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Google Charts – 组合图

组合图有助于将每个系列呈现为以下列表中的不同标记类型：线、区域、条、烛台和阶梯区域。要为系列分配默认标记类型，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章节中看到了用于绘制此图表的配置。所以，让我们看看完整的例子。

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'));

例子

googlecharts_combination_chart.htm

现场演示

<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。