内容

• 特性
• 公共函数
• 公共槽
• 信号
• 保护函数
• 详细描述

QGeometry Class

( Qt3DRender::QGeometry )

封装几何体 更多...

头：	#include <QGeometry>
qmake:	QT += 3drender
Since:	Qt 5.7
实例化：	几何体
继承：	Qt3DCore::QNode
继承者：	Qt3DExtras::QConeGeometry , Qt3DExtras::QCuboidGeometry , Qt3DExtras::QCylinderGeometry , Qt3DExtras::QExtrudedTextGeometry , Qt3DExtras::QPlaneGeometry , Qt3DExtras::QSphereGeometry ，和 Qt3DExtras::QTorusGeometry

• 所有成员列表，包括继承成员

特性

• boundingVolumePositionAttribute : Qt3DRender::QAttribute *

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

公共函数

	QGeometry (Qt3DCore::QNode * parent = nullptr)
void	addAttribute (Qt3DRender::QAttribute * attribute )
QVector<QAttribute *>	attributes () const
QAttribute *	boundingVolumePositionAttribute () const
void	removeAttribute (Qt3DRender::QAttribute * attribute )

• 11 public functions inherited from Qt3DCore::QNode
• 32 公共函数继承自 QObject

公共槽

void	setBoundingVolumePositionAttribute (QAttribute * boundingVolumePositionAttribute )

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

信号

void	boundingVolumePositionAttributeChanged (QAttribute * boundingVolumePositionAttribute )

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

保护函数

QGeometry (QGeometryPrivate & 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

封装几何体

A Qt3DRender::QGeometry class is used to group a list of Qt3DRender::QAttribute objects together to form a geometric shape Qt3D is able to render using Qt3DRender::QGeometryRenderer . Special attribute can be set in order to calculate bounding volume of the shape.

特性文档编制

boundingVolumePositionAttribute : Qt3DRender::QAttribute *

Holds the attribute used to compute the bounding volume. The bounding volume is used internally for picking and view frustum culling.

If unspecified, the system will look for the attribute using the name returned by QAttribute::defaultPositionAttributeName .

访问函数：

QAttribute *	boundingVolumePositionAttribute () const
void	setBoundingVolumePositionAttribute (QAttribute * boundingVolumePositionAttribute )

通知程序信号：

void	boundingVolumePositionAttributeChanged (QAttribute * boundingVolumePositionAttribute )

另请参阅 Qt3DRender::QAttribute .

成员函数文档编制

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

Default constructs an instance of QGeometry.

[protected] QGeometry:: QGeometry ( QGeometryPrivate & dd , Qt3DCore::QNode * parent = nullptr)

Copy constructor.

void QGeometry:: addAttribute ( Qt3DRender::QAttribute * attribute )

添加 attribute to this geometry.

QVector < QAttribute *> QGeometry:: attributes () const

Returns the list of attributes in this geometry.

void QGeometry:: removeAttribute ( Qt3DRender::QAttribute * attribute )

移除给定 attribute from this geometry.