发明名称 Topology maintaining geometric data correcting method and system employing same
摘要 A geometric data correction method is applicable to geometric data-element data comprising a plurality of line segments and circular arcs. When geometric data elements that should originally be interconnected cross or become separated from each other, the offset between geometric data elements is corrected automatically. This saves a great amount of time in comparison with that needed for redrawing of the geometric data elements. The method includes a topology recognition step of recognizing the topology of the geometric data elements, a geometric-parameter alteration step of correcting the offset of geometric data elements by altering geometric parameters, which define each geometric data element, with regard to all geometric data elements while maintaining the topology thereof, and an end-point decision step of deciding end points accompanied by enlargement/reduction of the geometric data elements. The method may further include a parameter-setting step of setting a connection parameter, which is necessary in order to obtain at least the connected state between geometric data elements, and a maximum amount of alteration of the geometric parameters of the geometric data elements, or an error-information output step of outputting error information generated at the geometric-parameter alteration step.
申请公布号 US5506948(A) 申请公布日期 1996.04.09
申请号 US19940260266 申请日期 1994.06.14
申请人 CANON KABUSHIKI KAISHA 发明人 ONITAKE, MIYUKI;KONDO, SATOSHI
分类号 G06F17/50;(IPC1-7):G06T3/00 主分类号 G06F17/50
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