在amchart中将addData用于饼图

Question

我要在amchart中创建实时饼图，但是当我在代码中使用addData时，已经有数据添加到我以前拥有的数据中，并删除了addData中的数据不能正常工作，我的代码是< / p>

function topProtocol() {
      am4core.useTheme(am4themes_animated);

      var chart_tp = am4core.create("top-protocol", am4charts.PieChart3D);

      chart_tp.hiddenState.properties.opacity = 1; // this creates initial fade-in
      chart_tp.innerRadius = am4core.percent(30);
      chart_tp.depth = 120;

      // Create series
      chart_tp.legend = new am4charts.Legend();
      var series_tp = chart_tp.series.push(new am4charts.PieSeries3D());
      series_tp.hidden = false;
      series_tp.interpolationDuration = 20000;
      // series.renderer.inside = true;
      series_tp.dataFields.value = "value";
      series_tp.dataFields.depthValue = "value";
      series_tp.dataFields.category = "label";
      series_tp.slices.template.cornerRadius = 5;
      series_tp.colors.step = 3;
      series_tp.labels.template.disabled = false;
      series_tp.ticks.template.disabled = false;

      series_tp.slices.template.configField = "config";

intervaltp = setInterval(function(){
    var i=0;
    console.log(topPro)
    console.log(i);
    chart_tp.data(topPro)
     i=+1;
     }, 3000);
startInterval(intervaltp)
}