Field Option Description
Arc length Display only Computed length of arc.
Easting and
No
rthing
Display only The calculated coordinates.
Height Display only The height of the calculated point.
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changes to the 3D viewer page.
38.5 COGO Calculation - Traverse Method
Elements that must be known are
•
the c
o
ordinates of one point.
•
the direction from the known point to the COGO point.
•
the distance from the known point to the COGO point.
•
offsets, if necessary and configured.
The coordinates of the known point
•
can be tak
en from the job.
•
can be manually measured during the COGO calculation.
•
can be entered.
The direction from the known point to the COGO point can be an azimuth or
an angle.
P
oints with full coordinate triplets and position only points can be used. Posi-
tion o
nly is calculated, height can be typed in.
A COGO traverse calculation can be calculated for
•
a single p
oint.
•
multiple points. Several single points are calculated in one sequence.
•
sideshots.
COGO traverse calculation with offset for a single point
Known
P0 Known point
α
Direc
tion from P0 to P1
d1 Distance between P0 and P1
d2 Positive offset to the right
d3 Negative offset to the left
Unknown
P1 COGO point without offset
P2 COGO point with positive off-
set
P3 COGO point with negative off-
set
Description
Diagram
COGO 477
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