An environment assembly and interface for constructing trajectory (1) in the environment, the trajectory construction interface (1) including a mapping (2a) of the environment, the environment including at least one object, wherein the trajectory construction interface (1) includes: a memory (2) in which is stored the mapping (2a)； a system for real-time calculation (6)； a system for determining position of a user (3)； a system for determining real azimuth of the user (4)； a system for indication by haptic stimulation of the position of the at least one object (7), said system for indication of the position of the at least one object (7) being controlled by the system for real-time calculation (6)； and a system for indication by haptic stimulation of the actual azimuth of the at least one object (8), said system for indication of the actual azimuth being controlled by the means of real-time calculation (6).
