plssym: Set symbol size

This sets up the size of all subsequent symbols drawn by plpoin and plsym. The actual height of a symbol is the product of the default symbol size and a scaling factor as for the character height.

def (PLFLT, input) The default height of a symbol in millimeters, should be set to zero if the default height is to remain unchanged. scale (PLFLT, input) Scale factor to be applied to default to get actual symbol height.

Redacted form: plssym(def, scale)

This function is used in example 29.