System and method for transferring thematic information over the internet
    4.
    发明授权
    System and method for transferring thematic information over the internet 失效
    通过互联网传送专题信息的系统和方法

    公开(公告)号:US07224365B1

    公开(公告)日:2007-05-29

    申请号:US09816615

    申请日:2001-03-23

    CPC classification number: G06T11/206

    Abstract: System and method for transferring thematic information over the Internet in which graphical representations for different themes are created in a vector format, the vector graphics are imported into the frames of an animation movie, the frames of the movie are downloaded from the server to the client, and the frames are selectively overlaid to display different themes. The movie comprises a menu and a plurality of overlays that can be accessed by selecting topics on the menu. The menu file is downloaded first, and then data files for the overlays are downloaded in sequence. If the client selects a topic before the data file associated with it has been downloaded, the download is interrupted, and the data file for the selected topic is downloaded immediately.The amount of data that must be downloaded for thematic maps is minimized by downloading the outline of the region as a separate frame or overlay, and using that overlay with the overlays for a number of different themes. Where the maps include colored areas, the amount of data which must be downloaded is further reduced by extending the colored areas beyond the boundaries of the map to a simple polygon, then using the outline as a mask to display only the portions of the colored areas within the boundaries.Some maps include icons which represent links to locations on the Internet which have video clips with information relating the areas where the icons are displayed. When those icons are selected, the video clips are downloaded and played.

    Abstract translation: 通过互联网传送专题信息的系统和方法,其中以矢量格式创建不同主题的图形表示,矢量图形被导入到动画电影的帧中,电影帧从服务器下载到客户端 ,并且帧被选择性地重叠以显示不同的主题。 电影包括菜单和可以通过选择菜单上的主题来访问的多个叠加层。 首先下载菜单文件,然后依次下载叠加层的数据文件。 如果客户端在与其关联的数据文件下载之前选择了一个主题,则下载被中断,并且立即下载所选主题的数据文件。 通过将区域的轮廓作为单独的框架或重叠式下载,并将叠加层与多个不同主题的叠加层一起使用,可以最大限度地减少专题地图下载的数据量。 在地图包括彩色区域的情况下,通过将彩色区域超出地图的边界延伸到简单多边形来进一步减少必须下载的数据量,然后使用轮廓作为掩模,仅显示彩色区域的部分 在边界内。 一些地图包括表示到因特网上的位置的链接的图标,其具有与显示图标的区域有关的信息的视频剪辑。 当选择这些图标时,下载并播放视频剪辑。

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