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Chapter 8. PPL3 Plus Emulation GEK-00029B
228
DECVERP Set Vertical Pitch:
Selects line spacing
Source: Application Destination: Levels 1, 2
Format
CST Ps 2
Description
Selects the number of lines printed for each inch on a page. Changing
the vertical pitch changes the white space between lines, not the size
of the character. If the number of lines/inch is increased, the amount
of white space is decreased between the lines.
The selective parameter values for DECVERP are as follows:
Ps Decipoints Lines/Inch
0120 6
1120 6
290 8
360 12
4360 2
5240 3
6180 4
10 Same as Ps = 11
11 115 66 / A-size printable area
12 86 88 / A-size printable area
13 57 132 / A-size printable area
14 346 22 / A-size printable area
15 230 33 / A-size printable area
16 172 44 / A-size printable area
In some printers, the printable area is slightly smaller than the
physical paper size in use. The reduction is never more than 1/4 inch
on each edge, or a total of 1/2 inch. The DECVERP parameters 11-16
are the counterparts to 1-6. They are intended to support traditional
lines/page requirements on a print area that is slightly less than 11
inches long.
The exact vertical pitch produced for parameters 11-16 is
printer-dependent. The result is defined as lines/page on the
printable area defined for portrait printing on A-sized paper for that
printer.
Pitch Select Mode (DECPSTM) does not affect DECVERR
Side Effects
Vertical tab stops are adjusted in order to retain a constant number
of lines between vertical tabs. For example, if a vertical tab stop is set
at 12 lines with a vertical pitch of 6 lines/inch, the tab stop stored is
2 inches from the origin. But if a DECVERP command changes the
pitch to 12 lines/inch, the tab stop moves to 1 inch from the origin in
order to retain 12 lines between the origin and the tab stop.
DECVERP does not affect the active position, top and bottom
margins, or the page length.