
plsori: Set orientation 

DESCRIPTION:

	Sets the current orientation.  If ori is equal to zero (default) then
	landscape is used (x axis is parallel to the longest edge of the
	page), otherwise portrait is used.	This option is not supported by
	all output drivers (in particular, most interactive screen drivers
	ignore the orientation).  This routine, if used, must be called before
	initializing PLplot. 

SYNOPSIS:

plsori(ori)

ARGUMENTS:

    ori (PLINT, input) :    Orientation value. 
