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vtkSuperquadric Class Reference

#include <vtkSuperquadric.h>

Inheritance diagram for vtkSuperquadric:

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Collaboration diagram for vtkSuperquadric:

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List of all members.

Detailed Description

implicit function for a Superquadric

Date
2003/01/06 20:36:14
Revision
1.21

vtkSuperquadric computes the implicit function and function gradient for a superquadric. vtkSuperquadric is a concrete implementation of vtkImplicitFunction. The superquadric is centered at Center and axes of rotation is along the y-axis. (Use the superclass' vtkImplicitFunction transformation matrix if necessary to reposition.) 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:
The Size and Thickness parameters control coefficients of superquadric generation, and may do not exactly describe the size of the superquadric.

Definition at line 52 of file vtkSuperquadric.h.

Public Types

typedef vtkImplicitFunction Superclass

Public Member Functions

virtual const char * GetClassName ()
virtual int IsA (const char *type)
void PrintSelf (ostream &os, vtkIndent indent)
float EvaluateFunction (float x[3])
float EvaluateFunction (float x, float y, float z)
void EvaluateGradient (float x[3], float g[3])
virtual void SetCenter (float, float, float)
virtual void SetCenter (float[3])
virtual float * GetCenter ()
virtual void GetCenter (float data[3])
virtual void SetScale (float, float, float)
virtual void SetScale (float[3])
virtual float * GetScale ()
virtual void GetScale (float data[3])
virtual float GetThickness ()
virtual void SetThickness (float)
virtual float GetPhiRoundness ()
void SetPhiRoundness (float e)
virtual float GetThetaRoundness ()
void SetThetaRoundness (float e)
virtual void SetSize (float)
virtual float GetSize ()
virtual void ToroidalOn ()
virtual void ToroidalOff ()
virtual int GetToroidal ()
virtual void SetToroidal (int)

Static Public Member Functions

vtkSuperquadricNew ()
int IsTypeOf (const char *type)
vtkSuperquadricSafeDownCast (vtkObject *o)

Protected Member Functions

 vtkSuperquadric ()
 ~vtkSuperquadric ()

Protected Attributes

int Toroidal
float Thickness
float Size
float PhiRoundness
float ThetaRoundness
float Center [3]
float Scale [3]


Member Typedef Documentation

typedef vtkImplicitFunction vtkSuperquadric::Superclass
 

Reimplemented from vtkImplicitFunction.

Definition at line 60 of file vtkSuperquadric.h.


Constructor & Destructor Documentation

vtkSuperquadric::vtkSuperquadric  )  [protected]
 

vtkSuperquadric::~vtkSuperquadric  )  [inline, protected]
 

Definition at line 118 of file vtkSuperquadric.h.


Member Function Documentation

vtkSuperquadric* vtkSuperquadric::New  )  [static]
 

Construct with superquadric radius of 0.5, toroidal off, center at 0.0, scale (1,1,1), size 0.5, phi roundness 1.0, and theta roundness 0.0.

Reimplemented from vtkObject.

virtual const char* vtkSuperquadric::GetClassName  )  [virtual]
 

Reimplemented from vtkImplicitFunction.

int vtkSuperquadric::IsTypeOf const char *  type  )  [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 vtkImplicitFunction.

virtual int vtkSuperquadric::IsA const char *  type  )  [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 vtkImplicitFunction.

vtkSuperquadric* vtkSuperquadric::SafeDownCast vtkObject o  )  [static]
 

Reimplemented from vtkImplicitFunction.

void vtkSuperquadric::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 vtkImplicitFunction.

float vtkSuperquadric::EvaluateFunction float  x[3]  )  [virtual]
 

Evaluate function at position x-y-z and return value. You should generally not call this method directly, you should use FunctionValue() instead. This method must be implemented by any derived class.

Implements vtkImplicitFunction.

float vtkSuperquadric::EvaluateFunction float  x,
float  y,
float  z
[inline]
 

Evaluate function at position x-y-z and return value. You should generally not call this method directly, you should use FunctionValue() instead. This method must be implemented by any derived class.

Reimplemented from vtkImplicitFunction.

Definition at line 65 of file vtkSuperquadric.h.

References vtkImplicitFunction::EvaluateFunction().

void vtkSuperquadric::EvaluateGradient float  x[3],
float  g[3]
[virtual]
 

Evaluate function gradient at position x-y-z and pass back vector. You should generally not call this method directly, you should use FunctionGradient() instead. This method must be implemented by any derived class.

Implements vtkImplicitFunction.

virtual void vtkSuperquadric::SetCenter float  ,
float  ,
float 
[virtual]
 

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

virtual void vtkSuperquadric::SetCenter float  [3]  )  [virtual]
 

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

virtual float* vtkSuperquadric::GetCenter  )  [virtual]
 

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

virtual void vtkSuperquadric::GetCenter float  data[3]  )  [virtual]
 

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

virtual void vtkSuperquadric::SetScale float  ,
float  ,
float 
[virtual]
 

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

virtual void vtkSuperquadric::SetScale float  [3]  )  [virtual]
 

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

virtual float* vtkSuperquadric::GetScale  )  [virtual]
 

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

virtual void vtkSuperquadric::GetScale float  data[3]  )  [virtual]
 

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

virtual float vtkSuperquadric::GetThickness  )  [virtual]
 

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

virtual void vtkSuperquadric::SetThickness float   )  [virtual]
 

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

virtual float vtkSuperquadric::GetPhiRoundness  )  [virtual]
 

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

void vtkSuperquadric::SetPhiRoundness float  e  ) 
 

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

virtual float vtkSuperquadric::GetThetaRoundness  )  [virtual]
 

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

void vtkSuperquadric::SetThetaRoundness float  e  ) 
 

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

virtual void vtkSuperquadric::SetSize float   )  [virtual]
 

Set/Get Superquadric isotropic size.

virtual float vtkSuperquadric::GetSize  )  [virtual]
 

Set/Get Superquadric isotropic size.

virtual void vtkSuperquadric::ToroidalOn  )  [virtual]
 

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

virtual void vtkSuperquadric::ToroidalOff  )  [virtual]
 

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

virtual int vtkSuperquadric::GetToroidal  )  [virtual]
 

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

virtual void vtkSuperquadric::SetToroidal int   )  [virtual]
 

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


Member Data Documentation

int vtkSuperquadric::Toroidal [protected]
 

Definition at line 120 of file vtkSuperquadric.h.

float vtkSuperquadric::Thickness [protected]
 

Definition at line 121 of file vtkSuperquadric.h.

float vtkSuperquadric::Size [protected]
 

Definition at line 122 of file vtkSuperquadric.h.

float vtkSuperquadric::PhiRoundness [protected]
 

Definition at line 123 of file vtkSuperquadric.h.

float vtkSuperquadric::ThetaRoundness [protected]
 

Definition at line 124 of file vtkSuperquadric.h.

float vtkSuperquadric::Center[3] [protected]
 

Definition at line 125 of file vtkSuperquadric.h.

float vtkSuperquadric::Scale[3] [protected]
 

Definition at line 126 of file vtkSuperquadric.h.


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