| 摘要 |
PROBLEM TO BE SOLVED: To provide a display method of a digital map capable of displaying corresponding elements on a plurality of digital maps by correlating them even when a digital map in a different coordinate system and a digital map with distortion and errors are included. SOLUTION: The display method of the digital map consists of a stage of store a digital map data base including digital map data of a plurality of kinds of digital maps comprising many factors 50 with which the same attribute code is correlated in the corresponding elements 50 in a digital map system, a stage to prompt specification of the elements 50 correlation display of which is desired in any one of the digital maps 50 to be included in the digital map data base, and a stage to select the elements corresponding to the specified element 50 from the digital map data of other digital maps 50 to be displayed in parallel based on the attribute code and to display the specified elements by correlating them with the corresponding elements.
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