METHOD AND APPARATUS FOR DISPLAYING REAL TIME NAVIGATIONAL INFORMATION

摘要

A method and apparatus for displaying real time navigational information on a vehicle including an informational database which is loaded and stored on an electronic medium within the vehicle. An intermediate database is created from the informational database and stored on the electronic medium. The contents of the intermediate database are transmitted to a color display unit for continuous real time display to the vehicle's operator based upon a desired reference point. In one embodiment, the intermediate database is created by fusing preselected information from the informational database and projecting the preselected information to correspond to a common graphical coordinate axis. In another embodiment, the intermediate database is created by each intermediate database created by spatially and coordinately culling the informational database to obtain spatial data stored on the electronic medium, filtering the spatial data by the software means to obtain displayable data corresponding to a geographic vicinity of a desired reference point and projecting the displayable data to a mapping system which contains a common graphical coordinate axis based upon the desired reference point.