Missing demo data for EngeoMap (cubus_gamsberg.zip)

[Agustin Lobo]

Link to data (cubus_gamsberg.zip) mentioned in https://enmap-box.readthedocs.io/en/latest/usr_section/application_tutorials/engeomap/tutorial_engeomap.html#data is broken.

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[Andreas Janz]

Data was re-uploaded by GFZ: https://nextcloud.gfz-potsdam.de/s/MqdB3twcQHR5fCS

[Andreas Janz]

resolves #592

→ <<cset 88934874be11>>

[Agustin Lobo]

Not resolved. The library aggenesys_field_library is missing. The tutorial cannot be run without it.

[Helge Daempfling]

I have made a slight tutorial update including a new link to the complete dataset in one zip file including library and civ file. Please see Pull requests. I don’t have any privileges to commit changes.

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[Helge Daempfling]

The small tutorial update is now online containing a new link to the complete data set.

the issue can be closed.

A completely new (more easy to understand) tutorial for a revision on EnGeoMAP (3.1) is in the works.

Kind Regards

[Agustin Lobo]

I confirm

gamsberg_field_library

gamsberg_field_library.hdr

are within the zip now, but:

1. The import Spectral Profiles tool of EnMap-Box requires ENVI Spectral Libraries to be *.esl or *.sli files. This is probably just a matter of renaming gamsberg_field_library
2. gamsberg_field_library.hdr wrongly states

file type = ENVI Standard

3. cubus_gamsberg.hdr lacks the map info field. Without it, EnMap-Box kindly and repetitively asks the usser to “Specify CRS for layer cubus_gamsberg” 7 times.

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[Helge Daempfling]

Hi Augustin,

1. and 2.

the format is the right one for the EnGeoMAP tool. It requires the spectral library to in this format as stated in the tutorial - it is an issue with GDAL (fundamental package) and how it loads data that I don’t know any quick workaround for. If you want to use the spectral library with the EnMAP-Box you will need modify the .hdr file with a text editor and change:

file type = ENVI Standard

to

file type = ENVI Spectral Library

It will be very clearly explained in the upcoming tutorial for the new EnGeoMAP version.

3. I will try to get a georeferenced verision or add the map info myself

Thanks for reporting,

Helge

[Agustin Lobo]

@Helge

Thanks. But I disagree. Any package or tool must conform to standards, and the standard for Envi spectral libraries is having “file type = ENVI Spectral Library” in the hdr, hence you should modify EnGeoMap and not drop the responsibility on the user shoulders to make odd changes in the hdr.

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[Helge Daempfling]

Yes, that is true. The problem is unfortunately with the gdal package and we can't replace gal easily. But I have an idea to solve this. If I find the time I will write a function that will modify the .hdr file on the fly when loading the data and change it back once EnGeoMAP finished calculations.

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[Andreas Rabe]

Yes, that is true. The problem is unfortunately with the gdal package and we can't replace gal easily. But I have an idea to solve this. If I find the time I will write a function that will modify the .hdr file on the fly when loading the data and change it back once EnGeoMAP finished calculations.

Note that @Benjamin Jakimow has already implemented an ENVI SLI reader:

D:\source\QGISPlugIns\enmap-box\enmapbox\qgispluginsupport\qps\speclib\io\envi.py

EnviSpectralLibraryIO.importProfiles(pathToSpeclib)