wpf中，用手指触屏移动或缩放地图时，地图上的车站点没有跟随着一起移动。请问在以下的代码中该如何编写代码，或者在别的事件中怎么写代码了？非常感谢！
#region 触屏事件
//当触碰到Image 图片时，Canvas_ManipulationStarting事件将会自动触发
private void Canvas_ManipulationStarting(object sender, ManipulationStartingEventArgs e)
{
e.ManipulationContainer = Canvas1;
e.Mode = ManipulationModes.All;
}
//Canvas_ManipulationDelta事件会在手势操作开始时触发，并且该手势需持续进行不得间断。
private void Canvas_ManipulationDelta(object sender, ManipulationDeltaEventArgs e)
{
FrameworkElement element = (FrameworkElement)e.Source;
element.Opacity = 0.5;
Matrix matrix = ((MatrixTransform)element.RenderTransform).Matrix;
var deltaManipulation = e.DeltaManipulation;
Point center = new Point(element.ActualWidth / 2, element.ActualHeight / 2);
center = matrix.Transform(center);
matrix.ScaleAt(deltaManipulation.Scale.X, deltaManipulation.Scale.Y, center.X, center.Y);
//matrix.RotateAt(e.DeltaManipulation.Rotation, center.X, center.Y); //处理旋转
matrix.Translate(e.DeltaManipulation.Translation.X, e.DeltaManipulation.Translation.Y);
((MatrixTransform)element.RenderTransform).Matrix = matrix;
}
//当手指离开触摸屏即操作结束，Canvas_ManipulationCompleted事件触发
private void Canvas_ManipulationCompleted(object sender, ManipulationCompletedEventArgs e)
{
FrameworkElement element = (FrameworkElement)e.Source;
element.Opacity = 1;
}
#endregion