Three Point Curve - Tripod Data Systems SURVEY PRO Reference Manual

Results:
Radius: is the distance from the radius point to the curve.
Delta: is the deflection angle.
Tangent: is the distance from the PC or PT to the PI.

Three Point Curve

&XUYH  3RLQW &XUYH
The Three Point Curve screen will compute the details of a curve
when three points of the curve are specified; the PC, PT and any
other point on the curve; or the PC, PT and radius point.
First point: is the first point from the current job that
defines the curve. The specified point can be either the
PC or the Radius Point by selecting the appropriate radio
button.
Note: The selection made for the first point determines
the available choices in the remaining fields.
Pt. on Curve: is any point that lies on the curve between
the PC and PT.
PC: is the point that defines the beginning of the curve
(Point of Curvature).
PT: is the point that defines the end of the curve (Point of
Tangency).
Store RP: When checked, the radius point will be computed and
stored with the name specified here.
Curve Menu
R-187