The invention relates to a method for operating a navigation system
comprising a digital map base, which is a representation of actual
geographical areas and which contains data of geographical elements. The
navigation-system also comprises a unit, which retrieves and processes the
data, such as an operating unit provided with a display device. The data
in the digital map base is combined in the form of geographically defined
page frames. When requesting a page frame from the digital map base, data
of geographical elements which extend beyond the edge of the page frame is
transferred in such a manner that data pertaining to these geographical
elements located outside of the requested page frame is also compiled and
transferred.