Electronic map display system
First Claim
1. A method of displaying an object on an electronic map, the method providing the steps of:
- providing a storage unit including a first storage portion and a second storage portion, where the first storage portion includes type definition data for a plurality of object types, the type definition data defining a graphical representation of an object type in terms of at least one basic geometrical shape, and where the second storage portion includes object data for a plurality of objects, the object data for an object comprising object type data specifying an object type of the object and object position data specifying an object position of the object;
retrieving object data including object type data and object position data of an object to be displayed from the second storage portion;
retrieving type definition data of the object to be displayed from the first storage portion based on the object type data of the object to be displayed; and
generating a graphical representation of the object to be displayed by generating a graphical representation of the at least one basic geometrical shape defined by the type definition data at a position on the electronic map determined based on the object position data.
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0 Petitions
Accused Products
Abstract
A navigation system is provided that includes a storage unit, a processing unit, and an optical output unit. The storage unit includes a first storage portion for storing type definition data for a plurality of object types, the type definition data defining a graphical representation of an object type in terms of at least one basic geometrical shape. A second storage portion includes object data for a plurality of objects, the object data for an object comprising object type data specifying an object type of the object and object position data specifying an object position of the object. To display an object having a specific object type, the processing unit reads the type definition data of the corresponding object type from the first storage portion and generates graphical representations of the basic geometrical shapes that constitute the object type on the optical output unit.
14 Citations
28 Claims
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1. A method of displaying an object on an electronic map, the method providing the steps of:
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providing a storage unit including a first storage portion and a second storage portion, where the first storage portion includes type definition data for a plurality of object types, the type definition data defining a graphical representation of an object type in terms of at least one basic geometrical shape, and where the second storage portion includes object data for a plurality of objects, the object data for an object comprising object type data specifying an object type of the object and object position data specifying an object position of the object; retrieving object data including object type data and object position data of an object to be displayed from the second storage portion; retrieving type definition data of the object to be displayed from the first storage portion based on the object type data of the object to be displayed; and generating a graphical representation of the object to be displayed by generating a graphical representation of the at least one basic geometrical shape defined by the type definition data at a position on the electronic map determined based on the object position data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 19)
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14. A navigation system comprising:
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an optical output unit; a processing unit; a storage unit having a first storage portion and a second storage portion; the first storage portion including type definition data for a plurality of object types, the type definition data defining a graphical representation of an object type in terms of at least one basic geometrical shape; the second storage portion including object data for a plurality of objects, the object data for an object comprising object type data specifying an object type of the object and object position data specifying an object position of the object; the processing unit is coupled to the storage unit to retrieve object data including object type data and object position data of an object to be displayed from the second storage portion and type definition data of the object to be displayed from the first storage portion, based on the object type data of the object to be displayed; and where the processing unit controls the optical output unit so that a graphical representation of the at least one basic geometrical shape defined by the type definition data is generated at a position on the optical output unit defined by the object position data. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
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15. A storage unit storing a plurality of objects to be displayed on an electronic map, the storage unit comprising:
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a first storage portion that includes type definition data for a plurality of object types, the type definition data defining a graphical representation of an object type in terms of at least one basic geometrical shape; and a second storage portion that includes object data for a plurality of objects, the object data for an object comprising object type data specifying an object type of the object and object position data specifying an object position of the object. - View Dependent Claims (16, 17, 18)
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Specification