| 摘要 |
For the layout of a page, text and image blocks with data for positioning them on the page are supplied to the data processing system. The image blocks contain pattern information and the text blocks character codes. The pattern information for the characters is stored in a typefont buffer. For editing the data to be recorded, a so-called "window storage" (5) is provided, whose lines (W1-W7) are cyclically associated with successive dot pattern lines (P1, P2, P3 . . . ) on the page (4). For this purpose, the window storage (5), figuratively speaking, successively assumes different window positions (I, II, III) from top to bottom on the page. The height of the window storage (5) is chosen so that it is suitable for accommodating on the page a character with maximum ascender and descender heights. This ensures that the pattern information of a character is transferred to the window storage (5) at one go (in continuous periods). The edit sequence in the window storage (5) for pattern data of aligned or non-aligned lines of adjacent text blocks on the page depends on the sequence of the upper line boundaries and the baselines on the page, respectively. |
