Leica Geosystems GPS System 500 - Technical Reference Manual - Manual (Page 297)

297 11. Applications Technical Reference Manual-4.0.0en
Intersection: Bearing - Distance
This function enables you to calculate
the intersection point(s) of a line and
a circle. The line is defined by a point
and a bearing (azimuth) and the circle
by the centre point and the radius.
Enter the start point 1 of the line or
press NEWOC (F5) to measure a
new point. Enter the Bearing
(Azimuth) and the optional Parallel
Offset. Enter the centre point 2 and
the radius (Distance) of the circle.
Instead of entering the values
manually you may calculate them
from two existing points by pressing
INV (F2).
Press COMP (F1) to start the
computation.
Easting, Northing and Height of the
first intersection point are displayed.
To display the second intersection
point press OTHER (F3).
Enter a Point Id, change the Height if
neccessary and press STORE (F1)
will bring you back to COGO\ Inter-
section.
Alternatively press STAKE (F5) to
switch to the stakeout screen and use
the coordinates directly for stakeout.
Input:
P1 - Start point of first line (E, N, h)
α αα αα
- Bearing (Azimuth)
P2 - Centre point of circle (E, N, h)
r2 - Radius
Output:
P3 - 1. Intersection point (E, N, h)
P4 - 2. Intersection point (E, N, h)