The direction of the reference plane.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 16.0.0.0 (16.0.0.0)

Syntax

C#
`public XYZ Direction { get; set; }`

Visual Basic
`Public Property Direction As XYZ Get Set`

Visual C++
`public: property XYZ^ Direction { XYZ^ get (); void set (XYZ^ value); }`

Remarks

When setting this property, an exception will be thrown if the direction vector is not perpendicular to the normal vector.

Exception	Condition
Autodesk.Revit.Exceptions ArgumentNullException	When setting this property: A non-optional argument was NULL
Autodesk.Revit.Exceptions ArgumentOutOfRangeException	When setting this property: newDir has zero length.