Możesz dodawać do mapy obiekty, aby oznaczać punkty, linie, obszary lub kolekcje obiektów. Interfejs Maps JavaScript API wywołuje te nakładki obiektów. Nakładki są powiązane ze współrzędnymi szerokości i długości geograficznej, więc poruszają się, gdy przeciągasz mapę lub ją przybliżasz.
Typy nakładania
Interfejs Maps JavaScript API obsługuje kilka różnych typów nakładek, które można dodawać programowo:
- Linie na mapie są wyświetlane za pomocą polilinii, które są reprezentowane jako uporządkowana sekwencja punktów połączonych liniami.
- Obszary o dowolnym kształcie na mapie są wyświetlane za pomocą wielokątów. Podobnie jak linie łamane, wielokąty to uporządkowana sekwencja lokalizacji. W przeciwieństwie do polilinii wielokąty definiują region, który otaczają.
Linie łamane
Linie łamane służą do wyświetlania linii na mapie na podstawie uporządkowanej sekwencji lokalizacji.
Dodawanie linii łamanej
<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>
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>
<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>
Usuwanie linii łamanej
const polyline = document.querySelector('gmp-polyline-3d');
polyline.remove();
Zasłonięta linia łamana
Za pomocą atrybutu draws-occluded-segments możesz kontrolować widoczność zasłoniętych segmentów.
<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>
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>
<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>
Wielokąty
Wielokąty służą do wyświetlania obszarów o kształcie na mapie. Podobnie jak linie łamane, wielokąty są uporządkowaną sekwencją lokalizacji. Jednak wielokąty definiują region, który obejmują.
Prosty wielokąt
<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>
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>
<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.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})({
key: "<YOUR_API_KEY>",
v: "alpha",
// Use the 'v' parameter to indicate the version to use (weekly, beta, alpha, etc.).
// Add other bootstrap parameters as needed, using camel case.
});
</script>
Usuwanie wielokąta
const polygon = document.querySelector('gmp-polygon-3d');
polygon.remove();
Wytłaczany wielokąt
<gmp-map-3d mode="hybrid" center="40.7079,-74.0132,100" heading="30" tilt="55" range="5000">
<gmp-polygon-3d altitude-mode="relative-to-ground" fill-color="#ff0000" fill-opacity="0.5" stroke-color="#0000ff" stroke-width="8" extruded><gmp-polygon-3d>
</gmp-map-3d>
<script>
const polygon = document.querySelector('gmp-polygon-3d');
async function init() {
// Import the needed libraries.
await google.maps.importLibrary('maps3d');
polygon.outerCoordinates = [
{lat: 40.7144, lng: -74.0208, altitude: 1000},
{lat: 40.6993, lng: -74.019, altitude: 1000},
{lat: 40.7035, lng: -74.0004, altitude: 1000},
{lat: 40.7144, lng: -74.0208, altitude: 1000}
];
}
init();
</script>
<script>
(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${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>
Wielokąt z otworem wewnętrznym
<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>
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>
<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>