Highcharts Demo

author(s): Torstein Hønsi

HTML

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

<div id="container"></div>

JavaScript

Highcharts.chart('container', {

  chart: {
    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]
    ]
  }]
});