Quaternion QML Type

Provides utility functions for quaternion. 更多...

import 语句：

import QtQuick3D

所有成员列表，包括继承成员

方法

quaternion fromAxesAndAngles (vector3d axis1 , real angle1 , vector3d axis2 , real angle2 )
quaternion fromAxesAndAngles (vector3d axis1 , real angle1 , vector3d axis2 , real angle2 , vector3d axis3 , real angle3 )
quaternion fromAxisAndAngle (vector3d axis , real angle )
quaternion fromAxisAndAngle (real x , real y , real z , real angle )
quaternion fromEulerAngles (vector3d eulerAngles )
quaternion fromEulerAngles (real x , real y , real z )
quaternion lookAt (vector3d sourcePosition , vector3d targetPosition , vector3d forwardDirection , vector3d upDirection )

详细描述

The Quaternion is a global object with utility functions.

它不可实例化；要使用它，调用成员来自全局 Quaternion 对象直接。例如：

Node {
    rotation: Quaternion.fromAxisAndAngle(Qt.vector3d(1, 0, 0), 45)
}

方法文档编制

quaternion fromAxesAndAngles ( vector3d axis1 , real angle1 , vector3d axis2 , real angle2 )

Creates a quaternion from axis1 , angle1 , axis2 ，和 angle2 . Returns the resulting quaternion.

quaternion fromAxesAndAngles ( vector3d axis1 , real angle1 , vector3d axis2 , real angle2 , vector3d axis3 , real angle3 )

Creates a quaternion from axis1 , angle1 , axis2 , angle2 , axis3 ，和 angle3 . Returns the resulting quaternion.

quaternion fromAxisAndAngle ( vector3d axis , real angle )

Creates a quaternion from axis and angle . Returns the resulting quaternion.

quaternion fromAxisAndAngle ( real x , real y , real z , real angle )

Creates a quaternion from x , y , z ，和 angle . Returns the resulting quaternion.

quaternion fromEulerAngles ( vector3d eulerAngles )

Creates a quaternion from eulerAngles . Returns the resulting quaternion.

quaternion fromEulerAngles ( real x , real y , real z )

Creates a quaternion from x , y ，和 z . Returns the resulting quaternion.

quaternion lookAt ( vector3d sourcePosition , vector3d targetPosition , vector3d forwardDirection , vector3d upDirection )

Creates a quaternion from sourcePosition , targetPosition , forwardDirection ，和 upDirection . This is used for getting a rotation value for pointing at a particular target, and can be used to point a camera at a position in a scene.

forwardDirection 默认为 Qt.vector3d(0, 0, -1) upDirection 默认为 Qt.vector3d(0, 1, 0)

Returns the resulting quaternion.