实时刷新的曲线图 | JShare

Highcharts.setOptions({
		global: {
				useUTC: false
		}
});
function activeLastPointToolip(chart) {
		var points = chart.series[0].points;
		chart.tooltip.refresh(points[points.length -1]);
}
var chart = Highcharts.chart('container', {
		chart: {
				type: 'spline',
				marginRight: 10,
				events: {
						load: function () {
								var series = this.series[0],
										chart = this;
								activeLastPointToolip(chart);
								setInterval(function () {
										var x = (new Date()).getTime(), // 当前时间
												y = Math.random();          // 随机值
										series.addPoint([x, y], true, true);
										activeLastPointToolip(chart);
								}, 1000);
						}
				}
		},
		title: {
				text: '动态模拟实时数据'
		},
		xAxis: {
				type: 'datetime',
				tickPixelInterval: 150
		},
		yAxis: {
				title: {
						text: null
				}
		},
		tooltip: {
				formatter: function () {
						return '<b>' + this.series.name + '</b><br/>' +
								Highcharts.dateFormat('%Y-%m-%d %H:%M:%S', this.x) + '<br/>' +
								Highcharts.numberFormat(this.y, 2);
				}
		},
		legend: {
				enabled: false
		},
		series: [{
				name: '随机数据',
				data: (function () {
						// 生成随机值
						var data = [],
								time = (new Date()).getTime(),
								i;
						for (i = -19; i <= 0; i += 1) {
								data.push({
										x: time + i * 1000,
										y: Math.random()
								});
						}
						return data;
				}())
		}]
});

<div id="container" style="min-width:400px;height:400px"></div>

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实时刷新的曲线图 | JShare

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