Name
area — A region defined for a callout in a graphic or code example
Synopsis
area (db.area) ::=
alt
?
Attribute synopsis
Common attributes (ID required) and common linking attributes.
Additional attributes:
coords
label
Exactly one of:
units
(enumeration) = “calspair” | “linecolumn” | “linecolumnpair” | “linerange”Each of:
units
(enumeration) = “other”otherunits (NMTOKEN)
Required attributes are shown in bold.
Description
An area
is an empty element holding information
about a region in a graphic, program listing, or screen.
The region is generally decorated with a number, symbol, or other
distinctive mark. The mark is usually used as the label for the
callout
in a calloutlist
, which
allows the reader to identify which callouts are associated with which
regions. The marks may be generated by the processing application from
the area
s, or it may be added by some other process.
(This is an interchange issue. See Appendix D.)
For a complete description of callouts, see
callout
.
Processing expectations
Suppressed. This element provides data for processing but it is not expected to be rendered directly.
The processing expectations of callout
s are
likely to deserve special consideration for interchange. See Appendix D.
The coords
, which are
required, identify the location of the region. The coordinates are
CDATA; how they are interpreted depends on the
units
specified:
calspair
The coordinates are expressed using the semantics of the CALS graphic attributes. The format of the coordinates is “x1,y1 x2,y2”. ...
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