Chapter 1 Introduction to PRESCRIBE
1-8
cursor indicates where the next character will be printed or the next graphics will be
drawn. (The printing system does not have separate cursors for text and graphics.)
Text and graphics can be positioned at arbitrary locations on the page by moving the cur-
sor with positioning commands (MAP, for example).
Figure 1. 7. Text Positioning
TITLE
!R! BOX 1, 1; MRP 2, 1;
EXIT; LABEL
Character Spacing
Each character is printed within an individual cell as shown below. The character sits on
a line called the baseline. Characters such as y descend below the base line.
In some character fonts, all the character cells are the same size, so the number of charac-
ter positions per inch is fixed. In other fonts, the size of character cells is proportional to
the size of characters. These proportional fonts produce text that is easier to read. How-
ever, in order to align the right margin, you must use software that supports the printing
system’s proportional spacing.
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