IBM 6400 Programmer's Reference Manual page 215

bar code symbol. A combination of characters
including start and stop characters, quiet zones, data
characters, and check characters required by a
particular symbology, that form a complete, scannable
entity. See also bar code.
bar height. In bar codes, the bar dimension
perpendicular to the bar width. Synonymous with bar
length and height.
bar length. In bar codes, the bar dimension
perpendicular to the bar width. Synonymous with bar
height and height.
baseline. A conceptual line with respect to which
successive characters are aligned. See also
character baseline. Synonymous with printing
baseline and sequential baseline.
baseline coordinate. One of a pair of values that
identify the position of an addressable position with
respect to the origin of a specified I,B coordinate
system. This value is specified as a distance in
addressable positions from the I axis of an I,B
coordinate system. Synonymous with B-coordinate.
baseline direction (B). The direction in which
successive lines of text appear on a logical page.
Synonymous with baseline progression and
B-direction.
baseline increment. The distance between
successive baselines.
baseline progression (B). The direction in which
successive lines of text appear on a logical page.
Synonymous with baseline direction and B-direction.
B axis. The axis of the I,B coordinate system that
extends in the baseline or B-direction. The B axis
does not have to be parallel to the Y
bounding X ,Y coordinate space.
p p
BCOCA. See Bar Code Object Content Architecture.
B-coordinate. One of a pair of values that identify
the position of an addressable position with respect to
the origin of a specified I,B coordinate system. This
value is specified as a distance in addressable
positions from the I axis of an I,B coordinate system.
Synonymous with baseline coordinate.
B-direction (B). The direction in which successive
lines of text appear on a logical page. Synonymous
with baseline direction and baseline progression.
Begin Segment Introducer (BSI). An IPDS graphics
self-defining field that precedes all of the drawing
orders in a graphics segment.
BITS. A data type for architecture syntax, indicating
one or more bytes to be interpreted as bit string
information.
axis of its
p
block or data block. Deprecated terms for object
area.
body. (1) On a printed page, the area between the
top and bottom margins that can contain data. (2) In
a book, the portion between the front matter and the
back matter.
B-space. The distance between the character
coordinate system X-axis values of the two
extremities of a character shape. See also A-space
and C-space.
C
Canadian Grocery Product Code (CGPC). The bar
code symbology used to code grocery items in
Canada.
CGPC. See Canadian Grocery Product Code.
character. (1) A member of a set of elements used
for the organization, control, or representation of
data. A character can be either a graphic character
or a control character. See also graphic character
and control character. (2) In bar codes, a single
group of bars and spaces that represent an individual
number, letter, punctuation mark, or other symbol.
character angle. The angle that is between the
baseline of a character string and the horizontal axis
of a presentation space or physical medium.
character attribute. A characteristic that controls the
appearance of a character or character string.
character baseline. A conceptual reference line that
is coincident with the X axis of the character
coordinate system.
character box. A conceptual rectangular box with two
sides parallel to the character baseline. A character's
shape is formed within a character box by a
presentation process, and the character box is then
positioned in a presentation space or on a physical
medium. The character box can be rotated before it
is positioned.
character cell size. The size of a rectangle in a
drawing space used to scale font symbols into the
drawing space.
character code. An element of a code page or a cell
in a code table to which a character can be assigned.
The element is associated with a binary value. The
assignment of a character to an element of a code
page determines the binary value that will be used to
represent each occurrence of the character in a
character string.
character coordinate system. An orthogonal
coordinate system that defines font and character
measurement distances. The origin is the character
Glossary of Abbreviations and Definitions
Glossary
199