IlvDiscreteTransfer Class Reference

Discrete transfer function. More...

#include <ilviews/bitmaps/filters/transfer.h>

Inheritance diagram for IlvDiscreteTransfer:

Public Member Functions
	IlvDiscreteTransfer ()
	Constructor. More...
	IlvDiscreteTransfer (IlUInt length, const IlFloat *values)
	Constructor. More...
	~IlvDiscreteTransfer ()
	Destructor. More...
const IlFloat *	getValues (IlUInt &count) const
	Returns the table used in the instance. More...
void	setValues (IlUInt length, const IlFloat *values)
Public Member Functions inherited from IlvTransferFunction
	IlvTransferFunction ()
	Constructor. More...
const IlUChar *	getLookUpTable () const
	Returns the lookup table. More...
void	setLookUpValue (IlUInt index, IlUChar value)
	Sets an entry in the lookup table. More...
Public Member Functions inherited from IlvValueInterface
virtual IlBoolean	applyValue (const IlvValue &value)
	Apply an accessor. More...
virtual IlBoolean	changeValue (const IlvValue &val)
	Changes the value of an accessor. More...
virtual IlBoolean	changeValues (const IlvValue *values, IlUShort count=0)
	Changes several accessor values simultaneously. More...
virtual void	getAccessors (const IlSymbol *const **names, const IlvValueTypeClass *const **types, IlUInt &count) const
	Retrieves the list of available accessors of an object. More...
virtual const char *	getName () const
	Returns the name of the instance. The semantic and implementation of this method are defined by concrete subclasses. The default implementation returns 0. More...
virtual IlvValue &	queryValue (IlvValue &val) const
	Retrieves an accessor value. More...
virtual void	queryValues (IlvValue *values, IlUShort count) const
	Retrieves multiple accessor values simultaneously. More...

Additional Inherited Members
Static Public Member Functions inherited from IlvTransferFunction
static IlvTransferFunction *	Create (const char *name)
	Returns a new instance of a registered transfer function. More...

Detailed Description

Discrete transfer function.

Library: ilvbmpflt

This transfer function defines a lookup table by a step into a lookup table. Interpolation uses the following formula: k/N <= C <= (k + 1)/N => C' = vk

See also

IlvRGBBitmapData, IlvBitmapFilter, IlvComponentTransferFilter, IlvTransferFunction, IlvIdentityTransfer, IlvLinearTransfer, IlvTableTransfer, IlvGammaTransfer

Constructor & Destructor Documentation

IlvDiscreteTransfer::IlvDiscreteTransfer

(

)

Constructor.

Initializes a new instance of the class IlvDiscreteTransfer.

IlvDiscreteTransfer::IlvDiscreteTransfer	(	IlUInt	length,
		const IlFloat *	values
	)

Constructor.

Initializes a new instance of the class IlvDiscreteTransfer using a table.

Parameters

length	The length of the table.
values	An array of length floating point values.

IlvDiscreteTransfer::~IlvDiscreteTransfer

(

)

Destructor.

The destructor releases all the memory used by the instance.

Member Function Documentation

const IlFloat* IlvDiscreteTransfer::getValues

(

IlUInt &

count

)

const

Returns the table used in the instance.

Parameters

count

The number of values in the array.

Returns

An array of count floating point values.

void IlvDiscreteTransfer::setValues	(	IlUInt	length,
		const IlFloat *	values
	)

Sets the table.

Parameters

length	The length of the table.
values	An array of length floating point values.