Creates a new radial array from a single element based on an input rotation axis. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
Syntax
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Parameters
- aDoc
-  Type:  Autodesk.Revit.DB Document  
 The view. If it is a 2d view, translation vector must be in the view plane if the element is a view-specific element.
- dBView
-  Type:  Autodesk.Revit.DB View  
 The view.
- id
-  Type:  Autodesk.Revit.DB ElementId  
 The element to array. The position of the rotation axis is determined by the center of the element's bounding boxes.
- count
-  Type:  System Int32  
 The number of array members to create. The accepted range is from 3 to 200.
- axis
-  Type:  Autodesk.Revit.DB Line  
 The rotation axis.
- angle
-  Type:  System Double  
 The angle in radians of the rotation.
- anchorMember
-  Type:  Autodesk.Revit.DB ArrayAnchorMember  
 Indicates if the translation vector specifies the location of the second member of the array, or the last member of the array.
Return Value
The elements created by the operation.Remarks
 The resulting elements will not be associated with an array element. 
 Exceptions
| Exception | Condition | 
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| Autodesk.Revit.Exceptions ArgumentException | The element id does not exist in the document -or- id is not arrayable. -or- count must be between 3 and 200. -or- The view is invalid for specific view elements array. -or- The rotation axis is invalid to array the element. | 
| Autodesk.Revit.Exceptions ArgumentNullException | A non-optional argument was NULL | 
| Autodesk.Revit.Exceptions ArgumentOutOfRangeException | A value passed for an enumeration argument is not a member of that enumeration | 
| Autodesk.Revit.Exceptions InvalidOperationException | Failed to create the radial array. |