plvasp: Specify viewport using aspect ratio only

plvasp ( aspect );
 

Selects the largest viewport with the given aspect ratio within the subpage that leaves a standard margin (left-hand margin of eight character heights, and a margin around the other three sides of five character heights).

aspect (PLFLT, input)

Ratio of length of y axis to length of x axis of resulting viewport.

Redacted form: plvasp(aspect)

This function is used in example 13.