Spectra Precision Survey Pro CE v3.6 User Manual - Manual (Page 342)

Curve Menu
R-185
Line Tangent to Circle
&XUYH 7DQJHQW WR &LUFOH
Will compute the location of a line that is tangent to the specified
sides of two specified circles.
Tangent Line : determines which sides of the
circles the computed line will be tangent to as
you occupy the
1st Radius Point and face the
2nd Radius Point . (See illustration below.)
1st / 2nd Radius Pt : defines the points around
which the circles are computed.
Radius : defines the radius of the circles that
are used to compute the Tangent Line .
;
Store Tan Pt : When checked, will store the
computed tangent points.
6ROYH : computes the location of the tangent line and optionally
stores the two tangent points.
Results
TP 1 : displays the coordinates for the first
tangent point.
TP 2 : displays the coordinates for the second
tangent point.
Azimuth : is the azimuth of the tangent line from
the first tangent point to the second.
Distance : is the length of the tangent line.
1st Radius Pt.
1st
Tangent
Point
2nd
Tangent
Point
2nd Radius Pt.
Radius 1
Radius 2
Tangent Line
Line Tangent to Circles solution illustrating
the location of a
Left-Left Tangent Line.