A touch panel device includes a display unit, a detector, and a controller. The display unit displays, on a display screen, a nautical chart (map), and a touch panel device symbol indicating a position of the ship on the nautical chart. The detector detects rotating operation that is touch operation of rotating around the touch panel device symbol over a predetermined angle while touching the touch panel device symbol. When the detector detects the rotating operation, the controller switches a display mode to a different display mode in which a reference azimuth defining a displaying orientation of the nautical chart is different.


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    Title :

    Information display device, display mode switching method and display mode switching program


    Contributors:

    Publication date :

    2017-06-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / G09B Unterrichts- oder Vorführungsgeräte , EDUCATIONAL OR DEMONSTRATION APPLIANCES



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