[Therion] Bug with uncertainty on fixed station on windows 10?

[Xavier Pennec]

Dear all,

I have a problem with the last version of therion (after 5.3.15) on 
windows 10 with fixed points endowed with a stddev.  The very short 
example attached is ending with an error on the step "processing survey 
data" without leaving any trace (no log file, even with the -d flag). I 
could just catch the attached screen capture on the fly before it 
crashes. Same thing is happening with Therion 5.4.4, 5.4.2 and 5.4.1 
(5.3.15 does not crashes but provides wrong results probably due to the 
version of survex which is too recent). However, the attached example 
works well on ubuntu with Therion 5.4.1 (with Survex 1.2.33) on a 
friend's computer.

Curiously, every thing works well on my windows 10 if I comment out the 
std dev on the fixed points... But I really need this uncertainty as the 
gps measures along a cliff are very uncertain due to reflections.

Any idea of what is going wrong and how to get around?

Thank you for any clue...

best

Xavier

-- 
> -------------------------
> Xavier Pennec
> Senior Research Scientist / Directeur de recherche
> Asclepios project-team, INRIA Sophia-Antipolis
> 2004 Route des Lucioles, BP93
> F-06902 Sophia-Antipolis Cedex, France
> +33 4 92 38 76 64
> +33 6 78 35 16 90
> https://team.inria.fr/epione/en/
> -------------------------------

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encoding  utf-8
source Test.th
# source Test_workaround_fuzzy_fix
export model   -o Test.3d
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encoding  utf-8
survey Test -title "Test"

  centerline
    date 2020.09.06 
    team "Xavier Pennec"
  
   
    ## survey 
    units length meters
    units compass clino degrees 
    data normal from to length compass clino
    grade BCRA5
    1 2 46 155 -14

    
    cs UTM32
    fix GPS-1 300002 4800320 156   5  5 15 # Mean over 2h, 10 sat with diff. Adjusted FOM 2m.
    fix GPS-2 300018 4800278 145  10 10 30 # Mean over 1h40, 6 to 8 sat no diff. Adjusted FOM 4m. 

    equate GPS-1 1 # this bugs if uncertainty is uncommented in fix above
    equate GPS-2 2 # this bugs if uncertainty is uncommented in fix above
    
    
  endcenterline
endsurvey

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