Difference

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Difference

Paths64 Difference(const Paths64& subjects, const Paths64& clips, FillRule fillrule);
PathsD Difference(const PathsD& subjects, const PathsD& clips, FillRule fillrule, int decimalPrec);

This function differences closed subject paths from clip paths. However, with more complex clipping operations (eg when clipping open paths), you'll need to use the Clipper64 or ClipperD classes directly.

When using floating point types, the precision parameter indicated the desired coordinate precision (up to 8 decimal places).

Example:

Paths64 subject, clip, solution;
subject.push_back(MakePath({100, 50, 10, 79, 65, 2, 65, 98, 10, 21}));
clip.push_back(MakePath({98, 63, 4, 68, 77, 8, 52, 100, 19, 12}));
solution = Difference(subject, clip, FillRule::NonZero);  
//draw solution

  

See Also

Overview, Clipper64, ClipperD, ClipType, FillRule