| 摘要 |
PROBLEM TO BE SOLVED: To reduce a data capacity for a contour when decreasing the number of control points on the contour and to improve accuracy in contour generation when increasing the number of control points on the contour by increasing or decreasing the number of control points at one part of the selected contour. SOLUTION: The contour is selected by a mouse (S206), a parameter changed by a CPU is read (S207) and based on preprocessing data corresponding to the contour selected by the mouse (S206), the contour and the control points are generated (S208) while using the parameter read by the CPU (S207). Therefore, when decreasing the number of control points on the contour, the data capacity for the contour can be reduced and when increasing the number of control points on the contour, the accuracy in the contour generation can be improved. Further, the positions of control points on the contour are changed so that the accuracy in the contour generation can be improved. |
