Patent ID: 7847922

Claim:
A method for capturing three-dimensional data of an area of space, comprising: providing a laser scanner comprising a transmitter and a receiver, sending out a plurality of measuring beams (Ls) by means of the transmitter to a plurality of measuring points in the area of space, receiving a plurality of reflected beams (Lr) which are reflected by the measuring points, and determining a plurality of distances to the plurality of measuring points as a function of the reflected beams (Lr), wherein the area of space comprises at least one object which contains a hidden channel having a visible entry opening, a rod-shaped element being inserted into the channel in such a manner that a free end protrudes from the entry opening, a first distance to a first measuring point at the free end and at least one second distance to a second measuring point at the free end being determined, and an orientation of the hidden channel being determined as a function of the first and second distance.