Spectra Precision Survey Pro v3.80 Recon iPAQ Reference Manual - Manual (Page 202)

Survey Pro Reference Manual
R-196
Traverse on Curve
&XUYH 7UDY RQ &XUYH
The Traverse on Curve screen will compute the PT and radius point
for a curve when the tangent azimuth at a PC point is known.
The first known part of the curve is defined by one of the following:
• 5DGLXV : is the distance from the radius point to the
curve.
• 'HOWD : is the deflection angle.
• 'HJUHH $UF : is the deflection angle that results in a
100-ft. arc length.
• 'HJUHH &KRUG : is the deflection angle that results in
a 100-ft. chord length.
The second known part of the curve is defined by one of
the following:
• 'HOWD : is the deflection angle.
• /HQJWK : is the arc length.
• &KRUG : is the chord length.
• 7DQJHQW : is the distance from the PC or PT to the PI.
• 0LG 2UGLQDWH : is the distance between the curve and the chord at
the center of the curve’s length.
• ([WHUQDO : is the minimum distance between the PI and the curve.
3& 3RLQW : is the point that defines the beginning of the curve (Point
of Curvature).
$]LPXWK / %HDULQJ : is the direction of the tangent at the beginning
of the curve.
Turn : specifies if the curve turns to the Left or Right as you face the
curve from the PC.