highcharts动态图表

最新推荐文章于 2019-11-11 18:33:34 发布

原创最新推荐文章于 2019-11-11 18:33:34 发布 · 578 阅读

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本文介绍了一个使用Highcharts库实现的实时更新数据的线形图表案例。该图表每隔一秒自动添加新的时间戳及随机数值，展示了如何配置Highcharts来实现实时数据流的可视化。

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<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>

<div id="container" style="min-width: 310px; height: 400px; margin: 0 auto"></div>

$(document).ready(function () {
    Highcharts.setOptions({
        global: {
            useUTC: false
        }
    });

    Highcharts.chart('container', {
        chart: {
            type: 'line',
            animation: Highcharts.svg, // don't animate in old IE
            marginRight: 10,
            events: {
                load: function () {

                    // set up the updating of the chart each second
                    var series = this.series[0];
                    var series2 = this.series[1];
                    setInterval(function () {
                        var x = (new Date()).getTime(), // current time
                            y = Math.random();
                        series.addPoint([x, y], true, true);
                        series2.addPoint([x-1, y-1], true, true);
                    }, 1000);
                }
            }
        },
        title: {
            text: 'Live random data'
        },
        xAxis: {
            type: 'datetime',
            tickPixelInterval: 150
        },
        yAxis: {
            title: {
                text: 'Value'
            },
            plotLines: [{
                value: 0,
                width: 1,
                color: '#808080'
            }]
        },
        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);
            },
            shared: false,
            crosshairs: true,
            plotOptions: {
                /*spline: {
                    marker: {
                        radius: 4,
                        lineColor: '#666666',
                        lineWidth: 1,
                        enabled: false
                    }
                },
                */
            }
        },
        legend: {
            enabled: false
        },
        exporting: {
            enabled: false
        },
        series: [{
            name: 'Random data',
            marker: {
              enabled: false
            },
            data: (function () {
                // generate an array of random data
                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;
            }())
        },
        {
            name: 'Random data2',
            marker: {
              enabled: false
            },
            data: (function () {
                // generate an array of random data
                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;
            }())
        }
        ]
    });
});