内容

• 特性
• 公共函数
• 公共槽
• 信号
• 保护函数
• 详细描述

QSpotLight Class

( Qt3DRender::QSpotLight )

Encapsulate a Spot Light object in a Qt 3D scene. 更多...

头：	#include <QSpotLight>
qmake:	QT += 3drender
Since:	Qt 5.5
实例化：	SpotLight
继承：	Qt3DRender::QAbstractLight

• 所有成员列表，包括继承成员

特性

constantAttenuation : float cutOffAngle : float linearAttenuation : float

localDirection : QVector3D quadraticAttenuation : float

• 3 特性继承自 Qt3DRender::QAbstractLight
• 1 特性继承自 Qt3DCore::QComponent
• 3 特性继承自 Qt3DCore::QNode
• 1 特性继承自 QObject

公共函数

	QSpotLight (Qt3DCore::QNode * parent = nullptr)
QVector3D	attenuation () const
float	constantAttenuation () const
float	cutOffAngle () const
float	linearAttenuation () const
QVector3D	localDirection () const
float	quadraticAttenuation () const

• 3 公共函数继承自 Qt3DRender::QAbstractLight
• 2 公共函数继承自 Qt3DCore::QComponent
• 11 public functions inherited from Qt3DCore::QNode
• 32 公共函数继承自 QObject

公共槽

void	setConstantAttenuation (float value )
void	setCutOffAngle (float cutOffAngle )
void	setLinearAttenuation (float value )
void	setLocalDirection (const QVector3D & localDirection )
void	setQuadraticAttenuation (float value )

• 2 public slots inherited from Qt3DRender::QAbstractLight
• 1 公共槽继承自 Qt3DCore::QComponent
• 3 公共槽继承自 Qt3DCore::QNode
• 1 公共槽继承自 QObject

信号

void	constantAttenuationChanged (float constantAttenuation )
void	cutOffAngleChanged (float cutOffAngle )
void	linearAttenuationChanged (float linearAttenuation )
void	localDirectionChanged (const QVector3D & localDirection )
void	quadraticAttenuationChanged (float quadraticAttenuation )

• 2 信号继承自 Qt3DRender::QAbstractLight
• 3 信号继承自 Qt3DCore::QComponent
• 4 信号继承自 Qt3DCore::QNode
• 2 信号继承自 QObject

保护函数

QSpotLight (QSpotLightPrivate & dd , Qt3DCore::QNode * parent = nullptr)

• 2 protected functions inherited from Qt3DCore::QNode
• 9 保护函数继承自 QObject

额外继承成员

• 11 静态公共成员继承自 QObject

详细描述

Encapsulate a Spot Light object in a Qt 3D scene.

特性文档编制

constantAttenuation : float

Specifies the constant attenuation of the spot light

访问函数：

float	constantAttenuation () const
void	setConstantAttenuation (float value )

通知程序信号：

void	constantAttenuationChanged (float constantAttenuation )

cutOffAngle : float

Specifies the cut off angle of the spot light

访问函数：

float	cutOffAngle () const
void	setCutOffAngle (float cutOffAngle )

通知程序信号：

void	cutOffAngleChanged (float cutOffAngle )

linearAttenuation : float

Specifies the linear attenuation of the spot light

访问函数：

float	linearAttenuation () const
void	setLinearAttenuation (float value )

通知程序信号：

void	linearAttenuationChanged (float linearAttenuation )

localDirection : QVector3D

Specifies the local direction of the spot light

访问函数：

QVector3D	localDirection () const
void	setLocalDirection (const QVector3D & localDirection )

通知程序信号：

void	localDirectionChanged (const QVector3D & localDirection )

quadraticAttenuation : float

Specifies the quadratic attenuation of the spot light

访问函数：

float	quadraticAttenuation () const
void	setQuadraticAttenuation (float value )

通知程序信号：

void	quadraticAttenuationChanged (float quadraticAttenuation )

成员函数文档编制

QSpotLight:: QSpotLight ( Qt3DCore::QNode * parent = nullptr)

构造新的 QSpotLight 采用指定 parent .

[protected] QSpotLight:: QSpotLight ( QSpotLightPrivate & dd , Qt3DCore::QNode * parent = nullptr)

Copy constructor.

QVector3D QSpotLight:: attenuation () const

Returns the attenuation of the spot light.