2D & 3D TeX-Aware Vector Graphics Language
Toolkit for working with and mapping geospatial data
JaxoDraw: Feynman Diagrams made easy!
Imaging application for GNUstep and MacOS
Growth-grammar related Interactive Modelling Platform
Vector drawing program for LaTeX using PSTricks
Simple and intuitive 2D vector drawing for electronics and not only.
pgf/TikZ diagram editor
Advanced image processing toolbox for Scilab on Unix/Linux/Mac OS
A graphical Finite State Machine (FSM) designer.
Experimental surface editor prototype
A Blender 2.6+ addon that aims to implement Motion Graphs
A powerful C++ class library for image manipulation