Differences

This shows you the differences between two versions of the page.

--- get_lookup_table_value [2016/05/07 18:01]
hermann [Notes]
+++ get_lookup_table_value [2026/08/28 03:20] (current)
hermann Sync from local documentation review
@@ Line 1: / Line 1: @@
 ====== Get Lookup Table Value ======
 ===== Description =====
-This functor retrieves a value from a lookup table at a specified key.
+Retrieves the value corresponding to a specified key from a lookup table.
 ===== Inputs =====
-^ Name ^ Type ^ Description ^
+^ Name  ^ Type  ^ Description  ^
-| Lookup table  | [[Lookup table Type]]  | Any lookup table.  |
+| Table  | [[Lookup Table Type]]  | Lookup table to search.  |
-| Key  | [[Real Value Type]]  | Row key.  |
+| Key  | [[Real Value Type]]  | Key to search for in Table.  |
 ===== Optional Inputs =====
-^ Name ^ Type ^ Description ^ Default Value ^
+^ Name  ^ Type  ^ Description  ^ Default Value  ^
-| Value If Not Found  | [[Real Value Type]]  | Value returned in case the key is not found.  | None  |
+| Value If Not Found  | [[Real Value Type]]  | Value returned if Key is not present in Table. If not provided, an error is reported when the key is not found. This is an advanced port.  | .none  |
 ===== Outputs =====
 ^ Name  ^ Type  ^ Description  ^
-| Value  | [[Real Value Type]]  | The value corresponding to the given key.  |
+| Value  | [[Real Value Type]]  | Value corresponding to the given key.  |
 ===== Group =====
-[[Functor List#Table | Table]]
+[[Functor List#Lookup Table | Lookup Table]]
 ===== Notes =====
-This searches for a value associated with a given key. If an exact match is not found, the result will depend on how the input port "Value If Not Found" is defined. If a default value is defined by this port, that value will be returned. Otherwise, the execution will an error and the model execution will be interrupted.
+If Key is not found in Table and Value If Not Found is not provided, this functor reports an error, interrupting the model's execution.
+To find an approximate match, or to interpolate between neighboring keys, instead use a [[Calculate Value]], [[Calculate Map]], [[Calculate Categorical Map]], or [[Calculate Lookup Table]] with one of the Lookup Table Operators described in the Image Expression Type documentation.
-It is also possible to search for an approximate match using a [[Calculate Value]], [[Calculate Map]], [[Calculate Categorical Map]] or [[Calculate Lookup Table]]. See the "Lookup Table Operators" description on the [[http://csr.ufmg.br/dinamica/dokuwiki/doku.php?id=image_expression_type#operators|Image Expression Type]] documentation.
+===== Internal Name =====
-===== Internal Name =====
 GetLookupTableValue