[DISPLAY\]EXTRACT VarName [blc1 blc2 blc3 trc1 trc2 trc3]
Extract a subset of the image variable VarName and put it in the EX-
TRACTED image variable.
Without argument, the region covered by the subset is defined by the
SIZE, CENTER and RANGE values. In this case, the EXTRACTED variable di-
mensions are automatically derived from this values, and EXTRACTED can
be bigger than the actual cube defined by VarName. Areas not covered by
the initial VarName are filled out with the Blanking value of the Var-
Name, or by zeros if VarName has no blanking.
If the arguments blc1 to trc3 are specified, the subset corresponds
to VarName[blc1:trc1,blc2:trc2,blc3:trc3] of the image variable Var-
Name. The BLCi and TRCi values must correspond to a valid subset.
Gildas manager
2023-06-01