Invention Grant
US08368719B2 Method and system for fast clipping of polygons 有权
用于快速剪切多边形的方法和系统

Method and system for fast clipping of polygons
Abstract:
A method for rendering static graphics in a mobile device in applications such as map applications. Panning increments are received for panning a previously rendered frame to a panned frame. A rendering region is then determined based on the panning increment. A candidate polygon is then clipped to create clipped polygons contained within the rendering region. The clipped polygons can then be rendered, and a portion of the previously rendered frame can be copied, to provide the panned frame.
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