Creates a new placeholder pipe. 
   Namespace:   Autodesk.Revit.DB.Plumbing  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 22.0.0.0 (22.1.0.0) 
  Since:  2014 
Syntax
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Parameters
- document
-  Type:  Autodesk.Revit.DB Document  
 The document.
- systemTypeId
-  Type:  Autodesk.Revit.DB ElementId  
 The ElementId of the piping system type.
- pipeTypeId
-  Type:  Autodesk.Revit.DB ElementId  
 The ElementId of the pipe type.
- levelId
-  Type:  Autodesk.Revit.DB ElementId  
 The level id for the pipe.
- startPoint
-  Type:  Autodesk.Revit.DB XYZ  
 The first point of the placeholder line.
- endPoint
-  Type:  Autodesk.Revit.DB XYZ  
 The second point of the placeholder line.
Return Value
The placeholder pipe.Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentException | The systemTypeId is not valid piping system type. -or- The pipe type pipeTypeId is not valid pipe type. -or- The ElementId levelId is not a Level. -or- The points of startPoint and endPoint are too close: for MEPCurve, the minimum length is 1/10 inch. | 
| Autodesk.Revit.Exceptions ArgumentNullException | A non-optional argument was null | 
| Autodesk.Revit.Exceptions DisabledDisciplineException | None of the following disciplines is enabled: Mechanical Electrical Piping. |