WPF变换混淆

我有一张画布,上面有我可以缩放和平移的对象

       this.source = VisualTreeHelper.GetChild(this, 0) as FrameworkElement;
        this.zoomTransform = new ScaleTransform();
        this.transformGroup = new TransformGroup();
        this.transformGroup.Children.Add(this.zoomTransform);
        this.transformGroup.Children.Add(this.translateTransform);
        this.source.RenderTransform = this.transformGroup;

  public void MoveTo(Point p)
    {
        var parent= VisualTreeHelper.GetParent(this) as FrameworkElement;
        Point centerPoint = new Point(parent.ActualWidth / 2, parent.ActualHeight / 2);

        double x = centerPoint.X  - p.X;
        double y = centerPoint.Y - p.Y;

        x *= this.zoomTransform.ScaleX;
        y *= this.zoomTransform.ScaleY;

        this.translateTransform.BeginAnimation(TranslateTransform.XProperty, CreatePanAnimation(x), HandoffBehavior.Compose);
        this.translateTransform.BeginAnimation(TranslateTransform.YProperty, CreatePanAnimation(y), HandoffBehavior.Compose);
    }

 private DoubleAnimation CreatePanAnimation(double toValue)
    {
        var da = new DoubleAnimation(toValue, new Duration(TimeSpan.FromMilliseconds(300)));
        da.AccelerationRatio = 0.1;
        da.DecelerationRatio = 0.9;
        da.FillBehavior = FillBehavior.HoldEnd;
        da.Freeze();
        return da;
    }

一切都很好,直到我实际上有一个缩放动画活动后,平移动画是不准确的。我尝试过不同的计算x,y和中心点的方法,但似乎都不正确。感谢您的帮助,请简单:)

我还想提出一种方法,既可以对缩放进行动画处理,也可以平移到某个点,但对实现这一点的顺序有点不确定