
plsdidev: Set parameters that define current device-space window 

DESCRIPTION:

	Set relative margin width, aspect ratio, and relative justification
	that define current device-space window.  If you want to just use the
	previous value for any of these, just pass in the magic value
	PL_NOTSET. It is unlikely that one should ever need to change the
	aspect ratio but it's in there for completeness. If plsdidev is not
	called the default values of mar, aspect, jx, and jy are all 0. 

SYNOPSIS:

plsdidev(mar, aspect, jx, jy)

ARGUMENTS:

    mar (PLFLT, input) :    Relative margin width. 

    aspect (PLFLT, input) :    Aspect ratio. 

    jx (PLFLT, input) :    Relative justification in x. 

    jy (PLFLT, input) :    Relative justification in y. 
