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1. 发明授权

US4991117A Figure data display method and system 失效
标题翻译：图数据显示方法和系统
公开(公告)号：US4991117A
公开(公告)日：1991-02-05
申请号：US283915
申请日：1988-12-13
申请人： Kazuaki Iwamura , Shigeru Kakumoto , Rita M. Harder , Yasunori Emura
发明人： Kazuaki Iwamura , Shigeru Kakumoto , Rita M. Harder , Yasunori Emura
IPC分类号： G06F17/30 , G06F3/048 , G06F3/14 , G06F3/153 , G06T1/00 , G06T11/00 , G06T11/60
CPC分类号： G06T11/00
摘要： A figure data display method and system in which the contents to be stored and constituting data are stored in the form of figure data divided into a plurality of partial areas, a file information table is prepared which registers therein figure area information, along with volume information of the figure data, in the sequence of serial numbers allocated to the partial areas dependent on their positions, and those partial areas, which are necessary for display of the figure data, are searched within a range of the registered serial numbers. By preparing the figure data represented in the compressed form by taking relative values between the coordinate values of respective features points in the figure data, or by retrieving file names in a manner involving direct searching the figure data from a storage medium, operation from the step of reading the figure data to the step of displaying the same can be speeded up. High-speed infinite scrolling can also be achieved by setting an adjacent area based on the above retrieval when the predetermined area to be displayed is exceeded upon scrolling of the display area, and then deleting the unnecessary area.
摘要翻译：一种图形数据显示方法和系统，其中存储的内容和构成数据以划分为多个部分区域的图形数据的形式存储，准备在其中登记图形区域信息的文件信息表以及卷信息在注册的序列号的范围内搜索分配给依赖于其位置的部分区域的序列号序列，以及显示图形数据所必需的那些部分区域。通过采用图形数据中的各个特征点的坐标值之间的相对值或通过从存储介质直接搜索图形数据的方式检索文件名称来准备以压缩形式表示的图形数据，从步骤读取图形数据到显示步骤的步骤可以加快。也可以通过在显示区域滚动时超过要显示的预定区域时，基于上述检索设置相邻区域，然后删除不必要的区域，来实现高速无限滚动。

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