public override object GetField(Field field, SitecoreFieldConfiguration config, SitecoreDataMappingContext context)
        {
            ImageWithOverlay      img           = new ImageWithOverlay();
            ImageWithOverlayField sitecoreImage = new ImageWithOverlayField(field);

            SitecoreFieldImageMapper.MapToImage(img, sitecoreImage);
            img.OverlayCoordinates = sitecoreImage.OverlayCoordinates;

            return(img);
        }
        public override void SetField(Field field, object value, SitecoreFieldConfiguration config, SitecoreDataMappingContext context)
        {
            ImageWithOverlay img = value as ImageWithOverlay;

            if (field == null || img == null)
            {
                return;
            }

            var item = field.Item;

            ImageWithOverlayField sitecoreImage = new ImageWithOverlayField(field);

            SitecoreFieldImageMapper.MapToField(sitecoreImage, img, item);
            sitecoreImage.OverlayCoordinates = img.OverlayCoordinates;
        }