HP PCL/PJL reference (PCL 5 Printer Language) - Technical Reference Manual Part II

19-26 The Configuration and Status Group EN

IR, Input Relative P1 and P2

This command establishes new or default locations for the scaling

points P1 and P2 relative to the PCL Picture Frame size. P1 and P2

are used by the Scale (SC) command to establish user-unit scaling.

IR can also be used in advanced techniques such as printing

mirror-images, enlarging/reducing drawings, and enlarging/reducing

relative character size, or changing label (text) direction.

IR X

,[X

;] or

IR [;]

When P1 and P2 are set using IR, the scaled area is page size-

independent. As the PCL Picture Frame changes size, P1 and P2

keep the same relative position within the PCL Picture Frame

boundaries.

z No Parameters — Defaults P1 and P2 to the lower-left and

upper-right corners of the PCL Picture Frame, respectively.

z X,Y Coordinates — Specify the location of P1 (and, optionally,

P2) as percentages of the PCL Picture Frame limits (specifying

P2 is not required). If P2 is not specified, P2 tracks P1; the P2

coordinates change so that the distances of X and Y between

P1 and P2 remain the same. This tracking process can cause

P2 to locate outside the effective window. Used carefully, the

tracking function can be useful for preparing more than one

equal-sized drawing on a page. For an example, refer to

“Drawing Equal-Sized Pictures on a Page” earlier in this chapter.

z Neither X,Y coordinate of P1 can equal the corresponding

coordinate of P2. If either coordinate of P1 equals the

corresponding coordinate of P2, the coordinate of P2 is

incremented by 1 plotter unit.

Parameter Format

Functional

Range Default

;] clamped real 0 to 100% 0,0,100,100%