| 摘要 |
PROBLEM TO BE SOLVED: To make a Bezier curve faithfully reflect a characteristic which a user desire to express, when drawing the Bezier curve. SOLUTION: When drawing a Bezier curve passing anchor points a, b, c inputted by the user, a straight line L1 formed by rotating a straight line ab with the anchor point b as a fulcrum and a straight line L2 formed by rotating a straight line bc with an anchor point B as a fulcrum are found. Thereafter, a control point Cb1 and a control point Cb2 are found on the respective straight lines. COPYRIGHT: (C)2005,JPO&NCIPI |
