Highcharts datalabel 'callout' shape for donut chart - Javascript highcharts

Javascript examples for highcharts:Chart Label

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Description

Highcharts datalabel 'callout' shape for donut chart

Demo Code

ResultView the demo in separate window 

<html>
   <head> 
      <title>Highcharts Demo</title> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
   </head> 
   <body> 
      <script src="https://code.highcharts.com/highcharts.src.js"></script> 
      <div id="container"></div> 
      <script type="text/javascript">
Highcharts.chart('container', {
  chart: {/*from w  w w .  j a v a2 s  .co  m*/
    events: {
      render: function() {
        var chart = this,
          series = chart.series[0],
          renderer = chart.renderer;
        series.points.forEach(function(p) {
          var dl = p.dataLabel,
            x = dl.x + chart.plotLeft,
            y = dl.y + chart.plotTop,
            chartCenterX = chart.chartWidth / 2,
            chartCenterY = chart.chartHeight / 2,
            anchorX,
            anchorY;
          // destroy the old label
          if (dl.customLabel) {
            dl.customLabel.destroy();
          }
          // definitions for all the directions
          if (x < chartCenterX && y < chartCenterY) { // right bottom corner chevron
            anchorX = x + 30;
            anchorY = y + 50;
          } // more should be added here
          // create custom label
          dl.customLabel = renderer.label(p.name, x, y, 'callout', anchorX, anchorY).attr({
            fill: 'blue'
          }).css({
            color: 'white'
          }).add();
        });
      }
    }
  },
  plotOptions: {
    pie: {
      dataLabels: {
        enabled: true,
        style: {
          fontWeight: 'bold',
          color: 'white'
        },
        connectorWidth: 0,
        distance: 40,
        format: ''
      },
      startAngle: 0,
      endAngle: 360,
      center: ['50%', '50%']
    }
  },
  series: [{
    type: 'pie',
    innerSize: '80%',
    data: [
      ['Firefox', 10.38],
      ['IE', 56.33],
      ['Chrome', 24.03],
      ['Opera', 31.44]
    ]
  }]
});

      </script>  
   </body>
</html>

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