Syntax

   @SubsetRaster([REJECTABLE], <start row>, <num rows>, <start column>, <num columns>)
   @SubsetRaster([REJECTABLE], <start row>, <num rows>, <start column>, <num columns>,
      <num top padding rows>, <num left padding columns>,
      <num bottom padding rows>, <num right padding columns>)

Arguments

   REJECTABLE

      Specifies if the function will supply a rejection code and message
      to the invalid feature and output it to the rejected port, or will
      fail upon being supplied invalid features.

      A feature can be rejected for the following reasons:
         - The feature has invalid geometry
         - The raster has no bands
         - A subset of the raster cannot be made

   <start row>

      The starting row from which the subset will be taken.

      Range: unsigned integers

   <num rows>

      The number of rows taken from the raster.

      Range: positive integers

   <start column>

      The starting column from which the subset will be taken.

      Range: unsigned integers

   <num columns>

      The number of columns taken from the raster.

      Range: positive integers

   <num top padding rows>

      The number of rows of padding added to the top of the subset raster.

      Range: unsigned integers

   <num left padding columns>

      The number of columns of padding added to the left of the subset raster.

      Range: unsigned integers

   <num bottom padding rows>

      The number of rows of padding added to the bottom of the subset raster.

      Range: unsigned integers

   <num right padding columns>

      The number of columns of padding added to the right of the subset raster.

      Range: unsigned integers

Description

   The @SubsetRaster function is used to reduce a raster to a subset of its
   original size. This is essentially a clipping operation using pixel bounds
   instead of ground coordinates.

   Padding parameters may optionally be specified in order to add rows and
   columns of padding around the subset portion of the raster.

   This function accepts only features that have raster geometry and is
   unaffected by raster band and/or palette subselection.