Debrief is an Open Source Java application used for viewing maritime vessel tracks in 2 and 3 dimensions. Tracks are read in using a number of flat-file ASCII formats, including AUTEC (RAO), PMRF and AFWTF.
Cusp is a simple 2D spline editing tool for free-form bezier splines or curves calculated by cubic spline interpolation. Its main usage is to create 2D motion paths for simple games.