implicit function for a bounding box More...

#include <vtkBox.h>

Inheritance diagram for vtkBox:

Collaboration diagram for vtkBox:

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. More...

vtkBox *	NewInstance () const

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

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

void	EvaluateGradient (double x[3], double n[3]) override
	Evaluate the gradient of the box. More...

void	SetXMax (double p[3])

void	SetXMax (double x, double y, double z)

void	GetXMax (double p[3])

void	GetXMax (double &x, double &y, double &z)

void	SetBounds (double xMin, double xMax, double yMin, double yMax, double zMin, double zMax)

void	SetBounds (const double bounds[6])

void	GetBounds (double &xMin, double &xMax, double &yMin, double &yMax, double &zMin, double &zMax)

void	GetBounds (double bounds[6])

double *	GetBounds ()

void	AddBounds (const double bounds[6])
	A special method that allows union set operation on bounding boxes. More...


void	SetXMin (double p[3])
	Set / get the bounding box using various methods. More...

void	SetXMin (double x, double y, double z)
	Set / get the bounding box using various methods. More...

void	GetXMin (double p[3])
	Set / get the bounding box using various methods. More...

void	GetXMin (double &x, double &y, double &z)
	Set / get the bounding box using various methods. More...

Public Member Functions inherited from vtkImplicitFunction
vtkImplicitFunction *	NewInstance () const

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

vtkMTimeType	GetMTime () override
	Overload standard modified time function. More...

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

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

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

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

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

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

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

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

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

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

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

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

virtual void	DebugOn ()
	Turn debugging output on. More...

virtual void	DebugOff ()
	Turn debugging output off. More...

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

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

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

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. More...

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

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

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

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

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

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

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

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. More...

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. More...

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. More...

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

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

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

virtual void	Delete ()
	Delete a VTK object. More...

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

void	InitializeObjectBase ()

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

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

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

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

void	SetReferenceCount (int)
	Sets the reference count. More...

void	PrintRevisions (ostream &)
	Legacy. More...

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

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

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

static vtkBox *	SafeDownCast (vtkObjectBase *o)

static vtkBox *	New ()
	Construct box with center at (0,0,0) and each side of length 1.0. More...

static char	IntersectBox (double bounds[6], const double origin[3], double dir[3], double coord[3], double &t)
	Bounding box intersection with line modified from Graphics Gems Vol I. More...

static int	IntersectWithLine (const double bounds[6], const double p1[3], const double p2[3], double &t1, double &t2, double x1[3], double x2[3], int &plane1, int &plane2)
	Intersect a line with the box. More...

static vtkTypeBool	IntersectWithPlane (double bounds[6], double origin[3], double normal[3])
	Plane intersection with the box. More...

static vtkTypeBool	IntersectWithPlane (double bounds[6], double origin[3], double normal[3], double xints[18])
	Plane intersection with the box. More...

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. More...

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

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

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

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

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

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. More...

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

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkBox ()

	~vtkBox () override

Protected Member Functions inherited from vtkImplicitFunction
	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. More...

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

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	CollectRevisions (ostream &)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
vtkBoundingBox *	BBox

double	Bounds [6]

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
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Detailed Description

implicit function for a bounding box

vtkBox computes the implicit function and/or gradient for a axis-aligned bounding box. (The superclasses transform can be used to modify this orientation.) Each side of the box is orthogonal to all other sides meeting along shared edges and all faces are orthogonal to the x-y-z coordinate axes. (If you wish to orient this box differently, recall that the superclass vtkImplicitFunction supports a transformation matrix.) vtkBox is a concrete implementation of vtkImplicitFunction.

See also: vtkCubeSource vtkImplicitFunction

Tests:: vtkBox (Tests)

Definition at line 41 of file vtkBox.h.

Member Typedef Documentation

typedef vtkImplicitFunction vtkBox::Superclass

Definition at line 44 of file vtkBox.h.

Constructor & Destructor Documentation

vtkBox::vtkBox ( )

protected

vtkBox::~vtkBox ( )

overrideprotected

Member Function Documentation

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

static

virtual vtkTypeBool vtkBox::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 vtkBox* vtkBox::SafeDownCast ( vtkObjectBase * o )

static

virtual vtkObjectBase* vtkBox::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkImplicitFunction.

vtkBox* vtkBox::NewInstance ( ) const

void vtkBox::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 vtkObject.

static vtkBox* vtkBox::New ( )

static

Construct box with center at (0,0,0) and each side of length 1.0.

double vtkBox::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.

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

overridevirtual

Evaluate the gradient of the box.

Implements vtkImplicitFunction.

void vtkBox::SetXMin ( double p[3] )

inline

Set / get the bounding box using various methods.

Definition at line 164 of file vtkBox.h.

void vtkBox::SetXMin	(	double	x,
		double	y,
		double	z
	)

Set / get the bounding box using various methods.

void vtkBox::GetXMin ( double p[3] )

Set / get the bounding box using various methods.

void vtkBox::GetXMin	(	double &	x,
		double &	y,
		double &	z
	)

Set / get the bounding box using various methods.

void vtkBox::SetXMax ( double p[3] )

inline

Definition at line 169 of file vtkBox.h.

void vtkBox::SetXMax	(	double	x,
		double	y,
		double	z
	)

void vtkBox::GetXMax ( double p[3] )

void vtkBox::GetXMax	(	double &	x,
		double &	y,
		double &	z
	)

void vtkBox::SetBounds	(	double	xMin,
		double	xMax,
		double	yMin,
		double	yMax,
		double	zMin,
		double	zMax
	)

void vtkBox::SetBounds ( const double bounds[6] )

void vtkBox::GetBounds	(	double &	xMin,
		double &	xMax,
		double &	yMin,
		double &	yMax,
		double &	zMin,
		double &	zMax
	)

void vtkBox::GetBounds ( double bounds[6] )

double* vtkBox::GetBounds ( )

void vtkBox::AddBounds ( const double bounds[6] )

A special method that allows union set operation on bounding boxes.

Start with a SetBounds(). Subsequent AddBounds() methods are union set operations on the original bounds. Retrieve the final bounds with a GetBounds() method.

static char vtkBox::IntersectBox	(	double	bounds[6],
		const double	origin[3],
		double	dir[3],
		double	coord[3],
		double &	t
	)

static

Bounding box intersection with line modified from Graphics Gems Vol I.

The method returns a non-zero value if the bounding box is hit. Origin[3] starts the ray, dir[3] is the vector components of the ray in the x-y-z directions, coord[3] is the location of hit, and t is the parametric coordinate along line. (Notes: the intersection ray dir[3] is NOT normalized. Valid intersections will only occur between 0<=t<=1.)

static int vtkBox::IntersectWithLine	(	const double	bounds[6],
		const double	p1[3],
		const double	p2[3],
		double &	t1,
		double &	t2,
		double	x1[3],
		double	x2[3],
		int &	plane1,
		int &	plane2
	)

static

Intersect a line with the box.

Give the endpoints of the line in p1 and p2. The parameteric distances from p1 to the entry and exit points are returned in t1 and t2, where t1 and t2 are clamped to the range [0,1]. The entry and exit planes are returned in plane1 and plane2 where integers (0, 1, 2, 3, 4, 5) stand for the (xmin, xmax, ymin, ymax, zmin, zmax) planes respectively, and a value of -1 means that no intersection occurred. The actual intersection coordinates are stored in x1 and x2, which can be set to nullptr of you do not need them to be returned. The function return value will be zero if the line is wholly outside of the box.

static vtkTypeBool vtkBox::IntersectWithPlane	(	double	bounds[6],
		double	origin[3],
		double	normal[3]
	)

static

Plane intersection with the box.

The plane is infinite in extent and defined by an origin and normal. The function indicates whether the plane intersects, not the particulars of intersection points and such. The function returns non-zero if the plane and box intersect; zero otherwise.

static vtkTypeBool vtkBox::IntersectWithPlane	(	double	bounds[6],
		double	origin[3],
		double	normal[3],
		double	xints[18]
	)

static

Plane intersection with the box.

The plane is infinite in extent and defined by an origin and normal. The function returns the number of intersection points, and if does, up to six ordered intersection points are provided (i.e., the points are ordered and form a valid polygon). Thus the function returns non-zero if the plane and box intersect; zero otherwise. Note that if there is an intersection, the number of intersections ranges from [3,6]. xints memory layout is consistent with vtkPoints array layout and is organized as (xyz, xyz, xyz, xyz, xyz, xyz).

Member Data Documentation

vtkBoundingBox* vtkBox::BBox

protected

Definition at line 154 of file vtkBox.h.

double vtkBox::Bounds[6]

protected

Definition at line 155 of file vtkBox.h.

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

/home/demarle/Source/VTK/release/8.2/build/Utilities/Doxygen/dox/Common/DataModel/vtkBox.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation