The ordinate origin visibility. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 18.0.0.0 (18.2.0.0) 
  Since:  2017 Subscription Update 
  Since:  2017 Subscription Update 
Syntax
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Members
| Member name | Description | 
|---|---|
| None | Does not show the origin witness line, tick mark, or text (0'-0"). | 
| WitnessLineWithText | Shows the origin witness line, tick mark and text (0'-0"). | 
| WitnessLineOnly | Shows the origin witness line and tick mark. |