The default is the name of the trace file. The defaults are those used by the trev display. The colours shown in the selection dialogue may not correspond exactly to those printed, depending on the capabilities of your printer. Different colours will usually be printed using grey-scales on black and white printers. Offset must be given, and is the distance into the dash pattern at which the pattern should be started.
Print bases Allows a subsection of the trace to be printed.
The 'Visible' button sets the region to that currently displayed in the main trev window. If the display is altered, the print base settings will not change unless 'Visible' is pressed again. The whole sequence is printed if the start position is greater than the end position. The OK button will not work if the start or end positions given are outside the range of the sequence. The X and Y scales are taken from the trev display, and cannot be set independently for PostScript output.