| 摘要 |
PROBLEM TO BE SOLVED: To prevent the generation of cracking at a boundary between adjacent planes by setting the boundary between mutually adjacent planes, in consideration of the boundary of the curved surfaces to interpolate the adjacent planes after plural planes are generated in solid forms. SOLUTION: When the boundary between a first plane and a second plane which are adjacent to each other is set, a division point between the curved surfaces to interpolate the first plane which exist in a boundary part between the first plane and the second plane is detected for the first plane (S301), when the division point between the curved surfaces for interpolating the first plane is detected, the apex corresponding to the division point of the curved surfaces to interpolate the first plane is added to the boundary part of the first plane in the second plane, and the boundary between the first plane and the second plane which are adjacent to each other is set so that the division point between the curved surfaces for interpolating the first plane coincides with the apex added to the second surface (S302). |
