Snap2stamps package: a free tool to automate the SNAP-StaMPS Workflow

Microwave Toolbox StaMPS
#618

did you remove any of the products created in previous steps?

#619

I just deleted the zip files of the images because there was not enough space.

#620

thant should be fine actually.

Have you checked if the url of SRTM3Sec has changed accordingly after the latest update and of there are corrupted zip files in the aux directoy (both explained in the link above). I know the export should not require SRTM data at all, but this has caused lots of trouble lately. Problem in the last part of snap to stamps

#621

I want to start with stamps in matlab, Do I have to set the Insar_processor to Snap to run the Stamps step (1,8)? or gamma?

#622

if you prepared the data in SNAP you set it to ā€˜snapā€™

#623

ok.thanks , I set it to ā€˜snapā€™ then run stamps(1,1), see this error, What is the cause?

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#624

Hello,
(Ubuntu 20.04, python-3.8)
Iā€™m trying to run ā€œsplitting_slaves.pyā€ but it seems there is an error with the subprocess.Popen() function. It just doesnā€™t wait for the processes to finish, I mean it gives me the following output:
ā€¦[13] Finished process in 2.7949752807617188 seconds.
Split slave [ā€™/app/Documents/snap2stamps/SAR/PROC/slaves/20201226/S1A_IW_SLC__1SDV_20201226T154045_20201226T154112_035859_0432DC_4619.zipā€™] successfully completed.
But the split folder is empty. So I tried running the command manually from the command line:
~/snap/bin/gpt /ā€¦/snap2stamps/SAR/PROC/graphs/splitgraph2run.xml -c 5G -q 6
This time, it behaved differently - it downloaded the Orbit file and produced *.data and *.dim in the right split folder. It took more than 2.79 secondsā€¦

So I thought, maybe if I download all the orbit files beforehand it would not have problem with the downloading part. Running the python script again didnā€™t change anything. Forthemore, running the command manually again still caused it to download the orbit file again.

So, my questions are:

  1. Why does the python script not working? it seems this was not an issue before.
  2. Why does the gpt downloading the orbit file by default? What to do if I would want to use it on a stand-alone station?
  3. not related to this issue - I saw that other people populated the MASTER= line in project.conf to point to a *.dim file. How can you do that if you donā€™t have that dim file at the beggining of the process?? You start from zip files, donā€™t you?

Thank you very much,
Oded

#625

hi ABraun,
Can you tell me what is the cause of this error When I run stumps(1,1), and how should I fix it? please
Index in position 2 exceeds array bounds.

Error in ps_load_initial_gamma (line 108)
rg=rgn+ij(:,3)*rps;

Error in stamps (line 263)
ps_load_initial_gamma;

#626

have you seen this?

#627

I downloaded this script and put it in matlab folder on Stamps software,then run the stamps(1,1) step, but this error is still and do not fixed it.:confused:

#628

Do you get the same error message?

#629

Have you seen this?

#630

I a not sure python 3.8 subprocess function runs in the same way that for 2.7 for which the original script was conceived.

Could you please verify it?

#631

Thank you for your reply.
As I saw in https://stackabuse.com/pythons-os-and-subprocess-popen-commands/, the subprocess function is suiteable for python3ā€¦
I might be wrong though.

#632

It might work, but maybe differently.
I cannot say moreā€¦ please check or just use python 2.7. Then it should work as expected.

Let me know

#633

Yes it is exactly the same.

#634

Yes, I have seen it. but this error is still and do not fixed for me.

#635

are you sure that you have replaced the existing matlab script by the downloaded one? Also restarting MATLAB afterwards might make a difference.

#636

Yes, I replaced the same script that was downloaded. even after restarting MATLAB I get the same error massage.

#637

Hi,

So in python2.7 it works without any problem.

Oded

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