Spectra-precision Survey Pro v4.5 Recon and Nomad Reference Manual Manual do Utilizador Página 381

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Curve Menu
R-373
Three Point Curve
Curve 3 Point Curve.
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.
Solve : will compute the curve based on the selected points.
Traverse : accesses the Traverse on Curve screen (Page R-382),
where the curve can be included in a traverse.
Layout : accesses the Curve Layout screen (Page R-375), where the
location of points on a curve can be computed at any station interval.
Results:
Radius: is the distance from the radius point to the curve.
Length: is the arc length.
Chord: is the chord length.
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