//---------------------------------------------------------------------------
//
// <copyright file="QuaternionRotation3D.cs" company="Microsoft">
//    Copyright (c) Microsoft Corporation.  All rights reserved.
// </copyright>
//
// Description:  A rotation in 3-space defined by a Quaternion.
//              
// History:  
//  8/15/2005 : Microsoft - Created
//
//---------------------------------------------------------------------------
 
using System;
 
namespace System.Windows.Media.Media3D
{
    /// <summary>
    /// A rotation in 3-space defined by a Quaternion.
    /// </summary>
    public partial class QuaternionRotation3D
    {
        //------------------------------------------------------
        //
        //  Constructors
        //
        //------------------------------------------------------
 
        #region Constructors
 
        /// <summary>
        /// Default constructor that creates a rotation with Quaternion (0,0,0,1).
        /// </summary>
        public QuaternionRotation3D() {}
 
        /// <summary>
        /// Constructor taking a quaternion.
        /// </summary>
        public QuaternionRotation3D(Quaternion quaternion)
        {
            Quaternion = quaternion;
        }
 
        #endregion Constructors
 
        //------------------------------------------------------
        //
        //  Internal Properties
        //
        //------------------------------------------------------
 
        #region Internal Properties
        
        // Used by animation to get a snapshot of the current rotational
        // configuration for interpolation in Rotation3DAnimations.
        internal override Quaternion InternalQuaternion { get { return _cachedQuaternionValue; } }
 
        #endregion Internal Properties
    }
}