The basis of the X axis of this transformation.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0)
Syntax
Remarks
The X axis of the old coordinate system in the new coordinate system, or the 1st column of the conventional 3x4 matrix representation.
Exceptions
Exception | Condition |
---|---|
Autodesk.Revit.Exceptions InvalidOperationException | Thrown when the transform is internally marked as read-only. |