input reference point is NOT included in the connectComponent

[MaryemBl]

Hello everyone
I'm working with SNAP to produce Mintpy inputs , I use snaphu to generate connected components, it works fine for some ifgram triplets, but not for the others, the error displayed is:

command line: snaphu -G conncomp.img UnwPhase_ifg_VV_27Oct2020_20Nov2020.snaphu.img 1793(tried 495 also)
error : snaphu v1.4.2
extra data in file UnwPhase_ifg_VV_27Oct2020_20Nov2020.snaphu.img (bad linelength?)

The header file:
ENVI
description = {Unwrapped Phase from complex data - Unit: 1}
samples = 1793
lines = 495
bands = 1
header offset = 0
file type = ENVI Standard
data type = 4
interleave = bsq
byte order = 0
band names = { UnwPhase_ifg_VV_27Oct2020_20Nov2020 }
data gain values = {1.0}
data offset values = {0.0}

Can enyone tell why this happened with this ifgram ?

I tried to apply mintpy for triplets with connected components (snaphu -G command worked on them), another error occured, see log file below. my question is : how to choose a reference point when using connected components?

log.txt.txt
Thank you

[hardreddata]

To your second question and ValueError: input reference point is in masked OUT area defined by maskConnComp.h5! you could disable the masking.

mintpy.reference.maskFile      = no

The alternative is to set the reference point to be a location inside the connected component mask.

Cheers.

[david-ncu2019]

Hello everyone,

I have the same issue, which prevents me from correcting my phase unwrapping errors.

When I ran generate_mask.py inputs/ifgramStack.h5 --nonzero -o maskConnComp.h5, the program produced a mask entirely filled with 0.

I don't know why the algorithm did not correct only the selected interferograms and instead ignored the ones that had been excluded after the step modify_network.