问配置饼图以使用最小的空间，并且从不隐藏标签

EN

$(function ()
{
  draw('container1');
  draw('container2');
  function draw(id)
  {
      $('#' + id).highcharts(
      {
          chart: {
                    plotBackgroundColor: null,
                    plotBorderWidth: null,
                    plotShadow: false,
                    type: 'pie'
                },
          title:{ text: null },
          legend: { enabled: false },
          credits: { enabled: false },
          tooltip: { pointFormat: '{series.name}: <b>{point.percentage:.1f}%</b>' },
          plotOptions: {
                          pie: {
                                  size: 100,
                                  allowPointSelect: true,
                                  cursor: 'pointer',
                                  dataLabels: {
                                      enabled: true,
                                      format: '<b>{point.name}</b>: {point.percentage:.1f} %',
                                      style: {
                                          color: (Highcharts.theme && Highcharts.theme.contrastTextColor) || 'black'
                                      }
                                  }
                              }
                      },
          series: [/* data */]
      });
  }
});