Configuration files for the IFC 4.3 Extension for Civil 3D have preset names and read from multiple directories.
This cumulative structure of naming and location allows for adding options or overriding options set in earlier files.
The following file order is used to set the IFC options.
- C:\ProgramData\Autodesk\Civil3D\[configuration file name]
- [Directory the drawing is located]\[configuration file name]
- [Directory the IFC file is located]\[configuration file name]
- [Directory the drawing is located]\[DrawingFilename]-[configuration file name]
- [Directory the IFC file is located]\[IFCFilename]-[configuration file name]
Configuration File Management Best Practices
For ease of organization and future discoverability, it is recommended to place the configuration files as follows.
- System wide settings: C:\ProgramData\Autodesk\Civil3D.
- Project wide settings: in the directory the drawing is located.
- IFC file format overrides (such as model view definitions): in the IFC file directory.
- Explicit DWG/IFC overrides: in the file name specific version directory.
There are 2 configuration files
IfcInfraConfiguration.json. Defines what IFC files contain and how they are handled.
IfcInfraExportMapping.json. Defines the mapping rules for objects being exported to IFC entities.
The IFCInfraSaveMappingConfig and IFCInfraSaveConfig commands create example versions of the configuration files in the drawing directory. New unsaved drawings generate the files to C:\ProgramData\Autodesk\Civil3D. Use these files for your initial configuration.