Tcl (Tool Command Language) is a very powerful but easy to learn dynamic programming language, suitable for a very wide range of uses, including web and desktop applications, networking, administration, testing and many more.
Open source and business-friendly, Tcl is a mature yet evolving language that is truly cross platform, easily deployed and highly extensible.
Tk is a graphical user interface toolkit that takes developing desktop applications to a higher level than conventional approaches.
Tk is the standard GUI not only for Tcl, but for many other dynamic languages, and can produce rich, native applications that run unchanged across Windows, Mac OS X, Linux and more.
It allows you to create apps that support gesture and voice recognition
Useful Tool for Designers
convert dwg and dxf files into pdf files
Convert DWG to PDF or convert PDF to DWG as you wish without the need of AutoCAD.
MeshMagic 3D allows users to work with 3D files using an intuitive interface.
Picture to Drawing PRO is designed for turning an image into a professional color or grayscale sketch in one click.
Spin 3D is an easy to use 3D file converter.
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