Help : Defining specific cities in GoogleCharts API coding

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Sami Abbas

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Aug 24, 2018, 4:19:38 AM8/24/18

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Dear All,

I require your assistance in the following:

Below is a sample code gratefully offered by Google in how to create a dot map charts where the dot markers are referred as 'city'

my question is, if I want to add a city (that i have its coordinates) not recognized/implemented in Google API inside the array , how am I able to do so? (ease of reference I added the arrow on the line that I wish to implement)

<html>
  <head>
    <script type='text/javascript' src='https://www.gstatic.com/charts/loader.js'></script>
    <script type='text/javascript'>
     google.charts.load('current', {
       'packages': ['geochart'],
       // Note: you will need to get a mapsApiKey for your project.
       // See: https://developers.google.com/chart/interactive/docs/basic_load_libs#load-settings
       'mapsApiKey': 'AIzaSyD-9tSrke72PouQMnMX-a7eZSW0jkFMBWY'
     });
     google.charts.setOnLoadCallback(drawMarkersMap);

      function drawMarkersMap() {
      var data = google.visualization.arrayToDataTable([
        ['City',   'Population', 'Area'],
        ['Rome',      2761477,    1285.31],
        ['Milan',     1324110,    181.76],
        ['Naples',    959574,     117.27],
        ['Turin',     907563,     130.17],
        ['Palermo',   655875,     158.9],
        ['Genoa',     607906,     243.60],
        ['Bologna',   380181,     140.7],
        ['Florence',  371282,     102.41],
        ['Fiumicino', 67370,      213.44],
        ['Anzio',     52192,      43.43],
        ['Ciampino',  38262,      11],

 ====>       [ 'Adding NEW CITY with Latitude Longitude",   55555, 100]


      ]);

      var options = {
        region: 'IT',
        displayMode: 'markers',
        colorAxis: {colors: ['green', 'blue']}
      };

      var chart = new google.visualization.GeoChart(document.getElementById('chart_div'));
      chart.draw(data, options);
    };
    </script>
  </head>
  <body>
    <div id="chart_div" style="width: 900px; height: 500px;"></div>
  </body>
</html>

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