HP 7475a, Руководство по эксплуатации и взаимосвязи

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1200
1100
1000
P2
900
(12,1000)
sOD
700
SALES 600
$
(V-AXIS)
500
400
300
200
100
0
Pl (0,0)
-2
-1
0
1
2
3 5
6
10 11 12
13 14
-100
-200
MONTHS
(X-AXIS)
User-Unit Scaling
AGL Scaling
Scaling points PI and P2 can also be used in conjunction with AGL,
and some prepackaged software,
to
establish software hard·clip plot·
ting limits. In AGL, the PLOTTER IS statement causes the plotter to
output the current coordinate locations of PI and P2, in plotter units.
The computer interprets the area defined by PI and P2 as the maxi·
mum software hard·clip plotting limits. Regardless of the size of the
software hard-clip plotting limits, the shortest side is scaled from 0 to
lOO
G nUs (graphic display units). The longest side is scaled from 0 to
lOO
G nUs times the ratio of the longest side divided by the shortest
side. Thus, a square plotting area will have
lOO
G nUs in each direc·
tion, but if the plotting area is twice as long in one direction as the
other, the longest side will have 200 G nus. In this coordinate system,
G nus are the default scaling units and PI is the 0, 0 origin point. AGL
also has provisions for defining and plotting in VUB (user units), With
this system, AGL programs can produce plots within any area defined
by PI and P2 without modifications to the program. Refer to your HP
computer documentation for the information you need to program in
AGL.
2-8
PLOITER OPERATION