| 摘要 |
The invention relates to a method and a device for annotating electronic background maps adapted in particular to navigation aid systems for vehicles. Projection parameters and geodesic parameters are associated with the said background map. Display references are associated with the display of at least part of the said background map. After at least one annotation has been acquired, it is displayed on the said background map. The said at least one annotation is then transformed to at least one vectorial object characterized by at least one point having geometric coordinates defined in the display system of the said at least one annotation and of the said background map. The said geometric coordinates of the said at least one point of the said at least one vectorial object are then converted to geographic coordinates according to the said projection parameters and the said geodesic parameters associated with the said background map and according to the said display references.
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