Meratakan mesh 3D

Anda dapat menggunakan elemen gmp-flattener untuk meratakan area tertentu pada peta guna menghapus bangunan, struktur, dan flora 3D. Meskipun perataan mesh mempertahankan geometri dasar medan (bukit dan lembah), perataan ini menghilangkan kekacauan pohon, bangunan, dan objek buatan manusia. Hal ini menciptakan ruang bersih untuk menempatkan model 3D, penanda, atau lapisan data kustom tanpa gangguan visual dari fitur peta yang ada.

Berikut contoh peta dengan area terpilih yang telah diratakan:

<html>
    <head>
        <title>3D Mesh Flatten</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: "AIzaSyA6myHzS10YXdcazAFalmXvDkrYCp5cLc8"
            });
        </script>
    </head>
    <body>
        <gmp-map-3d
            center="40.70304023274898,-73.99453903360259,397.3687221767566"
            heading="-54.63577922139952"
            tilt="65.59195953953744"
            mode="SATELLITE">
            <gmp-flattener
                path="40.707680607935245,-74.00310353377735,500 40.70829665151717,-74.00193595590612,500 40.7073748659931,-74.00122787224885,500 40.706738652153156,-74.00232125268805,500 40.70738164589913,-74.0028721484274,500">
            </gmp-flattener>
        </gmp-map-3d>

        <button class="toggleButton" id="toggleButton" type="button">
            Disable Flattener
        </button>
    </body>
</html>

Lihat contoh kode sumber yang lengkap

TypeScript

async function init(): Promise<void> {
    await google.maps.importLibrary('maps3d');

    const map = document.querySelector('gmp-map-3d')!;
    const flattener = document.querySelector('gmp-flattener')!;
    map.append(flattener);

    const toggleButton = document.getElementById(
        'toggleButton'
    ) as HTMLButtonElement;
    toggleButton.addEventListener('click', () => {
        if (flattener.isConnected) {
            flattener.remove();
            toggleButton.textContent = 'Enable Flattener';
        } else {
            map.append(flattener);
            toggleButton.textContent = 'Disable Flattener';
        }
    });
}

void init();

JavaScript

async function init() {
    await google.maps.importLibrary('maps3d');

    const map = document.querySelector('gmp-map-3d');
    const flattener = document.querySelector('gmp-flattener');
    map.append(flattener);

    const toggleButton = document.getElementById('toggleButton');
    toggleButton.addEventListener('click', () => {
        if (flattener.isConnected) {
            flattener.remove();
            toggleButton.textContent = 'Enable Flattener';
        } else {
            map.append(flattener);
            toggleButton.textContent = 'Disable Flattener';
        }
    });
}

void init();

CSS

html,
gmp-map-3d {
    height: 100%;
}

html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
}

.toggleButton {
    background: rgb(235, 235, 235);
    color: black;
    border: none;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    border-radius: 4px;
    cursor: pointer;
    position: fixed;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
}

.toggleButton:hover {
    background-color: #007bff;
    color: white;
}

HTML

<html>
    <head>
        <title>3D Mesh Flatten</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: "AIzaSyA6myHzS10YXdcazAFalmXvDkrYCp5cLc8"
            });
        </script>
    </head>
    <body>
        <gmp-map-3d
            center="40.70304023274898,-73.99453903360259,397.3687221767566"
            heading="-54.63577922139952"
            tilt="65.59195953953744"
            mode="SATELLITE">
            <gmp-flattener
                path="40.707680607935245,-74.00310353377735,500 40.70829665151717,-74.00193595590612,500 40.7073748659931,-74.00122787224885,500 40.706738652153156,-74.00232125268805,500 40.70738164589913,-74.0028721484274,500">
            </gmp-flattener>
        </gmp-map-3d>

        <button class="toggleButton" id="toggleButton" type="button">
            Disable Flattener
        </button>
    </body>
</html>

Mencoba Contoh

Mendatarkan area

Contoh berikut menunjukkan cara meneruskan jalur koordinat lat/lng ke perata:

<gmp-map-3d
    center="40.70304023274898,-73.99453903360259,397.3687221767566"
    heading="-54.63577922139952"
    tilt="65.59195953953744"
    mode="SATELLITE">
    <gmp-flattener
        path="40.707680607935245,-74.00310353377735,500 40.70829665151717,-74.00193595590612,500 40.7073748659931,-74.00122787224885,500 40.706738652153156,-74.00232125268805,500 40.70738164589913,-74.0028721484274,500">
    </gmp-flattener>
</gmp-map-3d>

Membuka area tertentu

Untuk meratakan area, hapus perata dari dokumen dengan memanggil flattener.remove().

Manfaat utama

  • Penyesuaian: Hapus geometri peta default untuk mengosongkan ruang bagi model 3D Anda sendiri.
  • Kejelasan: Berikan tampilan poligon dan polyline yang jelas dan tidak terhalang, seperti rute mendetail, langsung ke permukaan peta.
  • Visibilitas kamera: Cegah bangunan atau pohon mengganggu tampilan kamera, sehingga menghalangi titik fokus Anda.