Unity3d quaternion properties and function test __unity3d

Quaternion Properties and methods

One, properties:

X, Y, z don't say, just look at a eulerangles, the code is as follows:
[CSharp]View plain copy public quaternion rotation = quaternion.identity;   void Start () {rotation.eulerangles = new Vector3 (0, 30, 0);   Transform.rotation = rotation;   Print (ROTATION.EULERANGLES.Y); Effect: Turn the object clockwise around the y axis, with the same effect as transform.eulerangles. Object rotation = (0,30,0). However, you cannot assign values directly to Transform.rotation.eulerAngle.


Second, the method

1,function Toangleaxis (out of Angle:float, out Axis:vector3): void
[CSharp]View plain copy public float angle = 0.0F;      Public Vector3 axis = Vector3.zero;   void Start () {transform.eulerangles = new Vector3 (0, 90, 0);   Transform.rotation.ToAngleAxis (out angle, out axis);   Print (angle + "" + axis); Effects: Returns the rotation of an object to the angles and axis (the angle between the object's Z-axis and the world's Z axis).
Input: transform.localeulerangles= (0,0,0);
Output: Angle=0, axis= (1,0,0);
Input: transform.localeulerangles= (0,90,0);
Output: angle=90,axis= (0,1,0);
Input: transform.localeulerangles= (270,0,0);
Output: angle=90,axis= ( -1,0,0)

2,function setfromtorotation (Fromdirection:vector3, Todirection:vector3): void
[CSharp]View plain copy private Vector3 _from = Vector3.one;   Private Vector3 _to = new Vector3 (100f, 200f, 100f);   Private quaternion q;      Private Vector3 Headupdir;   void Start () {q.setfromtorotation (_from, _to);   transform.rotation=q; Headupdir=transform.   Transformdirection (Vector3.forward); Effect: Rotate the fromdirection of the object to the Todirection
Input: A=vector3 (0,0,1); B=vector3 (0,1,0)//Z axis toward Y axis
Output: q= ( -0.7,0,0,0.7); Headupdir= (0,1,0)
Input: A=vector3 (0,0,1); B=vector3 (1,0,0)//Turn the z-axis toward the x-axis
Output: q= (0,0.7,0,0.7); Headupdir= (1,0,0)
Input: A=vector3 (0,1,0); B=vector3 (1,0,0)//Turn y axis toward X axis
Output: q= (0,0,-0.7,0.7); Headupdir= (0,0,1)

3,function setlookrotation (View:vector3, Up:vector3 = vector3.up): void
[CSharp]View plain copy public Transform obj1;   Public Transform Obj2;      quaternion q;   void Update () {q.setlookrotation (obj1.position, obj2.position);   transform.rotation = q; Effect: Similar to the LookAt () method so that object 1 always stares at object 2

4, static operator * (Lhs:quaternion, rhs:quaternion): quaternion
[CSharp]  View Plain Copy public transform extrarotation;