implicit function for a set of spheres More...

#include <vtkSpheres.h>

Inheritance diagram for vtkSpheres:

Collaboration diagram for vtkSpheres:

Public Member Functions
void	EvaluateGradient (double x[3], double n[3]) override
	Evaluate spheres gradient.

int	GetNumberOfSpheres ()
	Return the number of spheres in the set of spheres.

vtkSphere *	GetSphere (int i)
	Create and return a pointer to a vtkSphere object at the ith position.

void	GetSphere (int i, vtkSphere *sphere)
	If i is within the allowable range, mutates the given sphere's Center and Radius to match the vtkSphere object at the ith position.


double	EvaluateFunction (double x[3]) override
	Evaluate spheres equations.

virtual double	EvaluateFunction (double x[3])=0
	Evaluate spheres equations.

virtual void	EvaluateFunction (vtkDataArray input, vtkDataArray output)
	Evaluate spheres equations.

virtual double	EvaluateFunction (double x, double y, double z)
	Evaluate spheres equations.


virtual void	SetCenters (vtkPoints *)
	Specify a list of points defining sphere centers.

virtual vtkPoints *	GetCenters ()
	Specify a list of points defining sphere centers.


void	SetRadii (vtkDataArray *radii)
	Specify a list of radii for the spheres.

virtual vtkDataArray *	GetRadii ()
	Specify a list of radii for the spheres.

Public Member Functions inherited from vtkImplicitFunction
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.

vtkImplicitFunction *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.

vtkMTimeType	GetMTime () override
	Overload standard modified time function.

virtual void	EvaluateGradient (double x[3], double g[3])=0
	Evaluate function gradient at position x-y-z and pass back vector.

virtual void	FunctionValue (vtkDataArray input, vtkDataArray output)
	Evaluate function at position x-y-z and return value.

double	FunctionValue (const double x[3])
	Evaluate function at position x-y-z and return value.

double	FunctionValue (double x, double y, double z)
	Evaluate function at position x-y-z and return value.

void	FunctionGradient (const double x[3], double g[3])
	Evaluate function gradient at position x-y-z and pass back vector.

double *	FunctionGradient (const double x[3])
	Evaluate function gradient at position x-y-z and pass back vector.

double *	FunctionGradient (double x, double y, double z)
	Evaluate function gradient at position x-y-z and pass back vector.

virtual void	SetTransform (vtkAbstractTransform *)
	Set/Get a transformation to apply to input points before executing the implicit function.

virtual void	SetTransform (const double elements[16])
	Set/Get a transformation to apply to input points before executing the implicit function.

virtual vtkAbstractTransform *	GetTransform ()
	Set/Get a transformation to apply to input points before executing the implicit function.

Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)

virtual void	DebugOn ()
	Turn debugging output on.

virtual void	DebugOff ()
	Turn debugging output off.

bool	GetDebug ()
	Get the value of the debug flag.

void	SetDebug (bool debugFlag)
	Set the value of the debug flag.

virtual void	Modified ()
	Update the modification time for this object.

virtual vtkMTimeType	GetMTime ()
	Return this object's modified time.

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

vtkTypeBool	HasObserver (unsigned long event)

vtkTypeBool	HasObserver (const char *event)

vtkTypeBool	InvokeEvent (unsigned long event)

vtkTypeBool	InvokeEvent (const char *event)

std::string	GetObjectDescription () const override
	The object description printed in messages and PrintSelf output.

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObservers (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkTypeBool	HasObserver (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Allow user to set the AbortFlagOn() with the return value of the callback method.

vtkTypeBool	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not.

vtkTypeBool	InvokeEvent (const char event, void callData)
	This method invokes an event and return whether the event was aborted or not.

virtual void	SetObjectName (const std::string &objectName)
	Set/get the name of this object for reporting purposes.

virtual std::string	GetObjectName () const
	Set/get the name of this object for reporting purposes.

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string.

virtual std::string	GetObjectDescription () const
	The object description printed in messages and PrintSelf output.

virtual vtkTypeBool	IsA (const char *name)
	Return 1 if this class is the same type of (or a subclass of) the named class.

virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

virtual void	Delete ()
	Delete a VTK object.

virtual void	FastDelete ()
	Delete a reference to this object.

void	InitializeObjectBase ()

void	Print (ostream &os)
	Print an object to an ostream.

void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object).

virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object).

int	GetReferenceCount ()
	Return the current reference count of this object.

void	SetReferenceCount (int)
	Sets the reference count.

bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space.

virtual void	PrintHeader (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.

virtual void	PrintTrailer (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.

virtual bool	UsesGarbageCollector () const
	Indicate whether the class uses `vtkGarbageCollector` or not.

Protected Member Functions
	vtkSpheres ()

	~vtkSpheres () override

Protected Member Functions inherited from vtkImplicitFunction
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkImplicitFunction ()

	~vtkImplicitFunction () override

Protected Member Functions inherited from vtkObject
	vtkObject ()

	~vtkObject () override

void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=nullptr)
	These methods allow a command to exclusively grab all events.

void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events.

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	RegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	ReportReferences (vtkGarbageCollector *)

virtual void	ObjectFinalize ()

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
vtkPoints *	Centers

vtkDataArray *	Radii

vtkSphere *	Sphere

Protected Attributes inherited from vtkImplicitFunction
vtkAbstractTransform *	Transform

double	ReturnValue [3]

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

std::string	ObjectName

Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount

vtkWeakPointerBase **	WeakPointers

typedef vtkImplicitFunction	Superclass
	Standard methods for instantiation, type information, and printing.

static vtkSpheres *	New ()
	Standard methods for instantiation, type information, and printing.

static vtkTypeBool	IsTypeOf (const char *type)
	Standard methods for instantiation, type information, and printing.

static vtkSpheres *	SafeDownCast (vtkObjectBase *o)
	Standard methods for instantiation, type information, and printing.

virtual vtkTypeBool	IsA (const char *type)
	Standard methods for instantiation, type information, and printing.

vtkSpheres *	NewInstance () const
	Standard methods for instantiation, type information, and printing.

void	PrintSelf (ostream &os, vtkIndent indent) override
	Standard methods for instantiation, type information, and printing.

virtual vtkObjectBase *	NewInstanceInternal () const
	Standard methods for instantiation, type information, and printing.

Additional Inherited Members
Public Types inherited from vtkImplicitFunction
typedef vtkObject	Superclass

Static Public Member Functions inherited from vtkImplicitFunction
static vtkTypeBool	IsTypeOf (const char *type)

static vtkImplicitFunction *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

static void	BreakOnError ()
	This method is called when vtkErrorMacro executes.

static void	SetGlobalWarningDisplay (vtkTypeBool val)
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static vtkTypeBool	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class.

static vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.

static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space.

Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

Detailed Description

implicit function for a set of spheres

vtkSpheres computes the implicit function and function gradient for a set of spheres. The spheres are combined via a union operation (i.e., the minimum value from the evaluation of all spheres is taken).

The function value is the distance of a point to the closest sphere, with negative values interior to the spheres, positive outside the spheres, and distance=0 on the spheres surface. The function gradient is the sphere normal at the function value.

See also: vtkPlanes vtkImplicitBoolean

Definition at line 31 of file vtkSpheres.h.

Member Typedef Documentation

◆ Superclass

typedef vtkImplicitFunction vtkSpheres::Superclass

Standard methods for instantiation, type information, and printing.

Definition at line 39 of file vtkSpheres.h.

Constructor & Destructor Documentation

◆ vtkSpheres()

vtkSpheres::vtkSpheres ( )

protected

◆ ~vtkSpheres()

vtkSpheres::~vtkSpheres ( )

overrideprotected

Member Function Documentation

◆ New()

static vtkSpheres * vtkSpheres::New ( )

static

Standard methods for instantiation, type information, and printing.

◆ IsTypeOf()

static vtkTypeBool vtkSpheres::IsTypeOf ( const char * type )

static

Standard methods for instantiation, type information, and printing.

◆ IsA()

virtual vtkTypeBool vtkSpheres::IsA ( const char * type )

virtual

Standard methods for instantiation, type information, and printing.

Reimplemented from vtkImplicitFunction.

◆ SafeDownCast()

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

static

Standard methods for instantiation, type information, and printing.

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkSpheres::NewInstanceInternal ( ) const

protectedvirtual

Standard methods for instantiation, type information, and printing.

Reimplemented from vtkImplicitFunction.

◆ NewInstance()

vtkSpheres * vtkSpheres::NewInstance ( ) const

Standard methods for instantiation, type information, and printing.

◆ PrintSelf()

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

overridevirtual

Standard methods for instantiation, type information, and printing.

Reimplemented from vtkImplicitFunction.

◆ EvaluateFunction() [1/4]

double vtkSpheres::EvaluateFunction ( double x[3] )

overridevirtual

Evaluate spheres equations.

Return largest value when evaluating all sphere equations.

Implements vtkImplicitFunction.

◆ EvaluateGradient()

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

overridevirtual

Evaluate spheres gradient.

Gradients point towards the outside of the spheres.

Implements vtkImplicitFunction.

◆ SetCenters()

virtual void vtkSpheres::SetCenters ( vtkPoints * )

virtual

Specify a list of points defining sphere centers.

◆ GetCenters()

virtual vtkPoints * vtkSpheres::GetCenters ( )

virtual

Specify a list of points defining sphere centers.

◆ SetRadii()

void vtkSpheres::SetRadii ( vtkDataArray * radii )

Specify a list of radii for the spheres.

There is a one-to-one correspondence between sphere points and sphere radii.

◆ GetRadii()

virtual vtkDataArray * vtkSpheres::GetRadii ( )

virtual

Specify a list of radii for the spheres.

There is a one-to-one correspondence between sphere points and sphere radii.

◆ GetNumberOfSpheres()

int vtkSpheres::GetNumberOfSpheres ( )

Return the number of spheres in the set of spheres.

◆ GetSphere() [1/2]

vtkSphere * vtkSpheres::GetSphere ( int i )

Create and return a pointer to a vtkSphere object at the ith position.

Asking for a sphere outside the allowable range returns nullptr. This method always returns the same object. Alternatively use GetSphere(int i, vtkSphere *sphere) to update a user supplied sphere.

◆ GetSphere() [2/2]

void vtkSpheres::GetSphere	(	int	i,
		vtkSphere *	sphere
	)

If i is within the allowable range, mutates the given sphere's Center and Radius to match the vtkSphere object at the ith position.

Does nothing if i is outside the allowable range.

◆ EvaluateFunction() [2/4]

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

virtual

Evaluate spheres equations.

Return largest value when evaluating all sphere equations.

Implements vtkImplicitFunction.

◆ EvaluateFunction() [3/4]

virtual void vtkImplicitFunction::EvaluateFunction	(	vtkDataArray *	input,
		vtkDataArray *	output
	)

virtual

Evaluate spheres equations.

Return largest value when evaluating all sphere equations.

Reimplemented from vtkImplicitFunction.

◆ EvaluateFunction() [4/4]

virtual double vtkImplicitFunction::EvaluateFunction	(	double	x,
		double	y,
		double	z
	)

inlinevirtual

Evaluate spheres equations.

Return largest value when evaluating all sphere equations.

Reimplemented from vtkImplicitFunction.

Definition at line 132 of file vtkImplicitFunction.h.

Member Data Documentation

◆ Centers

vtkPoints* vtkSpheres::Centers

protected

Definition at line 99 of file vtkSpheres.h.

◆ Radii

vtkDataArray* vtkSpheres::Radii

protected

Definition at line 100 of file vtkSpheres.h.

◆ Sphere

vtkSphere* vtkSpheres::Sphere

protected

Definition at line 101 of file vtkSpheres.h.

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

Common/DataModel/vtkSpheres.h

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Superclass

Constructor & Destructor Documentation

◆ vtkSpheres()

◆ ~vtkSpheres()

Member Function Documentation

◆ New()

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ PrintSelf()

◆ EvaluateFunction() [1/4]

◆ EvaluateGradient()

◆ SetCenters()

◆ GetCenters()

◆ SetRadii()

◆ GetRadii()

◆ GetNumberOfSpheres()

◆ GetSphere() [1/2]

◆ GetSphere() [2/2]

◆ EvaluateFunction() [2/4]

◆ EvaluateFunction() [3/4]

◆ EvaluateFunction() [4/4]

Member Data Documentation

◆ Centers

◆ Radii

◆ Sphere