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IlvDiscreteTransfer Class Reference

Discrete transfer function. More...

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

Inheritance diagram for IlvDiscreteTransfer:
IlvTransferFunction IlvValueInterface

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...
 
- 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 IlvValuequeryValue (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 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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