8dcf114db9
M Intersection/DataTypes.cpp M Intersection/QuadraticIntersection_Test.cpp M Intersection/EdgeWalker.cpp M Intersection/LineQuadraticIntersection_Test.cpp M Intersection/LineIntersection_Test.cpp M Intersection/LineIntersection.cpp D Intersection/edge.xcodeproj M Intersection/SimplifyFindTop_Test.cpp M Intersection/DataTypes.h A Intersection/SimplifyRect4x4_Test.cpp M Intersection/CubicIntersection_Test.cpp M Intersection/QuadraticUtilities.h M Intersection/LineCubicIntersection_Test.cpp A Intersection/CurveUtilities.h M Intersection/QuadraticBezierClip.cpp M Intersection/QuadraticBounds.cpp M Intersection/LineUtilities.h M Intersection/Intersection_Tests.cpp M Intersection/Simplify.cpp M Intersection/EdgeWalker_TestUtility.cpp M Intersection/QuadraticUtilities.cpp M Intersection/thingsToDo.txt M Intersection/LineUtilities.cpp M Intersection/CubicUtilities.h M Intersection/SimplifyFindNext_Test.cpp M Intersection/Intersection_Tests.h M Intersection/CubicBezierClip.cpp M Intersection/ActiveEdge_Test.cpp M Intersection/CubicBounds.cpp M Intersection/Simplify.h M Intersection/SimplifyNew_Test.cpp M Intersection/EdgeWalker_Test.h M Intersection/CubicUtilities.cpp M Intersection/op.htm M Intersection/ConvexHull.cpp D Intersection/RectUtilities.cpp M Intersection/SimplifyAddIntersectingTs_Test.cpp git-svn-id: http://skia.googlecode.com/svn/trunk@4429 2bbb7eff-a529-9590-31e7-b0007b416f81
13 lines
620 B
C
13 lines
620 B
C
#include "DataTypes.h"
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double cube_root(double x);
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void coefficients(const double* cubic, double& A, double& B, double& C, double& D);
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int cubicRoots(double A, double B, double C, double D, double t[3]);
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double derivativeAtT(const double* cubic, double t);
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// competing version that should produce same results
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double derivativeAtT_2(const double* cubic, double t);
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void dxdy_at_t(const Cubic& , double t, double& x, double& y);
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bool rotate(const Cubic& cubic, int zero, int index, Cubic& rotPath);
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double secondDerivativeAtT(const double* cubic, double t);
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void xy_at_t(const Cubic& , double t, double& x, double& y);
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