[Therion] Fwd: Re: How to calculate the volume of a cave

[Bill Gee]

Ha!  Torsten, you are a magician.  Thanks!

That was indeed exactly how I calculated this.  I had completely forgotten about it.  Fortunately the data file still exists on my Windows virtual machine, and Compass produces the number I need to defend.  I now know how to reproduce the calculation.

Breathing a huge sigh of relief ...

========
Bill Gee


On Friday, January 28, 2022 6:40:00 AM CST Torsten Schnitter wrote:
> Hi Bill
> 
> May be you are looking for this ... !?
> 
> cheers,
> Torsten
> 
> > ---------- Ursprüngliche Nachricht ----------
> > Von: Bill Gee <bgee at campercaver.net>
> > An: therion at speleo.sk
> > Datum: 14.08.2019 23:38
> > Betreff: Re: [Therion] How to calculate the volume of a cave
> > 
> >  
> > Update:  After poking around a bit, I discovered that Compass will calculate cave volume based on centerline and LRUD data.  Doing that means I have to run a Windows computer (ugh!) and type in the survey data twice (double ugh!)  Fortunately the cave for which I need this is small.
> > 
> > Can this feature be added as a suggestion for future versions of Survex?
> > 
> > Compass does quite a few other calculations.  For example, it will calculate the volume of the bounding box.  A sample report is attached.  It is nice that the report is in both meters and feet.
> > 
> > > Hi, I am also interested on volume calculation!
> > > 
> > > Please keep me updated it!
> > > 
> > > > On 11 Aug 2019, at 22:22, Benedikt Hallinger <beni at hallinger.org> wrote:
> > > > 
> > > > It would be awesome if the compiler could derive this fron the loch model and write it to the statistics block (the one where also loop closure info and total west/east and north/south dimwnsions are returned) when compiling this, as the neccessary data should be already present?
> > > > 
> > > >> Am 09.08.2019 um 14:58 schrieb Bill Gee <bgee at campercaver.net>:
> > > >> 
> > > >> Hello everyone - 
> > > >> 
> > > >> What tools can be used to calculate the volume of a cave based on center line and LRUD data?
> > > >> 
> > > >> I found an email from Martin Sluka from about 4 years ago describing how to use Loch to export a .lox file in other formats, then run that file through CloudCompare or ParaView.  The process looks very complex to me, and besides - Loch does not run on my computers, so there is no way for me to generate an export.
> > > >> 
> > > >> As far as I can tell, Survex does not have a way to calculate volume.
> > > >> 
> > > >> Could it be done with a KML file and Google Earth?
> > > >> 
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