vtkLODActor Class Reference

an actor that supports multiple levels of detail More...

#include <vtkLODActor.h>

Inheritance diagram for vtkLODActor:

Collaboration diagram for vtkLODActor:

Public Types
typedef vtkActor	Superclass
Public Types inherited from vtkActor
typedef vtkProp3D	Superclass
Public Types inherited from vtkProp3D
typedef vtkProp	Superclass
Public Types inherited from vtkProp
typedef vtkObject	Superclass
Public Types inherited from vtkObject
typedef vtkObjectBase	Superclass

Public Member Functions
virtual int	IsA (const char *type)
vtkLODActor *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent)
virtual void	Render (vtkRenderer *, vtkMapper *)
int	RenderOpaqueGeometry (vtkViewport *viewport)
void	ReleaseGraphicsResources (vtkWindow *)
void	AddLODMapper (vtkMapper *mapper)
void	Modified ()
void	ShallowCopy (vtkProp *prop)
virtual void	SetLowResFilter (vtkPolyDataAlgorithm *)
virtual void	SetMediumResFilter (vtkPolyDataAlgorithm *)
virtual vtkPolyDataAlgorithm *	GetLowResFilter ()
virtual vtkPolyDataAlgorithm *	GetMediumResFilter ()
virtual int	GetNumberOfCloudPoints ()
virtual void	SetNumberOfCloudPoints (int)
virtual vtkMapperCollection *	GetLODMappers ()
Public Member Functions inherited from vtkActor
vtkActor *	NewInstance () const
virtual void	GetActors (vtkPropCollection *)
virtual int	HasTranslucentPolygonalGeometry ()
virtual vtkProperty *	MakeProperty ()
virtual void	SetMapper (vtkMapper *)
virtual void	ApplyProperties ()
unsigned long int	GetMTime ()
virtual unsigned long	GetRedrawMTime ()
virtual bool	GetSupportsSelection ()
virtual int	RenderTranslucentPolygonalGeometry (vtkViewport *viewport)
void	SetProperty (vtkProperty *lut)
vtkProperty *	GetProperty ()
void	SetBackfaceProperty (vtkProperty *lut)
virtual vtkProperty *	GetBackfaceProperty ()
virtual void	SetTexture (vtkTexture *)
virtual vtkTexture *	GetTexture ()
virtual vtkMapper *	GetMapper ()
void	GetBounds (double bounds[6])
double *	GetBounds ()
virtual bool	GetForceOpaque ()
virtual void	SetForceOpaque (bool)
virtual void	ForceOpaqueOn ()
virtual void	ForceOpaqueOff ()
virtual bool	GetForceTranslucent ()
virtual void	SetForceTranslucent (bool)
virtual void	ForceTranslucentOn ()
virtual void	ForceTranslucentOff ()
Public Member Functions inherited from vtkProp3D
vtkProp3D *	NewInstance () const
virtual void	SetPosition (double pos[3])
virtual double *	GetPosition ()
virtual void	GetPosition (double data[3])
void	AddPosition (double deltaPosition[3])
void	AddPosition (double deltaX, double deltaY, double deltaZ)
double *	GetCenter ()
double *	GetXRange ()
double *	GetYRange ()
double *	GetZRange ()
double	GetLength ()
void	RotateX (double)
void	RotateY (double)
void	RotateZ (double)
void	RotateWXYZ (double w, double x, double y, double z)
void	SetOrientation (double x, double y, double z)
void	SetOrientation (double orientation[3])
double *	GetOrientationWXYZ ()
void	AddOrientation (double x, double y, double z)
void	AddOrientation (double orentation[3])
void	PokeMatrix (vtkMatrix4x4 *matrix)
void	InitPathTraversal ()
unsigned long int	GetMTime ()
unsigned long int	GetUserTransformMatrixMTime ()
virtual void	ComputeMatrix ()
virtual void	SetPosition (double x, double y, double z)
virtual void	SetOrigin (double x, double y, double z)
virtual void	SetOrigin (const double pos[3])
virtual double *	GetOrigin ()
virtual void	GetOrigin (double data[3])
virtual void	SetScale (double x, double y, double z)
virtual void	SetScale (double scale[3])
virtual double *	GetScale ()
virtual void	GetScale (double data[3])
void	SetScale (double s)
void	SetUserTransform (vtkLinearTransform *transform)
virtual vtkLinearTransform *	GetUserTransform ()
void	SetUserMatrix (vtkMatrix4x4 *matrix)
vtkMatrix4x4 *	GetUserMatrix ()
virtual void	GetMatrix (vtkMatrix4x4 *m)
virtual void	GetMatrix (double m[16])
void	GetBounds (double bounds[6])
double *	GetOrientation ()
void	GetOrientation (double orentation[3])
vtkMatrix4x4 *	GetMatrix ()
virtual int	GetIsIdentity ()
Public Member Functions inherited from vtkProp
vtkProp *	NewInstance () const
virtual void	Pick ()
virtual bool	HasKeys (vtkInformation *requiredKeys)
virtual void	BuildPaths (vtkAssemblyPaths *paths, vtkAssemblyPath *path)
virtual void	GetActors2D (vtkPropCollection *)
virtual void	GetVolumes (vtkPropCollection *)
virtual void	SetVisibility (int)
virtual int	GetVisibility ()
virtual void	VisibilityOn ()
virtual void	VisibilityOff ()
virtual void	SetPickable (int)
virtual int	GetPickable ()
virtual void	PickableOn ()
virtual void	PickableOff ()
virtual void	SetDragable (int)
virtual int	GetDragable ()
virtual void	DragableOn ()
virtual void	DragableOff ()
virtual void	SetUseBounds (bool)
virtual bool	GetUseBounds ()
virtual void	UseBoundsOn ()
virtual void	UseBoundsOff ()
virtual vtkAssemblyPath *	GetNextPath ()
virtual int	GetNumberOfPaths ()
virtual void	PokeMatrix (vtkMatrix4x4 *vtkNotUsed(matrix))
virtual vtkInformation *	GetPropertyKeys ()
virtual void	SetPropertyKeys (vtkInformation *keys)
virtual int	RenderVolumetricGeometry (vtkViewport *)
virtual int	RenderOverlay (vtkViewport *)
virtual bool	RenderFilteredOpaqueGeometry (vtkViewport *v, vtkInformation *requiredKeys)
virtual bool	RenderFilteredTranslucentPolygonalGeometry (vtkViewport *v, vtkInformation *requiredKeys)
virtual bool	RenderFilteredVolumetricGeometry (vtkViewport *v, vtkInformation *requiredKeys)
virtual bool	RenderFilteredOverlay (vtkViewport *v, vtkInformation *requiredKeys)
virtual double	GetEstimatedRenderTime (vtkViewport *)
virtual double	GetEstimatedRenderTime ()
virtual void	SetEstimatedRenderTime (double t)
virtual void	RestoreEstimatedRenderTime ()
virtual void	AddEstimatedRenderTime (double t, vtkViewport *vtkNotUsed(vp))
virtual void	SetAllocatedRenderTime (double t, vtkViewport *vtkNotUsed(v))
virtual double	GetAllocatedRenderTime ()
void	SetRenderTimeMultiplier (double t)
virtual double	GetRenderTimeMultiplier ()
virtual int	GetNumberOfConsumers ()
void	AddConsumer (vtkObject *c)
void	RemoveConsumer (vtkObject *c)
vtkObject *	GetConsumer (int i)
int	IsConsumer (vtkObject *c)
Public Member Functions inherited from vtkObject
vtkObject *	NewInstance () const
virtual void	DebugOn ()
virtual void	DebugOff ()
bool	GetDebug ()
void	SetDebug (bool debugFlag)
unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
unsigned long	AddObserver (const char *event, vtkCommand *, float priority=0.0f)
vtkCommand *	GetCommand (unsigned long tag)
void	RemoveObserver (vtkCommand *)
void	RemoveObservers (unsigned long event, vtkCommand *)
void	RemoveObservers (const char *event, vtkCommand *)
int	HasObserver (unsigned long event, vtkCommand *)
int	HasObserver (const char *event, vtkCommand *)
void	RemoveObserver (unsigned long tag)
void	RemoveObservers (unsigned long event)
void	RemoveObservers (const char *event)
void	RemoveAllObservers ()
int	HasObserver (unsigned long event)
int	HasObserver (const char *event)
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
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)
int	InvokeEvent (unsigned long event, void *callData)
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
virtual void	Delete ()
virtual void	FastDelete ()
void	Print (ostream &os)
virtual void	Register (vtkObjectBase *o)
virtual void	UnRegister (vtkObjectBase *o)
void	SetReferenceCount (int)
void	PrintRevisions (ostream &)
virtual void	PrintHeader (ostream &os, vtkIndent indent)
virtual void	PrintTrailer (ostream &os, vtkIndent indent)
int	GetReferenceCount ()

Static Public Member Functions
static int	IsTypeOf (const char *type)
static vtkLODActor *	SafeDownCast (vtkObjectBase *o)
static vtkLODActor *	New ()
Static Public Member Functions inherited from vtkActor
static int	IsTypeOf (const char *type)
static vtkActor *	SafeDownCast (vtkObjectBase *o)
static vtkActor *	New ()
Static Public Member Functions inherited from vtkProp3D
static int	IsTypeOf (const char *type)
static vtkProp3D *	SafeDownCast (vtkObjectBase *o)
Static Public Member Functions inherited from vtkProp
static int	IsTypeOf (const char *type)
static vtkProp *	SafeDownCast (vtkObjectBase *o)
static vtkInformationIntegerKey *	GeneralTextureUnit ()
static vtkInformationDoubleVectorKey *	GeneralTextureTransform ()
Static Public Member Functions inherited from vtkObject
static int	IsTypeOf (const char *type)
static vtkObject *	SafeDownCast (vtkObjectBase *o)
static vtkObject *	New ()
static void	BreakOnError ()
static void	SetGlobalWarningDisplay (int val)
static void	GlobalWarningDisplayOn ()
static void	GlobalWarningDisplayOff ()
static int	GetGlobalWarningDisplay ()
Static Public Member Functions inherited from vtkObjectBase
static int	IsTypeOf (const char *name)
static vtkObjectBase *	New ()

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkLODActor ()
	~vtkLODActor ()
virtual void	CreateOwnLODs ()
virtual void	UpdateOwnLODs ()
virtual void	DeleteOwnLODs ()
Protected Member Functions inherited from vtkActor
	vtkActor ()
	~vtkActor ()
int	GetIsOpaque ()
Protected Member Functions inherited from vtkProp3D
	vtkProp3D ()
	~vtkProp3D ()
Protected Member Functions inherited from vtkProp
	vtkProp ()
	~vtkProp ()
Protected Member Functions inherited from vtkObject
	vtkObject ()
virtual	~vtkObject ()
virtual void	RegisterInternal (vtkObjectBase *, int check)
virtual void	UnRegisterInternal (vtkObjectBase *, int check)
void	InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=NULL)
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 &)

Protected Attributes
vtkActor *	Device
vtkMapperCollection *	LODMappers
vtkPolyDataAlgorithm *	LowResFilter
vtkPolyDataAlgorithm *	MediumResFilter
vtkPolyDataMapper *	LowMapper
vtkPolyDataMapper *	MediumMapper
vtkTimeStamp	BuildTime
int	NumberOfCloudPoints
Protected Attributes inherited from vtkActor
bool	ForceOpaque
bool	ForceTranslucent
vtkProperty *	Property
vtkProperty *	BackfaceProperty
vtkTexture *	Texture
vtkMapper *	Mapper
double	MapperBounds [6]
vtkTimeStamp	BoundsMTime
Protected Attributes inherited from vtkProp3D
vtkLinearTransform *	UserTransform
vtkMatrix4x4 *	UserMatrix
vtkMatrix4x4 *	Matrix
vtkTimeStamp	MatrixMTime
double	Origin [3]
double	Position [3]
double	Orientation [3]
double	Scale [3]
double	Center [3]
vtkTransform *	Transform
double	Bounds [6]
vtkProp3D *	CachedProp3D
int	IsIdentity
Protected Attributes inherited from vtkProp
int	Visibility
int	Pickable
int	Dragable
bool	UseBounds
double	AllocatedRenderTime
double	EstimatedRenderTime
double	SavedEstimatedRenderTime
double	RenderTimeMultiplier
int	NumberOfConsumers
vtkObject **	Consumers
vtkAssemblyPaths *	Paths
vtkInformation *	PropertyKeys
Protected Attributes inherited from vtkObject
bool	Debug
vtkTimeStamp	MTime
vtkSubjectHelper *	SubjectHelper
Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount
vtkWeakPointerBase **	WeakPointers

Detailed Description

an actor that supports multiple levels of detail

vtkLODActor is an actor that stores multiple levels of detail (LOD) and can automatically switch between them. It selects which level of detail to use based on how much time it has been allocated to render. Currently a very simple method of TotalTime/NumberOfActors is used. (In the future this should be modified to dynamically allocate the rendering time between different actors based on their needs.)

There are three levels of detail by default. The top level is just the normal data. The lowest level of detail is a simple bounding box outline of the actor. The middle level of detail is a point cloud of a fixed number of points that have been randomly sampled from the mapper's input data. Point attributes are copied over to the point cloud. These two lower levels of detail are accomplished by creating instances of a vtkOutlineFilter (low-res) and vtkMaskPoints (medium-res). Additional levels of detail can be add using the AddLODMapper() method.

To control the frame rate, you typically set the vtkRenderWindowInteractor DesiredUpdateRate and StillUpdateRate. This then will cause vtkLODActor to adjust its LOD to fulfill the requested update rate.

For greater control on levels of detail, see also vtkLODProp3D. That class allows arbitrary definition of each LOD.

Warning

If you provide your own mappers, you are responsible for setting its ivars correctly, such as ScalarRange, LookupTable, and so on.

On some systems the point cloud rendering (the default, medium level of detail) can result in points so small that they can hardly be seen. In this case, use the GetProperty()->SetPointSize() method to increase the rendered size of the points.

See also

vtkActor vtkRenderer vtkLODProp3D

Examples:

vtkLODActor (Examples)

Tests:

vtkLODActor (Tests)

Definition at line 75 of file vtkLODActor.h.

Member Typedef Documentation

typedef vtkActor vtkLODActor::Superclass

Definition at line 78 of file vtkLODActor.h.

Constructor & Destructor Documentation

vtkLODActor::vtkLODActor ( )

protected

vtkLODActor::~vtkLODActor ( )

protected

Member Function Documentation

static int vtkLODActor::IsTypeOf ( const char *  type )

static

virtual int vtkLODActor::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 vtkActor.

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

static

virtual vtkObjectBase* vtkLODActor::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkActor.

vtkLODActor* vtkLODActor::NewInstance

(

)

const

void vtkLODActor::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.

static vtkLODActor* vtkLODActor::New ( )

static

Creates a vtkLODActor with the following defaults: origin(0,0,0) position=(0,0,0) scale=(1,1,1) visibility=1 pickable=1 dragable=1 orientation=(0,0,0). NumberOfCloudPoints is set to 150.

virtual void vtkLODActor::Render ( vtkRenderer *  , vtkMapper *    )

virtual

This causes the actor to be rendered. It, in turn, will render the actor's property and then mapper.

Reimplemented from vtkActor.

int vtkLODActor::RenderOpaqueGeometry ( vtkViewport *  viewport )

virtual

This method is used internally by the rendering process. We overide the superclass method to properly set the estimated render time.

Reimplemented from vtkActor.

void vtkLODActor::ReleaseGraphicsResources ( vtkWindow *  )

virtual

Release any graphics resources that are being consumed by this actor. The parameter window could be used to determine which graphic resources to release.

Reimplemented from vtkActor.

void vtkLODActor::AddLODMapper

(

vtkMapper *

mapper

)

Add another level of detail. They do not have to be in any order of complexity.

virtual void vtkLODActor::SetLowResFilter ( vtkPolyDataAlgorithm *  )

virtual

You may plug in your own filters to decimate/subsample the input. The default is to use a vtkOutlineFilter (low-res) and vtkMaskPoints (medium-res).

virtual void vtkLODActor::SetMediumResFilter ( vtkPolyDataAlgorithm *  )

virtual

You may plug in your own filters to decimate/subsample the input. The default is to use a vtkOutlineFilter (low-res) and vtkMaskPoints (medium-res).

virtual vtkPolyDataAlgorithm* vtkLODActor::GetLowResFilter ( )

virtual

You may plug in your own filters to decimate/subsample the input. The default is to use a vtkOutlineFilter (low-res) and vtkMaskPoints (medium-res).

virtual vtkPolyDataAlgorithm* vtkLODActor::GetMediumResFilter ( )

virtual

You may plug in your own filters to decimate/subsample the input. The default is to use a vtkOutlineFilter (low-res) and vtkMaskPoints (medium-res).

virtual int vtkLODActor::GetNumberOfCloudPoints ( )

virtual

Set/Get the number of random points for the point cloud.

virtual void vtkLODActor::SetNumberOfCloudPoints ( int  )

virtual

Set/Get the number of random points for the point cloud.

virtual vtkMapperCollection* vtkLODActor::GetLODMappers ( )

virtual

All the mappers for different LODs are stored here. The order is not important.

void vtkLODActor::Modified ( )

virtual

When this objects gets modified, this method also modifies the object.

Reimplemented from vtkObject.

void vtkLODActor::ShallowCopy ( vtkProp *  prop )

virtual

Shallow copy of an LOD actor. Overloads the virtual vtkProp method.

Reimplemented from vtkActor.

virtual void vtkLODActor::CreateOwnLODs ( )

protectedvirtual

virtual void vtkLODActor::UpdateOwnLODs ( )

protectedvirtual

virtual void vtkLODActor::DeleteOwnLODs ( )

protectedvirtual

Member Data Documentation

vtkActor* vtkLODActor::Device

protected

Definition at line 136 of file vtkLODActor.h.

vtkMapperCollection* vtkLODActor::LODMappers

protected

Definition at line 137 of file vtkLODActor.h.

vtkPolyDataAlgorithm* vtkLODActor::LowResFilter

protected

Definition at line 141 of file vtkLODActor.h.

vtkPolyDataAlgorithm* vtkLODActor::MediumResFilter

protected

Definition at line 142 of file vtkLODActor.h.

vtkPolyDataMapper* vtkLODActor::LowMapper

protected

Definition at line 143 of file vtkLODActor.h.

vtkPolyDataMapper* vtkLODActor::MediumMapper

protected

Definition at line 144 of file vtkLODActor.h.

vtkTimeStamp vtkLODActor::BuildTime

protected

Definition at line 146 of file vtkLODActor.h.

int vtkLODActor::NumberOfCloudPoints

protected

Definition at line 147 of file vtkLODActor.h.

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

• dox/Rendering/LOD/vtkLODActor.h