vtkPointsProjectedHull Class Reference

the convex hull of the orthogonal projection of the vtkPoints in the 3 coordinate directions More...

#include <vtkPointsProjectedHull.h>

Inheritance diagram for vtkPointsProjectedHull:

Collaboration diagram for vtkPointsProjectedHull:

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.
vtkPointsProjectedHull *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
int	RectangleIntersectionX (vtkPoints *R)
	determine whether the resulting rectangle intersects the convex hull of the projection of the points along that axis.
int	RectangleIntersectionX (float ymin, float ymax, float zmin, float zmax)
	the convex hull of the projection of the points along the positive X-axis.
int	RectangleIntersectionX (double ymin, double ymax, double zmin, double zmax)
int	RectangleIntersectionY (vtkPoints *R)
	of the parallel projection along the Y axis of the points
int	RectangleIntersectionY (float zmin, float zmax, float xmin, float xmax)
	the convex hull of the projection of the points along the positive Y-axis.
int	RectangleIntersectionY (double zmin, double zmax, double xmin, double xmax)
int	RectangleIntersectionZ (vtkPoints *R)
	of the parallel projection along the Z axis of the points
int	RectangleIntersectionZ (float xmin, float xmax, float ymin, float ymax)
	the convex hull of the projection of the points along the positive Z-axis.
int	RectangleIntersectionZ (double xmin, double xmax, double ymin, double ymax)
int	GetCCWHullX (float *pts, int len)
	Returns the coordinates (y,z) of the points in the convex hull of the projection of the points down the positive x-axis.
int	GetCCWHullX (double *pts, int len)
int	GetCCWHullY (float *pts, int len)
	Returns the coordinates (z, x) of the points in the convex hull of the projection of the points down the positive y-axis.
int	GetCCWHullY (double *pts, int len)
int	GetCCWHullZ (float *pts, int len)
	Returns the coordinates (x, y) of the points in the convex hull of the projection of the points down the positive z-axis.
int	GetCCWHullZ (double *pts, int len)
int	GetSizeCCWHullX ()
	Returns the number of points in the convex hull of the projection of the points down the positive x-axis.
int	GetSizeCCWHullY ()
	Returns the number of points in the convex hull of the projection of the points down the positive y-axis.
int	GetSizeCCWHullZ ()
	Returns the number of points in the convex hull of the projection of the points down the positive z-axis.
void	Initialize () override
	Return object to instantiated state.
void	Reset () override
	Make object look empty but do not delete memory.
void	Update ()
	Forces recalculation of convex hulls, use this if you delete/add points.
Public Member Functions inherited from vtkPoints
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.
vtkPoints *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
virtual vtkTypeBool	Allocate (vtkIdType sz, vtkIdType ext=1000)
	Allocate initial memory size.
virtual void	Initialize ()
	Return object to instantiated state.
virtual void	SetData (vtkDataArray *)
	Set/Get the underlying data array.
vtkDataArray *	GetData ()
virtual int	GetDataType () const
	Return the underlying data type.
virtual void	SetDataType (int dataType)
	Specify the underlying data type of the object.
void	SetDataTypeToBit ()
void	SetDataTypeToChar ()
void	SetDataTypeToUnsignedChar ()
void	SetDataTypeToShort ()
void	SetDataTypeToUnsignedShort ()
void	SetDataTypeToInt ()
void	SetDataTypeToUnsignedInt ()
void	SetDataTypeToLong ()
void	SetDataTypeToUnsignedLong ()
void	SetDataTypeToFloat ()
void	SetDataTypeToDouble ()
void *	GetVoidPointer (const int id)
	Return a void pointer.
virtual void	Squeeze ()
	Reclaim any extra memory.
virtual void	Reset ()
	Make object look empty but do not delete memory.
unsigned long	GetActualMemorySize ()
	Return the memory in kibibytes (1024 bytes) consumed by this attribute data.
vtkIdType	GetNumberOfPoints () const
	Return number of points in array.
double *	GetPoint (vtkIdType id)
	Return a pointer to a double point x[3] for a specific id.
void	GetPoint (vtkIdType id, double x[3])
	Copy point components into user provided array v[3] for specified id.
void	SetPoint (vtkIdType id, const float x[3])
	Insert point into object.
void	SetPoint (vtkIdType id, const double x[3])
void	SetPoint (vtkIdType id, double x, double y, double z)
void	InsertPoints (vtkIdList *dstIds, vtkIdList *srcIds, vtkPoints *source)
	Copy the points indexed in srcIds from the source array to the tuple locations indexed by dstIds in this array.
void	InsertPoints (vtkIdType dstStart, vtkIdType n, vtkIdType srcStart, vtkPoints *source)
	Copy n consecutive points starting at srcStart from the source array to this array, starting at the dstStart location.
vtkIdType	InsertNextPoint (const float x[3])
	Insert point into next available slot.
vtkIdType	InsertNextPoint (const double x[3])
vtkIdType	InsertNextPoint (double x, double y, double z)
void	SetNumberOfPoints (vtkIdType numPoints)
	Specify the number of points for this object to hold.
vtkTypeBool	Resize (vtkIdType numPoints)
	Resize the internal array while conserving the data.
void	GetPoints (vtkIdList *ptId, vtkPoints *outPoints)
	Given a list of pt ids, return an array of points.
virtual void	ComputeBounds ()
	Determine (xmin,xmax, ymin,ymax, zmin,zmax) bounds of points.
double *	GetBounds ()
	Return the bounds of the points.
void	GetBounds (double bounds[6])
	Return the bounds of the points.
vtkMTimeType	GetMTime () override
	The modified time of the points.
void	Modified () override
	Update the modification time for this object and its Data.
virtual void	DeepCopy (vtkPoints *ad)
	Different ways to copy data.
virtual void	ShallowCopy (vtkPoints *ad)
	Different ways to copy data.
void	InsertPoint (vtkIdType id, const float x[3])
	Insert point into object.
void	InsertPoint (vtkIdType id, const double x[3])
	Insert point into object.
void	InsertPoint (vtkIdType id, double x, double y, double z)
	Insert point into object.
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 vtkTypeBool	IsTypeOf (const char *type)
static vtkPointsProjectedHull *	SafeDownCast (vtkObjectBase *o)
static vtkPointsProjectedHull *	New ()
Static Public Member Functions inherited from vtkPoints
static vtkPoints *	New (int dataType)
static vtkPoints *	New ()
static vtkTypeBool	IsTypeOf (const char *type)
static vtkPoints *	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
	vtkPointsProjectedHull ()
	~vtkPointsProjectedHull () override
Protected Member Functions inherited from vtkPoints
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkPoints (int dataType=VTK_FLOAT)
	~vtkPoints () 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 &)

Additional Inherited Members
Public Types inherited from vtkPoints
typedef vtkObject	Superclass
Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()
static vtkReallocingFunction	GetCurrentReallocFunction ()
static vtkFreeingFunction	GetCurrentFreeFunction ()
static vtkFreeingFunction	GetAlternateFreeFunction ()
Protected Attributes inherited from vtkPoints
double	Bounds [6]
vtkTimeStamp	ComputeTime
vtkDataArray *	Data
Protected Attributes inherited from vtkObject
bool	Debug
vtkTimeStamp	MTime
vtkSubjectHelper *	SubjectHelper
Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount
vtkWeakPointerBase **	WeakPointers

Detailed Description

the convex hull of the orthogonal projection of the vtkPoints in the 3 coordinate directions

a subclass of vtkPoints, it maintains the counter clockwise convex hull of the points (projected orthogonally in the three coordinate directions) and has a method to test for intersection of that hull with an axis aligned rectangle. This is used for intersection tests of 3D volumes.

Online Examples:

PointsProjectedHull

Definition at line 57 of file vtkPointsProjectedHull.h.

Constructor & Destructor Documentation

vtkPointsProjectedHull()

vtkPointsProjectedHull::vtkPointsProjectedHull ( )

protected

~vtkPointsProjectedHull()

vtkPointsProjectedHull::~vtkPointsProjectedHull ( )

overrideprotected

Member Function Documentation

IsTypeOf()

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

static

IsA()

virtual vtkTypeBool vtkPointsProjectedHull::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 vtkPoints.

SafeDownCast()

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

static

NewInstanceInternal()

virtual vtkObjectBase * vtkPointsProjectedHull::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkPoints.

NewInstance()

vtkPointsProjectedHull * vtkPointsProjectedHull::NewInstance

(

)

const

PrintSelf()

void vtkPointsProjectedHull::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 vtkPoints.

New()

static vtkPointsProjectedHull * vtkPointsProjectedHull::New ( )

static

RectangleIntersectionX() [1/3]

int vtkPointsProjectedHull::RectangleIntersectionX

(

vtkPoints *

R

)

determine whether the resulting rectangle intersects the convex hull of the projection of the points along that axis.

RectangleIntersectionX() [2/3]

int vtkPointsProjectedHull::RectangleIntersectionX	(	float	ymin,
		float	ymax,
		float	zmin,
		float	zmax
	)

the convex hull of the projection of the points along the positive X-axis.

RectangleIntersectionX() [3/3]

int vtkPointsProjectedHull::RectangleIntersectionX	(	double	ymin,
		double	ymax,
		double	zmin,
		double	zmax
	)

RectangleIntersectionY() [1/3]

int vtkPointsProjectedHull::RectangleIntersectionY

(

vtkPoints *

R

)

of the parallel projection along the Y axis of the points

RectangleIntersectionY() [2/3]

int vtkPointsProjectedHull::RectangleIntersectionY	(	float	zmin,
		float	zmax,
		float	xmin,
		float	xmax
	)

the convex hull of the projection of the points along the positive Y-axis.

RectangleIntersectionY() [3/3]

int vtkPointsProjectedHull::RectangleIntersectionY	(	double	zmin,
		double	zmax,
		double	xmin,
		double	xmax
	)

RectangleIntersectionZ() [1/3]

int vtkPointsProjectedHull::RectangleIntersectionZ

(

vtkPoints *

R

)

of the parallel projection along the Z axis of the points

RectangleIntersectionZ() [2/3]

int vtkPointsProjectedHull::RectangleIntersectionZ	(	float	xmin,
		float	xmax,
		float	ymin,
		float	ymax
	)

the convex hull of the projection of the points along the positive Z-axis.

RectangleIntersectionZ() [3/3]

int vtkPointsProjectedHull::RectangleIntersectionZ	(	double	xmin,
		double	xmax,
		double	ymin,
		double	ymax
	)

GetCCWHullX() [1/2]

int vtkPointsProjectedHull::GetCCWHullX	(	float *	pts,
		int	len
	)

Returns the coordinates (y,z) of the points in the convex hull of the projection of the points down the positive x-axis.

pts has storage for len*2 values.

GetCCWHullX() [2/2]

int vtkPointsProjectedHull::GetCCWHullX	(	double *	pts,
		int	len
	)

GetCCWHullY() [1/2]

int vtkPointsProjectedHull::GetCCWHullY	(	float *	pts,
		int	len
	)

Returns the coordinates (z, x) of the points in the convex hull of the projection of the points down the positive y-axis.

pts has storage for len*2 values.

GetCCWHullY() [2/2]

int vtkPointsProjectedHull::GetCCWHullY	(	double *	pts,
		int	len
	)

GetCCWHullZ() [1/2]

int vtkPointsProjectedHull::GetCCWHullZ	(	float *	pts,
		int	len
	)

Returns the coordinates (x, y) of the points in the convex hull of the projection of the points down the positive z-axis.

pts has storage for len*2 values.

GetCCWHullZ() [2/2]

int vtkPointsProjectedHull::GetCCWHullZ	(	double *	pts,
		int	len
	)

GetSizeCCWHullX()

int vtkPointsProjectedHull::GetSizeCCWHullX

(

)

Returns the number of points in the convex hull of the projection of the points down the positive x-axis.

GetSizeCCWHullY()

int vtkPointsProjectedHull::GetSizeCCWHullY

(

)

Returns the number of points in the convex hull of the projection of the points down the positive y-axis.

GetSizeCCWHullZ()

int vtkPointsProjectedHull::GetSizeCCWHullZ

(

)

Returns the number of points in the convex hull of the projection of the points down the positive z-axis.

Initialize()

void vtkPointsProjectedHull::Initialize ( )

overridevirtual

Return object to instantiated state.

Reimplemented from vtkPoints.

Reset()

void vtkPointsProjectedHull::Reset ( )

inlineoverridevirtual

Make object look empty but do not delete memory.

Reimplemented from vtkPoints.

Definition at line 158 of file vtkPointsProjectedHull.h.

Update()

void vtkPointsProjectedHull::Update

(

)

Forces recalculation of convex hulls, use this if you delete/add points.

---

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

• Common/DataModel/vtkPointsProjectedHull.h