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Device having touch panel, radar apparatus, plotter apparatus, ship network system, viewpoint changing method and viewpoint changing program

  • US 9,753,623 B2
  • Filed: 10/03/2011
  • Issued: 09/05/2017
  • Est. Priority Date: 10/03/2011
  • Status: Active Grant
First Claim
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1. A device having a touch panel that is touched by an operator, comprising:

  • a display unit configured to display map data on a display screen;

    a detector configured to detect a first touch operation from the operator on the touch panel on the display screen and a second touch operation from the operator on the touch panel on the display screen, the first touch operation being a touch operation of which a position is fixed, the second touch operation being a touch operation of which a position is changed; and

    a controller configured to;

    obtain the position of the first touch operation where an altitude above a sea surface on the map data is 0 m;

    obtain a first rotational axis perpendicular to the sea surface that intersects the position of the first touch operation;

    obtain a second rotational axis parallel to the sea surface that intersects the position of the first touch operation; and

    simultaneously rotate a viewpoint of the map data centering on the second rotational axis based on a change amount of a distance from the position of the first touch operation to the position of the second touch operation, and rotate the viewpoint centering on the first rotational axis.

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