[Therion] Meaning of cavelength

Bruce bruce at tomo.co.nz
Wed Feb 22 07:59:27 CET 2012


 

>. it seems to me, that what is called `cavelength` in Therion is actually
the length of all centerlines.

Yes

 

>This is for on the one hand a problem with circular shots inside big rooms,
like http://filez.foxel.org/3s3H0d2X361A0K222Z3N 

 

>An other problem are crossroads like
http://filez.foxel.org/1t0C0r2Q011i0g1L0i00 where you can't young the shared
area of two passages twice but must - at least to what I have been thought -
>deduct some part of the centerlines: in the following picture I have marked
the parts being considered cavelength yellow and the centerlines not
counting as part of the cavelength >red
https://img.skitch.com/20120221-jhraj625isy8j1i9naxiki3b76.png

 

I don't get too concerned about this.  Like Torstein I figure that if it is
similar to a length that you have to walk or crawl along to go from one
passage to the next (crossroads), then it is part of the cave length and
generally it is close enough to the centerline length as well.  Where there
are legs that circumambulate big rooms or duplicate passage already
surveyed, then I just add 'flags duplicate' (or maybe sometimes 'flags
splay').  This removes these legs from Therions centerline cavelength
calculation.  If one is concerned about precise lengths then one could
ensure they place a survey station at each transition between what they deem
to be 'duplicate' and 'original' cave passage.

 

Bruce

 

 

 

Image 2012.02.21 21:06:44.png20120221-jhraj625isy8j1i9naxiki3b76.png

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.speleo.sk/pipermail/therion/attachments/20120222/a70a100a/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image003.gif
Type: image/gif
Size: 24153 bytes
Desc: image003.gif
URL: <http://mailman.speleo.sk/pipermail/therion/attachments/20120222/a70a100a/attachment.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image004.gif
Type: image/gif
Size: 20951 bytes
Desc: image004.gif
URL: <http://mailman.speleo.sk/pipermail/therion/attachments/20120222/a70a100a/attachment-0001.gif>


More information about the Therion mailing list