Device having touch panel, radar apparatus, plotter apparatus, ship network system, viewpoint changing method and viewpoint changing program
AssigneeFuruno Electric Co., Ltd.
InventorTatsuya Asahara
Life of this patent
Estimating the term…
Abstract
A touch panel device displays a nautical chart as map data on a display screen. The touch panel device detects a first touch operation on the display screen and a second touch operation 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. The touch panel device obtains a rotational axis parallel to the sea surface based on the position of the first touch operation, and rotates a viewpoint of the map data centering on the 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.
Claims14
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.
A viewpoint changing method, comprising:
- displaying map data on a display screen;
- detecting a first touch operation from an operator on a 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;
- obtaining the position of the first touch operation where an altitude above a sea surface on the map data is 0 m;
- obtaining a first rotational axis perpendicular to the sea surface that intersects the position of the first touch operation;
- obtaining a rotational axis parallel to the sea surface that intersects the position of the first touch operation;
- and
- simultaneously rotating 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 rotating the viewpoint centering on the first rotational axis.
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 and a second touch operation from the operator on the touch panel on the display screen;
- and
- a controller configured to:
- obtain a 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 first rotational axis based on a rotate amount of the second touch operation with respect to the position of the first touch operation, and rotate the viewpoint centering on the second rotational axis based on a change amount of a distance from the position of the first touch operation to a position of the second touch operation.
Dependencies are inferred from the claim text.