What elements should an electronic tourist map have?

The six elements of common maps: water systems, landforms, soil vegetation, residential areas, transportation networks, and boundary maps (dt) are graphics that are comprehensively drawn using cartographic language and cartography on a certain carrier to express the earth. (or other celestial bodies) the spatial distribution, interrelationship and development changes of various things in time. As technology advances, the concept of maps is also constantly evolving. For example, maps are considered to be images that reflect natural and social phenomena and are examples of rich people. Maps are carriers of spatial information and transmission channels for spatial information. Traditional map carriers are mostly paper. With the development of science and technology, electronic maps and other carriers have emerged. According to certain rules, a map is a graphic or image that selectively represents certain phenomena of the earth (or other planets) on a plane or sphere in a two-dimensional (2D) or multi-dimensional (3D) form and means. It has a strict mathematical foundation, symbol system, and text annotation, and can use map synthesis principles to scientifically reflect the distribution characteristics and interrelationships of natural and socioeconomic phenomena. The current definition of a map is: an image symbol model or a graphical mathematical model that reflects objective reality with certain mathematical rules (ie, patterning), symbolization, and abstraction. Maps are based on certain mathematical rules, using map language, and through cartographic synthesis, to reflect the natural and cultural phenomena on the earth (or other stars) on a plane, reflecting the spatial distribution, combination, connection, quantitative and qualitative characteristics and characteristics of various phenomena. its development over time.