Different layers for the map

[tomniers]

A choice between different layers is useful, depending on the author’s field of research. For example, an urban planner can work well with a street map that shows the structure of cities and other man-made objects, while a landscape ecologist will probably prefer a satellite image in which landscape forms can be recognized. Just as well, other maps that emphasize certain topics can be useful. Accordingly, an opportunity for the author to add own layers would be conceivable.