Highcharts - 丢失数据的区域图

以下实例演示了丢失值区域图。

我们在前面的章节已经了解了 Highcharts 基本配置语法。 接下来让我们来看下其他的配置。在 chart 中添加 spacingBottom 属性。

chart 配置

将 chart 的 spacingBottom 属性设置为 30。它表示图表底部边缘与内容(绘图区域、轴标题和标签、顶部位置的标题、副标题或图例)之间的空间 )。

var chart = {
   type: 'area',
   spacingBottom: 30
};

示例

文件名:highcharts_area_missing.htm

<html>
   <head>
      <title>Highcharts 教程</title>
      <script src = "https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
      <script src = "https://code.highcharts.com/highcharts.js"></script>  
   </head>
   
   <body>
      <div id = "container" style = "width: 550px; height: 400px; margin: 0 auto"></div>
      <script language = "JavaScript">
         $(document).ready(function() {  
            var chart = {
               type: 'area',
               spacingBottom: 30
            };
            var title = {
               text: 'Fruit consumption *'   
            }; 
            var subtitle = {
               text: '* Jane\'s banana consumption is unknown',
               floating: true,
               align: 'right',
               verticalAlign: 'bottom',
               y: 15
            };
            var legend = {
               layout: 'vertical',
               align: 'left',
               verticalAlign: 'top',
               x: 150,
               y: 100,
               floating: true,
               borderWidth: 1,
               
               backgroundColor: (
                  Highcharts.theme && Highcharts.theme.legendBackgroundColor) || 
                     '#FFFFFF'
            };
            var xAxis = {
               categories: ['Apples', 'Pears', 'Oranges', 'Bananas', 'Grapes',
                  'Plums', 'Strawberries', 'Raspberries']      
            };
            var yAxis = {
               title: {
                  text: 'Y-Axis'
               },
               labels: {
                  formatter: function () {
                     return this.value;
                  }
               }
            };
            var tooltip = {
               formatter: function () {
                  return '<b>' + this.series.name + '</b><br/>' +
                     this.x + ': ' + this.y;
               }
            };
            var plotOptions = {
               area: {
                  fillOpacity: 0.5
               }
            };
            var credits = {
               enabled: false
            };
            var series = [
               {
                  name: 'John',
                  data: [0, 1, 4, 4, 5, 2, 3, 7]
               }, 
               {
                  name: 'Jane',
                  data: [1, 0, 3, null, 3, 1, 2, 1]
               }
            ];     
      
            var json = {};   
            json.chart = chart; 
            json.title = title; 
            json.subtitle = subtitle; 
            json.xAxis = xAxis;
            json.yAxis = yAxis;
            json.legend = legend;
            json.tooltip = tooltip;
            json.plotOptions = plotOptions;
            json.credits = credits;
            json.series = series;
            $('#container').highcharts(json);
         });
      </script>
   </body>
   
</html>

以上图表实例的输出结果

❮ highcharts_area_charts.html