Map display device, a memory medium and a map display method
AssigneeAisin Aw Co., Ltd.
InventorsKunihiro Yamada, Takanori Kaji, Yumi Shibata, Hiroyoshi Masuda
Life of this patent
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Abstract
A map display device using an input unit for inputting a display scale, a memory for storing polygon map data, a drawing processing control unit for drawing a polygon map by loading polygon map data from the memory and a display unit for displaying an output from the drawing processing control unit, wherein the drawing processing control unit is provided with a function for determining a unit of a polygon map that should be drawn and drawing a polygon map of the determined unit.
Claims17
A map display device, comprising:
- memory means for storing polygon map data;
- drawing processing control means for drawing a polygon map by reading the polygon map data from the memory means;
- and
- display means for displaying an output from the drawing processing control means, wherein the drawing processing control means is equipped with a function for determining a unit of a polygon map that should be drawn and draws a polygon map of the determined unit to distinguish between a plurality of unit levels.
A computer readable memory medium, wherein the computer readable memory medium stores therein a polygon map database, and programs for determining a unit of a polygon map that should be drawn and drawing a polygon map of the determined unit to distinguish between a plurality of unit levels.
A method for displaying a map, comprising:
- storing polygon map data;
- and
- displaying a polygon map by reading the stored polygon map data, determining a unit of a polygon map that should be displayed and displaying a polygon map of the determined unit to distinguish between a plurality of unit levels.
Dependencies are inferred from the claim text.