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10/10/03
CHAPTER 9 HP-GL - 23
DR - Relative direction
DR [ run, rise ] [;]
run : X direction component
rise : Y direction component
• A percentage of the distance in the X and Y directions between P1 and P2 is used as the units
• Specifies the character plot direction.
• Values for the run and rise are clamped real numbers.
• The instruction is ignored when values for both run and rise are 0.
• When the parameter field is omitted, the default value (horizontal direction) is used.
θ
run=70%
rise = 60%
(70,0)
(0,60)
(0, 100)
(0, 100)
(100, 10
0
CP - Character plot
CP X,Y [;]
X ; the number of text spaces the pen position is moved.
Y ; the number of text lines the pen position is moved.
• Moves the cursor the specified number of characters.
•
Values for X and Y are clamped real numbers.
• When the parameter field is omitted, the cursor is not moved along the X-axis but it is moved 1 character in
the negative direction along the Y-axis (identical to executing CP 0, -1;).
X increment
Y increme
n
Current position
10 '*** CPEX ***
20 LPRINT "DF;SP1;PA1000,3000;PDPR3000,0;PU;PR-3000,0;"
30 LPRINT "CP5,.55;LBABOVE THE LINE";CHR$(3);"PA2000,3000;"
40 LPRINT "XT;CP0,-1.15;LBBELOW THE LINE";CHR$(13);CHR$(10);"AND
WITH A NEAT";CHR$(3)
50 LPRINT "CP;LBMARGIN";CHR$(3)
60 END
<Sample 85>
SI - Set absolute character size
SI [ width, height ] [;]
width : the width in centimeters of printed characters
height : the height in centimeters of printed characters
• Specifies the size of characters to be plotted.
• Values for width and height are clamped real numbers.
• When the parameter field is omitted, the default values are used (width: 0.1879 cm, height: 0.2690 cm).