| 摘要 |
<p>PROBLEM TO BE SOLVED: To increase a plotting speed of a mobile object dynamically displayed according to a logical time even when a great many data are handled. SOLUTION: A mobile object simulation program 11 refers to display judgment data 12 at regular intervals, and when the presence or absence information on a picture display is 'presence' and a logical time is between a picture display start time and a picture display end time, the program accesses simulation data 31 and displays the mobile-object based on the display coordinates and the display time, and when the logical time is not between the picture display start time and the picture display end time, the displayed mobile object is deleted and the presence or absence information on the picture display is made to absence. When the presence or absence information on the picture display and the logical time is between the display start time and the display end time, the program accesses the simulation data 31 and displays the mobile object based on the display coordinates and the display time, and the presence or absence information on picture display is made to 'presence'.</p> |
