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Namespace: Autodesk.Revit.DB Class: ReferencePlane

ReferencePlane.Direction

Property
Description:
The direction of the reference plane.
Remarks:
When setting this property, an exception will be thrown if the direction vector is not perpendicular to the normal vector.
Syntax
public XYZ Direction { get; set; }
Exceptions
Exception Condition
ArgumentNullException When setting this property: A non-optional argument was null
ArgumentOutOfRangeException When setting this property: newDir has zero length.