diff --git a/src/IFoxCAD.Cad.Shared/Runtime/Env.cs b/src/IFoxCAD.Cad.Shared/Runtime/Env.cs
index 6de5354c7b160140a828cd1dcaf2db7d4da82876..4ad7aef9c9c22bfcc9af072410193847adfb3aed 100644
--- a/src/IFoxCAD.Cad.Shared/Runtime/Env.cs
+++ b/src/IFoxCAD.Cad.Shared/Runtime/Env.cs
@@ -580,6 +580,11 @@ public static int SetEnv(string? name, string? var)
     /// <returns>Bool</returns>
     public static bool IsUcs() => (short)GetVar("WORLDUCS") == 0;
 
+    /// <summary>
+    /// 获得UCS和WCS之间的角度（弧度制）
+    /// </summary>
+    /// <returns>double</returns>
+    public static double GetUcsAngle() => Editor.CurrentUserCoordinateSystem.CoordinateSystem3d.Xaxis.AngleOnPlane(new Plane(Point3d.Origin,Vector3d.ZAxis));
 
     #region dwg版本号/cad版本号/年份
     /// <summary>