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Document Type and Number:
Japanese Patent JP6914582
Kind Code:
PROBLEM TO BE SOLVED: To provide a map display device which improves visibility, and a program.SOLUTION: A map display device 1 providing and displaying map information is configured to display a marine chart, and includes a display screen 100 capable of being input with a variety of input by touching on the screen with a finger. When two points of this display screen 100 are touched with fingers F1, F2, the map display device includes a ruler display function for causing a ruler 10 to indicate a distance between the two touch points which corresponds to a reduced scale at that time. This ruler 10 includes: a line segment 11 equal to the distance between two touch points 12; a distance 13 between the two touch points 12 which are the touch points of the fingers F1, F2 and the two touch points 12; and an auxiliary line 14. The line segment 11 is displayed at a position separated by a predetermined distance from the two touch points 12 and is displayed on the display screen 100 without being shielded by fingers F1, F2, and, as a result, visibility of the map display device 1 can be improved.SELECTED DRAWING: Figure 2

Hirakawa Chiaki
Application Number:
Publication Date:
August 04, 2021
Filing Date:
December 06, 2016
Export Citation:
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Japan Radio Co., Ltd.
International Classes:
Domestic Patent References:
Foreign References:
Other References:
外村 克也,アップル学園 iOSクラブ APPLE SCHOOL,週刊アスキー,日本,株式会社KADOKAWA,2015年 5月19日,第27巻 第1029号,p.98,特に、p.98の「おおよその直線距離をマップで把握する」の項を参照
Attorney, Agent or Firm:
Harushima Shigetokiro

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