PROCESS AND APPARATUS FOR ANNOTATING ELECTRONIC MAP DATA
First Claim
1. A method for annotating an electronic background map, projection parameters and geodesic parameters being associated with the said background map, display references being associated with the display of at least part of the said background map, this method being characterized in that it comprises the following steps,acquisition (300) of at least one annotation, the said at least one annotation being displayed on the said background map;
- transformation (310) of the said at least one annotation to at least one 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; and
conversion (315) of the said geometric coordinates of the said at least one point of the said at least one object 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.
2 Assignments
0 Petitions
Accused Products
Abstract
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.
-
Citations
10 Claims
-
1. A method for annotating an electronic background map, projection parameters and geodesic parameters being associated with the said background map, display references being associated with the display of at least part of the said background map, this method being characterized in that it comprises the following steps,
acquisition (300) of at least one annotation, the said at least one annotation being displayed on the said background map; -
transformation (310) of the said at least one annotation to at least one 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; and conversion (315) of the said geometric coordinates of the said at least one point of the said at least one object 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. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A device for annotating an electronic background map, projection parameters and geodesic parameters being associated with the said background map, display references being associated with the display of at least part of the said background map, this device being characterized in that it comprises the following means,
means for acquiring (215) at least one annotation; -
means for displaying (210) the said at least one annotation and at least part of the said background map; means for transforming (220) the said at least one annotation to at least one object characterized by at least one point having geometric coordinates defined in the display system of the said display means; and means for converting (220) the said geometric coordinates of the said at least one point of the said at least one object 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. - View Dependent Claims (7, 8, 9, 10)
-
Specification