Telemetric measuring method and range finder for measuring distances, lengths, surface areas and levels

The method involves generating or determining two sight lines toward two target points (A, B) unspecified in a space, using a reference source attached to a range finder. An aperture between the lines is validated and stored. Distance to measure an angle is calculated. A spatial distance between the target points is calculated to determine pitching angles (psi) and rolling angles (theta) by applying a rule of sines or a law of cosines to a controller unit. A misalignment (e) of a segment on a horizontal or on a vertical gravity is deduced. An independent claim is also included for a range finder for measuring distances, lengths, surface areas and levels.