EngiLab Rod.2D - Version 1.10 EngiLab Rod.2D is a powerful engineering tool for the linear static analysis of plane (2D) trusses for Windows, using a 2-Degrees of Freedom per node approach. It features a Full GUI (Graphical User Interface) for pre-processing or post-processing and uses the Finite Element Method (FEM) for plane trusses for its analysis needs.