How can I provide a visual indicator that a new, clearer view is loading?
Yes. It is certainly possible to add text or graphics to the view area to assure the user that image data loading is in progress. Typically this is accomplished by the visual loading effect itself, however, some designers prefer a more explicit indicator. In the current version of Zoomify Flash, each of the Zoomify Viewers includes the ZoomiGrid class that, in turn, includes the methods selectTiles(), renderLoadedTiles(), and renderUpdatedTiles(). These methods manage the determination of the tiles required for the latest view zoomed and/or panned to, and place and position the tiles as they are loaded (renderLoadedTiles)or repositioned (renderUpdatedTiles). In addition, the events ‘viewLoadingProgress’ and ‘viewLoadingComplete’ provide bounding conditions for a progress notification method or class. PRIOR VERSION NOTE: using the Zoomify ActionScript API calls supported by the Zoomify Viewer Component, a simple progress message display can be created in the form of a ‘sharpening compon