Purpose: Return a structure containing the normalized average character size in the x and y dimensions of a single character on the current plotting device. Arguments: None: Preconditions: Postconditions: Return an anonymous structure with fields x and y. Both fields hold floating point values representing the normalized width and height, respectively, of a character cell. Invariants: Example: cs = PlotCharSize() margin.top = 1.0 - 2*cs.y Author: Randy Bremmer (rrb), January, 2002 Modification $Author: jimm $