Method and system for scrolling a map display in a navigation ap

Details Method and system for scrolling a map display in a navigation ap Method and system for scrolling a map display in a navigation ap

1998-06-05

2000-12-19

Nguyen, Tan

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

701212, 340995, G08G 1123, G09G 532

Patent

active

061637491

ABSTRACT:
A system and method for implementing a smooth scrolling function in a map display tool used with a navigation system and a map database. The system includes a map processing layer in the map display tool having a multi-tasking abstraction layer and a synchronization object for allowing portability between different platforms. The method includes the steps of updating a display from a first graphics buffer while executing a look-ahead process in the background and filling a second graphics buffer with map information on a predicted future position.

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