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HeatMap.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Heatmaps</title>
<style>
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;
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false&libraries=visualization"></script>
<script src="components/core-min.js"></script>
<script src="components/enc-base64-min.js"></script>
<script src="components/md5.js"></script>
<script src="components/enc-utf16-min.js"></script>
<script src="jquery-1.6.4.js"></script>
<script>
// Adding 500 Data Points
var map, pointarray, heatmap;
var currentTime, currentEvent;
var locations = [];
function initialize() {
var mapOptions = {
zoom: 15,
center: new google.maps.LatLng(65.0110837,25.4680536),
mapTypeId: google.maps.MapTypeId.SATELLITE
};
map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
var pointArray = new google.maps.MVCArray(locations);
heatmap = new google.maps.visualization.HeatmapLayer({
data: pointArray
});
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);
/* Function to get heatmap data from GA server.
* @param {String} gang - String of the gang, whose data we want to show on Heatmap.
* @param {int} time - Describing the gap of time where we want to get the data, if time is null then we get data from the whole game session.
* @param {String} event - string describing which event is ran, can be "spray" or "policebust" or so.
*/
function connect(gang, time, event) {
var xmlHttp = null;
currentTime = time;
currentEvent = event;
if (gang == null && time == null) {
if (event == 'spray')
//In this if we get all data from all gangs from the whole game session period.
var url = "http://vm0063.virtues.fi/heatmaps/eventid/spray:blue%7Cspray:green%7Cspray:purple/time/a/";
else if (event == 'policebust')
//Here we get all data from policebusts, the whole session length.
var url = "http://vm0063.virtues.fi/heatmaps/eventid/policeInfoOnBust:Police/time/a/";
} else if (time && !gang) {
if (event == 'spray') {
//Here we get spray events from destined time, from all gangs.
var url = "http://vm0063.virtues.fi/heatmaps/eventid/spray:blue%7Cspray:green%7Cspray:purple/time/" + time + "/";
}
} else if (gang) {
if (event == 'spray' && !time) {
time = 'a';
//Here we get from whole session period, from a defined gang.
var url = "http://vm0063.virtues.fi/heatmaps/eventid/spray:" + gang + "/time/" + time + "/";
} else if (time) {
//Here we get destined gang from destined period.
var url = "http://vm0063.virtues.fi/heatmaps/eventid/spray:" + gang + "/time/" + time + "/";
}
}
xmlHttp = new XMLHttpRequest();
xmlHttp.onreadystatechange = function() {
if (xmlHttp.readyState == 4) {
//console.log(xmlHttp.responseText);
generateHeatMapArr(xmlHttp.responseText, currentEvent);
}
}
xmlHttp.open ("GET", url, false);
xmlHttp.send(null);
}
/** Function to generate the actual heatmap array
* @param {dictionary} dictionary - Dictionary that consists of XYZ Coordinates in a map, from GameAnalytics.
* @param {String} event - Event string to know which event we are running through, if policebust we have to first make Cartesian coordinates to GPS.
*/
function generateHeatMapArr(dictionary, event) {
var jsondic = JSON.parse(dictionary);
var x = jsondic.x;
var z = jsondic.z;
for (var i in x) {
if (event == "policebust") {
//Divide coordinates, because they were multiplied to int, since GameAnalytics does not accept float or double values.
var zc = z[i] / 1000000;
var xc = x[i] / 1000000;
console.log(zc + "--" + xc);
xc = xc/1000;
zc = zc/1000;
var R = 6367;
//lat1 and lon1 are 0,0 in Oulu3D.
var lat1 = 65.012115;
var lon1 = 25.473323;
var lat2 = lat1 + zc*180/(Math.PI*R);
var lon2 = lon1 + xc*180/(Math.PI*R*Math.cos(lat1));
locations.push(new google.maps.LatLng(lat2, lon2));
console.log(lat2 + "--" + lon2);
} else
locations.push(new google.maps.LatLng(z[i] / 1000000, x[i] / 1000000));
}
//Here we assign data to the actual google maps heatmap array.
var pointArray = new google.maps.MVCArray(locations);
if(!heatmap) {
heatmap = new google.maps.visualization.HeatmapLayer({
data: pointArray
});
}
heatmap.setMap(map);
locations.length = 0;
}
/* How to get heatmap data, pretty straghtforward by naming. */
function getFirst() {
document.getElementById('down').style.display = 'block';
connect(null, 1, 'spray');
}
function getSecond() {
document.getElementById('down').style.display = 'block';
connect(null, 2, 'spray');
}
function getThird() {
document.getElementById('down').style.display = 'block';
connect(null, 3, 'spray');
}
function getLast() {
document.getElementById('down').style.display = 'block';
connect(null, 4, 'spray');
}
/* Get all data on heatmap - from spray */
function getAllSpray() {
document.getElementById('down').style.display = 'block';
connect(null, null, 'spray');
}
function getBlue() {
connect('blue', currentTime, currentEvent);
}
function getGreen() {
connect('green', currentTime, currentEvent);
}
function getPurple() {
connect('purple', currentTime, currentEvent);
}
function policeOnBustAll() {
connect(null, null, 'policebust');
}
var uid = (function(){var id=0;return function(){if(arguments[0]===0)id=0;return id++;}})();
</script>
</head>
<body>
<div id="panel">
<div class= 'leftmost'>
<button onclick="policeOnBustAll()">Police on bust All</button>
</div>
<div class="left">
<button onclick="changeRadius()">Change radius</button>
<button onclick="getAllSpray()">Get All -- Spray</button>
<button onclick="getFirst()">Get 1st day -- Spray</button>
<button onclick="getSecond()">Get 2nd day -- Spray</button>
<button onclick="getThird()">Get 3rd day -- Spray</button>
</div>
<div id = "down" style="display: none;">
<center>
<button onclick="getPurple()">Purple team</button>
<button onclick="getGreen()">Green team</button>
<button onclick="getBlue()">Blue team</button>
</center>
</div>
</div>
<div id="map-canvas"></div>
</body>
</html>