public class LinearMatrixAnimation : AnimationTimeline{public Matrix? From{set { SetValue(FromProperty, value); }get { return (Matrix)GetValue(FromProperty); }}public static DependencyProperty FromProperty = DependencyProperty.Register("From", typeof(Matrix?), typeof(LinearMatrixAnimation), new PropertyMetadata(null));public Matrix? To{set { SetValue(ToProperty, value); }get { return (Matrix)GetValue(ToProperty); }}public static DependencyProperty ToProperty = DependencyProperty.Register("To", typeof(Matrix?), typeof(LinearMatrixAnimation), new PropertyMetadata(null));public LinearMatrixAnimation(){}public LinearMatrixAnimation(Matrix from, Matrix to, Duration duration){Duration = duration;From = from;To = to;}public override object GetCurrentValue(object defaultOriginValue, object defaultDestinationValue, AnimationClock animationClock){if (animationClock.CurrentProgress == null){return null;}double progress = animationClock.CurrentProgress.Value;Matrix from = From ?? (Matrix)defaultOriginValue;if (To.HasValue){Matrix to = To.Value;Matrix newMatrix = new Matrix(((to.M11 - from.M11) * progress) + from.M11, 0, 0, ((to.M22 - from.M22) * progress) + from.M22,((to.OffsetX - from.OffsetX) * progress) + from.OffsetX, ((to.OffsetY - from.OffsetY) * progress) + from.OffsetY);return newMatrix;}return Matrix.Identity;}protected override System.Windows.Freezable CreateInstanceCore(){return new LinearMatrixAnimation();}public override System.Type TargetPropertyType{get { return typeof(Matrix); }}}

var animation = new LinearMatrixAnimation(oldMatrix, newMatrix, TimeSpan.FromSeconds(0.5));
animation.AccelerationRatio = 0.3;
animation.DecelerationRatio = 0.3;

matrixTransform.BeginAnimation(MatrixTransform.MatrixProperty, animation);

public static void PlayMatrixTransformAnimation(MatrixTransform matrixTransform, Matrix newMatrix, TimeSpan timeSpan)
{var animation = new LinearMatrixAnimation(matrixTransform.Matrix, newMatrix, TimeSpan.FromSeconds(0.5));animation.AccelerationRatio = 0.3;animation.DecelerationRatio = 0.3;animation.FillBehavior = FillBehavior.HoldEnd;animation.Completed += (sender, e) =>{//去除属性的动画绑定  matrixTransform.BeginAnimation(MatrixTransform.MatrixProperty, null);//将期望结果值保留  matrixTransform.Matrix = newMatrix;};//启动动画  matrixTransform.BeginAnimation(MatrixTransform.MatrixProperty, animation, HandoffBehavior.SnapshotAndReplace);
}