User-defined azimuth guiding method

The invention provides a user-defined azimuth guiding method. The method comprises the following steps: opening a user-defined azimuth guiding function, picking up an entering path and quitting path on a navigational interface and selecting an azimuth guiding value, wherein users can listen user-defined azimuth voice broadcast when passing through the junction next time. The invention also provides a data format used for storing user-defined azimuth guiding data, a user storage user-defined azimuth guiding value and a specific implementation method using the user-defined azimuth guiding data to carry out azimuth voice broadcasting. The user-defined azimuth guiding data comprises a, the entering path marks, and all entering paths in map data are uniquely encoded by using natural numbers; b, the quitting path marks, and all the quitting paths in the map data are uniquely encoded by using natural numbers; c, the azimuth guiding values which are described as the technical terms (in the Specification), and specific options are supplied by navigation software. The user-defined azimuth guiding method provided by the invention has the advantages that the user can define reasonable azimuth guiding values for azimuth broadcasting and the voice broadcasting accuracy is improved.