Process and apparatus for annotating electronic map data
First Claim
1. A method for annotating an electronic background map, the background map being associated with projection parameters and geodesic parameters, and display references being associated with a display of at least part of the background map, the method comprising:
- acquiring at least one annotation, the at least one annotation being displayed on the background map;
transforming the at least one annotation to at least one object including at least one point having geometric coordinates defined in the display system of the at least one annotation and of the background map; and
converting the geometric coordinates of the at least one point of the at least one object to geographic coordinates according to the projection parameters and the geodesic parameters associated with the background map and according to the display references.
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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.
6 Citations
18 Claims
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1. A method for annotating an electronic background map, the background map being associated with projection parameters and geodesic parameters, and display references being associated with a display of at least part of the background map, the method comprising:
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acquiring at least one annotation, the at least one annotation being displayed on the background map; transforming the at least one annotation to at least one object including at least one point having geometric coordinates defined in the display system of the at least one annotation and of the background map; and converting the geometric coordinates of the at least one point of the at least one object to geographic coordinates according to the projection parameters and the geodesic parameters associated with the background map and according to the display references. - View Dependent Claims (2, 3, 4, 5, 11)
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6. A device for annotating an electronic background map, the background map being associated with projection parameters and geodesic parameters, and display references being associated with a display of at least part of the background map, the device, comprising:
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means for acquiring at least one annotation; means for displaying the at least one annotation and at least part of the background map; means for transforming the at least one annotation to at least one object including at least one point having geometric coordinates defined in the display system of the display means; and means for converting the geometric coordinates of the at least one point of the at least one object to geographic coordinates according to the projection parameters and the geodesic parameters associated with the background map and according to the display references. - View Dependent Claims (7, 8, 9, 10, 12)
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13. A device for annotating an electronic background map, the background map being associated with projection parameters and geodesic parameters, and display references being associated with a display of at least part of the background map, the device comprising:
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an interface configured to acquire at least one annotation; a display configured to display the at least one annotation and at least part of the background map; and a processor configured to transform the at least one annotation to at least one object including at least one point having geometric coordinates defined in the display system of the display, and convert the geometric coordinates of the at least one point of the at least one object to geographic coordinates according to the projection parameters and the geodesic parameters associated with the background map and according to the display references. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification