An enumerated type listing possible placement of a box (an object of rectangular shape). 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
Syntax
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Members
| Member name | Description | 
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| Center | Placement of a box by its center point. | 
| TopLeft | Placement of a box by its top left corner. | 
| TopRight | Placement of a box by its top right corner. | 
| BottomRight | Placement of a box by its bottom right corner. | 
| BottomLeft | Placement of a box by its bottom left corner. |