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Draw vector graphics to scale using a descriptive language
Drawj2d creates technical line drawings using a descriptive language. It writes pdf, svg, eps, emf and dxf vector graphics or png images. It runs on all platforms that run Java. It is inspired by Asymptote but with a tcl-like syntax and 2D only.
visualFSA is a small tool which lets you construct NFAs/DFAs [(non)deterministic finite automata]. It offers some common algorithms which can be applied to that automatons, like converting NFA -> DFA, word problem, accepted language etc.
Solvere4D is a powerful, open-source, freely available post-processor that makes it easy for anyone to generate 3D animations of 3D rigid body kinematics and kinetics, with many visualization options.
Sanchay is a collection of tools and APIs for language researchers. It has some implementations of NLP algorithms, some flexible APIs, several user friendly annotation interfaces and Sanchay Query Language for language resources.
Uberviewer is a java/swt log processor for Uberlogger (a kernel-based observatory). It allows real-time analysis of a remote OS, including process and I/O monitoring.
This tool is intended to be helpful for security researchers and malware analysts.