QSortPolicy Class

Provides storage for the sort types to be used. 更多...

头：	#include <QSortPolicy>
qmake:	QT += 3drender
Since:	Qt 5.7
实例化：	SortPolicy
继承：	Qt3DRender::QFrameGraphNode

公共类型

enum	SortType { StateChangeCost, BackToFront, Material, FrontToBack }

特性

sortTypes : QVector<int>

3 特性继承自 Qt3DCore::QNode
1 特性继承自 QObject

公共函数

	QSortPolicy (Qt3DCore::QNode * parent = nullptr)
QVector<Qt3DRender::QSortPolicy::SortType>	sortTypes () const
QVector<int>	sortTypesInt () const

1 公共函数继承自 Qt3DRender::QFrameGraphNode
13 公共函数继承自 Qt3DCore::QNode
31 公共函数继承自 QObject

公共槽

void	setSortTypes (const QVector<Qt3DRender::QSortPolicy::SortType> & sortTypes )
void	setSortTypes (const QVector<int> & sortTypesInt )

3 公共槽继承自 Qt3DCore::QNode
1 公共槽继承自 QObject

信号

void	sortTypesChanged (const QVector<Qt3DRender::QSortPolicy::SortType> & sortTypes )
void	sortTypesChanged (const QVector<int> & sortTypes )

4 信号继承自 Qt3DCore::QNode
2 信号继承自 QObject

静态公共成员

const QMetaObject

staticMetaObject

9 静态公共成员继承自 QObject

额外继承成员

1 保护函数继承自 Qt3DRender::QFrameGraphNode
2 保护函数继承自 Qt3DCore::QNode
9 保护函数继承自 QObject

详细描述

Provides storage for the sort types to be used.

A Qt3DRender::QSortPolicy class stores the sorting type used by the FrameGraph. The sort types determine how drawable entities are sorted before drawing to determine the drawing order. When QSortPolicy is present in the FrameGraph, the sorting mechanism is determined by the sortTypes list. Multiple sort types can be used simultaneously. If QSortPolicy is not present in the FrameGraph, entities are drawn in the order they appear in the entity hierarchy.

成员类型文档编制

enum QSortPolicy:: SortType

This enum type describes the available sort types.

常量	值	描述
`Qt3DRender::QSortPolicy::StateChangeCost`	`(1 << 0)`	sort the objects so as to minimize the cost of changing from the currently rendered state
`Qt3DRender::QSortPolicy::BackToFront`	`(1 << 1)`	sort the objects from back to front based on inverted z order. More accurately, the sorting key is the z component of the projection of the camera-to-object-center vector onto the camera's view vector.
`Qt3DRender::QSortPolicy::Material`	`(1 << 2)`	sort the objects based on their material value
`Qt3DRender::QSortPolicy::FrontToBack`	`(1 << 3)`	sort the objects from front to back. The opposite of BackToFront.

特性文档编制

sortTypes : QVector < int >

Specifies the sorting types to be used.

访问函数：

QVector<int>	sortTypesInt () const
void	setSortTypes (const QVector<Qt3DRender::QSortPolicy::SortType> & sortTypes )
void	setSortTypes (const QVector<int> & sortTypesInt )

通知程序信号：

void	sortTypesChanged (const QVector<Qt3DRender::QSortPolicy::SortType> & sortTypes )
void	sortTypesChanged (const QVector<int> & sortTypes )

成员函数文档编制

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

Constructs QSortPolicy with given parent .

QVector < Qt3DRender::QSortPolicy::SortType > QSortPolicy:: sortTypes () const

Returns the current sort types in use

另请参阅 setSortTypes ().