a subclass of vtkFollower that ensures that data is always parallel to the axis defined by a vtkAxisActor. More...

#include <vtkAxisFollower.h>

Inheritance diagram for vtkAxisFollower:

Collaboration diagram for vtkAxisFollower:

Public Types
typedef vtkFollower	Superclass
Public Member Functions
virtual int	IsA (const char *type)
vtkAxisFollower *	NewInstance () const
virtual void	PrintSelf (ostream &os, vtkIndent indent)
virtual void	ComputeTransformMatrix (vtkRenderer *ren)
void	ShallowCopy (vtkProp *prop)

virtual void	SetAxis (vtkAxisActor *)
virtual vtkAxisActor *	GetAxis ()

virtual void	SetAutoCenter (int)
virtual int	GetAutoCenter ()
virtual void	AutoCenterOn ()
virtual void	AutoCenterOff ()

virtual void	SetEnableDistanceLOD (int)
virtual int	GetEnableDistanceLOD ()

virtual void	SetDistanceLODThreshold (double)
virtual double	GetDistanceLODThreshold ()

virtual void	SetEnableViewAngleLOD (int)
virtual int	GetEnableViewAngleLOD ()

virtual void	SetViewAngleLODThreshold (double)
virtual double	GetViewAngleLODThreshold ()

virtual void	SetScreenOffset (double)
virtual double	GetScreenOffset ()

virtual int	RenderOpaqueGeometry (vtkViewport *viewport)
virtual int	RenderTranslucentPolygonalGeometry (vtkViewport *viewport)
virtual void	Render (vtkRenderer *ren)
Static Public Member Functions
static int	IsTypeOf (const char *type)
static vtkAxisFollower *	SafeDownCast (vtkObjectBase *o)
static vtkAxisFollower *	New ()

static double	AutoScale (vtkViewport viewport, vtkCamera camera, double screenSize, double position[3])
Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkAxisFollower ()
	~vtkAxisFollower ()
void	CalculateOrthogonalVectors (double Rx[3], double Ry[3], double Rz[3], vtkAxisActor axis1, double dop, vtkRenderer *ren)
void	ComputeRotationAndTranlation (vtkRenderer ren, double translation[3], double Rx[3], double Ry[3], double Rz[3], vtkAxisActor axis)
void	ComputerAutoCenterTranslation (const double &autoScaleFactor, double translation[3])
int	TestDistanceVisibility ()
void	ExecuteViewAngleVisibility (double normal[3])
bool	IsTextUpsideDown (double a, double b)
Protected Attributes
int	AutoCenter
int	EnableDistanceLOD
double	DistanceLODThreshold
int	EnableViewAngleLOD
double	ViewAngleLODThreshold
double	ScreenOffset
vtkWeakPointer< vtkAxisActor >	Axis

Detailed Description

a subclass of vtkFollower that ensures that data is always parallel to the axis defined by a vtkAxisActor.

vtkAxisFollower is a subclass of vtkFollower that always follows its specified axis. More specifically it will not change its position or scale, but it will continually update its orientation so that it is aliged with the axis and facing at angle to the camera to provide maximum visibilty. This is typically used for text labels for 3d plots.

See also:: vtkActor vtkFollower vtkCamera vtkAxisActor vtkCubeAxesActor

Definition at line 40 of file vtkAxisFollower.h.

Member Typedef Documentation

typedef vtkFollower vtkAxisFollower::Superclass

Reimplemented from vtkFollower.

Definition at line 43 of file vtkAxisFollower.h.

Constructor & Destructor Documentation

vtkAxisFollower::vtkAxisFollower ( ) [protected]

vtkAxisFollower::~vtkAxisFollower ( ) [protected]

Member Function Documentation

static int vtkAxisFollower::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 vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkFollower.

virtual int vtkAxisFollower::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 vtkFollower.

static vtkAxisFollower* vtkAxisFollower::SafeDownCast ( vtkObjectBase * o ) [static]

Reimplemented from vtkFollower.

virtual vtkObjectBase* vtkAxisFollower::NewInstanceInternal ( ) const [protected, virtual]

Reimplemented from vtkFollower.

vtkAxisFollower* vtkAxisFollower::NewInstance ( ) const

Reimplemented from vtkFollower.

virtual void vtkAxisFollower::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 vtkFollower.

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

Creates a follower with no camera set

Reimplemented from vtkFollower.

virtual void vtkAxisFollower::SetAxis ( vtkAxisActor * ) [virtual]

Set axis that needs to be followed.

virtual vtkAxisActor* vtkAxisFollower::GetAxis ( ) [virtual]

Set axis that needs to be followed.

virtual void vtkAxisFollower::SetAutoCenter ( int ) [virtual]

Set/Get state of auto center mode where additional translation will be added to make sure the underlying geometry has its pivot point at the center of its bounds.

virtual int vtkAxisFollower::GetAutoCenter ( ) [virtual]

Set/Get state of auto center mode where additional translation will be added to make sure the underlying geometry has its pivot point at the center of its bounds.

virtual void vtkAxisFollower::AutoCenterOn ( ) [virtual]

Set/Get state of auto center mode where additional translation will be added to make sure the underlying geometry has its pivot point at the center of its bounds.

virtual void vtkAxisFollower::AutoCenterOff ( ) [virtual]

Set/Get state of auto center mode where additional translation will be added to make sure the underlying geometry has its pivot point at the center of its bounds.

virtual void vtkAxisFollower::SetEnableDistanceLOD ( int ) [virtual]

Enable / disable use of distance based LOD. If enabled the actor will not be visible at a certain distance from the camera. Default is false.

virtual int vtkAxisFollower::GetEnableDistanceLOD ( ) [virtual]

Enable / disable use of distance based LOD. If enabled the actor will not be visible at a certain distance from the camera. Default is false.

virtual void vtkAxisFollower::SetDistanceLODThreshold ( double ) [virtual]

Set distance LOD threshold (0.0 - 1.0).This determines at what fraction of camera far clip range, actor is not visible. Default is 0.80.

virtual double vtkAxisFollower::GetDistanceLODThreshold ( ) [virtual]

Set distance LOD threshold (0.0 - 1.0).This determines at what fraction of camera far clip range, actor is not visible. Default is 0.80.

virtual void vtkAxisFollower::SetEnableViewAngleLOD ( int ) [virtual]

Enable / disable use of view angle based LOD. If enabled the actor will not be visible at a certain view angle. Default is true.

virtual int vtkAxisFollower::GetEnableViewAngleLOD ( ) [virtual]

Enable / disable use of view angle based LOD. If enabled the actor will not be visible at a certain view angle. Default is true.

virtual void vtkAxisFollower::SetViewAngleLODThreshold ( double ) [virtual]

Set view angle LOD threshold (0.0 - 1.0).This determines at what view angle to geometry will make the geometry not visibile. Default is 0.34.

virtual double vtkAxisFollower::GetViewAngleLODThreshold ( ) [virtual]

Set view angle LOD threshold (0.0 - 1.0).This determines at what view angle to geometry will make the geometry not visibile. Default is 0.34.

virtual void vtkAxisFollower::SetScreenOffset ( double ) [virtual]

Set/Get the desired screen offset from the axis.

virtual double vtkAxisFollower::GetScreenOffset ( ) [virtual]

Set/Get the desired screen offset from the axis.

virtual int vtkAxisFollower::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 vtkFollower.

virtual int vtkAxisFollower::RenderTranslucentPolygonalGeometry ( 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 vtkFollower.

virtual void vtkAxisFollower::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.

Reimplemented from vtkFollower.

virtual void vtkAxisFollower::ComputeTransformMatrix ( vtkRenderer * ren ) [virtual]

Generate the matrix based on ivars. This method overloads its superclasses ComputeMatrix() method due to the special vtkFollower matrix operations.

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

Shallow copy of a follower. Overloads the virtual vtkProp method.

Reimplemented from vtkFollower.

static double vtkAxisFollower::AutoScale	(	vtkViewport *	viewport,
		vtkCamera *	camera,
		double	screenSize,
		double	position[3]
	)		`[static]`

Calculate scale factor to maintain same size of a object on the screen.

void vtkAxisFollower::CalculateOrthogonalVectors	(	double	Rx[3],
		double	Ry[3],
		double	Rz[3],
		vtkAxisActor *	axis1,
		double *	dop,
		vtkRenderer *	ren
	)		`[protected]`

void vtkAxisFollower::ComputeRotationAndTranlation	(	vtkRenderer *	ren,
		double	translation[3],
		double	Rx[3],
		double	Ry[3],
		double	Rz[3],
		vtkAxisActor *	axis
	)		`[protected]`