> 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
