Method for graphic display
专利汇可以提供Method for graphic display专利检索，专利查询，专利分析的服务。并且In a graphics display system where the shape of a polygon upon a surface (1) in XYZ space is determined by trimming a corresponding subspan (5), described by a collection of original vertices, in a parameter space according to a piecewise linear trimming curve having a sequence of consecutive segments in the parameter space, is rendered by:
(a) traversing the consecutive segments of the trimming curve in their sequential order to find for each segment any points of intersection (141, 145) in parameter space between the trimming curve and the boundaries of the subspan; (b) classifying those points of intersection as new vertices of the subspan and as either points of entrance (141, B) into the subspan, as points of exit from (145, E) the subspan or as middle points (142, (143) between points of entrance and points of exit; (c) rendering as a polygon of altered shape a trimmed polygon described by the new vertices and those original vertices that lie upon that portion of the subspan remaining after being cut by the trimming curve; and (d) displaying upon a graphics system a visual image of a trimmed polygon altered in shape in accordance with the new and remaining original vertices of step (c).，下面是Method for graphic display专利的具体信息内容。
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