QAspectEngine Class

class Qt3DCore ::QAspectEngine

Responsible for handling all the QAbstractAspect subclasses that have been registered with the scene. 更多...

头：	#include <Qt3DCore/QAspectEngine>
CMake:	find_package(Qt6 REQUIRED COMPONENTS 3DCore) target_link_libraries(mytarget PRIVATE Qt6::3DCore)
qmake:	QT += 3dcore
继承：	QObject

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公共函数

	QAspectEngine (QObject * parent = nullptr)
virtual	~QAspectEngine ()
Qt3DCore::QAbstractAspect *	aspect (const QString & name ) const
QList<Qt3DCore::QAbstractAspect *>	aspects () const
QVariant	executeCommand (const QString & 命令 )
void	processFrame ()
void	registerAspect (Qt3DCore::QAbstractAspect * aspect )
void	registerAspect (const QString & name )
Qt3DCore::QEntityPtr	rootEntity () const
void	setRootEntity (Qt3DCore::QEntityPtr root )
void	unregisterAspect (Qt3DCore::QAbstractAspect * aspect )
void	unregisterAspect (const QString & name )

相关非成员

QEntityPtr

详细描述

The Qt3D run loop is controlled by the Qt3DRender::QAspectEngine.

Qt3DCore::QAbstractAspect subclasses can be registered by calling Qt3DCore::QAspectEngine::registerAspect() which will take care of registering the aspect and in turn that will call Qt3DCore::QAbstractAspect::onRegistered();

The simulation loop is launched as soon as a root Qt3DCore::QEntity is set on the Qt3DCore::QAspectEngine . This is followed by a call to onEngineStartup() on each aspect so that they can start their simulation work.

The simulation loop is stopped when the root entity is set to Qt3DCore::QEntityPtr(). This calls onEngineShutdown() on each aspect so that they can stop performing their simulation work.

Setting a new valid root entity would restart the simulation loop again.

成员函数文档编制

[explicit] QAspectEngine:: QAspectEngine ( QObject * parent = nullptr)

Constructs a new QAspectEngine with parent .

[virtual noexcept] QAspectEngine:: ~QAspectEngine ()

Destroys the engine.

Qt3DCore::QAbstractAspect *QAspectEngine:: aspect (const QString & name ) const

Returns the asepect matching the name

注意： Required that the aspect was registered by name

QList < Qt3DCore::QAbstractAspect *> QAspectEngine:: aspects () const

Returns the aspects owned by the aspect engine.

QVariant QAspectEngine:: executeCommand (const QString & 命令 )

Executes the given 命令 on aspect engine. Valid commands are:

• "list aspects"

Returns the reply for the command.

void QAspectEngine:: processFrame ()

If using the manual run mode, this function executes the jobs for each aspect. It is blocking and won't return until all jobs have been completed.

If you are using the QRenderAspect,

void QAspectEngine:: registerAspect ( Qt3DCore::QAbstractAspect * aspect )

Registers a new aspect to the AspectManager. The QAspectEngine takes ownership of the aspect and will delete it when the aspect is unregistered.

void QAspectEngine:: registerAspect (const QString & name )

Registers a new aspect to the AspectManager based on its name Uses the currently set aspect factory to create the actual aspect instance.

Qt3DCore::QEntityPtr QAspectEngine:: rootEntity () const

Returns the root entity of the aspect engine.

另请参阅 setRootEntity ().

void QAspectEngine:: setRootEntity ( Qt3DCore::QEntityPtr root )

设置 root entity for the aspect engine.

另请参阅 rootEntity ().

void QAspectEngine:: unregisterAspect ( Qt3DCore::QAbstractAspect * aspect )

Unregisters and deletes the given aspect .

void QAspectEngine:: unregisterAspect (const QString & name )

Unregisters and deletes the aspect with the given name .

相关非成员

QEntityPtr

共享指针为 QEntity .

内容

• 公共函数

• 相关非成员

• 详细描述