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    • 8. 发明公开
    • Graphic drawing method and graphic drawing device
    • Verfahren und Anordnung zum graphischen Zeichnen。
    • EP0388832A2
    • 1990-09-26
    • EP90105110.2
    • 1990-03-19
    • HITACHI, LTD.
    • Yamaashi, KimiyaMiura, ShuuichiTaki, YujiKawabata, Atsushi
    • G09G5/36
    • G06T15/30G09G5/393
    • A graphic processing device is composed of a main storage device (102), a drawing control device (105) and a drawing device (110). The main storage device (102) stores data relative to the coordinates of plural graphics (103, 104). The drawing control device (105) reads out the data relative to the coordinates of the plural graphics stored in the main storage device, scans the coordinate data to calculate the coordinates of intersecting points of a scanning line and the plural graphics for each position of the scanning line. The drawing control device also decides an over­lapping area (AND area) or a common area (OR area) of the plural graphics on the basis of the coordinates of the intersecting points of the plural graphics and the scanning line. The drawing device draws the overlapping area (AND area) and the common area (OR area) of the plural graphics as a graphic.
    • 图形处理装置由主存储装置(102),绘图控制装置(105)和绘图装置(110)构成。 主存储装置(102)存储关于多个图形(103,104)的坐标的数据。 绘图控制装置(105)读出相对于存储在主存储装置中的多个图形的坐标的数据,扫描坐标数据以计算扫描线的交点的坐标和多个图形的坐标 扫描线。 绘图控制装置还基于多个图形和扫描线的交点的坐标,决定多个图形的重叠区域(AND区域)或公共区域(OR区域)。 绘图装置将多个图形的重叠区域(AND区域)和公共区域(OR区域)绘制为图形。
    • 9. 发明公开
    • Letter data control
    • Schriftzeichendaten-Steuerung。
    • EP0356104A2
    • 1990-02-28
    • EP89308251.1
    • 1989-08-15
    • HITACHI, LTD.
    • Kawabata, AtsushiMiura, ShuuichiYamaashi, KimiyaTaki, YujiKobayashi, YoshikiTanifuji, Shinya
    • G06K15/02
    • G06F3/1297
    • A plurality of letter output devices (workstations (102, 103, 104), printers (105)) are connected to a letter data control device (101) by a transmission path (106). The control device (101) stores letter data for transmission to the letter output devices (102, 103, 104, 105), and is able to convert that letter data to a desired layout (e.g. from a vector font to a dot font) and then transmits the converted letter data to one or more of the letter output devices (102, 103, 104, 105). The control device (101) is able to select part of its stored letter data for transmission so that only commonly used letter data need be transmitted during start up of the system. Since a large amount of letter data may be stored in the control device (101), and only part may be transmitted to the letter output devices (102, 103, 104, 105), those output devices (102, 103, 104, 105) can have a relatively small memory.
    • 多个字母输出设备(工作站(102,103,104),打印机(105))通过传输路径(106)连接到字母数据控制设备(101)。 控制装置(101)存储用于发送到字母输出装置(102,103,104,105)的字母数据,并且能够将该字母数据转换成期望的布局(例如从矢量字体到点字体),以及 然后将转换的字母数据发送到一个或多个字母输出设备(102,103,104,105)。 控制装置(101)能够选择其存储的字母数据的一部分用于发送,使得在系统启动期间仅需要传送常用的字母数据。 由于大量的字母数据可以存储在控制装置(101)中,并且只有一部分可以被发送到字母输出装置(102,103,104,105),那些输出装置(102,103,104,105 )可以具有相对较小的内存。