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Update Clipper to last trunk to fix a couple Clipper bugs causing empty intersection results and failure to process polylines with coinciding endpoints. This also caused crashed in some rare circumstances

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This commit is contained in:
Alessandro Ranellucci 2014-05-23 23:58:43 +02:00
parent a3bd1b5302
commit 70ceb853f1
3 changed files with 205 additions and 379 deletions
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29
xs/src/clipper.hpp
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@ -1,8 +1,8 @@
/*******************************************************************************
* *
* Author : Angus Johnson *
* Version : 6.1.3a *
* Date : 22 January 2014 *
* Version : 6.1.5 *
* Date : 22 May 2014 *
* Website : http://www.angusj.com *
* Copyright : Angus Johnson 2010-2014 *
* *
@ -34,7 +34,7 @@
#ifndef clipper_hpp
#define clipper_hpp
#define CLIPPER_VERSION "6.1.3"
#define CLIPPER_VERSION "6.1.5"
//use_int32: When enabled 32bit ints are used instead of 64bit ints. This
//improve performance but coordinate values are limited to the range +/- 46340
@ -69,11 +69,15 @@ enum PolyType { ptSubject, ptClip };
enum PolyFillType { pftEvenOdd, pftNonZero, pftPositive, pftNegative };
#ifdef use_int32
typedef int cInt;
typedef unsigned int cUInt;
typedef int cInt;
static cInt const loRange = 46340;
static cInt const hiRange = 46340;
#else
typedef signed long long cInt;
typedef unsigned long long cUInt;
typedef signed long long cInt;
typedef signed long long long64; //used by Int128 class
typedef unsigned long long ulong64;
static cInt const loRange = 0x3FFFFFFF;
static cInt const hiRange = 0x3FFFFFFFFFFFFFFFLL;
#endif
struct IntPoint {
@ -117,7 +121,7 @@ struct DoublePoint
//------------------------------------------------------------------------------
#ifdef use_xyz
typedef void (*TZFillCallback)(IntPoint& z1, IntPoint& z2, IntPoint& pt);
typedef void (*TZFillCallback)(IntPoint& e1bot, IntPoint& e1top, IntPoint& e2bot, IntPoint& e2top, IntPoint& pt);
#endif
enum InitOptions {ioReverseSolution = 1, ioStrictlySimple = 2, ioPreserveCollinear = 4};
@ -183,8 +187,7 @@ void CleanPolygons(const Paths& in_polys, Paths& out_polys, double distance = 1.
void CleanPolygons(Paths& polys, double distance = 1.415);
void MinkowskiSum(const Path& pattern, const Path& path, Paths& solution, bool pathIsClosed);
void MinkowskiSum(const Path& pattern, const Paths& paths,
Paths& solution, PolyFillType pathFillType, bool pathIsClosed);
void MinkowskiSum(const Path& pattern, const Paths& paths, Paths& solution, bool pathIsClosed);
void MinkowskiDiff(const Path& poly1, const Path& poly2, Paths& solution);
void PolyTreeToPaths(const PolyTree& polytree, Paths& paths);
@ -308,15 +311,13 @@ private:
bool IsTopHorz(const cInt XPos);
void SwapPositionsInAEL(TEdge *edge1, TEdge *edge2);
void DoMaxima(TEdge *e);
void PrepareHorzJoins(TEdge* horzEdge, bool isTopOfScanbeam);
void ProcessHorizontals(bool IsTopOfScanbeam);
void ProcessHorizontal(TEdge *horzEdge, bool isTopOfScanbeam);
void AddLocalMaxPoly(TEdge *e1, TEdge *e2, const IntPoint &pt);
OutPt* AddLocalMinPoly(TEdge *e1, TEdge *e2, const IntPoint &pt);
OutRec* GetOutRec(int idx);
void AppendPolygon(TEdge *e1, TEdge *e2);
void IntersectEdges(TEdge *e1, TEdge *e2,
const IntPoint &pt, bool protect = false);
void IntersectEdges(TEdge *e1, TEdge *e2, IntPoint &pt);
OutRec* CreateOutRec();
OutPt* AddOutPt(TEdge *e, const IntPoint &pt);
void DisposeAllOutRecs();
@ -344,7 +345,7 @@ private:
void FixupFirstLefts1(OutRec* OldOutRec, OutRec* NewOutRec);
void FixupFirstLefts2(OutRec* OldOutRec, OutRec* NewOutRec);
#ifdef use_xyz
void SetZ(IntPoint& pt, TEdge& e);
void SetZ(IntPoint& pt, TEdge& e1, TEdge& e2);
#endif
};
//------------------------------------------------------------------------------