17. RESECTION MEASUREMENT
To determine the coordinates of an instrument station by performing multiple
measurements of points whose coordinate values are known is the process of
Resection.
Entry Output
N0,E0,Z0
：
station point coordinates
Ni, Ei, Zi
：
Coordinates of
known point
Hi
：
Observed horizontal
angle
Vi
：
Observed vertical
angle
Di
：
Observed distance
By using from 2 to 10 known points (Coordinates), the total station can calculate an
instrument station position. If more than two points are used in the resection routine, the
coordinates of the instrument station are found using a least squares solution. Therefore
the more known points measured, the higher the calculation precision of the resection
point.
z
The function can be performed also by selecting
“
3.Resection
”
in the Menu Mode.
z
To properly use this function, please enter coordinates in a clock wise position and
measure them in that same manner.
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Summary of Contents for CST202
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