A direction encoder based on spherical coordinates. More...

#include <vtkSphericalDirectionEncoder.h>

Inheritance diagram for vtkSphericalDirectionEncoder:

Collaboration diagram for vtkSphericalDirectionEncoder:

Public Types
typedef vtkDirectionEncoder	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
int	GetEncodedDirection (float n[3])
float *	GetDecodedGradient (int value)
int	GetNumberOfEncodedDirections (void)

float *	GetDecodedGradientTable (void)
Static Public Member Functions
static int	IsTypeOf (const char *type)
static vtkSphericalDirectionEncoder *	SafeDownCast (vtkObject *o)
static vtkSphericalDirectionEncoder *	New ()
Protected Member Functions
	vtkSphericalDirectionEncoder ()
	~vtkSphericalDirectionEncoder ()
Static Protected Attributes
static float	DecodedGradientTable [65536 *3]
static int	DecodedGradientTableInitialized
static void	InitializeDecodedGradientTable ()

Detailed Description

A direction encoder based on spherical coordinates.

vtkSphericalDirectionEncoder is a direction encoder which uses spherical coordinates for mapping (nx, ny, nz) into an azimuth, elevation pair.

See also:: vtkDirectionEncoder

Definition at line 30 of file vtkSphericalDirectionEncoder.h.

Member Typedef Documentation

typedef vtkDirectionEncoder vtkSphericalDirectionEncoder::Superclass

Get the name of this class

Reimplemented from vtkDirectionEncoder.

Definition at line 33 of file vtkSphericalDirectionEncoder.h.

Constructor & Destructor Documentation

vtkSphericalDirectionEncoder::vtkSphericalDirectionEncoder ( ) [protected]

vtkSphericalDirectionEncoder::~vtkSphericalDirectionEncoder ( ) [protected]

Member Function Documentation

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

Get the name of this class

Reimplemented from vtkDirectionEncoder.

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

Get the name of this class

Reimplemented from vtkDirectionEncoder.

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

Get the name of this class

Reimplemented from vtkDirectionEncoder.

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

Get the name of this class

Reimplemented from vtkDirectionEncoder.

void vtkSphericalDirectionEncoder::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)		`[virtual]`

Get the name of this class

Reimplemented from vtkDirectionEncoder.

static vtkSphericalDirectionEncoder* vtkSphericalDirectionEncoder::New ( ) [static]

Construct the object. Initialize the index table which will be used to map the normal into a patch on the recursively subdivided sphere.

Reimplemented from vtkObject.

int vtkSphericalDirectionEncoder::GetEncodedDirection ( float n[3] ) [virtual]

Given a normal vector n, return the encoded direction

Implements vtkDirectionEncoder.

float* vtkSphericalDirectionEncoder::GetDecodedGradient ( int value ) [virtual]

/ Given an encoded value, return a pointer to the normal vector

Implements vtkDirectionEncoder.

int vtkSphericalDirectionEncoder::GetNumberOfEncodedDirections ( void ) [inline, virtual]

Return the number of encoded directions

Implements vtkDirectionEncoder.

Definition at line 48 of file vtkSphericalDirectionEncoder.h.

float* vtkSphericalDirectionEncoder::GetDecodedGradientTable ( void ) [inline, 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.

Implements vtkDirectionEncoder.

Definition at line 55 of file vtkSphericalDirectionEncoder.h.

static void vtkSphericalDirectionEncoder::InitializeDecodedGradientTable ( ) [static, protected]

Initialize the table at startup