I've got a multi loop traverse that I am using SurvNet to adjust. I keep running into a wall specifying the loop closures. It keeps telling me that I am starting and ending on different points. I've tried different combinations of starting setup points and ending point to no avail. What's the trick to this thing?
Tried it once before using starnet. If I remember you have to end in on the same point as you have started with.
Mark Indzeris, post: 392876, member: 1019 wrote: I've got a multi loop traverse that I am using SurvNet to adjust. I keep running into a wall specifying the loop closures. It keeps telling me that I am starting and ending on different points. I've tried different combinations of starting setup points and ending point to no avail. What's the trick to this thing?
Not exactly a fix, but a way to quickly get your answer. Create a dummy point at the end. Say you are closing on 51; make it 951. Manually get distance and elevation from 51 to 951 and there is your closure. Change 951 back to 51 and off you go. Done.
For a 5 sta. traverse w/ CW angles, 1st occupation on sta 2, BS 1, last occupation on 1 closing to 2, my "Ordered Traverse Point list" in the .cls file is:
2-5,1-3
I always start on 2, BS 1 - just because.
Mark Indzeris, post: 392876, member: 1019 wrote: I've got a multi loop traverse that I am using SurvNet to adjust. I keep running into a wall specifying the loop closures. It keeps telling me that I am starting and ending on different points. I've tried different combinations of starting setup points and ending point to no avail. What's the trick to this thing?
The rule to creating a closure file is as follows: The first point is your first backsight point, the second point is your first occupied point, the second to last point is your last occupied point and the last point is your last foresight. So if you have a LOOP traverse with 4 points, say 1 through 4, and you start on point 2 backsighting point 1, your point sequence would be 1,2,3,4,1,2. You started on 2 backsighting 1 and you ended on 1 foresighting 2.
If the closure is Point-to-Point, your first two points MUST be control points and the point/s you tie into must also be control.
Thanks fellas. I'll give that a try when I'm back in the office. How about multiple loop closures? I've got a main exterior loop and then a couple of internal cross closures. Will survnet detect the ties because of the same point numbers? Or should I handle this with the loop closures?
