Google饼图：删除饼图切片之间的白色间隙

如同这个问题 https://stackoverflow.com/questions/18784246/removing-the-white-line-between-slices-in-flot-pie-chart/22227464，但对于 Google 饼图：

如何删除 Google 饼图上切片之间的白线：

在上图中，我想删除绿色箭头突出显示的空白区域。

您可以通过设置来消除该差距pieSliceBorderColor to "transparent"。尝试以下操作谷歌代码游乐场 https://code.google.com/apis/ajax/playground/?type=visualization#pie_chart:

function drawVisualization() {
  // Create and populate the data table.
  var data = google.visualization.arrayToDataTable([
    ['Task', 'Hours per Day'],
    ['Work', 11],
    ['Eat', 2],
    ['Commute', 2],
    ['Watch TV', 2],
    ['Sleep', 7]
  ]);

  // Create and draw the visualization.
  new google.visualization.PieChart(document.getElementById('visualization')).
    draw(data, {title:"So, how was your day?", pieSliceBorderColor:"transparent"});
}