ACCORD is a C library for composition of SEM or scanning helium-ion microscope images with correction of drift. It is able to compose (average) large sets of extremely noisy images that were acquired by scanning charged-particle microscopes at the highest possible speeds (lowest pixel-dwell times). If the images are composed using traditional techniques, they usually become extensively blurry. The technique that is implemented in this software corrects these derogations by pre-shifting the composed frames.
The Artificial SEM Image Generator (artimagen) library generates artificial scanning electron microscope (SEM) and helium-ion microscope images of various samples, including gold-on-carbon resolution samples and some semiconductor structures. Numerous effects that appear in real SEMs are simulated (noise, drift-distortion, edge-effect, etc.), which enables assessment of imaging, metrology, and other techniques that work with SEM micrographs. Unlike the real SEM images, the artificial images exhibit defined types and amounts of these effects, which is their key advantage.
BRL-CAD is a powerful constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing support for rendering and geometric analysis, path-tracing for realistic image synthesis, network distributed framebuffer support, and image and signal-processing tools.
Cultivation explores the social interactions within a gardening community. You lead one family of gardeners, starting with a single individual, and wise choices can keep your genetic line from extinction. While breeding plants, eating, and mating, your actions impact your neighbors, and the social balance sways between conflict and compromise. Cultivation features dynamic graphics that are procedurally-generated using genetic representations and cross-breeding. In other words, game objects are "grown" in real-time instead of being hand-painted or hard-coded. Each plant and gardener in the game is unique in terms of both its appearance and behavior.
LIME is a dynamic programming language with a LISP-like syntax. It features partial function application, eager and lazy evaluation, call-by-value and call-by-reference, macros, reading/writing LIME code as data, a standard library including infinite streams, and an interactive mode with auto-indentation.
The NCBI C++ Toolkit provides portable libraries and applications for assisting genetic science. These include libraries for networking, SQL and BerkeleyDB access, CGI and HTML handling, ASN.1 and XML handling, sequence alignment engines, sequence retrieval engines, BLAST database engines, FLTK and OpenGL graphics toolkits, and basic system utilities.
Primrose is a game that presents a deep puzzle that is completely fresh. Primrose's gameplay is deceptively simple: Surround tiles of one color with another color to clear them. The surrounding tiles flip color, leading to possible chain reactions. Larger groups cleared and longer chain reactions are awarded more points. This simple setup has many interesting emergent properties, creating a challenging game without resorting to external gimmicks like time pressure. The game also features a world-wide online high score board complete with instant replay, move-by-move, of all top-scoring games.
Real-Time Control Systems Library contains a mix of software found to be useful in the development of real-time control systems at the National Institute of Standards and Technology. It includes the Neutral Messaging Language (NML), which is used for simple configurable communications for both Java and C++ applications on a variety of operating systems. It also includes classes for converting between various coordinate systems (collectively called posemath), some XML parsing and generating tools, an .ini file reader, a timer interface, and more.