include/basegfx/polygon/b2dpolygoncutandtouch.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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  19
  20 #pragma once
  21
  22 #include <basegfx/polygon/b2dpolygon.hxx>
  23 #include <basegfx/polygon/b2dpolypolygon.hxx>
  24
  25 namespace basegfx::utils
  26 {
  27
  28 // look for self-intersections and self-touches (points on an edge) in given polygon and add
  29 // extra points there. Result will have no touches or intersections on an edge, only on points
  30 B2DPolygon addPointsAtCutsAndTouches(const B2DPolygon& rCandidate, size_t* pPointLimit = nullptr);
  31
  32 // look for polypolygon-intersections and polypolygon-touches (point of poly A on an edge of poly B) in given tools::PolyPolygon and add
  33 // extra points there. Result will have no touches or intersections between contained polygons on an edge, only on points. For
  34 // convenience, the correction for self-intersections for each member polygon will be used, too.
  35 B2DPolyPolygon addPointsAtCutsAndTouches(const B2DPolyPolygon& rCandidate, size_t* pPointLimit = nullptr);
  36
  37 // look for intersections of rCandidate with the edge from rStart to rEnd and add extra points there.
  38 // Points are only added in the range of the edge, not on the endless vector.
  39 B2DPolygon addPointsAtCuts(const B2DPolygon& rCandidate, const B2DPoint& rStart, const B2DPoint& rEnd);
  40
  41 // look for intersections of rCandidate with the mask Polygon and add extra points there.
  42 // The mask polygon is assumed to be closed, even when it's not explicitly.
  43 B2DPolygon addPointsAtCuts(const B2DPolygon& rCandidate, const B2DPolyPolygon& rMask);
  44
  45 } // end of namespace basegfx
  46
  47 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */