osg::Point Class Reference

Point - encapsulates the OpenGL point smoothing and size state. More...

Inheritance diagram for osg::Point:

[legend]List of all members.


Public Member Functions
	Point ()
	Point (const Point &point, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	Copy constructor using CopyOp to manage deep vs shallow copy.
	META_StateAttribute (osg, Point, POINT)
virtual int	compare (const StateAttribute &sa) const
	return -1 if this < rhs, 0 if this==rhs, 1 if this>rhs.
virtual bool	getModeUsage (ModeUsage &usage) const
	Return the modes associated with this StateAttribute.
void	setSize (float size)
float	getSize () const
void	setFadeThresholdSize (float fadeThresholdSize)
float	getFadeThresholdSize () const
void	setDistanceAttenuation (const Vec3 &distanceAttenuation)
const Vec3 &	getDistanceAttenuation () const
void	setMinSize (float minSize)
float	getMinSize () const
void	setMaxSize (float maxSize)
float	getMaxSize () const
virtual void	apply (State &state) const
	apply the OpenGL state attributes.
Static Public Member Functions
Extensions *	getExtensions (unsigned int contextID, bool createIfNotInitalized)
	Returns the Extensions object for the given context.
void	setExtensions (unsigned int contextID, Extensions *extensions)
	setExtensions() allows users to override the extensions across graphics contexts.
Protected Member Functions
virtual	~Point ()
Protected Attributes
float	_size
float	_fadeThresholdSize
Vec3	_distanceAttenuation
float	_minSize
float	_maxSize

Detailed Description

Point - encapsulates the OpenGL point smoothing and size state.

Constructor & Destructor Documentation

osg::Point::Point ( )

osg::Point::Point ( const Point & point,

const CopyOp & copyop = CopyOp::SHALLOW_COPY

) [inline]

Copy constructor using CopyOp to manage deep vs shallow copy.

virtual osg::Point::~Point ( ) [protected, virtual]

Member Function Documentation

virtual void osg::Point::apply ( State & state ) const [virtual]

apply the OpenGL state attributes.
The global state for the current OpenGL context is passed in to allow the StateAttribute to obtain details on the the current context and state.
Implements osg::StateAttribute.

virtual int osg::Point::compare ( const StateAttribute & sa ) const [inline, virtual]

return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.

Implements osg::StateAttribute.

const Vec3& osg::Point::getDistanceAttenuation ( ) const [inline]

Extensions* osg::Point::getExtensions ( unsigned int contextID,

bool createIfNotInitalized

) [static]

Returns the Extensions object for the given context.
If createIfNotInitalized is true and the Exentsions object doesn't exist, getExtensions() creates it on the given context. Returns NULL if createIfNotInitalized is false and the Extensions object doesn't exist.

float osg::Point::getFadeThresholdSize ( ) const [inline]

float osg::Point::getMaxSize ( ) const [inline]

float osg::Point::getMinSize ( ) const [inline]

virtual bool osg::Point::getModeUsage ( ModeUsage & usage ) const [inline, virtual]

Return the modes associated with this StateAttribute.

Reimplemented from osg::StateAttribute.

float osg::Point::getSize ( ) const [inline]

osg::Point::META_StateAttribute ( osg ,

Point ,

POINT

)

void osg::Point::setDistanceAttenuation ( const Vec3 & distanceAttenuation )

void osg::Point::setExtensions ( unsigned int contextID,

Extensions * extensions

) [static]

setExtensions() allows users to override the extensions across graphics contexts.
Typically used when you have different extensions supported across graphics pipes, but need to ensure that they all use the same low common denominator extensions.