AIRealMath.h File Reference

#include "AITypes.h"
#include <math.h>
#include <float.h>
#include "AIHeaderBegin.h"
#include "AIHeaderEnd.h"

Go to the source code of this file.

Classes
struct	AIRealMathSuite
	This suite provides functions for working with the AIReal values that Illustrator uses for coordinates. More...
Defines
#define	kAIRealMathSuite   "AI Real Math Suite"
#define	kAIRealMathSuiteVersion   AIAPI_VERSION(4)
#define	kAIRealMathVersion   kAIRealMathSuiteVersion
#define	kAIRealMax   ((AIReal)(DBL_MAX / 10.0F))
#define	kAIRealMin   ((AIReal)-(DBL_MAX / 10.0F))
#define	kAIRealUnknown   ((AIReal)DBL_MAX)
#define	kAIFloatUnknown   ((AIFloat)FLT_MAX)
#define	kAIRealOne   ((AIReal) 1.0)
#define	kAIRealZero   ((AIReal) 0.0)
#define	kAIFloatOne   (1.0f)
#define	kAIFloatZero   (0.0f)
#define	kAIRealHundredth   ((AIReal) 0.01)
#define	kAIRealSixteenth   ((AIReal) (1.0/16.0))
#define	kAIRealTenth   ((AIReal) 0.1)
#define	kAIRealEighth   ((AIReal) 0.125)
#define	kAIRealQuarter   ((AIReal) 0.25)
#define	kAIRealHalf   ((AIReal) 0.5)
#define	kAIRealSevenEighths   ((AIReal) 0.875)
#define	kAIRealOneThird   ((AIReal) (1.0/3.0))
#define	kAIRealTwoThirds   ((AIReal) (2.0/3.0))
#define	kAIRealFourThirds   ((AIReal) (4.0/3.0))
#define	kAIRealThreeHalves   ((AIReal) 1.5)
#define	kAIPi   3.141592653589793238462643383279502884197169399375
#define	kAIDoublePi   ((double) kAIPi)
#define	kAIRealPi   ((AIReal) kAIPi)
#define	kAIRealPi4   ((AIReal) (kAIPi/4.0))
#define	kAIRealPi2   ((AIReal) (kAIPi/2.0))
#define	kAIReal3PiOver2   ((AIReal) (kAIRealThreeHalves*kAIPi))
#define	kAIRealTwoPi   ((AIReal) (kAIPi*2.0))
#define	kAIRealSquareRootOfTwo   ((AIReal) 1.4142135623)
#define	kAIRealSquareRootOfThree   ((AIReal) 1.7320508075688772935274463415059)
#define	kAIRealAvogadrosOther   ((AIReal) 0.5522847498)
#define	kAIRealGolden   ((AIReal) 1.6180339888)
#define	kSmallestFixedNumberEquivalent_Tolerance   ((AIReal) (1.0 / (1 << 16)) )
#define	kAIRealTolerance   kSmallestFixedNumberEquivalent_Tolerance
#define	_AIRealMIN(x, y)   ((x) > (y) ? (y) : (x))
#define	_AIRealMAX(x, y)   ((x) > (y) ? (x) : (y))
#define	_AIRealAbs(x)   ((x) >= kAIRealZero ? (x) : -(x))
#define	_AIRealRound(x)   (AIReal)( (x) > 0 ? floor((x) + 0.5) : ceil((x) - 0.5))
#define	_AIRealTrunc(x)   (AIReal)( (x) > 0 ? floor((x)) : ceil((x)))
#define	_AIRealFloor(x)   (AIReal)floor( x)
#define	_ShortToAIReal(a)   ((AIReal) (a))
#define	_AIRealRoundToShort(a)   ((ai::int16) _AIRealRound(a))
#define	_AIRealTruncToShort(a)   ((ai::int16) _AIRealTrunc(a))
#define	_AIRealFraction(a)   ((AIReal) ((a) - _AIRealTrunc(a)))
#define	_AIRealAverage(a, b)   ((AIReal) (((a) + (b)) / 2.0))
#define	_AIRealHalf(a)   ((AIReal) ((a) / 2.0))
#define	_AIRealOverflow(a)   ((a) == kAIRealMax || (a) == kAIRealMin)
#define	_AIRealSign(a)   ((AIReal) ((a) > 0 ? +1 : ((a) < 0 ? -1 : 0)))

---

Detailed Description

---

Define Documentation

#define _AIRealAbs

(

x

)

((x) >= kAIRealZero ? (x) : -(x))

#define _AIRealAverage	(	a,
		b		)	((AIReal) (((a) + (b)) / 2.0))

#define _AIRealFloor

(

x

)

(AIReal)floor( x)

#define _AIRealFraction

(

a

)

((AIReal) ((a) - _AIRealTrunc(a)))

#define _AIRealHalf

(

a

)

((AIReal) ((a) / 2.0))

#define _AIRealMAX	(	x,
		y		)	((x) > (y) ? (x) : (y))

#define _AIRealMIN	(	x,
		y		)	((x) > (y) ? (y) : (x))

#define _AIRealOverflow

(

a

)

((a) == kAIRealMax || (a) == kAIRealMin)

#define _AIRealRound

(

x

)

(AIReal)( (x) > 0 ? floor((x) + 0.5) : ceil((x) - 0.5))

#define _AIRealRoundToShort

(

a

)

((ai::int16) _AIRealRound(a))

#define _AIRealSign

(

a

)

((AIReal) ((a) > 0 ? +1 : ((a) < 0 ? -1 : 0)))

#define _AIRealTrunc

(

x

)

(AIReal)( (x) > 0 ? floor((x)) : ceil((x)))

#define _AIRealTruncToShort

(

a

)

((ai::int16) _AIRealTrunc(a))

#define _ShortToAIReal

(

a

)

((AIReal) (a))

#define kAIDoublePi   ((double) kAIPi)

#define kAIFloatOne   (1.0f)

#define kAIFloatUnknown   ((AIFloat)FLT_MAX)

#define kAIFloatZero   (0.0f)

#define kAIPi   3.141592653589793238462643383279502884197169399375

#define kAIReal3PiOver2   ((AIReal) (kAIRealThreeHalves*kAIPi))

#define kAIRealAvogadrosOther   ((AIReal) 0.5522847498)

#define kAIRealEighth   ((AIReal) 0.125)

#define kAIRealFourThirds   ((AIReal) (4.0/3.0))

#define kAIRealGolden   ((AIReal) 1.6180339888)

#define kAIRealHalf   ((AIReal) 0.5)

#define kAIRealHundredth   ((AIReal) 0.01)

#define kAIRealMathSuite   "AI Real Math Suite"

#define kAIRealMathSuiteVersion   AIAPI_VERSION(4)

#define kAIRealMathVersion   kAIRealMathSuiteVersion

#define kAIRealMax   ((AIReal)(DBL_MAX / 10.0F))

#define kAIRealMin   ((AIReal)-(DBL_MAX / 10.0F))

#define kAIRealOne   ((AIReal) 1.0)

#define kAIRealOneThird   ((AIReal) (1.0/3.0))

#define kAIRealPi   ((AIReal) kAIPi)

#define kAIRealPi2   ((AIReal) (kAIPi/2.0))

#define kAIRealPi4   ((AIReal) (kAIPi/4.0))

#define kAIRealQuarter   ((AIReal) 0.25)

#define kAIRealSevenEighths   ((AIReal) 0.875)

#define kAIRealSixteenth   ((AIReal) (1.0/16.0))

#define kAIRealSquareRootOfThree   ((AIReal) 1.7320508075688772935274463415059)

#define kAIRealSquareRootOfTwo   ((AIReal) 1.4142135623)

#define kAIRealTenth   ((AIReal) 0.1)

#define kAIRealThreeHalves   ((AIReal) 1.5)

#define kAIRealTolerance   kSmallestFixedNumberEquivalent_Tolerance

#define kAIRealTwoPi   ((AIReal) (kAIPi*2.0))

#define kAIRealTwoThirds   ((AIReal) (2.0/3.0))

#define kAIRealUnknown   ((AIReal)DBL_MAX)

Referenced by AIArtStylePaintData::InitFillToUnknown(), and AIArtStylePaintData::InitStrokeToUnknown().

#define kAIRealZero   ((AIReal) 0.0)

Referenced by AICursorConstraint::AICursorConstraint(), AIStrokeStyle::Init(), AIDashStyle::Init(), AIGradientStop::Init(), and AIGradientStyle::Init().

#define kSmallestFixedNumberEquivalent_Tolerance   ((AIReal) (1.0 / (1 << 16)) )