GRAPHICS ARCHITECTURE FOR CAR NAVIGATION SYSTEM
A car navigation system should provide users with a comfortable operating feeling when scrolling maps and changing scale to find geographic information. Recently, perspective maps which display both detailed current position and wide views simultaneously on the same screen have attracted attention. To realize their functions in shortened development period at low cost, the authors designed graphics software architecture for car navigation systems constructed with the following three layers. 1) Rendering libraries: These libraries replaced the conventional graphics accelerator LSI, and graphics primitives are designed to draw quickly. The rendering libraries can reduce the system cost and provide greater flexibility. 2) Graphics middle layer: This layer is the hardware abstraction layer, which keeps compatibility of the application software, and it has System Programming Interfaces (SPIs). These SPIs are optimized for the car navigation system to improve productivity and performance. 3) Map database oriented graphics layer: These draw several map expressions as plane and perspective views for the apparent map format.
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Supplemental Notes:
- Full conference proceedings available only on CD.
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Corporate Authors:
1100 17th Street, NW, 12th Floor
Washington, DC United States 20036 -
Authors:
- Endo, Y
- Fujiwara, T
- Shojima, H
- Hirano, M
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Conference:
- Intelligent Transportation: Realizing the Future. Abstracts of the Third World Congress on Intelligent Transport Systems
- Location: Orlando, Florida
- Date: 1996-10-14 to 1996-10-18
- Publication Date: 1996
Language
- English
Media Info
- Pagination: n.p.
Subject/Index Terms
- TRT Terms: Architecture; Driving; Geographic information systems; Graphics; Maps; Perspective views; Railroad cars; Software
- Subject Areas: Highways; Vehicles and Equipment; I91: Vehicle Design and Safety;
Filing Info
- Accession Number: 00741776
- Record Type: Publication
- Files: TRIS
- Created Date: Oct 27 1997 12:00AM