[Therion] Question for lox generating strange spikes at passage end

[Benoit Martinez]

I have sometimes the same problem when the scrap outlines are drawn a bit
far from the last station...

To help to reproduce the problem, I have made some test  :
If you remove the point station -name 22.1 in the scrap, the behavior seems
ok. Why ? Don't know...
If you remove the point station -name 1.3, the behavior is not ok but
different

original data :
[image: image.png]

without point station -name 22.1 :
[image: image.png]

without point station -name 1.3 :
[image: image.png]



*Benoit MARTINEZ - *mz.benoit at gmail.com

Le mar. 14 avr. 2020 à 12:28, Benedikt Hallinger <beni at hallinger.org> a
écrit :

> Hello,
> i fiddled more with the data, but to no avail.
> It seems its something in lochs extrapolation code using misaligned data
> or something...
>
> Is this reproducible at your setup?
>
> > Am 31.03.2020 um 18:26 schrieb Benedikt Hallinger <beni at hallinger.org>:
> >
> > Hello,
> > in a dataset i get a strange behavior regarding the loch model at
> passage ends:
> >
> > At station 1.10 a weird spike is produced in the loch model, that should
> not be there.
> > If one comments out some branch that is not located near 1.10, the
> problem goes away.
> >
> > What causes these spikes?
> >
> > Attached a test set with comented section, thus producing correct ending
> of the tunnel.
> > Also, an image showing the problem (left: wrong spike, right: correct
> result with the branch commented)
> >
> >
> > Thanks alot,
> > Beni
> > <test.tar.gz>
> > <testesult.png>
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