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Control marker collision behavior
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The following example shows how to change marker collision behavior.
[フレーム]
Read the documentation.
JavaScript
constmarkers=[]; asyncfunctioninit(){ // Request needed libraries. const{Map3DElement,Marker3DElement}= awaitgoogle.maps.importLibrary('maps3d'); constmap=newMap3DElement({ center:{lat:47.6094,lng:-122.339,altitude:0}, range:1000, mode:'HYBRID', }); for(const[lng,lat]ofpositions){ constmarker=newMarker3DElement({ position:{lat,lng}, // Try setting a different collision behavior here. collisionBehavior:'REQUIRED', }); markers.push(marker); map.append(marker); } document.body.append(map); } constpositions=[ [-122.3402,47.6093], [-122.3402,47.6094], [-122.3403,47.6094], [-122.3384,47.6098], [-122.3389,47.6095], [-122.3396,47.6095], [-122.3379,47.6097], [-122.3378,47.6097], [-122.3396,47.6091], [-122.3383,47.6089], [-122.3379,47.6093], [-122.3381,47.6095], [-122.3378,47.6095], ]; voidinit(); constdropdown=document.getElementById('selectElementId'); dropdown.addEventListener('change',drawMap); functiondrawMap(){ for(constmarkerofmarkers){ marker.collisionBehavior=dropdown.value; } }
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; } selector{ padding:2px; float:right; }
HTML
<html>
<head>
<title>Map</title>
<link rel="stylesheet" type="text/css" href="./style.css" />
<script type="module" src="./index.js"></script>
<script>
// prettier-ignore
(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: "GOOGLE_MAPS_API_KEY"
});
</script>
</head>
<body>
<div id="map"></div>
<selector>
<select id="selectElementId">
<option value="">Pick a Collision Behavior</option>
<option value="REQUIRED">Required</option>
<option value="REQUIRED_AND_HIDES_OPTIONAL">
Required and hides optional
</option>
<option value="OPTIONAL_AND_HIDES_LOWER_PRIORITY">
Optional and hides lower priority
</option>
</select>
</selector>
</body>
</html>Clone Sample
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.
gitclonehttps://github.com/googlemaps-samples/js-api-samples.gitcdsamples/3d-marker-collision-behaviornpminpmstart