| 摘要 |
<p>An information processor that carries out an affine transformation expressed by (1), wherein a matrix (2) that is the product of an affine transformation matrix A by λ (≠ 0) is stored in a memory unit in advance. When coordinates (x, y, z)t are transformed to coordinates (x’, y’, z’)t by affine transformation, A’ and a matrix (t1, t2, t3)t are read from the memory unit, x’ = (a’11&ast;x + a’12&ast;y + a’13&ast;z)/λ + t1; y’ = (a’21&ast;x + a’22&ast;y + a’23&ast;z)/λ + t2; z’ = (a’31&ast;x + a’32&ast;y + a’33&ast;z)/λ + t3; are calculated, and the coordinates (x’, y’, z’)t are determined.</p> |
