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Font
A collection of characters that are designed to work in harmony together. A font
has several characteristics that identify it uniquely: character or symbol set,
spacing, pitch, height or point size, style, stroke weight and typeface. Fonts can
either be resident in the printer's ROM, installed on cartridge or downloaded from
your computer. You can either buy downloadable fonts commercially or create
your own. The word "font" is often wrongly used to mean "typeface". A font is
confined to a single height or point size whereas a typeface is not.
Font descriptor A block of data that is downloaded to the printer as the first part of a downloaded
font. The font descriptor describes the characteristics that are common to every
character in the font, such as stroke weight, and contains other relevant
information.
Graphics mode initial settings
The HP-GL and HP-GL/2 mode settings that are in effect when you enter HP-GL
and HP-GL/2 mode. You can restore the initial conditions using the IN; command.
Graphics units
The default units of the HP-GL and HP-GL/2 coordinate system. Also sometimes
called plotter units.
Graphics window The area on the page in which HP-GL and HP-GL/2 graphic images can appear.
Initially this is the same as the picture frame, but you can change the size, position
and aspect ratio of the graphics window using the IW command.
Gray scale A degree of continuous shading ranging from 0%, white, to 100%, black.
Hard clip limits The area of the page on which it is physically possible to print using HP-GL and
HP-GL/2 graphics language commands. The hard clip limits are determined by the
size of the physical page and are equivalent to the LaserJet mode printable area.
Hatching
A method of shading using parallel lines.
Height The height in typographic points (1/72" units) of an unaccented capital letter in a
font.
HMI Horizontal motion index. The horizontal distance that the print position moves
across the page when any single character is printed ( in a monospaced font ), or
when a space character is printed ( in a proportionally spaced font ). You can set
the HMI using printer commands, however, when you alter any font characteristic
( in effect, select a new font ) or switch between the primary and secondary fonts,
the HMI is reset to its default value based on the newly selected font.
Horizontal plot size The original horizontal size of an imported HP-GL and HP-GL/2 image.
Internal font A font that is stored in the printer ROM and is therefore always available for use,
for example, Brougham 10 pitch, or a font generated from a scalable typeface
stored in the printer's ROM, for example, Tennessee bold 15 pt.
Isotropic scaling
A form of image scaling using the SC command in HP-GL or HP-GL/2 mode in
which the user units must be of equal size. Hence it may not be possible to use the
entire graphics window to display the image.
Justification The way in which text is aligned. For example, left justification involves aligning
the left end of every line of text.
Label A text string that forms part of an HP-GL and HP-GL/2 plot.
Landscape The orientation in which the top edge of the page is longer than the side edges.