Resection
On the Survey tab, in the Resection group:
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Click Mean Observations to calculate the angles between the fixed points (from each set of readings, where there are multiple horizontal observations to each target) and then average them.
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Click Vertical to calculate the coordinates (East and North) of the occupied point. If more than 3 known points are observed, there is no unique solution, and an adjustment is required.
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Click Horizontal to calculate the Z coordinate of the occupied point. Because the East and North values of the occupied station are expected to be in the Station file, running the Horizontal resection function is a pre-requisite.
