diff --git a/src/CAD/IFox.CAD.Shared/ExtensionMethod/GeometryEx.cs b/src/CAD/IFox.CAD.Shared/ExtensionMethod/GeometryEx.cs
index 58e9da30362db999f44a37c97423491dd950ce82..12355c0c6980e6267bbcbf50463e88d2f9eb5961 100644
--- a/src/CAD/IFox.CAD.Shared/ExtensionMethod/GeometryEx.cs
+++ b/src/CAD/IFox.CAD.Shared/ExtensionMethod/GeometryEx.cs
@@ -617,18 +617,6 @@ public static Point3d GetMidPointTo(this Point3d pt1, Point3d pt2)
                    pt1.Z * 0.5 + pt2.Z * 0.5);
     }
 
-    /// <summary>
-    /// 获取两个点之间的中点
-    /// </summary>
-    /// <param name="pt1">第一点</param>
-    /// <param name="pt2">第二点</param>
-    /// <returns>返回两个点之间的中点</returns>
-    public static Point2d GetMidPointTo(this Point2d pt1, Point2d pt2)
-    {
-        // (pt1 + pt2) / 2; // 溢出风险
-        return new(pt1.X * 0.5 + pt2.X * 0.5,
-                   pt1.Y * 0.5 + pt2.Y * 0.5);
-    }
 
     /// <summary>
     /// 根据世界坐标计算用户坐标
diff --git a/src/CAD/IFox.CAD.Shared/ExtensionMethod/Jig/JigExTransient.cs b/src/CAD/IFox.CAD.Shared/ExtensionMethod/Jig/JigExTransient.cs
index 55f9e8e3354bd5cc5d51a36c8fb3a3feb40b8332..6dc7efc865af2262540f911b2d51a690c401e597 100644
--- a/src/CAD/IFox.CAD.Shared/ExtensionMethod/Jig/JigExTransient.cs
+++ b/src/CAD/IFox.CAD.Shared/ExtensionMethod/Jig/JigExTransient.cs
@@ -1,5 +1,4 @@
-#if acad
-namespace IFoxCAD.Cad;
+namespace IFoxCAD.Cad;
 
 /// <summary>
 /// 瞬态容器
@@ -139,5 +138,4 @@ protected virtual void Dispose(bool disposing)
         Clear();// 清空瞬态容器并移除对象在图纸上的显示
     }
     #endregion
-}
-#endif
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/CAD/IFox.CAD.Shared/ExtensionMethod/ObjectIdEx.cs b/src/CAD/IFox.CAD.Shared/ExtensionMethod/ObjectIdEx.cs
index 171d110360a6f4f650d7e0fbde3525ae59dad99d..9c2a3593a55fc2764839fdc77110d534730d8acb 100644
--- a/src/CAD/IFox.CAD.Shared/ExtensionMethod/ObjectIdEx.cs
+++ b/src/CAD/IFox.CAD.Shared/ExtensionMethod/ObjectIdEx.cs
@@ -76,8 +76,8 @@ public static ObjectId GetObjectId(this Database db, string handleString)
     {
         if (long.TryParse(handleString, System.Globalization.NumberStyles.HexNumber, null, out long l))
         {
-            var hanle = new Handle(l);
-            if (db.TryGetObjectId(hanle, out ObjectId id))
+            var handle = new Handle(l);
+            if (db.TryGetObjectId(handle, out ObjectId id))
             {
                 return id;
             }
@@ -92,7 +92,7 @@ public static ObjectId GetObjectId(this Database db, string handleString)
     /// <returns>id有效返回 <see langword="true"/>，反之返回 <see langword="false"/></returns>
     public static bool IsOk(this ObjectId id)
     {
-        return !id.IsNull && id.IsValid && !id.IsErased && !id.IsEffectivelyErased && id.IsResident;
+        return id is { IsNull: false, IsValid: true, IsErased: false, IsEffectivelyErased: false, IsResident: true };
     }
 
     /// <summary>