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//---------------------------------------------------------------------------
//
// <copyright file="Rotate3DTransform.cs" company="Microsoft">
// Copyright (C) Microsoft Corporation. All rights reserved.
// </copyright>
//
//
// Description: 3D rotate transforms.
//
// See spec at http://avalon/medialayer/Specifications/Avalon3D%20API%20Spec.mht
//
// History:
// 06/04/2003 : t-gregr - Created
//
//---------------------------------------------------------------------------
using System;
using System.ComponentModel;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Composition;
using MS.Internal;
using System.ComponentModel.Design.Serialization;
using System.Windows.Markup;
namespace System.Windows.Media.Media3D
{
/// <summary>
/// 3D rotate transforms.
/// </summary>
public sealed partial class RotateTransform3D : AffineTransform3D
{
//------------------------------------------------------
//
// Constructors
//
//------------------------------------------------------
#region Constructors
/// <summary>
/// Default constructor.
/// </summary>
public RotateTransform3D() {}
/// <summary>
/// Constructor from Rotation3D.
/// </summary>
/// <param name="rotation">Rotation3D.</param>
public RotateTransform3D(Rotation3D rotation)
{
Rotation = rotation;
}
/// <summary>
/// Constructor from Rotation3D and center point.
/// </summary>
/// <param name="rotation">Rotation3D.</param>
/// <param name="center">Center point.</param>
public RotateTransform3D(Rotation3D rotation, Point3D center)
{
Rotation = rotation;
CenterX = center.X;
CenterY = center.Y;
CenterZ = center.Z;
}
/// <summary>
/// Constructor from Rotation3D and center point.
/// </summary>
/// <param name="rotation">Rotation3D.</param>
/// <param name="centerX">X center</param>
/// <param name="centerY">Y center</param>
/// <param name="centerZ">Z center</param>
public RotateTransform3D(Rotation3D rotation, double centerX, double centerY, double centerZ)
{
Rotation = rotation;
CenterX = centerX;
CenterY = centerY;
CenterZ = centerZ;
}
#endregion Constructors
//------------------------------------------------------
//
// Public Methods
//
//------------------------------------------------------
//------------------------------------------------------
//
// Public Properties
//
//------------------------------------------------------
#region Public Properties
/// <summary>
/// Retrieves matrix representing the rotation.
/// </summary>
public override Matrix3D Value
{
get
{
ReadPreamble();
Rotation3D rotation = _cachedRotationValue;
if (rotation == null)
{
return Matrix3D.Identity;
}
Quaternion quaternion = rotation.InternalQuaternion;
Point3D center = new Point3D(_cachedCenterXValue, _cachedCenterYValue, _cachedCenterZValue);
return Matrix3D.CreateRotationMatrix(ref quaternion, ref center);
}
}
#endregion Public Properties
internal override void Append(ref Matrix3D matrix)
{
matrix = matrix * Value;
}
}
}
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