File: System\Windows\Media\Animation\Generated\SplineKeyFrames.cs
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Project: src\src\Microsoft.DotNet.Wpf\src\PresentationCore\PresentationCore.csproj (PresentationCore)
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
//
//
// This file was generated, please do not edit it directly.
//
// Please see MilCodeGen.html for more information.
//
 
using System.Windows.Media.Media3D;
 
using MS.Internal.PresentationCore;
 
namespace System.Windows.Media.Animation
{
    /// <summary>
    /// This class is used as part of a ByteKeyFrameCollection in
    /// conjunction with a KeyFrameByteAnimation to animate a
    /// Byte property value along a set of key frames.
    ///
    /// This ByteKeyFrame interpolates between the Byte Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplineByteKeyFrame : ByteKeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplineByteKeyFrame.
        /// </summary>
        public SplineByteKeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplineByteKeyFrame.
        /// </summary>
        public SplineByteKeyFrame(Byte value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplineByteKeyFrame.
        /// </summary>
        public SplineByteKeyFrame(Byte value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplineByteKeyFrame.
        /// </summary>
        public SplineByteKeyFrame(Byte value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplineByteKeyFrame();
        }
 
        #endregion
 
        #region ByteKeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Byte InterpolateValueCore(Byte baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolateByte(baseValue, Value, splineProgress);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplineByteKeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
 
 
 
    /// <summary>
    /// This class is used as part of a ColorKeyFrameCollection in
    /// conjunction with a KeyFrameColorAnimation to animate a
    /// Color property value along a set of key frames.
    ///
    /// This ColorKeyFrame interpolates between the Color Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplineColorKeyFrame : ColorKeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplineColorKeyFrame.
        /// </summary>
        public SplineColorKeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplineColorKeyFrame.
        /// </summary>
        public SplineColorKeyFrame(Color value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplineColorKeyFrame.
        /// </summary>
        public SplineColorKeyFrame(Color value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplineColorKeyFrame.
        /// </summary>
        public SplineColorKeyFrame(Color value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplineColorKeyFrame();
        }
 
        #endregion
 
        #region ColorKeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Color InterpolateValueCore(Color baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolateColor(baseValue, Value, splineProgress);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplineColorKeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
 
 
 
    /// <summary>
    /// This class is used as part of a DecimalKeyFrameCollection in
    /// conjunction with a KeyFrameDecimalAnimation to animate a
    /// Decimal property value along a set of key frames.
    ///
    /// This DecimalKeyFrame interpolates between the Decimal Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplineDecimalKeyFrame : DecimalKeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplineDecimalKeyFrame.
        /// </summary>
        public SplineDecimalKeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplineDecimalKeyFrame.
        /// </summary>
        public SplineDecimalKeyFrame(Decimal value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplineDecimalKeyFrame.
        /// </summary>
        public SplineDecimalKeyFrame(Decimal value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplineDecimalKeyFrame.
        /// </summary>
        public SplineDecimalKeyFrame(Decimal value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplineDecimalKeyFrame();
        }
 
        #endregion
 
        #region DecimalKeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Decimal InterpolateValueCore(Decimal baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolateDecimal(baseValue, Value, splineProgress);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplineDecimalKeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
 
 
 
    /// <summary>
    /// This class is used as part of a DoubleKeyFrameCollection in
    /// conjunction with a KeyFrameDoubleAnimation to animate a
    /// Double property value along a set of key frames.
    ///
    /// This DoubleKeyFrame interpolates between the Double Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplineDoubleKeyFrame : DoubleKeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplineDoubleKeyFrame.
        /// </summary>
        public SplineDoubleKeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplineDoubleKeyFrame.
        /// </summary>
        public SplineDoubleKeyFrame(Double value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplineDoubleKeyFrame.
        /// </summary>
        public SplineDoubleKeyFrame(Double value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplineDoubleKeyFrame.
        /// </summary>
        public SplineDoubleKeyFrame(Double value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplineDoubleKeyFrame();
        }
 
        #endregion
 
        #region DoubleKeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Double InterpolateValueCore(Double baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolateDouble(baseValue, Value, splineProgress);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplineDoubleKeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
 
 
 
    /// <summary>
    /// This class is used as part of a Int16KeyFrameCollection in
    /// conjunction with a KeyFrameInt16Animation to animate a
    /// Int16 property value along a set of key frames.
    ///
    /// This Int16KeyFrame interpolates between the Int16 Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplineInt16KeyFrame : Int16KeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplineInt16KeyFrame.
        /// </summary>
        public SplineInt16KeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplineInt16KeyFrame.
        /// </summary>
        public SplineInt16KeyFrame(Int16 value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplineInt16KeyFrame.
        /// </summary>
        public SplineInt16KeyFrame(Int16 value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplineInt16KeyFrame.
        /// </summary>
        public SplineInt16KeyFrame(Int16 value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplineInt16KeyFrame();
        }
 
        #endregion
 
        #region Int16KeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Int16 InterpolateValueCore(Int16 baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolateInt16(baseValue, Value, splineProgress);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplineInt16KeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
 
 
 
    /// <summary>
    /// This class is used as part of a Int32KeyFrameCollection in
    /// conjunction with a KeyFrameInt32Animation to animate a
    /// Int32 property value along a set of key frames.
    ///
    /// This Int32KeyFrame interpolates between the Int32 Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplineInt32KeyFrame : Int32KeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplineInt32KeyFrame.
        /// </summary>
        public SplineInt32KeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplineInt32KeyFrame.
        /// </summary>
        public SplineInt32KeyFrame(Int32 value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplineInt32KeyFrame.
        /// </summary>
        public SplineInt32KeyFrame(Int32 value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplineInt32KeyFrame.
        /// </summary>
        public SplineInt32KeyFrame(Int32 value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplineInt32KeyFrame();
        }
 
        #endregion
 
        #region Int32KeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Int32 InterpolateValueCore(Int32 baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolateInt32(baseValue, Value, splineProgress);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplineInt32KeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
 
 
 
    /// <summary>
    /// This class is used as part of a Int64KeyFrameCollection in
    /// conjunction with a KeyFrameInt64Animation to animate a
    /// Int64 property value along a set of key frames.
    ///
    /// This Int64KeyFrame interpolates between the Int64 Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplineInt64KeyFrame : Int64KeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplineInt64KeyFrame.
        /// </summary>
        public SplineInt64KeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplineInt64KeyFrame.
        /// </summary>
        public SplineInt64KeyFrame(Int64 value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplineInt64KeyFrame.
        /// </summary>
        public SplineInt64KeyFrame(Int64 value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplineInt64KeyFrame.
        /// </summary>
        public SplineInt64KeyFrame(Int64 value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplineInt64KeyFrame();
        }
 
        #endregion
 
        #region Int64KeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Int64 InterpolateValueCore(Int64 baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolateInt64(baseValue, Value, splineProgress);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplineInt64KeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
 
 
 
    /// <summary>
    /// This class is used as part of a PointKeyFrameCollection in
    /// conjunction with a KeyFramePointAnimation to animate a
    /// Point property value along a set of key frames.
    ///
    /// This PointKeyFrame interpolates between the Point Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplinePointKeyFrame : PointKeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplinePointKeyFrame.
        /// </summary>
        public SplinePointKeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplinePointKeyFrame.
        /// </summary>
        public SplinePointKeyFrame(Point value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplinePointKeyFrame.
        /// </summary>
        public SplinePointKeyFrame(Point value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplinePointKeyFrame.
        /// </summary>
        public SplinePointKeyFrame(Point value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplinePointKeyFrame();
        }
 
        #endregion
 
        #region PointKeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Point InterpolateValueCore(Point baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolatePoint(baseValue, Value, splineProgress);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplinePointKeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
 
 
 
    /// <summary>
    /// This class is used as part of a Point3DKeyFrameCollection in
    /// conjunction with a KeyFramePoint3DAnimation to animate a
    /// Point3D property value along a set of key frames.
    ///
    /// This Point3DKeyFrame interpolates between the Point3D Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplinePoint3DKeyFrame : Point3DKeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplinePoint3DKeyFrame.
        /// </summary>
        public SplinePoint3DKeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplinePoint3DKeyFrame.
        /// </summary>
        public SplinePoint3DKeyFrame(Point3D value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplinePoint3DKeyFrame.
        /// </summary>
        public SplinePoint3DKeyFrame(Point3D value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplinePoint3DKeyFrame.
        /// </summary>
        public SplinePoint3DKeyFrame(Point3D value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplinePoint3DKeyFrame();
        }
 
        #endregion
 
        #region Point3DKeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Point3D InterpolateValueCore(Point3D baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolatePoint3D(baseValue, Value, splineProgress);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplinePoint3DKeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
 
 
 
    /// <summary>
    /// This class is used as part of a QuaternionKeyFrameCollection in
    /// conjunction with a KeyFrameQuaternionAnimation to animate a
    /// Quaternion property value along a set of key frames.
    ///
    /// This QuaternionKeyFrame interpolates between the Quaternion Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplineQuaternionKeyFrame : QuaternionKeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplineQuaternionKeyFrame.
        /// </summary>
        public SplineQuaternionKeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplineQuaternionKeyFrame.
        /// </summary>
        public SplineQuaternionKeyFrame(Quaternion value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplineQuaternionKeyFrame.
        /// </summary>
        public SplineQuaternionKeyFrame(Quaternion value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplineQuaternionKeyFrame.
        /// </summary>
        public SplineQuaternionKeyFrame(Quaternion value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplineQuaternionKeyFrame();
        }
 
        #endregion
 
        #region QuaternionKeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Quaternion InterpolateValueCore(Quaternion baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolateQuaternion(baseValue, Value, splineProgress, UseShortestPath);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplineQuaternionKeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
 
 
 
    /// <summary>
    /// This class is used as part of a Rotation3DKeyFrameCollection in
    /// conjunction with a KeyFrameRotation3DAnimation to animate a
    /// Rotation3D property value along a set of key frames.
    ///
    /// This Rotation3DKeyFrame interpolates between the Rotation3D Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplineRotation3DKeyFrame : Rotation3DKeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplineRotation3DKeyFrame.
        /// </summary>
        public SplineRotation3DKeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplineRotation3DKeyFrame.
        /// </summary>
        public SplineRotation3DKeyFrame(Rotation3D value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplineRotation3DKeyFrame.
        /// </summary>
        public SplineRotation3DKeyFrame(Rotation3D value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplineRotation3DKeyFrame.
        /// </summary>
        public SplineRotation3DKeyFrame(Rotation3D value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplineRotation3DKeyFrame();
        }
 
        #endregion
 
        #region Rotation3DKeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Rotation3D InterpolateValueCore(Rotation3D baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolateRotation3D(baseValue, Value, splineProgress);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplineRotation3DKeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
 
 
 
    /// <summary>
    /// This class is used as part of a RectKeyFrameCollection in
    /// conjunction with a KeyFrameRectAnimation to animate a
    /// Rect property value along a set of key frames.
    ///
    /// This RectKeyFrame interpolates between the Rect Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplineRectKeyFrame : RectKeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplineRectKeyFrame.
        /// </summary>
        public SplineRectKeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplineRectKeyFrame.
        /// </summary>
        public SplineRectKeyFrame(Rect value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplineRectKeyFrame.
        /// </summary>
        public SplineRectKeyFrame(Rect value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplineRectKeyFrame.
        /// </summary>
        public SplineRectKeyFrame(Rect value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplineRectKeyFrame();
        }
 
        #endregion
 
        #region RectKeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Rect InterpolateValueCore(Rect baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolateRect(baseValue, Value, splineProgress);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplineRectKeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
 
 
 
    /// <summary>
    /// This class is used as part of a SingleKeyFrameCollection in
    /// conjunction with a KeyFrameSingleAnimation to animate a
    /// Single property value along a set of key frames.
    ///
    /// This SingleKeyFrame interpolates between the Single Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplineSingleKeyFrame : SingleKeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplineSingleKeyFrame.
        /// </summary>
        public SplineSingleKeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplineSingleKeyFrame.
        /// </summary>
        public SplineSingleKeyFrame(Single value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplineSingleKeyFrame.
        /// </summary>
        public SplineSingleKeyFrame(Single value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplineSingleKeyFrame.
        /// </summary>
        public SplineSingleKeyFrame(Single value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplineSingleKeyFrame();
        }
 
        #endregion
 
        #region SingleKeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Single InterpolateValueCore(Single baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolateSingle(baseValue, Value, splineProgress);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplineSingleKeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
 
 
 
    /// <summary>
    /// This class is used as part of a SizeKeyFrameCollection in
    /// conjunction with a KeyFrameSizeAnimation to animate a
    /// Size property value along a set of key frames.
    ///
    /// This SizeKeyFrame interpolates between the Size Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplineSizeKeyFrame : SizeKeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplineSizeKeyFrame.
        /// </summary>
        public SplineSizeKeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplineSizeKeyFrame.
        /// </summary>
        public SplineSizeKeyFrame(Size value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplineSizeKeyFrame.
        /// </summary>
        public SplineSizeKeyFrame(Size value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplineSizeKeyFrame.
        /// </summary>
        public SplineSizeKeyFrame(Size value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplineSizeKeyFrame();
        }
 
        #endregion
 
        #region SizeKeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Size InterpolateValueCore(Size baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolateSize(baseValue, Value, splineProgress);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplineSizeKeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
 
 
 
    /// <summary>
    /// This class is used as part of a VectorKeyFrameCollection in
    /// conjunction with a KeyFrameVectorAnimation to animate a
    /// Vector property value along a set of key frames.
    ///
    /// This VectorKeyFrame interpolates between the Vector Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplineVectorKeyFrame : VectorKeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplineVectorKeyFrame.
        /// </summary>
        public SplineVectorKeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplineVectorKeyFrame.
        /// </summary>
        public SplineVectorKeyFrame(Vector value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplineVectorKeyFrame.
        /// </summary>
        public SplineVectorKeyFrame(Vector value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplineVectorKeyFrame.
        /// </summary>
        public SplineVectorKeyFrame(Vector value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplineVectorKeyFrame();
        }
 
        #endregion
 
        #region VectorKeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Vector InterpolateValueCore(Vector baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolateVector(baseValue, Value, splineProgress);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplineVectorKeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
 
 
 
    /// <summary>
    /// This class is used as part of a Vector3DKeyFrameCollection in
    /// conjunction with a KeyFrameVector3DAnimation to animate a
    /// Vector3D property value along a set of key frames.
    ///
    /// This Vector3DKeyFrame interpolates between the Vector3D Value of
    /// the previous key frame and its own Value to produce its output value.
    /// </summary>
    public partial class SplineVector3DKeyFrame : Vector3DKeyFrame
    {
        #region Constructors
 
        /// <summary>
        /// Creates a new SplineVector3DKeyFrame.
        /// </summary>
        public SplineVector3DKeyFrame()
            : base()
        {
        }
 
        /// <summary>
        /// Creates a new SplineVector3DKeyFrame.
        /// </summary>
        public SplineVector3DKeyFrame(Vector3D value)
            : this()
        {
            Value = value;
        }
 
        /// <summary>
        /// Creates a new SplineVector3DKeyFrame.
        /// </summary>
        public SplineVector3DKeyFrame(Vector3D value, KeyTime keyTime)
            : this()
        {
            Value = value;
            KeyTime = keyTime;
        }
 
        /// <summary>
        /// Creates a new SplineVector3DKeyFrame.
        /// </summary>
        public SplineVector3DKeyFrame(Vector3D value, KeyTime keyTime, KeySpline keySpline)
            : this()
        {
            ArgumentNullException.ThrowIfNull(keySpline);
 
            Value = value;
            KeyTime = keyTime;
            KeySpline = keySpline;
        }
 
        #endregion
 
        #region Freezable
 
        /// <summary>
        /// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
        /// </summary>
        /// <returns>The new Freezable.</returns>
        protected override Freezable CreateInstanceCore()
        {
            return new  SplineVector3DKeyFrame();
        }
 
        #endregion
 
        #region Vector3DKeyFrame
 
        /// <summary>
        /// Implemented to linearly interpolate between the baseValue and the
        /// Value of this KeyFrame using the keyFrameProgress.
        /// </summary>
        protected override Vector3D InterpolateValueCore(Vector3D baseValue, double keyFrameProgress)
        {
            if (keyFrameProgress == 0.0)
            {
                return baseValue;
            }
            else if (keyFrameProgress == 1.0)
            {
                return Value;
            }
            else
            {
                double splineProgress = KeySpline.GetSplineProgress(keyFrameProgress);
 
                return AnimatedTypeHelpers.InterpolateVector3D(baseValue, Value, splineProgress);
            }
        }
 
        #endregion
 
        #region Public Properties
 
        /// <summary>
        /// KeySpline Property
        /// </summary>
        public static readonly DependencyProperty KeySplineProperty =
            DependencyProperty.Register(
                "KeySpline",
                typeof(KeySpline),
                typeof(SplineVector3DKeyFrame),
                new PropertyMetadata(new KeySpline()));
 
        /// <summary>
        /// The KeySpline defines the way that progress will be altered for this
        /// key frame.
        /// </summary>
        public KeySpline KeySpline
        {
            get
            {
                return (KeySpline)GetValue(KeySplineProperty);
            }
            set
            {
                ArgumentNullException.ThrowIfNull(value);
                SetValue(KeySplineProperty, value);
            }
        }
 
        #endregion
    }
}