| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a golf ball 2 having a high occupation ratio, and excellent aerodynamic symmetry. <P>SOLUTION: The golf ball 2 has a large number of craters 8. A rugged pattern is formed on the golf ball 2 by the craters 8. A process for designing the rugged pattern includes the steps of: assuming a plurality of states; assuming a large number of cells on a spherical surface; assigning any one of the plurality of states to each cell; assigning, as an attribute, any one of INSIDE, OUTSIDE and BOUNDARY to the each cell based on the state of the each cell and states of a plurality of cells located adjacent to the each cell; assuming craters based on the attributes of the large number of cells; and updating the attribute of the each cell so as to enlarge the areas of the craters, based on the attribute of the each cell and the attributes of the plurality of cells located adjacent to the each cell. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
