Présentation
Ce tutoriel vous explique comment modifier l'icône d'une carte Google Maps avancée Repère pour utiliser une image graphique personnalisée. Il est bénéfique de connaître principes de base de la création de repères lors de l'utilisation de ce tutoriel.
L'exemple de carte suivant montre comment utiliser des repères personnalisés pour indiquer différents types d'emplacements.
La section suivante répertorie tout le code dont vous avez besoin pour créer la carte dans ce tutoriel.
TypeScript
let map: google.maps.Map;
async function initMap() {
// Request needed libraries.
const { Map } = await google.maps.importLibrary("maps") as google.maps.MapsLibrary;
const { AdvancedMarkerElement, PinElement } = await google.maps.importLibrary("marker") as google.maps.MarkerLibrary;
map = new google.maps.Map(document.getElementById("map") as HTMLElement, {
center: new google.maps.LatLng(-33.91722, 151.23064),
zoom: 16,
mapId: "DEMO_MAP_ID",
});
const iconBase =
"https://developers.google.com/maps/documentation/javascript/examples/full/images/";
const icons: Record<string, { icon: string }> = {
parking: {
icon: iconBase + "parking_lot_maps.png",
},
library: {
icon: iconBase + "library_maps.png",
},
info: {
icon: iconBase + "info-i_maps.png",
},
};
const features = [
{
position: new google.maps.LatLng(-33.91721, 151.2263),
type: "info",
},
{
position: new google.maps.LatLng(-33.91539, 151.2282),
type: "info",
},
{
position: new google.maps.LatLng(-33.91747, 151.22912),
type: "info",
},
{
position: new google.maps.LatLng(-33.9191, 151.22907),
type: "info",
},
{
position: new google.maps.LatLng(-33.91725, 151.23011),
type: "info",
},
{
position: new google.maps.LatLng(-33.91872, 151.23089),
type: "info",
},
{
position: new google.maps.LatLng(-33.91784, 151.23094),
type: "info",
},
{
position: new google.maps.LatLng(-33.91682, 151.23149),
type: "info",
},
{
position: new google.maps.LatLng(-33.9179, 151.23463),
type: "info",
},
{
position: new google.maps.LatLng(-33.91666, 151.23468),
type: "info",
},
{
position: new google.maps.LatLng(-33.916988, 151.23364),
type: "info",
},
{
position: new google.maps.LatLng(-33.91662347903106, 151.22879464019775),
type: "parking",
},
{
position: new google.maps.LatLng(-33.916365282092855, 151.22937399734496),
type: "parking",
},
{
position: new google.maps.LatLng(-33.91665018901448, 151.2282474695587),
type: "parking",
},
{
position: new google.maps.LatLng(-33.919543720969806, 151.23112279762267),
type: "parking",
},
{
position: new google.maps.LatLng(-33.91608037421864, 151.23288232673644),
type: "parking",
},
{
position: new google.maps.LatLng(-33.91851096391805, 151.2344058214569),
type: "parking",
},
{
position: new google.maps.LatLng(-33.91818154739766, 151.2346203981781),
type: "parking",
},
{
position: new google.maps.LatLng(-33.91727341958453, 151.23348314155578),
type: "library",
},
];
for (let i = 0; i < features.length; i++) {
const iconImage = document.createElement("img");
iconImage.src = icons[features[i].type].icon;
const marker = new google.maps.marker.AdvancedMarkerElement({
map,
position: features[i].position,
content: iconImage,
})
}
}
initMap();
JavaScript
let map;
async function initMap() {
// Request needed libraries.
const { Map } = await google.maps.importLibrary("maps");
const { AdvancedMarkerElement, PinElement } = await google.maps.importLibrary(
"marker",
);
map = new google.maps.Map(document.getElementById("map"), {
center: new google.maps.LatLng(-33.91722, 151.23064),
zoom: 16,
mapId: "DEMO_MAP_ID",
});
const iconBase =
"https://developers.google.com/maps/documentation/javascript/examples/full/images/";
const icons = {
parking: {
icon: iconBase + "parking_lot_maps.png",
},
library: {
icon: iconBase + "library_maps.png",
},
info: {
icon: iconBase + "info-i_maps.png",
},
};
const features = [
{
position: new google.maps.LatLng(-33.91721, 151.2263),
type: "info",
},
{
position: new google.maps.LatLng(-33.91539, 151.2282),
type: "info",
},
{
position: new google.maps.LatLng(-33.91747, 151.22912),
type: "info",
},
{
position: new google.maps.LatLng(-33.9191, 151.22907),
type: "info",
},
{
position: new google.maps.LatLng(-33.91725, 151.23011),
type: "info",
},
{
position: new google.maps.LatLng(-33.91872, 151.23089),
type: "info",
},
{
position: new google.maps.LatLng(-33.91784, 151.23094),
type: "info",
},
{
position: new google.maps.LatLng(-33.91682, 151.23149),
type: "info",
},
{
position: new google.maps.LatLng(-33.9179, 151.23463),
type: "info",
},
{
position: new google.maps.LatLng(-33.91666, 151.23468),
type: "info",
},
{
position: new google.maps.LatLng(-33.916988, 151.23364),
type: "info",
},
{
position: new google.maps.LatLng(-33.91662347903106, 151.22879464019775),
type: "parking",
},
{
position: new google.maps.LatLng(-33.916365282092855, 151.22937399734496),
type: "parking",
},
{
position: new google.maps.LatLng(-33.91665018901448, 151.2282474695587),
type: "parking",
},
{
position: new google.maps.LatLng(-33.919543720969806, 151.23112279762267),
type: "parking",
},
{
position: new google.maps.LatLng(-33.91608037421864, 151.23288232673644),
type: "parking",
},
{
position: new google.maps.LatLng(-33.91851096391805, 151.2344058214569),
type: "parking",
},
{
position: new google.maps.LatLng(-33.91818154739766, 151.2346203981781),
type: "parking",
},
{
position: new google.maps.LatLng(-33.91727341958453, 151.23348314155578),
type: "library",
},
];
for (let i = 0; i < features.length; i++) {
const iconImage = document.createElement("img");
iconImage.src = icons[features[i].type].icon;
const marker = new google.maps.marker.AdvancedMarkerElement({
map,
position: features[i].position,
content: iconImage,
});
}
}
initMap();
CSS
/*
* 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
<html>
<head>
<title>Custom Markers</title>
<link rel="stylesheet" type="text/css" href="./style.css" />
<script type="module" src="./index.js"></script>
</head>
<body>
<div id="map"></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: "AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg", v: "weekly"});</script>
</body>
</html>
Essayer avec un exemple
Personnaliser un repère sur la carte
Vous pouvez modifier l'icône du repère rouge par défaut (
)
à une image personnalisée de votre choix. L'exemple suivant montre comment remplacer le
par défaut avec un fichier PNG personnalisé.
// A marker with a with a URL pointing to a PNG.
const beachFlagImg = document.createElement("img");
beachFlagImg.src =
"https://developers.google.com/maps/documentation/javascript/examples/full/images/beachflag.png";
const beachFlagMarkerView = new AdvancedMarkerElement({
map,
position: { lat: 37.434, lng: -122.082 },
content: beachFlagImg,
title: "A marker using a custom PNG Image",
});
Découvrez d'autres façons de créer des repères avec des graphiques.
Personnaliser les repères en fonction des éléments cartographiques
Chaque point d'intérêt dans la liste des éléments géographiques du campus possède un attribut type. Regardez de quelle manière le code ci-dessous spécifie les types parking, library et info. Vous pouvez personnaliser l'icône du repère en fonction du type que vous avez défini pour l'élément cartographique.
const iconBase =
"https://developers.google.com/maps/documentation/javascript/examples/full/images/";
const icons: Record<string, { icon: string }> = {
parking: {
icon: iconBase + "parking_lot_maps.png",
},
library: {
icon: iconBase + "library_maps.png",
},
info: {
icon: iconBase + "info-i_maps.png",
},
};
function addMarker(feature) {
const iconImage = document.createElement("img");
iconImage.src = icons[feature.type].icon;
const marker = new google.maps.marker.AdvancedMarkerElement({
map,
position: feature.position,
content: iconImage,
})
}
addMarker(features[0]);