On Mon, Dec 27, 2021 at 05:04:20PM -0600, Bill Gee wrote:
> My question about significant digits is really related to how much
> precision can and should be carried through a calculation. If compass
> readings are taken to four significant digits, then the mean of two
> such numbers is really only
Hi Olly -
Many thanks for the answers. I think I will give BACKTAPE a try the next time
I do some survey, if only to see what happens.
My question about significant digits is really related to how much precision
can and should be carried through a calculation. If compass readings are taken
t
On Sun, Dec 26, 2021 at 08:00:49AM +, Ben Cooper wrote:
> What does Survex actually do for all these loops?
It deal with any backsights up front and just adds a single link to the
network for each survey leg.
It's harder to properly account for partial backsights if we created a
separate link
On Sat, Dec 25, 2021 at 08:50:26AM -0600, Bill Gee wrote:
> 1) Does Therion also recognize the BACKTAPE data type?
It seems not - there's no match in the source code repo for:
git grep -i BACKTAPE
> 2) What does Survex do if both TAPE and BACKTAPE are given? Does it
> average the two readings?
On 27/12/2021 19:41, Tarquin Wilton-Jones via Therion wrote:
But because DistoX is an electronic device it is only way to be sure it
works properly. The same as check, if three (four) readings for
surveying leg with rotation around the longitudinal axe of DistoX are in
tolerance interval.
Oh v
On 27/12/2021 19:15, Martin Sluka via Therion wrote:
>
>
>> 26. 12. 2021 v 19:32, Tarquin Wilton-Jones via Therion
>> mailto:therion@speleo.sk>>:
>>
>> However, for Disto
>> surveying, it feels largely unnecessary, as the accuracy is already a
>> lot more than most surveys need when just using fo
Ben's comment about backshots being a form of loop is interesting. I had not
though of it that way, but he is right!
I do not use electronic sketching in a cave. All the data from the DistoX2
goes on paper just like Suunto/tape data. I have looked at Qave and TopoDroid,
and for now I think t
> 26. 12. 2021 v 19:32, Tarquin Wilton-Jones via Therion :
>
> However, for Disto
> surveying, it feels largely unnecessary, as the accuracy is already a
> lot more than most surveys need when just using forward sightings.
But because DistoX is an electronic device it is only way to be sure it
