Subproject of https://github.com/xBimTeam/xBimToolkit

This project contains set of utilities for Express language. IFC and CIS/2 are two common data standards defined as an Express schema.

The xBIM Tookit (eXtensible Building Information Modelling) is an open-source, software development BIM toolkit that supports the BuildingSmart Data Model (aka the Industry Foundation Classes IFC).

xBIM allows developers to read, create and view Building Information (BIM) Models in the IFC format. There is full support for geometric, topological operations and visualisation. In addition xBIM supports bi-directional translation between IFC and COBie formats