יצירה של מפת שדרת קניות

בחירת פלטפורמה: Android iOS JavaScript

מפת חלוקה מנהלית היא סוג של מפה נושאית שבה אזורים מנהלתיים צבועים או מוצללים בהתאם לערך של נתונים. אפשר להשתמש ב-google.maps.FeatureStyleFunction כדי להגדיר סגנון למפה על סמך מערך נתונים שבו כל אזור מנהלי משויך לטווח של ערכים מספריים. המפה הבאה לדוגמה מציגה מפה של כורוקולט שמתארים נתונים על אוכלוסיית המדינה בארצות הברית.

בדוגמה הזו, הנתונים מורכבים ממערך של צמדי מפתח/ערך, שמתאימים את שם התצוגה של כל מדינה לערך מספרי של אוכלוסייה. maps.FeatureStyleFunction צבעים מותנים כל אזור על סמך במערך.

TypeScript

featureLayer.style = featureStyleFunctionOptions => {
    const placeFeature = featureStyleFunctionOptions.feature as google.maps.PlaceFeature;
    const population = states[placeFeature.placeId];

    let fillColor;
    // Specify colors using any of the following:
    // * Named ('green')
    // * Hexadecimal ('#FF0000')
    // * RGB ('rgb(0, 0, 255)')
    // * HSL ('hsl(60, 100%, 50%)')

    if (population < 2000000) {
        fillColor = 'green'
    } else if (population < 5000000) {
        fillColor = 'red'
    } else if (population < 10000000) {
        fillColor = 'blue'
    } else if (population < 40000000) {
        fillColor = 'yellow'
    }
    return {
        fillColor,
        fillOpacity: 0.5
    }
}
index.ts

JavaScript

featureLayer.style = (featureStyleFunctionOptions) => {
  const placeFeature = featureStyleFunctionOptions.feature;
  const population = states[placeFeature.placeId];
  let fillColor;

  // Specify colors using any of the following:
  // * Named ('green')
  // * Hexadecimal ('#FF0000')
  // * RGB ('rgb(0, 0, 255)')
  // * HSL ('hsl(60, 100%, 50%)')
  if (population < 2000000) {
    fillColor = "green";
  } else if (population < 5000000) {
    fillColor = "red";
  } else if (population < 10000000) {
    fillColor = "blue";
  } else if (population < 40000000) {
    fillColor = "yellow";
  }
  return {
    fillColor,
    fillOpacity: 0.5,
  };
};

index.js

השלמת הקוד לדוגמה

TypeScript

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

    const map = new Map(document.getElementById('map') as HTMLElement, {
        center: { lat: 40.76, lng: -101.64 },
        zoom: 5,
        // In the cloud console, configure this Map ID with a style that enables the
        // "Administrative Area Level 1" feature layer.
        mapId: '7ba16be0c9375fa7',
    });

    const featureLayer = map.getFeatureLayer(google.maps.FeatureType.ADMINISTRATIVE_AREA_LEVEL_1);

    featureLayer.style = featureStyleFunctionOptions => {
        const placeFeature = featureStyleFunctionOptions.feature as google.maps.PlaceFeature;
        const population = states[placeFeature.placeId];

        let fillColor;
        // Specify colors using any of the following:
        // * Named ('green')
        // * Hexadecimal ('#FF0000')
        // * RGB ('rgb(0, 0, 255)')
        // * HSL ('hsl(60, 100%, 50%)')

        if (population < 2000000) {
            fillColor = 'green'
        } else if (population < 5000000) {
            fillColor = 'red'
        } else if (population < 10000000) {
            fillColor = 'blue'
        } else if (population < 40000000) {
            fillColor = 'yellow'
        }
        return {
            fillColor,
            fillOpacity: 0.5
        }
    }
    // Population data by state.
    const states = {
        "ChIJdf5LHzR_hogR6czIUzU0VV4": 5039877, // Alabama
        "ChIJG8CuwJzfAFQRNduKqSde27w": 732673, // Alaska
        "ChIJaxhMy-sIK4cRcc3Bf7EnOUI": 7276316, // Arizona
        "ChIJYSc_dD-e0ocR0NLf_z5pBaQ": 3025891, // Arkansas
        "ChIJPV4oX_65j4ARVW8IJ6IJUYs": 39237836, // California
        "ChIJt1YYm3QUQIcR_6eQSTGDVMc": 5812069, // Colorado
        "ChIJpVER8hFT5okR5XBhBVttmq4": 3605597, // Connecticut
        "ChIJO9YMTXYFx4kReOgEjBItHZQ": 1003384, // Delaware
        "ChIJvypWkWV2wYgR0E7HW9MTLvc": 21781128, // Florida
        "ChIJV4FfHcU28YgR5xBP7BC8hGY": 10799566, // Georgia
        "ChIJBeB5Twbb_3sRKIbMdNKCd0s": 1441553, // Hawaii
        "ChIJ6Znkhaj_WFMRWIf3FQUwa9A": 1900923, // Idaho
        "ChIJGSZubzgtC4gRVlkRZFCCFX8": 12671469, // Illinois
        "ChIJHRv42bxQa4gRcuwyy84vEH4": 6805985, // Indiana
        "ChIJGWD48W9e7ocR2VnHV0pj78Y": 3193079, // Iowa
        "ChIJawF8cXEXo4cRXwk-S6m0wmg": 2934582, // Kansas
        "ChIJyVMZi0xzQogR_N_MxU5vH3c": 4509394, // Kentucky
        "ChIJZYIRslSkIIYRA0flgTL3Vck": 4624047, // Louisiana
        "ChIJ1YpTHd4dsEwR0KggZ2_MedY": 1372247, // Maine
        "ChIJ35Dx6etNtokRsfZVdmU3r_I": 6165129, // Maryland
        "ChIJ_b9z6W1l44kRHA2DVTbQxkU": 6984723, // Massachussetts
        "ChIJEQTKxz2qTE0Rs8liellI3Zc": 10050811, // Michigan
        "ChIJmwt4YJpbWE0RD6L-EJvJogI": 5707390, // Minnesota
        "ChIJGdRK5OQyKIYR2qbc6X8XDWI": 2949965, // Mississippi
        "ChIJfeMiSNXmwIcRcr1mBFnEW7U": 6168187, // Misssouri
        "ChIJ04p7LZwrQVMRGGwqz1jWcfU": 1104271, // Montana
        "ChIJ7fwMtciNk4cRxArzDwyQJ6E": 1963692, // Nebraska
        "ChIJcbTe-KEKmYARs5X8qooDR88": 3143991, // Nevada
        "ChIJ66bAnUtEs0wR64CmJa8CyNc": 1388992, // New Hampshire
        "ChIJn0AAnpX7wIkRjW0_-Ad70iw": 9267130, // New Jersey
        "ChIJqVKY50NQGIcRup41Yxpuv0Y": 2115877, // New Mexico
        "ChIJqaUj8fBLzEwRZ5UY3sHGz90": 19835913, // New York
        "ChIJgRo4_MQfVIgRGa4i6fUwP60": 10551162, // North Carolina
        "ChIJY-nYVxKD11IRyc9egzmahA0": 774948, // North Dakota
        "ChIJwY5NtXrpNogRFtmfnDlkzeU": 11780017, // Ohio
        "ChIJnU-ssRE5rIcRSOoKQDPPHF0": 3986639, // Oklahoma
        "ChIJVWqfm3xuk1QRdrgLettlTH0": 4246155, // Oregon
        "ChIJieUyHiaALYgRPbQiUEchRsI": 12964056, // Pennsylvania
        "ChIJD9cOYhQ15IkR5wbB57wYTh4": 1095610, // Rhode Island
        "ChIJ49ExeWml-IgRnhcF9TKh_7k": 5190705, // South Carolina
        "ChIJpTjphS1DfYcRt6SGMSnW8Ac": 895376, // South Dakota
        "ChIJA8-XniNLYYgRVpGBpcEgPgM": 6975218, // Tennessee
        "ChIJSTKCCzZwQIYRPN4IGI8c6xY": 29527941, // Texas
        "ChIJzfkTj8drTIcRP0bXbKVK370": 3337975, // Utah
        "ChIJ_87aSGzctEwRtGtUNnSJTSY": 645570, // Vermont
        "ChIJzbK8vXDWTIgRlaZGt0lBTsA": 8642274, // Virginia
        "ChIJ-bDD5__lhVQRuvNfbGh4QpQ": 7738692, // Washington
        "ChIJRQnL1KVUSogRQzrN3mjHALs": 1782959, // West Virginia
        "ChIJr-OEkw_0qFIR1kmG-LjV1fI": 5895908, // Wisconsin
        "ChIJaS7hSDTiXocRLzh90nkisCY": 578803, // Wyoming
    };
}

initMap();
index.ts

JavaScript

async function initMap() {
  // Request needed libraries.
  const { Map } = await google.maps.importLibrary("maps");
  const map = new Map(document.getElementById("map"), {
    center: { lat: 40.76, lng: -101.64 },
    zoom: 5,
    // In the cloud console, configure this Map ID with a style that enables the
    // "Administrative Area Level 1" feature layer.
    mapId: "7ba16be0c9375fa7",
  });
  const featureLayer = map.getFeatureLayer(
    google.maps.FeatureType.ADMINISTRATIVE_AREA_LEVEL_1,
  );

  featureLayer.style = (featureStyleFunctionOptions) => {
    const placeFeature = featureStyleFunctionOptions.feature;
    const population = states[placeFeature.placeId];
    let fillColor;

    // Specify colors using any of the following:
    // * Named ('green')
    // * Hexadecimal ('#FF0000')
    // * RGB ('rgb(0, 0, 255)')
    // * HSL ('hsl(60, 100%, 50%)')
    if (population < 2000000) {
      fillColor = "green";
    } else if (population < 5000000) {
      fillColor = "red";
    } else if (population < 10000000) {
      fillColor = "blue";
    } else if (population < 40000000) {
      fillColor = "yellow";
    }
    return {
      fillColor,
      fillOpacity: 0.5,
    };
  };

  // Population data by state.
  const states = {
    "ChIJdf5LHzR_hogR6czIUzU0VV4": 5039877, // Alabama
    "ChIJG8CuwJzfAFQRNduKqSde27w": 732673, // Alaska
    "ChIJaxhMy-sIK4cRcc3Bf7EnOUI": 7276316, // Arizona
    "ChIJYSc_dD-e0ocR0NLf_z5pBaQ": 3025891, // Arkansas
    "ChIJPV4oX_65j4ARVW8IJ6IJUYs": 39237836, // California
    "ChIJt1YYm3QUQIcR_6eQSTGDVMc": 5812069, // Colorado
    "ChIJpVER8hFT5okR5XBhBVttmq4": 3605597, // Connecticut
    "ChIJO9YMTXYFx4kReOgEjBItHZQ": 1003384, // Delaware
    "ChIJvypWkWV2wYgR0E7HW9MTLvc": 21781128, // Florida
    "ChIJV4FfHcU28YgR5xBP7BC8hGY": 10799566, // Georgia
    "ChIJBeB5Twbb_3sRKIbMdNKCd0s": 1441553, // Hawaii
    "ChIJ6Znkhaj_WFMRWIf3FQUwa9A": 1900923, // Idaho
    "ChIJGSZubzgtC4gRVlkRZFCCFX8": 12671469, // Illinois
    "ChIJHRv42bxQa4gRcuwyy84vEH4": 6805985, // Indiana
    "ChIJGWD48W9e7ocR2VnHV0pj78Y": 3193079, // Iowa
    "ChIJawF8cXEXo4cRXwk-S6m0wmg": 2934582, // Kansas
    "ChIJyVMZi0xzQogR_N_MxU5vH3c": 4509394, // Kentucky
    "ChIJZYIRslSkIIYRA0flgTL3Vck": 4624047, // Louisiana
    "ChIJ1YpTHd4dsEwR0KggZ2_MedY": 1372247, // Maine
    "ChIJ35Dx6etNtokRsfZVdmU3r_I": 6165129, // Maryland
    "ChIJ_b9z6W1l44kRHA2DVTbQxkU": 6984723, // Massachussetts
    "ChIJEQTKxz2qTE0Rs8liellI3Zc": 10050811, // Michigan
    "ChIJmwt4YJpbWE0RD6L-EJvJogI": 5707390, // Minnesota
    "ChIJGdRK5OQyKIYR2qbc6X8XDWI": 2949965, // Mississippi
    "ChIJfeMiSNXmwIcRcr1mBFnEW7U": 6168187, // Misssouri
    "ChIJ04p7LZwrQVMRGGwqz1jWcfU": 1104271, // Montana
    "ChIJ7fwMtciNk4cRxArzDwyQJ6E": 1963692, // Nebraska
    "ChIJcbTe-KEKmYARs5X8qooDR88": 3143991, // Nevada
    "ChIJ66bAnUtEs0wR64CmJa8CyNc": 1388992, // New Hampshire
    "ChIJn0AAnpX7wIkRjW0_-Ad70iw": 9267130, // New Jersey
    "ChIJqVKY50NQGIcRup41Yxpuv0Y": 2115877, // New Mexico
    "ChIJqaUj8fBLzEwRZ5UY3sHGz90": 19835913, // New York
    "ChIJgRo4_MQfVIgRGa4i6fUwP60": 10551162, // North Carolina
    "ChIJY-nYVxKD11IRyc9egzmahA0": 774948, // North Dakota
    "ChIJwY5NtXrpNogRFtmfnDlkzeU": 11780017, // Ohio
    "ChIJnU-ssRE5rIcRSOoKQDPPHF0": 3986639, // Oklahoma
    "ChIJVWqfm3xuk1QRdrgLettlTH0": 4246155, // Oregon
    "ChIJieUyHiaALYgRPbQiUEchRsI": 12964056, // Pennsylvania
    "ChIJD9cOYhQ15IkR5wbB57wYTh4": 1095610, // Rhode Island
    "ChIJ49ExeWml-IgRnhcF9TKh_7k": 5190705, // South Carolina
    "ChIJpTjphS1DfYcRt6SGMSnW8Ac": 895376, // South Dakota
    "ChIJA8-XniNLYYgRVpGBpcEgPgM": 6975218, // Tennessee
    "ChIJSTKCCzZwQIYRPN4IGI8c6xY": 29527941, // Texas
    "ChIJzfkTj8drTIcRP0bXbKVK370": 3337975, // Utah
    "ChIJ_87aSGzctEwRtGtUNnSJTSY": 645570, // Vermont
    "ChIJzbK8vXDWTIgRlaZGt0lBTsA": 8642274, // Virginia
    "ChIJ-bDD5__lhVQRuvNfbGh4QpQ": 7738692, // Washington
    "ChIJRQnL1KVUSogRQzrN3mjHALs": 1782959, // West Virginia
    "ChIJr-OEkw_0qFIR1kmG-LjV1fI": 5895908, // Wisconsin
    "ChIJaS7hSDTiXocRLzh90nkisCY": 578803, // Wyoming
  };
}

initMap();
index.js

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;
}

style.css

HTML

<html>
  <head>
    <title>Choropleth Map</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>
index.html

ניסיון של דוגמה