The present invention is concerned with a method and computer-based system for configuring, monitoring andor operating a graphical user interface in two or three dimensions. An input data sequence representing respective current values of the pixels of a currently-captured image frame is accepted. Each deflector has tapered edges and includes a plurality of cylindrical projections extending outward from the deflector to facilitate heat transfer. A first bias voltage may be generated to implant dopant ions into a region of the non-planar semiconductor body. In fixed position, the strap cinches to the climbing surface and operates to anchor the climber in position and stop any fall or unwanted downward movement. The transmission allows a user to conveniently engage any number of resistance packs to change the resistance level for a particular exercise.