vtkPointPicker Class Reference

#include <vtkPointPicker.h>

Inheritance diagram for vtkPointPicker:

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Collaboration diagram for vtkPointPicker:

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List of all members.


Detailed Description

select a point by shooting a ray into a graphics window

vtkPointPicker is used to select a point by shooting a ray into a graphics window and intersecting with actor's defining geometry - specifically its points. Beside returning coordinates, actor, and mapper, vtkPointPicker returns the id of the point projecting closest onto the ray (within the specified tolerance). Ties are broken (i.e., multiple points all projecting within the tolerance along the pick ray) by choosing the point closest to the ray.

See also:
vtkPicker vtkCellPicker.
Tests:
vtkPointPicker (Tests)

Definition at line 40 of file vtkPointPicker.h.


Public Types

typedef vtkPicker Superclass

Public Member Functions

virtual const char * GetClassName ()
virtual int IsA (const char *type)
void PrintSelf (ostream &os, vtkIndent indent)
virtual vtkIdType GetPointId ()

Static Public Member Functions

static vtkPointPickerNew ()
static int IsTypeOf (const char *type)
static vtkPointPickerSafeDownCast (vtkObject *o)

Protected Member Functions

 vtkPointPicker ()
 ~vtkPointPicker ()
double IntersectWithLine (double p1[3], double p2[3], double tol, vtkAssemblyPath *path, vtkProp3D *p, vtkAbstractMapper3D *m)
void Initialize ()

Protected Attributes

vtkIdType PointId

Member Typedef Documentation

Reimplemented from vtkPicker.

Definition at line 44 of file vtkPointPicker.h.


Constructor & Destructor Documentation

vtkPointPicker::vtkPointPicker (  )  [protected]

vtkPointPicker::~vtkPointPicker (  )  [inline, protected]

Definition at line 54 of file vtkPointPicker.h.


Member Function Documentation

static vtkPointPicker* vtkPointPicker::New (  )  [static]

Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

Reimplemented from vtkPicker.

virtual const char* vtkPointPicker::GetClassName (  )  [virtual]

Reimplemented from vtkPicker.

static int vtkPointPicker::IsTypeOf ( const char *  name  )  [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.

Reimplemented from vtkPicker.

virtual int vtkPointPicker::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 vtkTypeRevisionMacro found in vtkSetGet.h.

Reimplemented from vtkPicker.

static vtkPointPicker* vtkPointPicker::SafeDownCast ( vtkObject o  )  [static]

Reimplemented from vtkPicker.

void vtkPointPicker::PrintSelf ( ostream &  os,
vtkIndent  indent 
) [virtual]

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 vtkPicker.

virtual vtkIdType vtkPointPicker::GetPointId (  )  [virtual]

Get the id of the picked point. If PointId = -1, nothing was picked.

double vtkPointPicker::IntersectWithLine ( double  p1[3],
double  p2[3],
double  tol,
vtkAssemblyPath path,
vtkProp3D p,
vtkAbstractMapper3D m 
) [protected, virtual]

Reimplemented from vtkPicker.

void vtkPointPicker::Initialize (  )  [protected, virtual]

Reimplemented from vtkPicker.


Member Data Documentation

Definition at line 54 of file vtkPointPicker.h.


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

Generated on Sat Dec 27 13:43:01 2008 for VTK by  doxygen 1.5.6