添加项目文件。

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

@@ -0,0 +1,21 @@
+using System;
+using System.Xml.Serialization;
+
+namespace Sai.Toolkit.Core.LandXMLData
+{
+	[XmlType("SolidCategory")]
+	[Serializable]
+	public class SolidCategory
+	{
+		public SolidCategory()
+		{
+			Solids = new List<SolidInstances>();
+		}
+
+		[XmlAttribute("name")]
+		public string Name;
+
+		[XmlElement("Element")]
+		public List<SolidInstances> Solids;
+	}
+}