Spectra Precision Survey Pro v4.5 Ranger User Manual - Manual (Page 165)

Other Conventional Surveying Tutorials
155
Curve and Offset
The Curve and Offset screen allows you to design a curve and stake it
in the field. You can stake the curve’s centerline or an offset to the
curve at any specified station interval.
Define Your Curve
1. Tap Stakeout , Curve and Offset from the
Main Menu.
2. If you have not yet setup your backsight,
tap the Backsight… button and set it up.
3. Specify the point that you will use for the
PC of your curve in the PC Point field.
Tip: You can use the power button, to select
a point from your map.
4. Define the direction of the tangent azimuth at the PC of your
curve by selecting PC Tangent Azm or PC Tangent Brg and
enter the appropriate value in this field.
5. Define the size of the curve by selecting Radius, Degree Arc,
or Degree Chord and enter the appropriate value in this field.
Note: Since the length of the curve is not required, you can
potentially stake a 360º curve.
6. Select the radio button that defines if the curve turns toward the
Left
or Right as you view the curve from the PC.
7. Enter the station that you want to assign to the PC in the Station
to Stake
field.
8. Tap Next> to continue.