2.3 Information capacity of the map

2.3 Information capacity of the map

The primary limitation is the limited field of vision of a reader using touch or severely impaired vision. "The tiny, compared to the size of a convex presentation, 'field of vision of the fingers' means that the blind person does not so much look at the presentation as read it, and builds up a picture of the whole in his or her imagination. This requires spatial imagination and memory training". Therefore, maps for students starting to work with a map must contain little content. The amount of information placed on the map should increase with the student's educational level, but it must not exceed the student's current capacity to pay attention and remember it, otherwise the map will become useless.