Highcharts教程

Highcharts 带有缺失值的面积图

以下是具有缺失值的面积图示例。
我们已经在Highcharts 配置语法一章中看到了用于绘制图表的配置。现在,让我们看一个带有缺失值的面积图示例。
我们在图表中添加了spacingBottom属性。

图表

将图表的 spacingBottom配置为30。它表示图表底部边缘和内容(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

highcharts_area_missing.htm
<html>
   <head>
      <title>Highcharts Tutorial</title>
      <script src = "https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/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>
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