Inverse
methods
Description
Current
position to
arc
The direction, distance and coordinate differences between a
known point and a given arc can be calculated depending on
the data available. Points with full coordinate triplets, posi-
tion only points and height only points can be used.
Sufficient information must be known to define an arc.
The coordinates of the known points
•
can be taken from the job.
•
can be measured during the COGO calculation.
•
can be entered.
38.4.2
Point to Point and Current Position to Point
GS_001
P0
P1
d
Known
P0 First known point/current
position
P1 Second known point
Unknown
α
Direction from P0 to P1
d
Horizontal distance between
P0 and P1
For all point fields, 3D viewer can be used to select the desired point.
To type in coordinates for a known point, open a selectable list. Press
New
to
create a point.
-----
is displayed for unavailable information, for example
Height difference
cannot be calculated if a position only point is used.
Key
Description
Store
To store the result.
Reverse
To swap the
From
and
To
points around.
Meas app
To measure a point manually for the COGO calculation. Avail-
able when
From
or
To
is highlighted.
Page
To change to another page on this panel.
Diagram
Inverse Point to
Point/
Inverse Pt to Current
Pos,
Inverse page
470
COGO
