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20.3.32 Details about the 4-point curve function
20.3.32.1 Behaviour
The module calculates the function value of the vale on
Input 0
using a 4-point curve progressi-
on and outputs the result ( f(
Input 0
) = y =
Output 0
)on the
Output 0
. The curve progression is
determined as linear curve by four points as follows (see also the graphic below):

The first point results from the values of the
Input 1
(x-coordinate) and of the
Input 2
(y-coordinate).

Analogue to this, the additional points are defined via the values of the
Inputs 3
and
4, 5
and
6
as well as
7
and
8
(each with x- and y-coordinate).
Observe that the x-coordinates of the points must have increasing values. Equal or decreasing x-
coordinates are not allowed. If the point coordinates are invalidly configured (e.g. x-values iden-
tical) the result 1 (logical "true") is output on
Output 1
.
The internal data type of this module is Number. If necessary, incoming values are converted
into the internal data type before the calculation (see conversion table below).
20.3.32.2 Extended settings
This module has no additional setting options.