Printronix P9000 Series manual Plotting the Data, Next N Lprint

Plotting the Data

P-Series Plot Mode plots the image from the horizontal bit pattern. Figure 4-8 duplicates the pattern shown in Figure 4-4 but is modified for Odd Dot Plot. Eight dot rows are required, two characters per row, six columns per character. (The dots required to produce the pattern are shown in NO TAG on page NO TAG.)

1 2

3

DOT 4

ROW 5

6

7

8

		1st						2nd				1st		2nd
	CHARACTER						CHARACTER				CHARACTER		CHARACTER
	ODD COLUMNS						ODD COLUMNS				ASCII	DECIMAL	ASCII	DECIMAL
1	3	5	7	9	11	1	3	5	7	9	11
											*	42	@	64
												73	A	65
											\	92	@	64
											*	42	@	64
												73	A	65
											\	92	@	64
											*	42	@	64
												73	A	65

Figure 4-8. Odd Dot Plot Pattern Plan

The following program uses the Odd Dot Plot control code to produce the image.

10LPRINT ”Odd Dot Plot”

20FOR I=1 TO 8

30READ R1

40READ R2

50LPRINT CHR$(5);

60FOR N=1 TO 25

70LPRINT CHR$(R1);CHR$(R2);

80NEXT N

90LPRINT

100NEXT I

110DATA 42, 64, 73, 65, 92, 64, 42, 64, 73, 65, 92, 64, 42, 64, 73, 65

120LPRINT

DThe image is printed 25 times as shown in Figure 4-9.

DAn entire dot row is plotted in one printing pass. Consequently, the first row of all 25 images is printed in one pass, followed by the second row, etc, until all rows have been printed.

Figure 4-9. Sample Odd Dot Plot

4-10 Graphics