lookupmapstack¶
pcrcalc Result = lookupmapstack(SuffixMap, index)
- SuffixMap
boolean, nominal, ordinal, scalar, directional, ldd, spatial
- index
ordinal, non spatial
- Result type of SuffixMap
spatial
Operation¶
lookupmapstack read a stack item of map stack. The index argument is computed run time, and can therefor be the result of complicated calculations such as a lookupordinal operation. The function does require that stack item with index 1 exists, even if it is not used at runtime. Stack item 1 is used to check the datatype of the resulting maps. The function may cause runtime errors if then stack item for the computed index are not available.
Example¶
lookupmapstack(mapStack,3)
will read mapStack.003