Re: [Therion] Breaking a loop at a specific station on extended elevation

>> Extend in Therion is the same as the way PocketTopo implements >> 'flip' (equivalent to Therion's 'extend'). More precisely equivalent to Therion's 'extend reverse'. And my experience is that it is very confusing having it 'pivot on the station previous' in a graphical interface (PocketTopo

Re: [Therion] Breaking a loop at a specific station on extended elevation

> Pretty sure this is the way it is. Which is why I tend to use extend > rather than with a single . Yes, I think this might be something I will end up relying on, because it is much more readable, and understandable. And on top of that, you know that even if Therion gets changed to follow Surv

Re: [Therion] Breaking a loop at a specific station on extended elevation

Tarquin, our messages crossed... > At least in my head, "extend vertical 3" feels like it should mean > "everything from station 3 onwards". I think Bruce also expected this, given > what he wrote in the wiki "extend" article: https://therion.speleo.sk/wiki/extend "Usually this option will not w

Re: [Therion] Breaking a loop at a specific station on extended elevation

On 20/12/2019 20:58, Tarquin Wilton-Jones via Therion wrote: >> If extend algorithm follows stations in order 1 - 2 - 3 - 4 - 5 - 6 - 7 >> - 8 - 9 and you specify >> extend vertical 3 >> extend right 8 >> Then stations 3,4,5,6,7 should be placed vertical and 8,9 on the right. >> I have tested it an

Re: [Therion] Breaking a loop at a specific station on extended elevation

>but now I am wondering ... if they are supposed to take place for "the leg >that reaches this station, and every leg after it". ... o_O Pretty sure this is the way it is. Which is why I tend to use extend rather than with a single . It is more easily understood six months later when you try

Re: [Therion] Breaking a loop at a specific station on extended elevation

> If extend algorithm follows stations in order 1 - 2 - 3 - 4 - 5 - 6 - 7 > - 8 - 9 and you specify > extend vertical 3 > extend right 8 > Then stations 3,4,5,6,7 should be placed vertical and 8,9 on the right. > I have tested it and in my example, it works like this. In the case of what you said,

Re: [Therion] Breaking a loop at a specific station on extended elevation

Hi Tarquin, I am afraid, I do not understand your problem. If extend algorithm follows stations in order 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 and you specify extend vertical 3 extend right 8 Then stations 3,4,5,6,7 should be placed vertical and 8,9 on the right. I have tested it and in my example, i

Re: [Therion] Breaking a loop at a specific station on extended elevation

Stacho, I am wondering if there is a fault in all the other "extend" options, rather than this problem being specific to "extend ignore". extend vertical 3 # everything after station *2* is vertical extend right 8 # everything after station *7* is extended to the right It seems like your "extend

[Therion] Breaking a loop at a specific station on extended elevation

exactly what is going on, so that I can then make good decisions. Cheers Bruce -Original Message- From: Therion On Behalf Of Tarquin Wilton-Jones via Therion Sent: Wednesday, 4 December 2019 08:55 To: therion@speleo.sk Cc: Tarquin Wilton-Jones Subject: Re: [Therion] Breaking a loop at a

Re: [Therion] Breaking a loop at a specific station on extended elevation

> I have added > > log extend > > feature to thconfig. It should log the traversing sequence of extend > algorithm to therion.log file. Brilliant! Thanks Stacho :) I will add it to my wiki article. (And I have no doubt that Bruce will also add it to his.) ___

Re: [Therion] Breaking a loop at a specific station on extended elevation

> into a single station, how do you isolate the particular leg that you > want? A textual debug might help find the answer. > > > > Bruce > > > > > > *From:* Therion *On Behalf Of *Stacho Mudrak > *Sent:* Friday, 15 November 2019 00:09 > *To:* List fo

Re: [Therion] Breaking a loop at a specific station on extended elevation

Thank you! Martin > 2. 12. 2019 v 9:22, Tarquin Wilton-Jones via Therion : > >> This would make an excellent mini topic on the wiki (in the existing >> article on "extend"). > > > I have now added a new article, with details of the investigation: > https://therion.speleo.sk/wiki/breakingextend

Re: [Therion] Breaking a loop at a specific station on extended elevation

> This would make an excellent mini topic on the wiki (in the existing > article on "extend"). I have now added a new article, with details of the investigation: https://therion.speleo.sk/wiki/breakingextend Because it uses a load of images, it was nicer to have it as a separate article, rather

[Therion] Breaking a loop at a specific station on extended elevation

you isolate the particular leg that you want? A textual debug might help find the answer. Bruce From: Therion On Behalf Of Stacho Mudrak Sent: Friday, 15 November 2019 00:09 To: List for Therion users Subject: Re: [Therion] Breaking a loop at a specific station on extended elevation

Re: [Therion] Breaking a loop at a specific station on extended elevation

> Normally,  > > extend ignore 6 > > should do the job. But there was a bug in the code, so it did not work > as intended. Thanks so much for this explanation! Suddenly everything makes sense, once you know that it was unintentional behaviour :) > It should be fixed now in the latest commit.

Re: [Therion] Breaking a loop at a specific station on extended elevation

Normally, extend ignore 6 should do the job. But there was a bug in the code, so it did not work as intended. It should be fixed now in the latest commit. If some of you have more complex entended elevation projects, could you please check, whether this change does not introduce new errors? The

Re: [Therion] Breaking a loop at a specific station on extended elevation

12. 11. 2019 v 19:25, Bruce Mutton : > > While I would welcome Therion improvement in this space, I am a little > concerned about all of my existing extended elevations that might be broken > by changes in behaviour. I'm sure this eventuality can be accommodated by > clever coders however. There

[Therion] Breaking a loop at a specific station on extended elevation

s eventuality can be accommodated by clever coders however. :) Bruce -Original Message- From: Therion On Behalf Of Wookey Sent: Tuesday, 12 November 2019 11:18 To: therion@speleo.sk Subject: Re: [Therion] Breaking a loop at a specific station on extended elevation On 2019-11-12 07:20 +1

Re: [Therion] Breaking a loop at a specific station on extended elevation

On 2019-11-12 07:20 +1300, Bruce Mutton wrote: > I don't have a problem with the characteristic you mention in point 2. I > think it is just semantics associated with the word 'ignore', and sequential > process. If you think 'break' then is it all OK? We think it should be possible to specify

[Therion] Breaking a loop at a specific station on extended elevation

Behalf Of Tarquin Wilton-Jones via Therion Sent: Monday, 11 November 2019 21:42 To: therion@speleo.sk Cc: Tarquin Wilton-Jones Subject: Re: [Therion] Breaking a loop at a specific station on extended elevation Hi Bruce, > Stepping through the process I take; Thanks for that detailed explan

Re: [Therion] Breaking a loop at a specific station on extended elevation

Hi Bruce, > Stepping through the process I take; Thanks for that detailed explanation! The main things that threw me were: 1. That Therion is stepping *backwards* along the oxbow - in the direction of the cave passage from the "start" instead of in the direction that it is surveyed. This means

Re: [Therion] Breaking a loop at a specific station on extended elevation

Hi Tarquin > I don't quite understand why asking it to ignore a leg then changing your > mind and asking it to draw it anyway, would cause it to then split it at the > point you want. I wonder if I will be able to make sense out of that in > future. I think of extended generation as a tr

Re: [Therion] Breaking a loop at a specific station on extended elevation

> 10. 11. 2019 v 12:07, Tarquin Wilton-Jones via Therion : > > This does not work. You are right. It is very strange it break centreline in station 2 and not in station 5 or 6. Martin___ Therion mailing list Therion@speleo.sk https://mailman.speleo

Re: [Therion] Breaking a loop at a specific station on extended elevation

What can I say?! Bruce, that was some black magic. I don't quite understand why asking it to ignore a leg then changing your mind and asking it to draw it anyway, would cause it to then split it at the point you want. I wonder if I will be able to make sense out of that in future. What is makes m

Re: [Therion] Breaking a loop at a specific station on extended elevation

9. 11. 2019 v 20:46, Bruce Mutton :Can someone please tell us the magic formula of extend commands that will produce the desired output?Hi Tarquin,try to change the line in your .th file from:extend ignore 6 5to:extend ignore 5 6There is no leg 6-5 in your data, but there is leg 5

Re: [Therion] Breaking a loop at a specific station on extended elevation

] Breaking a loop at a specific station on extended elevation Hi folks, There are a few of us who are struggling with an extended elevation problem. I have attached a sample data file, which represents the data from a real cave. There is a main passage (stations 1-2-3-4-5-7), and a high level

[Therion] Breaking a loop at a specific station on extended elevation

Hi folks, There are a few of us who are struggling with an extended elevation problem. I have attached a sample data file, which represents the data from a real cave. There is a main passage (stations 1-2-3-4-5-7), and a high level oxbow (stations 2-6-5). Because the oxbow is shorter, Therion def