This returns true if the intersector is an element that can be used to intersect with a newly created divided path. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
  Since:  2013 
Syntax
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Parameters
- document
-  Type:  Autodesk.Revit.DB Document  
 The document.
- intersector
-  Type:  Autodesk.Revit.DB ElementId  
 The intersector.
Return Value
True if the reference can be used to create a divided path, false otherwise.Remarks
 Intersectors can be curve elements, datum planes, or divided paths. This function is should not be used to validate the input to SetIntersectors() because it does not check for self intersection of any other circular dependencies between intersectors. Use isIntersectorValidForDividedPath() instead. 
 Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentNullException | A non-optional argument was NULL |