Highcharts 多系列动态柱形图更新

Question

我在一个项目中使用 highcharts，我在创建动态更新的多个系列数据时遇到了问题。我不确定我做错了什么，下面是示例数据和代码。请注意以下代码适用于单系列数据，但我需要对多个系列进行哪些更改？

示例数据

{"BleedEnthalpy":{"0":1.495308553,"1":0.4441197889,"2":0.8609127688,"3":1.0913122458,"4":1.2085670076},"BypassRatio":{ "0":0.0602932228,"1":0.0020143045,"2":0.1111420462,"3":0.0017957639,"4":0.0665590016}}

代码

Highcharts.chart('other', {
        chart: {
            type: 'column',
            backgroundColor: null,
            animation: Highcharts.svg, // don't animate in old IE
            marginRight: 10,
            events: {
                load: function () {
                    var iter=0;
                    // set up the updating of the chart each second
                    var series = this.series[0];


                    myInterval = setInterval(function() {
                        var len = Object.keys(BleedEnthalpy).length;
            if (iter < len) {
              series.addPoint([(new Date()).getTime(), BleedEnthalpy[iter]], true, true);


              iter++;
            } else {
              clearInterval(myInterval);
            }
          }, 1000);
                }
            }
        },
        title: {
            text: null
        },
        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, 4);
            }
        },
        legend: {
            enabled: false
        },
        exporting: {
            enabled: false
        },
  rangeSelector: {
    enabled: false
  },

  navigator: {
    enabled: false
  },
  scrollbar: {
            enabled: false
        },


        series: [{
            name: 'R data',
            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: BleedEnthalpy
                    });

                }
                return data;}()) }]  });

Answer 1

您必须创建另一个系列，然后以与第一个系列相同的方式为其添加点。

如果你有两组数据：

var BleedEnthalpy = {"0":1.495308553,"1":0.4441197889,"2":0.8609127688,"3":1.0913122458,"4":1.2085670076};

var BypassRatio = { "0":0.0602932228,"1":0.0020143045,"2":0.1111420462,"3":0.0017957639,"4":0.0665590016};

创建两个系列：

series: [{
  ...
}, {
  ...
}]

然后在时间间隔回调中为两个系列添加点

load: function() {
    var iter = 0;
    // set up the updating of the chart each second
    var series = this.series[0],
        series2 = this.series[1];


    myInterval = setInterval(function() {
      var len = Object.keys(BleedEnthalpy).length;
      var len2 = Object.keys(BypassRatio).length,
          x = new Date().getTime();

      if (iter < len) {
        series.addPoint([x, BleedEnthalpy[iter]], false, true);
        series2.addPoint([x, BypassRatio[iter]], true, true);


        iter++;
      } else {
        clearInterval(myInterval);
      }
    }, 1000);
  }

第二个 y 轴不是必需的，但如果系列具有不同的比例，它很有用。

示例：https://jsfiddle.net/jv8a1955/

Highcharts 多系列动态柱形图更新

Highcharts Multiple Series Dynamic Column Chart Update

javascript

jquery

visualization

highcharts