Overview

Programming Guide

API Reference

Industry Foundation Classes (IFC) Reader

The IFC data model provides access to data used in the building and construction industry and so some of the concepts like Assembly, B-rep and PMI are not exactly the same concepts as they are with our other formats. A file does not need to have a particular extension to be read correctly by HOOPS Exchange however the file extension of IFC files that you can expect to be loaded by HOOPS Exchange is:

Our readers are updated to the latest released version within 90 days of the release of the authoring software. You can see the exact version supported in the current release here.

Assembly

The full assembly tree definition is supported. This includes maintaining any hidden attributes which may be set.

B-rep

The B-rep definition within IFC is based upon STEP. Additionally, primitives can be created by performing simple geometric operations on 2D entities.

The list of geometric objects available in IFC is:

The list of surface types available in IFC is:

The list of curve types available in IFC is:

Visualization

This visualization data for this format is generated by the HOOPS Exchange tessellation engine.

Views

Views are not a concept supported by IFC.

PMI

IFC has a concept which is close to PMI called Notes and these are supported by HOOPS Exchange. The names of the Notes in IFC are:

Miscellaneous

All attributes are read from the file.

Limitations

Support for IFCXML is not currently available.