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Elbow Property

Elbow point of the Leader.

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

Syntax

C# 
public XYZ Elbow { get; set; }
Visual Basic 
Public Property Elbow As XYZ
	Get
	Set
Visual C++ 
public:
property XYZ^ Elbow {
	XYZ^ get ();
	void set (XYZ^ value);
}

Remarks

This is the mid-point of the leader and its purpose depends on the shape of the leader. For arc-shaped leaders it defines the radius of the arc. For a kinked leader it divides the leader line and shoulder line.

Note that straight-line leaders do not have an actual elbow; however, the value can still be obtained, although it will always equal the current anchor point. Consequently, an elbow point can be set even on a straight-line leader, but doing so will automatically change the leader's shape property.

It is allowed to set the Elbow point of a kinked leader to equal either the end point or anchor point of the leader. Doing so will effectively change the leader's shape to a straight line. However, the elbow of an arc leader is never allowed to be placed on either the end or anchor point.

Exceptions

Exception Condition
Autodesk.Revit.Exceptions ArgumentException When setting this property: A valid point must not be father then 10 miles (approx. 16 km) from the origin. -or- When setting this property: An arc leader may not have its Elbow point placed at the current position of the leader's Anchor or End point.
Autodesk.Revit.Exceptions ArgumentNullException When setting this property: A non-optional argument was NULL
Autodesk.Revit.Exceptions InvalidOperationException When setting this property: The leader is not currently owned by a valid element. A probable reason for that could be if the element has been independently deleted, or the leader has never been properly initialized.

See Also