> It most cases the popup menu allows you to select any survey leg and jump
> to
> the corresponding 'data, 'map', 'outline' drawing or 'side view' drawing.
> However, when you select a splay shot (un-numbered station) in either of
> the
> drawing views, this feature is not available. If it were, it would be
> very
> useful when trying to decipher the drawings and data table when the disto
> operator has got ahead of the booker.
This is on my list.
Be aware that you can do it the other way round:
The currently selected shot is shown in a different color in the drawings.
This
allows to indentify individual splay shots.
>
> I understand the plan for Therion in future is to use splay shots
> identified
> by '-' for passage wall definition and splay shots identified by '.' for
> internal cave feature definition. It would be nice if PocketTopo
> implemented something similar as well. It would be easier to make this
> distinction as the survey was progressing in the cave, rather than making
> the adjustments back in the office. In addition if the '.' shots were a
> different colour to the survey legs with '-' shots it would ease the
> sketching process (or maybe allow a toggle between showing '-' shots and
> '.'
> shots).
I will think about that.
> Disto Distance
>
> Our distoX occasionally gives one off spurious distance (and rarely
> compass)
> readings. On our most recent trip it went one step further - a ~15m
> survey
> leg gave '3 in a row' readings of 0.21m and some time later (after many
> readings that looked OK) on a similar ~15m survey leg it gave '8 in a row'
> 52.0m readings with the odd 48m and 82m reading thrown in for good
> measure.
> We chose another station and the anomaly disappeared. We are quite sure
> that for the majority of these bogus readings the laser was squarely on
> the
> target. This survey (but not these legs) included a 100m loop, which
> closed
> at 1.25%. This is among the worst we've had with the distoX, but it does
> not suggest any gross distance errors occurred within the loop.
>>did you mean that the distance shown on the disto display was wrong ?
> Unsure, I presume the displayed distance matched the distance transmitted.
> I was driving the pda - I'll check with the distoX operator, as we did
> have
> a brief conversation along those lines when it happened.
>
>>and that the distance transmitted to pockettopo was wrong as well ?
> Yes, definitely the wrong distance - was not a units issue, as the next
> readings were OK (and if I understand correctly 'units' has no effect on
> the
> data transmitted- between them the devices can translate I think).
If the displayed and transmitted distances are the same, it is surely a
problem of the Disto itself, not of the extension.
> does pockettopo save to file the raw data exchanged with the distox ?
No.
They could be read from the DistoX memory (last 4096 measurements).
However, they will be equal to the numbers transferred to PocketTopo.
They are read from the same memory.
> Some 100 distance readings later the lithium AAA batteries died. (The
> indicator suggested the batteries were full at the start, and the survey
> included probably 300 shots).
The indicator is not accurate because the lithium batteries have a higher
nominal voltage and die very rapidly. However, the internal voltage
generated
by the Disto is stable and independent of the actual battery voltage.
> Disto Display
>
> A new distoX, recently acquired and upgraded by a colleague has developed
> some permanently 'lit' pixels (about 20 of them) in the middle of where
> the
> inclination is displayed - even when the device is powered off.
>
> He is a 'distoX & paper' surveyor (and like me has aging eyes) so the
> difficulty in reading the display is particularly frustrating.
>
> Is there a solution to this?
>
> - New display from Leica?
>
> - New circuit board from Leica?
This is most probably a defect of the display itself.
There is a small chance to get a replacement display from Leica.
However, they usually replace the whole device and, because they do not
have any more A3 they offer a D3 instead.
> The total station gives its readings in degrees:minutes:seconds, which
> is fine for therion, but not so good for PocketTopo (or it might be my
> ignorance.)
There is currently no way to enter data in dms.
Of course it may be added...
Regards
Beat
