एचटीएमएल और सीएसएस की मदद से मार्कर बनाना

बेहतर मार्कर की मदद से, कस्टम एचटीएमएल और सीएसएस का इस्तेमाल करके, बेहतर विज़ुअल इफ़ेक्ट वाले मार्कर बनाए जा सकते हैं. इनसे इंटरैक्टिविटी और ऐनिमेशन की जानकारी मिल सकती है. सभी AdvancedMarkerElement इंस्टेंस, DOM में एचटीएमएल एलिमेंट के रूप में जोड़ दिए जाते हैं. इन्हें element प्रॉपर्टी से ऐक्सेस किया जा सकता है और किसी दूसरे DOM एलिमेंट की तरह ही इसमें बदलाव किया जा सकता है. AdvancedMarkerElement एक DOM एलिमेंट है. इसलिए, आपके पास डिफ़ॉल्ट मार्कर पर सीधे सीएसएस स्टाइल लागू करने का विकल्प होता है. साथ ही, एचटीएमएल और सीएसएस का इस्तेमाल करके, नए सिरे से कस्टम मार्कर बनाए जा सकते हैं.

सिंपल एचटीएमएल मार्कर

मैप के इस उदाहरण में, एक आसान कस्टम एचटीएमएल मार्कर बनाने का तरीका बताया गया है:

सोर्स देखें

नीचे दिए गए उदाहरण में, नया DIV एलिमेंट बनाना और DIV को CSS क्लास और टेक्स्ट कॉन्टेंट असाइन करना और फिर DIV को AdvancedMarkerElement.content की वैल्यू के रूप में पास करते हुए दिखाया गया है:

TypeScript

async function initMap() {
  // Request needed libraries.
  const { Map } = await google.maps.importLibrary("maps") as google.maps.MapsLibrary;
  const { AdvancedMarkerElement } = await google.maps.importLibrary("marker") as google.maps.MarkerLibrary;

  const map = new Map(document.getElementById('map') as HTMLElement, {
    center: { lat: 37.42, lng: -122.1 },
    zoom: 14,
    mapId: '4504f8b37365c3d0',
  });

  const priceTag = document.createElement('div');
  priceTag.className = 'price-tag';
  priceTag.textContent = '$2.5M';

  const marker = new AdvancedMarkerElement({
    map,
    position: { lat: 37.42, lng: -122.1 },
    content: priceTag,
  });
}
initMap();

JavaScript

async function initMap() {
  // Request needed libraries.
  const { Map } = await google.maps.importLibrary("maps");
  const { AdvancedMarkerElement } = await google.maps.importLibrary("marker");
  const map = new Map(document.getElementById("map"), {
    center: { lat: 37.42, lng: -122.1 },
    zoom: 14,
    mapId: "4504f8b37365c3d0",
  });
  const priceTag = document.createElement("div");

  priceTag.className = "price-tag";
  priceTag.textContent = "$2.5M";

  const marker = new AdvancedMarkerElement({
    map,
    position: { lat: 37.42, lng: -122.1 },
    content: priceTag,
  });
}

initMap();

सीएसएस

/* 
 * 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 marker styles */
.price-tag {
  background-color: #4285F4;
  border-radius: 8px;
  color: #FFFFFF;
  font-size: 14px;
  padding: 10px 15px;
  position: relative;
}

.price-tag::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  transform: translate(-50%, 0);
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 8px solid #4285F4;
}

एचटीएमएल

<html>
  <head>
    <title>Advanced Marker Simple HTML</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>

    <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>

सैंपल आज़माएं

इंटरैक्टिव मार्कर

इस उदाहरण में इंटरैक्टिव मार्कर का एक सेट बनाना दिखाया गया है, जो क्लिक करने पर काल्पनिक जानकारी दिखाता है. इस उदाहरण में दी गई ज़्यादातर सुविधाएं, सीएसएस में शामिल हैं.

सोर्स देखें

TypeScript

async function initMap() {
  // Request needed libraries.
  const { Map } = await google.maps.importLibrary("maps") as google.maps.MapsLibrary;
  const { AdvancedMarkerElement } = await google.maps.importLibrary("marker") as google.maps.MarkerLibrary;

  const center = {lat: 37.43238031167444, lng: -122.16795397128632};
  const map = new Map(document.getElementById("map") as HTMLElement, {
    zoom: 11,
    center,
    mapId: "4504f8b37365c3d0",
  });

  for (const property of properties) {
    const AdvancedMarkerElement = new google.maps.marker.AdvancedMarkerElement({
      map,
      content: buildContent(property),
      position: property.position,
      title: property.description,
    });

    AdvancedMarkerElement.addListener("click", () => {
      toggleHighlight(AdvancedMarkerElement, property);
    });
  }
}

function toggleHighlight(markerView, property) {
  if (markerView.content.classList.contains("highlight")) {
  	markerView.content.classList.remove("highlight");
  	markerView.zIndex = null;
  } else {
  	markerView.content.classList.add("highlight");
  	markerView.zIndex = 1;
  }
}

function buildContent(property) {
  const content = document.createElement("div");
  content.classList.add("property");
  content.innerHTML = `
    <div class="icon">
        <i aria-hidden="true" class="fa fa-icon fa-${property.type}" title="${property.type}"></i>
        <span class="fa-sr-only">${property.type}</span>
    </div>
    <div class="details">
        <div class="price">${property.price}</div>
        <div class="address">${property.address}</div>
        <div class="features">
        <div>
            <i aria-hidden="true" class="fa fa-bed fa-lg bed" title="bedroom"></i>
            <span class="fa-sr-only">bedroom</span>
            <span>${property.bed}</span>
        </div>
        <div>
            <i aria-hidden="true" class="fa fa-bath fa-lg bath" title="bathroom"></i>
            <span class="fa-sr-only">bathroom</span>
            <span>${property.bath}</span>
        </div>
        <div>
            <i aria-hidden="true" class="fa fa-ruler fa-lg size" title="size"></i>
            <span class="fa-sr-only">size</span>
            <span>${property.size} ft<sup>2</sup></span>
        </div>
        </div>
    </div>
    `;
  return content;
}

const properties = [{
  address: '215 Emily St, MountainView, CA',
  description: 'Single family house with modern design',
  price: '$ 3,889,000',
  type: 'home',
  bed: 5,
  bath: 4.5,
  size: 300,
  position: {
    lat: 37.50024109655184,
    lng: -122.28528451834352,
  },
}, {
  address: '108 Squirrel Ln &#128063;, Menlo Park, CA',
  description: 'Townhouse with friendly neighbors',
  price: '$ 3,050,000',
  type: 'building',
  bed: 4,
  bath: 3,
  size: 200,
  position: {
    lat: 37.44440882321596,
    lng: -122.2160620727,
  },
},
{
  address: '100 Chris St, Portola Valley, CA',
  description: 'Spacious warehouse great for small business',
  price: '$ 3,125,000',
  type: 'warehouse',
  bed: 4,
  bath: 4,
  size: 800,
  position: {
    lat: 37.39561833718522,
    lng: -122.21855116258479,
  },
}, {
  address: '98 Aleh Ave, Palo Alto, CA',
  description: 'A lovely store on busy road',
  price: '$ 4,225,000',
  type: 'store-alt',
  bed: 2,
  bath: 1,
  size: 210,
  position: {
    lat: 37.423928529779644,
    lng: -122.1087629822001,
  },
}, {
  address: '2117 Su St, MountainView, CA',
  description: 'Single family house near golf club',
  price: '$ 1,700,000',
  type: 'home',
  bed: 4,
  bath: 3,
  size: 200,
  position: {
    lat: 37.40578635332598,
    lng: -122.15043378466069,
  },
}, {
  address: '197 Alicia Dr, Santa Clara, CA',
  description: 'Multifloor large warehouse',
  price: '$ 5,000,000',
  type: 'warehouse',
  bed: 5,
  bath: 4,
  size: 700,
  position: {
    lat: 37.36399747905774,
    lng: -122.10465384268522,
  },
}, {
  address: '700 Jose Ave, Sunnyvale, CA',
  description: '3 storey townhouse with 2 car garage',
  price: '$ 3,850,000',
  type: 'building',
  bed: 4,
  bath: 4,
  size: 600,
  position: {
    lat: 37.38343706184458,
    lng: -122.02340436985183,
  },
}, {
  address: '868 Will Ct, Cupertino, CA',
  description: 'Single family house in great school zone',
  price: '$ 2,500,000',
  type: 'home',
  bed: 3,
  bath: 2,
  size: 100,
  position: {
    lat: 37.34576403052,
    lng: -122.04455090047453,
  },
}, {
  address: '655 Haylee St, Santa Clara, CA',
  description: '2 storey store with large storage room',
  price: '$ 2,500,000',
  type: 'store-alt',
  bed: 3,
  bath: 2,
  size: 450,
  position: {
    lat: 37.362863347890716,
    lng: -121.97802139023555,
  },
}, {
  address: '2019 Natasha Dr, San Jose, CA',
  description: 'Single family house',
  price: '$ 2,325,000',
  type: 'home',
  bed: 4,
  bath: 3.5,
  size: 500,
  position: {
    lat: 37.41391636421949,
    lng: -121.94592071575907,
  },
}];

initMap();

JavaScript

async function initMap() {
  // Request needed libraries.
  const { Map } = await google.maps.importLibrary("maps");
  const { AdvancedMarkerElement } = await google.maps.importLibrary("marker");
  const center = { lat: 37.43238031167444, lng: -122.16795397128632 };
  const map = new Map(document.getElementById("map"), {
    zoom: 11,
    center,
    mapId: "4504f8b37365c3d0",
  });

  for (const property of properties) {
    const AdvancedMarkerElement = new google.maps.marker.AdvancedMarkerElement({
      map,
      content: buildContent(property),
      position: property.position,
      title: property.description,
    });

    AdvancedMarkerElement.addListener("click", () => {
      toggleHighlight(AdvancedMarkerElement, property);
    });
  }
}

function toggleHighlight(markerView, property) {
  if (markerView.content.classList.contains("highlight")) {
    markerView.content.classList.remove("highlight");
    markerView.zIndex = null;
  } else {
    markerView.content.classList.add("highlight");
    markerView.zIndex = 1;
  }
}

function buildContent(property) {
  const content = document.createElement("div");

  content.classList.add("property");
  content.innerHTML = `
    <div class="icon">
        <i aria-hidden="true" class="fa fa-icon fa-${property.type}" title="${property.type}"></i>
        <span class="fa-sr-only">${property.type}</span>
    </div>
    <div class="details">
        <div class="price">${property.price}</div>
        <div class="address">${property.address}</div>
        <div class="features">
        <div>
            <i aria-hidden="true" class="fa fa-bed fa-lg bed" title="bedroom"></i>
            <span class="fa-sr-only">bedroom</span>
            <span>${property.bed}</span>
        </div>
        <div>
            <i aria-hidden="true" class="fa fa-bath fa-lg bath" title="bathroom"></i>
            <span class="fa-sr-only">bathroom</span>
            <span>${property.bath}</span>
        </div>
        <div>
            <i aria-hidden="true" class="fa fa-ruler fa-lg size" title="size"></i>
            <span class="fa-sr-only">size</span>
            <span>${property.size} ft<sup>2</sup></span>
        </div>
        </div>
    </div>
    `;
  return content;
}

const properties = [
  {
    address: "215 Emily St, MountainView, CA",
    description: "Single family house with modern design",
    price: "$ 3,889,000",
    type: "home",
    bed: 5,
    bath: 4.5,
    size: 300,
    position: {
      lat: 37.50024109655184,
      lng: -122.28528451834352,
    },
  },
  {
    address: "108 Squirrel Ln &#128063;, Menlo Park, CA",
    description: "Townhouse with friendly neighbors",
    price: "$ 3,050,000",
    type: "building",
    bed: 4,
    bath: 3,
    size: 200,
    position: {
      lat: 37.44440882321596,
      lng: -122.2160620727,
    },
  },
  {
    address: "100 Chris St, Portola Valley, CA",
    description: "Spacious warehouse great for small business",
    price: "$ 3,125,000",
    type: "warehouse",
    bed: 4,
    bath: 4,
    size: 800,
    position: {
      lat: 37.39561833718522,
      lng: -122.21855116258479,
    },
  },
  {
    address: "98 Aleh Ave, Palo Alto, CA",
    description: "A lovely store on busy road",
    price: "$ 4,225,000",
    type: "store-alt",
    bed: 2,
    bath: 1,
    size: 210,
    position: {
      lat: 37.423928529779644,
      lng: -122.1087629822001,
    },
  },
  {
    address: "2117 Su St, MountainView, CA",
    description: "Single family house near golf club",
    price: "$ 1,700,000",
    type: "home",
    bed: 4,
    bath: 3,
    size: 200,
    position: {
      lat: 37.40578635332598,
      lng: -122.15043378466069,
    },
  },
  {
    address: "197 Alicia Dr, Santa Clara, CA",
    description: "Multifloor large warehouse",
    price: "$ 5,000,000",
    type: "warehouse",
    bed: 5,
    bath: 4,
    size: 700,
    position: {
      lat: 37.36399747905774,
      lng: -122.10465384268522,
    },
  },
  {
    address: "700 Jose Ave, Sunnyvale, CA",
    description: "3 storey townhouse with 2 car garage",
    price: "$ 3,850,000",
    type: "building",
    bed: 4,
    bath: 4,
    size: 600,
    position: {
      lat: 37.38343706184458,
      lng: -122.02340436985183,
    },
  },
  {
    address: "868 Will Ct, Cupertino, CA",
    description: "Single family house in great school zone",
    price: "$ 2,500,000",
    type: "home",
    bed: 3,
    bath: 2,
    size: 100,
    position: {
      lat: 37.34576403052,
      lng: -122.04455090047453,
    },
  },
  {
    address: "655 Haylee St, Santa Clara, CA",
    description: "2 storey store with large storage room",
    price: "$ 2,500,000",
    type: "store-alt",
    bed: 3,
    bath: 2,
    size: 450,
    position: {
      lat: 37.362863347890716,
      lng: -121.97802139023555,
    },
  },
  {
    address: "2019 Natasha Dr, San Jose, CA",
    description: "Single family house",
    price: "$ 2,325,000",
    type: "home",
    bed: 4,
    bath: 3.5,
    size: 500,
    position: {
      lat: 37.41391636421949,
      lng: -121.94592071575907,
    },
  },
];

initMap();

सीएसएस

:root {
  --building-color: #FF9800;
  --house-color: #0288D1;
  --shop-color: #7B1FA2;
  --warehouse-color: #558B2F;
}

/*
 * Optional: Makes the sample page fill the window.
 */
html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

/*
 * Always set the map height explicitly to define the size of the div element
 * that contains the map.
 */
#map {
  height: 100%;
  width: 100%;
}

/*
 * Property styles in unhighlighted state.
 */
.property {
  align-items: center;
  background-color: #FFFFFF;
  border-radius: 50%;
  color: #263238;
  display: flex;
  font-size: 14px;
  gap: 15px;
  height: 30px;
  justify-content: center;
  padding: 4px;
  position: relative;
  position: relative;
  transition: all 0.3s ease-out;
  width: 30px;
}

.property::after {
  border-left: 9px solid transparent;
  border-right: 9px solid transparent;
  border-top: 9px solid #FFFFFF;
  content: "";
  height: 0;
  left: 50%;
  position: absolute;
  top: 95%;
  transform: translate(-50%, 0);
  transition: all 0.3s ease-out;
  width: 0;
  z-index: 1;
}

.property .icon {
  align-items: center;
  display: flex;
  justify-content: center;
  color: #FFFFFF;
}

.property .icon svg {
  height: 20px;
  width: auto;
}

.property .details {
  display: none;
  flex-direction: column;
  flex: 1;
}

.property .address {
  color: #9E9E9E;
  font-size: 10px;
  margin-bottom: 10px;
  margin-top: 5px;
}

.property .features {
  align-items: flex-end;
  display: flex;
  flex-direction: row;
  gap: 10px;
}

.property .features > div {
  align-items: center;
  background: #F5F5F5;
  border-radius: 5px;
  border: 1px solid #ccc;
  display: flex;
  font-size: 10px;
  gap: 5px;
  padding: 5px;
}

/*
 * Property styles in highlighted state.
 */
.property.highlight {
  background-color: #FFFFFF;
  border-radius: 8px;
  box-shadow: 10px 10px 5px rgba(0, 0, 0, 0.2);
  height: 80px;
  padding: 8px 15px;
  width: auto;
}

.property.highlight::after {
  border-top: 9px solid #FFFFFF;
}

.property.highlight .details {
  display: flex;
}

.property.highlight .icon svg {
  width: 50px;
  height: 50px;
}

.property .bed {
  color: #FFA000;
}

.property .bath {
  color: #03A9F4;
}

.property .size {
  color: #388E3C;
}

/*
 * House icon colors.
 */
.property.highlight:has(.fa-house) .icon {
  color: var(--house-color);
}

.property:not(.highlight):has(.fa-house) {
  background-color: var(--house-color);
}

.property:not(.highlight):has(.fa-house)::after {
  border-top: 9px solid var(--house-color);
}

/*
 * Building icon colors.
 */
.property.highlight:has(.fa-building) .icon {
  color: var(--building-color);
}

.property:not(.highlight):has(.fa-building) {
  background-color: var(--building-color);
}

.property:not(.highlight):has(.fa-building)::after {
  border-top: 9px solid var(--building-color);
}

/*
 * Warehouse icon colors.
 */
.property.highlight:has(.fa-warehouse) .icon {
  color: var(--warehouse-color);
}

.property:not(.highlight):has(.fa-warehouse) {
  background-color: var(--warehouse-color);
}

.property:not(.highlight):has(.fa-warehouse)::after {
  border-top: 9px solid var(--warehouse-color);
}

/*
 * Shop icon colors.
 */
.property.highlight:has(.fa-shop) .icon {
  color: var(--shop-color);
}

.property:not(.highlight):has(.fa-shop) {
  background-color: var(--shop-color);
}

.property:not(.highlight):has(.fa-shop)::after {
  border-top: 9px solid var(--shop-color);
}

एचटीएमएल

<html>
  <head>
    <title>Advanced Markers with HTML</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
    <script src="https://use.fontawesome.com/releases/v6.2.0/js/all.js"></script>

    <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>

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ऐनिमेशन वाले मार्कर

यह उदाहरण सीएसएस और बेहतर मार्कर का इस्तेमाल करके, पारंपरिक "बाउंस-ड्रॉप" ऐनिमेशन बनाता है. IntersectionObserver में, यह drop सीएसएस स्टाइल जोड़ता है. IntersectionObserver यह देखता है कि हर मार्कर, व्यूपोर्ट में कब आता है और स्टाइल जोड़ता है. इसके बाद, हर मार्कर में जोड़ा गया animationend इवेंट लिसनर createMarker() स्टाइल को हटा देता है.

सोर्स देखें

TypeScript

/**
   * Returns a random lat lng position within the map bounds.
   * @param {!google.maps.Map} map
   * @return {!google.maps.LatLngLiteral}
   */
 function getRandomPosition(map) {
    const bounds = map.getBounds();
    const minLat = bounds.getSouthWest().lat();
    const minLng = bounds.getSouthWest().lng();
    const maxLat = bounds.getNorthEast().lat();
    const maxLng = bounds.getNorthEast().lng();

    const latRange = maxLat - minLat;

    // Note: longitude can span from a positive longitude in the west to a
    // negative one in the east. e.g. 150lng (150E) <-> -30lng (30W) is a large
    // span that covers the whole USA.
    let lngRange = maxLng - minLng;
    if (maxLng < minLng) {
      lngRange += 360;
    }

    return {
      lat: minLat + Math.random() * latRange,
      lng: minLng + Math.random() * lngRange,
    };
  }

  const total = 100;
  const intersectionObserver = new IntersectionObserver((entries) => {
    for (const entry of entries) {
      if (entry.isIntersecting) {
        entry.target.classList.add('drop');
        intersectionObserver.unobserve(entry.target);
      }
    }
  });

  async function initMap(): Promise<void> {
    // Request needed libraries.
    const { Map } = await google.maps.importLibrary("maps") as google.maps.MapsLibrary;
    const { AdvancedMarkerElement } = await google.maps.importLibrary("marker") as google.maps.MarkerLibrary;

    const position = {lat: 37.4242011827985, lng: -122.09242296450893};

    const map = new Map(document.getElementById("map") as HTMLElement, {
      zoom: 14,
      center: position,
      mapId: '4504f8b37365c3d0',
    });

    // Create 100 markers to animate.
    google.maps.event.addListenerOnce(map, 'idle', () => {
      for (let i = 0; i < 100; i++) {
        createMarker(map, AdvancedMarkerElement);
      }
    });

    // Add a button to reset the example.
    const controlDiv = document.createElement("div");
    const controlUI = document.createElement("button");

    controlUI.classList.add("ui-button");
    controlUI.innerText = "Reset the example";
    controlUI.addEventListener("click", () => {
      // Reset the example by reloading the map iframe.
      refreshMap();
    });
    controlDiv.appendChild(controlUI);
    map.controls[google.maps.ControlPosition.TOP_CENTER].push(controlDiv);
  }

  function createMarker(map, AdvancedMarkerElement) {    
    const advancedMarker = new AdvancedMarkerElement({
      position: getRandomPosition(map),
      map: map,
    });
    const content = advancedMarker.content as HTMLElement;
    content.style.opacity = '0'; 
    content.addEventListener('animationend', (event) => { 
      content.classList.remove('drop');
      content.style.opacity = '1';
    });
    const time = 2 + Math.random(); // 2s delay for easy to see the animation
    content.style.setProperty('--delay-time', time +'s');
    intersectionObserver.observe(content);
  }

  function refreshMap() {
      // Refresh the map.
      const mapContainer = document.getElementById('mapContainer');
      const map = document.getElementById('map');
      map!.remove();
      const mapDiv = document.createElement('div');
      mapDiv.id = 'map';
      mapContainer!.appendChild(mapDiv);
      initMap();
  }

initMap();

JavaScript

/**
 * Returns a random lat lng position within the map bounds.
 * @param {!google.maps.Map} map
 * @return {!google.maps.LatLngLiteral}
 */
function getRandomPosition(map) {
  const bounds = map.getBounds();
  const minLat = bounds.getSouthWest().lat();
  const minLng = bounds.getSouthWest().lng();
  const maxLat = bounds.getNorthEast().lat();
  const maxLng = bounds.getNorthEast().lng();
  const latRange = maxLat - minLat;
  // Note: longitude can span from a positive longitude in the west to a
  // negative one in the east. e.g. 150lng (150E) <-> -30lng (30W) is a large
  // span that covers the whole USA.
  let lngRange = maxLng - minLng;

  if (maxLng < minLng) {
    lngRange += 360;
  }
  return {
    lat: minLat + Math.random() * latRange,
    lng: minLng + Math.random() * lngRange,
  };
}

const total = 100;
const intersectionObserver = new IntersectionObserver((entries) => {
  for (const entry of entries) {
    if (entry.isIntersecting) {
      entry.target.classList.add("drop");
      intersectionObserver.unobserve(entry.target);
    }
  }
});

async function initMap() {
  // Request needed libraries.
  const { Map } = await google.maps.importLibrary("maps");
  const { AdvancedMarkerElement } = await google.maps.importLibrary("marker");
  const position = { lat: 37.4242011827985, lng: -122.09242296450893 };
  const map = new Map(document.getElementById("map"), {
    zoom: 14,
    center: position,
    mapId: "4504f8b37365c3d0",
  });

  // Create 100 markers to animate.
  google.maps.event.addListenerOnce(map, "idle", () => {
    for (let i = 0; i < 100; i++) {
      createMarker(map, AdvancedMarkerElement);
    }
  });

  // Add a button to reset the example.
  const controlDiv = document.createElement("div");
  const controlUI = document.createElement("button");

  controlUI.classList.add("ui-button");
  controlUI.innerText = "Reset the example";
  controlUI.addEventListener("click", () => {
    // Reset the example by reloading the map iframe.
    refreshMap();
  });
  controlDiv.appendChild(controlUI);
  map.controls[google.maps.ControlPosition.TOP_CENTER].push(controlDiv);
}

function createMarker(map, AdvancedMarkerElement) {
  const advancedMarker = new AdvancedMarkerElement({
    position: getRandomPosition(map),
    map: map,
  });
  const content = advancedMarker.content;

  content.style.opacity = "0";
  content.addEventListener("animationend", (event) => {
    content.classList.remove("drop");
    content.style.opacity = "1";
  });

  const time = 2 + Math.random(); // 2s delay for easy to see the animation

  content.style.setProperty("--delay-time", time + "s");
  intersectionObserver.observe(content);
}

function refreshMap() {
  // Refresh the map.
  const mapContainer = document.getElementById("mapContainer");
  const map = document.getElementById("map");

  map.remove();

  const mapDiv = document.createElement("div");

  mapDiv.id = "map";
  mapContainer.appendChild(mapDiv);
  initMap();
}

initMap();

सीएसएस

/* 
 * 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;
}

/* set the default transition time */
:root {
  --delay-time: .5s;
}

#map {
  height: 100%;
}

#mapContainer {
  height: 100%;
}

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

@keyframes drop {
  0% {
    transform: translateY(-200px) scaleY(0.9);
    opacity: 0;
  }
  5% {
    opacity: 0.7;
  }
  50% {
    transform: translateY(0px) scaleY(1);
    opacity: 1;
  }
  65% {
    transform: translateY(-17px) scaleY(0.9);
    opacity: 1;
  }
  75% {
    transform: translateY(-22px) scaleY(0.9);
    opacity: 1;
  }
  100% {
    transform: translateY(0px) scaleY(1);
    opacity: 1;
  }
}
.drop {
  animation: drop 0.3s linear forwards var(--delay-time);
}

.ui-button {
  background-color: #fff;
  border: 0;
  border-radius: 2px;
  box-shadow: 0 1px 4px -1px rgba(0, 0, 0, 0.3);
  margin: 10px;
  padding: 0 0.5em;
  font: 400 18px Roboto, Arial, sans-serif;
  overflow: hidden;
  height: 40px;
  cursor: pointer;
}

.ui-button:hover {
  background: rgb(235, 235, 235);
}

एचटीएमएल

<html>
  <head>
    <title>Advanced Markers CSS Animation</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>

    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script type="module" src="./index.js"></script>
  </head>
  <body>
    <div id="mapContainer">
      <div id="map" style="height: 100%"></div>
    </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>

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