vtkvmtkPolyBall Class Reference

An instance of vtkImplicitFunction which evaluates the minimum sphere function from a collection of points with attached sphere radii as point data. More...

#include <vtkvmtkPolyBall.h>

Inheritance diagram for vtkvmtkPolyBall:

Collaboration diagram for vtkvmtkPolyBall:

Public Types
typedef vtkImplicitFunction	Superclass

Public Member Functions
virtual int	IsA (const char *type)
vtkvmtkPolyBall *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) VTK_OVERRIDE
void	EvaluateGradient (double x[3], double n[3]) VTK_OVERRIDE
double	EvaluateFunction (double x[3]) VTK_OVERRIDE
double	EvaluateFunction (double x, double y, double z) VTK_OVERRIDE
virtual void	SetInput (vtkPolyData *)
virtual vtkPolyData *	GetInput ()
void	SetInputData (vtkPolyData *input)
vtkPolyData *	GetInputData ()
virtual void	SetPolyBallRadiusArrayName (const char *)
virtual char *	GetPolyBallRadiusArrayName ()
virtual vtkIdType	GetLastPolyBallCenterId ()

Static Public Member Functions
static int	IsTypeOf (const char *type)
static vtkvmtkPolyBall *	SafeDownCast (vtkObjectBase *o)
static vtkvmtkPolyBall *	New ()

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkvmtkPolyBall ()
	~vtkvmtkPolyBall ()

Protected Attributes
vtkPolyData *	Input
char *	PolyBallRadiusArrayName
vtkIdType	LastPolyBallCenterId

Detailed Description

An instance of vtkImplicitFunction which evaluates the minimum sphere function from a collection of points with attached sphere radii as point data.

Date

2006/04/06 16:46:43

Revision

1.3

Implicit functions are real valued functions defined in 3D space, w = F(x,y,z). Two primitive operations are required: the ability to evaluate the function, and the function gradient at a given point. The implicit function divides space into three regions: on the surface (F(x,y,z)=w), outside of the surface (F(x,y,z)>c), and inside the surface (F(x,y,z)<c). (When c is zero, positive values are outside, negative values are inside, and zero is on the surface. Note also that the function gradient points from inside to outside.)

A polyball is just an implicit function which takes a data set containing a bunch of points in R^3 with sphere radii defined on top of them and evaluates the minimum sphere function across the entire collection for a particular point. The sphere function is zero at the sphere surface, negative inside the sphere, and positive outside the sphere. This is implemented as a brute force calculation; in order to find the minimum sphere function across the collection, the sphere function is evaluated at the query point for every point in the input data set.

Definition at line 38 of file vtkvmtkPolyBall.h.

Member Typedef Documentation

Superclass

typedef vtkImplicitFunction vtkvmtkPolyBall::Superclass

Definition at line 41 of file vtkvmtkPolyBall.h.

Constructor & Destructor Documentation

vtkvmtkPolyBall()

vtkvmtkPolyBall::vtkvmtkPolyBall ( )

protected

~vtkvmtkPolyBall()

vtkvmtkPolyBall::~vtkvmtkPolyBall ( )

protected

Member Function Documentation

IsTypeOf()

static int vtkvmtkPolyBall::IsTypeOf ( const char *  type )

static

IsA()

virtual int vtkvmtkPolyBall::IsA ( const char *  type )

virtual

SafeDownCast()

static vtkvmtkPolyBall* vtkvmtkPolyBall::SafeDownCast ( vtkObjectBase *  o )

static

NewInstanceInternal()

virtual vtkObjectBase* vtkvmtkPolyBall::NewInstanceInternal ( ) const

protectedvirtual

NewInstance()

vtkvmtkPolyBall* vtkvmtkPolyBall::NewInstance

(

)

const

PrintSelf()

void vtkvmtkPolyBall::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)

New()

static vtkvmtkPolyBall* vtkvmtkPolyBall::New ( )

static

EvaluateFunction() [1/2]

double vtkvmtkPolyBall::EvaluateFunction

(

double

x[3]

)

Evaluate polyball.

EvaluateFunction() [2/2]

double vtkvmtkPolyBall::EvaluateFunction ( double  x, double  y, double  z  )

inline

Evaluate polyball.

Definition at line 49 of file vtkvmtkPolyBall.h.

  {return this->vtkImplicitFunction::EvaluateFunction(x, y, z); } ;

EvaluateGradient()

void vtkvmtkPolyBall::EvaluateGradient	(	double	x[3],
		double	n[3]
	)

Evaluate polyball gradient.

SetInput()

virtual void vtkvmtkPolyBall::SetInput ( vtkPolyData *  )

virtual

Set / get input poly data.

GetInput()

virtual vtkPolyData* vtkvmtkPolyBall::GetInput ( )

virtual

Set / get input poly data.

SetInputData()

void vtkvmtkPolyBall::SetInputData ( vtkPolyData *  input )

inline

Set / get input poly data.

Definition at line 60 of file vtkvmtkPolyBall.h.

{ SetInput(input); }

GetInputData()

vtkPolyData* vtkvmtkPolyBall::GetInputData ( )

inline

Set / get input poly data.

Definition at line 61 of file vtkvmtkPolyBall.h.

{ return GetInput(); }

SetPolyBallRadiusArrayName()

virtual void vtkvmtkPolyBall::SetPolyBallRadiusArrayName ( const char *  )

virtual

Set / get poly ball radius array name.

GetPolyBallRadiusArrayName()

virtual char* vtkvmtkPolyBall::GetPolyBallRadiusArrayName ( )

virtual

Set / get poly ball radius array name.

GetLastPolyBallCenterId()

virtual vtkIdType vtkvmtkPolyBall::GetLastPolyBallCenterId ( )

virtual

Get the id of the last nearest poly ball center.

Member Data Documentation

Input

vtkPolyData* vtkvmtkPolyBall::Input

protected

Definition at line 79 of file vtkvmtkPolyBall.h.

PolyBallRadiusArrayName

char* vtkvmtkPolyBall::PolyBallRadiusArrayName

protected

Definition at line 80 of file vtkvmtkPolyBall.h.

LastPolyBallCenterId

vtkIdType vtkvmtkPolyBall::LastPolyBallCenterId

protected

Definition at line 81 of file vtkvmtkPolyBall.h.

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

• vtkvmtkPolyBall.h