1, often used by people.

2. Visible items.

A map is a graph or image that selectively represents some phenomena of the earth (or other planets) on a plane or a sphere in a two-dimensional or multi-dimensional form and means according to certain laws. It has a strict mathematical foundation, symbol system and text annotation, and can scientifically reflect the distribution characteristics of natural and socio-economic phenomena and their relationships by using the principle of map synthesis.