VTK
9.1.0
|
an abstract base class for locators which find cells More...
#include <vtkAbstractCellLocator.h>
Public Types | |
typedef vtkLocator | Superclass |
Public Types inherited from vtkLocator | |
typedef vtkObject | Superclass |
Standard type and print methods. | |
Public Member Functions | |
virtual vtkTypeBool | IsA (const char *type) |
Standard type and print methods. | |
vtkAbstractCellLocator * | NewInstance () const |
void | PrintSelf (ostream &os, vtkIndent indent) override |
Methods invoked by print to print information about the object including superclasses. | |
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 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) |
Given a finite line defined by the two points (p1,p2), return the list of unique cell ids in the buckets containing the line. | |
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 bool | InsideCellBounds (double x[3], vtkIdType cell_ID) |
Quickly test if a point is inside the bounds of a particular cell. | |
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. | |
virtual void | SetLazyEvaluation (vtkTypeBool) |
Most Locators build their search structures during BuildLocator but some may delay construction until it is actually needed. | |
virtual vtkTypeBool | GetLazyEvaluation () |
Most Locators build their search structures during BuildLocator but some may delay construction until it is actually needed. | |
virtual void | LazyEvaluationOn () |
Most Locators build their search structures during BuildLocator but some may delay construction until it is actually needed. | |
virtual void | LazyEvaluationOff () |
Most Locators build their search structures during BuildLocator but some may delay construction until it is actually needed. | |
virtual void | SetUseExistingSearchStructure (vtkTypeBool) |
Some locators support querying a new dataset without rebuilding the search structure (typically this may occur when a dataset changes due to a time update, but is actually the same topology) Turning on this flag enables some locators to skip the rebuilding phase. | |
virtual vtkTypeBool | GetUseExistingSearchStructure () |
Some locators support querying a new dataset without rebuilding the search structure (typically this may occur when a dataset changes due to a time update, but is actually the same topology) Turning on this flag enables some locators to skip the rebuilding phase. | |
virtual void | UseExistingSearchStructureOn () |
Some locators support querying a new dataset without rebuilding the search structure (typically this may occur when a dataset changes due to a time update, but is actually the same topology) Turning on this flag enables some locators to skip the rebuilding phase. | |
virtual void | UseExistingSearchStructureOff () |
Some locators support querying a new dataset without rebuilding the search structure (typically this may occur when a dataset changes due to a time update, but is actually the same topology) Turning on this flag enables some locators to skip the rebuilding phase. | |
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 | 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 vtkMTimeType | GetBuildTime () |
Return the time of the last data structure build. | |
void | Register (vtkObjectBase *o) override |
Handle the PointSet <-> Locator loop. | |
void | UnRegister (vtkObjectBase *o) override |
Handle the PointSet <-> Locator loop. | |
vtkLocator * | NewInstance () 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) |
int | InvokeEvent (unsigned long event) |
int | InvokeEvent (const char *event) |
unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
vtkCommand * | GetCommand (unsigned long tag) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
void | RemoveObserver (vtkCommand *) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
void | RemoveObservers (unsigned long event, vtkCommand *) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
void | RemoveObservers (const char *event, vtkCommand *) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
vtkTypeBool | HasObserver (const char *event, vtkCommand *) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. | |
template<class U , class T > | |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f) |
Overloads to AddObserver that allow developers to add class member functions as callbacks for events. | |
template<class U , class T > | |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
Overloads to AddObserver that allow developers to add class member functions as callbacks for events. | |
template<class U , class T > | |
unsigned long | AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
Allow user to set the AbortFlagOn() with the return value of the callback method. | |
int | InvokeEvent (unsigned long event, void *callData) |
This method invokes an event and return whether the event was aborted or not. | |
int | InvokeEvent (const char *event, void *callData) |
This method invokes an event and return whether the event was aborted or not. | |
Public Member Functions inherited from vtkObjectBase | |
const char * | GetClassName () const |
Return the class name as a string. | |
virtual vtkTypeBool | IsA (const char *name) |
Return 1 if this class is the same type of (or a subclass of) the named class. | |
virtual vtkIdType | GetNumberOfGenerationsFromBase (const char *name) |
Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class). | |
virtual void | Delete () |
Delete a VTK object. | |
virtual void | FastDelete () |
Delete a reference to this object. | |
void | InitializeObjectBase () |
void | Print (ostream &os) |
Print an object to an ostream. | |
virtual void | Register (vtkObjectBase *o) |
Increase the reference count (mark as used by another object). | |
virtual void | UnRegister (vtkObjectBase *o) |
Decrease the reference count (release by another object). | |
int | GetReferenceCount () |
Return the current reference count of this object. | |
void | SetReferenceCount (int) |
Sets the reference count. | |
bool | GetIsInMemkind () const |
A local state flag that remembers whether this object lives in the normal or extended memory space. | |
virtual void | PrintHeader (ostream &os, vtkIndent indent) |
Methods invoked by print to print information about the object including superclasses. | |
virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
Methods invoked by print to print information about the object including superclasses. | |
Static Public Member Functions | |
static vtkTypeBool | IsTypeOf (const char *type) |
static vtkAbstractCellLocator * | SafeDownCast (vtkObjectBase *o) |
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 (int val) |
This is a global flag that controls whether any debug, warning or error messages are displayed. | |
static void | GlobalWarningDisplayOn () |
This is a global flag that controls whether any debug, warning or error messages are displayed. | |
static void | GlobalWarningDisplayOff () |
This is a global flag that controls whether any debug, warning or error messages are displayed. | |
static int | GetGlobalWarningDisplay () |
This is a global flag that controls whether any debug, warning or error messages are displayed. | |
Static Public Member Functions inherited from vtkObjectBase | |
static vtkTypeBool | IsTypeOf (const char *name) |
Return 1 if this class type is the same type of (or a subclass of) the named class. | |
static vtkIdType | GetNumberOfGenerationsFromBaseType (const char *name) |
Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class). | |
static vtkObjectBase * | New () |
Create an object with Debug turned off, modified time initialized to zero, and reference counting on. | |
static void | SetMemkindDirectory (const char *directoryname) |
The name of a directory, ideally mounted -o dax, to memory map an extended memory space within. | |
static bool | GetUsingMemkind () |
A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space. | |
Protected Member Functions | |
virtual vtkObjectBase * | NewInstanceInternal () const |
Standard type and print methods. | |
vtkAbstractCellLocator () | |
~vtkAbstractCellLocator () override | |
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 | |
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 *) |
vtkObjectBase (const vtkObjectBase &) | |
void | operator= (const vtkObjectBase &) |
Protected Attributes | |
int | NumberOfCellsPerNode |
vtkTypeBool | RetainCellLists |
vtkTypeBool | CacheCellBounds |
vtkTypeBool | LazyEvaluation |
vtkTypeBool | UseExistingSearchStructure |
vtkGenericCell * | GenericCell |
double(* | CellBounds )[6] |
Protected Attributes inherited from vtkLocator | |
vtkDataSet * | DataSet |
vtkTypeBool | Automatic |
double | Tolerance |
int | MaxLevel |
int | Level |
vtkTimeStamp | BuildTime |
Protected Attributes inherited from vtkObject | |
bool | Debug |
vtkTimeStamp | MTime |
vtkSubjectHelper * | SubjectHelper |
Protected Attributes inherited from vtkObjectBase | |
std::atomic< int32_t > | ReferenceCount |
vtkWeakPointerBase ** | WeakPointers |
Additional Inherited Members | |
Static Protected Member Functions inherited from vtkObjectBase | |
static vtkMallocingFunction | GetCurrentMallocFunction () |
static vtkReallocingFunction | GetCurrentReallocFunction () |
static vtkFreeingFunction | GetCurrentFreeFunction () |
static vtkFreeingFunction | GetAlternateFreeFunction () |
an abstract base class for locators which find cells
vtkAbstractCellLocator is a spatial search object to quickly locate cells in 3D. vtkAbstractCellLocator supplies a basic interface which concrete subclasses should implement.
* using vtkAbstractCellLocator::IntersectWithLine; * using vtkAbstractCellLocator::FindClosestPoint; * using vtkAbstractCellLocator::FindClosestPointWithinRadius; *
Definition at line 48 of file vtkAbstractCellLocator.h.
Definition at line 51 of file vtkAbstractCellLocator.h.
|
protected |
|
overrideprotected |
|
static |
|
virtual |
Standard type and print methods.
Reimplemented from vtkLocator.
Reimplemented in vtkCellLocator, vtkStaticCellLocator, vtkModifiedBSPTree, vtkCellTreeLocator, and vtkOBBTree.
|
static |
|
protectedvirtual |
Standard type and print methods.
Reimplemented from vtkLocator.
Reimplemented in vtkCellLocator, vtkStaticCellLocator, vtkModifiedBSPTree, vtkCellTreeLocator, and vtkOBBTree.
vtkAbstractCellLocator * vtkAbstractCellLocator::NewInstance | ( | ) | const |
|
overridevirtual |
Methods invoked by print to print information about the object including superclasses.
Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.
Reimplemented from vtkObject.
Reimplemented in vtkCellLocator, vtkStaticCellLocator, vtkModifiedBSPTree, vtkCellTreeLocator, and vtkOBBTree.
|
virtual |
Specify the preferred/maximum number of cells in each node/bucket.
Default 32. Locators generally operate by subdividing space into smaller regions until the number of cells in each region (or node) reaches the desired level.
|
virtual |
Specify the preferred/maximum number of cells in each node/bucket.
Default 32. Locators generally operate by subdividing space into smaller regions until the number of cells in each region (or node) reaches the desired level.
|
virtual |
Boolean controls whether the bounds of each cell are computed only once and then saved.
Should be 10 to 20% faster if repeatedly calling any of the Intersect/Find routines and the extra memory won't cause disk caching (24 extra bytes per cell are required to save the bounds).
|
virtual |
Boolean controls whether the bounds of each cell are computed only once and then saved.
Should be 10 to 20% faster if repeatedly calling any of the Intersect/Find routines and the extra memory won't cause disk caching (24 extra bytes per cell are required to save the bounds).
|
virtual |
Boolean controls whether the bounds of each cell are computed only once and then saved.
Should be 10 to 20% faster if repeatedly calling any of the Intersect/Find routines and the extra memory won't cause disk caching (24 extra bytes per cell are required to save the bounds).
|
virtual |
Boolean controls whether the bounds of each cell are computed only once and then saved.
Should be 10 to 20% faster if repeatedly calling any of the Intersect/Find routines and the extra memory won't cause disk caching (24 extra bytes per cell are required to save the bounds).
|
virtual |
Boolean controls whether to maintain list of cells in each node.
not applicable to all implementations, but if the locator is being used as a geometry simplification technique, there is no need to keep them.
|
virtual |
Boolean controls whether to maintain list of cells in each node.
not applicable to all implementations, but if the locator is being used as a geometry simplification technique, there is no need to keep them.
|
virtual |
Boolean controls whether to maintain list of cells in each node.
not applicable to all implementations, but if the locator is being used as a geometry simplification technique, there is no need to keep them.
|
virtual |
Boolean controls whether to maintain list of cells in each node.
not applicable to all implementations, but if the locator is being used as a geometry simplification technique, there is no need to keep them.
|
virtual |
Most Locators build their search structures during BuildLocator but some may delay construction until it is actually needed.
If LazyEvaluation is supported, this turns on/off the feature. if not supported, it is ignored.
|
virtual |
Most Locators build their search structures during BuildLocator but some may delay construction until it is actually needed.
If LazyEvaluation is supported, this turns on/off the feature. if not supported, it is ignored.
|
virtual |
Most Locators build their search structures during BuildLocator but some may delay construction until it is actually needed.
If LazyEvaluation is supported, this turns on/off the feature. if not supported, it is ignored.
|
virtual |
Most Locators build their search structures during BuildLocator but some may delay construction until it is actually needed.
If LazyEvaluation is supported, this turns on/off the feature. if not supported, it is ignored.
|
virtual |
Some locators support querying a new dataset without rebuilding the search structure (typically this may occur when a dataset changes due to a time update, but is actually the same topology) Turning on this flag enables some locators to skip the rebuilding phase.
|
virtual |
Some locators support querying a new dataset without rebuilding the search structure (typically this may occur when a dataset changes due to a time update, but is actually the same topology) Turning on this flag enables some locators to skip the rebuilding phase.
|
virtual |
Some locators support querying a new dataset without rebuilding the search structure (typically this may occur when a dataset changes due to a time update, but is actually the same topology) Turning on this flag enables some locators to skip the rebuilding phase.
|
virtual |
Some locators support querying a new dataset without rebuilding the search structure (typically this may occur when a dataset changes due to a time update, but is actually the same topology) Turning on this flag enables some locators to skip the rebuilding phase.
|
virtual |
Return intersection point (if any) of finite line with cells contained in cell locator.
See vtkCell.h parameters documentation.
Reimplemented in vtkCellLocator, vtkModifiedBSPTree, vtkOBBTree, vtkStaticCellLocator, and vtkCellTreeLocator.
|
virtual |
Return intersection point (if any) AND the cell which was intersected by the finite line.
Reimplemented in vtkCellLocator, vtkModifiedBSPTree, vtkOBBTree, vtkStaticCellLocator, vtkModifiedBSPTree, and vtkCellTreeLocator.
|
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.
Reimplemented in vtkCellLocator, vtkStaticCellLocator, vtkCellTreeLocator, vtkOBBTree, vtkCellLocator, vtkModifiedBSPTree, vtkOBBTree, and vtkModifiedBSPTree.
|
virtual |
Take the passed line segment and intersect it with the data set.
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. 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. Either 'points' or 'cellIds' can be set to nullptr if you don't want to receive that information. This method is currently only implemented in vtkOBBTree.
Reimplemented in vtkOBBTree, vtkCellLocator, vtkModifiedBSPTree, vtkOBBTree, vtkStaticCellLocator, and vtkCellTreeLocator.
|
virtual |
Return the closest point and the cell which is closest to the point x.
The closest point is somewhere on a cell, it need not be one of the vertices of the cell.
Reimplemented in vtkCellLocator, and vtkStaticCellLocator.
|
virtual |
Return the closest point and the cell which is closest to the point x.
The closest point is somewhere on a cell, it need not be one of the vertices of the cell. This version takes in a vtkGenericCell to avoid allocating and deallocating the cell. This is much faster than the version which does not take a *cell, especially when this function is called many times in a row such as by a for loop, where the allocation and deallocation can be done only once outside the for loop. If a cell is found, "cell" contains the points and ptIds for the cell "cellId" upon exit.
Reimplemented in vtkCellLocator, vtkStaticCellLocator, vtkCellLocator, and vtkStaticCellLocator.
|
virtual |
Return the closest point within a specified radius and the cell which is closest to the point x.
The closest point is somewhere on a cell, it need not be one of the vertices of the cell. This method returns 1 if a point is found within the specified radius. If there are no cells within the specified radius, the method returns 0 and the values of closestPoint, cellId, subId, and dist2 are undefined.
Reimplemented in vtkCellLocator, and vtkStaticCellLocator.
|
virtual |
Return the closest point within a specified radius and the cell which is closest to the point x.
The closest point is somewhere on a cell, it need not be one of the vertices of the cell. This method returns 1 if a point is found within the specified radius. If there are no cells within the specified radius, the method returns 0 and the values of closestPoint, cellId, subId, and dist2 are undefined. This version takes in a vtkGenericCell to avoid allocating and deallocating the cell. This is much faster than the version which does not take a *cell, especially when this function is called many times in a row such as by a for loop, where the allocation and deallocation can be done only once outside the for loop. If a closest point is found, "cell" contains the points and ptIds for the cell "cellId" upon exit.
Reimplemented in vtkCellLocator, and vtkStaticCellLocator.
|
virtual |
Return the closest point within a specified radius and the cell which is closest to the point x.
The closest point is somewhere on a cell, it need not be one of the vertices of the cell. This method returns 1 if a point is found within the specified radius. If there are no cells within the specified radius, the method returns 0 and the values of closestPoint, cellId, subId, and dist2 are undefined. This version takes in a vtkGenericCell to avoid allocating and deallocating the cell. This is much faster than the version which does not take a *cell, especially when this function is called many times in a row such as by a for loop, where the allocation and dealloction can be done only once outside the for loop. If a closest point is found, "cell" contains the points and ptIds for the cell "cellId" upon exit. If a closest point is found, inside returns the return value of the EvaluatePosition call to the closest cell; inside(=1) or outside(=0).
Reimplemented in vtkCellLocator, vtkStaticCellLocator, vtkCellLocator, and vtkStaticCellLocator.
|
virtual |
Return a list of unique cell ids inside of a given bounding box.
The user must provide the vtkIdList to populate. This method returns data only after the locator has been built.
Reimplemented in vtkCellLocator, vtkStaticCellLocator, and vtkCellTreeLocator.
|
virtual |
Given a finite line defined by the two points (p1,p2), return the list of unique cell ids in the buckets containing the line.
It is possible that an empty cell list is returned. The user must provide the vtkIdList to populate. This method returns data only after the locator has been built.
Reimplemented in vtkCellLocator, and vtkStaticCellLocator.
|
virtual |
Returns the Id of the cell containing the point, returns -1 if no cell found.
This interface uses a tolerance of zero
Reimplemented in vtkCellLocator, vtkModifiedBSPTree, vtkStaticCellLocator, and vtkCellTreeLocator.
|
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.
Reimplemented in vtkCellLocator, vtkModifiedBSPTree, vtkCellLocator, and vtkModifiedBSPTree.
|
virtual |
Quickly test if a point is inside the bounds of a particular cell.
Some locators cache cell bounds and this function can make use of fast access to the data.
Reimplemented in vtkModifiedBSPTree.
|
protectedvirtual |
This command is used internally by the locator to copy all cell Bounds into the internal CellBounds array.
Subsequent calls to InsideCellBounds(...) can make use of the data A valid dataset must be present for this to work. Returns true if bounds wre copied, false otherwise.
|
protectedvirtual |
This command is used internally by the locator to copy all cell Bounds into the internal CellBounds array.
Subsequent calls to InsideCellBounds(...) can make use of the data A valid dataset must be present for this to work. Returns true if bounds wre copied, false otherwise.
|
protected |
Definition at line 274 of file vtkAbstractCellLocator.h.
|
protected |
Definition at line 275 of file vtkAbstractCellLocator.h.
|
protected |
Definition at line 276 of file vtkAbstractCellLocator.h.
|
protected |
Definition at line 277 of file vtkAbstractCellLocator.h.
|
protected |
Definition at line 278 of file vtkAbstractCellLocator.h.
|
protected |
Definition at line 279 of file vtkAbstractCellLocator.h.
|
protected |
Definition at line 280 of file vtkAbstractCellLocator.h.