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vtkFollower Class Reference

a subclass of actor that always faces the camera. More...

#include <vtkFollower.h>

Inheritance diagram for vtkFollower:

[legend]Collaboration diagram for vtkFollower:

[legend]List of all members.

Public Methods
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
void	ShallowCopy (vtkProp *prop)
virtual void	SetCamera (vtkCamera *)
virtual vtkCamera *	GetCamera ()
virtual int	RenderOpaqueGeometry (vtkViewport *viewport)
virtual int	RenderTranslucentGeometry (vtkViewport *viewport)
virtual void	Render (vtkRenderer *ren)
virtual void	GetMatrix (vtkMatrix4x4 *m)
virtual void	GetMatrix (double m[16])
virtual vtkMatrix4x4 *	GetMatrix ()
Static Public Methods
int	IsTypeOf (const char *type)
vtkFollower *	SafeDownCast (vtkObject *o)
vtkFollower *	New ()
Protected Methods
	vtkFollower ()
	~vtkFollower ()
Protected Attributes
vtkCamera *	Camera
vtkActor *	Device

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Detailed Description

a subclass of actor that always faces the camera.

Date:

2001/10/21 14:06:36

Revision:

1.47

vtkFollower is a subclass of vtkActor that always follows its specified camera. More specifically it will not change its position or scale, but it will continually update its orientation so that it is right side up and facing the camera. This is typically used for text labels in a scene. All of the adjustments that can be made to an actor also will take effect with a follower. So, if you change the orientation of the follower by 90 degrees, then it will follow the camera, but be off by 90 degrees.

See also:

vtkActor vtkCamera

Examples:

vtkFollower (Examples)

Tests:

vtkFollower (Tests)

Definition at line 71 of file vtkFollower.h.

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Constructor & Destructor Documentation

vtkFollower::vtkFollower (    )  [protected]

vtkFollower::~vtkFollower (    )  [protected]

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Member Function Documentation

virtual const char* vtkFollower::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 vtkActor.

int vtkFollower::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 vtkActor.

virtual int vtkFollower::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 vtkActor.

vtkFollower* vtkFollower::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 vtkActor.

void vtkFollower::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 vtkActor.

vtkFollower* vtkFollower::New (    )  [static]

Creates a follower with no camera set Reimplemented from vtkActor.

virtual void vtkFollower::SetCamera (  vtkCamera *    )  [virtual]

Set/Get the camera to follow. If this is not set, then the follower won't know who to follow.

virtual vtkCamera* vtkFollower::GetCamera (    )  [virtual]

Set/Get the camera to follow. If this is not set, then the follower won't know who to follow.

virtual int vtkFollower::RenderOpaqueGeometry (  vtkViewport *    viewport )  [virtual]

This causes the actor to be rendered. It in turn will render the actor's property, texture map and then mapper. If a property hasn't been assigned, then the actor will create one automatically. Reimplemented from vtkActor.

virtual int vtkFollower::RenderTranslucentGeometry (  vtkViewport *    viewport )  [virtual]

This causes the actor to be rendered. It in turn will render the actor's property, texture map and then mapper. If a property hasn't been assigned, then the actor will create one automatically. Reimplemented from vtkActor.

virtual void vtkFollower::Render (  vtkRenderer *    ren )  [virtual]

This causes the actor to be rendered. It in turn will render the actor's property, texture map and then mapper. If a property hasn't been assigned, then the actor will create one automatically.

virtual void vtkFollower::GetMatrix (  vtkMatrix4x4 *    m )  [virtual]

Copy the follower's composite 4x4 matrix into the matrix provided. Reimplemented from vtkProp3D.

virtual void vtkFollower::GetMatrix (  double    m[16] )  [inline, virtual]

Copy the follower's composite 4x4 matrix into the matrix provided. Reimplemented from vtkProp3D. Definition at line 99 of file vtkFollower.h.

virtual vtkMatrix4x4* vtkFollower::GetMatrix (    )  [inline, virtual]

Copy the follower's composite 4x4 matrix into the matrix provided. Reimplemented from vtkProp3D. Definition at line 101 of file vtkFollower.h.

void vtkFollower::ShallowCopy (  vtkProp *    prop )  [virtual]

Shallow copy of a follower. Overloads the virtual vtkProp method. Reimplemented from vtkActor.

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Member Data Documentation

vtkCamera* vtkFollower::Camera [protected]

Definition at line 112 of file vtkFollower.h.

vtkActor* vtkFollower::Device [protected]

Definition at line 113 of file vtkFollower.h.

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

• Rendering/vtkFollower.h

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