Can idepix be called in snappy?

[ferdywallinx]

I can resample and do bandmath in snappy but in between i want to use idepix to create the necessary masks before calculating ndvi. I couldn’t find the function here:

http://step.esa.int/docs/v5.0/apidoc/engine/

[marpet]

Yes, you can use it.
Just call

GPF.createProduct(“Idepix.Sentinel2”, parameters, sourcproduct)

for S2 MSI data, as for other operators too. Or use “Idepix.Sentinel3.Olci” if you want to process OLCI data.

I’ve explained in this post what you can do to find the right parametrisation:

Snappy run maximum likelihood classification

for you should have a look at this wiki page. It describes the configuration and usage of snappy in general. In the examples directory you find the snappy_subset.py script which shows the usage of an operator. In the end you need to call GPF.createProduct with the name of the operator (Maximum-Likelihood-Classifier) the parameters and the source product. You can find out which parameters are available if you call on the command line gpt Maximum-Likelihood-Classifier -h or you configure the…

[clausmichele]

Hi @marpet. I’m also trying to use Idepix via snappy. However, I’m getting this error:
RuntimeError: org.esa.snap.core.gpf.OperatorException: Unknown operator 'Idepix.Sentinel3.Olci'. Is the name correctly spelled?

did something change in the past years? By the way, I have SNAP 8 installed with the latest Idepix plugin. It works fine via the SNAP GUI.

[marpet]

Hi,

Yes, maybe two or three years ago the names have changed to simplify and harmonise the names.
The operator for Idepix is now named Idepix.OLCI.

You can look up the name of an operator in the about dialog of its GUI.