Subset Operator

Subset Operator Description

Overview

Name:Subset
Full name:org.esa.snap.core.gpf.common.SubsetOp
Purpose:Create a spatial and/or spectral subset of a data product.
Version:1.2

Description

This operator is used to create either spatial and/or spectral subsets of a data product. Spatial subset may be given by pixel positions (parameter {@code region}) or a geographical polygon (parameter {@code geoRegion}). Subsets of band and tie-point grid are given by name lists (parameters {@code bandNames} and {@code tiePointGridNames}).

Sources

Name Description
sourceProduct The source product to create the subset from.

Parameters

Name Data Type Default Description Constraints
sourceBands String[] The list of source bands.
region Rectangle The subset region in pixel coordinates. Use the following format: ,,, If not given, the entire scene is used. The 'geoRegion' parameter has precedence over this parameter.
geoRegion Geometry The subset region in geographical coordinates using WKT-format, e.g. POLYGON(( , , ..., )) (make sure to quote the option due to spaces in ). If not given, the entire scene is used.
subSamplingX int 1 The pixel sub-sampling step in X (horizontal image direction)
subSamplingY int 1 The pixel sub-sampling step in Y (vertical image direction)
fullSwath boolean false Forces the operator to extend the subset region to the full swath.
tiePointGridNames String[] The comma-separated list of names of tie-point grids to be copied. If not given, all bands are copied.
copyMetadata boolean false Whether to copy the metadata of the source product.