x 轴上日期的滑块实现在 Highcharts 中无法正常工作

Slider implementation for the dates on the x-axis not working correctly in Highcharts

我需要在我的折线图中添加一个滑块,以允许用户跳转到 x 轴上的特定日期。我已经在图表中添加了一个滑块,但由于某种原因它无法正常工作,我无法弄清楚问题出在哪里。有人可以帮忙吗?

https://jsfiddle.net/samwhite/t5sabeyv/1/

afterSetExtremes: function(e) {
                        $("#slider-range").slider("values", 0, 1975 + e.min);
                        $("#slider-range").slider("values", 1, 1975 + e.max);
                        $("#year").val(Math.round(e.min + 1975) +
                            " - " + Math.round(e.max + 1975));
                    }

$("#slider-range").slider({
      range: true,
      min: 1975,
      max: 2020,
      values: [1975, 2020],
      slide: function(event, ui) {
        $("#year").val(ui.values[0] + " - " + ui.values[1]);
        chart.xAxis[0].setExtremes(ui.values[0] - 1975, ui.values[1] - 1975)
      }
    });
    $("#year").val($("#slider-range").slider("values", 0) +
      " - " + $("#slider-range").slider("values", 1));

这是我试图实现的相同行为的示例 https://jsfiddle.net/uvat8u05/27/

任何帮助将不胜感激。

您需要使用 Date.UTC 在您的图表中设置新的间隔。因此,您可以更新滑块函数中的代码,即:

slide: function(event, ui) {
         $("#amount").val(ui.values[0] + " - " + ui.values[1]);
        chart.xAxis[0].setExtremes(Date.UTC(ui.values[0] ,0,1),Date.UTC(ui.values[1] ,0,1) )            
 }

然后,您收到错误 chart is not defined 所以我使用 this.axis.chart 访问系列和工具提示。

工作代码 :

$(function() {
  let result = {
    "data": [
      [31536000000.0, 63.4],
      [34214400000.0, 63.6],
      [36633600000.0, 62.0],
      [39312000000.0, 60.8],
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      [44582400000.0, 63.0],
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      [68256000000.0, 48.9],
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      [1614556800000.0, 222.8],
      [1617235200000.0, 239.5]
    ]
  };
  var $report = $('#report');
  var chart = $('#corn_container').highcharts({
    chart: {
      zoomType: 'x'
    },
    colors: ['#00429d'],
    title: {
      text: "Producer Price Index For Corn Products",
      align: 'left',
      style: {
        color: '#2B2B2B',
        fontSize: '20px',
        fontWeight: 'bold',
      }
    },
    subtitle: {
      text: 'Source: U.S. Bureau of Labor Statistics',
      style: {
        color: '#2B2B2B'
      },
      align: 'left'
    },
    credits: {
      enabled: false
    },
    xAxis: {
      type: 'datetime',
      min: Date.UTC(1970, 1, 1),
      max: Date.UTC(2021, 12, 1),
      tickInterval: 12 * 30 * 24 * 3600 * 1000 * 5,
      labels: {
        style: {
          color: '#2B2B2B'
        }
      },
      plotBands: [{
          color: '#C7EA46',
          from: Date.UTC(2020, 2, 1),
          to: Date.UTC(2050, 1, 1)
        },
        {
          color: '#DEE8E9',
          from: Date.UTC(1973, 11, 1),
          to: Date.UTC(1975, 2, 1),
          events: {
            click: function(e) {
              $report.html(e.type)
            },
            mouseover: function(e) {
       
       //use it like this ..to access series and chart..
       this.axis.chart.tooltip.refresh(this.axis.chart.series[1].points[2]);
              $report.html(`Recession period from November 1973 to February 1975`)
            },
            mouseout: function(e) {
              $report.html('')
            }
          },
        },
        {
          color: '#DEE8E9',
          from: Date.UTC(1980, 1, 1),
          to: Date.UTC(1980, 7, 1),
          events: {
            click: function(e) {
              $report.html(e.type)
            },
            mouseover: function(e) {
               this.axis.chart.tooltip.refresh(this.axis.chart.series[1].points[2]);
              $report.html(`Recession period from January 1980 to July 1980`)
            },
            mouseout: function(e) {
              $report.html('')
            }
          },
        },
        {
          color: '#DEE8E9',
          from: Date.UTC(1981, 8, 1),
          to: Date.UTC(1982, 11, 1),
          events: {
            click: function(e) {
              $report.html(e.type)
            },
            mouseover: function(e) {
              this.axis.chart.tooltip.refresh(this.axis.chart.series[1].points[2]);
              $report.html(`Recession period from August 1981 to November 1982`)
            },
            mouseout: function(e) {
              $report.html('')
            }
          },
        }, ,
        {
          color: '#DEE8E9',
          from: Date.UTC(1990, 7, 1),
          to: Date.UTC(1991, 3, 1),
          events: {
            click: function(e) {
              $report.html(e.type)
            },
            mouseover: function(e) {
              this.axis.chart.tooltip.refresh(this.axis.chart.series[1].points[2]);
              $report.html(`Recession period from July 1990 to March 1991`)
            },
            mouseout: function(e) {
              $report.html('')
            }
          },
        },
        {
          color: '#DEE8E9',
          from: Date.UTC(2001, 4, 1),
          to: Date.UTC(2001, 11, 1),
          events: {
            click: function(e) {
              $report.html(e.type)
            },
            mouseover: function(e) {
              this.axis.chart.tooltip.refresh(this.axis.chart.series[1].points[2]);
              $report.html(`Recession period from April 2001 to November 2001`)
            },
            mouseout: function(e) {
              $report.html('')
            }
          },
        },
        {
          color: '#DEE8E9',
          from: Date.UTC(2007, 12, 1),
          to: Date.UTC(2009, 6, 1),
          events: {
            click: function(e) {
              $report.html(e.type)
            },
            mouseover: function(e) {
              this.axis.chart.tooltip.refresh(this.axis.chart.series[1].points[2]);
              $report.html(`Recession period from December 2007 to June 2009`)
            },
            mouseout: function(e) {
              $report.html('')
            }
          },
        }
      ],
      events: {
        afterSetExtremes: function(e) {
   //i don't thnk this needed
        }
      },
      minRange: 1,
      tickColor: '#2B2B2B',
      lineColor: '#2B2B2B',
      lineWidth: 1
    },
    yAxis: [{
      title: {
        text: 'Index 1982=100',
        style: {
          color: '#2B2B2B'
        }
      },
      min: 40,
      max: 320,
      tickInterval: 40,
      labels: {
        style: {
          color: '#2B2B2B'
        }
      },
      showFirstLabel: true,
      gridLineWidth: 0,
      minorGridLineWidth: 0,
      lineColor: '#2B2B2B',
      lineWidth: 1
    }],
    legend: {
      enabled: false,
      align: 'center',
      verticalAlign: 'bottom',
      borderWidth: 0
    },
    tooltip: {
      shared: true,
      crosshairs: true,
      outside: true,
      backgroundColor: '#fff',
      formatter: function() {
        var date = new Date(this.x);
        var formattedDate = moment(date).format('MMM YYYY');
        return '<strong>' + formattedDate + ':</strong> ' + this.y;
      }
    },
    plotOptions: {
      series: {
        cursor: 'pointer',
        marker: {
          lineWidth: 1
        }
      }
    },
    series: [{
        name: '',
        data: result.data
      },
      {
        name: "hiddenSeries",
        visible: false,
        color: '#4572A7',
        data: [0, 0, 150, 0, 0, 0, 0, 0],
        pointStart: Date.UTC(2010, 0, 1),
        pointInterval: 24 * 3600 * 1000
      }
    ]
  }, function(chart) {

    $("#slider-range").slider({
      range: true,
      min: 1975,
      max: 2020,
      values: [1975, 2020],
      slide: function(event, ui) {
        $("#amount").val(ui.values[0] + " - " + ui.values[1]);
        chart.xAxis[0].setExtremes(Date.UTC(ui.values[0], 0, 1), Date.UTC(ui.values[1], 0, 1)) ///use data.utc to set extreme
      }
    });
    $("#amount").val($("#slider-range").slider("values", 0) +
      " - " + $("#slider-range").slider("values", 1));

  });
});
<script src="https://code.jquery.com/jquery-1.11.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.11.2/jquery-ui.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js"></script>
<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/data.js"></script>
<script src="https://code.highcharts.com/modules/series-label.js"></script>
<link rel="stylesheet" type="text/css" href="https://code.jquery.com/ui/1.11.2/themes/ui-lightness/jquery-ui.css">
<div class="charting_div">
  <figure class="highcharts-figure">
    <div id="corn_container"></div>
    <div id="report"></div>
    <div style="margin: 20px 0px 0px 60px">


      <p>
        <label for="amount">Year(s):</label>
        <input type="text" id="amount" readonly style="border:0; color:#f6931f; font-weight:bold;">
      </p>

      <div id="slider-range"></div>
    </div>
  </figure>
</div>