IEnumerator PieAdd()
        {
            chart = gameObject.GetComponent <PieChart>();
            if (chart == null)
            {
                chart = gameObject.AddComponent <PieChart>();
            }
            chart.GetChartComponent <Title>().text    = "PieChart - 饼图";
            chart.GetChartComponent <Title>().subText = "基础饼图";

            var legend = chart.GetChartComponent <Legend>();

            legend.show           = true;
            legend.location.align = Location.Align.TopLeft;
            legend.location.top   = 60;
            legend.location.left  = 2;
            legend.itemWidth      = 70;
            legend.itemHeight     = 20;
            legend.orient         = Orient.Vertical;

            chart.RemoveData();
            serie           = chart.AddSerie <Bar>("访问来源");
            serie.radius[0] = 0;
            serie.radius[1] = 110;
            serie.center[0] = 0.5f;
            serie.center[1] = 0.4f;
            chart.AddData(0, 335, "直接访问");
            chart.AddData(0, 310, "邮件营销");
            chart.AddData(0, 243, "联盟广告");
            chart.AddData(0, 135, "视频广告");
            chart.AddData(0, 1548, "搜索引擎");

            chart.onPointerClickPie = delegate(PointerEventData e, int serieIndex, int dataIndex)
            {
            };
            yield return(new WaitForSeconds(1));
        }