| 摘要 |
PURPOSE:To attain a correct surface painting by calculating an intersection point between the hatching line of a surface painting and a fan-shaped effective part and an intersection point between the hatching line and fan-shaped split lines, and connecting the intersection points whose errors are corrected at the time of calculating with the hatching line. CONSTITUTION:A fan-shaped intersection calculating part 1 calculates the intersection point between the hatching line and the fan-shaped effective part. An error correcting part 2 corrects the arithmetic error of the intersection point calculated in the fan-shaped intersection calculating part 1. A split intersection calculating part 3 calculates the intersection point between the hatching line and the split line R1 and that between the hatching line and the split line R2. An error correcting part 4 corrects the arithmetic error of the intersection point calculated in the split intersection calculating part 3. A fan-shaped graphic surface painting part 5 paints the surface of the fan-shaped graphic by connecting the prescribed intersection points in accordance with the total number of the intersection points whose errors are corrected in the error correcting parts 2 and 4. |
