomment-1079424167// import { GoogleMapsOverlay } from "@deck.gl/google-maps";// import { TripsLayer } from "deck.gl";constGoogleMapsOverlay=deck.GoogleMapsOverlay;constTripsLayer=deck.TripsLayer;constDATA_URL="https://raw.githubusercontent.com/visgl/deck.gl-data/master/examples/trips/trips-v7.json";constLOOP_LENGTH=1800;constVENDOR_COLORS=[[255,0,0],// vendor #0[0,0,255],// vendor #1];functioninitMap(){constmap=newgoogle.maps.Map(document.getElementById("map"),{center:{lat:40.72,lng:-74},mapId:"fae05836df2dc8bb",tilt:45,zoom:15,});letcurrentTime=0;constprops={id:"trips",data:DATA_URL,getPath:(d)=>d.path,getTimestamps:(d)=>d.timestamps,getColor:(d)=>VENDOR_COLORS[d.vendor],opacity:1,widthMinPixels:2,trailLength:180,currentTime,shadowEnabled:false,};constoverlay=newGoogleMapsOverlay({});constanimate=()=>{currentTime=(currentTime+1)%LOOP_LENGTH;consttripsLayer=newTripsLayer({...props,currentTime,});overlay.setProps({layers:[tripsLayer],});window.requestAnimationFrame(animate);};window.requestAnimationFrame(animate);overlay.setMap(map);}window.initMap=initMap;
/* * Always set the map height explicitly to define the size of the div element * that contains the map. */#map{height:100%;}/* * Optional: Makes the sample page fill the window. */html,body{height:100%;margin:0;padding:0;}
<html>
<head>
<title>deck.gl Trips Layer</title>
<script src="https://unpkg.com/deck.gl@8.9.22/dist.min.js"></script>
<script src="https://unpkg.com/@deck.gl/google-maps@8.9.22/dist.min.js"></script>
<link rel="stylesheet" type="text/css" href="./style.css" />
<script type="module" src="./index.js"></script>
</head>
<body>
<div id="map"></div>
<!--
The `defer` attribute causes the script to execute after the full HTML
document has been parsed. For non-blocking uses, avoiding race conditions,
and consistent behavior across browsers, consider loading using Promises. See
https://developers.google.com/maps/documentation/javascript/load-maps-js-api
for more information.
-->
<script
src="https://maps.googleapis.com/maps/api/js?key=AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg&callback=initMap&v=weekly"
defer
></script>
</body>
</html>
Git and Node.js are required to run this sample locally. Follow these instructions to install Node.js and NPM. The following commands clone, install dependencies and start the sample application.