内容

• 特性
• 公共函数
• 公共槽
• 信号
• 详细描述

QJoint Class

class Qt3DCore ::QJoint

Used to transforms parts of skinned meshes. 更多...

头：	#include <QJoint>
qmake:	QT += 3dcore
Since:	Qt 5.10
实例化：	Joint
继承：	Qt3DCore::QNode

该类在 Qt 5.10 引入。

• 所有成员列表，包括继承成员

特性

inverseBindMatrix : QMatrix4x4 rotation : QQuaternion rotationX : float rotationY : float

rotationZ : float scale : QVector3D translation : QVector3D

公共函数

	QJoint (Qt3DCore::QNode * parent = nullptr)
void	addChildJoint (Qt3DCore::QJoint * joint )
QVector<Qt3DCore::QJoint *>	childJoints () const
QMatrix4x4	inverseBindMatrix () const
QString	name () const
void	removeChildJoint (Qt3DCore::QJoint * joint )
QQuaternion	rotation () const
float	rotationX () const
float	rotationY () const
float	rotationZ () const
QVector3D	scale () const
QVector3D	translation () const

公共槽

void	setInverseBindMatrix (const QMatrix4x4 & inverseBindMatrix )
void	setName (const QString & name )
void	setRotation (const QQuaternion & rotation )
void	setRotationX (float rotationX )
void	setRotationY (float rotationY )
void	setRotationZ (float rotationZ )
void	setScale (const QVector3D & scale )
void	setToIdentity ()
void	setTranslation (const QVector3D & translation )

信号

void	inverseBindMatrixChanged (const QMatrix4x4 & inverseBindMatrix )
void	nameChanged (const QString & name )
void	rotationChanged (const QQuaternion & rotation )
void	rotationXChanged (float rotationX )
void	rotationYChanged (float rotationY )
void	rotationZChanged (float rotationZ )
void	scaleChanged (const QVector3D & scale )
void	translationChanged (const QVector3D & translation )

详细描述

The QJoint node is used to build skeletons as part of the skinned mesh support in Qt 3D. A joint can be transformed by way of its scale, rotation and translation properties. Any mesh vertices that are bound to the joint will have their transformations updated accordingly.

特性文档编制

inverseBindMatrix : QMatrix4x4

Holds the inverse bind matrix of the joint. This is used to transform vertices from model space into the space of this joint so they can subsequently be multiplied by the joint's global transform to perform the skinning operation.

访问函数：

QMatrix4x4	inverseBindMatrix () const
void	setInverseBindMatrix (const QMatrix4x4 & inverseBindMatrix )

通知程序信号：

void	inverseBindMatrixChanged (const QMatrix4x4 & inverseBindMatrix )

rotation : QQuaternion

Holds the rotation of the joint as QQuaternion .

访问函数：

QQuaternion	rotation () const
void	setRotation (const QQuaternion & rotation )

通知程序信号：

void	rotationChanged (const QQuaternion & rotation )

rotationX : float

Holds the x rotation of the joint as an Euler angle.

访问函数：

float	rotationX () const
void	setRotationX (float rotationX )

通知程序信号：

void	rotationXChanged (float rotationX )

rotationY : float

Holds the y rotation of the joint as an Euler angle.

访问函数：

float	rotationY () const
void	setRotationY (float rotationY )

通知程序信号：

void	rotationYChanged (float rotationY )

rotationZ : float

Holds the z rotation of the joint as an Euler angle.

访问函数：

float	rotationZ () const
void	setRotationZ (float rotationZ )

通知程序信号：

void	rotationZChanged (float rotationZ )

scale : QVector3D

Holds the scale of the joint.

访问函数：

QVector3D	scale () const
void	setScale (const QVector3D & scale )

通知程序信号：

void	scaleChanged (const QVector3D & scale )

translation : QVector3D

Holds the translation of the joint as QVector3D .

访问函数：

QVector3D	translation () const
void	setTranslation (const QVector3D & translation )

通知程序信号：

void	translationChanged (const QVector3D & translation )

成员函数文档编制

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

Constructs a new QJoint with parent .

[slot] void QJoint:: setToIdentity ()

Sets the transform matrix for this joint to the identity matrix.

void QJoint:: addChildJoint ( Qt3DCore::QJoint * joint )

添加 joint as a child of this joint. If joint has no parent, then this joint takes ownership of it. Child joints are in the coordinate system of their parent joint.

QVector < Qt3DCore::QJoint *> QJoint:: childJoints () const

The vector of joints this joint has as children.

QString QJoint:: name () const

Returns the name of the joint.

注意： Getter function for property name.

另请参阅 setName ().

void QJoint:: removeChildJoint ( Qt3DCore::QJoint * joint )

移除 joint from this joint's list of children. The child joint is not destroyed.