diff --git a/src/IFoxCAD.Cad/ExtensionMethod/GeometryEx.cs b/src/IFoxCAD.Cad/ExtensionMethod/GeometryEx.cs
index 84b57f7d19dabd27ce64af2a8329fa176dec7526..2c1a45a3a57bcbf88afbb63f19c10c229f21f43c 100644
--- a/src/IFoxCAD.Cad/ExtensionMethod/GeometryEx.cs
+++ b/src/IFoxCAD.Cad/ExtensionMethod/GeometryEx.cs
@@ -1,4 +1,4 @@
-namespace IFoxCAD.Cad;
+namespace IFoxCAD.Cad;
 
 using System.Drawing;
 using IFoxCAD.Basal;
@@ -608,6 +608,16 @@ public static Point3d Point3d(this Point2d pt)
     {
         return new Point3d(pt.X, pt.Y, 0);
     }
+    /// <summary>
+    /// 将二维点转换为三维点
+    /// </summary>
+    /// <param name="pt">二维点</param>
+    /// <param name="z">Z值</param>
+    /// <returns>三维点</returns>
+    public static Point3d Point3d(this Point2d pt,double z)
+    {
+        return new Point3d(pt.X, pt.Y, z);
+    }
 
     /// <summary>
     /// 获取两个点之间的中点
@@ -646,4 +656,16 @@ public static Point3d Polar(this Point3d pt, double ang, double len)
     {
         return pt + Vector3d.XAxis.RotateBy(ang, Vector3d.ZAxis) * len;
     }
+    /// <summary>
+    /// 计算指定距离和角度的点
+    /// </summary>
+    /// <remarks>本函数仅适用于x-y平面</remarks>
+    /// <param name="pt">基点</param>
+    /// <param name="ang">角度，x轴正向逆时针弧度</param>
+    /// <param name="len">距离</param>
+    /// <returns>目标点</returns>
+    public static Point2d Polar(this Point2d pt, double ang, double len)
+    {
+        return pt + Vector2d.XAxis.RotateBy(ang) * len;
+    }
 }
diff --git a/src/IFoxCAD.Cad/ExtensionMethod/PointEx.cs b/src/IFoxCAD.Cad/ExtensionMethod/PointEx.cs
index b7010b52eef42271acaeddd18b3f0b262c438037..c534be66a5897f288dc64ff8b86692fac4844813 100644
--- a/src/IFoxCAD.Cad/ExtensionMethod/PointEx.cs
+++ b/src/IFoxCAD.Cad/ExtensionMethod/PointEx.cs
@@ -1,4 +1,4 @@
-namespace IFoxCAD.Cad;
+namespace IFoxCAD.Cad;
 
 public static class PointEx
 {
@@ -20,6 +20,27 @@ public static string GetHashString(this Point3d pt, int xyz = 3, int decimalReta
             _ => $"({pt.X.ToString(de)},{pt.Y.ToString(de)},{pt.Z.ToString(de)})"
         };
     }
+    /// <summary>
+    /// 两点计算弧度范围0到2Pi
+    /// </summary>
+    /// <param name="startPoint">起点</param>
+    /// <param name="endPoint">终点</param>
+    /// <param name="direction">方向</param>
+    /// <returns>弧度值</returns>
+    public static double GetAngle(this Point3d startPoint, Point3d endPoint, Vector3d? direction = null)
+    {
+        return startPoint.GetVectorTo(endPoint).AngleOnPlane(new Plane(Point3d.Origin, direction ?? Vector3d.ZAxis));
+    }
+    /// <summary>
+    /// 两点计算弧度范围0到2Pi
+    /// </summary>
+    /// <param name="startPoint">起点</param>
+    /// <param name="endPoint">终点</param>
+    /// <returns>弧度值</returns>
+    public static double GetAngle(this Point2d startPoint, Point2d endPoint)
+    {
+        return startPoint.GetVectorTo(endPoint).Angle;
+    }
 
 
 }
\ No newline at end of file