This is a hard one to describe, but I'll do my best:
I wanted to add some shots from a new point inter visible between two control points.
I set up and back sighted to the first of the two, and got the "no coordinates found; we'll create coordinates based on the back sight yada yada" warning in SurvCE. And sure enough, when I tried bringing the .rw5 using Star*Carlson converter, I got an abort, with a no OC record.
Sure enough, there was none. Here's some of the .rw5:
--Set Collection with Obs Order 123...321...
LS,HI4.9300,HR5.6500
BK,OP2200,BP31,BS75.1125,BC0.0000
LS,HI4.9300,HR5.6500
BD,OP2200,FP31,AR0.0000,ZE104.0152,SD296.561000,--
I guess I never realized that SurvCE never created a new point...there was none in the data file.
So, braving the unknown (I've never used resection in SurvCE "for real"), so tried it, using the 3 control points, two of which are the same I want new observations to. It worked; the point was created; then I proceeded to make my observations to the same points, making sure to "store RAW data".
Here's part of the .dat file converted:
# C 2200 427156.00360 1617891.60890 1234.02510
# Job : 14-2200-7
# Date : 08-20-2016
# Time : 15:32:11
DB 2200 '
DM 7 0-00-00.00 337.2560 81-29-51.00 4.930/4.500 '
DM 14 180-40-49.00 296.5610 104-01-25.00 4.930/5.650 'Manually entered
DM 1700 0-25-18.00 67.9800 84-32-10.00 4.930/0.950 '
DE
DB 2200 '
DM 7 180-00-04.00 337.2530 278-30-14.00 4.930/4.500 '
DM 14 0-40-29.00 296.5590 255-58-55.00 4.930/5.650 'Manually entered
DM 1700 180-25-10.00 67.9790 275-28-04.00 4.930/0.950 '
DE
.Delta Off
DV 2200-14 296.5595 104-01-13.50 4.930/5.650 'Manually entered
M 2200-14-7 179-19-29.00 337.2550 81-29-49.00 4.930/4.500
Two questions:
1. Where's the resection data in the file? The last two lines?
2. As long as "Store Raw data" is selected in SurvCE, is it acceptable to use two or more points for the resection, then turn around and immediately record new observations to those same points?
ps: I never did experience the problem Dmyhill was talking about unless this was exactly it.
I don't use survce but I use survey pro.
I resect a ton. Never to run new control but definitely if I need to set up in between and gather some shots or locate a fast foundation.
If I'm not too sure about the control, like if my control points are old, then I'll do my resection and then shoot the points again after to store them so I can adjust later on the computer if necessary
I believe SurvCE stores the resection observations as note records, so when you convert to a StarNet dat file, you may lose that information. You may have to edit the .rw5 file to change those note records to observations before you convert to the .dat format.
Peter Lothian - MA ME, post: 387706, member: 4512 wrote: I believe SurvCE stores the resection observations as note records, so when you convert to a StarNet dat file, you may lose that information. You may have to edit the .rw5 file to change those note records to observations before you convert to the .dat format.
Thank you for the follow up.
I think that's exactly what it did, and I'm fine with it. I don't really care where the point is; I just want the data to each of the two other control points.
At first I didn't understand why SurvCE wouldn't have just written the coordinates for the new point based on the back sight and distance, but thinking about it more, I realize that if you're always setting your back sight angle to zero (which I do), then every such point would be 180 from it...not too useful. It takes resection to two or more points to define the new point.
At any rate, the important thing is that Starnet uses the subsequent observations, not the resection observations.
