B&B Electronics VFG3000 - Manual - Manual (Page 291)

F UNCTION R EFERENCE G ET U P D OWN D ATA ( DATA , LIMIT )
R EVISION 1 P AGE 275
G
ET
U
P
D
OWN
D
ATA
(
DATA
,
LIMIT
)
A RGUMENT T YPE D ESCRIPTION
data int A steadily increasing source value.
limit int The number of values to generate.
D
ESCRIPTION
This function takes a steadily increasing value and converts it to a value that oscillates
between 0 and
limit –1. It is typically used within a demonstration database to generate
realistic looking animation, often by passing DispCount as the data parameter so that the
resulting value changes on each display update. If the GetUpDownStep function is called with
the same arguments, it will return a value indicating the direction of change of the data
returned by
GetUpDownData .
F
UNCTION
T
YPE
This function is passive.
R ETURN T YPE
int .
E XAMPLE
Data := GetUpDownData(DispCount, 100)