Differentiating splay measures in Aven

Luc Le Blanc speleoluc at gmail.com
Fri Feb 7 20:25:31 GMT 2020


It works!

I kept the -n suffix for splays to walls and .n for splays to random
details and aliased - as ..

Thanks!

Le ven. 7 févr. 2020 à 14:11, Olly Betts <olly at survex.com> a écrit :
>
> On Fri, Feb 07, 2020 at 01:52:31PM +0000, Wookey wrote:
> > On 2020-02-07 08:43 -0500, Luc Le Blanc wrote:
> > > Does the SVX format allow differentiating splay measures that reach
> > > cave walls from those aimed at random details (block, stalactite,
> > > etc,)?
> >
> > Yes. there are three labels:
> >
> > Documented here: https://survex.com/docs/manual/datafile.htm
> > 'Anonymous stations'
> >
> > Single separator ('.' by default)
> >     An anonymous non-wall point at the end of an implicit splay.
> >
> > Double separator ('..' by default)
> >     An anoymous wall point at the end of an implicit splay.
>
> Oops, that should be "anonymous" - I've just pushed a fix.
>
> > > In my code exporting from Auriga to Survex, I see a line where splay
> > > measures to cave walls use a hyphen separator while those to details
> > > use a dot for the virtual station name suffix, but this line being
> > > commented, I must guess someone suggested this trick but it wouldn't
> > > be implemented in Survex.
> >
> > The hyphen is used by pocket topo, so is quite common in datasets
> > taken that way.
> >
> > Survex provides an alias command so you don't have to change them all:
> >
> > You can map '-' to '..' (for compatibility with data from pocket topo)
> > using the command:
> > *alias station - ..
>
> I'm not clear on what exactly you currently export (with the line above
> commented), but note that '-' is a valid station name in Survex, so if
> your anonymous splays to walls use '-' but you don't '*alias station -
> ..' then all your anonymous splays in a survey will actually be legs to
> the same station named '-' in that survey, which could explain:
>
> > > an Auriga user tells me his caves renders oddly in Aven
>
> If that isn't the problem then an example .svx file would be useful.
>
> Cheers,
>     Olly
>
> --
> Survex https://lists.survex.com/mailman/listinfo/survex



-- 
Luc Le Blanc
http://www.speleo.qc.ca/Auriga



More information about the Survex mailing list