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

EN Introduction 18-1
18
The Picture Frame
Introduction
When importing an existing HP-GL/2 file, or creating an HP-GL/2
image within an application, you use several PCL commands to
set up the picture frame size, choose the picture frame location,
and enter and exit HP-GL/2 mode. This chapter explains these
PCL commands.
The following terms are used in this discussion:
Picture presentation directives are a group of PCL commands
which:
z Provide the means to enter and exit HP-GL/2 context.
z Define a delimiting rectangle for the graphic image.
z Specify a scaling factor so existing HP-GL/2 graphics can
be scaled and placed anywhere on the PCL logical page.
Picture frame refers to the destination rectangle when
transferring HP-GL/2 graphics into the PCL logical page.
The PCL picture frame size commands specify the size of
the destination rectangle.
Picture frame scaling factor is the ratio of the size of the picture
frame to the size of the source HP-GL/2 plot. There may actually
be two scaling factors, one for the x direction and one for the
y direction.
Picture frame anchor point refers to the upper left corner of the
picture frame, which is set to the current active position (CAP) in
the PCL environment at the time the picture frame anchor point
command is executed.