QJoint Class
class Qt3DCore::QJointUsed to transforms parts of skinned meshes. More...
| Header: | #include <QJoint> |
| qmake: | QT += 3dcore |
| Since: | Qt 5.10 |
| Instantiated By: | Joint |
| Inherits: | Qt3DCore::QNode |
This class was introduced in Qt 5.10.
Properties
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Public Functions
| 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 |
Public Slots
| 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) |
Signals
| 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) |
Detailed Description
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.
Property Documentation
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.
Access functions:
| QMatrix4x4 | inverseBindMatrix() const |
| void | setInverseBindMatrix(const QMatrix4x4 &inverseBindMatrix) |
Notifier signal:
| void | inverseBindMatrixChanged(const QMatrix4x4 &inverseBindMatrix) |
rotation : QQuaternion
Holds the rotation of the joint as QQuaternion.
Access functions:
| QQuaternion | rotation() const |
| void | setRotation(const QQuaternion &rotation) |
Notifier signal:
| void | rotationChanged(const QQuaternion &rotation) |
rotationX : float
Holds the x rotation of the joint as an Euler angle.
Access functions:
| float | rotationX() const |
| void | setRotationX(float rotationX) |
Notifier signal:
| void | rotationXChanged(float rotationX) |
rotationY : float
Holds the y rotation of the joint as an Euler angle.
Access functions:
| float | rotationY() const |
| void | setRotationY(float rotationY) |
Notifier signal:
| void | rotationYChanged(float rotationY) |
rotationZ : float
Holds the z rotation of the joint as an Euler angle.
Access functions:
| float | rotationZ() const |
| void | setRotationZ(float rotationZ) |
Notifier signal:
| void | rotationZChanged(float rotationZ) |
scale : QVector3D
Holds the scale of the joint.
Access functions:
| QVector3D | scale() const |
| void | setScale(const QVector3D &scale) |
Notifier signal:
| void | scaleChanged(const QVector3D &scale) |
translation : QVector3D
Holds the translation of the joint as QVector3D.
Access functions:
| QVector3D | translation() const |
| void | setTranslation(const QVector3D &translation) |
Notifier signal:
| void | translationChanged(const QVector3D &translation) |
Member Function Documentation
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)
Adds 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.
Note: Getter function for property name.
See also setName().
void QJoint::removeChildJoint(Qt3DCore::QJoint *joint)
Removes joint from this joint's list of children. The child joint is not destroyed.