EXTRACT
Keywords: imager

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EXTRACT

            [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.