treat a dataset as if it were an implicit function More...

#include <vtkImplicitDataSet.h>

Inheritance diagram for vtkImplicitDataSet:

Collaboration diagram for vtkImplicitDataSet:

Public Types
typedef vtkImplicitFunction	Superclass
Public Member Functions
virtual int	IsA (const char *type)
vtkImplicitDataSet *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent)
unsigned long	GetMTime ()
void	EvaluateGradient (double x[3], double n[3])

double	EvaluateFunction (double x[3])
double	EvaluateFunction (double x, double y, double z)

virtual void	SetDataSet (vtkDataSet *)
virtual vtkDataSet *	GetDataSet ()

virtual void	SetOutValue (double)
virtual double	GetOutValue ()

virtual void	SetOutGradient (double, double, double)
virtual void	SetOutGradient (double[3])
virtual double *	GetOutGradient ()
virtual void	GetOutGradient (double &, double &, double &)
virtual void	GetOutGradient (double[3])
Static Public Member Functions
static int	IsTypeOf (const char *type)
static vtkImplicitDataSet *	SafeDownCast (vtkObjectBase *o)
static vtkImplicitDataSet *	New ()
Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkImplicitDataSet ()
	~vtkImplicitDataSet ()
virtual void	ReportReferences (vtkGarbageCollector *)
Protected Attributes
vtkDataSet *	DataSet
double	OutValue
double	OutGradient [3]
double *	Weights
int	Size

Detailed Description

treat a dataset as if it were an implicit function

vtkImplicitDataSet treats any type of dataset as if it were an implicit function. This means it computes a function value and gradient. vtkImplicitDataSet is a concrete implementation of vtkImplicitFunction.

vtkImplicitDataSet computes the function (at the point x) by performing cell interpolation. That is, it finds the cell containing x, and then uses the cell's interpolation functions to compute an interpolated scalar value at x. (A similar approach is used to find the gradient, if requested.) Points outside of the dataset are assigned the value of the ivar OutValue, and the gradient value OutGradient.

Warning:: Any type of dataset can be used as an implicit function as long as it has scalar data associated with it.

See also:: vtkImplicitFunction vtkImplicitVolume vtkClipPolyData vtkCutter vtkImplicitWindowFunction

Tests:: vtkImplicitDataSet (Tests)

Definition at line 50 of file vtkImplicitDataSet.h.

Member Typedef Documentation

typedef vtkImplicitFunction vtkImplicitDataSet::Superclass

Reimplemented from vtkImplicitFunction.

Definition at line 53 of file vtkImplicitDataSet.h.

Constructor & Destructor Documentation

vtkImplicitDataSet::vtkImplicitDataSet ( ) [protected]

vtkImplicitDataSet::~vtkImplicitDataSet ( ) [protected]

Member Function Documentation

static int vtkImplicitDataSet::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 vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkImplicitFunction.

virtual int vtkImplicitDataSet::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 vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkImplicitFunction.

static vtkImplicitDataSet* vtkImplicitDataSet::SafeDownCast ( vtkObjectBase * o ) [static]

Reimplemented from vtkImplicitFunction.

virtual vtkObjectBase* vtkImplicitDataSet::NewInstanceInternal ( ) const [protected, virtual]

Reimplemented from vtkImplicitFunction.

vtkImplicitDataSet* vtkImplicitDataSet::NewInstance ( ) const

Reimplemented from vtkImplicitFunction.

void vtkImplicitDataSet::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.

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

Construct an vtkImplicitDataSet with no initial dataset; the OutValue set to a large negative number; and the OutGradient set to (0,0,1).

Reimplemented from vtkObject.

unsigned long vtkImplicitDataSet::GetMTime ( ) [virtual]

Return the MTime also considering the DataSet dependency.

Reimplemented from vtkImplicitFunction.

double vtkImplicitDataSet::EvaluateFunction ( double x[3] ) [virtual]

Evaluate the implicit function. This returns the interpolated scalar value at x[3].

Implements vtkImplicitFunction.

double vtkImplicitDataSet::EvaluateFunction	(	double	x,
		double	y,
		double	z
	)		`[inline]`

Evaluate the implicit function. This returns the interpolated scalar value at x[3].

Reimplemented from vtkImplicitFunction.

Definition at line 67 of file vtkImplicitDataSet.h.

void vtkImplicitDataSet::EvaluateGradient	(	double	x[3],
		double	n[3]
	)		`[virtual]`

Evaluate implicit function gradient.

Implements vtkImplicitFunction.

virtual void vtkImplicitDataSet::SetDataSet ( vtkDataSet * ) [virtual]

Set / get the dataset used for the implicit function evaluation.

virtual vtkDataSet* vtkImplicitDataSet::GetDataSet ( ) [virtual]

Set / get the dataset used for the implicit function evaluation.

virtual void vtkImplicitDataSet::SetOutValue ( double ) [virtual]

Set / get the function value to use for points outside of the dataset.

virtual double vtkImplicitDataSet::GetOutValue ( ) [virtual]

Set / get the function value to use for points outside of the dataset.

virtual void vtkImplicitDataSet::SetOutGradient	(	double	,
		double	,
		double
	)		`[virtual]`