The subject matter of the present invention is an environment assembly and interface for constructing trajectory (1) in the environment, the trajectory construction interface (1) comprising a mapping (2a) of the environment, the environment comprising at least one object, characterized in that the trajectory construction interface (1) comprises: a memory (2) in which is stored the mapping (2a); a means of real-time calculation (6); a means of determining position of a user (3); a means of determining real azimuth of the user (4); a means of indication by haptic stimulation of the position of the at least one object (7), said means of indication by haptic stimulation of the position of the at least one object (7) being controlled by the means of real-time calculation (6); and a means of indication by haptic stimulation of the actual azimuth of the at least one object (8), said means of indication by haptic stimulation of the actual azimuth of the at least one object (8) being controlled by the means of real-time calculation (6).