OpenGL rebuild project start!

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

@@ -0,0 +1,46 @@
+using StgSharp.Math;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.Runtime.CompilerServices;
+using System.Text;
+
+namespace StgSharp.Geometries
+{
+    public class Arc : IPlainGeometry
+    {
+        internal Point center;
+        internal Point beginPoint;
+        internal Point endPoint;
+        internal GetLocationHandler movCenterOperation = new GetLocationHandler(GeometryOperation.DefualtMotion);
+        internal GetLocationHandler movBeginOperation = new GetLocationHandler(GeometryOperation.DefualtMotion);
+        internal GetLocationHandler movEndOperation = new GetLocationHandler(GeometryOperation.DefualtMotion);
+
+        public override Point RefPoint01 => center;
+
+        public override Point RefPoint02 => beginPoint;
+
+        public override Point RefPoint03 => endPoint;
+
+        public virtual vec3d MoveCenter(uint tick) => movCenterOperation.Invoke(tick);
+
+        public virtual vec3d MovBegin(uint tick) => movBeginOperation.Invoke(tick);
+
+        public virtual vec3d MovEnd(uint tick) => movEndOperation.Invoke(tick);
+
+        internal override void OnRender(uint tick)
+        {
+            tick-= bornTick;
+            center._position = refOrigin._position + MoveCenter(tick);
+            beginPoint._position = refOrigin._position + MovBegin(tick);
+            endPoint._position = refOrigin._position + MovEnd(tick);
+        }
+
+        public override Line[] GetAllSides() => throw new NotImplementedException();
+
+        public override Plain GetPlain()
+        {
+            return new Plain(this.center,this.beginPoint,this.endPoint);
+        }
+    }
+}