IMAGE DATA DISPLAY SYSTEM
    3.
    发明专利

    公开(公告)号:CA1289277C

    公开(公告)日:1991-09-17

    申请号:CA538996

    申请日:1987-06-05

    Applicant: IBM

    Abstract: An image data display system in which more than one portion of an image displayed on a screen may be transformed by extraction, scaling or rotation in relation to other areas of the screen concurrently. The control processor is modified to include means to determine when two or more concurrent transforms of portions of an image will cause the portions to be displayed on common areas of the display screen (or overlap) and, means to order and transmit to the display device the list of transforms to be performed so that the image pel definition signals are transmitted to the display device where image portions occupy common areas of the display screen the pel definition signals relating to higher priority portion of the image control the final content of the common areas of the displayed image.

    5.
    发明专利
    未知

    公开(公告)号:DE3681030D1

    公开(公告)日:1991-09-26

    申请号:DE3681030

    申请日:1986-06-16

    Applicant: IBM

    Abstract: In the system, image data are stored as a series of scan pel definition signals. The position and size of selected parts of an image to be displayed on the screen of the display device (12) can be transformed in response to signals received from a keyboard (13), tablet (14) or light pen (15). A control program store of the display device stores control programs for a number of transform operations. The system determines when two or more concurrent transforms of parts of an image would cause those parts to be displayed on common areas of the display screen. A list of the transform is ordered and created and signals which define the ordered list of transforms are sent to the display device. In the cases where image portions would occupy common areas of the display screen, the pel definition signals which relate to the higher priority portion of the image are used to control the final content of the common areas of the image displayed.

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