GGobi is a visualization program for exploring high-dimensional data. It provides highly dynamic and interactive graphics such as tours, as well as familiar graphics such as the scatterplot, barchart, and parallel coordinates plots. Plots are interactive and linked with brushing and identification.
GIMP is the GNU Image Manipulation Program. It is a freely distributed piece of software suitable for such tasks as photo retouching, image composition and image authoring. It can be used as a simple paint program, an expert quality photo retouching program, an online batch processing system, a mass production image renderer, a image format converter, etc.
GIMP circle brushes provides circle brushes for use as "rubber stamps" in the GIMP. They can be used with one click instead of creating outline circles by making a circle, filling with black, shrinking, and filling with white. The following pixel sizes are provided: 6, 12, 15, 20, 24, 30, 40, 50, 60, 80, 100, 140, 200, 300, 400, 500, and 600.
GIPSpin is a graphical interface programming system which allows code to be visualized and which can generate threaded code. The user constructs code segments using visual boxes. The program flow is represented as links between the boxes. Complex elements such as threader boxes are available to implement threading. Currently, simple C code can be automatically parsed and visualized. The user can also start with the GUI to construct code segments which are turned into C++ code.