Patent attributes
A surveying instrument comprises a distance measuring module configured to perform a distance measurement of an objects to be measured, an optical axis deflector which is provided on a distance measuring optical axis and enables to two-dimensionally deflect the distance measuring optical axis, an arithmetic control module configured to control a deflecting action of the optical axis deflector and a distance measuring action of the distance measuring module, and a display module configured to display calculation results by the arithmetic control module, and wherein the arithmetic control module is configured to scan at least one plane of the objects to be measured in a predetermined scan pattern in at least one cycle by the optical axis deflector, to calculate parameters of the plane based on a measurement result of point cloud data acquired along a locus of a scan, and to display the calculated parameters on the display module.