vtkSuperquadricSource Class Reference

#include <vtkSuperquadricSource.h>

Inheritance diagram for vtkSuperquadricSource:

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Collaboration diagram for vtkSuperquadricSource:

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List of all members.

Detailed Description

create a polygonal superquadric centered at the origin

vtkSuperquadricSource creates a superquadric (represented by polygons) of specified size centered at the origin. The resolution (polygonal discretization) in both the latitude (phi) and longitude (theta) directions can be specified. Roundness parameters (PhiRoundness and ThetaRoundness) control the shape of the superquadric. The Toroidal boolean controls whether a toroidal superquadric is produced. If so, the Thickness parameter controls the thickness of the toroid: 0 is the thinnest allowable toroid, and 1 has a minimum sized hole. The Scale parameters allow the superquadric to be scaled in x, y, and z (normal vectors are correctly generated in any case). The Size parameter controls size of the superquadric.

This code is based on "Rigid physically based superquadrics", A. H. Barr, in "Graphics Gems III", David Kirk, ed., Academic Press, 1992.

Warning:

Resolution means the number of latitude or longitude lines for a complete superquadric. The resolution parameters are rounded to the nearest 4 in phi and 8 in theta.

Texture coordinates are not equally distributed around all superquadrics.

The Size and Thickness parameters control coefficients of superquadric generation, and may do not exactly describe the size of the superquadric.

Tests:: vtkSuperquadricSource (Tests)

Definition at line 61 of file vtkSuperquadricSource.h.


Public Types
typedef vtkPolyDataAlgorithm	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)

virtual void	SetCenter (double, double, double)
virtual void	SetCenter (double[3])
virtual double *	GetCenter ()
virtual void	GetCenter (double data[3])

virtual void	SetScale (double, double, double)
virtual void	SetScale (double[3])
virtual double *	GetScale ()
virtual void	GetScale (double data[3])

virtual int	GetThetaResolution ()
void	SetThetaResolution (int i)

virtual int	GetPhiResolution ()
void	SetPhiResolution (int i)

virtual double	GetThickness ()
virtual void	SetThickness (double)

virtual double	GetPhiRoundness ()
void	SetPhiRoundness (double e)

virtual double	GetThetaRoundness ()
void	SetThetaRoundness (double e)

virtual void	SetSize (double)
virtual double	GetSize ()

virtual void	ToroidalOn ()
virtual void	ToroidalOff ()
virtual int	GetToroidal ()
virtual void	SetToroidal (int)
Static Public Member Functions
static vtkSuperquadricSource *	New ()
static int	IsTypeOf (const char *type)
static vtkSuperquadricSource *	SafeDownCast (vtkObject *o)
Protected Member Functions
	vtkSuperquadricSource (int res=16)
	~vtkSuperquadricSource ()
int	RequestData (vtkInformation , vtkInformationVector , vtkInformationVector )
Protected Attributes
int	Toroidal
int	AxisOfSymmetry
double	Thickness
double	Size
double	PhiRoundness
double	ThetaRoundness
double	Center [3]
double	Scale [3]
int	ThetaResolution
int	PhiResolution

Member Typedef Documentation

typedef vtkPolyDataAlgorithm vtkSuperquadricSource::Superclass

Reimplemented from vtkPolyDataAlgorithm.

Definition at line 69 of file vtkSuperquadricSource.h.

Constructor & Destructor Documentation

vtkSuperquadricSource::vtkSuperquadricSource ( int res = 16 ) [protected]

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

Definition at line 136 of file vtkSuperquadricSource.h.

Member Function Documentation

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

Create a default superquadric with a radius of 0.5, non-toroidal, spherical, and centered at the origin, with a scaling factor of 1 in each direction, a theta resolution and a phi resolutions of 16.

Reimplemented from vtkPolyDataAlgorithm.

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

Reimplemented from vtkPolyDataAlgorithm.

static int vtkSuperquadricSource::IsTypeOf ( const char * name ) [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.

Reimplemented from vtkPolyDataAlgorithm.

virtual int vtkSuperquadricSource::IsA ( const char * name ) [virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.

Reimplemented from vtkPolyDataAlgorithm.

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

Reimplemented from vtkPolyDataAlgorithm.

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

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkPolyDataAlgorithm.

virtual void vtkSuperquadricSource::SetCenter	(	double	,
		double	,
		double
	)			`[virtual]`

Set the center of the superquadric. Default is 0,0,0.

virtual void vtkSuperquadricSource::SetCenter ( double [3] ) [virtual]

Set the center of the superquadric. Default is 0,0,0.

virtual double* vtkSuperquadricSource::GetCenter ( ) [virtual]

Set the center of the superquadric. Default is 0,0,0.

virtual void vtkSuperquadricSource::GetCenter ( double data[3] ) [virtual]

Set the center of the superquadric. Default is 0,0,0.

virtual void vtkSuperquadricSource::SetScale	(	double	,
		double	,
		double
	)			`[virtual]`

Set the scale factors of the superquadric. Default is 1,1,1.

virtual void vtkSuperquadricSource::SetScale ( double [3] ) [virtual]

Set the scale factors of the superquadric. Default is 1,1,1.

virtual double* vtkSuperquadricSource::GetScale ( ) [virtual]

Set the scale factors of the superquadric. Default is 1,1,1.

virtual void vtkSuperquadricSource::GetScale ( double data[3] ) [virtual]

Set the scale factors of the superquadric. Default is 1,1,1.

virtual int vtkSuperquadricSource::GetThetaResolution ( ) [virtual]

Set the number of points in the longitude direction. Initial value is 16.

void vtkSuperquadricSource::SetThetaResolution ( int i )

Set the number of points in the longitude direction. Initial value is 16.

virtual int vtkSuperquadricSource::GetPhiResolution ( ) [virtual]

Set the number of points in the latitude direction. Initial value is 16.

void vtkSuperquadricSource::SetPhiResolution ( int i )

Set the number of points in the latitude direction. Initial value is 16.

virtual double vtkSuperquadricSource::GetThickness ( ) [virtual]

Set/Get Superquadric ring thickness (toroids only). Changing thickness maintains the outside diameter of the toroid. Initial value is 0.3333.

virtual void vtkSuperquadricSource::SetThickness ( double ) [virtual]

Set/Get Superquadric ring thickness (toroids only). Changing thickness maintains the outside diameter of the toroid. Initial value is 0.3333.

virtual double vtkSuperquadricSource::GetPhiRoundness ( ) [virtual]

Set/Get Superquadric north/south roundness. Values range from 0 (rectangular) to 1 (circular) to higher orders. Initial value is 1.0.

void vtkSuperquadricSource::SetPhiRoundness ( double e )

Set/Get Superquadric north/south roundness. Values range from 0 (rectangular) to 1 (circular) to higher orders. Initial value is 1.0.

virtual double vtkSuperquadricSource::GetThetaRoundness ( ) [virtual]

Set/Get Superquadric east/west roundness. Values range from 0 (rectangular) to 1 (circular) to higher orders. Initial value is 1.0.

void vtkSuperquadricSource::SetThetaRoundness ( double e )

Set/Get Superquadric east/west roundness. Values range from 0 (rectangular) to 1 (circular) to higher orders. Initial value is 1.0.

virtual void vtkSuperquadricSource::SetSize ( double ) [virtual]

Set/Get Superquadric isotropic size. Initial value is 0.5;

virtual double vtkSuperquadricSource::GetSize ( ) [virtual]

Set/Get Superquadric isotropic size. Initial value is 0.5;

virtual void vtkSuperquadricSource::ToroidalOn ( ) [virtual]

Set/Get whether or not the superquadric is toroidal (1) or ellipsoidal (0). Initial value is 0.

virtual void vtkSuperquadricSource::ToroidalOff ( ) [virtual]

Set/Get whether or not the superquadric is toroidal (1) or ellipsoidal (0). Initial value is 0.

virtual int vtkSuperquadricSource::GetToroidal ( ) [virtual]

Set/Get whether or not the superquadric is toroidal (1) or ellipsoidal (0). Initial value is 0.

virtual void vtkSuperquadricSource::SetToroidal ( int ) [virtual]

Set/Get whether or not the superquadric is toroidal (1) or ellipsoidal (0). Initial value is 0.

int vtkSuperquadricSource::RequestData	(	vtkInformation *	request,
		vtkInformationVector **	inputVector,
		vtkInformationVector *	outputVector
	)			`[protected, virtual]`