| 摘要 |
Definition of pairs of faces having the possibility of being in mutual contact among a plurality of objects is performed accurately and efficiently. A contact definition device comprises a shape data acquisition portion, which acquires data relating to the surface shapes of a plurality of objects; a positional relation information acquisition portion, which acquires positional relation information relating to prescribed positional relations among the plurality of objects; a vector information acquisition portion, which acquires information related to a normal vector in an arbitrary region at the outer surface of an arbitrary object, among the plurality of objects, directed outward from the object; and, a contact definition portion which defines, based on the data relating to surface shapes, positional relation information and information relating to normal vectors, a region closest to the arbitrary region among the regions of the outer surfaces of other objects having normal vectors in substantially the opposite direction of the normal vector positioned in the direction of the normal vector in the arbitrary region of the outer surface of the arbitrary object in the above prescribed positional relations, as a region which can be in contact with the arbitrary region.
|
