TclScreenUP is a little utility that grabs a screenshot, allowing you to set a delay prior to grabbing the shot. It also allows you to set the dimensions of the shot, shows a preview, uploads it to your Web server, then displays the URL. It allows you to save profiles with your server information, preferred browser, etc. You can have multiple profiles.
Pixane is an image processing library for Tcl that allows the scripting of all kind of image transformations. It supports reading from and writing to a large set of file formats (JPEG, PNG, GIF, BMP, WBMP, etc) and provides anti-aliased text rendering and a set of built-in fonts. It doesn't requires Tk, so it can be used to easily generate images dynamically from CGI. Binaries are provided for many platforms as dynamic libraries with no external dependencies for easy deployment. It is also a core component of the eTcl distribution.
SAOImage DS9 is an astronomical imaging and data visualization application. DS9 supports FITS images and binary tables, multiple frame buffers, region manipulation, and many scale algorithms and colormaps. It provides for easy communication with external analysis tasks and is highly configurable and extensible. DS9 is a stand-alone application that requires no installation or support files. It supports advanced features such as multiple frame buffers, mosaic images, tiling, blinking, geometric markers, colormap manipulation, scaling, arbitrary zoom, rotation, pan, and a variety of coordinate systems.
ColorExplorer is a tool for exploring the color space and finding out how colors, color names, and numerical color specifications are related. The user can specify a color by selecting its name from a list of color names, by adjusting sliders that control the mixture of red, green, and blue, by entering a numerical color specification, by copying it from the history list or elsewhere on the display, or by requesting a random color. The numerical specification of the current color and an example of that color are shown in a pair of adjacent boxes. The color name list may be searched by entering a regular expression or by requesting the closest match to the current color.
The Virtual Rendering System is a computer graphics software library for constructing interactive 3D applications. It provides a large collection of 3D rendering components which facilitate implementing 3D graphics applications and experimenting with 3D graphics and imaging algorithms. It is implemented as a C++ library. Applications can incorporate VRS as C++ library based on the C++ API. In addition, it provides a complete Tcl/Tk binding of the C++ API, called iVRS.