Spectra Precision Survey Pro CE v3.6 User Manual - Manual (Page 204)

Job Menu
R-47
Adding a Spiral
Tap the
$UF 6SLUDO tab.
Curve : must be set to Spiral to enter a spiral
curve.
Radius : is the radius of the spiral curve. (The
same radius of the circular curve adjacent to
the spiral.)
Length : is the length of the spiral, measured
along the curve from the TS to the SC.
Turn : specifies if the spiral curve turns to the
Right or Left as you occupy the initial point and
face the end point.
Direction : specifies if the curve runs from where the tangent
intersects with the spiral toward where the spiral intersects with the
curve (
TS->SC ) or if the curve runs from where the curve intersects
with the spiral toward where the spiral intersects with the tangent
(
CS->ST ).
Adding a Vertical Curve
Tap the
3DUDEROLF &XUYH tab.
;
Apply Curve : must be checked to enter a
vertical at curve.
Grade at EVC / BVC is the known grade at
either the end of vertical curve or beginning of
vertical curve. The grade entered here is
determined by the selection made in the Auto-
Compute field.
Auto-Compute : will automatically compute the
grade at the selected point and display it at the
bottom of the screen. The grade at the point
that is not checked here must be specified in the field defined above.