3DMarker is a tool for the tagging of sections in 3D models.
A drawer for origami crease pattern
LaTeX Slope rulers to measure slope on topographic maps
Shape recognition for video games using fast algorithms (heuristics).
Object-oriented, interactive JavaScript vector graphics library
Turn any HTML document into a slideshow
Megalui: 2D/3D OpenGL & C/C++ Library for Scientific Visualizations
A cross-platform Java 2D graphics library using OpenGL.