Spectra-precision Survey Pro v3.80 Recon iPAQ Reference Manual Bedienungsanleitung Seite 195

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Seitenansicht 194
Curve Menu
R-189
Compute Radius Point
The Compute Radius Point screen is used to compute and optionally
store the radius point for a curve when certain parts of the curve are
known.
PC Point
: is the point that defines the beginning of the
curve (Point of Curvature).
PT Point
: is the point that defines the end of the curve
(Point of Tangency).
Turn
: specifies if the curve turns to the
Left
or
Right
as
you face the curve from the PC.
Arc
: specifies if the arc is
Small
(less than 180°) or
Large
(greater than 180°).
The final part of the curve is defined by one of the
following choices:
: is the distance from the radius point to
the curve.
: is the deflection angle.
: is the deflection angle that results in a 100-ft.
arc length.
: is the deflection angle that results in a 100-ft.
chord length.
Store RP
: When checked, the computed radius point will be stored
with the name specified here.
: computes the location of the radius point.
: accesses the Curve Layout
screen (Page R-191).
: accesses the Traverse On Curve
screen (Page R-196).
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