97
E.g.:
1) If p1, p2, p3 and OccPt fall on the circle, the result can not be computed.
2) If the point is near the circle then the result is unstable.
3) Residuals are useful to avoid that observations of low quality will be used for the
resection computation. However, in case of a small number of observations or a bad
geometrical constellation of the points it is possible that one bad observation
influences several residuals.
4) The unit of residuals is similar to the unit of the measurements performed. However
the residuals of horizontal angle and vertical angle are always displayed in decimals.
E.g.: 3°49′50″shows as 3.4950
5) The message „Occupied point coordinate is not computed ‟ is shown if the
calculated scale is not within 0.9
～
1.1.
6) More than one measurement to the same point can be performed during resection. In
that case the character „*‟ is placed behind the point number. The average of the
measurements to same point is used for the calculations.
7) The following table shows which residuals will be shown.
△
H: The residual of horizontal angle.
△
V: The residual of vertical angle
△
SD: The residual of slope distance.
NOTE: The residuals which will be shown depend on the measuring mode and
whether elevation is calculated.
Calc. Elevation
：
ON Calc. Elevation
：
OFF
Meas Mode
：
H/V/SD
△
H
，
△
V
，
△
SD
△
H
Meas Mode
：
H/V
△
H
，
△
V
△
H
11.1.2 Elevation of Occupied Point
If the elevation of a point to be occupied is not known but a point of known elevation
can be observed, then the station elevation can be computed.
Example
：
OPERATIONAL STEPS
KEY
DISPLAY
①
In [Occ. & BS Set] main menu,
click [Elevation].
※
1)
[Elevation]
