Add a new band to a product from another product

development python
4

The merge operator is a bit unhandy to use with snappy.
But you find an example here:

Generally speaking, you have to provide names for the input products by using a map.

HashMap = jpy.get_type(‘java.util.HashMap’)
sourceProducts= HashMap()
sourceProducts.put(‘masterProduct’, red)
sourceProducts.put(‘slaveProduct1’, green)

Those names need to be used in the definition of the bands which shall be merged.
There you can also change the name, by setting the newName value.

NodeDescriptor = jpy.get_type(‘org.esa.snap.core.gpf.common.MergeOp$NodeDescriptor’)
include_1 = NodeDescriptor()
include_1.setProductId(‘masterProduct’)
include_1.setNamePattern(‘band_1’)
include_1.setNewName(‘red’)
...
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