Daily update on 20250618-051714 by Nitload Youmu. Additional Message : Brief support to collection operation in EXPRESS. A collection type added in core lib and compilestack.

Signed-off-by: Nitload <YoumuLiu_NSI@whv0t.onmicrosoft.com>
2025-06-18 05:17:14 +08:00
parent 74c01effe4
commit c624a8ca38
300 changed files with 12227 additions and 4303 deletions
@@ -0,0 +1,145 @@
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+//     file="TriangulatedSurface.cs"
+//     Project: StepVisualizer
+//     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.HighPerformance;
+using StgSharp.Math;
+using StgSharp.Math.HighPrecision;
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Runtime.Intrinsics;
+using System.Text;
+
+namespace StgSharp.Geometries
+{
+    public class TriangulatedSurface
+    {
+
+        private HashSet<(int begin,int end)> _sides;
+
+        private List<List<int>> _sideIndices;
+        private List<int> _triangleIndices;
+        private List<Vec3> _vertices;
+
+        public TriangulatedSurface()
+        {
+            _triangleIndices = new List<int>();
+            _vertices = new List<Vec3>();
+            _sides = new HashSet<(int,int)>();
+            _sideIndices = new List<List<int>>();
+        }
+
+        /**/
+        public IEnumerable<List<int>> SideIndicesEnumeratble
+        {
+            get => _sideIndices ;
+        }
+
+        /*
+        public Triangle GetTriangle( int index )
+        {
+            Vec3HP v1,v2,v3;
+            int t = index * 3;
+            v1 = _vertices[ t + 0 ];
+            v2 = _vertices[ t + 1 ];
+            v3 = _vertices[ t + 2 ];
+            return new Triangle( v1, v2, v3 );
+        }
+        /**/
+
+        public Span<Vec3> VertexSpan
+        {
+            get => CollectionsMarshal.AsSpan( _vertices );
+        }
+
+        public Span<int> TriangleIndicesSpan
+        {
+            get => CollectionsMarshal.AsSpan( _triangleIndices );
+        }
+
+        /**/
+        public void AddIndicesByOrder( int v1, int v2, int v3 )
+        {
+            _triangleIndices.Add( v1 );
+            _triangleIndices.Add( v2 );
+            _triangleIndices.Add( v3 );
+            if( !( _sides.Remove( (v1,v2) ) || _sides.Remove( (v2, v1) ) ) ) {
+                _sides.Add( (v1, v2) );
+            }
+            if( !( _sides.Remove( (v2, v3) ) || _sides.Remove( (v3, v2) ) ) ) {
+                _sides.Add( (v2, v3) );
+            }
+            if( !( _sides.Remove( (v3, v1) ) || _sides.Remove( (v1, v3) ) ) ) {
+                _sides.Add( (v3, v1) );
+            }
+        }
+
+        public void AddVertexByOrder( Vec3 vertex )
+        {
+            _vertices.Add( vertex );
+        }
+
+        public int TriangleCount()
+        {
+            return _triangleIndices.Count / 3;
+        }
+
+        public void TrimExcess()
+        {
+            _triangleIndices.TrimExcess();
+            _vertices.TrimExcess();
+            Dictionary<int, int> side_dictionary = _sides.ToDictionary( x => x.begin, x => x.end );
+            int begin = side_dictionary.First().Key;
+            List<int> sideLoop = new List<int>( begin );
+            _sideIndices.Add( sideLoop );
+            while( side_dictionary.Count > 0 )
+            {
+                if( side_dictionary.Remove( begin, out begin ) )
+                {
+                    sideLoop.Add( begin );
+                } else
+                {
+                    begin = side_dictionary.First().Key;
+                    sideLoop = new List<int>( begin );
+                    _sideIndices.Add( sideLoop );
+                }
+            }
+            _sideIndices.TrimExcess();
+        }
+
+        public int VertexCount()
+        {
+            return _vertices.Count;
+        }
+
+    }
+}