A map display device, a memory medium and a map display method

摘要

A map display device comprises input means for inputting a display scale, memory means for storing polygon map data, drawing processing control means for drawing a polygon map by reading the polygon map data from said memory means and display means for displaying an output from said drawing processing control means. 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.