The of computer generated hill shading combined with our inherent fascination with the map produced ensures continued use of this method. The use of computer methods allows for rapid generation of hill shaded maps by cartographers and non-cartographers alike. Digital methods also handle the problem faced by manual methods of providing sufficient detail. Detail brings out the character of the relief and there is little fear of destroying the larger form by working on the detail which can be incorporated into the map with ease. A recent exception are the models built by the Hammond company for their new world atlas.
Physical models are also clumsy and difficult to store.
Vacuum formed relief maps are still produced as wall maps. Physical models usually require an exaggeration in vertical scale relative to horizontal scale. These maps combine a planimetric base with an oblique viewing angle of terrain features. The base of a mountain symbol will be correct planimetrically but its peak may be offset by the oblique viewing angle. The pupose of these maps is the depiction of the relationship between the landforms and their geology and geomorpholgy.