VTK
9.4.20241202
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quickly locate points in 3-space More...
#include <vtkStaticPointLocator.h>
Public Types | |
enum | TraversalOrderType { POINT_ORDER = 0 , BIN_ORDER = 1 } |
Point merging is inherently an order-dependent process. More... | |
Public Types inherited from vtkAbstractPointLocator | |
typedef vtkLocator | Superclass |
Standard type and print methods. | |
Public Types inherited from vtkLocator | |
typedef vtkObject | Superclass |
Standard type and print methods. | |
Public Member Functions | |
vtkIdType | FindClosestPoint (const double x[3]) override |
Given a position x, return the id of the point closest to it, or (-1) if no point found. | |
void | FindClosestNPoints (int N, const double x[3], vtkIdList *result) override |
Find the closest N points to a position. | |
void | FindPointsWithinRadius (double R, const double x[3], vtkIdList *result) override |
Find all points within a specified radius R of position x. | |
int | IntersectWithLine (double a0[3], double a1[3], double tol, double &t, double lineX[3], double ptX[3], vtkIdType &ptId) |
Intersect the points contained in the locator with the line defined by (a0,a1). | |
void | MergePoints (double tol, vtkIdType *mergeMap) |
Merge points in the locator given a tolerance. | |
void | MergePointsWithData (vtkDataArray *data, vtkIdType *mergeMap) |
Merge points and associated data in the locator. | |
void | GenerateRepresentation (int level, vtkPolyData *pd) override |
Populate a polydata with the faces of the bins that potentially contain cells. | |
vtkIdType | GetNumberOfPointsInBucket (vtkIdType bNum) |
Given a bucket number bNum between 0 <= bNum < this->GetNumberOfBuckets(), return the number of points found in the bucket. | |
void | GetBucketIds (vtkIdType bNum, vtkIdList *bList) |
Given a bucket number bNum between 0 <= bNum < this->GetNumberOfBuckets(), return a list of point ids contained within the bucket. | |
bool | GetLargeIds () |
Inform the user as to whether large ids are being used. | |
virtual void | FindClosestNPoints (int N, const double x[3], vtkIdList *result)=0 |
Find the closest N points to a position. | |
void | FindClosestNPoints (int N, double x, double y, double z, vtkIdList *result) |
virtual vtkIdType | FindClosestPoint (const double x[3])=0 |
Given a position x, return the id of the point closest to it. | |
vtkIdType | FindClosestPoint (double x, double y, double z) |
virtual void | FindPointsWithinRadius (double R, const double x[3], vtkIdList *result)=0 |
Find all points within a specified radius R of position x. | |
void | FindPointsWithinRadius (double R, double x, double y, double z, vtkIdList *result) |
virtual double * | GetBounds () |
Provide an accessor to the bounds. | |
virtual void | GetBounds (double *) |
Provide an accessor to the bounds. | |
virtual void | SetNumberOfPointsPerBucket (int) |
Specify the average number of points in each bucket. | |
virtual int | GetNumberOfPointsPerBucket () |
Specify the average number of points in each bucket. | |
virtual void | SetDivisions (int, int, int) |
Set the number of divisions in x-y-z directions. | |
virtual void | SetDivisions (int[3]) |
Set the number of divisions in x-y-z directions. | |
virtual int * | GetDivisions () |
Set the number of divisions in x-y-z directions. | |
virtual void | GetDivisions (int data[3]) |
Set the number of divisions in x-y-z directions. | |
vtkIdType | FindClosestPointWithinRadius (double radius, const double x[3], double &dist2) override |
Given a position x and a radius r, return the id of the point closest to the point in that radius, or (-1) if nothing found. | |
virtual vtkIdType | FindClosestPointWithinRadius (double radius, const double x[3], double inputDataLength, double &dist2) |
Given a position x and a radius r, return the id of the point closest to the point in that radius, or (-1) if nothing found. | |
void | Initialize () override |
See vtkLocator and vtkAbstractPointLocator interface documentation. | |
void | FreeSearchStructure () override |
See vtkLocator and vtkAbstractPointLocator interface documentation. | |
void | BuildLocator () override |
See vtkLocator and vtkAbstractPointLocator interface documentation. | |
void | ForceBuildLocator () override |
See vtkLocator and vtkAbstractPointLocator interface documentation. | |
void | BuildLocator (const double *inBounds) |
See vtkLocator and vtkAbstractPointLocator interface documentation. | |
virtual void | SetMaxNumberOfBuckets (vtkIdType) |
Set the maximum number of buckets in the locator. | |
virtual vtkIdType | GetMaxNumberOfBuckets () |
Set the maximum number of buckets in the locator. | |
virtual double * | GetSpacing () |
Provide an accessor to the bucket spacing. | |
virtual void | GetSpacing (double spacing[3]) |
Provide an accessor to the bucket spacing. | |
virtual void | SetTraversalOrder (int) |
Specify the manner in which points are processed when a non-zero merge tolerance is specified. | |
virtual int | GetTraversalOrder () |
Specify the manner in which points are processed when a non-zero merge tolerance is specified. | |
void | SetTraversalOrderToPointOrder () |
Specify the manner in which points are processed when a non-zero merge tolerance is specified. | |
void | SetTraversalOrderToBinOrder () |
Specify the manner in which points are processed when a non-zero merge tolerance is specified. | |
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. | |
vtkIdType | FindClosestPoint (double x, double y, double z) |
Given a position x, return the id of the point closest to it. | |
void | FindClosestNPoints (int N, double x, double y, double z, vtkIdList *result) |
Find the closest N points to a position. | |
void | FindPointsWithinRadius (double R, double x, double y, double z, vtkIdList *result) |
Find all points within a specified radius R of position x. | |
virtual vtkIdType | GetNumberOfBuckets () |
Return the total number of buckets in the locator. | |
vtkAbstractPointLocator * | NewInstance () const |
Standard type and print methods. | |
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 vtkDataSet * | GetDataSet () |
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. | |
vtkLocator * | NewInstance () const |
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. | |
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. | |
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 vtkStaticPointLocator * | New () |
Construct with automatic computation of divisions, averaging 5 points per bucket. | |
Static Public Member Functions inherited from vtkAbstractPointLocator | |
static vtkTypeBool | IsTypeOf (const char *type) |
Standard type and print methods. | |
static vtkAbstractPointLocator * | SafeDownCast (vtkObjectBase *o) |
Standard type and print methods. | |
Static Public Member Functions inherited from vtkLocator | |
static vtkTypeBool | IsTypeOf (const char *type) |
Standard type and print methods. | |
static vtkLocator * | SafeDownCast (vtkObjectBase *o) |
Standard type and print methods. | |
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 (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 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 | |
vtkStaticPointLocator () | |
~vtkStaticPointLocator () override | |
void | BuildLocatorInternal () override |
This function is not pure virtual to maintain backwards compatibility. | |
Protected Member Functions inherited from vtkAbstractPointLocator | |
vtkAbstractPointLocator () | |
~vtkAbstractPointLocator () override | |
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 | NumberOfPointsPerBucket |
int | Divisions [3] |
double | H [3] |
vtkBucketList * | Buckets |
vtkIdType | MaxNumberOfBuckets |
bool | LargeIds |
int | TraversalOrder |
Protected Attributes inherited from vtkAbstractPointLocator | |
double | Bounds [6] |
vtkIdType | NumberOfBuckets |
Protected Attributes inherited from vtkLocator | |
vtkDataSet * | DataSet |
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 |
typedef vtkAbstractPointLocator | Superclass |
Standard type and print methods. | |
static vtkTypeBool | IsTypeOf (const char *type) |
Standard type and print methods. | |
static vtkStaticPointLocator * | SafeDownCast (vtkObjectBase *o) |
Standard type and print methods. | |
virtual vtkTypeBool | IsA (const char *type) |
Standard type and print methods. | |
vtkStaticPointLocator * | NewInstance () const |
Standard type and print methods. | |
void | PrintSelf (ostream &os, vtkIndent indent) override |
Standard type and print methods. | |
virtual vtkObjectBase * | NewInstanceInternal () const |
Standard type and print methods. | |
Additional Inherited Members | |
Static Protected Member Functions inherited from vtkObjectBase | |
static vtkMallocingFunction | GetCurrentMallocFunction () |
static vtkReallocingFunction | GetCurrentReallocFunction () |
static vtkFreeingFunction | GetCurrentFreeFunction () |
static vtkFreeingFunction | GetAlternateFreeFunction () |
quickly locate points in 3-space
vtkStaticPointLocator is a spatial search object to quickly locate points in 3D. vtkStaticPointLocator works by dividing a specified region of space into a regular array of cuboid buckets, and then keeping a list of points that lie in each bucket. Typical operation involves giving a position in 3D and finding the closest point; or finding the N closest points.
vtkStaticPointLocator is an accelerated version of vtkPointLocator. It is threaded (via vtkSMPTools), and supports one-time static construction (i.e., incremental point insertion is not supported). If you need to incrementally insert points, use the vtkPointLocator or its kin to do so.
Definition at line 88 of file vtkStaticPointLocator.h.
Standard type and print methods.
Definition at line 101 of file vtkStaticPointLocator.h.
Point merging is inherently an order-dependent process.
Because naive threaded execution can non-deterministically change the ordering of merged points, threaded point merging for tolerances != 0.0 requires some level of serialization of the merging process to produce deterministic results. POINT_ORDER is completely serialized: two points with ids p0,p1 are merged if they are within tolerance of one another, with p1->p0 (p1 merged to p0) if p0<p1. IN BIN_ORDER, a threaded checkerboarding approach is used so that p1->p0 when p0<p1 in the local bin neighborhood and p1 not yet merged.
Enumerator | |
---|---|
POINT_ORDER | |
BIN_ORDER |
Definition at line 295 of file vtkStaticPointLocator.h.
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protected |
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Construct with automatic computation of divisions, averaging 5 points per bucket.
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static |
Standard type and print methods.
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virtual |
Standard type and print methods.
Reimplemented from vtkAbstractPointLocator.
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static |
Standard type and print methods.
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protectedvirtual |
Standard type and print methods.
Reimplemented from vtkAbstractPointLocator.
vtkStaticPointLocator * vtkStaticPointLocator::NewInstance | ( | ) | const |
Standard type and print methods.
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overridevirtual |
Standard type and print methods.
Reimplemented from vtkAbstractPointLocator.
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Specify the average number of points in each bucket.
This data member is used in conjunction with the Automatic data member (if enabled) to determine the number of locator x-y-z divisions.
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Specify the average number of points in each bucket.
This data member is used in conjunction with the Automatic data member (if enabled) to determine the number of locator x-y-z divisions.
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virtual |
Set the number of divisions in x-y-z directions.
If the Automatic data member is enabled, the Divisions are set according to the NumberOfPointsPerBucket and MaxNumberOfBuckets data members. The number of divisions must be >= 1 in each direction.
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Set the number of divisions in x-y-z directions.
If the Automatic data member is enabled, the Divisions are set according to the NumberOfPointsPerBucket and MaxNumberOfBuckets data members. The number of divisions must be >= 1 in each direction.
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virtual |
Set the number of divisions in x-y-z directions.
If the Automatic data member is enabled, the Divisions are set according to the NumberOfPointsPerBucket and MaxNumberOfBuckets data members. The number of divisions must be >= 1 in each direction.
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virtual |
Set the number of divisions in x-y-z directions.
If the Automatic data member is enabled, the Divisions are set according to the NumberOfPointsPerBucket and MaxNumberOfBuckets data members. The number of divisions must be >= 1 in each direction.
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Given a position x, return the id of the point closest to it, or (-1) if no point found.
An alternative method (defined in the superclass) requires separate x-y-z values. These methods are thread safe if BuildLocator() is directly or indirectly called from a single thread first.
Implements vtkAbstractPointLocator.
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Given a position x and a radius r, return the id of the point closest to the point in that radius, or (-1) if nothing found.
These methods are thread safe if BuildLocator() is directly or indirectly called from a single thread first. dist2 returns the squared distance to the point. Note that if multiple points are located the same distance away, the actual point returned is a function in which order the points are processed (i.e., indeterminate).
Implements vtkAbstractPointLocator.
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virtual |
Given a position x and a radius r, return the id of the point closest to the point in that radius, or (-1) if nothing found.
These methods are thread safe if BuildLocator() is directly or indirectly called from a single thread first. dist2 returns the squared distance to the point. Note that if multiple points are located the same distance away, the actual point returned is a function in which order the points are processed (i.e., indeterminate).
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Find the closest N points to a position.
This returns the closest N points to a position. A faster method could be created that returned N close points to a position, but necessarily the exact N closest. The returned points are sorted from closest to farthest. These methods are thread safe if BuildLocator() is directly or indirectly called from a single thread first.
Implements vtkAbstractPointLocator.
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overridevirtual |
Find all points within a specified radius R of position x.
The result is not sorted in any specific manner. These methods are thread safe if BuildLocator() is directly or indirectly called from a single thread first.
Implements vtkAbstractPointLocator.
int vtkStaticPointLocator::IntersectWithLine | ( | double | a0[3], |
double | a1[3], | ||
double | tol, | ||
double & | t, | ||
double | lineX[3], | ||
double | ptX[3], | ||
vtkIdType & | ptId | ||
) |
Intersect the points contained in the locator with the line defined by (a0,a1).
Return the point within the tolerance tol that is closest to a0 (tol measured in the world coordinate system). If an intersection occurs (i.e., the method returns nonzero), then the parametric location along the line t, the closest position along the line lineX, and the coordinates of the picked ptId is returned in ptX. (This method is thread safe after the locator is built.)
void vtkStaticPointLocator::MergePoints | ( | double | tol, |
vtkIdType * | mergeMap | ||
) |
Merge points in the locator given a tolerance.
Return a merge map which maps all points to the points to which they were merged. Note the number of points in the merge map is the number of points the locator was built with. The user is expected to pass in an allocated mergeMap. Note that when tol!=0, the traversal order of threading can be specified using the SetTraversalOrder() method. The traversal order is needed to generate deterministic output (i.e., output independent of thread execution order).
void vtkStaticPointLocator::MergePointsWithData | ( | vtkDataArray * | data, |
vtkIdType * | mergeMap | ||
) |
Merge points and associated data in the locator.
Return a merge map which maps all points to the points to which they were merged. Note the number of points in the merge map is the number of points the locator was built with. Merging occurs when both the points and the associated point data (represented by the data array) are equal. The user is expected to pass in an allocated mergeMap, and the size of the data array should be number of points in the locator. The data array may have an arbitrary number of components.
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overridevirtual |
See vtkLocator and vtkAbstractPointLocator interface documentation.
These methods are not thread safe.
Reimplemented from vtkLocator.
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overridevirtual |
See vtkLocator and vtkAbstractPointLocator interface documentation.
These methods are not thread safe.
Implements vtkLocator.
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overridevirtual |
See vtkLocator and vtkAbstractPointLocator interface documentation.
These methods are not thread safe.
Implements vtkLocator.
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overridevirtual |
See vtkLocator and vtkAbstractPointLocator interface documentation.
These methods are not thread safe.
Reimplemented from vtkLocator.
void vtkStaticPointLocator::BuildLocator | ( | const double * | inBounds | ) |
See vtkLocator and vtkAbstractPointLocator interface documentation.
These methods are not thread safe.
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Populate a polydata with the faces of the bins that potentially contain cells.
Note that the level parameter has no effect on this method as there is no hierarchy built (i.e., uniform binning). Typically this is used for debugging.
Implements vtkLocator.
Given a bucket number bNum between 0 <= bNum < this->GetNumberOfBuckets(), return the number of points found in the bucket.
Given a bucket number bNum between 0 <= bNum < this->GetNumberOfBuckets(), return a list of point ids contained within the bucket.
The user must provide an instance of vtkIdList to contain the result.
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Set the maximum number of buckets in the locator.
By default the value is set to VTK_INT_MAX. Note that there are significant performance implications at work here. If the number of buckets is set very large (meaning > VTK_INT_MAX) then internal sorting may be performed using 64-bit integers (which is much slower than using a 32-bit int). Of course, memory requirements may dramatically increase as well. It is recommended that the default value be used; but for extremely large data it may be desired to create a locator with an exceptionally large number of buckets. Note also that during initialization of the locator if the MaxNumberOfBuckets threshold is exceeded, the Divisions are scaled down in such a way as not to exceed the MaxNumberOfBuckets proportionally to the size of the bounding box in the x-y-z directions.
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virtual |
Set the maximum number of buckets in the locator.
By default the value is set to VTK_INT_MAX. Note that there are significant performance implications at work here. If the number of buckets is set very large (meaning > VTK_INT_MAX) then internal sorting may be performed using 64-bit integers (which is much slower than using a 32-bit int). Of course, memory requirements may dramatically increase as well. It is recommended that the default value be used; but for extremely large data it may be desired to create a locator with an exceptionally large number of buckets. Note also that during initialization of the locator if the MaxNumberOfBuckets threshold is exceeded, the Divisions are scaled down in such a way as not to exceed the MaxNumberOfBuckets proportionally to the size of the bounding box in the x-y-z directions.
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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 268 of file vtkStaticPointLocator.h.
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inlinevirtual |
Provide an accessor to the bucket spacing.
Valid after the locator is built.
Definition at line 275 of file vtkStaticPointLocator.h.
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inlinevirtual |
Provide an accessor to the bucket spacing.
Valid after the locator is built.
Definition at line 276 of file vtkStaticPointLocator.h.
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virtual |
Specify the manner in which points are processed when a non-zero merge tolerance is specified.
By default, BIN_ORDER is used (i.e., threaded using bin checkerboard traversal) versus POINT_ORDER, which is a serial traversal.
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virtual |
Specify the manner in which points are processed when a non-zero merge tolerance is specified.
By default, BIN_ORDER is used (i.e., threaded using bin checkerboard traversal) versus POINT_ORDER, which is a serial traversal.
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inline |
Specify the manner in which points are processed when a non-zero merge tolerance is specified.
By default, BIN_ORDER is used (i.e., threaded using bin checkerboard traversal) versus POINT_ORDER, which is a serial traversal.
Definition at line 310 of file vtkStaticPointLocator.h.
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inline |
Specify the manner in which points are processed when a non-zero merge tolerance is specified.
By default, BIN_ORDER is used (i.e., threaded using bin checkerboard traversal) versus POINT_ORDER, which is a serial traversal.
Definition at line 314 of file vtkStaticPointLocator.h.
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overrideprotectedvirtual |
This function is not pure virtual to maintain backwards compatibility.
Reimplemented from vtkLocator.
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virtual |
Find the closest N points to a position.
This returns the closest N points to a position. A faster method could be created that returned N close points to a position, but necessarily the exact N closest. The returned points are sorted from closest to farthest. These methods are thread safe if BuildLocator() is directly or indirectly called from a single thread first.
Implements vtkAbstractPointLocator.
void vtkAbstractPointLocator::FindClosestNPoints | ( | int | N, |
double | x, | ||
double | y, | ||
double | z, | ||
vtkIdList * | result | ||
) |
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virtual |
Given a position x, return the id of the point closest to it.
Alternative method requires separate x-y-z values. These methods are thread safe if BuildLocator() is directly or indirectly called from a single thread first.
Implements vtkAbstractPointLocator.
vtkIdType vtkAbstractPointLocator::FindClosestPoint | ( | double | x, |
double | y, | ||
double | z | ||
) |
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virtual |
Find all points within a specified radius R of position x.
The result is not sorted in any specific manner. These methods are thread safe if BuildLocator() is directly or indirectly called from a single thread first.
Implements vtkAbstractPointLocator.
void vtkAbstractPointLocator::FindPointsWithinRadius | ( | double | R, |
double | x, | ||
double | y, | ||
double | z, | ||
vtkIdList * | result | ||
) |
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inlinevirtual |
Provide an accessor to the bounds.
Valid after the locator is built.
Reimplemented from vtkAbstractPointLocator.
Definition at line 88 of file vtkAbstractPointLocator.h.
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virtual |
Provide an accessor to the bounds.
Valid after the locator is built.
Reimplemented from vtkAbstractPointLocator.
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protected |
Definition at line 323 of file vtkStaticPointLocator.h.
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protected |
Definition at line 324 of file vtkStaticPointLocator.h.
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protected |
Definition at line 325 of file vtkStaticPointLocator.h.
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protected |
Definition at line 326 of file vtkStaticPointLocator.h.
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protected |
Definition at line 327 of file vtkStaticPointLocator.h.
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protected |
Definition at line 328 of file vtkStaticPointLocator.h.
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protected |
Definition at line 329 of file vtkStaticPointLocator.h.