CHART - Donut Pie Chart

author(s): Torstein Hønsi

HTML

<script src="http://code.highcharts.com/highcharts.js"></script>

<div id="container" style="height: 400px; width: 500px"></div>

JavaScript

$(function() {
    var chart = new Highcharts.Chart({
        chart: {
            renderTo: 'container',
            type: 'pie'
        },

        plotOptions: {
            pie: {
                borderColor: '#000000',
                innerSize: '60%'
            }
        },
        series: [{
            data: [
                ['Firefox', 44.2],
                ['IE7', 26.6],
                ['IE6', 20],
                ['Chrome', 3.1],
                ['Other', 5.4]
                ]}]
    },
    // using 
                                     
    function(chart) { // on complete
        
        var xpos = '50%';
        var ypos = '53%';
        var circleradius = 102;
    
    // Render the circle
    chart.renderer.circle(xpos, ypos, circleradius).attr({
        fill: '#ddd',
    }).add();

    // Render the text 
    chart.renderer.text('', 155, 215).css({
            textAlign: 'center'
      }).attr({
            // why doesn't zIndex get the text in front of the chart?
            zIndex: 999
        }).add();
    });
});