> So I can replicate the effect for both the scenarios you describe using my > usual 'loop-closure survex' in therion.ini. > If I switch to 'loop-closure therion' then both scenarios give co-incident > stations 1a and 1b, which I believe is what you are after.
Oh! That's weird. Survex calculates it correctly when I use it in a Survex file with separate begin/end sections, so I don't think the bug is there (but maybe Therion puts it into a certain structure that confuses Survex). Perhaps Olli or Wookey might have some insight into why Therion gets it wrong when using Survex for loop closure... > So all these years I've been using the 'better' survex loop closure to avoid > one bug, and inadvertently falling for another! It's a shame the switch is in the ini configuration, rather than something I can control in the survey or centreline level. Then I could fix this bug without having to resort to using Therion loop closure elsewhere. And unfortunately, it looks like Therion loop closure bugs are likely to hit the survey because of how I am (correctly) using standard deviation on both the fixed stations and legs between them. Don't suppose you can magic up some other workaround to the issue, or should I pester people and hope someone can fix it? I will put it on the issues list tomorrow anyway, just in case (unless Olli or Wookey jump in and say it is a Survex bug). _______________________________________________ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therion
