Agreed - which makes it all the stranger that the indicated depth on the plan legend is 13m - which includes the surface centerlines. Duncan On 24/03/2017 11:26, Stacho Mudrak via Therion wrote:
Hmm, but it looks to me, that scale is only up to altitude 481m, which is altitude of entrance. No surface centerline taken into account.
S.
On 23 March 2017 at 16:17, Duncan via Therion <therion@speleo.sk <mailto:therion@speleo.sk>> wrote:
Yes the entrance is marked. I've attached the Aven view with entrances highlighted (Therion generated 3D file). Note that the surface legs have been excluded from the Aven presentation.
Entrance was declared as follows: cs OSGB:XX fix 21 XXXXX XXXXX 480 # Tweaked to match Google Earth station 21 "Old Mine" entrance Coordinates blanked out at this time.
Duncan
On 23/03/2017 13:36, Martin Sluka via Therion wrote:
Is there entrance marked?
m.s.
On Mar 23, 2017, at 02:04 PM, Duncan via Therion <therion@speleo.sk> <mailto:therion@speleo.sk> wrote:
We surveyed the surface above an old mine to get a feel for how thin the roof is. See attached Loch screenshot.
Unfortunately, the surface legs are being included in the Depth value displayed on the Plan PDF (see attached). Displayed value is 13m, it should be about 8m. 13m is the maximum vertical extent of all our survey legs.
The centerline data for the surface legs has been flagged as "flags surface". These have been correctly omitted from the cave length, and cave length is updated when the surface flag is commented out. However, the vertical range does not alter when the surface flag is toggled.
I expected cave depth to be the maximum vertical range of the underground data. Hope someone can set me straight :) Duncan
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