Spectra Precision Survey Pro CE v3.6 User Manual - Manual (Page 292)

Stakeout Menu
R-135
Stake Spiral and Offset
6WDNHRXW 6SLUDO DQG 2IIVHW 
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).
7DQJHQW $]P | 7DQJHQW %HDULQJ : defines the
tangent azimuth or bearing at the entrance to
the spiral
5DGLXV | 'HJUHH $UF | 'HJUHH &KRUG : 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).