MAP DATABASE DEVICE, MAP DISPLAYING DEVICE AND RECORDING MEDIUM HAVING AND USING HEIGHT DATA EFFICIENTLY
The map database device according to the present invention is employed to display a bird's eye view map achieved by converting a two-dimensional map into a display format adopting a bird's eye view method. And the map data base device includes: a height data portion in which height data re...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The map database device according to the present invention is employed to display a bird's eye view map achieved by converting a two-dimensional map into a display format adopting a bird's eye view method. And the map data base device includes: a height data portion in which height data respectively corresponding to altitudes of a plurality of areas into which the two-dimensional map is divided are respectively stored in correspondence to the areas. |
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