Highcharts - Donut Chart

Following is an example of a Donut Chart.
We have already seen the configuration used to draw a chart in Highcharts Configuration Syntax chapter.
Let us now see the additional configurations/steps taken.
Configure the chart type to be pie based. chart.type decides the type for the chart. Here, the default value is "line".
var chart = {
   type: 'pie'
};
highcharts_pie_donut.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 colors = Highcharts.getOptions().colors;
            var categories = ['MSIE', 'Firefox', 'Chrome', 'Safari', 'Opera'];
            
            var data = [
               {
                  y: 55.11,
                  color: colors[0],
                  drilldown: {
                     name: 'MSIE versions',
                     categories: ['MSIE 6.0', 'MSIE 7.0', 'MSIE 8.0', 'MSIE 9.0'],
                     data: [10.85, 7.35, 33.06, 2.81],
                     color: colors[0]
                  }
               }, 
               {
                  y: 21.63,
                  color: colors[1],
                  drilldown: {
                     name: 'Firefox versions',
                     categories: ['Firefox 2.0', 'Firefox 3.0', 'Firefox 3.5',
                        'Firefox 3.6', 'Firefox 4.0'],
                     
                     data: [0.20, 0.83, 1.58, 13.12, 5.43],
                     color: colors[1]
                  }
               }, 
               {
                  y: 11.94,
                  color: colors[2],
                  drilldown: {
                     name: 'Chrome versions',
                     categories: ['Chrome 5.0', 'Chrome 6.0', 'Chrome 7.0',
                        'Chrome 8.0', 'Chrome 9.0',
                        'Chrome 10.0', 'Chrome 11.0', 'Chrome 12.0'],
                     
                     data: [0.12, 0.19, 0.12, 0.36, 0.32, 9.91, 0.50, 0.22],
                     color: colors[2]
                  }
               }, 
               {
                  y: 7.15,
                  color: colors[3],
                  drilldown: {
                     name: 'Safari versions',
                     categories: ['Safari 5.0', 'Safari 4.0', 'Safari Win 5.0',
                        'Safari 4.1', 'Safari/Maxthon',
                        'Safari 3.1', 'Safari 4.1'],
                     
                     data: [4.55, 1.42, 0.23, 0.21, 0.20, 0.19, 0.14],
                     color: colors[3]
                  }
               }, 
               {
                  y: 2.14,
                  color: colors[4],
                  drilldown: {
                     name: 'Opera versions',
                     categories: ['Opera 9.x', 'Opera 10.x', 'Opera 11.x'],
                     data: [ 0.12, 0.37, 1.65],
                     color: colors[4]
                  }
               }
            ];
            var browserData = [];
            var versionsData = [];
            var i, j;
            var dataLen = data.length;
            var drillDataLen;
            var brightness;
            
            // Build the data arrays
            for (i = 0; i < dataLen; i += 1) {
               // add browser data
               browserData.push({
                  name: categories[i],
                  y: data[i].y,
                  color: data[i].color
               });

               // add version data
               drillDataLen = data[i].drilldown.data.length;
               
               for (j = 0; j < drillDataLen; j += 1) {
                  brightness = 0.2 - (j / drillDataLen) / 5;
                  versionsData.push({
                     name: data[i].drilldown.categories[j],
                     y: data[i].drilldown.data[j],
                     color: Highcharts.Color(data[i].color).brighten(brightness).get()
                  });
               }
            }
            var chart = {
               type: 'pie'
            };
            var title = {
               text: 'Browser market share, April, 2011'
            };      
            var yAxis = {
               title: {
                  text: 'Total percent market share'
               }
            };
            var tooltip = {
               valueSuffix: '%'
            };
            var plotOptions = {
               pie: {
                  shadow: false,
                  center: ['50%', '50%']
               }
            };
            var series = [
               {
                  name: 'Browsers',
                  data: browserData,
                  size: '60%',
                  
                  dataLabels: {
                     formatter: function () {
                        return this.y > 5 ? this.point.name : null;
                     },
                     color: 'white',
                     distance: -30
                  }
               }, 
               {
                  name: 'Versions',
                  data: versionsData,
                  size: '80%',
                  innerSize: '60%',
                  
                  dataLabels: {
                     formatter: function () {
                        // display only if larger than 1
                        return this.y > 1 ? '' + this.point.name + ': ' + this.y + '%' : null;
                     }
                  }
               }   
            ];     
               
            var json = {};   
            json.chart = chart; 
            json.title = title;  
            json.yAxis = yAxis;        
            json.tooltip = tooltip;  
            json.series = series;
            json.plotOptions = plotOptions;
            $('#container').highcharts(json);  
         });
      </script>
   </body>
   
</html>
Verify the result.
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