Network adjustment workflow
Hello,
I have made measurments in local triangulation network. Horizontal angles and horizontal distances.
Did you really measure the azimuths with a total station? Normally, that’s not possible, and only (unoriented) directions are observed.
If i have 7 points, and lets say point 1 has known coordinates (0,0). Do I define that point as Datum point or Reference point, and the rest of the points as New points?
If you have only a single point, the necessary condition for the data definition is not satisfied. You need at least a second point or a true azimuth - see my question above. Assuming you have an azimuth, it doesn't matter whether the single known point is a reference point or a datum point.
How can I define Azimuth from point 1 to point 2 to be lets say (120°)?
Import the measurement as a set of directions and uncheck the checkbox to avoid estimating the unknown orientation of the set.
Is it possible to input Face 1, Face 2 measurments in several rounds to spot outliers? Or am i forced to use average observations option before computing approximate coordinates and running the adjustment?
JAG3D supports both faces. However, since the measurement of a single face is systematically distorted by measurement errors, it is strongly recommended that you use the average of the measurements from face 1 and face 2. To compute approximate coordinates it is nessessarry, that the first direction to a point relates always to face 1.
Is there and option to enter degree values in D-M-S format instead of decimal degrees?
No.
All the best
Micha
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applied-geodesy.org - OpenSource Least-Squares Adjustment Software for Geodetic Sciences