Returns the normal of plane in which the hook at end of bar with index barPositionIndex that is currently in Rebar. 
Namespace: Autodesk.Revit.DB.Structure
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since:  2018 
Syntax
| C# | 
|---|
 | 
| Visual Basic | 
|---|
 | 
| Visual C++ | 
|---|
 | 
Parameters
- end
 - Type: SystemInt32
The end of bar. Should be 0 for start or 1 for end. 
- barPositionIndex
 - Type: SystemInt32
An index between 0 and (GetNumberOfBars()-1). 
Return Value
The normal of plane in which the hook at end of bar with index barPositionIndex that is currently in Rebar.Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.ExceptionsArgumentOutOfRangeException | barPositionIndex is not in the range [ 0, GetNumberOfBars()-1 ]. -or- Invalid end. |