Classes
| Class | Description | |
|---|---|---|
|   | ExporterIFC |  The main class provided by Revit to allow implementation of IFC export.  | 
|   | ExporterIFCUtils |  A class that contains utilities needed to implement Revit's version of the IFC export client application.  | 
|   | HostObjectSubcomponentInfo |  A class that contains roof or floor slab information, calculated by ExporterIFCUtils.ComputeSubcomponents().  | 
|   | IFCAggregate |  A collection of IFC handles or attributes.  | 
|   | IFCAggregateIterator |  A class used to iterate individual objects in an IFCAggregate.  | 
|   | IFCAnyHandle |  A handle representing an item in an IFC file.  | 
|   | IFCConnectedWallData |  A class that contains the IFC-specific information about how an element is joined to another element.  | 
|   | IFCData |  A specialized type of abstract data block that can represent any data type.  | 
|   | IFCExtrusionCalculatorOptions |  This class contains the options used to calculate extrusions from Revit geometry.  | 
|   | IFCExtrusionCalculatorUtils |  A utility class used to calculate extrusion data from Revit geometry for IFC export.  | 
|   | IFCExtrusionCreationData |  A utility object that is used to pass information related to extrusion creation.  | 
|   | IFCExtrusionData |  Represents the geometry of an extrusion (a solid body or opening) generated from Revit geometry.  | 
|   | IFCFamilyInstanceExtrusionExportResults |  This class represents the results of a geometric analysis of a family instance.  | 
|   | IFCFile |  Represents the IFC file which is being created during export.  | 
|   | IFCFileModelOptions |  This class contains options to create an IFC file model.  | 
|   | IFCFileReadOptions |  This class contains options to read an IFC file.  | 
|   | IFCFileWriteOptions |  This class contains options to write an IFC file.  | 
|   | IFCGeometryInfo |  A container class for Revit geometry extracted from an element.  | 
|   | IFCImportOptions |  IFC Import options.  | 
|   | IFCLegacyStairOrRamp |  The class contains the components of a legacy stair or ramp.  | 
|   | IFCLevelInfo |  Represents information about a particular level in the document.  | 
|   | IFCOpeningData |  A class that contains opening data including extrusion data, opening solids and opening element id.  | 
|   | IFCProductWrapper |  This class is used to ensure that elements and objects are associated with the current IfcProduct.  | 
|   | IFCRange |  Typically for IFC export, this represents the lower and upper elevations for split wall and column geometry.  | 
|   | IFCTransaction |  IFC transactions are context-like objects that guard any changes made to an IFC file.  | 
|   | IFCTransformSetter |  A state-based class that forces an extra transformation applied to objects being exported.  | 
|   | ImporterIFC |  The main class provided by Revit to allow implementation of IFC import.  | 
|   | ImporterIFCUtils |  A class that contains utilities needed to implement Revit's version of the IFC import client application.  | 
|   | RoofComponents |  A class that contains multiple roof slab infos of a roof.  | 
Interfaces
| Interface | Description | |
|---|---|---|
|   | IExporterIFC |  The interface used to implement a custom IFC exporter.  | 
|   | IIFCImporterServer |  Interface for external servers implementing IFC import.  | 
Enumerations
| Enumeration | Description | |
|---|---|---|
|   | IFCConnectedWallDataLocation |  An enumerated type that represents the location where an element is connected to a wall.  | 
|   | IFCDataPrimitiveType |  Used in operations to specify the primitive type of an IFCData.  | 
|   | IFCExtrusionAxes |  Represents the possible axes to try when generating an extrusion using IFCCreateExtrusionData.  | 
|   | IFCExtrusionBasis |  This enumerated type represents the possible bases for derivation of extrusion geometry.  | 
|   | IFCFileFormat |  The IFC file format.  | 
|   | IFCImportAction |  The action of the IFC import.  | 
|   | IFCImportIntent |  The intent of the IFC import.  | 
|   | IFCLogical |  A datatype can have values TRUE, FALSE or UNKNOWN.  | 
|   | IFCProjectLevelGUIDType |  The type of the GUID to be retrieved from Revit.  |