Using Two Bearings; Using Two Distances - Leica Captivate Technical Reference Manual

Using two bearings

Using two distances

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The distance and the bearing from the known point to the hidden point are to
be determined. An auxiliary point helps compute the bearing which might not
be known. The auxiliary point can be determined in the direction from the
known point to the hidden point.
Diagram
d
P1
P0
GS_063
Description
Two points must be known. They
can exist in the job.
•
can be manually measured during the hidden point measurements.
•
• can be manually typed in.
The bearings from the known points to the hidden point are to be determined.
Auxiliary points help compute the bearings which might not be known. Auxiliary
points can be measured in the direction from the known points to the hidden
point.
Diagram
P3
P4
P1
P0
GS_064
Description
Two points must be known. They
• can exist in the job.
can be manually measured during the hidden point measurements.
•
• can be manually typed in.
Known
P0 Known point
To be measured
d Distance from P0 to P2
α Bearing from P0 to P2
P1 Auxiliary point, optional
Unknown
P2 Hidden point
Known
P0 First known point
P3 Second known point
To be measured
α1 Bearing from P0 to P2
P2
α2 Bearing from P3 to P2
P1 First auxiliary point, optional
P4 Second auxiliary point,
optional
Unknown
P2 Hidden point
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