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vtkLocationSelector Class Reference

selects cells containing or points near chosen point locations. More...

#include <vtkLocationSelector.h>

Inheritance diagram for vtkLocationSelector:
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Collaboration diagram for vtkLocationSelector:
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Public Types

typedef vtkSelector Superclass
 
- Public Types inherited from vtkSelector
typedef vtkObject Superclass
 

Public Member Functions

virtual vtkTypeBool IsA (const char *type)
 Return 1 if this class is the same type of (or a subclass of) the named class. More...
 
vtkLocationSelectorNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses. More...
 
void Initialize (vtkSelectionNode *node) override
 Sets the vtkSelectionNode used by this selection operator and initializes the data structures in the selection operator based on the selection. More...
 
void Finalize () override
 Does any cleanup of objects created in Initialize. More...
 
- Public Member Functions inherited from vtkSelector
vtkSelectorNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses. More...
 
virtual void Execute (vtkDataObject *input, vtkDataObject *output)
 Given an input and the vtkSelectionNode passed into the Initialize() method, add to the output a vtkSignedChar attribute array indicating whether each element is inside (1) or outside (0) the selection. More...
 
virtual void SetInsidednessArrayName (std::string)
 Get/Set the name of the array to use for the insidedness array to add to the output in Execute call. More...
 
virtual std::string GetInsidednessArrayName ()
 
- Public Member Functions inherited from vtkObject
 vtkBaseTypeMacro (vtkObject, vtkObjectBase)
 
virtual void DebugOn ()
 Turn debugging output on. More...
 
virtual void DebugOff ()
 Turn debugging output off. More...
 
bool GetDebug ()
 Get the value of the debug flag. More...
 
void SetDebug (bool debugFlag)
 Set the value of the debug flag. More...
 
virtual void Modified ()
 Update the modification time for this object. More...
 
virtual vtkMTimeType GetMTime ()
 Return this object's modified time. More...
 
unsigned long AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
unsigned long AddObserver (const char *event, vtkCommand *, float priority=0.0f)
 
vtkCommandGetCommand (unsigned long tag)
 
void RemoveObserver (vtkCommand *)
 
void RemoveObservers (unsigned long event, vtkCommand *)
 
void RemoveObservers (const char *event, vtkCommand *)
 
vtkTypeBool HasObserver (unsigned long event, vtkCommand *)
 
vtkTypeBool HasObserver (const char *event, vtkCommand *)
 
void RemoveObserver (unsigned long tag)
 
void RemoveObservers (unsigned long event)
 
void RemoveObservers (const char *event)
 
void RemoveAllObservers ()
 
vtkTypeBool HasObserver (unsigned long event)
 
vtkTypeBool HasObserver (const char *event)
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
 Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
 Allow user to set the AbortFlagOn() with the return value of the callback method. More...
 
int InvokeEvent (unsigned long event, void *callData)
 This method invokes an event and return whether the event was aborted or not. More...
 
int InvokeEvent (const char *event, void *callData)
 
int InvokeEvent (unsigned long event)
 
int InvokeEvent (const char *event)
 
- Public Member Functions inherited from vtkObjectBase
const char * GetClassName () const
 Return the class name as a string. More...
 
virtual void Delete ()
 Delete a VTK object. More...
 
virtual void FastDelete ()
 Delete a reference to this object. More...
 
void InitializeObjectBase ()
 
void Print (ostream &os)
 Print an object to an ostream. More...
 
virtual void PrintHeader (ostream &os, vtkIndent indent)
 
virtual void PrintTrailer (ostream &os, vtkIndent indent)
 
virtual void Register (vtkObjectBase *o)
 Increase the reference count (mark as used by another object). More...
 
virtual void UnRegister (vtkObjectBase *o)
 Decrease the reference count (release by another object). More...
 
int GetReferenceCount ()
 Return the current reference count of this object. More...
 
void SetReferenceCount (int)
 Sets the reference count. More...
 
void PrintRevisions (ostream &)
 Legacy. More...
 

Static Public Member Functions

static vtkLocationSelectorNew ()
 
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkLocationSelectorSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkSelector
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkSelectorSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkObject
static vtkObjectNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 
static void BreakOnError ()
 This method is called when vtkErrorMacro executes. More...
 
static void SetGlobalWarningDisplay (int val)
 This is a global flag that controls whether any debug, warning or error messages are displayed. More...
 
static void GlobalWarningDisplayOn ()
 
static void GlobalWarningDisplayOff ()
 
static int GetGlobalWarningDisplay ()
 
- Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool IsTypeOf (const char *name)
 Return 1 if this class type is the same type of (or a subclass of) the named class. More...
 
static vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkLocationSelector ()
 
 ~vtkLocationSelector () override
 
bool ComputeSelectedElements (vtkDataObject *input, vtkSignedCharArray *insidednessArray) override
 This method computes whether or not each element in the dataset is inside the selection and populates the given array with 0 (outside the selection) or 1 (inside the selection). More...
 
- Protected Member Functions inherited from vtkSelector
 vtkSelector ()
 
virtual ~vtkSelector () override
 
virtual SelectionMode GetAMRBlockSelection (unsigned int level, unsigned int index)
 Returns whether the AMR block is to be processed. More...
 
virtual SelectionMode GetBlockSelection (unsigned int compositeIndex)
 Returns whether the block is to be processed. More...
 
vtkSmartPointer< vtkSignedCharArrayCreateInsidednessArray (vtkIdType numElems)
 Creates an array suitable for storing insideness. More...
 
vtkSmartPointer< vtkSignedCharArrayComputeCellsContainingSelectedPoints (vtkDataObject *data, vtkSignedCharArray *selectedPoints)
 Given a data object and selected points, return an array indicating the insidedness of cells that contain at least one of the selected points. More...
 
- Protected Member Functions inherited from vtkObject
 vtkObject ()
 
 ~vtkObject () override
 
void RegisterInternal (vtkObjectBase *, vtkTypeBool check) override
 
void UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override
 
void InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr)
 These methods allow a command to exclusively grab all events. More...
 
void InternalReleaseFocus ()
 
- Protected Member Functions inherited from vtkObjectBase
 vtkObjectBase ()
 
virtual ~vtkObjectBase ()
 
virtual void CollectRevisions (ostream &)
 
virtual void ReportReferences (vtkGarbageCollector *)
 
 vtkObjectBase (const vtkObjectBase &)
 
void operator= (const vtkObjectBase &)
 

Additional Inherited Members

- Protected Types inherited from vtkSelector
enum  SelectionMode { INCLUDE, EXCLUDE, INHERIT }
 
- Protected Attributes inherited from vtkSelector
vtkSelectionNodeNode = nullptr
 
std::string InsidednessArrayName
 
- Protected Attributes inherited from vtkObject
bool Debug
 
vtkTimeStamp MTime
 
vtkSubjectHelper * SubjectHelper
 
- Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32 ReferenceCount
 
vtkWeakPointerBase ** WeakPointers
 

Detailed Description

selects cells containing or points near chosen point locations.

vtkLocationSelector is vtkSelector that can select elements containing or near matching elements. It handles vtkSelectionNode::LOCATIONS

Definition at line 30 of file vtkLocationSelector.h.

Member Typedef Documentation

◆ Superclass

Definition at line 34 of file vtkLocationSelector.h.

Constructor & Destructor Documentation

◆ vtkLocationSelector()

vtkLocationSelector::vtkLocationSelector ( )
protected

◆ ~vtkLocationSelector()

vtkLocationSelector::~vtkLocationSelector ( )
overrideprotected

Member Function Documentation

◆ New()

static vtkLocationSelector* vtkLocationSelector::New ( )
static

◆ IsTypeOf()

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

◆ IsA()

virtual vtkTypeBool vtkLocationSelector::IsA ( const char *  name)
virtual

Return 1 if this class is the same type of (or a subclass of) the named class.

Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkSelector.

◆ SafeDownCast()

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

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkLocationSelector::NewInstanceInternal ( ) const
protectedvirtual

Reimplemented from vtkSelector.

◆ NewInstance()

vtkLocationSelector* vtkLocationSelector::NewInstance ( ) const

◆ PrintSelf()

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

Methods invoked by print to print information about the object including superclasses.

Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkObject.

◆ Initialize()

void vtkLocationSelector::Initialize ( vtkSelectionNode node)
overridevirtual

Sets the vtkSelectionNode used by this selection operator and initializes the data structures in the selection operator based on the selection.

(for example in the vtkFrustumSelector this creates the vtkPlanes implicit function to represent the frustum).

Parameters
nodeThe selection node that determines the behavior of this operator.

Reimplemented from vtkSelector.

◆ Finalize()

void vtkLocationSelector::Finalize ( )
overridevirtual

Does any cleanup of objects created in Initialize.

Reimplemented from vtkSelector.

◆ ComputeSelectedElements()

bool vtkLocationSelector::ComputeSelectedElements ( vtkDataObject input,
vtkSignedCharArray insidednessArray 
)
overrideprotectedvirtual

This method computes whether or not each element in the dataset is inside the selection and populates the given array with 0 (outside the selection) or 1 (inside the selection).

The vtkDataObject passed in will never be a vtkCompositeDataSet subclass.

What type of elements are operated over is determined by the vtkSelectionNode's field association. The insidednessArray passed in should have the correct number of elements for that field type or it will be resized.

Returns true for successful completion. The operator should only return false when it cannot operate on the inputs. In which case, it is assumed that the insidednessArray may have been left untouched by this method and the calling code will fill it with 0.

Implements vtkSelector.


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