Spectra-precision Survey Pro v4.5 Recon and Nomad Reference Manual Uživatelský manuál Strana 314

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Survey Pro Reference Manual
R-306
Stake Spiral and Offset
Stakeout Spiral and Offset.
The Stake Spiral and Offset screen allows you to stake stations at
fixed intervals on a spiral curve, or at an offset to it.
Start Point: is the point associated with the beginning of
the spiral curve. This can either be the TS or the CS,
which is specified later in this screen (see below).
Tangent Azm | Tangent Bearing : defines the tangent
azimuth or bearing at the entrance to the spiral
Radius | Degree Arc | Degree Chord : defines the
radius, degree arc, or degree chord of the curve,
respectively.
Length: is the length of the spiral curve.
Begin Station: is the station associated with the Start
Point.
Turn: defines if the curve turns toward the Left or Right
from the point of view of the Start Point.
Spiral: defines the direction of the spiral curve by the following
options:
TS to SC: the spiral begins at the tangent (Tangent to Spiral)
and ends at the circular curve (Spiral to Curve).
CS to ST: the spiral begins at the circular curve (Curve to
Spiral) and ends at the tangent (Spiral to Tangent).
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