添加项目文件。

Sai.RvKits/RvIndependent/MetroGauges/LandXMLData/Interval.cs

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+using System;
+using System.Xml.Serialization;
+
+namespace Sai.Toolkit.Core.LandXMLData
+{
+	[XmlInclude(typeof(Curve))]
+	[XmlInclude(typeof(Spiral))]
+	[XmlInclude(typeof(Line))]
+	[Serializable]
+	public abstract class Interval
+	{
+		[XmlElement("Start")]
+		public TextPoint2D Start
+		{
+			get => _points[0];
+			set => _points[0] = value;
+		}
+
+		[XmlElement("End")]
+		public TextPoint2D End
+		{
+			get => _points[1];
+			set => _points[1] = value;
+		}
+
+		[XmlAttribute("length")]
+		public double Length { get; set; }
+
+		[XmlIgnore]
+		internal List<TextPoint2D> _points { get; set; }
+
+		public abstract double GetDirectionAtPoint(double station);
+
+		public void Transform(GeometryTransformations transformations)
+		{
+			Length *= transformations.ScaleFactor;
+			Line line = this as Line;
+			if (line != null)
+			{
+				line.Dir += transformations.Phi;
+			}
+			else
+			{
+				Curve curve = this as Curve;
+				if (curve != null)
+				{
+					curve.DirStart += transformations.Phi;
+					curve.DirEnd += transformations.Phi;
+					curve.Radius *= transformations.ScaleFactor;
+				}
+				else
+				{
+					Spiral spiral = this as Spiral;
+					if (spiral != null)
+					{
+						spiral.Dir += transformations.Theta;
+					}
+				}
+			}
+
+			foreach (TextPoint2D textPoint2D in _points)
+			{
+				textPoint2D.Transform(transformations, false);
+			}
+		}
+	}
+}