Merge pull request 'hotfix/v9.0.4' (#434) from hotfix/v9.0.4 into release/v9.1.0

Reviewed-on: https://git.onlyoffice.com/ONLYOFFICE/core/pulls/434

DesktopEditor/graphics/BooleanOperations.cpp

@@ -75,7 +75,7 @@ bool Segment::IsValid(const BooleanOpType& op) const noexcept
 		else if (Id == 2 && Winding == 1)
 			return true;
 	}
-	else if (Winding == op)
+	else if (Winding && op == Intersection || !Winding && op == Union)
 		return true;
 	return false;
 }
@@ -396,18 +396,12 @@ Curve Curve::GetPart(double from, double to) const noexcept
 	if (from > 0)
 	{
 		result = Subdivide(from)[1];
-		result.Segment2.HI.X -= result.Segment2.P.X;
-		result.Segment2.HI.Y -= result.Segment2.P.Y;
-		result.Segment2.HO.X -= result.Segment2.P.X;
-		result.Segment2.HO.Y -= result.Segment2.P.Y;
+		result.Segment2.SetHandles(result.Segment2.HI, result.Segment2.HO);
 	}
 	if (to < 1)
 	{
 		result = result.Subdivide((to - from) / (1 - from))[0];
-		result.Segment2.HI.X -= result.Segment2.P.X;
-		result.Segment2.HI.Y -= result.Segment2.P.Y;
-		result.Segment2.HO.X -= result.Segment2.P.X;
-		result.Segment2.HO.Y -= result.Segment2.P.Y;
+		result.Segment2.SetHandles(result.Segment2.HI, result.Segment2.HO);
 	}
 
 	if (from > to)
@@ -688,8 +682,7 @@ void Curve::Flip() noexcept
 	PointD tmpHI = Segment2.P + Segment2.HI;
 	PointD tmpHO = Segment2.P + Segment2.HO;
 	std::swap(Segment1.P, Segment2.P);
-	Segment2.HI	= tmpHI - Segment2.P;
-	Segment2.HO	= tmpHO - Segment2.P;
+	Segment2.SetHandles(tmpHO, tmpHI);
 }
 
 bool Curve::IsStraight() const noexcept
@@ -743,10 +736,12 @@ bool Location::IsTouching() noexcept
 CBooleanOperations::CBooleanOperations(const CGraphicsPath& path1,
 									   const CGraphicsPath& path2,
 									   BooleanOpType op,
-									   long fillType) :
+									   long fillType,
+									   bool isLuminosity) :
 	Op(op),
 	Close1(path1.Is_poly_closed()),
 	Close2(path2.Is_poly_closed()),
+	IsLuminosity(isLuminosity),
 	FillType(fillType),
 	Path1(path1),
 	Path2(path2)
@@ -936,14 +931,13 @@ void CBooleanOperations::TraceAllOverlap()
 	}
 	else
 	{
-		int count1 = 0, count2 = 0;
+		bool winding1{false},
+			 winding2{false};
 		for (const auto& s : Segments1)
 		{
 			if (!s.Inters)
 			{
-				int touchCount = 0;
-				for (const auto& c : OriginCurves2)
-					count1 += CheckInters(MIN_POINT, s, c, touchCount);
+				winding1 = IsInside(s);
 				break;
 			}
 		}
@@ -952,9 +946,7 @@ void CBooleanOperations::TraceAllOverlap()
 		{
 			if (!s.Inters)
 			{
-				int touchCount = 0;
-				for (const auto& c : OriginCurves1)
-					count2 += CheckInters(MIN_POINT, s, c, touchCount);
+				winding2 = IsInside(s);
 				break;
 			}
 		}
@@ -966,19 +958,19 @@ void CBooleanOperations::TraceAllOverlap()
 		}
 		else if (Op == Union)
 		{
-			if (count1 % 2 == 0 && count2 % 2 == 0)
+			if (!winding1 && !winding2)
 				TracePaths();
-			else if (count1 % 2 == 0)
+			else if (!winding1)
 				Result = std::move(Path1);
 			else
 				Result = std::move(Path2);
 		}
-		else if (count1 % 2 == 0 && count2 % 2 == 0)
+		else if (!winding1 && !winding2)
 			Result = std::move(Path1);
 		else
 		{
 			Result.StartFigure();
-			for (const auto& seg : count1 % 2 == 0 ? Segments1 : Segments2)
+			for (const auto& seg : !winding1 ? Segments1 : Segments2)
 			{
 				if (!seg.Inters && !seg.Visited)
 				{
@@ -1020,35 +1012,18 @@ void CBooleanOperations::TracePaths()
 {
 	size_t length = Segments1.size();
 	Result.StartFigure();
-	bool first_start = true;
 	for (size_t i = 0; i < length + Segments2.size(); i++)
 	{
 		Segment s = i >= length ? Segments2[i - length] : Segments1[i];
 		bool valid = s.IsValid(Op),
 			 start = true;
-		PointD start_point;
 		while (valid)
 		{
 			if (!start || (Op == Intersection && s.Inters && !GetNextSegment(s).Inters))
 				SetVisited(s);
 
-			if (first_start)
-			{
+			if (start)
 				Result.MoveTo(s.P.X, s.P.Y);
-				start_point = s.P;
-			}
-			else if (start)
-			{
-				double x, y;
-				Result.GetLastPoint(x, y);
-				if (isZero(start_point.X - x) && isZero(start_point.Y - y))
-				{
-					Result.MoveTo(s.P.X, s.P.Y);
-					start_point = s.P;
-				}
-				else
-					Result.LineTo(s.P.X, s.P.Y);
-			}
 			else if (s.IsCurve)
 				Result.CurveTo(s.HI.X + s.P.X, s.HI.Y + s.P.Y,
 							   s.HO.X + s.P.X, s.HO.Y + s.P.Y,
@@ -1082,9 +1057,6 @@ void CBooleanOperations::TracePaths()
 
 			if (start)
 				start = false;
-
-			if (first_start)
-				first_start = false;
 		}
 
 		if (!start && AllOverlap()) break;
@@ -1247,6 +1219,14 @@ Curve CBooleanOperations::GetNextCurve(const Curve& curve) const noexcept
 				 : Curves2[curve.Segment1.Index + 1];
 }
 
+Segment CBooleanOperations::GetPreviousSegment(const Segment& segment) const noexcept
+{
+	if (segment.Index == 0)
+		return segment.Id == 1 ? Segments1[Segments1.size() - 1] : Segments2[Segments2.size() - 1];
+	else
+		return segment.Id == 1 ? Segments1[segment.Index - 1] : Segments2[segment.Index - 1];
+}
+
 Segment CBooleanOperations::GetNextSegment(const Segment& segment) const noexcept
 {
 	bool path1 = segment.Id == 1;
@@ -1559,9 +1539,9 @@ int CBooleanOperations::AddCurveIntersection(const Curve& curve1, const Curve& c
 
 	double	d1 = getSignedDistance(x2[0], y2[0], x2[3], y2[3], x2[1], y2[1], false),
 			d2 = getSignedDistance(x2[0], y2[0], x2[3], y2[3], x2[2], y2[2], false),
-			factor = (d1 * d2) > 0 ? 3.0 / 4.0 : 4.0 / 9.0,
-			dMin = factor * min(0, d1, d2),
-			dMax = factor * max(0, d1, d2),
+			factor = (d1 * d2) > 0.0 ? 3.0 / 4.0 : 4.0 / 9.0,
+			dMin = factor * min(0.0, d1, d2),
+			dMax = factor * max(0.0, d1, d2),
 			dp0 = getSignedDistance(x2[0], y2[0], x2[3], y2[3], x1[0], y1[0], false),
 			dp1 = getSignedDistance(x2[0], y2[0], x2[3], y2[3], x1[1], y1[1], false),
 			dp2 = getSignedDistance(x2[0], y2[0], x2[3], y2[3], x1[2], y1[2], false),
@@ -1665,18 +1645,29 @@ int CBooleanOperations::CheckInters(const PointD& point, const Segment& segment,
 		std::vector<double> roots = curve.GetCurveLineIntersection(segment.P.X,segment.P.Y, point.X - segment.P.X, point.Y - segment.P.Y);
 		Curve line(segment, Segment(point));
 
-		return roots.size() % 2;
+		if (IsLuminosity)
+			return roots.size() % 2;
 
-		// int count = 0;
-		// for (const auto& r : roots)
-		// 	if (line.GetTimeOf(curve.GetPoint(r)) != -1)
-		// 		count++;
+		int count = 0;
+		for (const auto& r : roots)
+			if (line.GetTimeOf(curve.GetPoint(r)) != -1)
+				count++;
 
-		// return count;
+		return count;
 	}
 	return 0;
 }
 
+bool CBooleanOperations::IsInside(const Segment& segment) const
+{
+	int count = 0;
+	int touchCount = 0;
+	for(const auto& c : segment.Id == 1 ? OriginCurves2 : OriginCurves1)
+		count += CheckInters(MIN_POINT, segment, c, touchCount);
+
+	return count % 2;
+}
+
 void CBooleanOperations::SetWinding()
 {
 	if (Locations.empty() || (Locations.size() == 2 && Locations[0]->Ends))
@@ -1691,21 +1682,15 @@ void CBooleanOperations::SetWinding()
 			if (!s.Inters)
 				s2 = s;
 
-		int count = 0,
-			touchCount = 0;
-		for (const auto& c : OriginCurves2)
-			count += CheckInters(MIN_POINT, s1, c, touchCount);
+		bool winding = IsInside(s1);
 
 		for (auto& s : Segments1)
-			s.Winding = count % 2;
+			s.Winding = winding;
 
-		count = 0;
-		touchCount = 0;
-		for (const auto& c : OriginCurves1)
-			count += CheckInters(MIN_POINT, s2, c, touchCount);
+		winding = IsInside(s2);
 
 		for (auto& s : Segments2)
-			s.Winding = count % 2;
+			s.Winding = winding;
 	}
 	else
 	{
@@ -1717,18 +1702,36 @@ void CBooleanOperations::SetWinding()
 			if (s.IsEmpty() || s.Inters || s == start)
 				continue;
 
-			int count = 0,
-				touchCount = 0;
-			for (const auto& c : (s.Id == 1 ? OriginCurves2 : OriginCurves1))
-				count += CheckInters(MIN_POINT, s, c, touchCount);
+			bool winding = IsInside(s);
+
+			int winding1 = false;
+			if (s.Id == 1 ? !Close1 : !Close2)
+				winding1 = IsInside(GetPreviousSegment(start));
 
 			do
 			{
-				if (s.Id == 1 )
-					Segments1[s.Index].Winding = count % 2;
+				if (s.Id == 1)
+				{
+					Segments1[s.Index].Winding = winding;
+					if (!Close1 && s.Index == Segments1.size() - 1)
+					{
+						winding = winding1;
+						s = Segments1[0];
+					}
+					else
+						s = GetNextSegment(s);
+				}
 				else
-					Segments2[s.Index].Winding = count % 2;
-				s = GetNextSegment(s);
+				{
+					Segments2[s.Index].Winding = winding;
+					if (!Close2 && s.Index == Segments2.size() - 1)
+					{
+						winding = winding1;
+						s = Segments2[0];
+					}
+					else
+						s = GetNextSegment(s);
+				}
 			} while (!s.IsEmpty() && !s.Inters && s != start);
 		}
 	}
@@ -1928,7 +1931,8 @@ void CBooleanOperations::AddOffsets(std::vector<double>& offsets,
 CGraphicsPath CalcBooleanOperation(const CGraphicsPath& path1,
 								   const CGraphicsPath& path2,
 								   BooleanOpType op,
-								   long fillType)
+								   long fillType,
+								   bool isLuminosity)
 {
 	std::vector<CGraphicsPath>	paths1 = path1.GetSubPaths(),
 								paths2 = path2.GetSubPaths(),
@@ -1938,7 +1942,7 @@ CGraphicsPath CalcBooleanOperation(const CGraphicsPath& path1,
 	{
 		for (const auto& p2 : paths2)
 		{
-			CBooleanOperations operation(p1, p2, op, fillType);
+			CBooleanOperations operation(p1, p2, op, fillType, isLuminosity);
 			paths.push_back(operation.GetResult());
 		}
 	}

DesktopEditor/graphics/BooleanOperations.h

@@ -17,10 +17,10 @@ namespace Aggplus
 		bool IsCurve	= false;
 		bool Visited	= false;
 		bool PolyClosed = false;
+		bool Winding	= false;
 
-		int Index	= -1;
-		int Id		= 0;
-		int Winding	= 0;
+		int Index = -1;
+		int Id	  = 0;
 
 		std::shared_ptr<Location> Inters{nullptr};
 
@@ -107,7 +107,7 @@ namespace Aggplus
 	class CBooleanOperations
 	{
 	public:
-		CBooleanOperations(const CGraphicsPath& path1, const CGraphicsPath& path2, BooleanOpType op, long fillType = c_nWindingFillMode);
+		CBooleanOperations(const CGraphicsPath& path1, const CGraphicsPath& path2, BooleanOpType op, long fillType, bool isLuminosity);
 		~CBooleanOperations();
 		CGraphicsPath&& GetResult();
 
@@ -124,6 +124,7 @@ namespace Aggplus
 		Curve	GetCurve(const Segment& segment) const noexcept;
 		Curve	GetPreviousCurve(const Curve& curve) const noexcept;
 		Curve	GetNextCurve(const Curve& curve) const noexcept;
+		Segment GetPreviousSegment(const Segment& segment) const noexcept;
 		Segment GetNextSegment(const Segment& segment) const noexcept;
 		void	SetVisited(const Segment& segment);
 
@@ -141,6 +142,7 @@ namespace Aggplus
 		int  AddCurveIntersection(const Curve& curve1, const Curve& curve2, const Curve& startCurve1, const Curve& startCurve2, bool flip,
 								  int recursion = 0, int calls = 0, double tMin = 0.0, double tMax = 1.0, double uMin = 0.0, double uMax = 1.0);
 		int  CheckInters(const PointD& point, const Segment& segment, const Curve& curve, int& touchCount) const;
+		bool IsInside(const Segment& segment) const;
 		void SetWinding();
 
 		// Location
@@ -156,6 +158,7 @@ namespace Aggplus
 
 		bool Close1 = true;
 		bool Close2 = true;
+		bool IsLuminosity = false;
 
 		// c_nStroke, c_nWindingFillMode, c_nEvenOddFillMode
 		long FillType = c_nWindingFillMode;

DesktopEditor/graphics/GraphicsPath.h

@@ -189,7 +189,7 @@ namespace Aggplus
 		Exclusion      = 3
 	};
 
-	GRAPHICS_DECL CGraphicsPath CalcBooleanOperation(const CGraphicsPath& path1, const CGraphicsPath& path2, BooleanOpType op, long fillType = c_nWindingFillMode);
+	GRAPHICS_DECL CGraphicsPath CalcBooleanOperation(const CGraphicsPath& path1, const CGraphicsPath& path2, BooleanOpType op, long fillType = c_nWindingFillMode, bool isLuminosity = false);
 
 } // namespace Aggplus
 

DesktopEditor/graphics/boolean_operations_math.h

@@ -244,7 +244,7 @@ inline void getConvexHull(const double& dq0, const double& dq1,
 		}
 	}
 
-	if (dist1 < 0.0 || dist2 < 0.0)
+	if (dist1 < 0.0 || (dist1 == 0.0 && dist2 < 0.0))
 		std::swap(top, bottom);
 }
 

DesktopEditor/graphics/tests/BooleanOperations_Unit-tests/tst_booleanoperations.cpp

@@ -453,6 +453,723 @@ TEST(BooleanOperations, CurveIntersCurve)
 	resultSubtract.CloseFigure();
 
 
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Intersection) == resultIntersect);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Union) == resultUnite);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Subtraction) == resultSubtract);
+}
+
+TEST(BooleanOperations, RectIntersRect)
+{
+	Aggplus::CGraphicsPath path1, path2, resultIntersect, resultUnite, resultSubtract;
+
+	path1.StartFigure();
+	path1.MoveTo(55.0, 25.0);
+	path1.LineTo(255.0, 25.0);
+	path1.LineTo(255.0, 225.0);
+	path1.LineTo(55.0, 225.0);
+	path1.LineTo(55.0, 25.0);
+	path1.CloseFigure();
+
+	path2.StartFigure();
+	path2.MoveTo(152.0, 28.0);
+	path2.LineTo(352.0, 28.0);
+	path2.LineTo(352.0, 228.0);
+	path2.LineTo(152.0, 228.0);
+	path2.LineTo(152.0, 28.0);
+	path2.CloseFigure();
+
+	resultIntersect.StartFigure();
+	resultIntersect.MoveTo(255.0, 28.0);
+	resultIntersect.LineTo(255.0, 225.0);
+	resultIntersect.LineTo(152.0, 225.0);
+	resultIntersect.LineTo(152.0, 28.0);
+	resultIntersect.LineTo(255.0, 28.0);
+	resultIntersect.CloseFigure();
+
+	resultUnite.StartFigure();
+	resultUnite.MoveTo(55.0, 25.0);
+	resultUnite.LineTo(255.0, 25.0);
+	resultUnite.LineTo(255.0, 28.0);
+	resultUnite.LineTo(352.0, 28.0);
+	resultUnite.LineTo(352.0, 228.0);
+	resultUnite.LineTo(152.0, 228.0);
+	resultUnite.LineTo(152.0, 225.0);
+	resultUnite.LineTo(55.0, 225.0);
+	resultUnite.LineTo(55.0, 25.0);
+	resultUnite.CloseFigure();
+
+	resultSubtract.StartFigure();
+	resultSubtract.MoveTo(55.0, 25.0);
+	resultSubtract.LineTo(255.0, 25.0);
+	resultSubtract.LineTo(255.0, 28.0);
+	resultSubtract.LineTo(152.0, 28.0);
+	resultSubtract.LineTo(152.0, 225.0);
+	resultSubtract.LineTo(55.0, 225.0);
+	resultSubtract.LineTo(55.0, 25.0);
+	resultSubtract.CloseFigure();
+
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Intersection) == resultIntersect);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Union) == resultUnite);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Subtraction) == resultSubtract);
+}
+
+TEST(BooleanOperations, EllipseIntersEllipse)
+{
+	Aggplus::CGraphicsPath path1, path2, resultIntersect, resultUnite, resultSubtract;
+
+	path1.AddEllipse(148.0, 82.0, 200.0, 200.0);
+	path2.AddEllipse(39.0, 130.0, 200.0, 200.0);
+
+	resultIntersect.StartFigure();
+	resultIntersect.MoveTo(225.883, 279.546);
+	resultIntersect.CurveTo(181.297, 269.48, 148.0, 229.628, 148.0, 182.0);
+	resultIntersect.CurveTo(148.0, 163.973, 152.77, 147.06, 161.117, 132.454);
+	resultIntersect.CurveTo(205.703, 142.52, 239.0, 182.372, 239.0, 230.0);
+	resultIntersect.CurveTo(239.0, 248.027, 234.23, 264.94, 225.883, 279.546);
+	resultIntersect.CloseFigure();
+
+	resultUnite.StartFigure();
+	resultUnite.MoveTo(348.0, 182.0);
+	resultUnite.CurveTo(348.0, 237.228, 303.228, 282.0, 248.0, 282.0);
+	resultUnite.CurveTo(240.4, 282.0, 232.998, 281.152, 225.883, 279.546);
+	resultUnite.CurveTo(208.658, 309.686, 176.201, 330.0, 139.0, 330.0);
+	resultUnite.CurveTo(83.7715, 330.0, 39.0, 285.228, 39.0, 230.0);
+	resultUnite.CurveTo(39.0, 174.772, 83.7715, 130.0, 139.0, 130.0);
+	resultUnite.CurveTo(146.6, 130.0, 154.002, 130.848, 161.117, 132.454);
+	resultUnite.CurveTo(178.342, 102.314, 210.799, 82.0, 248.0, 82.0);
+	resultUnite.CurveTo(303.228, 82.0, 348.0, 126.772, 348.0, 182.0);
+	resultUnite.CloseFigure();
+
+	resultSubtract.StartFigure();
+	resultSubtract.MoveTo(348.0, 182.0);
+	resultSubtract.CurveTo(348.0, 237.228, 303.228, 282.0, 248.0, 282.0);
+	resultSubtract.CurveTo(240.4, 282.0, 232.998, 281.152, 225.883, 279.546);
+	resultSubtract.CurveTo(234.23, 264.94, 239.0, 248.027, 239.0, 230.0);
+	resultSubtract.CurveTo(239.0, 182.372, 205.703, 142.52, 161.117, 132.454);
+	resultSubtract.CurveTo(178.342, 102.314, 210.799, 82.0, 248.0, 82.0);
+	resultSubtract.CurveTo(303.228, 82.0, 348.0, 126.772, 348.0, 182.0);
+	resultSubtract.CloseFigure();
+
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Intersection) == resultIntersect);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Union) == resultUnite);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Subtraction) == resultSubtract);
+}
+
+TEST(BooleanOperations, EllipseIntersCross)
+{
+	Aggplus::CGraphicsPath path1, path2, resultIntersect, resultUnite, resultSubtract;
+
+	path1.AddEllipse(33.0, 60.0, 200.0, 200.0);
+
+	path2.StartFigure();
+	path2.MoveTo(147.0, 235.0);
+	path2.LineTo(167.5, 235.0);
+	path2.LineTo(167.5, 214.5);
+	path2.LineTo(188.0, 214.5);
+	path2.LineTo(188.0, 235.0);
+	path2.LineTo(208.5, 235.0);
+	path2.LineTo(208.5, 255.5);
+	path2.LineTo(188.0, 255.5);
+	path2.LineTo(188.0, 276.0);
+	path2.LineTo(167.5, 276.0);
+	path2.LineTo(167.5, 255.5);
+	path2.LineTo(147.0, 255.5);
+	path2.LineTo(147.0, 235.0);
+	path2.CloseFigure();
+
+	resultIntersect.StartFigure();
+	resultIntersect.MoveTo(199.146, 235);
+	resultIntersect.CurveTo(188.719, 244.203, 176.358, 251.266, 162.75, 255.5);
+	resultIntersect.LineTo(147, 255.5);
+	resultIntersect.LineTo(147, 235);
+	resultIntersect.LineTo(167.5, 235);
+	resultIntersect.LineTo(167.5, 214.5);
+	resultIntersect.LineTo(188, 214.5);
+	resultIntersect.LineTo(188, 235);
+	resultIntersect.LineTo(199.146, 235);
+	resultIntersect.CloseFigure();
+
+	resultUnite.StartFigure();
+	resultUnite.MoveTo(233, 160);
+	resultUnite.CurveTo(233, 189.867, 219.906, 216.676, 199.146, 235);
+	resultUnite.LineTo(208.5, 235);
+	resultUnite.LineTo(208.5, 255.5);
+	resultUnite.LineTo(188, 255.5);
+	resultUnite.LineTo(188, 276);
+	resultUnite.LineTo(167.5, 276);
+	resultUnite.LineTo(167.5, 255.5);
+	resultUnite.LineTo(162.75, 255.5);
+	resultUnite.CurveTo(153.353, 258.424, 143.36, 260, 133, 260);
+	resultUnite.CurveTo(77.7715, 260, 33, 215.228, 33, 160);
+	resultUnite.CurveTo(33, 104.772, 77.7715, 60, 133, 60);
+	resultUnite.CurveTo(188.228, 60, 233, 104.772, 233, 160);
+	resultUnite.CloseFigure();
+
+	resultSubtract.StartFigure();
+	resultSubtract.MoveTo(233, 160);
+	resultSubtract.CurveTo(233, 189.867, 219.906, 216.676, 199.146, 235);
+	resultSubtract.LineTo(188, 235);
+	resultSubtract.LineTo(188, 214.5);
+	resultSubtract.LineTo(167.5, 214.5);
+	resultSubtract.LineTo(167.5, 235);
+	resultSubtract.LineTo(147, 235);
+	resultSubtract.LineTo(147, 255.5);
+	resultSubtract.LineTo(162.75, 255.5);
+	resultSubtract.CurveTo(153.353, 258.424, 143.36, 260, 133, 260);
+	resultSubtract.CurveTo(77.7715, 260, 33, 215.228, 33, 160);
+	resultSubtract.CurveTo(33, 104.772, 77.7715, 60, 133, 60);
+	resultSubtract.CurveTo(188.228, 60, 233, 104.772, 233, 160);
+	resultSubtract.CloseFigure();
+
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Intersection) == resultIntersect);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Union) == resultUnite);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Subtraction) == resultSubtract);
+}
+
+TEST(BooleanOperations, TriangleIntersEllipse)
+{
+	Aggplus::CGraphicsPath path1, path2, resultIntersect, resultUnite, resultSubtract;
+
+	path1.StartFigure();
+	path1.MoveTo(227, 157);
+	path1.LineTo(327, 357);
+	path1.LineTo(127, 257);
+	path1.LineTo(227, 157);
+	path1.CloseFigure();
+
+	path2.AddEllipse(64, 119, 200, 200);
+
+	resultIntersect.StartFigure();
+	resultIntersect.MoveTo(227, 157);
+	resultIntersect.LineTo(263.419, 229.839);
+	resultIntersect.CurveTo(260.127, 260.386, 243.078, 286.812, 218.593, 302.797);
+	resultIntersect.LineTo(127, 257);
+	resultIntersect.LineTo(227, 157);
+	resultIntersect.CloseFigure();
+
+	resultUnite.StartFigure();
+	resultUnite.MoveTo(263.419, 229.839);
+	resultUnite.LineTo(327, 357);
+	resultUnite.LineTo(218.593, 302.797);
+	resultUnite.CurveTo(202.897, 313.044, 184.144, 319, 164, 319);
+	resultUnite.CurveTo(108.772, 319, 64, 274.228, 64, 219);
+	resultUnite.CurveTo(64, 163.772, 108.772, 119, 164, 119);
+	resultUnite.CurveTo(219.228, 119, 264, 163.772, 264, 219);
+	resultUnite.CurveTo(264, 222.662, 263.803, 226.279, 263.419, 229.839);
+	resultUnite.CloseFigure();
+
+	resultSubtract.StartFigure();
+	resultSubtract.MoveTo(263.419, 229.839);
+	resultSubtract.LineTo(327, 357);
+	resultSubtract.LineTo(218.593, 302.797);
+	resultSubtract.CurveTo(243.078, 286.812, 260.127, 260.386, 263.419, 229.839);
+	resultSubtract.CloseFigure();
+
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Intersection) == resultIntersect);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Union) == resultUnite);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Subtraction) == resultSubtract);
+}
+
+TEST(BooleanOperations, TwoVerticesInters)
+{
+	Aggplus::CGraphicsPath path1, path2, resultIntersect, resultUnite, resultSubtract;
+
+	path1.StartFigure();
+	path1.MoveTo(-300, -300);
+	path1.LineTo(-100, -300);
+	path1.LineTo(-100, -100);
+	path1.LineTo(-300, -100);
+	path1.LineTo(-300, -300);
+	path1.CloseFigure();
+
+	path2.StartFigure();
+	path2.MoveTo(-100, -200);
+	path2.LineTo(0, 0);
+	path2.LineTo(-200, -100);
+	path2.LineTo(-100, -200);
+	path2.CloseFigure();
+
+	resultIntersect.StartFigure();
+	resultIntersect.MoveTo(-100, -200);
+	resultIntersect.LineTo(-100, -100);
+	resultIntersect.LineTo(-200, -100);
+	resultIntersect.LineTo(-100, -200);
+	resultIntersect.CloseFigure();
+
+	resultUnite.StartFigure();
+	resultUnite.MoveTo(-300, -300);
+	resultUnite.LineTo(-100, -300);
+	resultUnite.LineTo(-100, -200);
+	resultUnite.LineTo(0, 0);
+	resultUnite.LineTo(-200, -100);
+	resultUnite.LineTo(-300, -100);
+	resultUnite.LineTo(-300, -300);
+	resultUnite.CloseFigure();
+
+	resultSubtract.StartFigure();
+	resultSubtract.MoveTo(-300, -300);
+	resultSubtract.LineTo(-100, -300);
+	resultSubtract.LineTo(-100, -200);
+	resultSubtract.LineTo(-200, -100);
+	resultSubtract.LineTo(-300, -100);
+	resultSubtract.LineTo(-300, -300);
+	resultSubtract.CloseFigure();
+
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Intersection) == resultIntersect);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Union) == resultUnite);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Subtraction) == resultSubtract);
+}
+
+TEST(BooleanOperations, RectIntersEllipse)
+{
+	Aggplus::CGraphicsPath path1, path2, resultIntersect, resultUnite, resultSubtract;
+
+	path1.StartFigure();
+	path1.MoveTo(60, 45);
+	path1.LineTo(260, 45);
+	path1.LineTo(260, 245);
+	path1.LineTo(60, 245);
+	path1.LineTo(60, 45);
+	path1.CloseFigure();
+
+	path2.AddEllipse(138, 147, 128, 128);
+
+	resultIntersect.StartFigure();
+	resultIntersect.MoveTo(260, 183.908);
+	resultIntersect.LineTo(260, 238.092);
+	resultIntersect.CurveTo(258.883, 240.478, 257.623, 242.785, 256.232, 245);
+	resultIntersect.LineTo(147.768, 245);
+	resultIntersect.CurveTo(141.579, 235.149, 138, 223.493, 138, 211);
+	resultIntersect.CurveTo(138, 175.654, 166.654, 147, 202, 147);
+	resultIntersect.CurveTo(227.663, 147, 249.798, 162.105, 260, 183.908);
+	resultIntersect.CloseFigure();
+
+	resultUnite.StartFigure();
+	resultUnite.MoveTo(60, 45);
+	resultUnite.LineTo(260, 45);
+	resultUnite.LineTo(260, 183.908);
+	resultUnite.CurveTo(263.849, 192.136, 266, 201.317, 266, 211);
+	resultUnite.CurveTo(266, 220.683, 263.849, 229.864, 260, 238.092);
+	resultUnite.LineTo(260, 245);
+	resultUnite.LineTo(256.232, 245);
+	resultUnite.CurveTo(244.91, 263.021, 224.854, 275, 202, 275);
+	resultUnite.CurveTo(179.146, 275, 159.09, 263.021, 147.768, 245);
+	resultUnite.LineTo(60, 245);
+	resultUnite.LineTo(60, 45);
+	resultUnite.CloseFigure();
+
+	resultSubtract.StartFigure();
+	resultSubtract.MoveTo(60, 45);
+	resultSubtract.LineTo(260, 45);
+	resultSubtract.LineTo(260, 183.908);
+	resultSubtract.CurveTo(249.798, 162.105, 227.663, 147, 202, 147);
+	resultSubtract.CurveTo(166.654, 147, 138, 175.654, 138, 211);
+	resultSubtract.CurveTo(138, 223.493, 141.579, 235.149, 147.768, 245);
+	resultSubtract.LineTo(60, 245);
+	resultSubtract.LineTo(60, 45);
+	resultSubtract.MoveTo(260, 238.092);
+	resultSubtract.LineTo(260, 245);
+	resultSubtract.LineTo(256.232, 245);
+	resultSubtract.CurveTo(257.623, 242.785, 258.883, 240.478, 260, 238.092);
+	resultSubtract.CloseFigure();
+
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Intersection) == resultIntersect);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Union) == resultUnite);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Subtraction) == resultSubtract);
+}
+
+TEST(BooleanOperations, RectIntersCross)
+{
+	Aggplus::CGraphicsPath path1, path2, resultIntersect, resultUnite, resultSubtract;
+
+	path1.StartFigure();
+	path1.MoveTo(-147, -176);
+	path1.LineTo(53, -176);
+	path1.LineTo(53, 24);
+	path1.LineTo(-147, 24);
+	path1.LineTo(-147, -176);
+	path1.CloseFigure();
+
+	path2.StartFigure();
+	path2.MoveTo(-171, -111);
+	path2.LineTo(-89.5, -111);
+	path2.LineTo(-89.5, -192.5);
+	path2.LineTo(-8, -192.5);
+	path2.LineTo(-8, -111);
+	path2.LineTo(73.5, -111);
+	path2.LineTo(73.5, -29.5);
+	path2.LineTo(-8, -29.5);
+	path2.LineTo(-8, 52);
+	path2.LineTo(-89.5, 52);
+	path2.LineTo(-89.5, -29.5);
+	path2.LineTo(-171, -29.5);
+	path2.LineTo(-171, -111);
+	path2.CloseFigure();
+
+	resultIntersect.StartFigure();
+	resultIntersect.MoveTo(-89.5, -176);
+	resultIntersect.LineTo(-8, -176);
+	resultIntersect.LineTo(-8, -111);
+	resultIntersect.LineTo(53, -111);
+	resultIntersect.LineTo(53, -29.5);
+	resultIntersect.LineTo(-8, -29.5);
+	resultIntersect.LineTo(-8, 24);
+	resultIntersect.LineTo(-89.5, 24);
+	resultIntersect.LineTo(-89.5, -29.5);
+	resultIntersect.LineTo(-147, -29.5);
+	resultIntersect.LineTo(-147, -111);
+	resultIntersect.LineTo(-89.5, -111);
+	resultIntersect.LineTo(-89.5, -176);
+	resultIntersect.CloseFigure();
+
+	resultUnite.StartFigure();
+	resultUnite.MoveTo(-147, -176);
+	resultUnite.LineTo(-89.5, -176);
+	resultUnite.LineTo(-89.5, -192.5);
+	resultUnite.LineTo(-8, -192.5);
+	resultUnite.LineTo(-8, -176);
+	resultUnite.LineTo(53, -176);
+	resultUnite.LineTo(53, -111);
+	resultUnite.LineTo(73.5, -111);
+	resultUnite.LineTo(73.5, -29.5);
+	resultUnite.LineTo(53, -29.5);
+	resultUnite.LineTo(53, 24);
+	resultUnite.LineTo(-8, 24);
+	resultUnite.LineTo(-8, 52);
+	resultUnite.LineTo(-89.5, 52);
+	resultUnite.LineTo(-89.5, 24);
+	resultUnite.LineTo(-147, 24);
+	resultUnite.LineTo(-147, -29.5);
+	resultUnite.LineTo(-171, -29.5);
+	resultUnite.LineTo(-171, -111);
+	resultUnite.LineTo(-147, -111);
+	resultUnite.LineTo(-147, -176);
+	resultUnite.CloseFigure();
+
+	resultSubtract.StartFigure();
+	resultSubtract.MoveTo(-147, -176);
+	resultSubtract.LineTo(-89.5, -176);
+	resultSubtract.LineTo(-89.5, -111);
+	resultSubtract.LineTo(-147, -111);
+	resultSubtract.LineTo(-147, -176);
+	resultSubtract.MoveTo(-8, -176);
+	resultSubtract.LineTo(53, -176);
+	resultSubtract.LineTo(53, -111);
+	resultSubtract.LineTo(-8, -111);
+	resultSubtract.LineTo(-8, -176);
+	resultSubtract.MoveTo(53, -29.5);
+	resultSubtract.LineTo(53, 24);
+	resultSubtract.LineTo(-8, 24);
+	resultSubtract.LineTo(-8, -29.5);
+	resultSubtract.LineTo(53, -29.5);
+	resultSubtract.MoveTo(-89.5, 24);
+	resultSubtract.LineTo(-147, 24);
+	resultSubtract.LineTo(-147, -29.5);
+	resultSubtract.LineTo(-89.5, -29.5);
+	resultSubtract.LineTo(-89.5, 24);
+	resultSubtract.CloseFigure();
+
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Intersection) == resultIntersect);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Union) == resultUnite);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Subtraction) == resultSubtract);
+}
+
+TEST(BooleanOperations, CrossIntersTriangle)
+{
+	Aggplus::CGraphicsPath path1, path2, resultIntersect, resultUnite, resultSubtract;
+
+	path1.StartFigure();
+	path1.MoveTo(-93, -87);
+	path1.LineTo(-2.5, -87);
+	path1.LineTo(-2.5, -177.5);
+	path1.LineTo(88, -177.5);
+	path1.LineTo(88, -87);
+	path1.LineTo(178.5, -87);
+	path1.LineTo(178.5, 3.5);
+	path1.LineTo(88, 3.5);
+	path1.LineTo(88, 94);
+	path1.LineTo(-2.5, 94);
+	path1.LineTo(-2.5, 3.5);
+	path1.LineTo(-93, 3.5);
+	path1.LineTo(-93, -87);
+	path1.CloseFigure();
+
+	path2.StartFigure();
+	path2.MoveTo(36, -193);
+	path2.LineTo(181, 97);
+	path2.LineTo(-109, -48);
+	path2.LineTo(36, -193);
+	path2.CloseFigure();
+
+	resultIntersect.StartFigure();
+	resultIntersect.MoveTo(-70, -87);
+	resultIntersect.LineTo(-2.5, -87);
+	resultIntersect.LineTo(-2.5, -154.5);
+	resultIntersect.LineTo(20.5, -177.5);
+	resultIntersect.LineTo(43.75, -177.5);
+	resultIntersect.LineTo(88, -89);
+	resultIntersect.LineTo(88, -87);
+	resultIntersect.LineTo(89, -87);
+	resultIntersect.LineTo(134.25, 3.5);
+	resultIntersect.LineTo(88, 3.5);
+	resultIntersect.LineTo(88, 50.5);
+	resultIntersect.LineTo(-2.5, 5.25);
+	resultIntersect.LineTo(-2.5, 3.5);
+	resultIntersect.LineTo(-6, 3.5);
+	resultIntersect.LineTo(-93, -40);
+	resultIntersect.LineTo(-93, -64);
+	resultIntersect.LineTo(-70, -87);
+	resultIntersect.CloseFigure();
+
+	resultUnite.StartFigure();
+	resultUnite.MoveTo(-93, -87);
+	resultUnite.LineTo(-70, -87);
+	resultUnite.LineTo(-2.5, -154.5);
+	resultUnite.LineTo(-2.5, -177.5);
+	resultUnite.LineTo(20.5, -177.5);
+	resultUnite.LineTo(36, -193);
+	resultUnite.LineTo(43.75, -177.5);
+	resultUnite.LineTo(88, -177.5);
+	resultUnite.LineTo(88, -89);
+	resultUnite.LineTo(89, -87);
+	resultUnite.LineTo(178.5, -87);
+	resultUnite.LineTo(178.5, 3.5);
+	resultUnite.LineTo(134.25, 3.5);
+	resultUnite.LineTo(181, 97);
+	resultUnite.LineTo(88, 50.5);
+	resultUnite.LineTo(88, 94);
+	resultUnite.LineTo(-2.5, 94);
+	resultUnite.LineTo(-2.5, 5.25);
+	resultUnite.LineTo(-6, 3.5);
+	resultUnite.LineTo(-93, 3.5);
+	resultUnite.LineTo(-93, -40);
+	resultUnite.LineTo(-109, -48);
+	resultUnite.LineTo(-93, -64);
+	resultUnite.LineTo(-93, -87);
+	resultUnite.CloseFigure();
+
+	resultSubtract.StartFigure();
+	resultSubtract.MoveTo(-93, -87);
+	resultSubtract.LineTo(-70, -87);
+	resultSubtract.LineTo(-93, -64);
+	resultSubtract.LineTo(-93, -87);
+	resultSubtract.MoveTo(-2.5, -154.5);
+	resultSubtract.LineTo(-2.5, -177.5);
+	resultSubtract.LineTo(20.5, -177.5);
+	resultSubtract.LineTo(-2.5, -154.5);
+	resultSubtract.MoveTo(43.75, -177.5);
+	resultSubtract.LineTo(88, -177.5);
+	resultSubtract.LineTo(88, -89);
+	resultSubtract.LineTo(43.75, -177.5);
+	resultSubtract.MoveTo(89, -87);
+	resultSubtract.LineTo(178.5, -87);
+	resultSubtract.LineTo(178.5, 3.5);
+	resultSubtract.LineTo(134.25, 3.5);
+	resultSubtract.LineTo(89, -87);
+	resultSubtract.MoveTo(88, 50.5);
+	resultSubtract.LineTo(88, 94);
+	resultSubtract.LineTo(-2.5, 94);
+	resultSubtract.LineTo(-2.5, 5.25);
+	resultSubtract.LineTo(88, 50.5);
+	resultSubtract.MoveTo(-6, 3.5);
+	resultSubtract.LineTo(-93, 3.5);
+	resultSubtract.LineTo(-93, -40);
+	resultSubtract.LineTo(-6, 3.5);
+	resultSubtract.CloseFigure();
+
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Intersection) == resultIntersect);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Union) == resultUnite);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Subtraction) == resultSubtract);
+}
+
+TEST(BooleanOperations, CrossIntersCross)
+{
+	Aggplus::CGraphicsPath path1, path2, resultIntersect, resultUnite, resultSubtract;
+
+	path1.StartFigure();
+	path1.MoveTo(-161, -129);
+	path1.LineTo(-99, -129);
+	path1.LineTo(-99, -191);
+	path1.LineTo(-37, -191);
+	path1.LineTo(-37, -129);
+	path1.LineTo(25, -129);
+	path1.LineTo(25, -67);
+	path1.LineTo(-37, -67);
+	path1.LineTo(-37, -5);
+	path1.LineTo(-99, -5);
+	path1.LineTo(-99, -67);
+	path1.LineTo(-161, -67);
+	path1.LineTo(-161, -129);
+	path1.CloseFigure();
+
+	path2.StartFigure();
+	path2.MoveTo(-172, -191);
+	path2.LineTo(-122, -191);
+	path2.LineTo(-122, -241);
+	path2.LineTo(-72, -241);
+	path2.LineTo(-72, -191);
+	path2.LineTo(-22, -191);
+	path2.LineTo(-22, -141);
+	path2.LineTo(-72, -141);
+	path2.LineTo(-72, -91);
+	path2.LineTo(-122, -91);
+	path2.LineTo(-122, -141);
+	path2.LineTo(-172, -141);
+	path2.LineTo(-172, -191);
+	path2.CloseFigure();
+
+	resultIntersect.StartFigure();
+	resultIntersect.MoveTo(-122, -129);
+	resultIntersect.LineTo(-99, -129);
+	resultIntersect.LineTo(-99, -191);
+	resultIntersect.LineTo(-72, -191);
+	resultIntersect.LineTo(-37, -191);
+	resultIntersect.LineTo(-37, -141);
+	resultIntersect.LineTo(-72, -141);
+	resultIntersect.LineTo(-72, -91);
+	resultIntersect.LineTo(-122, -91);
+	resultIntersect.LineTo(-122, -129);
+	resultIntersect.CloseFigure();
+
+	resultUnite.StartFigure();
+	resultUnite.MoveTo(-161, -129);
+	resultUnite.LineTo(-122, -129);
+	resultUnite.LineTo(-122, -141);
+	resultUnite.LineTo(-172, -141);
+	resultUnite.LineTo(-172, -191);
+	resultUnite.LineTo(-122, -191);
+	resultUnite.LineTo(-122, -241);
+	resultUnite.LineTo(-72, -241);
+	resultUnite.LineTo(-72, -191);
+	resultUnite.LineTo(-37, -191);
+	resultUnite.LineTo(-22, -191);
+	resultUnite.LineTo(-22, -141);
+	resultUnite.LineTo(-37, -141);
+	resultUnite.LineTo(-37, -129);
+	resultUnite.LineTo(25, -129);
+	resultUnite.LineTo(25, -67);
+	resultUnite.LineTo(-37, -67);
+	resultUnite.LineTo(-37, -5);
+	resultUnite.LineTo(-99, -5);
+	resultUnite.LineTo(-99, -67);
+	resultUnite.LineTo(-161, -67);
+	resultUnite.LineTo(-161, -129);
+	resultUnite.CloseFigure();
+
+	resultSubtract.StartFigure();
+	resultSubtract.MoveTo(-161, -129);
+	resultSubtract.LineTo(-122, -129);
+	resultSubtract.LineTo(-122, -91);
+	resultSubtract.LineTo(-72, -91);
+	resultSubtract.LineTo(-72, -141);
+	resultSubtract.LineTo(-37, -141);
+	resultSubtract.LineTo(-37, -129);
+	resultSubtract.LineTo(25, -129);
+	resultSubtract.LineTo(25, -67);
+	resultSubtract.LineTo(-37, -67);
+	resultSubtract.LineTo(-37, -5);
+	resultSubtract.LineTo(-99, -5);
+	resultSubtract.LineTo(-99, -67);
+	resultSubtract.LineTo(-161, -67);
+	resultSubtract.LineTo(-161, -129);
+	resultSubtract.MoveTo(-72, -191);
+	resultSubtract.LineTo(-37, -191);
+	resultSubtract.LineTo(-72, -191);
+	resultSubtract.CloseFigure();
+
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Intersection) == resultIntersect);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Union) == resultUnite);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Subtraction) == resultSubtract);
+}
+
+TEST(BooleanOperations, EllipseTouchEllipse)
+{
+	Aggplus::CGraphicsPath path1, path2, resultIntersect, resultUnite, resultSubtract;
+
+	path1.AddEllipse(43, 88, 200, 200);
+
+	path2.AddEllipse(45, 117, 120, 120);
+
+	resultIntersect.StartFigure();
+	resultIntersect.MoveTo(165, 177);
+	resultIntersect.CurveTo(165, 210.137, 138.137, 237, 105, 237);
+	resultIntersect.CurveTo(71.8629, 237, 45, 210.137, 45, 177);
+	resultIntersect.CurveTo(45, 143.863, 71.8629, 117, 105, 117);
+	resultIntersect.CurveTo(138.137, 117, 165, 143.863, 165, 177);
+	resultIntersect.CloseFigure();
+
+	resultUnite.StartFigure();
+	resultUnite.MoveTo(243, 188);
+	resultUnite.CurveTo(243, 243.228, 198.228, 288, 143, 288);
+	resultUnite.CurveTo(87.7715, 288, 43, 243.228, 43, 188);
+	resultUnite.CurveTo(43, 132.772, 87.7715, 88, 143, 88);
+	resultUnite.CurveTo(198.228, 88, 243, 132.772, 243, 188);
+	resultUnite.CloseFigure();
+
+	resultSubtract.StartFigure();
+	resultSubtract.MoveTo(243, 188);
+	resultSubtract.CurveTo(243, 243.228, 198.228, 288, 143, 288);
+	resultSubtract.CurveTo(87.7715, 288, 43, 243.228, 43, 188);
+	resultSubtract.CurveTo(43, 132.772, 87.7715, 88, 143, 88);
+	resultSubtract.CurveTo(198.228, 88, 243, 132.772, 243, 188);
+	resultSubtract.MoveTo(165, 177);
+	resultSubtract.CurveTo(165, 143.863, 138.137, 117, 105, 117);
+	resultSubtract.CurveTo(71.8629, 117, 45, 143.863, 45, 177);
+	resultSubtract.CurveTo(45, 210.137, 71.8629, 237, 105, 237);
+	resultSubtract.CurveTo(138.137, 237, 165, 210.137, 165, 177);
+	resultSubtract.CloseFigure();
+
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Intersection) == resultIntersect);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Union) == resultUnite);
+	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Subtraction) == resultSubtract);
+}
+
+TEST(BooleanOperations, TriangleOverlapTriangle)
+{
+	Aggplus::CGraphicsPath path1, path2, resultIntersect, resultUnite, resultSubtract;
+
+	path1.StartFigure();
+	path1.MoveTo(-200, -300);
+	path1.LineTo(-100, -100);
+	path1.LineTo(-300, -200);
+	path1.LineTo(-200, -300);
+	path1.CloseFigure();
+
+	path2.StartFigure();
+	path2.MoveTo(-181, -291);
+	path2.LineTo(-81, -91);
+	path2.LineTo(-281, -191);
+	path2.LineTo(-181, -291);
+	path2.CloseFigure();
+
+	resultIntersect.StartFigure();
+	resultIntersect.MoveTo(-190.667, -281.333);
+	resultIntersect.LineTo(-100.333, -100.667);
+	resultIntersect.LineTo(-281, -191);
+	resultIntersect.LineTo(-190.667, -281.333);
+	resultIntersect.CloseFigure();
+
+	resultUnite.StartFigure();
+	resultUnite.MoveTo(-200, -300);
+	resultUnite.LineTo(-190.667, -281.333);
+	resultUnite.LineTo(-181, -291);
+	resultUnite.LineTo(-81, -91);
+	resultUnite.LineTo(-100.333, -100.667);
+	resultUnite.LineTo(-100, -100);
+	resultUnite.LineTo(-300, -200);
+	resultUnite.LineTo(-200, -300);
+	resultUnite.CloseFigure();
+
+	resultSubtract.StartFigure();
+	resultSubtract.MoveTo(-200, -300);
+	resultSubtract.LineTo(-190.667, -281.333);
+	resultSubtract.LineTo(-281, -191);
+	resultSubtract.LineTo(-100.333, -100.667);
+	resultSubtract.LineTo(-100, -100);
+	resultSubtract.LineTo(-300, -200);
+	resultSubtract.LineTo(-200, -300);
+	resultSubtract.CloseFigure();
+
 	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Intersection) == resultIntersect);
 	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Union) == resultUnite);
 	EXPECT_TRUE(Aggplus::CalcBooleanOperation(path1, path2, Aggplus::Subtraction) == resultSubtract);