发明名称 Computer generated variable line width of a vector graphic
摘要 In a computer system, a method and an apparatus for varying contour widths of a vector graphic. The method including the steps of reading vector shape data having a contour, control points, a bulge position, a bulge width, and a base position, determining new border control points along the contour, and drawing a new variable width contour using the new border control points from the base control point to a bulge position control point. The apparatus of the present invention includes a processor, an operating system memory coupled to the processor, a vector shape database memory coupled to the processor for storing data that defines the vector shape, a routines memory coupled to the processor for controlling the operating system memory and the processor, and a control variables memory coupled to the processor for storing control variables that direct the routines memory.
申请公布号 US5642476(A) 申请公布日期 1997.06.24
申请号 US19950414630 申请日期 1995.03.31
申请人 APPLE COMPUTER, INC. 发明人 TURNER, JOHN B.
分类号 G06T11/20;(IPC1-7):G06T11/60 主分类号 G06T11/20
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