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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)
 Standard type and print methods. More...
 
vtkIncrementalPointLocatorNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Standard type and print methods. 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
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 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)
 Given a position x, return the id of the point closest to it. 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)
 Find the closest N points to a position. More...
 
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)
 Find all points within a specified radius R of position x. More...
 
virtual doubleGetBounds ()
 Provide an accessor to the bounds. More...
 
virtual void GetBounds (double *)
 Provide an accessor to the bounds. More...
 
virtual vtkIdType GetNumberOfBuckets ()
 Return the total number of buckets in the locator. More...
 
vtkAbstractPointLocatorNewInstance () const
 Standard type and print methods. More...
 
- Public Member Functions inherited from vtkLocator
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 void SetDataSet (vtkDataSet *)
 Build the locator from the points/cells defining this dataset. More...
 
virtual vtkDataSetGetDataSet ()
 Build the locator from the points/cells defining this dataset. More...
 
virtual void SetMaxLevel (int)
 Set the maximum allowable level for the tree. More...
 
virtual int GetMaxLevel ()
 Set the maximum allowable level for the tree. More...
 
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 ()
 Boolean controls whether locator depth/resolution of locator is computed automatically from average number of entities in bucket. More...
 
virtual void AutomaticOn ()
 Boolean controls whether locator depth/resolution of locator is computed automatically from average number of entities in bucket. More...
 
virtual void AutomaticOff ()
 Boolean controls whether locator depth/resolution of locator is computed automatically from average number of entities in bucket. More...
 
virtual void SetTolerance (double)
 Specify absolute tolerance (in world coordinates) for performing geometric operations. More...
 
virtual double GetTolerance ()
 Specify absolute tolerance (in world coordinates) for performing geometric operations. 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
 Handle the PointSet <-> Locator loop. More...
 
vtkLocatorNewInstance () const
 Standard type and print methods. More...
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Standard type and print methods. 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...
 
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...
 
vtkCommandGetCommand (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...
 
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 vtkIncrementalPointLocatorSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkAbstractPointLocator
static vtkTypeBool IsTypeOf (const char *type)
 Standard type and print methods. More...
 
static vtkAbstractPointLocatorSafeDownCast (vtkObjectBase *o)
 Standard type and print methods. More...
 
- Static Public Member Functions inherited from vtkLocator
static vtkTypeBool IsTypeOf (const char *type)
 Standard type and print methods. More...
 
static vtkLocatorSafeDownCast (vtkObjectBase *o)
 Standard type and print methods. More...
 
- 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 ()
 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 vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () const
 Standard type and print methods. More...
 
 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 ()
 These methods allow a command to exclusively grab all events. More...
 
- 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
vtkAtomicInt32 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

Definition at line 55 of file vtkIncrementalPointLocator.h.

Constructor & Destructor Documentation

vtkIncrementalPointLocator::vtkIncrementalPointLocator ( )
protected
vtkIncrementalPointLocator::~vtkIncrementalPointLocator ( )
overrideprotected

Member Function Documentation

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

Standard type and print methods.

Reimplemented from vtkAbstractPointLocator.

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

static vtkIncrementalPointLocator* vtkIncrementalPointLocator::SafeDownCast ( vtkObjectBase o)
static
virtual vtkObjectBase* vtkIncrementalPointLocator::NewInstanceInternal ( ) const
protectedvirtual

Standard type and print methods.

Reimplemented from vtkAbstractPointLocator.

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

vtkIncrementalPointLocator* vtkIncrementalPointLocator::NewInstance ( ) const
void vtkIncrementalPointLocator::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
overridevirtual

Standard type and print methods.

Reimplemented from vtkAbstractPointLocator.

Reimplemented in vtkPointLocator, vtkNonMergingPointLocator, vtkSMPMergePoints, and vtkMergePoints.

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.

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.

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.

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 vtkIncrementalOctreePointLocator, vtkPointLocator, vtkNonMergingPointLocator, and vtkMergePoints.

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 vtkIncrementalOctreePointLocator, vtkPointLocator, vtkNonMergingPointLocator, and vtkMergePoints.

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 vtkIncrementalOctreePointLocator, vtkPointLocator, vtkNonMergingPointLocator, and vtkMergePoints.

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.

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: