enum MarkupSubType { kUnknownSubtype = 0, kEnumMax, kDatum_Ident = 1, kDatum_Target = 2, kDatum_EnumMax, kDimension_Distance = 1, kDimension_Distance_Offset = 2, kDimension_Distance_Cumulate = 3, kDimension_Chamfer = 4, kDimension_Slope = 5, kDimension_Ordinate = 6, kDimension_Radius = 7, kDimension_Radius_Tangent = 8, kDimension_Radius_Cylinder = 9, kDimension_Radius_Edge = 10, kDimension_Diameter = 11, kDimension_Diameter_Tangent = 12, kDimension_Diameter_Cylinder = 13, kDimension_Diameter_Edge = 14, kDimension_Diameter_Cone = 15, kDimension_Length = 16, kDimension_Length_Curvilinear = 17, kDimension_Length_Circular = 18, kDimension_Angle = 19, kDimension_EnumMax, kGdt_Fcf = 1, kGdt_EnumMax, kWelding_Line = 1, kWelding_Spot = 2, kWelding_EnumMax, kOther_Symbol_User, kOther_Symbol_Utility = 2, kOther_Symbol_Custom = 3, kOther_GeometricReference = 4, kOther_EnumMax };