vtkDirectionEncoder Class Reference

#include <vtkDirectionEncoder.h>

Inheritance diagram for vtkDirectionEncoder:

[legend]Collaboration diagram for vtkDirectionEncoder:

[legend]List of all members.

Detailed Description

encode a direction into a one or two byte value

Given a direction, encode it into an integer value. This value should be less than 65536, which is the maximum number of encoded directions supported by this superclass. A direction encoded is used to encode normals in a volume for use during volume rendering, and the amount of space that is allocated per normal is 2 bytes. This is an abstract superclass - see the subclasses for specific implementation details.

See also:: vtkRecursiveSphereDirectionEncoder

Definition at line 37 of file vtkDirectionEncoder.h.

[NOHEADER]

typedef vtkObject Superclass

virtual const char * GetClassName ()

virtual int IsA (const char *type)

virtual void PrintSelf (ostream &os, vtkIndent indent)

int IsTypeOf (const char *type)

vtkDirectionEncoder * SafeDownCast (vtkObject *o)

Public Member Functions

virtual int GetEncodedDirection (float n[3])=0

virtual float * GetDecodedGradient (int value)=0

virtual int GetNumberOfEncodedDirections (void)=0

virtual float * GetDecodedGradientTable (void)=0

Protected Member Functions

vtkDirectionEncoder ()

~vtkDirectionEncoder ()

Member Typedef Documentation

typedef vtkObject vtkDirectionEncoder::Superclass

Get the name of this class
Reimplemented from vtkObject.
Reimplemented in vtkRecursiveSphereDirectionEncoder.
Definition at line 42 of file vtkDirectionEncoder.h.

Constructor & Destructor Documentation

vtkDirectionEncoder::vtkDirectionEncoder ( ) [inline, protected]

Definition at line 62 of file vtkDirectionEncoder.h.

vtkDirectionEncoder::~vtkDirectionEncoder ( ) [inline, protected]

Definition at line 63 of file vtkDirectionEncoder.h.

Member Function Documentation

virtual const char* vtkDirectionEncoder::GetClassName ( ) [virtual]

Get the name of this class
Reimplemented from vtkObject.
Reimplemented in vtkRecursiveSphereDirectionEncoder.

int vtkDirectionEncoder::IsTypeOf ( const char * type ) [static]

Get the name of this class
Reimplemented from vtkObject.
Reimplemented in vtkRecursiveSphereDirectionEncoder.

virtual int vtkDirectionEncoder::IsA ( const char * type ) [virtual]

Get the name of this class
Reimplemented from vtkObject.
Reimplemented in vtkRecursiveSphereDirectionEncoder.

vtkDirectionEncoder* vtkDirectionEncoder::SafeDownCast ( vtkObject * o ) [static]

Get the name of this class
Reimplemented from vtkObject.
Reimplemented in vtkRecursiveSphereDirectionEncoder.

virtual void vtkDirectionEncoder::PrintSelf ( ostream & os,

vtkIndent indent

) [virtual]

Get the name of this class
Reimplemented from vtkObject.
Reimplemented in vtkRecursiveSphereDirectionEncoder.

virtual int vtkDirectionEncoder::GetEncodedDirection ( float n[3] ) [pure virtual]

Given a normal vector n, return the encoded direction
Implemented in vtkRecursiveSphereDirectionEncoder.

virtual float* vtkDirectionEncoder::GetDecodedGradient ( int value ) [pure virtual]

/ Given an encoded value, return a pointer to the normal vector
Implemented in vtkRecursiveSphereDirectionEncoder.

virtual int vtkDirectionEncoder::GetNumberOfEncodedDirections ( void ) [pure virtual]

Return the number of encoded directions
Implemented in vtkRecursiveSphereDirectionEncoder.

virtual float* vtkDirectionEncoder::GetDecodedGradientTable ( void ) [pure virtual]

Get the decoded gradient table. There are this->GetNumberOfEncodedDirections() entries in the table, each containing a normal (direction) vector. This is a flat structure - 3 times the number of directions floats in an array.
Implemented in vtkRecursiveSphereDirectionEncoder.

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

Rendering/vtkDirectionEncoder.h


[NOHEADER]
typedef vtkObject	Superclass
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
virtual void	PrintSelf (ostream &os, vtkIndent indent)
int	IsTypeOf (const char *type)
vtkDirectionEncoder *	SafeDownCast (vtkObject *o)
Public Member Functions
virtual int	GetEncodedDirection (float n[3])=0
virtual float *	GetDecodedGradient (int value)=0
virtual int	GetNumberOfEncodedDirections (void)=0
virtual float *	GetDecodedGradientTable (void)=0
Protected Member Functions
	vtkDirectionEncoder ()
	~vtkDirectionEncoder ()