Device having touch panel, radar apparatus, plotter apparatus, ship network system, information display method and information display program

摘要

A touch panel device includes a display unit and a controller. The display unit displays, on a map or a nautical chart, a position acquired from a GNSS sensor and a symbol set on the map or the nautical chart. The controller controls, when an operation of specifying the symbol is detected, an auxiliary tool to appear on a display screen of the display unit, the auxiliary tool for recognizing a touch operation of moving the symbol.