內容

• 特性
• 公共函數
• 公共槽
• 信號
• 保護函數
• 詳細描述

QGeometry Class

( Qt3DRender::QGeometry )

封裝幾何體 更多...

頭：	#include <QGeometry>
qmake:	QT += 3drender
Since:	Qt 5.7
實例化：	幾何體
繼承：	Qt3DCore::QNode
繼承者：	Qt3DExtras::QConeGeometry , Qt3DExtras::QCuboidGeometry , Qt3DExtras::QCylinderGeometry , Qt3DExtras::QExtrudedTextGeometry , Qt3DExtras::QPlaneGeometry , Qt3DExtras::QSphereGeometry ，和 Qt3DExtras::QTorusGeometry

• 所有成員列錶，包括繼承成員

特性

• boundingVolumePositionAttribute : Qt3DRender::QAttribute *

• 3 特性繼承自 Qt3DCore::QNode
• 1 特性繼承自 QObject

公共函數

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

• 11 公共函數繼承自 Qt3DCore::QNode
• 32 公共函數繼承自 QObject

公共槽

void	setBoundingVolumePositionAttribute (QAttribute * boundingVolumePositionAttribute )

• 3 公共槽繼承自 Qt3DCore::QNode
• 1 公共槽繼承自 QObject

信號

void	boundingVolumePositionAttributeChanged (QAttribute * boundingVolumePositionAttribute )

• 4 信號繼承自 Qt3DCore::QNode
• 2 信號繼承自 QObject

保護函數

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

• 2 保護函數繼承自 Qt3DCore::QNode
• 9 保護函數繼承自 QObject

額外繼承成員

• 11 靜態公共成員繼承自 QObject

詳細描述

封裝幾何體

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.

特性文檔編製

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 .

訪問函數：

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

通知程序信號：

void	boundingVolumePositionAttributeChanged (QAttribute * boundingVolumePositionAttribute )

另請參閱 Qt3DRender::QAttribute .

成員函數文檔編製

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 )

移除給定 attribute from this geometry.