Roland DXY-1100, Command Reference Manual

Page: 70 / 156

DR Relative Direction
FORMAT
DR run, rise [terminator]
DI [terminator]
PARAMETER RANGE
-1 2 8 .0 0 0 0 to + 1 2 7 .9 9 9 9
DEFAULT VALUE
"DR 1,0;"
Fig. DR 1
EXPLANATION
The DR command parameter “ run” is specified by a percentage (%) of (P2x - P1x) and
parameter “ rise” is specified with a percentage (%) of (P2y - P1y). The relationship between
“ run” and “ rise” is shown in Fig. DR-1. Mote that the plotting direction varies with the positions
of scaling points PI and P2. The values of “ run” and “ rise” are within - 128.0000 to
+ 127.9999 “ rise” = 0 designates
a
horizontal direction, and “ run” = 0 designates a vertical
demotion. If both are 0, an error will result.
The DR command without a parameter defaults to the value "D R1,0;” (horizontal direction). If
there is only 1 parameter, or 3 or more parameters, an error will result and the command will be
ignored.
The sign of the parameters determines the quadrant of the plotting direction, with the current
pen position as the original print.
run rise
(1)
+ +
(2) - +
(3)
...
-
(4 )
+ -
Fig. DR-2
EXAMPLE
10 ' *** DR COMMAND ***
20 OPEN "LPT1:" AS #1
30 PRINT #l,"IN;"
40 PRINT # l, "IP0,0,5000,10000;"
50 PRINT # 1,"SP1;PA1000,1000;"
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