Calculation¶

Resection calculation is commonly used when setting up an instrument on an unkown point. Alternatively resection can be used in monitoring setups as well, to handle the possible movement of the instrument between measurement cycles, and to verify the integrity of the control points. The resection calculation will always have excess measurements, which means it can be adjusted with least squares, that provides standard deviations. If the deviations of the resection suddenly increase in one of the cycles, it likely indicates, that one of the control points moved.

The resection is done in two steps, separate horizontal and vertical calculations.

Requirements¶

• Session result file from previous set measurement

Usage¶

iman calc station¶

Calculate station coordinates from set measurements by resection.

The resection is computed in separate horizontal and vertical calculations. Station coordinates and the orientation are displayed once done, as well as their deviations from the adjustment.

iman calc station [OPTIONS] MEASUREMENTS TARGETS OUTPUT

Options

-p, --point <points>¶

Target to use as reference from loaded target definition (set multiple times to use specific points, leave unset to use all)

--height <height>¶

Instrument height

Arguments

MEASUREMENTS¶

Required argument

Input session file to process

TARGETS¶

Required argument

JSON file containing target definitions

OUTPUT¶

Required argument

Output JSON file