Table of Contents
Description
This is a collection of fuzzy-based nodes which do direct arithmetic comparisons:
| symbol | description |
|---|---|
< | less than |
<= | less than or equal to |
== | equal to |
>= | greater than or equal to |
> | greater than |
!= | not equal to |
Constraints
- Minimum number of child-nodes: 2
- Maximum number of child-nodes: 3
Calculus
If the compare node has just two child-nodes then the calculation is straight forward and is exactly as stated in the description and the node calculates to true (+1) or false (-1) if both child-nodes have valid values, otherwise it will calculate to undetermined (0).
| operator | Value1 | Value2 | output |
|---|---|---|---|
< | 3 | 4 | true (+1) |
< | 4 | 4 | false (-1) |
< | 4 | 3 | false (-1) |
<= | 3 | 4 | true (+1) |
<= | 4 | 4 | true (+1) |
<= | 4 | 3 | false (-1) |
If the compare node has three child-nodes then the third node is used to define a fuzzy curve to transition the calculation. In general (the != is opposite) the second node defines the true point on the fuzzy curve and the third point defines how far from the second node the false point is (the transition distance).
Note that in this mode < and <= are functionally equivalent as is > and >=.
| operator | Value1 | Value2 | Value3 | output |
|---|---|---|---|---|
< | 3 | 4 | 2 | true (+1) |
< | 4 | 4 | 2 | true (+1) |
< | 4.5 | 4 | 2 | +0.5 |
< | 5.0 | 4 | 2 | 0 |
< | 5.5 | 4 | 2 | -0.5 |
< | 6 | 4 | 2 | false (-1) |
== | 2 | 4 | 2 | false (-1) |
== | 3 | 4 | 2 | 0 |
== | 4 | 4 | 2 | true (+1) |
== | 5 | 4 | 2 | 0 |
== | 6 | 4 | 2 | false (-1) |