fttrigon.h File Reference

Go to the source code of this file.

Macros
#define	FT_ANGLE_PI   ( 180L << 16 )
#define	FT_ANGLE_2PI   ( FT_ANGLE_PI * 2 )
#define	FT_ANGLE_PI2   ( FT_ANGLE_PI / 2 )
#define	FT_ANGLE_PI4   ( FT_ANGLE_PI / 4 )

Functions
	FT_Sin (FT_Angle angle)
	FT_Cos (FT_Angle angle)
	FT_Tan (FT_Angle angle)
	FT_Atan2 (FT_Fixed x, FT_Fixed y)
	FT_Angle_Diff (FT_Angle angle1, FT_Angle angle2)
	FT_Vector_Unit (FT_Vector *vec, FT_Angle angle)
	FT_Vector_Rotate (FT_Vector *vec, FT_Angle angle)
	FT_Vector_Length (FT_Vector *vec)
	FT_Vector_Polarize (FT_Vector *vec, FT_Fixed *length, FT_Angle *angle)
	FT_Vector_From_Polar (FT_Vector *vec, FT_Fixed length, FT_Angle angle)

Variables
FT_BEGIN_HEADER typedef FT_Fixed	FT_Angle

Macro Definition Documentation

FT_ANGLE_2PI

#define FT_ANGLE_2PI   ( FT_ANGLE_PI * 2 )

Definition at line 76 of file fttrigon.h.

Referenced by FT_Angle_Diff().

FT_ANGLE_PI

#define FT_ANGLE_PI   ( 180L << 16 )

Definition at line 64 of file fttrigon.h.

Referenced by FT_Angle_Diff().

FT_ANGLE_PI2

#define FT_ANGLE_PI2   ( FT_ANGLE_PI / 2 )

Definition at line 88 of file fttrigon.h.

Referenced by FT_Sin(), and FT_Stroker_LineTo().

FT_ANGLE_PI4

#define FT_ANGLE_PI4   ( FT_ANGLE_PI / 4 )

Definition at line 100 of file fttrigon.h.

Function Documentation

FT_Angle_Diff()

FT_Angle_Diff	(	FT_Angle	angle1,
		FT_Angle	angle2
	)

Definition at line 475 of file fttrigon.c.

References cordic::angle2, FT_Angle, FT_ANGLE_2PI, and FT_ANGLE_PI.

FT_Atan2()

FT_Atan2	(	FT_Fixed	x,
		FT_Fixed	y
	)

Definition at line 319 of file fttrigon.c.

References FT_Vector_::x, and FT_Vector_::y.

Referenced by FT_Outline_Transform(), and FT_Stroker_LineTo().

FT_Cos()

FT_Cos

(

FT_Angle

angle

)

Definition at line 278 of file fttrigon.c.

References FT_TRIG_SCALE, FT_Vector_::x, and FT_Vector_::y.

Referenced by FT_Sin().

FT_Sin()

FT_Sin

(

FT_Angle

angle

)

Definition at line 294 of file fttrigon.c.

References FT_ANGLE_PI2, FT_Cos(), and FT_EXPORT_DEF.

FT_Tan()

FT_Tan

(

FT_Angle

angle

)

Definition at line 303 of file fttrigon.c.

References FT_TRIG_SCALE, FT_Vector_::x, and FT_Vector_::y.

FT_Vector_From_Polar()

FT_Vector_From_Polar	(	FT_Vector *	vec,
		FT_Fixed	length,
		FT_Angle	angle
	)

Definition at line 461 of file fttrigon.c.

References FT_Angle, FT_EXPORT_DEF, FT_Vector_Rotate(), FT_Vector_::x, and FT_Vector_::y.

Referenced by FT_Stroker_LineTo().

FT_Vector_Length()

FT_Vector_Length

(

FT_Vector *

vec

)

Definition at line 400 of file fttrigon.c.

References FT_ABS, vec, FT_Vector_::x, and FT_Vector_::y.

Referenced by FT_Hypot(), FT_Outline_EmboldenXY(), and FT_Stroker_LineTo().

FT_Vector_Polarize()

FT_Vector_Polarize	(	FT_Vector *	vec,
		FT_Fixed *	length,
		FT_Angle *	angle
	)

Definition at line 434 of file fttrigon.c.

References vec, FT_Vector_::x, and FT_Vector_::y.

FT_Vector_Rotate()

FT_Vector_Rotate	(	FT_Vector *	vec,
		FT_Angle	angle
	)

Definition at line 362 of file fttrigon.c.

References FT_Vector_::x, and FT_Vector_::y.

Referenced by FT_Vector_From_Polar().

FT_Vector_Unit()

FT_Vector_Unit	(	FT_Vector *	vec,
		FT_Angle	angle
	)

Definition at line 340 of file fttrigon.c.

References FT_TRIG_SCALE, FT_Vector_::x, and FT_Vector_::y.

Variable Documentation

FT_Angle

FT_BEGIN_HEADER typedef FT_Fixed FT_Angle

Definition at line 52 of file fttrigon.h.

Referenced by FT_Angle_Diff(), FT_Stroker_ConicTo(), FT_Stroker_CubicTo(), FT_Stroker_LineTo(), and FT_Vector_From_Polar().