lixinru
/
YtIoT


			
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							<!DOCTYPE HTML>
<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
		<meta name="viewport" content="width=device-width, initial-scale=1">
		<title>Highcharts Example</title>

		<style type="text/css">

		</style>
	</head>
	<body>
<script src="../../code/highcharts.js"></script>
<script src="../../code/modules/boost.js"></script>
<script src="../../code/modules/exporting.js"></script>

<div id="container" style="height: 400px; max-width: 800px; margin: 0 auto"></div>


		<script type="text/javascript">


function getData(n) {
    var arr = [],
        i,
        x,
        a,
        b,
        c,
        spike;
    for (
        i = 0, x = Date.UTC(new Date().getUTCFullYear(), 0, 1) - n * 36e5;
        i < n;
        i = i + 1, x = x + 36e5
    ) {
        if (i % 100 === 0) {
            a = 2 * Math.random();
        }
        if (i % 1000 === 0) {
            b = 2 * Math.random();
        }
        if (i % 10000 === 0) {
            c = 2 * Math.random();
        }
        if (i % 50000 === 0) {
            spike = 10;
        } else {
            spike = 0;
        }
        arr.push([
            x,
            2 * Math.sin(i / 100) + a + b + c + spike + Math.random()
        ]);
    }
    return arr;
}
var n = 500000,
    data = getData(n);


console.time('line');
Highcharts.chart('container', {

    chart: {
        zoomType: 'x'
    },

    title: {
        text: 'Highcharts drawing ' + n + ' points'
    },

    subtitle: {
        text: 'Using the Boost module'
    },

    tooltip: {
        valueDecimals: 2
    },

    xAxis: {
        type: 'datetime'
    },

    series: [{
        data: data,
        lineWidth: 0.5,
        name: 'Hourly data points'
    }]

});
console.timeEnd('line');

		</script>
	</body>
</html>