Leica Geosystems TPS1100 Professional Series - Reference Manual - Manual (Page 142)

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TPS1100 - Appl. Prog. Ref. Manual 2.2.0en COGO
COGO
The function "Offsets" consists of
the following subfunctions:
• "Distance point straight line"
Calculates the difference in length/
abscissa and the lateral deviation/
ordinate with reference to a basis
line emanating from a known point.
• "Orthogonal point calculation"
A new point can be calculated
which emanates from a basis line
using the difference in length/
abscissa and the lateral deviation/
ordinate.
The "Point Arc" routine computes a
radius point given any three points.
The point coordinates can either:
• be determined by measurement,
• entered manually using a keyboard
or
• read from the memory card.
Introduction
This manual describes the "COGO"
program of the TPS1100
Professional Series.
The following provides a general
overview of the individual COGO
functions.
The "Inverse" routine computes the
direction and distance between two
points.
The "Traverse" routine computes a
new coordinate point given a
direction and distance from a known
point (Polar stakeout).
The "Intersections" routine
computes:
• Bearing-Bearing intersections,
• Bearing-Distance intersections,
• Distance-Distance intersections or
• Intersection by Points
Data, both measured and read from
the memory card, can be mixed. This
means, however, that station
coordinates and orientation have to
be correctly set.
Directions and distances can be
entered manually, called up or freshly
determined. The values can then be
amended by means of multiplication,
division, addition and subtraction.
The program "Stakeout" can be
called up directly from the individual
result dialog boxes (if available) in
order to set out the points
immediately.
The program "Stakeout" assumes
that the instrument is set and
oriented to a known point.