This class represents the results of a geometric analysis of a family instance. 
   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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Remarks
 The analysis attempts to convert the geometry of the instance into a single extrusion with additional extruded openings cutting the main solid.