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calculate_lookup_table [2011/08/05 22:21]
admin [Notes]
calculate_lookup_table [2025/12/22 15:53] (current)
admin
Line 1: Line 1:
 ====== Calculate Lookup Table ====== ​ ====== Calculate Lookup Table ====== ​
  
-===== Description ===== +Renamed as [[Calculate Lookup Table Values]]
- +
-This container calculates a lookup table using algebraic/​logical expression involving tables and values. +
- +
-===== Inputs ===== +
- +
-^ Name            ^ Type                                              ^ Description ​                              ^ +
-| Expression ​     | [[Image Expression Type|Image Expression ​ ]]      | Algebraic or logical expression used to calculate the lookup table. | +
- +
-===== Output ===== +
- +
-^ Name   ^ Type                                  ^ Description ​         ^ +
-| Result | [[Lookup Table Type|Lookup Table  ]]  | Output lookup table. | +
- +
-===== Group ===== +
- +
-[[Functor List#Table | Table]] +
- +
-===== Notes ===== +
- +
-If the calculation of the expression diverges, the corresponding table key is not inserted in the output table. So, when possible way to remove a key from a table is returning //null//. +
- +
-The list of mathematical and logical operators that can be employed in the logic/​algebraic expression can be found in the [[Image Expression Type | image expression reference]]. Note that the operators and functions described in [[Image Expression Type#Image Operators and Functions | Image Operators and Functions]] ​ and [[Image Expression Type#Image Neighborhood Functions +
-| Image Neighborhood Functions]] can not be used in lookup table calculations. +
- +
-The tables used by the "Calculate Lookup Table" must be provided by a corresponding [[Number Table]] and the values must be provided by a corresponding [[Number Value]]+
- +
-===== Internal Name ===== +
- +
-CalculateLookupTable+