public IHttpActionResult GetHotPanoramas()
        {
            //默认最多15个
            var hotPanoramas = _sceneService.GetHotPanoramaScenes(15).ToList().Select(ps =>
            {
                var psm     = ps.ToListItemModel();
                psm.Name    = ps.PanoramaLocation.Name;
                psm.LogoUrl = ps.PanoramaLocation.Name + ps.ProductionDate.ToString("yyyyMMdd") + ".tiles/pano_f.jpg";
                return(psm);
            });

            return(Ok(hotPanoramas));
        }