Spectra Precision Survey Pro v4.9 - Manual (Page 165)

spiral from the Start Point) when the L is selected or on the right when R is selected.
Note: An offset of zero would result in the spiral curve itself being staked.
[V. Offset]: will result in the elevations for the design points to be adjusted by the value entered here and will change
the cut / fill values accordingly. Design elevations will be lower when is selected, and higher when U is selected.
[Grade]: specifies a slope from the spiral curve to the curve that is being staked. When this is a non-zero value, the
elevation for the staked points will increasingly differ from the corresponding design elevations on the spiral curve as
the Offset value increases.
Height of rod: is the length of the rod.
[Backsight…]: opens the Station Setup screen.
[< Back]: returns to the previous screen.
[Solve>]: opens the third screen, described next.
Note: A motorized total station will automatically turn toward the design point after pressing [Solve>] depending on
the configuration of the
Stakeout Settings screen.
Stake Spiral and Offset - Screen 3
Station: displays the current station that is being staked.
H. Offset: displays the offset distance of the spiral curve being staked from the specified spiral curve and if it is on the
Right or Left side of the specified spiral curve.
Angle Right: is the horizontal angle that the total station must aim toward so that it is facing the current station.
Horz Dist: is the horizontal distance from the occupy point to the current station.
Vert Dist: is the vertical distance from the occupy point to the current station.
ZE to Rod: is the zenith angle that the total station must aim toward so that it is facing the current station.
[Circle Zero]: is used to modify the circle on the total station so that the angle right reading will be zero when it is
facing toward the design point, which can sometimes be easier than turning to an obscure angle value. When this
button is tapped, the following actions will occur:
1. A new backsight circle value is computed, sent to the instrument and stored in the raw data
2. The Angle Right value is changed to zero to reflect the change. The instrument now needs to be turned
horizontally to zero to face the design point.
3. To prevent errors, the backsight set up is invalidated when exiting the Stakeout dialog if this button has been
used. A circle zeroed on a design point is meaningless once the design point has been staked.
Note: The [Circle Zero] button is not available when using a robotic total station.
[< Back]: returns to the previous screen.
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