| 摘要 |
<p>Control object comprises a first design printed on a first object face that comprises a first collection of geometric forms. It also comprises a second design imprinted on a second face of the object, the second design being printed opposite to the first and aligned with it. The second design comprises geometric shapes corresponding to the first frame. One at least of the geometric designs has sections displaced so that when viewed from the others side the control element has zones of varying density.</p> |
