C# (CSharp) Elements.AddFirst示例

示例#1

        private void AppendToStart(LineStripElement <T, TK> newElement, TK edge = null)
        {
            if (edge != null)
            {
                Edges.Add(edge);
            }

            if (InternalEquals(Start, newElement.Position))
            {
                return;
            }

            var firstVertex = Elements.First;

            if (edge != null)
            {
                if (firstVertex.Value.Elements.Count == 2)
                {
                    throw new Exception();
                }

                firstVertex.Value.Elements.Add(edge);
            }

            // ReSharper disable once PossibleNullReferenceException
            if (Collinear(
                    newElement.Position,
                    firstVertex.Value.Position,
                    firstVertex.Next.Value.Position))
            {
                firstVertex.Value = newElement;
            }
            else
            {
                Elements.AddFirst(newElement);
            }
        }

示例#2

文件： EdgesLineStrip.cs 项目： kirapetrov/OpenTkViewer

 public EdgesLineStrip(Edge3D edge)
 {
     Elements.AddFirst(new LineStripElement <Vertex3D, Edge3D>(edge.Start, edge));
     Elements.AddLast(new LineStripElement <Vertex3D, Edge3D>(edge.End, edge));
     Edges.Add(edge);
 }