vtkFrustumCoverageCuller Class Reference

#include <vtkFrustumCoverageCuller.h>

Inheritance diagram for vtkFrustumCoverageCuller:

[legend]Collaboration diagram for vtkFrustumCoverageCuller:

[legend]List of all members.

Detailed Description

cull props based on frustum coverage

vtkFrustumCoverageCuller will cull props based on the coverage in the view frustum. The coverage is computed by enclosing the prop in a bounding sphere, projecting that to the viewing coordinate system, then taking a slice through the view frustum at the center of the sphere. This results in a circle on the plane slice through the view frustum. This circle is enclosed in a squared, and the fraction of the plane slice that this square covers is the coverage. This is a number between 0 and 1. If the number is less than the MinumumCoverage, the allocated render time for that prop is set to zero. If it is greater than the MaximumCoverage, the allocated render time is set to 1.0. In between, a linear ramp is used to convert coverage into allocated render time.

See also:: vtkCuller

Created by:

Avila, Lisa

CVS contributions (if > 5%):

Avila, Lisa (61%)
Biddiscombe, John (16%)
Martin, Ken (16%)

CVS logs (CVSweb):

.cxx (/Rendering/vtkFrustumCoverageCuller.cxx)
.h (/Rendering/vtkFrustumCoverageCuller.h)

Definition at line 58 of file vtkFrustumCoverageCuller.h.

Public Types

typedef vtkCuller Superclass

Public Member Functions

virtual const char * GetClassName ()

virtual int IsA (const char *type)

void PrintSelf (ostream &os, vtkIndent indent)

virtual void SetMinimumCoverage (double)

virtual double GetMinimumCoverage ()

virtual void SetMaximumCoverage (double)

virtual double GetMaximumCoverage ()

virtual void SetSortingStyle (int)

virtual int GetSortingStyle ()

void SetSortingStyleToNone ()

void SetSortingStyleToBackToFront ()

void SetSortingStyleToFrontToBack ()

const char * GetSortingStyleAsString (void)

double Cull (vtkRenderer *ren, vtkProp **propList, int &listLength, int &initialized)

Static Public Member Functions

vtkFrustumCoverageCuller * New ()

int IsTypeOf (const char *type)

vtkFrustumCoverageCuller * SafeDownCast (vtkObject *o)

Protected Member Functions

vtkFrustumCoverageCuller ()

~vtkFrustumCoverageCuller ()

Protected Attributes

double MinimumCoverage

double MaximumCoverage

int SortingStyle

Member Typedef Documentation

typedef vtkCuller vtkFrustumCoverageCuller::Superclass

Reimplemented from vtkCuller.
Definition at line 62 of file vtkFrustumCoverageCuller.h.

Constructor & Destructor Documentation

vtkFrustumCoverageCuller::vtkFrustumCoverageCuller ( ) [protected]

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

Definition at line 107 of file vtkFrustumCoverageCuller.h.

Member Function Documentation

vtkFrustumCoverageCuller* vtkFrustumCoverageCuller::New ( ) [static]

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

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

Reimplemented from vtkCuller.

int vtkFrustumCoverageCuller::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 vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtkCuller.

virtual int vtkFrustumCoverageCuller::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 vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtkCuller.

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

Reimplemented from vtkCuller.

void vtkFrustumCoverageCuller::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 vtkCuller.

virtual void vtkFrustumCoverageCuller::SetMinimumCoverage ( double ) [virtual]

Set/Get the minimum coverage - props with less coverage than this are given no time to render (they are culled)

virtual double vtkFrustumCoverageCuller::GetMinimumCoverage ( ) [virtual]

Set/Get the minimum coverage - props with less coverage than this are given no time to render (they are culled)

virtual void vtkFrustumCoverageCuller::SetMaximumCoverage ( double ) [virtual]

Set/Get the maximum coverage - props with more coverage than this are given an allocated render time of 1.0 (the maximum)

virtual double vtkFrustumCoverageCuller::GetMaximumCoverage ( ) [virtual]

Set/Get the maximum coverage - props with more coverage than this are given an allocated render time of 1.0 (the maximum)

virtual void vtkFrustumCoverageCuller::SetSortingStyle ( int ) [virtual]

Set the sorting style - none, front-to-back or back-to-front The default is none

virtual int vtkFrustumCoverageCuller::GetSortingStyle ( ) [virtual]

Set the sorting style - none, front-to-back or back-to-front The default is none

void vtkFrustumCoverageCuller::SetSortingStyleToNone ( ) [inline]

Set the sorting style - none, front-to-back or back-to-front The default is none
Definition at line 85 of file vtkFrustumCoverageCuller.h.
References VTK_CULLER_SORT_NONE.

void vtkFrustumCoverageCuller::SetSortingStyleToBackToFront ( ) [inline]

Set the sorting style - none, front-to-back or back-to-front The default is none
Definition at line 87 of file vtkFrustumCoverageCuller.h.
References VTK_CULLER_SORT_BACK_TO_FRONT.

void vtkFrustumCoverageCuller::SetSortingStyleToFrontToBack ( ) [inline]

Set the sorting style - none, front-to-back or back-to-front The default is none
Definition at line 89 of file vtkFrustumCoverageCuller.h.
References VTK_CULLER_SORT_FRONT_TO_BACK.

const char* vtkFrustumCoverageCuller::GetSortingStyleAsString ( void )

Set the sorting style - none, front-to-back or back-to-front The default is none

double vtkFrustumCoverageCuller::Cull ( vtkRenderer * ren,

vtkProp ** propList,

int & listLength,

int & initialized

) [virtual]

WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE DO NOT USE THESE METHODS OUTSIDE OF THE RENDERING PROCESS Perform the cull operation This method should only be called by vtkRenderer as part of the render process
Implements vtkCuller.

Member Data Documentation

double vtkFrustumCoverageCuller::MinimumCoverage [protected]

Definition at line 109 of file vtkFrustumCoverageCuller.h.

double vtkFrustumCoverageCuller::MaximumCoverage [protected]

Definition at line 110 of file vtkFrustumCoverageCuller.h.

int vtkFrustumCoverageCuller::SortingStyle [protected]

Definition at line 111 of file vtkFrustumCoverageCuller.h.

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

dox/Rendering/vtkFrustumCoverageCuller.h


Public Types
typedef vtkCuller	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)

virtual void	SetMinimumCoverage (double)
virtual double	GetMinimumCoverage ()

virtual void	SetMaximumCoverage (double)
virtual double	GetMaximumCoverage ()

virtual void	SetSortingStyle (int)
virtual int	GetSortingStyle ()
void	SetSortingStyleToNone ()
void	SetSortingStyleToBackToFront ()
void	SetSortingStyleToFrontToBack ()
const char *	GetSortingStyleAsString (void)

double	Cull (vtkRenderer ren, vtkProp *propList, int &listLength, int &initialized)
Static Public Member Functions
vtkFrustumCoverageCuller *	New ()
int	IsTypeOf (const char *type)
vtkFrustumCoverageCuller *	SafeDownCast (vtkObject *o)
Protected Member Functions
	vtkFrustumCoverageCuller ()
	~vtkFrustumCoverageCuller ()
Protected Attributes
double	MinimumCoverage
double	MaximumCoverage
int	SortingStyle