| 1976 | //------------------------------------------------------------------------------ |
| 1977 | |
| 1978 | void Clipper::InsertLocalMinimaIntoAEL(const cInt botY) |
| 1979 | { |
| 1980 | const LocalMinimum *lm; |
| 1981 | while (PopLocalMinima(botY, lm)) |
| 1982 | { |
| 1983 | TEdge* lb = lm->LeftBound; |
| 1984 | TEdge* rb = lm->RightBound; |
| 1985 | |
| 1986 | OutPt *Op1 = 0; |
| 1987 | if (!lb) |
| 1988 | { |
| 1989 | //nb: don't insert LB into either AEL or SEL |
| 1990 | InsertEdgeIntoAEL(rb, 0); |
| 1991 | SetWindingCount(*rb); |
| 1992 | if (IsContributing(*rb)) |
| 1993 | Op1 = AddOutPt(rb, rb->Bot); |
| 1994 | } |
| 1995 | else if (!rb) |
| 1996 | { |
| 1997 | InsertEdgeIntoAEL(lb, 0); |
| 1998 | SetWindingCount(*lb); |
| 1999 | if (IsContributing(*lb)) |
| 2000 | Op1 = AddOutPt(lb, lb->Bot); |
| 2001 | InsertScanbeam(lb->Top.Y); |
| 2002 | } |
| 2003 | else |
| 2004 | { |
| 2005 | InsertEdgeIntoAEL(lb, 0); |
| 2006 | InsertEdgeIntoAEL(rb, lb); |
| 2007 | SetWindingCount( *lb ); |
| 2008 | rb->WindCnt = lb->WindCnt; |
| 2009 | rb->WindCnt2 = lb->WindCnt2; |
| 2010 | if (IsContributing(*lb)) |
| 2011 | Op1 = AddLocalMinPoly(lb, rb, lb->Bot); |
| 2012 | InsertScanbeam(lb->Top.Y); |
| 2013 | } |
| 2014 | |
| 2015 | if (rb) |
| 2016 | { |
| 2017 | if (IsHorizontal(*rb)) |
| 2018 | { |
| 2019 | AddEdgeToSEL(rb); |
| 2020 | if (rb->NextInLML) |
| 2021 | InsertScanbeam(rb->NextInLML->Top.Y); |
| 2022 | } |
| 2023 | else InsertScanbeam( rb->Top.Y ); |
| 2024 | } |
| 2025 | |
| 2026 | if (!lb || !rb) continue; |
| 2027 | |
| 2028 | //if any output polygons share an edge, they'll need joining later ... |
| 2029 | if (Op1 && IsHorizontal(*rb) && |
| 2030 | m_GhostJoins.size() > 0 && (rb->WindDelta != 0)) |
| 2031 | { |
| 2032 | for (JoinList::size_type i = 0; i < m_GhostJoins.size(); ++i) |
| 2033 | { |
| 2034 | Join* jr = m_GhostJoins[i]; |
| 2035 | //if the horizontal Rb and a 'ghost' horizontal overlap, then convert |
nothing calls this directly
no test coverage detected