A layer built on top of the Insight Toolkit (ITK)
Img is a collection of format handlers for the Tk photo image type.
Draw vector graphics to scale using a descriptive language
Earth orbits and satellite coverage display in 3D on your laptop.
Runabc is a user interface supporting abc music notation software
Ballroom Music Player
netabc creates and renders html files with abc music notation
Doing 3D with Tcl
User interface to the Verovio JavaScript Toolkit Library
Open Source Solid Modeling CAD
Video mixer for mixing live and recorded video and audio feeds
PyMOL is an OpenGL based molecular visualization system
Panda3d to Tcl bindings
A C extension to Tk that provides functionality to modify images
Bulk Downloader for selectable Images (even Google Images)
domes, vaults and eggs - program to create 3D models and plans
Image viewer for animated GIFs