IFCReader

Nodes for loading and creating IFC models.

LoadIFCModel

Loads IFC file(s) into a model wrapper. Automatically discovers and loads related IFC files from the same directory. Geometry is extracted and cached during loading for optimal performance.

Inputs:

Parameter	Type	Description
ifcFilePath	string	Path to the primary IFC file
federationDirectory	string	Optional: Directory to search for additional IFC files. Empty searches the same directory as the primary file. Set to "none" to disable auto-discovery and load only the specified file.

Output:

Type	Description
IFCModel	Wrapper containing all loaded models with pre-built geometry cache

Usage Notes:

• Federation: When loading from a directory, all .ifc files are loaded and indexed together
• Performance: Geometry is cached during load for fast subsequent access
• Memory: Large models may take time to load

Example:

File Path: "C:\Projects\Model.ifc" Federation Directory: "" (empty for auto-discovery)

Result: IFCModel containing Model.ifc and any other IFC files in the same folder

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CreateIFCModel

Creates a new empty IFC model with minimal structure.

Inputs:

Parameter	Type	Description
filePath	string	Path where the IFC file will be saved
projectName	string	Optional: Name for the project. Default is "New Project"

Output:

Type	Description
IFCModel	Wrapper containing the new model

Created Structure:

The new model contains:

• IfcProject
  • IfcSite
    • IfcBuilding
      • IfcBuildingStorey