index replace parameter description type
0 replace radius Radius of circle in which lines forming path considered for replacement must lie. <number>
1 straightness Minimum straightness required for replacement. <number>
2 coverage filter on If #t, then minimum coverage and minimum cumulative coverage thresholds apply. <boolean>
3 minimum cumulative coverage Minimum cumulative coverage (length weighted average across generations) threshold. <number>
4 minimum coverage Minimum coverage threshold. <number>
5 delta abstraction level maximum Maximum number of generations a line can be copied without replacement. <number>
6 replace straightest path If #t, then straightest sufficiently straight path is replaced, otherwise first sufficiently straight path is replaced. <boolean>