Hi Anna, all Good point! Thanks for raising this!
Seems we are all trying to better understand band references and how they integrate with existing functionality :) In https://github.com/OSGeo/grass/pull/1844/ we discuss temporal framework and band references. Indeed, we have a problem if all examples using Landsat will stop working in grass 8, so if this is the case, then we might need a new version of the sample data which by the way might also include the MODIS LST mapset (~10 Mb) to do some time series stuff. In my opinion, band reference should be something optional, no? On the other hand, I think I understood from Maris that with r.support we could add band references and that the restrictions were relaxed but these changes are not yet documented. There's this thread: https://lists.osgeo.org/pipermail/grass-dev/2021-September/095377.html Band references need some further discussion IMHO my 2 cents Vero El mié, 8 sept 2021 a las 20:56, Anna Petrášová (<kratocha...@gmail.com>) escribió: > Hi devs, > > given the changes with bands (which I still don't fully understand) do we > need to have a new sample dataset, in which the landsat scenes have bands? > Context: I was playing with basic classification examples (g.gui.iclass, > i.gensigset) and apparently it doesn't work and it's giving me error: > > Raster map <lsat7_2002_80@PERMANENT> lacks band reference > > So my questions are: > > 1. Is that expected behavior? Seems little strict to me. > 2. If yes, then what do I do when working with other data than Landsat, > Sentinel, etc - g.bands doesn't currently support user-defined references. > 3. Also, if yes, do we need a sample dataset for GRASS8 then? Otherwise > any examples with landsat fail. > > Sorry if I misunderstood anything. > > Thanks, > Anna > _______________________________________________ > grass-dev mailing list > grass-dev@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/grass-dev >
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