Type Mapping for IFC Export

From this preset dialog, click the Map IFC Types for Export to access the mapping definitions.

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When a model is exported to IFC format, every one of its elements is assigned an IFC Type.

For further definition, see IFC Type.

This dialog defines how to assigns an IFC Type to each exported ARCHICAD element. There are two methods: By Element Type, or By Classification.

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Note: The Type Mapping preset of the Preview Translator has an additional function: to define the default IFC Type classification of elements in the current ARCHICAD project.

See also Preview Translator.

Mapping by Element Type

Assigns each ARCHICAD Element Type automatically to a default, basic IFC Type, corresponding to its ARCHICAD tool or (for GDL objects) to its Object Subtype.

If you choose this method, no further manual mapping is needed. The rest of the dialog controls are inactive.

For more details, see Built-in IFC Element Type Mapping for ARCHICAD.

Mapping by Classification

Maps each ARCHICAD Classification to an IFC Type, Type Product, and/or Predefined Type. This method allows for flexible and detailed IFC Type classification, according to specific IFC standards.

Choose a Classification System (among those defined in the ARCHICAD project) to display its classification structure in the tree at left.

The Classifications of the selected System are now listed at left. Select each one to map it to an IFC Type (on the right), to be assigned to classified ARCHICAD elements at export.

Mapping Status: by Parent

Maps the selected Classification to the same IFC Type as its parent Classification. For such Classifications, you don’t have to define the IFC Type, because it will automatically get the same one as its parent.

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Mapping Status: Custom

Maps the Classification to an IFC Type selected by you. This allows you to assign more specific IFC Type assignments to the exported elements.

If the chosen IFC Type or IFC Type Product have Predefined Types, you can map those too.

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Reset Mapping

Click this button to undo the mapping definitions made since opening the dialog.

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