VTK  9.3.20241004
Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes | Friends | List of all members
vtkCellTreeLocator Class Reference

This class implements the data structures, construction algorithms for fast cell location. More...

#include <vtkCellTreeLocator.h>

Inheritance diagram for vtkCellTreeLocator:
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Collaboration diagram for vtkCellTreeLocator:
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Public Member Functions

bool GetLargeIds ()
 Inform the user as to whether large ids are being used.
 
int IntersectWithLine (const double a0[3], const double a1[3], double tol, double &t, double x[3], double pcoords[3], int &subId, vtkIdType &cellId, vtkGenericCell *cell) override
 Return intersection point (if any) AND the cell which was intersected by the finite line.
 
int IntersectWithLine (const double p1[3], const double p2[3], double tol, vtkPoints *points, vtkIdList *cellIds, vtkGenericCell *cell) override
 Take the passed line segment and intersect it with the data set.
 
void FindCellsWithinBounds (double *bbox, vtkIdList *cells) override
 Return a list of unique cell ids inside of a given bounding box.
 
void FindCellsAlongLine (const double p1[3], const double p2[3], double tolerance, vtkIdList *cellsIds) override
 Take the passed line segment and intersect it with the data set.
 
vtkIdType FindCell (double pos[3], double vtkNotUsed(tol2), vtkGenericCell *cell, int &subId, double pcoords[3], double *weights) override
 Find the cell containing a given point.
 
void ShallowCopy (vtkAbstractCellLocator *locator) override
 Shallow copy of a vtkCellTreeLocator.
 
virtual vtkIdType FindCell (double x[3])
 Returns the Id of the cell containing the point, returns -1 if no cell found.
 
virtual vtkIdType FindCell (double x[3], double tol2, vtkGenericCell *GenCell, double pcoords[3], double *weights)
 Find the cell containing a given point.
 
virtual vtkIdType FindCell (double x[3], double tol2, vtkGenericCell *GenCell, int &subId, double pcoords[3], double *weights)
 Find the cell containing a given point.
 
virtual int IntersectWithLine (const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId)
 Return intersection point (if any) of finite line with cells contained in cell locator.
 
virtual int IntersectWithLine (const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId, vtkIdType &cellId)
 Return intersection point (if any) AND the cell which was intersected by the finite line.
 
virtual int IntersectWithLine (const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId, vtkIdType &cellId, vtkGenericCell *cell)
 Return intersection point (if any) AND the cell which was intersected by the finite line.
 
virtual int IntersectWithLine (const double p1[3], const double p2[3], vtkPoints *points, vtkIdList *cellIds)
 Take the passed line segment and intersect it with the data set.
 
virtual int IntersectWithLine (const double p1[3], const double p2[3], double tol, vtkPoints *points, vtkIdList *cellIds)
 Take the passed line segment and intersect it with the data set.
 
virtual int IntersectWithLine (const double p1[3], const double p2[3], double tol, vtkPoints *points, vtkIdList *cellIds, vtkGenericCell *cell)
 Take the passed line segment and intersect it with the data set.
 
virtual void SetNumberOfBuckets (int)
 Set/Get the number of buckets.
 
virtual int GetNumberOfBuckets ()
 Set/Get the number of buckets.
 
void FreeSearchStructure () override
 Satisfy vtkLocator abstract interface.
 
void BuildLocator () override
 Satisfy vtkLocator abstract interface.
 
void ForceBuildLocator () override
 Satisfy vtkLocator abstract interface.
 
void GenerateRepresentation (int level, vtkPolyData *pd) override
 Satisfy vtkLocator abstract interface.
 
- Public Member Functions inherited from vtkAbstractCellLocator
virtual vtkTypeBool IsA (const char *type)
 Standard type and print methods.
 
vtkAbstractCellLocatorNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses.
 
void ComputeCellBounds ()
 This function can be used either internally or externally to compute only the cached cell bounds if CacheCellBounds is on.
 
virtual int IntersectWithLine (const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId)
 Return intersection point (if any) of finite line with cells contained in cell locator.
 
virtual int IntersectWithLine (const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId, vtkIdType &cellId)
 Return intersection point (if any) AND the cell which was intersected by the finite line.
 
virtual int IntersectWithLine (const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId, vtkIdType &cellId, vtkGenericCell *cell)
 Return intersection point (if any) AND the cell which was intersected by the finite line.
 
virtual int IntersectWithLine (const double p1[3], const double p2[3], vtkPoints *points, vtkIdList *cellIds)
 Take the passed line segment and intersect it with the data set.
 
virtual int IntersectWithLine (const double p1[3], const double p2[3], double tol, vtkPoints *points, vtkIdList *cellIds)
 Take the passed line segment and intersect it with the data set.
 
virtual int IntersectWithLine (const double p1[3], const double p2[3], double tol, vtkPoints *points, vtkIdList *cellIds, vtkGenericCell *cell)
 Take the passed line segment and intersect it with the data set.
 
virtual void FindClosestPoint (const double x[3], double closestPoint[3], vtkIdType &cellId, int &subId, double &dist2)
 Return the closest point and the cell which is closest to the point x.
 
virtual void FindClosestPoint (const double x[3], double closestPoint[3], vtkGenericCell *cell, vtkIdType &cellId, int &subId, double &dist2)
 Return the closest point and the cell which is closest to the point x.
 
virtual vtkIdType FindClosestPointWithinRadius (double x[3], double radius, double closestPoint[3], vtkIdType &cellId, int &subId, double &dist2)
 Return the closest point within a specified radius and the cell which is closest to the point x.
 
virtual vtkIdType FindClosestPointWithinRadius (double x[3], double radius, double closestPoint[3], vtkGenericCell *cell, vtkIdType &cellId, int &subId, double &dist2)
 Return the closest point within a specified radius and the cell which is closest to the point x.
 
virtual vtkIdType FindClosestPointWithinRadius (double x[3], double radius, double closestPoint[3], vtkGenericCell *cell, vtkIdType &cellId, int &subId, double &dist2, int &inside)
 Return the closest point within a specified radius and the cell which is closest to the point x.
 
virtual void FindCellsWithinBounds (double *bbox, vtkIdList *cells)
 Return a list of unique cell ids inside of a given bounding box.
 
virtual void FindCellsAlongLine (const double p1[3], const double p2[3], double tolerance, vtkIdList *cells)
 Take the passed line segment and intersect it with the data set.
 
virtual void FindCellsAlongPlane (const double o[3], const double n[3], double tolerance, vtkIdList *cells)
 Given an unbounded plane defined by an origin o[3] and unit normal n[3], return the list of unique cell ids in the buckets containing the plane.
 
virtual vtkIdType FindCell (double x[3])
 Returns the Id of the cell containing the point, returns -1 if no cell found.
 
virtual bool InsideCellBounds (double x[3], vtkIdType cell_ID)
 Quickly test if a point is inside the bounds of a particular cell.
 
virtual void ShallowCopy (vtkAbstractCellLocator *)
 Shallow copy of a vtkAbstractCellLocator.
 
virtual void SetNumberOfCellsPerNode (int)
 Specify the preferred/maximum number of cells in each node/bucket.
 
virtual int GetNumberOfCellsPerNode ()
 Specify the preferred/maximum number of cells in each node/bucket.
 
virtual void SetCacheCellBounds (vtkTypeBool)
 Boolean controls whether the bounds of each cell are computed only once and then saved.
 
virtual vtkTypeBool GetCacheCellBounds ()
 Boolean controls whether the bounds of each cell are computed only once and then saved.
 
virtual void CacheCellBoundsOn ()
 Boolean controls whether the bounds of each cell are computed only once and then saved.
 
virtual void CacheCellBoundsOff ()
 Boolean controls whether the bounds of each cell are computed only once and then saved.
 
virtual void SetRetainCellLists (vtkTypeBool)
 Boolean controls whether to maintain list of cells in each node.
 
virtual vtkTypeBool GetRetainCellLists ()
 Boolean controls whether to maintain list of cells in each node.
 
virtual void RetainCellListsOn ()
 Boolean controls whether to maintain list of cells in each node.
 
virtual void RetainCellListsOff ()
 Boolean controls whether to maintain list of cells in each node.
 
- Public Member Functions inherited from vtkLocator
virtual void Update ()
 Cause the locator to rebuild itself if it or its input dataset has changed.
 
virtual void Initialize ()
 Initialize locator.
 
virtual void BuildLocator ()=0
 Build the locator from the input dataset.
 
virtual void ForceBuildLocator ()
 Build the locator from the input dataset (even if UseExistingSearchStructure is on).
 
virtual void FreeSearchStructure ()=0
 Free the memory required for the spatial data structure.
 
virtual void GenerateRepresentation (int level, vtkPolyData *pd)=0
 Method to build a representation at a particular level.
 
virtual void SetDataSet (vtkDataSet *)
 Build the locator from the points/cells defining this dataset.
 
virtual vtkDataSetGetDataSet ()
 Build the locator from the points/cells defining this dataset.
 
virtual void SetMaxLevel (int)
 Set the maximum allowable level for the tree.
 
virtual int GetMaxLevel ()
 Set the maximum allowable level for the tree.
 
virtual int GetLevel ()
 Get the level of the locator (determined automatically if Automatic is true).
 
virtual void SetAutomatic (vtkTypeBool)
 Boolean controls whether locator depth/resolution of locator is computed automatically from average number of entities in bucket.
 
virtual vtkTypeBool GetAutomatic ()
 Boolean controls whether locator depth/resolution of locator is computed automatically from average number of entities in bucket.
 
virtual void AutomaticOn ()
 Boolean controls whether locator depth/resolution of locator is computed automatically from average number of entities in bucket.
 
virtual void AutomaticOff ()
 Boolean controls whether locator depth/resolution of locator is computed automatically from average number of entities in bucket.
 
virtual void SetTolerance (double)
 Specify absolute tolerance (in world coordinates) for performing geometric operations.
 
virtual double GetTolerance ()
 Specify absolute tolerance (in world coordinates) for performing geometric operations.
 
virtual void SetUseExistingSearchStructure (vtkTypeBool)
 Get/Set UseExistingSearchStructure, which when enabled it allows the locator to NOT be built again.
 
virtual vtkTypeBool GetUseExistingSearchStructure ()
 Get/Set UseExistingSearchStructure, which when enabled it allows the locator to NOT be built again.
 
virtual void UseExistingSearchStructureOn ()
 Get/Set UseExistingSearchStructure, which when enabled it allows the locator to NOT be built again.
 
virtual void UseExistingSearchStructureOff ()
 Get/Set UseExistingSearchStructure, which when enabled it allows the locator to NOT be built again.
 
virtual vtkMTimeType GetBuildTime ()
 Return the time of the last data structure build.
 
bool UsesGarbageCollector () const override
 Handle the PointSet <-> Locator loop.
 
vtkLocatorNewInstance () const
 Standard type and print methods.
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Standard type and print methods.
 
- 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)
 
vtkTypeBool InvokeEvent (unsigned long event)
 
vtkTypeBool InvokeEvent (const char *event)
 
std::string GetObjectDescription () const override
 The object description printed in messages and PrintSelf output.
 
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.
 
vtkCommandGetCommand (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.
 
vtkTypeBool InvokeEvent (unsigned long event, void *callData)
 This method invokes an event and return whether the event was aborted or not.
 
vtkTypeBool InvokeEvent (const char *event, void *callData)
 This method invokes an event and return whether the event was aborted or not.
 
virtual void SetObjectName (const std::string &objectName)
 Set/get the name of this object for reporting purposes.
 
virtual std::string GetObjectName () const
 Set/get the name of this object for reporting purposes.
 
- Public Member Functions inherited from vtkObjectBase
const char * GetClassName () const
 Return the class name as a string.
 
virtual std::string GetObjectDescription () const
 The object description printed in messages and PrintSelf output.
 
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.
 
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 vtkCellTreeLocatorNew ()
 Constructor sets the maximum number of cells in a leaf to 8 and number of buckets to 6.
 
- Static Public Member Functions inherited from vtkAbstractCellLocator
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkAbstractCellLocatorSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkLocator
static vtkTypeBool IsTypeOf (const char *type)
 Standard type and print methods.
 
static vtkLocatorSafeDownCast (vtkObjectBase *o)
 Standard type and print methods.
 
- 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.
 
static void BreakOnError ()
 This method is called when vtkErrorMacro executes.
 
static void SetGlobalWarningDisplay (vtkTypeBool 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 vtkTypeBool 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 vtkObjectBaseNew ()
 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

 vtkCellTreeLocator ()
 
 ~vtkCellTreeLocator () override
 
void BuildLocatorInternal () override
 This function is not pure virtual to maintain backwards compatibility.
 
- Protected Member Functions inherited from vtkAbstractCellLocator
virtual vtkObjectBaseNewInstanceInternal () const
 Standard type and print methods.
 
 vtkAbstractCellLocator ()
 
 ~vtkAbstractCellLocator () override
 
void UpdateInternalWeights ()
 To be called in FindCell(double[3]).
 
void GetCellBounds (vtkIdType cellId, double *&cellBoundsPtr)
 
virtual bool StoreCellBounds ()
 This command is used internally by the locator to copy all cell Bounds into the internal CellBounds array.
 
virtual void FreeCellBounds ()
 This command is used internally by the locator to copy all cell Bounds into the internal CellBounds array.
 
- Protected Member Functions inherited from vtkLocator
 vtkLocator ()
 
 ~vtkLocator () override
 
virtual void BuildLocatorInternal ()
 This function is not pure virtual to maintain backwards compatibility.
 
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.
 
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 *)
 
virtual void ObjectFinalize ()
 
 vtkObjectBase (const vtkObjectBase &)
 
void operator= (const vtkObjectBase &)
 

Protected Attributes

int NumberOfBuckets
 
bool LargeIds = false
 
detail::vtkCellTree * Tree
 
- Protected Attributes inherited from vtkAbstractCellLocator
int NumberOfCellsPerNode
 
vtkTypeBool RetainCellLists
 
vtkTypeBool CacheCellBounds
 
vtkNew< vtkGenericCellGenericCell
 
std::shared_ptr< std::vector< double > > CellBoundsSharedPtr
 
double * CellBounds
 
vtkTimeStamp WeightsTime
 This time stamp helps us decide if we want to update internal Weights array size.
 
std::vector< double > Weights
 This array is resized so that it can fit points from the cell hosting the most in the input data set.
 
- Protected Attributes inherited from vtkLocator
vtkDataSetDataSet
 
vtkTypeBool UseExistingSearchStructure
 
vtkTypeBool Automatic
 
double Tolerance
 
int MaxLevel
 
int Level
 
vtkTimeStamp BuildTime
 
- Protected Attributes inherited from vtkObject
bool Debug
 
vtkTimeStamp MTime
 
vtkSubjectHelper * SubjectHelper
 
std::string ObjectName
 
- Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t > ReferenceCount
 
vtkWeakPointerBase ** WeakPointers
 

Friends

template<typename >
struct detail::CellTree
 
template<typename >
struct detail::CellTreeBuilder
 
typedef vtkAbstractCellLocator Superclass
 Standard methods to print and obtain type-related information.
 
static vtkTypeBool IsTypeOf (const char *type)
 Standard methods to print and obtain type-related information.
 
static vtkCellTreeLocatorSafeDownCast (vtkObjectBase *o)
 Standard methods to print and obtain type-related information.
 
virtual vtkTypeBool IsA (const char *type)
 Standard methods to print and obtain type-related information.
 
vtkCellTreeLocatorNewInstance () const
 Standard methods to print and obtain type-related information.
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Standard methods to print and obtain type-related information.
 
virtual vtkObjectBaseNewInstanceInternal () const
 Standard methods to print and obtain type-related information.
 

Additional Inherited Members

- Public Types inherited from vtkAbstractCellLocator
typedef vtkLocator Superclass
 
- Public Types inherited from vtkLocator
typedef vtkObject Superclass
 Standard type and print methods.
 
- Static Protected Member Functions inherited from vtkAbstractCellLocator
static bool IsInBounds (const double bounds[6], const double x[3], double tol=0.0)
 
- Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction GetCurrentMallocFunction ()
 
static vtkReallocingFunction GetCurrentReallocFunction ()
 
static vtkFreeingFunction GetCurrentFreeFunction ()
 
static vtkFreeingFunction GetAlternateFreeFunction ()
 

Detailed Description

This class implements the data structures, construction algorithms for fast cell location.

Cell Tree is a bounding interval hierarchy based data structure, where child boxes do not form an exact split of the parent boxes along a dimension. Therefore two axis- aligned bounding planes (left max and right min) are stored for each node along a dimension. This class implements the data structure (Cell Tree Node) and its build and traversal algorithms described in the paper. Some methods in building and traversing the cell tree in this class were derived from avtCellLocatorBIH class in the VisIT Visualization Tool.

vtkCellTreeLocator utilizes the following parent class parameters:

vtkCellTreeLocator does NOT utilize the following parameters:

Warning
This class is templated. It may run slower than serial execution if the code is not optimized during compilation. Build in Release or ReleaseWithDebugInfo.

From the article: "Fast, Memory-Efficient Cell location in Unstructured Grids for Visualization" by Christoph Garth and Kenneth I. Joy in VisWeek, 2011.

See also
vtkAbstractCellLocator vtkCellLocator vtkStaticCellLocator vtkModifiedBSPTree vtkOBBTree
Online Examples:

Tests:
vtkCellTreeLocator (Tests)

Definition at line 80 of file vtkCellTreeLocator.h.

Member Typedef Documentation

◆ Superclass

Standard methods to print and obtain type-related information.

Definition at line 92 of file vtkCellTreeLocator.h.

Constructor & Destructor Documentation

◆ vtkCellTreeLocator()

vtkCellTreeLocator::vtkCellTreeLocator ( )
protected

◆ ~vtkCellTreeLocator()

vtkCellTreeLocator::~vtkCellTreeLocator ( )
overrideprotected

Member Function Documentation

◆ IsTypeOf()

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

Standard methods to print and obtain type-related information.

◆ IsA()

virtual vtkTypeBool vtkCellTreeLocator::IsA ( const char *  type)
virtual

Standard methods to print and obtain type-related information.

Reimplemented from vtkAbstractCellLocator.

◆ SafeDownCast()

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

Standard methods to print and obtain type-related information.

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkCellTreeLocator::NewInstanceInternal ( ) const
protectedvirtual

Standard methods to print and obtain type-related information.

Reimplemented from vtkAbstractCellLocator.

◆ NewInstance()

vtkCellTreeLocator * vtkCellTreeLocator::NewInstance ( ) const

Standard methods to print and obtain type-related information.

◆ PrintSelf()

void vtkCellTreeLocator::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
overridevirtual

Standard methods to print and obtain type-related information.

Reimplemented from vtkAbstractCellLocator.

◆ New()

static vtkCellTreeLocator * vtkCellTreeLocator::New ( )
static

Constructor sets the maximum number of cells in a leaf to 8 and number of buckets to 6.

Buckets are used in building the cell tree as described in the paper.

◆ SetNumberOfBuckets()

virtual void vtkCellTreeLocator::SetNumberOfBuckets ( int  )
virtual

Set/Get the number of buckets.

Default is 6.

◆ GetNumberOfBuckets()

virtual int vtkCellTreeLocator::GetNumberOfBuckets ( )
virtual

Set/Get the number of buckets.

Default is 6.

◆ GetLargeIds()

bool vtkCellTreeLocator::GetLargeIds ( )
inline

Inform the user as to whether large ids are being used.

This flag only has meaning after the locator has been built. Large ids are used when the number of binned points, or the number of bins, is >= the maximum number of buckets (specified by the user). Note that LargeIds are only available on 64-bit architectures.

Definition at line 119 of file vtkCellTreeLocator.h.

◆ IntersectWithLine() [1/8]

int vtkCellTreeLocator::IntersectWithLine ( const double  a0[3],
const double  a1[3],
double  tol,
double &  t,
double  x[3],
double  pcoords[3],
int &  subId,
vtkIdType cellId,
vtkGenericCell cell 
)
overridevirtual

Return intersection point (if any) AND the cell which was intersected by the finite line.

The cell is returned as a cell id and as a generic cell.

Reimplemented from vtkAbstractCellLocator.

◆ IntersectWithLine() [2/8]

int vtkCellTreeLocator::IntersectWithLine ( const double  p1[3],
const double  p2[3],
double  tol,
vtkPoints points,
vtkIdList cellIds,
vtkGenericCell cell 
)
overridevirtual

Take the passed line segment and intersect it with the data set.

The return value of the function is 0 if no intersections were found. For each intersection with the bounds of a cell or with a cell (if a cell is provided), the points and cellIds have the relevant information added sorted by t. If points or cellIds are nullptr pointers, then no information is generated for that list.

For other IntersectWithLine signatures, see vtkAbstractCellLocator.

Reimplemented from vtkAbstractCellLocator.

◆ FindCellsWithinBounds()

void vtkCellTreeLocator::FindCellsWithinBounds ( double *  bbox,
vtkIdList cells 
)
overridevirtual

Return a list of unique cell ids inside of a given bounding box.

The user must provide the vtkIdList to populate.

Reimplemented from vtkAbstractCellLocator.

◆ FindCellsAlongLine()

void vtkCellTreeLocator::FindCellsAlongLine ( const double  p1[3],
const double  p2[3],
double  tolerance,
vtkIdList cellsIds 
)
inlineoverridevirtual

Take the passed line segment and intersect it with the data set.

For each intersection with the bounds of a cell, the cellIds have the relevant information added sort by t. If cellIds is nullptr pointer, then no information is generated for that list.

Reimplemented from vtkAbstractCellLocator to showcase that it's a supported function.

Reimplemented from vtkAbstractCellLocator.

Definition at line 158 of file vtkCellTreeLocator.h.

◆ FindCell() [1/4]

vtkIdType vtkCellTreeLocator::FindCell ( double  pos[3],
double   vtkNotUsedtol2,
vtkGenericCell cell,
int &  subId,
double  pcoords[3],
double *  weights 
)
override

Find the cell containing a given point.

returns -1 if no cell found the cell parameters are copied into the supplied variables, a cell must be provided to store the information.

◆ FreeSearchStructure()

void vtkCellTreeLocator::FreeSearchStructure ( )
overridevirtual

Satisfy vtkLocator abstract interface.

Implements vtkLocator.

◆ BuildLocator()

void vtkCellTreeLocator::BuildLocator ( )
overridevirtual

Satisfy vtkLocator abstract interface.

Implements vtkLocator.

◆ ForceBuildLocator()

void vtkCellTreeLocator::ForceBuildLocator ( )
overridevirtual

Satisfy vtkLocator abstract interface.

Reimplemented from vtkLocator.

◆ GenerateRepresentation()

void vtkCellTreeLocator::GenerateRepresentation ( int  level,
vtkPolyData pd 
)
overridevirtual

Satisfy vtkLocator abstract interface.

Implements vtkLocator.

◆ ShallowCopy()

void vtkCellTreeLocator::ShallowCopy ( vtkAbstractCellLocator locator)
overridevirtual

Shallow copy of a vtkCellTreeLocator.

Before you shallow copy, make sure to call SetDataSet()

Reimplemented from vtkAbstractCellLocator.

◆ BuildLocatorInternal()

void vtkCellTreeLocator::BuildLocatorInternal ( )
overrideprotectedvirtual

This function is not pure virtual to maintain backwards compatibility.

Reimplemented from vtkLocator.

◆ FindCell() [2/4]

virtual vtkIdType vtkAbstractCellLocator::FindCell ( double  x[3])
virtual

Returns the Id of the cell containing the point, returns -1 if no cell found.

This interface uses a tolerance of zero

THIS FUNCTION IS NOT THREAD SAFE.

Reimplemented from vtkAbstractCellLocator.

◆ FindCell() [3/4]

virtual vtkIdType vtkAbstractCellLocator::FindCell ( double  x[3],
double  tol2,
vtkGenericCell GenCell,
double  pcoords[3],
double *  weights 
)
virtual

Find the cell containing a given point.

returns -1 if no cell found the cell parameters are copied into the supplied variables, a cell must be provided to store the information.

THIS FUNCTION IS THREAD SAFE.

Reimplemented from vtkAbstractCellLocator.

◆ FindCell() [4/4]

virtual vtkIdType vtkAbstractCellLocator::FindCell ( double  x[3],
double  tol2,
vtkGenericCell GenCell,
int &  subId,
double  pcoords[3],
double *  weights 
)
virtual

Find the cell containing a given point.

returns -1 if no cell found the cell parameters are copied into the supplied variables, a cell must be provided to store the information.

THIS FUNCTION IS THREAD SAFE.

Reimplemented from vtkAbstractCellLocator.

◆ IntersectWithLine() [3/8]

virtual int vtkAbstractCellLocator::IntersectWithLine ( const double  p1[3],
const double  p2[3],
double  tol,
double &  t,
double  x[3],
double  pcoords[3],
int &  subId 
)
virtual

Return intersection point (if any) of finite line with cells contained in cell locator.

See vtkCell.h parameters documentation.

THIS FUNCTION IS NOT THREAD SAFE.

Reimplemented from vtkAbstractCellLocator.

◆ IntersectWithLine() [4/8]

virtual int vtkAbstractCellLocator::IntersectWithLine ( const double  p1[3],
const double  p2[3],
double  tol,
double &  t,
double  x[3],
double  pcoords[3],
int &  subId,
vtkIdType cellId 
)
virtual

Return intersection point (if any) AND the cell which was intersected by the finite line.

THIS FUNCTION IS NOT THREAD SAFE.

Reimplemented from vtkAbstractCellLocator.

◆ IntersectWithLine() [5/8]

virtual int vtkAbstractCellLocator::IntersectWithLine ( const double  p1[3],
const double  p2[3],
double  tol,
double &  t,
double  x[3],
double  pcoords[3],
int &  subId,
vtkIdType cellId,
vtkGenericCell cell 
)
virtual

Return intersection point (if any) AND the cell which was intersected by the finite line.

The cell is returned as a cell id and as a generic cell.

This function takes in a vtkGenericCell to avoid using the internal vtkGenericCell.

THIS FUNCTION IS THREAD SAFE.

Reimplemented from vtkAbstractCellLocator.

◆ IntersectWithLine() [6/8]

virtual int vtkAbstractCellLocator::IntersectWithLine ( const double  p1[3],
const double  p2[3],
vtkPoints points,
vtkIdList cellIds 
)
virtual

Take the passed line segment and intersect it with the data set.

The return value of the function is 0 if no intersections were found, -1 if point 'a0' lies inside the closed surface, or +1 if point 'a0' lies outside the closed surface. This method assumes that the data set is a vtkPolyData that describes a closed surface, and the intersection points that are returned in 'points' alternate between entrance points and exit points.

Either 'points' or 'cellIds' can be set to nullptr if you don't want to receive that information.

This method is only implemented in vtkOBBTree.

THIS FUNCTION IS THREAD SAFE.

Reimplemented from vtkAbstractCellLocator.

◆ IntersectWithLine() [7/8]

virtual int vtkAbstractCellLocator::IntersectWithLine ( const double  p1[3],
const double  p2[3],
double  tol,
vtkPoints points,
vtkIdList cellIds 
)
virtual

Take the passed line segment and intersect it with the data set.

The return value of the function is 0 if no intersections were found. For each intersection with a cell, the points and cellIds have the relevant information added sorted by t. If points or cellIds are nullptr pointers, then no information is generated for that list.

THIS FUNCTION IS NOT THREAD SAFE.

Reimplemented from vtkAbstractCellLocator.

◆ IntersectWithLine() [8/8]

virtual int vtkAbstractCellLocator::IntersectWithLine ( const double  p1[3],
const double  p2[3],
double  tol,
vtkPoints points,
vtkIdList cellIds,
vtkGenericCell cell 
)
virtual

Take the passed line segment and intersect it with the data set.

The return value of the function is 0 if no intersections were found. For each intersection with the bounds of a cell or with a cell (if a cell is provided), the points and cellIds have the relevant information added sorted by t. If points or cellIds are nullptr pointers, then no information is generated for that list.

This function takes in a vtkGenericCell to avoid using the internal vtkGenericCell.

THIS FUNCTION IS THREAD SAFE.

Reimplemented from vtkAbstractCellLocator.

Friends And Related Symbol Documentation

◆ detail::CellTree

template<typename >
friend struct detail::CellTree
friend

Definition at line 83 of file vtkCellTreeLocator.h.

◆ detail::CellTreeBuilder

template<typename >
friend struct detail::CellTreeBuilder
friend

Definition at line 85 of file vtkCellTreeLocator.h.

Member Data Documentation

◆ NumberOfBuckets

int vtkCellTreeLocator::NumberOfBuckets
protected

Definition at line 195 of file vtkCellTreeLocator.h.

◆ LargeIds

bool vtkCellTreeLocator::LargeIds = false
protected

Definition at line 196 of file vtkCellTreeLocator.h.

◆ Tree

detail::vtkCellTree* vtkCellTreeLocator::Tree
protected

Definition at line 198 of file vtkCellTreeLocator.h.


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