18 results about "Horizontal angle" patented technology

In geography, a horizontal angle is the measure of an angle between two lines originating from the same point. In topographical applications, a horizontal angle is often calculated between two lines of sight. ... An angle of 90 degrees would be a right angle, which is formed by two perpendicular lines. If an individual took the horizontal angle of his line of sight when looking straight north and straight east, this would measure 90 degrees.