qcad - A professional CAD System.
QCad is a professional CAD System. With QCad you can easily construct
and change drawings with ISO-texts and many other features and save
them as DXF-files. These DXF-files are the interface to many CAD-
systems such as AutoCAD(R) and many others.
QCad has no special invocation parameters. You can find the useful docs
in /usr/share/doc/qcad/html/