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        Autodesk.
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 Classes
     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. | 
|   | IFCGuidKey | IFCGuidKey is used for case-sensitive comparison of GUID values for maps and sets. | 
|   | IFCHybridImport | Driver for Performing Hybrid Imports. | 
|   | IFCHybridImportOptions | A set of options to decide on extra AnyCAD processing. | 
|   | 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. | 
|   | IFCLinkDocumentExportScope | A class that allows for the export of one linked document to IFC. | 
|   | 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
     Interfaces
    
   | Interface | Description | |
|---|---|---|
|   | IExporterIFC | The interface used to implement a custom IFC exporter. | 
|   | IIFCImporterServer | Interface for external servers implementing IFC import. | 
 Enumerations
     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. | 
|   | IFCLinkOrientation | IFC Link Orientation within the Host Document. | 
|   | IFCLinkPosition | IFC Link Position within the Host Document. | 
|   | IFCLogical | A datatype can have values TRUE, FALSE, UNKNOWN or UNSET. | 
|   | IFCProjectLevelGUIDType | The type of the GUID to be retrieved from Revit. |