95
⑦
The system returns to resection
main menu. The screen displays the
PT just measured If the coordinate
is unknown, system will request
user to input the coordinates and
then return to resection main menu.
⑧
Click [Add] again, repeat steps
②
～
⑥
to finish measuring and
recording other resection points.
※
1)
[Add]
⑨
In case 3 angle measurements or
2 angle and distance measurements
have
been
performed,
the
coordinates of the occupied point
can be displayed by pressing
[Coord]. Click [Enter].
※
2)
※
1
）
On the lower side of the screen discrepancies (e1) or the standard deviation in N, E, Z direction
(sN, sE, sZ) of the occupied point will be displayed. Discrepancies will be shown in case two distance
measurements have been performed. They are calculated using the following equations.
e1 = HD12 (Calculated using measurements) – HD12 (Calculated using known coordinates)
HD12 denotes the horizontal distance between the first and second point.
※
2) If the distance of more than three points or angles of more than four points have been measured;
the standard deviation will be displayed instead of discrepancies. The number of residuals shown
depends on the parameters selected. Generally, the worst observation will have the largest residual. This
observation can be deleted by placing the bar on this observation using the arrow key and then press
[DEL]. The observation is removed from the list. The coordinates of the occupied point, its standard
deviation or discrepancies and the residuals of the remaining observations are automatically
recomputed.
By clicking [Para.], the parameters which are calculated during resection can be
selected. The following screen will be shown.
