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vtkIncrementalPointLocator Class Referenceabstract

Abstract class in support of both point location and point insertion. More...

#include <vtkIncrementalPointLocator.h>

Inheritance diagram for vtkIncrementalPointLocator:
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Collaboration diagram for vtkIncrementalPointLocator:
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Public Types

typedef vtkAbstractPointLocator Superclass
 
- Public Types inherited from vtkAbstractPointLocator
typedef vtkLocator Superclass
 Standard type and print methods. More...
 
- Public Types inherited from vtkLocator
typedef vtkObject Superclass
 Standard type and print methods. More...
 

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...
 
vtkIncrementalPointLocatorNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses. More...
 
virtual vtkIdType FindClosestInsertedPoint (const double x[3])=0
 Given a point x assumed to be covered by the search structure, return the index of the closest point (already inserted to the search structure) regardless of the associated minimum squared distance relative to the squared insertion-tolerance distance. More...
 
virtual int InitPointInsertion (vtkPoints *newPts, const double bounds[6])=0
 Initialize the point insertion process. More...
 
virtual int InitPointInsertion (vtkPoints *newPts, const double bounds[6], vtkIdType estSize)=0
 Initialize the point insertion process. More...
 
virtual vtkIdType IsInsertedPoint (double x, double y, double z)=0
 Determine whether or not a given point has been inserted. More...
 
virtual vtkIdType IsInsertedPoint (const double x[3])=0
 Determine whether or not a given point has been inserted. More...
 
virtual int InsertUniquePoint (const double x[3], vtkIdType &ptId)=0
 Insert a point unless there has been a duplicate in the search structure. More...
 
virtual void InsertPoint (vtkIdType ptId, const double x[3])=0
 Insert a given point with a specified point index ptId. More...
 
virtual vtkIdType InsertNextPoint (const double x[3])=0
 Insert a given point and return the point index. More...
 
- Public Member Functions inherited from vtkAbstractPointLocator
vtkAbstractPointLocatorNewInstance () const
 
virtual vtkIdType FindClosestPoint (const double x[3])=0
 Given a position x, return the id of the point closest to it. More...
 
vtkIdType FindClosestPoint (double x, double y, double z)
 
virtual vtkIdType FindClosestPointWithinRadius (double radius, const double x[3], double &dist2)=0
 Given a position x and a radius r, return the id of the point closest to the point in that radius. More...
 
virtual void FindClosestNPoints (int N, const double x[3], vtkIdList *result)=0
 Find the closest N points to a position. More...
 
void FindClosestNPoints (int N, double x, double y, double z, vtkIdList *result)
 
virtual void FindPointsWithinRadius (double R, const double x[3], vtkIdList *result)=0
 Find all points within a specified radius R of position x. More...
 
void FindPointsWithinRadius (double R, double x, double y, double z, vtkIdList *result)
 
virtual double * GetBounds ()
 Provide an accessor to the bounds. More...
 
virtual void GetBounds (double *)
 
virtual vtkIdType GetNumberOfBuckets ()
 Return the total number of buckets in the locator. More...
 
- Public Member Functions inherited from vtkLocator
vtkLocatorNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses. More...
 
virtual void SetDataSet (vtkDataSet *)
 Build the locator from the points/cells defining this dataset. More...
 
virtual vtkDataSetGetDataSet ()
 
virtual void SetMaxLevel (int)
 Set the maximum allowable level for the tree. More...
 
virtual int GetMaxLevel ()
 
virtual int GetLevel ()
 Get the level of the locator (determined automatically if Automatic is true). More...
 
virtual void SetAutomatic (vtkTypeBool)
 Boolean controls whether locator depth/resolution of locator is computed automatically from average number of entities in bucket. More...
 
virtual vtkTypeBool GetAutomatic ()
 
virtual void AutomaticOn ()
 
virtual void AutomaticOff ()
 
virtual void SetTolerance (double)
 Specify absolute tolerance (in world coordinates) for performing geometric operations. More...
 
virtual double GetTolerance ()
 
virtual void Update ()
 Cause the locator to rebuild itself if it or its input dataset has changed. More...
 
virtual void Initialize ()
 Initialize locator. More...
 
virtual void BuildLocator ()=0
 Build the locator from the input dataset. More...
 
virtual void FreeSearchStructure ()=0
 Free the memory required for the spatial data structure. More...
 
virtual void GenerateRepresentation (int level, vtkPolyData *pd)=0
 Method to build a representation at a particular level. More...
 
virtual vtkMTimeType GetBuildTime ()
 Return the time of the last data structure build. More...
 
void Register (vtkObjectBase *o) override
 Handle the PointSet <-> Locator loop. More...
 
void UnRegister (vtkObjectBase *o) override
 Decrease the reference count (release by another object). 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...
 
virtual vtkMTimeType GetMTime ()
 Return this object's modified time. More...
 
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)
 
vtkCommandGetCommand (unsigned long tag)
 
void RemoveObserver (vtkCommand *)
 
void RemoveObservers (unsigned long event, vtkCommand *)
 
void RemoveObservers (const char *event, vtkCommand *)
 
vtkTypeBool HasObserver (unsigned long event, vtkCommand *)
 
vtkTypeBool HasObserver (const char *event, vtkCommand *)
 
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)
 
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)
 
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)
 
int InvokeEvent (unsigned long event)
 
int InvokeEvent (const char *event)
 
- 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 PrintHeader (ostream &os, vtkIndent indent)
 
virtual void PrintTrailer (ostream &os, vtkIndent indent)
 
int GetReferenceCount ()
 Return the current reference count of this object. More...
 
void SetReferenceCount (int)
 Sets the reference count. More...
 
void PrintRevisions (ostream &)
 Legacy. More...
 

Static Public Member Functions

static vtkTypeBool IsTypeOf (const char *type)
 
static vtkIncrementalPointLocatorSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkAbstractPointLocator
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkAbstractPointLocatorSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkLocator
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkLocatorSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkObject
static vtkObjectNew ()
 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 ()
 
static void GlobalWarningDisplayOff ()
 
static int GetGlobalWarningDisplay ()
 
- 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 vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkIncrementalPointLocator ()
 
 ~vtkIncrementalPointLocator () override
 
- Protected Member Functions inherited from vtkAbstractPointLocator
 vtkAbstractPointLocator ()
 
 ~vtkAbstractPointLocator () override
 
- Protected Member Functions inherited from vtkLocator
 vtkLocator ()
 
 ~vtkLocator () override
 
void ReportReferences (vtkGarbageCollector *) 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 ()
 
- Protected Member Functions inherited from vtkObjectBase
 vtkObjectBase ()
 
virtual ~vtkObjectBase ()
 
virtual void CollectRevisions (ostream &)
 
 vtkObjectBase (const vtkObjectBase &)
 
void operator= (const vtkObjectBase &)
 

Additional Inherited Members

- Protected Attributes inherited from vtkAbstractPointLocator
double Bounds [6]
 
vtkIdType NumberOfBuckets
 
- Protected Attributes inherited from vtkLocator
vtkDataSetDataSet
 
vtkTypeBool Automatic
 
double Tolerance
 
int MaxLevel
 
int Level
 
vtkTimeStamp BuildTime
 
- 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

Abstract class in support of both point location and point insertion.

Compared to a static point locator for pure location functionalities through some search structure established from a fixed set of points, an incremental point locator allows for, in addition, point insertion capabilities, with the search structure maintaining a dynamically increasing number of points. There are two incremental point locators, i.e., vtkPointLocator and vtkIncrementalOctreePointLocator. As opposed to the uniform bin-based search structure (adopted in vtkPointLocator) with a fixed spatial resolution, an octree mechanism (employed in vtkIncrementalOctreePointlocator) resorts to a hierarchy of tree-like sub-division of the 3D data domain. Thus it enables data-aware multi- resolution and accordingly accelerated point location as well as point insertion, particularly when handling a radically imbalanced layout of points as not uncommon in datasets defined on adaptive meshes. In other words, vtkIncrementalOctreePointLocator is an octree-based accelerated implementation of all functionalities of vtkPointLocator.

See also
vtkLocator, vtkIncrementalOctreePointLocator, vtkPointLocator, vtkMergePoints vtkStaticPointLocator

Definition at line 51 of file vtkIncrementalPointLocator.h.

Member Typedef Documentation

◆ Superclass

Definition at line 54 of file vtkIncrementalPointLocator.h.

Constructor & Destructor Documentation

◆ vtkIncrementalPointLocator()

vtkIncrementalPointLocator::vtkIncrementalPointLocator ( )
protected

◆ ~vtkIncrementalPointLocator()

vtkIncrementalPointLocator::~vtkIncrementalPointLocator ( )
overrideprotected

Member Function Documentation

◆ IsTypeOf()

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

◆ IsA()

virtual vtkTypeBool vtkIncrementalPointLocator::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 vtkAbstractPointLocator.

Reimplemented in vtkIncrementalOctreePointLocator, vtkPointLocator, vtkSMPMergePoints, vtkNonMergingPointLocator, and vtkMergePoints.

◆ SafeDownCast()

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

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkIncrementalPointLocator::NewInstanceInternal ( ) const
protectedvirtual

◆ NewInstance()

vtkIncrementalPointLocator* vtkIncrementalPointLocator::NewInstance ( ) const

◆ PrintSelf()

void vtkIncrementalPointLocator::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 vtkAbstractPointLocator.

Reimplemented in vtkPointLocator, vtkSMPMergePoints, vtkNonMergingPointLocator, and vtkMergePoints.

◆ FindClosestInsertedPoint()

virtual vtkIdType vtkIncrementalPointLocator::FindClosestInsertedPoint ( const double  x[3])
pure virtual

Given a point x assumed to be covered by the search structure, return the index of the closest point (already inserted to the search structure) regardless of the associated minimum squared distance relative to the squared insertion-tolerance distance.

This method is used when performing incremental point insertion. Note -1 indicates that no point is found. InitPointInsertion() should have been called in advance.

Implemented in vtkPointLocator, and vtkIncrementalOctreePointLocator.

◆ InitPointInsertion() [1/2]

virtual int vtkIncrementalPointLocator::InitPointInsertion ( vtkPoints newPts,
const double  bounds[6] 
)
pure virtual

Initialize the point insertion process.

newPts is an object, storing 3D point coordinates, to which incremental point insertion puts coordinates. It is created and provided by an external VTK class. Argument bounds represents the spatial bounding box, into which the points fall.

Implemented in vtkIncrementalOctreePointLocator, and vtkPointLocator.

◆ InitPointInsertion() [2/2]

virtual int vtkIncrementalPointLocator::InitPointInsertion ( vtkPoints newPts,
const double  bounds[6],
vtkIdType  estSize 
)
pure virtual

Initialize the point insertion process.

newPts is an object, storing 3D point coordinates, to which incremental point insertion puts coordinates. It is created and provided by an external VTK class. Argument bounds represents the spatial bounding box, into which the points fall.

Implemented in vtkIncrementalOctreePointLocator, and vtkPointLocator.

◆ IsInsertedPoint() [1/2]

virtual vtkIdType vtkIncrementalPointLocator::IsInsertedPoint ( double  x,
double  y,
double  z 
)
pure virtual

Determine whether or not a given point has been inserted.

Return the id of the already inserted point if true, else return -1. InitPointInsertion() should have been called in advance.

Implemented in vtkNonMergingPointLocator, vtkIncrementalOctreePointLocator, vtkPointLocator, and vtkMergePoints.

◆ IsInsertedPoint() [2/2]

virtual vtkIdType vtkIncrementalPointLocator::IsInsertedPoint ( const double  x[3])
pure virtual

Determine whether or not a given point has been inserted.

Return the id of the already inserted point if true, else return -1. InitPointInsertion() should have been called in advance.

Implemented in vtkNonMergingPointLocator, vtkIncrementalOctreePointLocator, vtkPointLocator, and vtkMergePoints.

◆ InsertUniquePoint()

virtual int vtkIncrementalPointLocator::InsertUniquePoint ( const double  x[3],
vtkIdType ptId 
)
pure virtual

Insert a point unless there has been a duplicate in the search structure.

This method is not thread safe.

Implemented in vtkPointLocator, vtkNonMergingPointLocator, vtkMergePoints, and vtkIncrementalOctreePointLocator.

◆ InsertPoint()

virtual void vtkIncrementalPointLocator::InsertPoint ( vtkIdType  ptId,
const double  x[3] 
)
pure virtual

Insert a given point with a specified point index ptId.

InitPointInsertion() should have been called prior to this function. Also, IsInsertedPoint() should have been called in advance to ensure that the given point has not been inserted unless point duplication is allowed.

Implemented in vtkIncrementalOctreePointLocator, and vtkPointLocator.

◆ InsertNextPoint()

virtual vtkIdType vtkIncrementalPointLocator::InsertNextPoint ( const double  x[3])
pure virtual

Insert a given point and return the point index.

InitPointInsertion() should have been called prior to this function. Also, IsInsertedPoint() should have been called in advance to ensure that the given point has not been inserted unless point duplication is allowed.

Implemented in vtkIncrementalOctreePointLocator, and vtkPointLocator.


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