| 摘要 |
PROBLEM TO BE SOLVED: To provide a system for eliminating the troublesome work of opening a camera setting window or the like and easily and comfortably setting various display parameters for three-dimensional display images such as a scale, an altitude rate and a line-of-sight direction. SOLUTION: A map display window 11 displaying a three-dimensional map image 19 is provided with a scale slider bar 17 and an altitude rate slider bar 15. A user sets the scale by operating the scale slider bar 17 and sets the altitude rate (strength degree of height) by operating the altitude rate slider bar 15. Also, the user sets the line-of-sight direction (view point of camera) by putting a cursor inside the window 11, displaying a hand-shaped cursor 21 and dragging and operating the cursor by the left button of a mouse. Further, the user scrolls the map display window 11 by changing the hand-shaped cursor 21 to a scroll cursor by clicking a right button and dragging and operating the cursor by the right button. |
