---

vtkPointPicker Class Reference

select a point by shooting a ray into a graphics window. More...

#include <vtkPointPicker.h>

Inheritance diagram for vtkPointPicker:

[legend]Collaboration diagram for vtkPointPicker:

[legend]List of all members.

Public Methods
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
virtual vtkIdType	GetPointId ()
Static Public Methods
vtkPointPicker *	New ()
int	IsTypeOf (const char *type)
vtkPointPicker *	SafeDownCast (vtkObject *o)
Protected Methods
	vtkPointPicker ()
	~vtkPointPicker ()
float	IntersectWithLine (float p1[3], float p2[3], float tol, vtkAssemblyPath *path, vtkProp3D *p, vtkAbstractMapper3D *m)
void	Initialize ()
Protected Attributes
vtkIdType	PointId

---

Detailed Description

select a point by shooting a ray into a graphics window.

Date:

2001/10/11 13:38:20

Revision:

1.33

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 closest point within the tolerance along the pick ray.

See also:

vtkPicker vtkCellPicker.

Tests:

vtkPointPicker (Tests)

Definition at line 63 of file vtkPointPicker.h.

---

Constructor & Destructor Documentation

vtkPointPicker::vtkPointPicker (    )  [protected]

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

Definition at line 77 of file vtkPointPicker.h.

---

Member Function Documentation

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]

Return the class name as a string. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkPicker.

int vtkPointPicker::IsTypeOf (  const char *    type )  [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 vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkPicker.

virtual int vtkPointPicker::IsA (  const char *    type )  [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 vtkPicker.

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

Will cast the supplied object to vtkObject* is this is a safe operation (i.e., a safe downcast); otherwise NULL is returned. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. 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.

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

Reimplemented from vtkPicker.

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

Reimplemented from vtkPicker.

---

Member Data Documentation

vtkIdType vtkPointPicker::PointId [protected]

Definition at line 79 of file vtkPointPicker.h.

---

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

• Rendering/vtkPointPicker.h

---