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g2 is an easy to use, portable and powerful 2D graphics library. It provides a comprehensive set of functions for simultaneous generation of graphical output on different types of devices. Presently, the following devices are supported: PostScript, GIF and X11 (xfig is in development). g2 is written in C (ANSI) and additionally has a Fortran interface.

libcaca is a graphics library that outputs text instead of pixels, so that it can work on older video cards or text terminals. It is not unlike the famous AAlib library, with the following improvements: * Unicode support * 2048 available colours (some devices can only handle 16) * dithering of colour images * advanced text canvas operations (blitting, rotations)

The primary intention of this module is to provide high-level operations for creating, loading, saving and manipulating vector graphics without having to be overly concerned about smile floormats. As the code has seen more use, it has also drifted into a general purpose geometry API.

The SciPlot Widget is a widget capable of plotting cartesian or polar graphs, including logarithmic axes in cartesian plots. The widget is subclassed directly from the Core widget class, which means that it does not depend upon any other widget set. It may be freely used with Athena, Motif, or the Open Look/Xview widget sets. Features provided in the widget include automatic scaling, legend drawing, axis labeling, PostScript output, multiple plotted lines, color support, user font specification, dashed lines, symbols drawn at points, logarithmic scales on one or both axes in cartesian plots, and degrees or radians as angles in polar plots.

GDD is a graphics device for R which uses libgd for creating bitmap output. Supported output formats are png8, png24, gif and jpeg. The main purpose of this package is to replace png/jpeg and similar native devices in R which either rely on X11 or use GhostScript are thus are very slow and not suitable in server applications. GDD also supports advanced features such as anti-aliasing of both lines and text.

Xcftools is a set of fast command-line tools for extracting information from the Gimp's native file format XCF. The tools are designed to allow efficient use of layered XCF files as sources in a build system that use 'make' and similar tools to manage automatic processing of the graphics. These tools work independently of the Gimp engine and do not require the Gimp to even be installed.

Scale2x is real-time graphics effect able to increase the size of small bitmaps guessing the missing pixels without interpolating pixels and blurring the images.

Cairo is a vector graphics library with cross-device output support. Currently supported output targets include the X Window System and in-memory image buffers. PostScript and PDF file output is planned. Cairo is designed to produce identical output on all output media while taking advantage of display hardware acceleration when available (eg. through the X Render Extension). Cairo provides a stateful user-level API with capabilities similar to the PDF 1.4 imaging model. Cairo provides operations including stroking and filling Bezier cubic splines, transforming and compositing translucent images, and antialiased text rendering.

Included in this package are: 4va: 4va is a fourth dimensional visualization program for X11. It takes as input a file describing an object in up to 4 dimensions and tumbles it in a window according to rotation values given on the command line. Ctorus, cutctorus, 4vdmake: These three programs are object file generators for 4va.

Ipe is a drawing editor for creating figures in PDF or (encapsulated) Postscript format. It supports making small figures for inclusion into LaTeX-documents as well as making multi-page PDF presentations that can be shown on-line with Acrobat Reader.