內容

• 特性
• 公共函數
• 公共槽
• 信號
• 靜態公共成員
• 詳細描述

QScreenRayCaster Class

( Qt3DRender::QScreenRayCaster )

Performe ray casting test based on screen coordinates. 更多...

頭：	#include <QScreenRayCaster>
qmake:	QT += 3drender
Since:	Qt 5.11
實例化：	ScreenRayCaster
繼承：	Qt3DRender::QAbstractRayCaster

• 所有成員列錶，包括繼承成員
• 過時成員

特性

• position : QPoint

• 3 特性繼承自 Qt3DRender::QAbstractRayCaster
• 1 特性繼承自 Qt3DCore::QComponent
• 3 特性繼承自 Qt3DCore::QNode
• 1 特性繼承自 QObject

公共函數

	QScreenRayCaster (Qt3DCore::QNode * parent = nullptr)
QPoint	position () const

• 6 公共函數繼承自 Qt3DRender::QAbstractRayCaster
• 2 公共函數繼承自 Qt3DCore::QComponent
• 13 公共函數繼承自 Qt3DCore::QNode
• 31 公共函數繼承自 QObject

公共槽

void	setPosition (const QPoint & position )
void	trigger ()
void	trigger (const QPoint & position )

• 2 公共槽繼承自 Qt3DRender::QAbstractRayCaster
• 1 公共槽繼承自 Qt3DCore::QComponent
• 3 公共槽繼承自 Qt3DCore::QNode
• 1 公共槽繼承自 QObject

信號

void	positionChanged (const QPoint & position )

• 3 信號繼承自 Qt3DRender::QAbstractRayCaster
• 3 信號繼承自 Qt3DCore::QComponent
• 4 信號繼承自 Qt3DCore::QNode
• 2 信號繼承自 QObject

靜態公共成員

const QMetaObject

staticMetaObject

• 9 靜態公共成員繼承自 QObject

額外繼承成員

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

詳細描述

Performe ray casting test based on screen coordinates.

QScreenRayCaster can be used to perform ray casting tests by specifying coordinates in screen space, which will be used to construct an actual 3D ray between the near and far planes.

另請參閱 QRayCaster .

特性文檔編製

position : QPoint

Holds the screen space position used to compute the actual 3D ray for intersection tests.

Note: the coordinates will be used for every available render surface as long as they are in the valid range.

訪問函數：

QPoint	position () const
void	setPosition (const QPoint & position )

通知程序信號：

void	positionChanged (const QPoint & position )

成員函數文檔編製

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

Default constructs an instance of QScreenRayCaster.

[slot] void QScreenRayCaster:: trigger ()

Convenience method to enable the component and trigger tests using the current coordinate value.

[slot] void QScreenRayCaster:: trigger (const QPoint & position )

Convenience method to set the coordinate value position and enable the component to trigger tests.