Read Operator Description

Overview

Name:	`Read`
Full name:	`org.esa.snap.core.gpf.common.ReadOp`
Purpose:	Reads a data product from a given file location.
Version:	1.2

Description

Reads the specified file as product. This operator may serve as a source node in processing graphs, especially if multiple data products need to be read in.

Here is a sample of how the Read operator can be integrated as a node within a processing graph:

    <node id="readNode">
        <operator>Read</operator>
        <parameters>
            <file>/eodata/SST.nc</file>
            <formatName>GeoTIFF</formatName>
        </parameters>
    </node>

Sources

This operator does not have any sources.

Parameters

Name	Data Type	Default	Description	Constraints
`file`	`File`		The file from which the data product is read.	not null; non empty
`formatName`	`String`		An (optional) format name.	non empty
`sourceBands`	`String[]`		The list of source bands.
`sourceMasks`	`String[]`		The list of source masks.
`pixelRegion`	`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.
`geometryRegion`	`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.
`useAdvancedOptions`	`boolean`	`false`	Whether to use advanced options for reading of the source product.
`copyMetadata`	`boolean`	`true`	Whether to copy the metadata of the source product.