Calculates the extrusion data from a Revit geometry object. 
   Namespace:   Autodesk.Revit.DB.IFC  
  Assembly:   RevitAPIIFC  (in RevitAPIIFC.dll) Version: 2015.0.0.0 (2015.0.0.0) 
  Since:  2012 
Syntax
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Parameters
- extrusionOptions
 -  Type:  Autodesk.Revit.DB.IFC IFCExtrusionCalculatorOptions  
The options for extrusion extraction. 
- geometryObject
 -  Type:  Autodesk.Revit.DB GeometryObject  
The geometry object. 
Return Value
A collection of extrusion data calculated for the geometry. If the function fails to calculate one or more valid extrusions, this collection will be empty.Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentNullException | A non-optional argument was NULL |