HP L 5 manual PP, Pixel Placement Command, Parameter Format Functional

PP, Pixel Placement Command

The Pixel Placement (PP) command controls how pixels are placed on the layout grid during polygon fills. The two pixel placement modes are grid intersection or grid centered.

PP [mode;]

Parameter	Format	Functional	Parameter
		Range	Default
mode	clamped integer	0 or 1	0 (grid
			intersection)

•mode

0 grid intersection; device draws pixels centered at grid intersections (see Figure 7-1).

1 grid centered; device draws pixels centered inside the boxes created by the grid (see Figure 7-1).

	When the printer is set to grid-centered mode (mode 1), portions of a
	polygon that are zero height or zero width are not rendered. When the
	printer is set to grid intersection mode (mode 0), portions that are
	zero height or width are rendered as lines. Portions that are both zero
	height and width are rendered as dots.
	This command affects only HP-GL/2 polygons; it has no effect on
	characters, rules, or raster graphics. This command can be invoked
	multiple times during a page; it has no effect except to switch the
	model used for imaging.
	This command is the HP-GL/2 version of the PCL Pixel Placement
	command. Whatever mode is selected, using the HP-GL/2 PP
	command also applies to PCL operation. Likewise the PCL Pixel
	Placement command also affects HP-GL/2 pixel placement.
Note	Microsoft Windows fills polygons based on the grid- centered method.
	This command determines how pixels will be placed for both HP-GL/2
	and PCL operation.
	The PP command is not defaulted by an IN command.

7-22 Color Vector Graphics (HP-GL/2) EN