Google图表 - 组合图表

组合图有助于将每个系列渲染为以下列表中的不同标记类型:线条,区域,条形,烛台和阶梯区域.要为系列指定默认标记类型,请使用seriesType属性.系列属性用于单独指定每个系列的属性.我们已经在 Google Charts Configuration Syntax 一章中看到了用于绘制此图表的配置.所以,让我们看一下完整的例子.

配置

我们使用 ComboChart 类来显示基于组合的图表.

//combination chart
var chart = new google.visualization.ComboChart(document.getElementById('container'));

示例

googlecharts_combination_chart.htm

<html>
   <head>
      <title>Google Charts Tutorial</title>
      <script type = "text/javascript" src = "https://www.gstatic.com/charts/loader.js">
      </script>
      <script type = "text/javascript">
         google.charts.load('current', {packages: ['corechart']});     
      </script>
   </head>
   
   <body>
      <div id = "container" style = "width: 550px; height: 400px; margin: 0 auto">
      </div>
      <script language = "JavaScript">
         function drawChart() {
            // Define the chart to be drawn.
            var data = google.visualization.arrayToDataTable([
               ['Fruit', 'Jane', 'John', 'Average'],
               ['Apples', 3, 2, 2.5],
               ['Oranges', 2, 3, 2.5],
               ['Pears', 1, 5, 3],
               ['Bananas', 3, 9, 6],
               ['Plums', 4, 2, 3]      
            ]);
              
            // Set chart options
            var options = {
               title : 'Fruits distribution',
               vAxis: {title: 'Fruits'},
               hAxis: {title: 'Person'},
               seriesType: 'bars',
               series: {2: {type: 'line'}}
            };

            // Instantiate and draw the chart.
            var chart = new google.visualization.ComboChart(document.getElementById('container'));
            chart.draw(data, options);
         }
         google.charts.setOnLoadCallback(drawChart);
      </script>
   </body>
</html>

结果

验证结果.