Re: [Therion] Loop closure algorithms
On Wed, Jul 19, 2017 at 10:30:19PM +, Saeid Bostandoust via Therion wrote: > On Thursday, July 20, 2017 2:47 AM, Wookey via Therion > wrote: > > Installing or not-installing survex switches the algorithm. Not sure > > if there is a way of forcing one or the other algorithm without doing that.. You can specify in therion.ini with: loop-closure therion or: loop-closure survex "By default, survex is used if present, otherwise therion." > is it better to install survex and using survex loop closure algorithm > or not? While I'm probably biased, the fact that the default is to use survex if it's installed indicates that therion's authors think it's the better choice. There's also a third way (which is what I do), which is have your data in .svx format, and just point therion at an already-processed .3d file with "import example.3d": https://therion.speleo.sk/samples.doc/40.html Cheers, Olly ___ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therion
Re: [Therion] Loop closure algorithms
Thanks wookey, is it better to install survex and using survex loop closure algorithm or not? On Thursday, July 20, 2017 2:47 AM, Wookey via Therion wrote: On 2017-07-19 18:56 +, Saeid Bostandoust via Therion wrote: > Hi, what is loop closure algorithm(s) used in therion core? If survex is installed therion uses the survex loop closure algorithm. If not it uses its own which is somewhat less sophisticated. > Can some body explain an algorithm for me? The survex process is mostly documented here (in some very old docs, but nothing much has changed in the core algorithm): http://csg.bcra.org.uk/surveynotes.html More details on how instument standard deviations are specified and used is given in the survex manual. Not sure if the therion algorithm is documented in detail. > If these are more than one algorithms used in therion, how can i choose and > change default loop closure algorithm? Installing or not-installing survex switches the algorithm. Not sure if there is a way of forcing one or the other algorithm without doing that.. Wookey -- Principal hats: Linaro, Debian, Wookware, ARM http://wookware.org/___ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therion ___ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therion
Re: [Therion] Loop closure algorithms
On 2017-07-19 18:56 +, Saeid Bostandoust via Therion wrote: > Hi, what is loop closure algorithm(s) used in therion core? If survex is installed therion uses the survex loop closure algorithm. If not it uses its own which is somewhat less sophisticated. > Can some body explain an algorithm for me? The survex process is mostly documented here (in some very old docs, but nothing much has changed in the core algorithm): http://csg.bcra.org.uk/surveynotes.html More details on how instument standard deviations are specified and used is given in the survex manual. Not sure if the therion algorithm is documented in detail. > If these are more than one algorithms used in therion, how can i choose and > change default loop closure algorithm? Installing or not-installing survex switches the algorithm. Not sure if there is a way of forcing one or the other algorithm without doing that.. Wookey -- Principal hats: Linaro, Debian, Wookware, ARM http://wookware.org/ signature.asc Description: Digital signature ___ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therion
[Therion] Loop closure algorithms
Hi, what is loop closure algorithm(s) used in therion core?Can some body explain an algorithm for me?If these are more than one algorithms used in therion, how can i choose and change default loop closure algorithm?Thanks, Saeid. ___ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therion
