c-o

2024-06-10 15:12:08 +08:00
parent f6963b8e00
commit be6c2e6b92
305 changed files with 28336 additions and 5938 deletions
@@ -0,0 +1,94 @@
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+//     file="Plain.cs"
+//     Project: StgSharp
+//     AuthorGroup: Nitload Space
+//     Copyright (c) Nitload Space. All rights reserved.
+//     
+//     Permission is hereby granted, free of charge, to any person 
+//     obtaining a copy of this software and associated documentation 
+//     files (the “Software”), to deal in the Software without restriction, 
+//     including without limitation the rights to use, copy, modify, merge,
+//     publish, distribute, sublicense, and/or sell copies of the Software, 
+//     and to permit persons to whom the Software is furnished to do so, 
+//     subject to the following conditions:
+//     
+//     The above copyright notice and 
+//     this permission notice shall be included in all copies 
+//     or substantial portions of the Software.
+//     
+//     THE SOFTWARE IS PROVIDED “AS IS”, 
+//     WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+//     INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+//     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+//     IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+//     DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
+//     ARISING FROM, OUT OF OR IN CONNECTION WITH 
+//     THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//     
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+using StgSharp.Math;
+
+using System.Numerics;
+
+namespace StgSharp.Geometries
+{
+    public unsafe class Plain
+    {
+
+        internal readonly float d = -1;
+        internal vec3d origin;
+
+        internal vec3d plainParameter;
+        internal vec3d vec1;
+        internal vec3d vec2;
+
+        internal Plain(Vector4 origin, Vector4 p1, Vector4 p2)
+        {
+            this.origin = new vec3d(origin);
+
+            vec1 = new vec3d(p1 - origin);
+            vec2 = new vec3d(p2 - origin);
+        }
+
+        public Plain(vec3d o, vec3d v1, vec3d v2)
+        {
+            this.origin = o;
+            this.vec1 = v1 - (v2 * (v1.Y / v2.Y));   //计算平面在xz平面上的方向投影
+            this.vec2 = v2 - (vec1 * (v2.X / v1.X)); //计算平面在yz平面上的方向投影
+
+            //|origin|-k1*|vec1|-k2*|vec2|计算plainParameter.Z；
+            plainParameter.Z = origin.Z - (vec1.Z * (origin.X / vec1.X)) - (vec2.Z * (origin.Y / vec2.Y));
+            //根据plainParameter.Z和对应的方向矢量计算plainParameter.X和plainParameter.Y
+            plainParameter.X = vec1.X * (vec1.Z / plainParameter.Z);
+            plainParameter.Y = vec2.Y * (vec2.Z / plainParameter.Z);
+
+            plainParameter.X = 1 / plainParameter.X;
+            plainParameter.Y = 1 / plainParameter.Y;
+            plainParameter.Z = 1 / plainParameter.Z;
+        }
+
+        public Plain(Point p1, Point p2, Point p3)
+        {
+            vec3d origin = p1.Coord;
+            vec3d v1 = p2.Coord - origin;
+            vec3d v2 = p3.Coord - origin;
+
+
+            vec1 = v1 - (v2 * (v1.Y / v2.Y));   //计算平面在xz平面上的方向投影
+            vec2 = v2 - (vec1 * (v2.X / v1.X)); //计算平面在yz平面上的方向投影
+
+            //|origin|-k1*|vec1|-k2*|vec2|计算plainParameter.Z；
+            plainParameter.Z = origin.Z - (vec1.Z * (origin.X / vec1.X)) - (vec2.Z * (origin.Y / vec2.Y));
+            //根据plainParameter.Z和对应的方向矢量计算plainParameter.X和plainParameter.Y
+            plainParameter.X = vec1.X * (vec1.Z / plainParameter.Z);
+            plainParameter.Y = vec2.Y * (vec2.Z / plainParameter.Z);
+
+            plainParameter.X = 1 / plainParameter.X;
+            plainParameter.Y = 1 / plainParameter.Y;
+            plainParameter.Z = 1 / plainParameter.Z;
+        }
+
+    }
+}