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源代码/StgSharp/Geometries/PlainGeometry/Rectangle.cs

@@ -1,4 +1,5 @@
 using StgSharp.Math;
+using System.Numerics;
 
 namespace StgSharp.Geometries
 {
@@ -6,11 +7,24 @@ namespace StgSharp.Geometries
     {
         internal Point center;
 
-        public sealed override Point RefPoint01 => center;
+        public sealed override Point RefPoint0 => center;
 
-        public sealed override Point RefPoint02 => vertex01;
+        public sealed override Point RefPoint1 => new Point(vertexMat.transpose.colum0);
 
-        public sealed override Point RefPoint03 => vertex02;
+        public sealed override Point RefPoint2 => new Point(vertexMat.transpose.colum1);
+
+        public Rectangle(
+            float v0x, float v0y, float v0z,
+            float v1x, float v1y, float v1z,
+            float v2x, float v2y, float v2z,
+            float v3x, float v3y, float v3z
+            )
+        {
+            vertexMat.mat.colum0 = new Vector4(v0x, v0y, v0z, 0);
+            vertexMat.mat.colum1 = new Vector4(v1x, v1y, v1z, 0);
+            vertexMat.mat.colum2 = new Vector4(v2x, v2y, v2z, 0);
+            vertexMat.mat.colum3 = new Vector4(v3x, v3y, v3z, 0);
+        }
 
 
 
@@ -21,14 +35,16 @@ namespace StgSharp.Geometries
         /// <returns></returns>
         public virtual Vec3d MovCenter(uint tick) => default(Vec3d);
 
-        public sealed override Vec3d MovVertex03(uint tick)
+        public sealed override Vec3d MoveVertex2(uint tick)
         {
-            return this.center.Position * 2 - this.vertex01.Position;
+            return
+                new Vec3d(this.center.position.vec * 2 - vertexMat.mat.colum0);
         }
 
-        public sealed override Vec3d MovVertex04(uint tick)
+        public sealed override Vec3d MoveVertex3(uint tick)
         {
-            return this.center.Position * 2 - this.vertex02.Position;
+            return
+                new Vec3d(this.center.position.vec * 2 - vertexMat.mat.colum1);
         }
 
         internal sealed override void OnRender(uint tick)