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Basic polyline
This example shows how to create a polyline on a 3D map.
Read thedocumentation.
JavaScript
letmap;asyncfunctioninit(){const{Map3DElement,MapMode,AltitudeMode,Polyline3DElement}=awaitgoogle.maps.importLibrary('maps3d');map=newMap3DElement({center:{lat:37.7927,lng:-122.402,altitude:65.93},range:3362.87,tilt:64.01,heading:25.0,mode:MapMode.SATELLITE,gestureHandling:'COOPERATIVE',});document.body.append(map);constpolyline=newPolyline3DElement({path:[{lat:37.80515638571346,lng:-122.4032569467164},{lat:37.80337073509504,lng:-122.4012878349353},{lat:37.79925208843463,lng:-122.3976697250461},{lat:37.7989102378512,lng:-122.3983408725656},{lat:37.79887832784348,lng:-122.3987094864192},{lat:37.79786443410338,lng:-122.4066878788802},{lat:37.79549248916587,lng:-122.4032992702785},{lat:37.78861484290265,lng:-122.4019489189814},{lat:37.78618687561075,lng:-122.398969592545},{lat:37.7892310309145,lng:-122.3951458683092},{lat:37.7916358762409,lng:-122.3981969390652},],strokeColor:'blue',outerColor:'white',strokeWidth:10,outerWidth:0.4,altitudeMode:AltitudeMode.RELATIVE_TO_GROUND,// Place it on the ground (as it has no altitude it will just be at ground height).drawsOccludedSegments:true,// Show the line through the buildings or anything else that might get in the way.});map.append(polyline);}init();
CSS
/* * Always set the map height explicitly to define the size of the div element * that contains the map. */html,map{height:100%;}body{height:100%;margin:0;padding:0;}
HTML
<html> <head> <title>Map</title> <link rel="stylesheet" type="text/css" href="./style.css" /> <script type="module" src="./index.js"></script> </head> <body> <div></div> <!-- prettier-ignore --> <script>(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))}) ({key: "AIzaSyA6myHzS10YXdcazAFalmXvDkrYCp5cLc8", v: "weekly",});</script> </body></html>Try Sample
Clone Sample
Git and Node.js are required to run this sample locally. Follow theseinstructionsto install Node.js and NPM. The following commands clone, install dependencies and start the sample application.
gitclonehttps://github.com/googlemaps-samples/js-api-samples.gitcdsamples/3d-polylinenpminpmstart
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Last updated 2025-12-11 UTC.