Indicates that a segment is a "virtual" segment introduced to describe a 180-degree bend. The radius of the bend will be taken from the Bar Type. 
   Namespace:   Autodesk.Revit.DB.Structure  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
Syntax
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Parameters
- iSegment
 -  Type:  System Int32  
Index of the segment (0 to NumberOfSegments - 1). 
Exceptions
| Exception | Condition | 
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| Autodesk.Revit.Exceptions ArgumentException | iSegment is not between 0 and NumberOfSegments. |