103 lines
2.7 KiB
C#
103 lines
2.7 KiB
C#
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// -----------------------------------------------------------------------
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// <copyright file="HalfEdge.cs">
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// Triangle.NET code by Christian Woltering, http://triangle.codeplex.com/
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// </copyright>
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// -----------------------------------------------------------------------
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namespace UnityEngine.U2D.Animation.TriangleNet
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.Topology.DCEL
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{
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internal class HalfEdge
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{
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internal int id;
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internal int mark;
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internal Vertex origin;
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internal Face face;
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internal HalfEdge twin;
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internal HalfEdge next;
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/// <summary>
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/// Gets or sets the half-edge id.
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/// </summary>
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public int ID
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{
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get { return id; }
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set { id = value; }
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}
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public int Boundary
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{
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get { return mark; }
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set { mark = value; }
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}
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/// <summary>
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/// Gets or sets the origin of the half-edge.
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/// </summary>
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public Vertex Origin
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{
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get { return origin; }
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set { origin = value; }
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}
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/// <summary>
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/// Gets or sets the face connected to the half-edge.
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/// </summary>
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public Face Face
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{
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get { return face; }
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set { face = value; }
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}
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/// <summary>
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/// Gets or sets the twin of the half-edge.
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/// </summary>
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public HalfEdge Twin
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{
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get { return twin; }
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set { twin = value; }
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}
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/// <summary>
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/// Gets or sets the next pointer of the half-edge.
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/// </summary>
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public HalfEdge Next
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{
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get { return next; }
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set { next = value; }
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="HalfEdge" /> class.
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/// </summary>
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/// <param name="origin">The origin of this half-edge.</param>
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public HalfEdge(Vertex origin)
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{
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this.origin = origin;
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="HalfEdge" /> class.
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/// </summary>
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/// <param name="origin">The origin of this half-edge.</param>
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/// <param name="face">The face connected to this half-edge.</param>
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public HalfEdge(Vertex origin, Face face)
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{
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this.origin = origin;
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this.face = face;
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// IMPORTANT: do not remove the (face.edge == null) check!
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if (face != null && face.edge == null)
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{
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face.edge = this;
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}
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}
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public override string ToString()
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{
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return string.Format("HE-ID {0} (Origin = VID-{1})", id, origin.id);
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}
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}
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}
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