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Rogue Wave Views 5.6

Rogue Wave Views
Foundation Package API Reference Guide

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IlvDiscreteTransfer Class Reference

Discrete transfer function. More...

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

Inheritance diagram for IlvDiscreteTransfer:
IlvTransferFunction

Public Member Functions

 IlvDiscreteTransfer ()
 Constructor. More...
 
 IlvDiscreteTransfer (IlUInt length, const IlFloat *values)
 Constructor. More...
 
 ~IlvDiscreteTransfer ()
 Destructor. More...
 
const IlFloatgetValues (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 IlUChargetLookUpTable () const
 Returns the lookup table. More...
 
void setLookUpValue (IlUInt index, IlUChar value)
 Sets an entry in the lookup table. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from IlvTransferFunction
static IlvTransferFunctionCreate (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
lengthThe length of the table.
valuesAn 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
countThe 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
lengthThe length of the table.
valuesAn array of length floating point values.

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