daily update on 20230416 by nitload youmu

源代码/StgSharp/Geometries/Line.cs

@@ -1,6 +1,7 @@
 using Steamworks;
 using StgSharp;
 using StgSharp.Control;
+using StgSharp.Linear;
 using StgSharp.Math;
 using System;
 using System.Collections.Generic;
@@ -18,7 +19,7 @@ namespace StgSharp.Geometries
         internal RenderMode _renderMode;
         internal readonly uint bornTick;
 
-        public override Point BasePoint => _basePoint;
+        public override Point RefOrigin => _basePoint;
 
         public override Point RefPoint => _beginPoint;
 
@@ -98,5 +99,10 @@ namespace StgSharp.Geometries
         {
             throw new NotImplementedException();
         }
+
+        public override Plain GetPlain()
+        {
+            throw new ToUpperDimensionException();
+        }
     }
 }