| 摘要 |
PURPOSE:To draw the effective line of a continuously moving track graphic by providing plural holding means, changing the color or density of the graphic and effective graphic to be respectively held and repeatedly drawing the graphic. CONSTITUTION:The original graphic and effective graphic, which is correspondent to the original graphic and composed of the feature point of the graphic, are prepared in advance. The graphic to be picture data is stored to an image memory IMEM 10 and held in a bit-developed form. The effective drawing, which is composed of the feature point of the graphic in correspondence to the graphic, is temporarily stored to a RAM 8. The IMEM 10 and a ROM 8 form the first and second holding means. Based on the data, a main controller MPU 6 executes the drawing according to a continuously moving track graphic drawing program which is stored in a ROM 7. At such a time, when the density or color is changed for the original graphic and effective graphic, the both graphics can be distinguished. Thus, the effective line of the continuously moving track graphic can be drawn. |
