daily update on 20230302 by nitload youmu

2023-03-03 00:54:59 +08:00
parent bb71567e51
commit df2af2b2d5
37 changed files with 374 additions and 44 deletions
@@ -0,0 +1,48 @@
+using System;
+using System.Collections.Generic;
+using System.Runtime.CompilerServices;
+using System.Text;
+
+namespace StgSharp.Math
+{
+    public static unsafe partial class Vector
+    {
+        public static Vec3D To3D(this Vec2D vec)
+        {
+            return new Vec3D(vec.X, vec.Y, 0.0f);
+        }
+
+        public static Vec4D To4D(this Vec2D Vec)
+        {
+            return new Vec4D(Vec.X, Vec.Y, 0, 0);
+        }
+
+        public static Vec4D To4D(this Vec3D vec)
+        {
+            return new Vec4D(vec.X, vec.Y, vec.Z, 0);
+        }
+
+        public static Vec2D To2D(Vec3D vec, CordinatePlain plain)
+        {
+            switch (plain)
+            {
+                case CordinatePlain.XY:
+                    return new Vec2D(vec.X, vec.Y);
+                    break;
+                case CordinatePlain.YZ:
+                    return new Vec2D(vec.Y, vec.Z);
+                    break;
+                case CordinatePlain.XZ:
+                    return new Vec2D(vec.X, vec.Z);
+                    break;
+                default:
+                    return default(Vec2D);
+                    break;
+            }
+        }
+
+    }
+
+
+
+}