ui基本完毕，修了一大把的bug

Assets/openFracture/OpenFracture-main/Runtime/Scripts/Fragment/TriangulationPoint.cs

@@ -0,0 +1,40 @@
+using UnityEngine;
+using UnityEngine.TestTools;
+
+/// <summary>
+/// This data structure is used to represent a point during triangulation.
+/// </summary>
+public class TriangulationPoint: IBinSortable
+{
+    /// <summary>
+    /// 2D coordinates of the point on the triangulation plane
+    /// </summary>
+    public Vector2 coords;
+
+    /// <summary>
+    /// Bin used for sorting points in grid
+    /// </summary>
+    public int bin { get; set; }
+
+    /// <summary>
+    /// Original index prior to sorting
+    /// </summary>
+    public int index = 0;
+
+    /// <summary>
+    /// Instantiates a new triangulation point
+    /// </summary>
+    /// <param name="index">The index of the point in the original point list</param>
+    /// <param name="coords">The 2D coordinates of the point in the triangulation plane</param>
+    public TriangulationPoint(int index, Vector2 coords)
+    {
+        this.index = index;
+        this.coords = coords;
+    }
+
+    [ExcludeFromCoverage]
+    public override string ToString()
+    {
+        return $"{coords} -> {bin}";
+    }
+}