Use expressions to calculate properties of individual classes in a category.
The last Expression can be
TRUE which will imply that the last expression will always be assigned if all above evaluates as false
NOTE The expressions are applied in order top-down
Choose a new class and write the expression for it.
Click the “Add” button to add additional classification expressions. Click the color square to select color for the classification class.
The operators that can be used:
Standard arithmetic (
* …) and comparison operators (
< …) as well as some mathematical expressions (…) and constant values can be used in expressions.
Raised to a power
TRUE if any of the conditions separated by OR is TRUE
TRUE if all the conditions separated by AND is TRUE
Not equal to
Less than or equal to
Greater than or equal to
Always evaluates to TRUE
Always evaluates to FALSE
approximated to 3.14159
The parameters that can be used:
For details on each available property see: Object properties Details
In button-up applied order ⬆️ , meaning UV is applied first then Center and so on.
SNV (Standard Normal Variate)
UV (Unit Variance) scaling
For more on each type of pretreatment see: Pretreatments