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Graph.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Edison Sensor Value Visualization</title>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
var wsUrl = 'ws://edison-fujita.mybluemix.net/ws/brightness';
var socket, sensorData, sensorOptions, sensorChart;
// Google Gauge
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
// Data for light sensor chart
sensorData = google.visualization.arrayToDataTable([
['Label', 'Brightness'],
['', 300]
]);
// Option for a chart
var options = {
title: 'Brightness from light sensor connected to Intel Edison',
curveType: 'function',
legend: { position: 'bottom' }
};
sensorChart = new google.visualization.LineChart(document.getElementById('sensorChart'));
sensorChart.draw(sensorData, sensorOptions);
};
function connect() {
socket = new WebSocket(wsUrl);
socket.onmessage = function(e) {
var SData = JSON.parse(e.data);
console.log(SData);
// Update sensor data
sensorData.addRow(['', Number(SData.d.brightness)]);
sensorChart.draw(sensorData, sensorOptions);
};
};
function disconnect() {
socket.close();
};
</script>
</head>
<body>
<h1>Intel Edison Ligtht Sensor</h1>
<div>
<button onclick="connect()">Connect</button>
<button onclick="disconnect()">Disconnect</button>
</div>
<div>
<div id="sensorChart" style="width: 900px; height: 500px;"></div>
</div>
</body>
</html>