Handles.RotationHandle 旋转控制柄

static function RotationHandle (rotation : Quaternion, position : Vector3) : Quaternion

Parameters参数

• rotation
  Orientation of the handle // 控制柄的方向
• position
  Center of the handle in 3D space
  在3D空间，控制柄的中心

Quaternion - the modified rotation Note: Use HandleUtility.GetHandleSize where you might want to have constant screen-sized handles.

返回四元数，修改的旋转。注意：使用Use HandleUtility.GetHandleSize你可能希望有恒定屏幕大小的控制柄。

Description描述

Make a Scene view rotation handle.

创建一个场景视图旋转控制柄。

This will behave like the built-in rotation tool in Unity. If you have assigned something to Undo.SetSnapshotInfo, it will work fully with Undo.

这行为向Unity的内置旋转工具。如果你已经指定东西到Undo.SetSnapshotInfo，它将可完全撤销。

Rotate the attached object from the Rotation Handle.
从旋转控制柄旋转附加的物体。

//Create a rotation handle at (0,0,0) and rotate any object that has "RotateAtPoint.js"
// attached from 0,0,0.
//在(0,0,0) 创建旋转控制柄，并旋转从0,0,0附加的带有RotateAtPoint.js的任意物体

@CustomEditor (RotateAtPoint)
class RotationHandleJS extends Editor {
	function OnSceneGUI () {
		target.rot = Handles.RotationHandle (target.rot, Vector3.zero);
		if (GUI.changed)
			EditorUtility.SetDirty (target);
	}
} 

And the Script attached to this handle:

该脚本附加到这个控制柄物体：

// RotateAtPoint.js
// This Script has to be outside of the editor folder.
//这个脚本在编辑器文件夹之外
// Usage: Just Place this script on the object you want to work the handle with.
// And control the Object's rotation from the handle that appears at 0,0,0 when
// This object is selected.
//用法：放置这个脚本到你想控制柄工作的物体，并当物体被选择，从控制柄在0,0,0出现，控制物体的旋转
@script ExecuteInEditMode()
var rot : Quaternion = Quaternion.identity;

function Update () {
	transform.rotation = rot;
}