Share Email Facebook Twitter LinkedIn CylindricalHelix.ZVector Property The Z direction vector, which is same as the axis direction vector.Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 26.2.0.0 (26.2.0.0) Syntax C# public XYZ ZVector { get; }Property ValueXYZ See AlsoReferenceCylindricalHelix ClassAutodesk.Revit.DB Namespace