public class GMapMarkerImage : GMapMarker

{

    private Image image;

    private bool currentlyAnimating;

    public GMapMarkerImage(PointLatLng pos, Image image) : base(pos)

    {

        Size = new Size(image.Width, image.Height);

        Offset = new Point(-Size.Width / , -Size.Height / );

        this.image = image;

    }

    protected GMapMarkerImage(SerializationInfo info, StreamingContext context) : base(info, context)

    {

    }

    private bool isAnimateImage()

    {

        if (image == null)

            return false;

        return ImageAnimator.CanAnimate(image);

    }

    public void AnimateImage()

    {

        if (!currentlyAnimating)

        {

            ImageAnimator.Animate(image, new EventHandler(this.OnFrameChanged));

            currentlyAnimating = true;

        }

    }

    private void OnFrameChanged(object sender, EventArgs e)

    {

    }

    public override void OnRender(Graphics g)

    {

        if (image == null)

        {

            return;

        }

        if (isAnimateImage())

        {

            AnimateImage();

            //更新到下一帧

            ImageAnimator.UpdateFrames();

        }

         rect = new Rectangle(LocalPosition.X, LocalPosition.Y, Size.Width, Size.Height);

        g.DrawImage(image, rect);

    }

}

private void timer1_Tick(object sender, EventArgs e)

{

    _mmapControl.Refresh();

}