b2dpolygoncutandtouch.hxx

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#pragma once
 
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolypolygon.hxx>
 
namespace basegfx::utils
{
 
// look for self-intersections and self-touches (points on an edge) in given polygon and add
// extra points there. Result will have no touches or intersections on an edge, only on points
B2DPolygon addPointsAtCutsAndTouches(const B2DPolygon& rCandidate, size_t* pPointLimit = nullptr);
 
// look for polypolygon-intersections and polypolygon-touches (point of poly A on an edge of poly B) in given tools::PolyPolygon and add
// extra points there. Result will have no touches or intersections between contained polygons on an edge, only on points. For
// convenience, the correction for self-intersections for each member polygon will be used, too.
B2DPolyPolygon addPointsAtCutsAndTouches(const B2DPolyPolygon& rCandidate, size_t* pPointLimit = nullptr);
 
// look for intersections of rCandidate with the edge from rStart to rEnd and add extra points there.
// Points are only added in the range of the edge, not on the endless vector.
B2DPolygon addPointsAtCuts(const B2DPolygon& rCandidate, const B2DPoint& rStart, const B2DPoint& rEnd);
 
// look for intersections of rCandidate with the mask Polygon and add extra points there.
// The mask polygon is assumed to be closed, even when it's not explicitly.
B2DPolygon addPointsAtCuts(const B2DPolygon& rCandidate, const B2DPolyPolygon& rMask);
 
} // end of namespace basegfx
 
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