Method for Rendering Paths without Outlining Artifacts

摘要

A method for outlining a two-dimensional input path defined according to a nonzero winding rule is described. Degenerate segments and degenerate contours of the input path are removed. Intersections of the input path are determined. Contours of the input path that include intersections are marked. Unmarked interior contours are removed. Intersections are linked. The marked contours are walked to form new contours. Marked contours and degenerate contours are removed. The new contours and the unmarked contours are collected to form an equivalent output path. The segments of the equivalent output path are outlined.