Update

2026-05-13 23:02:02 +07:00
parent 5025383676
commit 93da00c206
885 changed files with 980996 additions and 1987 deletions
--- a/Assets/DA-Shared/ThirdParty/SVGMeshUnity/Internals/Cdt2d/Triangulation.cs
+++ b/Assets/DA-Shared/ThirdParty/SVGMeshUnity/Internals/Cdt2d/Triangulation.cs
@@ -0,0 +1,96 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2015 Mikola Lysenko
+
+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.
+*/
+
+namespace DA_Assets.SVGMeshUnity.Internals.Cdt2d
+{
+    public class Triangulation
+    {
+        // https://github.com/mikolalysenko/cdt2d
+        
+        public bool Delaunay = true;
+        public bool Interior = true;
+        public bool Exterior = true;
+        public bool Infinity = false;
+
+        public WorkBufferPool WorkBufferPool;
+
+        private MonotoneTriangulation MonotoneTriangulation = new MonotoneTriangulation();
+        private DelaunayRefine DelaunayRefine = new DelaunayRefine();
+        private Filter Filter = new Filter();
+
+        public void BuildTriangles(MeshData data)
+        {
+            //Handle trivial case
+            if ((!Interior && !Exterior) || data.Vertices.Count == 0)
+            {
+                return;
+            }
+
+            //Construct initial triangulation
+            MonotoneTriangulation.WorkBufferPool = WorkBufferPool;
+            MonotoneTriangulation.BuildTriangles(data);
+
+            //If delaunay refinement needed, then improve quality by edge flipping
+            if (Delaunay || Interior != Exterior || Infinity)
+            {
+                //Index all of the cells to support fast neighborhood queries
+                var triangles = new Triangles(data);
+
+                //Run edge flipping
+                if (Delaunay)
+                {
+                    DelaunayRefine.WorkBufferPool = WorkBufferPool;
+                    DelaunayRefine.RefineTriangles(triangles);
+                }
+
+                Filter.WorkBufferPool = WorkBufferPool;
+                Filter.Infinity = Infinity;
+
+                //Filter points
+                if (!Exterior)
+                {
+                    Filter.Target = -1;
+                    Filter.Do(triangles, data.Triangles);
+                    return;
+                }
+                if (!Interior)
+                {
+                    Filter.Target = 1;
+                    Filter.Do(triangles, data.Triangles);
+                    return;
+                }
+                if (Infinity)
+                {
+                    Filter.Target = 0;
+                    Filter.Do(triangles, data.Triangles);
+                    return;
+                }
+                
+                triangles.Fill(data.Triangles);
+
+            }
+        }
+
+    }
+}