| 摘要 |
<p>PURPOSE: To allow a user to freely decide the shape and movement of a polygon in a three-dimensional space by moving a cursor displayed on a monitor screen through the assembly of a stylus and a touch tablet on a desired pin, and selecting a corner pin. CONSTITUTION: Once a shape 6 of a new polygon is decided, an operation processor 11 calculates the characteristics of the three-dimensional movement of an original rectangle 5. When it is projected on a second-dimensional viewing screen, it is visualized as a newly decided polygon 6. The same conversion is operated also to a video frame to be converted. An operated frame is introduced to a second or background picture frame, and a first picture frame which is originally an square is introduced to the window of the above mentioned picture frame, and indicated by a perspective. As a result, the connection of the first and second video sequences of the frame can be attained without any noticeable artifact.</p> |
