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PROVISION ON APPLICATION OF A SEA CARD, PROCEDURE FOR APPLICATION OF A SEA CARD AND PROGRAMME FOR APPLICATION OF A SEA CARD
PROVISION ON APPLICATION OF A SEA CARD, PROCEDURE FOR APPLICATION OF A SEA CARD AND PROGRAMME FOR APPLICATION OF A SEA CARD
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机译:申请海卡,申请海卡的程序和应用海卡的程序
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摘要
The purpose is to provide a nautical chart display device which enables a measurement of a distance in a method easily understandable even for a user who is not used to a measurement of a distance by a touch operation. The nautical chart display device 20 includes a display unit 21, a touch operation identifying module 52, a tool identifying module 53, and a tool displaying module 54. The display unit 21 displays a nautical chart on a screen. The touch operation identifying module 52 identifies a touch operation to the screen. The tool identifying module 53 identifies a position and an orientation of a ruler placed on the screen. The tool displaying module 54 displays distance markers according to a scale of the nautical chart on the screen at the position where the ruler is placed, based on the position and the orientation identified by the tool identifying module 53.
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