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Yes, the n,s,e,w params for l2gen are more convenient than grabbing the output of lonlat2pixline. I am almost done fixing the bug. Expect the fix in the next release.

Thanks again for finding this.

don

OK, looks like the n,s,e,w params for l2gen processing VIIRS has a nasty bug in it. Here is what I suggest for your processing stream. - run lonlat2pixline with the GEO file and n,s,e,w to get start/end, line/pixel for region of interest - run l2gen with L1A and GEO file and start/end, line/pixel pa...

I can reproduce the seg fault on my Linux machine. Seems to work fine on my mac, but that is how these memory issues usually behave. There is an easy work around that you can put into your processing stream. l2gen works fine if you use an L1B file as the ifile instead of an L1A. Using the example fi...

The best way to solve this is to write a GOCI-II reader for l2gen. Currently, we do not have plans to write one. We do supply the source code, so others can contribute. Here is what I see as the major issues for you: - l2gen is written in C/C++, so it is easiest to write the reader in C++. - l2gen d...

Can you give me the exact command lines you are using to go from V2016258230600.L1A_SNPP.nc to the subsetted files that makes l2gen crash? I will try to reproduce the crash here.

don

Both getanc and l2gen work fine for me with that file. What OCSSW tag did you install? I would first try to download the VIIRS file again since l2gen could not figure what type the file is.

don

The best answer I have for the moment is at the end of this thread.

viewtopic.php?f=7&t=2524&p=8964&sid=113 ... 100b#p8964

The easiest way to compile our code is to not build the VIIRS L1 hooks. cd ocssw/ocssw_src rm -rf build mkdir build cd build cmake .. -DBUILD_VIIRS_L1=0 make -j 10 install When I get the time, I will make a few tar files for different OSs. The problem is that we are not allowed to distribute the VII...

Zhigang, Yes, it looks like you have uncovered a bug in l2gen when using the north, south, east, west options. The bug was introduced after V2021.1 and T2020.7. I have fixed the bug and you can try the new code by installing test tag T2021.11 or revert to V2021.1 Thanks for pointing out the bug. It ...

Yes, it looks like the context manager support was added in version requests 2.18.0. We will get the requirements updated

Thank You

don