octagonal/YPovJo.markdown

## index.html

  <body>
       <script src="https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true&libraries=visualization"></script>
    <div id="panel">
      <button onclick="toggleHeatmap()">Toggle Heatmap</button>
      <button onclick="changeGradient()">Change gradient</button>
      <button onclick="changeRadius()">Change radius</button>
      <button onclick="changeOpacity()">Change opacity</button>
    </div>
    <div id="map-canvas"></div>

## script.js
// Adding 500 Data Points
var map, pointarray, heatmap;

var taxiData = [
];

function initialize() {
  $.getJSON( "http://madhvani.me:3000/kot?area=gte.0", function( data ) {
  $.each( data, function( key, val ) {
    //console.log(val.latitude + "," + val.longitude);
    //taxiData.push(new google.maps.LatLng(val.latitude, val.longitude));
    //taxiData.push({location: new google.maps.LatLng(val.latitude, val.longitude), weight: val.price});
    taxiData.push(new google.maps.LatLng(val.latitude, val.longitude));
    //items.push( "<li id='" + key + "'>" + val + "</li>" );
  });
});

  var mapOptions = {
    zoom: 10,
    center: new google.maps.LatLng(50.819582,3.2672855),
    mapTypeId: google.maps.MapTypeId.SATELLITE
  };

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

  var pointArray = new google.maps.MVCArray(taxiData);

  heatmap = new google.maps.visualization.HeatmapLayer({
    data: pointArray,
    dissipating: true
  });

  heatmap.setMap(map);
}

function toggleHeatmap() {
  heatmap.setMap(heatmap.getMap() ? null : map);
}

function changeGradient() {
  var gradient = [
    'rgba(0, 255, 255, 0)',
    'rgba(0, 255, 255, 1)',
    'rgba(0, 191, 255, 1)',
    'rgba(0, 127, 255, 1)',
    'rgba(0, 63, 255, 1)',
    'rgba(0, 0, 255, 1)',
    'rgba(0, 0, 223, 1)',
    'rgba(0, 0, 191, 1)',
    'rgba(0, 0, 159, 1)',
    'rgba(0, 0, 127, 1)',
    'rgba(63, 0, 91, 1)',
    'rgba(127, 0, 63, 1)',
    'rgba(191, 0, 31, 1)',
    'rgba(255, 0, 0, 1)'
  ]
  heatmap.set('gradient', heatmap.get('gradient') ? null : gradient);
}

function changeRadius() {
  heatmap.set('radius', heatmap.get('radius') ? null : 20);
}

function changeOpacity() {
  heatmap.set('opacity', heatmap.get('opacity') ? null : 0.2);
}

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

## style.css
      html, body, #map-canvas {
        height: 100%;
        margin: 0px;
        padding: 0px
      }
      #panel {
        position: absolute;
        top: 5px;
        left: 50%;
        margin-left: -180px;
        z-index: 5;
        background-color: #fff;
        padding: 5px;
        border: 1px solid #999;
      }

## YPovJo.markdown

      
    Raw
  

              YPovJo.markdown
            
          
    YPovJo

A Pen by Anthony Madhvani on CodePen.
License.

	<body>
	<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true&libraries=visualization"></script>
	<div id="panel">
	<button onclick="toggleHeatmap()">Toggle Heatmap</button>
	<button onclick="changeGradient()">Change gradient</button>
	<button onclick="changeRadius()">Change radius</button>
	<button onclick="changeOpacity()">Change opacity</button>
	</div>
	<div id="map-canvas"></div>
	// Adding 500 Data Points
	var map, pointarray, heatmap;

	var taxiData = [
	];

	function initialize() {
	$.getJSON( "http://madhvani.me:3000/kot?area=gte.0", function( data ) {
	$.each( data, function( key, val ) {
	//console.log(val.latitude + "," + val.longitude);
	//taxiData.push(new google.maps.LatLng(val.latitude, val.longitude));
	//taxiData.push({location: new google.maps.LatLng(val.latitude, val.longitude), weight: val.price});
	taxiData.push(new google.maps.LatLng(val.latitude, val.longitude));
	//items.push( "<li id='" + key + "'>" + val + "</li>" );
	});
	});

	var mapOptions = {
	zoom: 10,
	center: new google.maps.LatLng(50.819582,3.2672855),
	mapTypeId: google.maps.MapTypeId.SATELLITE
	};

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

	var pointArray = new google.maps.MVCArray(taxiData);

	heatmap = new google.maps.visualization.HeatmapLayer({
	data: pointArray,
	dissipating: true
	});

	heatmap.setMap(map);
	}

	function toggleHeatmap() {
	heatmap.setMap(heatmap.getMap() ? null : map);
	}

	function changeGradient() {
	var gradient = [
	'rgba(0, 255, 255, 0)',
	'rgba(0, 255, 255, 1)',
	'rgba(0, 191, 255, 1)',
	'rgba(0, 127, 255, 1)',
	'rgba(0, 63, 255, 1)',
	'rgba(0, 0, 255, 1)',
	'rgba(0, 0, 223, 1)',
	'rgba(0, 0, 191, 1)',
	'rgba(0, 0, 159, 1)',
	'rgba(0, 0, 127, 1)',
	'rgba(63, 0, 91, 1)',
	'rgba(127, 0, 63, 1)',
	'rgba(191, 0, 31, 1)',
	'rgba(255, 0, 0, 1)'
	]
	heatmap.set('gradient', heatmap.get('gradient') ? null : gradient);
	}

	function changeRadius() {
	heatmap.set('radius', heatmap.get('radius') ? null : 20);
	}

	function changeOpacity() {
	heatmap.set('opacity', heatmap.get('opacity') ? null : 0.2);
	}

	google.maps.event.addDomListener(window, 'load', initialize);
	html, body, #map-canvas {
	height: 100%;
	margin: 0px;
	padding: 0px
	}
	#panel {
	position: absolute;
	top: 5px;
	left: 50%;
	margin-left: -180px;
	z-index: 5;
	background-color: #fff;
	padding: 5px;
	border: 1px solid #999;
	}