almost impossible with the visualization according to the invention in another embodiment that is depicted in fig5 another visualization 1 u2033 u2033 is provided which omits a representation of the pipe 2 as such the pipe 2 like the inlet 9 is only illustrated through body axes wherein in particular the pipe 2 is visualized through a longitudinal axis 22 the vehicle 3 including the arm 4 and the tool 5 is included as a body in this very abstract representation in order to obtain clarity for the visualization 1 u2033 u2033 the vehicle 3 and also the tool 5 are defined with respect to their positions respectively through 3 position axes 21 so that the operator directly obtains an impression regarding a position and an orientation of the vehicle 3 and of the tool 5 from the position axis 21 the inlet 9 similar to the longitudinal axis of the pipe 2 is indicated by its longitudinal axis 22 at a location in which the inlet 9 intersects a wall of the tube 2 an intersection point 24 of the tube 2 and the inlet 9 is graphically indicated through an intersection axis 23 this way the operator can orient the tool 5 precisely relative to the inlet 9 it is in particular feasible in a very simple manner in this minimized representation to orient the tool 5 based on its position axes 21 with reference to the longitudinal axis 22 of the inlet 9 based and to successfully impact the liner 7 at this location and to mill it open the visualization 1 u2033 u2033 furthermore has the advantage that its representation requires rather small graphics power of a data processing device in order to represent the vehicle 3 and the pipe 2 virtually on a display.