Highcharts中文在线手册
> Highcharts中文在线手册 > 向下钻取饼图

以下实例演示了向下钻取饼图。

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。

配置

drilldown 配置

drilldown 用于向下钻取数据，通过点击某项深入到其中的具体数据。

drilldown: {
   series: drilldownSeries
}

实例

文件名：highcharts_pie_drilldown.htm

<HTML>
<head>
<title>Highcharts 教程 | 手册网(dba.cn)</title>
   <script src="//apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
   <script src="/try/demo_source/highcharts.js"></script>
   <script src="http://code.highcharts.com/modules/drilldown.js"></script>  
   <script src="http://code.highcharts.com/modules/data.js"></script> 
</head>
<body>
<div id="container" style="width: 550px; height: 400px; margin: 0 auto"></div>
<script language="JavaScript">
$(document).ready(function() { 
 
   Highcharts.data({
      csv: document.getElementById('tsv').innerHTML,
      itemDelimiter: '\t',
      parsed: function (columns) {
         var brands = {}, brandsData = [], versions = {}, drilldownSeries = [];
         
		 // Parse percentage strings
         columns[1] = $.map(columns[1], function (value) {
            if (value.indexOf('%') === value.length - 1) {
               value = parseFloat(value);
            }
            return value;
         });

         $.each(columns[0], function (i, name) {
            var brand, version;

            if (i > 0) {

               // Remove special edition notes
               name = name.split(' -')[0];

               // Split into brand and version
               version = name.match(/([0-9]+[\.0-9x]*)/);
               if (version) {
                  version = version[0];
               }
               brand = name.replace(version, '');

               // Create the main data
               if (!brands[brand]) {
                  brands[brand] = columns[1][i];
               } else {
                  brands[brand] += columns[1][i];
               }

               // Create the version data
               if (version !== null) {
                  if (!versions[brand]) {
                     versions[brand] = [];
                  }
                  versions[brand].push(['v' + version, columns[1][i]]);
               }
            }

         });

         $.each(brands, function (name, y) {
            brandsData.push({
               name: name,
               y: y,
               drilldown: versions[name] ? name : null
            });
         });
         $.each(versions, function (key, value) {
            drilldownSeries.push({
                name: key,
                id: key,
                data: value
            });
         }); 
 
         var chart = {
            type: 'pie'
         };
         var title = {
            text: 'Browser market shares. November, 2013'   
         };    
         var subtitle = {
            text: 'Click the slices to view versions. Source: netmarketshare.com.'
         };
         var xAxis = {
            type: 'category'      
         };
         var yAxis ={
            title: {
              text: 'Total percent market share'
            }
         };  
         var tooltip = {
            headerFormat: '<span style="font-size:11px">{series.name}</span><br>',
            pointFormat: '<span style="color:{point.color}">{point.name}</span>: <b>{point.y:.2f}%</b> of total<br/>'
         };   
         var credits = {
            enabled: false
         };
         var series= [{
            name: 'Brands',
            colorByPoint: true,
            data: brandsData
         }];
         var drilldown= {
            series: drilldownSeries
         }   
      
         var json = {};   
         json.chart = chart; 
         json.title = title;   
         json.subtitle = subtitle;
         json.xAxis = xAxis;
         json.yAxis = yAxis;   
         json.tooltip = tooltip;   
         json.credits = credits;
         json.series = series;
         json.drilldown = drilldown;
         $('#container').highcharts(json);
     }
   });
});

</script>
<!-- Data from www.netmarketshare.com. Select Browsers => Desktop share by version. Download as tsv. -->
<pre id="tsv" style="display:none">
Browser Version	Total Market Share
Microsoft Internet Explorer 8.0	26.61%
Microsoft Internet Explorer 9.0	16.96%
Chrome 18.0	8.01%
Chrome 19.0	7.73%
Firefox 12	6.72%
Microsoft Internet Explorer 6.0	6.40%
Firefox 11	4.72%
Microsoft Internet Explorer 7.0	3.55%
Safari 5.1	3.53%
Firefox 13	2.16%
Firefox 3.6	1.87%
Opera 11.x	1.30%
Chrome 17.0	1.13%
Firefox 10	0.90%
Safari 5.0	0.85%
Firefox 9.0	0.65%
Firefox 8.0	0.55%
Firefox 4.0	0.50%
Chrome 16.0	0.45%
Firefox 3.0	0.36%
Firefox 3.5	0.36%
Firefox 6.0	0.32%
Firefox 5.0	0.31%
Firefox 7.0	0.29%
Proprietary or Undetectable	0.29%
Chrome 18.0 - Maxthon Edition	0.26%
Chrome 14.0	0.25%
Chrome 20.0	0.24%
Chrome 15.0	0.18%
Chrome 12.0	0.16%
Opera 12.x	0.15%
Safari 4.0	0.14%
Chrome 13.0	0.13%
Safari 4.1	0.12%
Chrome 11.0	0.10%
Firefox 14	0.10%
Firefox 2.0	0.09%
Chrome 10.0	0.09%
Opera 10.x	0.09%
Microsoft Internet Explorer 8.0 - Tencent Traveler Edition	0.09%
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