Share Email Facebook Twitter LinkedIn LineSegment.StartParameter Property Parameter associated with the start point. Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 26.2.0.0 (26.2.0.0) Syntax C# public double StartParameter { get; }Property ValueDouble See AlsoReferenceLineSegment ClassAutodesk.Revit.DB Namespace