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

[Stacho Mudrak]

Hi Xavier,

could you please try latest snapshot? This bug should be fixed.

S.

On Wed, 9 Sep 2020 at 22:34, Bruce Mutton <bruce at tomo.co.nz> wrote:

> I forgot to point out that most of my projects probably have multiple
> fixed stations with uncertainty parameters set.  I don't think I have
> experienced any problems, at least in recent times and with recent versions
> of Therion.
> So your example is interesting.
> Bruce
>
> -----Original Message-----
> From: Therion <therion-bounces at speleo.sk> On Behalf Of Xavier Pennec
> Sent: Thursday, 10 September 2020 00:20
> To: therion at speleo.sk
> Subject: Re: [Therion] Bug with uncertainty on fixed station on windows 10?
>
> Many thanks Bruce for the confirmation of the crash on a different machine.
> It may may not be just linked to my environment, then.
>
> What is strange is that with more fixed with uncertainty, it sometimes
> works or crashes depending on which fixed stations are commented out.
> I could not find a regular pattern to characterize more the problem so far.
>
> Xavier
>
> PS: My try with Therion 5.3.15 that compiles also indicates that is does
> not find Cavern (which is also from a recent survex version). This is why
> it opts for the therion loop-closure algorithm which apparently still
> exhibits the bug "fixed point std error causes extreme survey network
> distortion" that we discussed in 2013.
>
>
>
> Le 09/09/2020 à 11:15, Bruce Mutton a écrit :
> > Xavier
> > I don't have any insights, but can confirm on my Windows 10 machine,
> your files compile fine with 5.3.14, 5.3.15, 5.3.16 but crash as you
> describe with 5.4.1 and with recent 153d718 snapshot.  I did not check to
> see whether the output looked sensible or not.
> > I notice that my older versions report not finding Cavern, which is
> installed, but is from a recent Survex 1.2.43, so that could explain it.
> > Bruce
> >
> > -----Original Message-----
> > From: Therion <therion-bounces at speleo.sk> On Behalf Of Xavier Pennec
> > Sent: Wednesday, 9 September 2020 09:18
> > To: 'List for Therion users' <therion at speleo.sk>
> > Subject: [Therion] Bug with uncertainty on fixed station on windows 10?
> >
> > 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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