Kolida KTS-470 R Series, Руководство пользователя

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11.4.1 Offset
Apply the following procedure to a point which can not be measured directly.
Measured data change to raw data directly.
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A radial (forward) offset is along the line of sight, with positive away from the
instrument, and a tangential (right) offset is perpendicular to the line of sight with
positive to the right, as viewed from the instrument. A vertical offset is positive
upwards.
●Offsets may be entered manually if measured by tape, or computed by
measuring a second angle to the required point.
A tangential offset may be computed by recording a second angle to intersect with
the perpendicular offset from the current observation. This method can be used to
obtain an approximate position for the center of an object, for example a tree. Take a
shot to the side of the object. When the offset screen has been selected, sight the center
of the object, and press [Horizon] to read the horizontal angle. A perpendicular offset
from the original line of sight will be computed and entered to the screen.
To compute a vertical offset (remote elevation), make an observation to an accessible
point above or below the point required. When in the offset screen, sight the point
required, and press [Vertical]. The vertical angle will be used to compute the difference
in elevation from the ground to the point above or below. The offset will be written to
the screen. Make the current target height has been entered into the point code screen
before selecting [Offset].