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☞
Hidden point meas-
urement methods
☞
Heights
Coding of hidden
points
☞
Auxiliary points
37.5.2
Bearing & Distance
Apps - The Toolbox
Use of hidden point meas-
urements:
Changing coordinates of a point which has been previously used in hidden
point measurements does not result in the hidden point being recomputed.
A hidden point can be measured by
Bearing and distance
•
Two bearings
•
•
Two distances
Chainage and offset
•
Backwards bearing and distance
•
A hidden point measurement device can be attached to the instrument such
that the measurements are automatically transferred to the instrument.
If configured, heights are taken into account. Refer to "37.5.8 Hidden Point
Measurement Including Heights" for information on configuring height offsets.
Device height and Target height configured in Hidden Point Settings are
applied when the hidden points are computed. Difference in height in Meas-
ure Hidden Point is the value directly from the hidden point measuring
device.
Type
Description
Point coding
Available in Hidden Point Result after the calculation of a
hidden point.
Free coding
Free coding of hidden points is identical to coding of man-
ually measured points.
Quick coding
Not available.
Azimuth is used throughout this chapter. This term should also always be con-
sidered to mean Bearing.
Auxiliary points are used to compute azimuths required for the calculation of
hidden point coordinates. Auxiliary points can be points existing in the job or
they can be manually measured. The point ID template configured for Auxiliary
points in ID Templates is applied.
Hidden Point Methods
Description
One point must be known. It
can exist in the job.
•
can be manually measured during the hidden point measurements.
•
•
can be manually typed in.
For poles surrounded by heavy undergrowth,
where it is not possible to measure the pole
directly without taking time to cut a path
through the undergrowth.
437
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