googlemap.html

<!DOCTYPE html>
<html>
  <head>
    <title>Simple Map</title>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
    <meta charset="utf-8">
    <style>
      html, body, #map-canvas {
        height: 400px;
        width: 400px;
        margin: 0px;
        padding: 0px
      }
      
      .btn { width:  310px; height: 30px; margin: 30px;}
    </style>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
    <script src="https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true"></script>
    <script>


// This example creates circles on the map, representing
// populations in North America.

// First, create an object containing LatLng and population for each city.
var citymap = {};
citymap['chicago'] = {
  center: new google.maps.LatLng(41.878113, -87.629798),
  population: 2714856
};
citymap['newyork'] = {
  center: new google.maps.LatLng(40.714352, -74.005973),
  population: 8405837
};
citymap['losangeles'] = {
  center: new google.maps.LatLng(34.052234, -118.243684),
  population: 3857799
};
citymap['vancouver'] = {
  center: new google.maps.LatLng(49.25, -123.1),
  population: 603502
};

var cityCircle;

		function initialize() {
		  // Create the map.
		  var mapOptions = {
			zoom: 4,
			center: new google.maps.LatLng(37.09024, -95.712891),
			mapTypeId: google.maps.MapTypeId.TERRAIN
		  };

		  var map = new google.maps.Map(document.getElementById('map-canvas'),
			  mapOptions);

		  // Construct the circle for each value in citymap.
		  // Note: We scale the area of the circle based on the population.
		  for (var city in citymap) {
			var populationOptions = {
			  strokeColor: '#FF0000',
			  strokeOpacity: 0.8,
			  strokeWeight: 2,
			  fillColor: '#FF0000',
			  fillOpacity: 0.35,
			  map: map,
			  center: citymap[city].center,
			  radius: Math.sqrt(citymap[city].population) * 100
			};
			// Add the circle for this city to the map.
			cityCircle = new google.maps.Circle(populationOptions);
		  }
		}

		google.maps.event.addDomListener(window, 'load', initialize);


    </script>
    
  <script src="js/html2canvas.js"></script>
  </head>
  <body>
    <div id="map-canvas"></div>
    
    
    <button class="btn">Test on this page</button>
    
    
  </body>
  
  
<script>
$( document ).ready(function() {
$('.btn').click(function() {


html2canvas(document.body, {
  proxy: 'server.js',
  useCORS: true,
  onrendered: function(canvas) {
    document.body.appendChild(canvas);
  }
});

});
});
</script>
  
</html>