1. A method for coordinate generation to be implemented using an orientation device that is provided with a sensor, said method comprising the steps of: A) providing at least three reference marks on a target; B) aiming the orientation device at a target point on the target, and operating the orientation device such that the sensor is able to capture an image of the target that contains the reference marks; C) assigning absolute coordinates to the reference marks in the image captured in step B); and D) determining relative coordinates of the target point in a coordinate space of the target with reference to the absolute coordinates of the reference marks assigned in step C).