| 摘要 |
A map screen is displayed in a left half area of a display panel and an real image such as a satellite photograph depicting a surface of an earth and an aerial photograph is displayed in the remaining right half area thereof based on real image data. The real images on different scales (the image as the wide area display and the image as the detailed display) can be displayed in the right half area on the display panel. A default condition of two-screen display is set to display the real image as the wide area display in the right half-area.
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