l extreme: char; h or l, the high or low extreme to be defined 0 wavelocation: real; the location in bases of the extreme 1.0 wavebit: real; the location in bits of the extreme 0.5 waveamplitude: real; the amplitude of the wave in bits 10.6 wavelength: real; the wave length of the wave in bases -1 dash: real; the size of dashes in cm. dash <= 0 means no dashes 0 thickness: real; the thickness of the cosine wave. <=0 means default