using System; using System.Drawing; namespace InvoicingTool { public static class Common { /// /// 根据半径、角度求圆上坐标 /// /// 圆心 /// 半径 /// 角度 /// 坐标 public static PointF GetDotLocationByAngle(PointF center, float radius, int angle) { var x = (float)(center.X + radius * Math.Cos(angle * Math.PI / 180)); var y = (float)(center.Y + radius * Math.Sin(angle * Math.PI / 180)); return new PointF(x, y); } } }