mirror of https://github.com/GNOME/gimp.git
26 lines
757 B
C
26 lines
757 B
C
#ifndef ARCBALLH
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#define ARCBALLH
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typedef struct {double x, y, z, w;} Quat;
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enum QuatPart {X, Y, Z, W, QuatLen};
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typedef Quat HVect;
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typedef double HMatrix[QuatLen][QuatLen];
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typedef enum AxisSet{NoAxes, CameraAxes, BodyAxes, OtherAxes, NSets} AxisSet;
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typedef double *ConstraintSet;
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extern Quat qOne;
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extern void ArcBall_Init();
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extern void ArcBall_Place(HVect Center, double Radius);
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extern void ArcBall_UseSet(AxisSet axis_Set);
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extern void ArcBall_Update(void);
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extern void ArcBall_Value(HMatrix m_Now);
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extern void ArcBall_Values(double *alpha,double *beta,double *gamma);
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extern void ArcBall_BeginDrag(void);
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extern void ArcBall_EndDrag(void);
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extern void ArcBall_Mouse(HVect v_Now);
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extern void ArcBall_CopyMat(HMatrix inm,HMatrix outm);
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#endif
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