Varkon is a very powerful 2D/3D CAD and modeling tool used in engineering, design, architecture, etc. It allows you to do anything from traditional 2D drafting to fully parametric interactive modeling in 2D and 3D, sculptured surface modeling, and even animation.
Though Varkon can be used as-is right away, it's almost completely customizable, allowing you to design a special purpose application with a user interface specific to that application.
Models are described in Varkon's MBS programming language, interactively in a graphical window, and or manually in a text editor. You can also use Varkon to write or change the model's -or other- code on the fly.
You can use a search engine to search this site in order to see
examples of how to use Varkon's built in functions. Do a Google
search to limit your search to the Varkon.Org site like this:
your search terms site:varkon.org
All the MBS code in the Varkon distribution is on this site for
that reason. You may also want to use a gmail account as your own
private archive so you can search proprietary code as you work with
Varkon.