wxArt2D gives wxWindows applications sophisticated vector drawing functionality. It is based on a framework supporting multiple views within a hierarchical document. Supports drawing & (Graph) editing. In-output in SVG, GDSII, XML, easy to extend.
Simulator for thermal conduction in solid material. Uses SPICE for calculations and wxWindows for providing Windows and Linux GUI.
Scripting Tcl interface to Qt multiplatform library