OdGiNoiseGenerator Class Reference

#include <GiNoiseGenerator.h>

Inheritance diagram for OdGiNoiseGenerator:

Public Member Functions
	ODRX_DECLARE_MEMBERS (OdGiNoiseGenerator)
virtual void	initSeed (OdUInt32 seed)=0
virtual double	noise1d (double point) const =0
virtual double	noise2d (const OdGePoint2d &point) const =0
virtual double	noise3d (const OdGePoint3d &point) const =0
virtual double	noise (double point[], OdInt32 len) const =0
virtual double	turbulence (const OdGePoint3d &point, double freq) const =0
virtual double	oNoise (const OdGePoint3d &point, double freq) const =0
virtual double	fBm (const OdGePoint3d &point, double H, double lacunarity, double octaves) const =0
Public Member Functions inherited from OdRxObject
	ODRX_HEAP_OPERATORS ()
	OdRxObject ()
virtual	~OdRxObject ()
virtual OdRxObject *	queryX (const OdRxClass *pClass) const
virtual OdRxObject *	x (const OdRxClass *pClass) const
virtual OdRxClass *	isA () const
virtual void	addRef ()=0
virtual void	release ()=0
virtual long	numRefs () const
bool	isKindOf (const OdRxClass *pClass) const
virtual OdRxObjectPtr	clone () const
virtual void	copyFrom (const OdRxObject *pSource)
virtual OdRx::Ordering	comparedTo (const OdRxObject *pOther) const
virtual bool	isEqualTo (const OdRxObject *pOther) const

Static Public Member Functions
static OdSmartPtr< OdGiNoiseGenerator >	createObject (OdUInt32 seed)
Static Public Member Functions inherited from OdRxObject
static OdRxObjectPtr	cast (const OdRxObject *pointer)
static OdRxClass *	desc ()

Detailed Description

Noise generator for procedural textures generation (based on Perlin noise).

See also

TD_Gi

<group OdGi_Classes>

Definition at line 46 of file GiNoiseGenerator.h.

Member Function Documentation

createObject()

static OdSmartPtr< OdGiNoiseGenerator > OdGiNoiseGenerator::createObject ( OdUInt32  seed )

static

Create OdGiNoiseGenerator, initialized by specified seed.

Parameters

seed	[in] Random number generator seed.

fBm()

virtual double OdGiNoiseGenerator::fBm ( const OdGePoint3d &  point, double  H, double  lacunarity, double  octaves  ) const

pure virtual

Fractal brownian motion.

Parameters

point	[in] 3D input point location.
H	[in] Range fractal dimension 1.0 - 0.0 where 0.0 is total chaos.
lacunarity	[in] Gap between successive frequencies, use 2.0.
octaves	[in] Number of frequencies in the fBm. 3 - 7.

Returns

values between -1.0 and 1.0.

initSeed()

virtual void OdGiNoiseGenerator::initSeed ( OdUInt32  seed )

pure virtual

Initializes noise generation tables to specified seed.

Parameters

seed	[in] Random number generator seed.

Remarks

generator provides unique noise pattern generation for each different seed.

noise()

virtual double OdGiNoiseGenerator::noise ( double  point[], OdInt32  len  ) const

pure virtual

General noise function calls the previous 3 depending on len. Input range from 0 to 3.

Parameters

point	[in] 1D, 2D or 3D point location.
len	[in] Point dimensions.

Returns

values between -1.0 and 1.0.

noise1d()

virtual double OdGiNoiseGenerator::noise1d ( double  point ) const

pure virtual

Generates noise value for a 1D location.

Parameters

point

[in] 1D point location.

Returns

values between -1.0 and 1.0.

noise2d()

virtual double OdGiNoiseGenerator::noise2d ( const OdGePoint2d &  point ) const

pure virtual

Generates noise value for a 2D location.

Parameters

point

[in] 2D point location.

Returns

values between -1.0 and 1.0.

noise3d()

virtual double OdGiNoiseGenerator::noise3d ( const OdGePoint3d &  point ) const

pure virtual

Generates noise value for a 3D location.

Parameters

point

[in] 3D point location.

Returns

values between -1.0 and 1.0.

ODRX_DECLARE_MEMBERS()

OdGiNoiseGenerator::ODRX_DECLARE_MEMBERS

(

OdGiNoiseGenerator

)

oNoise()

virtual double OdGiNoiseGenerator::oNoise ( const OdGePoint3d &  point, double  freq  ) const

pure virtual

Noise across a number of octaves.

Parameters

point	[in] 3D input point location.
freq	[in] Turbulence frequency.

Returns

values between -1.0 and 1.0.

turbulence()

virtual double OdGiNoiseGenerator::turbulence ( const OdGePoint3d &  point, double  freq  ) const

pure virtual

Generates turbulent noise across a number of octaves.

Parameters

point	[in] 3D input point location.
freq	[in] Turbulence frequency.

Returns

values between -1.0 and 1.0.

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The documentation for this class was generated from the following file:

• GiNoiseGenerator.h