That's a good idea to see individual images. But in my opinion, for geometry data, user often tend to see not only the individual shapes, but also the locations, spatial relations and distribution in a map. For example, if the geometries are all points, displaying the single point won't show much information.
So I think rendering the output geometry data in map is necessary. If the user want to see the shape of a single geometry, he/she can select the related row in the data grid, then the viewer can highlight the geometry in the map.
Thank you for your suggestion and please let me know if you want to discuss this matter further.
