Implicit function that computes the distance from a point x to the nearest point p on an input vtkPolyData. More...

#include <vtkImplicitPolyDataDistance.h>

Inheritance diagram for vtkImplicitPolyDataDistance:

Collaboration diagram for vtkImplicitPolyDataDistance:

Public Types
typedef vtkImplicitFunction	Superclass

Public Types inherited from vtkImplicitFunction
typedef vtkObject	Superclass

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

vtkImplicitPolyDataDistance *	NewInstance () const

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

vtkMTimeType	GetMTime () override
	Return the MTime also considering the Input dependency.

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

void	EvaluateGradient (double x[3], double g[3]) override
	Evaluate function gradient of nearest triangle to point x[3].

double	EvaluateFunctionAndGetClosestPoint (double x[3], double closestPoint[3])
	Evaluate plane equation of nearest triangle to point x[3] and provides closest point on an input vtkPolyData.

void	SetInput (vtkPolyData *input)
	Set the input vtkPolyData used for the implicit function evaluation.

virtual double	EvaluateFunction (double x[3])=0
	Evaluate plane equation of nearest triangle to point x[3].

virtual void	EvaluateFunction (vtkDataArray input, vtkDataArray output)
	Evaluate plane equation of nearest triangle to point x[3].

virtual double	EvaluateFunction (double x, double y, double z)
	Evaluate plane equation of nearest triangle to point x[3].


virtual void	SetNoValue (double)
	Set/get the function value to use if no input vtkPolyData specified.

virtual double	GetNoValue ()
	Set/get the function value to use if no input vtkPolyData specified.


virtual void	SetNoGradient (double, double, double)
	Set/get the function gradient to use if no input vtkPolyData specified.

virtual void	SetNoGradient (double[3])
	Set/get the function gradient to use if no input vtkPolyData specified.

virtual double *	GetNoGradient ()
	Set/get the function gradient to use if no input vtkPolyData specified.

virtual void	GetNoGradient (double &, double &, double &)
	Set/get the function gradient to use if no input vtkPolyData specified.

virtual void	GetNoGradient (double[3])
	Set/get the function gradient to use if no input vtkPolyData specified.


virtual void	SetNoClosestPoint (double, double, double)
	Set/get the closest point to use if no input vtkPolyData specified.

virtual void	SetNoClosestPoint (double[3])
	Set/get the closest point to use if no input vtkPolyData specified.

virtual double *	GetNoClosestPoint ()
	Set/get the closest point to use if no input vtkPolyData specified.

virtual void	GetNoClosestPoint (double &, double &, double &)
	Set/get the closest point to use if no input vtkPolyData specified.

virtual void	GetNoClosestPoint (double[3])
	Set/get the closest point to use if no input vtkPolyData specified.


virtual double	GetTolerance ()
	Set/get the tolerance usued for the locator.

virtual void	SetTolerance (double)
	Set/get the tolerance usued for the locator.

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)

int	InvokeEvent (unsigned long event)

int	InvokeEvent (const char *event)

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.

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

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

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

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.

virtual 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.

Static Public Member Functions
static vtkImplicitPolyDataDistance *	New ()

static vtkTypeBool	IsTypeOf (const char *type)

static vtkImplicitPolyDataDistance *	SafeDownCast (vtkObjectBase *o)

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 (int 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 int	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.

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkImplicitPolyDataDistance ()

	~vtkImplicitPolyDataDistance () override

void	CreateDefaultLocator (void)
	Create default locator.

double	SharedEvaluate (double x[3], double g[3], double closestPoint[3])

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 *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
double	NoGradient [3]

double	NoClosestPoint [3]

double	NoValue

double	Tolerance

vtkPolyData *	Input

vtkCellLocator *	Locator

Protected Attributes inherited from vtkImplicitFunction
vtkAbstractTransform *	Transform

double	ReturnValue [3]

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

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

vtkWeakPointerBase **	WeakPointers

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

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

Detailed Description

Implicit function that computes the distance from a point x to the nearest point p on an input vtkPolyData.

Implicit function that computes the distance from a point x to the nearest point p on an input vtkPolyData. The sign of the function is set to the sign of the dot product between the angle-weighted pseudonormal at the nearest surface point and the vector x - p. Points interior to the geometry have a negative distance, points on the exterior have a positive distance, and points on the input vtkPolyData have a distance of zero. The gradient of the function is the angle-weighted pseudonormal at the nearest point.

Baerentzen, J. A. and Aanaes, H. (2005). Signed distance computation using the angle weighted pseudonormal. IEEE Transactions on Visualization and Computer Graphics, 11:243-253.

This code was contributed in the VTK Journal paper: "Boolean Operations on Surfaces in VTK Without External Libraries" by Cory Quammen, Chris Weigle C., Russ Taylor http://hdl.handle.net/10380/3262 http://www.midasjournal.org/browse/publication/797

Online Examples:

ClipDataSetWithPolyData

TableBasedClipDataSetWithPolyData

ImplicitPolyDataDistance

Definition at line 88 of file vtkImplicitPolyDataDistance.h.

Member Typedef Documentation

◆ Superclass

typedef vtkImplicitFunction vtkImplicitPolyDataDistance::Superclass

Definition at line 92 of file vtkImplicitPolyDataDistance.h.

Constructor & Destructor Documentation

◆ vtkImplicitPolyDataDistance()

vtkImplicitPolyDataDistance::vtkImplicitPolyDataDistance ( )

protected

◆ ~vtkImplicitPolyDataDistance()

vtkImplicitPolyDataDistance::~vtkImplicitPolyDataDistance ( )

overrideprotected

Member Function Documentation

◆ New()

static vtkImplicitPolyDataDistance * vtkImplicitPolyDataDistance::New ( )

static

◆ IsTypeOf()

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

static

◆ IsA()

virtual vtkTypeBool vtkImplicitPolyDataDistance::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.

◆ SafeDownCast()

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

static

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkImplicitPolyDataDistance::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkImplicitFunction.

◆ NewInstance()

vtkImplicitPolyDataDistance * vtkImplicitPolyDataDistance::NewInstance ( ) const

◆ PrintSelf()

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

overridevirtual

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.

◆ GetMTime()

vtkMTimeType vtkImplicitPolyDataDistance::GetMTime ( )

overridevirtual

Return the MTime also considering the Input dependency.

Reimplemented from vtkImplicitFunction.

◆ EvaluateFunction() [1/4]

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

overridevirtual

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.

◆ EvaluateGradient()

void vtkImplicitPolyDataDistance::EvaluateGradient	(	double	x[3],
		double	g[3]
	)

overridevirtual

Evaluate function gradient of nearest triangle to point x[3].

Implements vtkImplicitFunction.

◆ EvaluateFunctionAndGetClosestPoint()

double vtkImplicitPolyDataDistance::EvaluateFunctionAndGetClosestPoint	(	double	x[3],
		double	closestPoint[3]
	)

Evaluate plane equation of nearest triangle to point x[3] and provides closest point on an input vtkPolyData.

◆ SetInput()

void vtkImplicitPolyDataDistance::SetInput ( vtkPolyData * input )

Set the input vtkPolyData used for the implicit function evaluation.

Passes input through an internal instance of vtkTriangleFilter to remove vertices and lines, leaving only triangular polygons for evaluation as implicit planes.

◆ SetNoValue()

virtual void vtkImplicitPolyDataDistance::SetNoValue ( double )

virtual

Set/get the function value to use if no input vtkPolyData specified.

◆ GetNoValue()

virtual double vtkImplicitPolyDataDistance::GetNoValue ( )

virtual

Set/get the function value to use if no input vtkPolyData specified.

◆ SetNoGradient() [1/2]

virtual void vtkImplicitPolyDataDistance::SetNoGradient	(	double	,
		double	,
		double
	)

virtual

Set/get the function gradient to use if no input vtkPolyData specified.

◆ SetNoGradient() [2/2]

virtual void vtkImplicitPolyDataDistance::SetNoGradient ( double [3] )

virtual

Set/get the function gradient to use if no input vtkPolyData specified.

◆ GetNoGradient() [1/3]

virtual double * vtkImplicitPolyDataDistance::GetNoGradient ( )

virtual

Set/get the function gradient to use if no input vtkPolyData specified.

◆ GetNoGradient() [2/3]

virtual void vtkImplicitPolyDataDistance::GetNoGradient	(	double &	,
		double &	,
		double &
	)

virtual

Set/get the function gradient to use if no input vtkPolyData specified.

◆ GetNoGradient() [3/3]

virtual void vtkImplicitPolyDataDistance::GetNoGradient ( double [3] )

virtual

Set/get the function gradient to use if no input vtkPolyData specified.