The TiGL Geometry Library can be used for the computation and processing of aircraft geometries stored inside CPACS files. TiGL offers many geometry related functions such as

• Point retrieval functions to compute points on the aircraft surface
• Intersection functions to compute the intersection of the aircraft with planes
• Export functions for standard CAD file formats (STEP + IGES) or mesh formats, including VTK, Collada, and STL.

The TiGL library uses the OpenCASCADE CAD kernel to represent the airplane geometry by NURBS surfaces. The library provides external interfaces for C, C++, Python, Java, MATLAB, and FORTRAN.

TiGL is shipped with the Qt based TiGL Viewer for visualizing aircraft geometries or viewing CAD files.

• Pre-Compiled Releases: https://github.com/DLR-SC/tigl/wiki/Downloads
• Nightly Builds: https://github.com/DLR-SC/tigl/actions?query=workflow%3A%22Continuous+Integration%22+event%3Aschedule

Please head over to our TiGL website: https://dlr-sc.github.io/tigl/#news

TiGL is available as Open Source and we encourage anyone to make use of it. If you are applying TiGL in a scientific environment and publish any related work, please cite the following article:

Siggel, M., Kleinert, J., Stollenwerk, T. et al.: TiGL: An Open Source Computational Geometry Library for Parametric Aircraft Design, Math.Comput.Sci. (2019). https://doi.org/10.1007/s11786-019-00401-y

A free copy of the paper is offered here: https://rdcu.be/bIGUH