Sur la carte, vous pouvez ajouter des objets pour désigner des points, des lignes, des zones ou des ensembles d'objets. Dans l'API Maps JavaScript, on appelle ces objets des superpositions. Les superpositions étant liées aux coordonnées de latitude/longitude, elles se déplacent lorsque vous zoomez ou faites glisser la carte.
Types de superpositions
Dans l'API Maps JavaScript, les cartes 3D photoréalistes sont compatibles avec différents types de superpositions que vous pouvez ajouter par programmation :
- Les lignes sur la carte sont affichées à l'aide de polylignes, qui sont représentées par une séquence ordonnée de points reliés par des segments de ligne.
- Les zones de forme arbitraire sur la carte sont affichées à l'aide de polygones. Comme les polylignes, les polygones représentent une séquence ordonnée de lieux. Mais contrairement aux polylignes, les polygones définissent la région qu'ils délimitent.
Polylignes
Les polylignes sont utilisées pour afficher des lignes sur la carte en fonction d'une séquence ordonnée de lieux.
Ajouter une polyligne
<gmp-map-3d mode="hybrid" center="0,-180,15000000">
<gmp-polyline-3d altitude-mode="clamp-to-ground" stroke-color="red" stroke-width="10"></gmp-polyline-3d>
</gmp-map-3d>
<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.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})({
key: "<YOUR_API_KEY>",
v: "alpha",
// Use the 'v' parameter to indicate the version to use (weekly, beta, alpha, etc.).
// Add other bootstrap parameters as needed, using camel case.
});
</script>
<script>
const polyline = document.querySelector('gmp-polyline-3d');
async function init() {
// Import the needed libraries.
await google.maps.importLibrary('maps3d');
polyline.coordinates = [
{ lat: 37.772, lng: -122.214 },
{ lat: 21.291, lng: -157.821 },
{ lat: -18.142, lng: 178.431 },
{ lat: -27.467, lng: 153.027 }
];
}
init();
</script>
Supprimer une polyligne
const polyline = document.querySelector('gmp-polyline-3d');
polyline.remove();
Polyligne masquée
Vous pouvez contrôler la visibilité des segments masqués à l'aide de l'attribut draws-occluded-segments.
<gmp-map-3d mode="hybrid" heading="25" range="2500" tilt="45" center="37.7905,-122.3989,165">
<gmp-polyline-3d altitude-mode="relative-to-ground" stroke-color="rgba(25, 102, 210, 0.75)" stroke-width="10"></gmp-polyline-3d>
</gmp-map-3d>
<script>
(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${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: "<YOUR_API_KEY>",
v: "alpha",
// Use the 'v' parameter to indicate the version to use (weekly, beta, alpha, etc.).
// Add other bootstrap parameters as needed, using camel case.
});
</script>
<script>
const polyline = document.querySelector('gmp-polyline-3d');
async function init() {
// Import the needed libraries.
await google.maps.importLibrary('maps3d');
polyline.coordinates = [
{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}
];
}
init();
</script>
Polygones
Les polygones permettent d'afficher des zones de forme arbitraire sur la carte. Comme les polylignes, les polygones représentent une séquence ordonnée de lieux. Toutefois, les polygones définissent la région qu'ils délimitent.
Polygone simple
<gmp-map-3d mode="hybrid" center="40.6842,-74.0019,1000" heading="340" tilt="70">
<gmp-polygon-3d altitude-mode="clamp-to-ground" fill-color="#ff0000" stroke-color="rgba(25, 102, 210, 0.75)" stroke-width="8" draws-occluded-segments></gmp-polygon-3d>
</gmp-map-3d>
<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.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})({
key: "<YOUR_API_KEY>",
v: "alpha",
// Use the 'v' parameter to indicate the version to use (weekly, beta, alpha, etc.).
// Add other bootstrap parameters as needed, using camel case.
});
</script>
<script>
const polygon = document.querySelector('gmp-polygon-3d');
async function init() {
// Import the needed libraries.
await google.maps.importLibrary('maps3d');
polygon.outerCoordinates = [
{lat: 40.7144, lng: -74.0208},
{lat: 40.6993, lng: -74.019},
{lat: 40.7035, lng: -74.0004},
{lat: 40.7144, lng: -74.0208}
];
}
init();
</script>
Supprimer un polygone
const polygon = document.querySelector('gmp-polygon-3d');
polygon.remove();
Polygone extrudé
<gmp-map-3d mode="hybrid" center="40.7079,-74.0132,100" heading="30" tilt="55" range="5000">
<gmp-polygon-3d altitude-mode="relative-to-ground" fill-color="#ff0000" fill-opacity="0.5" stroke-color="#0000ff" stroke-width="8" extruded><gmp-polygon-3d>
</gmp-map-3d>
<script>
(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${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: "<YOUR_API_KEY>",
v: "alpha",
// Use the 'v' parameter to indicate the version to use (weekly, beta, alpha, etc.).
// Add other bootstrap parameters as needed, using camel case.
});
</script>
<script>
const polygon = document.querySelector('gmp-polygon-3d');
async function init() {
// Import the needed libraries.
await google.maps.importLibrary('maps3d');
polygon.outerCoordinates = [
{lat: 40.7144, lng: -74.0208, altitude: 1000},
{lat: 40.6993, lng: -74.019, altitude: 1000},
{lat: 40.7035, lng: -74.0004, altitude: 1000},
{lat: 40.7144, lng: -74.0208, altitude: 1000}
];
}
init();
</script>
Polygone avec trou intérieur
<gmp-map-3d mode="hybrid" center="40.7093,-74.0122,10" heading="30" tilt="15" range="5000">
<gmp-polygon-3d altitude-mode="relative-to-ground" fill-color="#ff0000" fill-opacity="0.5" stroke-color="#0000ff" stroke-width="8" extruded><gmp-polygon-3d>
</gmp-map-3d>
<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: "<YOUR_API_KEY>",
v: "alpha",
// Use the 'v' parameter to indicate the version to use (weekly, beta, alpha, etc.).
// Add other bootstrap parameters as needed, using camel case.
});
</script>
<script>
const polygon = document.querySelector('gmp-polygon-3d');
async function init() {
// Import the needed libraries.
await google.maps.importLibrary('maps3d');
polygon.outerCoordinates = [
{lat: 40.7144, lng: -74.0208, altitude: 1000},
{lat: 40.6993, lng: -74.019, altitude: 1000},
{lat: 40.7035, lng: -74.0004, altitude: 1000},
{lat: 40.7144, lng: -74.0208, altitude: 1000}
];
polygon.innerCoordinates = [
[
{lat: 40.71, lng: -74.0175, altitude: 1000},
{lat: 40.703, lng: -74.0165, altitude: 1000},
{lat: 40.7035, lng: -74.006, altitude: 1000},
{lat: 40.71, lng: -74.0175, altitude: 1000}
]
];
}
init();
</script>