HighCharts散点图与X轴上的日期时间没有正确绘制值

时间：2015-12-22 13:21:16

标签： datetime highcharts scatter-plot epoch

我正在使用X轴上的纪元日期时间值和Y轴上的浮点值创建高图散点图。问题是当我使用标签格式化程序将纪元时间值转换为可读时间值（＆＃34; DD-MMM-YYYY＆＃34;）时，在X轴上创建具有相同标题的多个标签，以及这些点不要与X轴上的刻度线垂直对齐。

我为它创建了一个JSFiddle（Link）。我该怎么做才能解决这个问题... 

$(function () {
$('#container').highcharts({
    chart: {
        type: 'scatter',
        zoomType: 'xy'
    },
    title: {
        text: 'Errors'
    },
    subtitle: {
        text: 'Source: Temp Data'
    },
    xAxis: {
                allowDecimals: false,
                title: {
                    text: 'days',
                    scalable: false
                },
                type: 'datetime',
                labels: {
                    formatter: function () {
                            return Highcharts.dateFormat('%d-%b-%y', moment.unix(this.value));



                    }
                },
                tickPixelInterval: 100
            },
    yAxis: {
        title: {
            text: 'Weight (kg)'
        }
    },
    legend: {
        layout: 'vertical',
        align: 'left',
        verticalAlign: 'top',
        x: 100,
        y: 70,
        floating: true,
        backgroundColor: (Highcharts.theme && Highcharts.theme.legendBackgroundColor) || '#FFFFFF',
        borderWidth: 1
    },
    plotOptions: {
        scatter: {
            marker: {
                radius: 5,
                states: {
                    hover: {
                        enabled: true,
                        lineColor: 'rgb(100,100,100)'
                    }
                }
            },
            states: {
                hover: {
                    marker: {
                        enabled: false
                    }
                }
            },
            tooltip: {
                headerFormat: '<b>{series.name}</b><br>',
                pointFormat: '{point.x} cm, {point.y} kg'
            }
        }
    },
    series: [{"name":"Positive Influencer","data":[[1448994600,41.40329],[1448994600,20.19966],[1449081000,32.26196],[1449167400,45.44334],[1449167400,43.79153],[1449167400,41.07479],[1449167400,24.75943],[1449167400,59.41171],[1449167400,62.26523],[1449167400,43.51655],[1449167400,41.14505],[1449253800,49.21474],[1449253800,41.14505],[1449253800,41.14505],[1449253800,59.45902],[1449340200,29.63791],[1449340200,31.5257],[1449426600,12.77947],[1449426600,16.81416],[1449426600,17.47938]],"color":"#A9D18E"},{"name":"Negative Influencer","data":[[1448908200,21.79101],[1448908200,21.79101],[1448908200,21.79101],[1448908200,17.06943],[1448908200,33.64876],[1448908200,11.28691],[1448908200,18.40087],[1448908200,16.87335],[1448908200,50.01515],[1448908200,20.16196],[1448908200,20.16196],[1448908200,20.16196],[1448908200,20.16196],[1448908200,20.16196],[1448908200,35.88634],[1448908200,20.16196],[1448908200,34.89129],[1448908200,12.91103],[1448908200,12.91103],[1448908200,12.91103],[1448908200,20.16196],[1448908200,24.0311],[1448994600,26.38517],[1448994600,11.80575],[1448994600,10],[1448994600,20.07552],[1448994600,32.33444],[1448994600,32.33444],[1448994600,20.16196],[1448994600,24.24678],[1448994600,26.86968],[1448994600,26.86968],[1449081000,16.27982],[1449081000,13.02332],[1449081000,25.71094],[1449081000,20.14183],[1449081000,11.01994],[1449081000,27.91542],[1449081000,27.91542],[1449081000,15.11342],[1449167400,29.38302],[1449167400,42.58746],[1449167400,13.3506],[1449167400,57.63139],[1449167400,46.52709],[1449167400,46.52709],[1449167400,27.91542],[1449167400,22.57789],[1449167400,20.14183],[1449167400,30.69887],[1449167400,18.12275],[1449167400,30.19594],[1449167400,30.19594],[1449253800,46.52709],[1449253800,13.3506],[1449253800,30.69887],[1449253800,12.30569],[1449253800,12.30569],[1449253800,11.81466],[1449253800,13.9246],[1449253800,11.80575],[1449253800,11.80575],[1449253800,18.12275],[1449253800,18.12275],[1449253800,27.91542],[1449253800,16.27982],[1449253800,16.27982],[1449253800,16.27982],[1449253800,16.27982],[1449253800,47.37541],[1449253800,16.27982],[1449253800,64.55871],[1449253800,42.33084],[1449253800,16.27982],[1449253800,22.57789],[1449253800,22.57789],[1449253800,16.27982],[1449253800,16.27982],[1449253800,50.01515],[1449253800,22.57789],[1449253800,12.91103],[1449253800,18.12275],[1449253800,81.70462],[1449253800,21.86977],[1449253800,22.57789],[1449253800,42.14268],[1449253800,21.1656],[1449253800,44.74439],[1449253800,30.48095],[1449253800,17.63912],[1449253800,42.34763],[1449253800,23.14725],[1449253800,28.20117],[1449340200,22.57789],[1449340200,24.12882],[1449340200,20.14183],[1449340200,22.57789],[1449340200,18.81954],[1449426600,24.12882],[1449426600,15.08914],[1449426600,21.53001],[1449426600,15.08914],[1449426600,15.08914],[1449426600,14.8175],[1449426600,15.08914],[1449426600,23.64472],[1449426600,49.31941],[1449426600,49.31941],[1449426600,49.31941],[1449426600,49.31941],[1449426600,49.31941],[1449426600,30.59185],[1449426600,30.59185],[1449426600,30.59185],[1449426600,23.64472],[1449426600,18.12275],[1449426600,18.12275],[1449426600,19.01658],[1449426600,10],[1449426600,10],[

1449426600,10]],"color":"#FF5252"}]
    });
});

1 个答案:

答案 0 :(得分：1)

<强> TL：DR

使用tickInterval: (24 * 3600 * 1000)

使您的x轴刻度线在午夜落下

详细答案

你说你看到“在X轴上创建了具有相同标题的多个标签”。然而，当我在最新版本的谷歌浏览器中查看您的小提琴时，x轴看起来很干净，但是标记与日期不完全一致：

screenshot from jsfiddle

我建议您尝试使用不同的浏览器来查看您的问题是否是由特定浏览器版本引起的。

您在评论中说，如果您在较大的窗口中最大化图表，则会重复某些日期标签。

我建议你制作一个更简单的情节来试图确定你的问题。

<强>更新

如果您更改格式化程序功能以包括时间和日期：

Highcharts.dateFormat('%d-%b-%y %H:%M', moment.unix(this.value))

每个tickmark都会有不同的标签，即使它们落在同一天：

time format on axis labels

或者，自定义刻度线的布局，使它们始终落在午夜。

更新2

我做了一个简化的演示，以显示与午夜对齐的刻度线和数据。重要的特征是：

tickInterval: (24 * 3600 * 1000) // the number of milliseconds in a day.

和

[Date.UTC(2015, 11, 01), 75],  // pure JavaScript to return a unix time (in milliseconds since unix epoch) of midnight on the 1st of December


$(function() {
  $('#container').highcharts({
    chart: {
      type: 'scatter',
      zoomType: 'xy'
    },
    title: {
      text: 'Datetime scatter plot demo'
    },
    subtitle: {
      text: 'for Stack Overflow'
    },
    xAxis: {
      tickInterval: (24 * 3600 * 1000), // the number of milliseconds in a day
      allowDecimals: false,
      title: {
        text: 'Date',
        scalable: false
      },
      type: 'datetime',
      labels: {
        formatter: function() {
          return Highcharts.dateFormat('%d-%b-%y', (this.value));
        }
      }
    },
    yAxis: {
      title: {
        text: 'Value'
      }
    },
    series: [{
      "name": "Demo values",
      "data": [
        [Date.UTC(2015, 11, 01), 75],
        [Date.UTC(2015, 11, 02), 70],
        [Date.UTC(2015, 11, 02), 80],
        [Date.UTC(2015, 11, 02), 45],
        [Date.UTC(2015, 11, 03), 65],
        [Date.UTC(2015, 11, 03), 40],
        [Date.UTC(2015, 11, 05), 75]
      ]
    }],
  });
});
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