daily update on 20230302 by nitload youmu

源代码/StgSharp/Vector/Vector.GetVector.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace StgSharp.Math
+{
+    public static unsafe partial class Vector
+    {
+
+        public static Vec2D GetVector(Vec4D pointPair)
+        {
+            return pointPair.Point2-pointPair.Point1;
+        }
+    }
+}