Although the real 3D map appeared from the moment the camera appeared, the real development began in the 20th century. With the appearance of airships, airplanes, satellites and other high-altitude flying tools, a brand-new perspective can be obtained for all-round shooting, and the real 3D map has been really developed. Its intuition, information content and accuracy are far from being comparable to traditional two-dimensional electronic maps.
However, the cost of obtaining this kind of map is very high, which is basically limited to military or local areas, so it is difficult for ordinary people to see the real three-dimensional map. Until recent years, the great search engine Google brought together satellite remote sensing map resources, 3D electronic map technology and the Internet to launch Google.
Earth and Google
Maps bring people into a brand-new vast space, thus giving people a vivid and immersive experience.
In addition, some domestic companies also use the Web.
GIS technology, using airship, airplane and automobile, photographs the whole area from different angles, and links it with every specific location on the map through the database to obtain the real map of this area. However, this method is still limited by vehicles, and data can only be collected where vehicles can reach, so the information given by real three-dimensional maps is still limited.
For example, the real-life map of the city is mainly based on cars, so many government agencies, research institutes and community courtyards can't shoot it. However, the attraction of a real 3D map lies not only in the map itself, but also in its presentation and software functions. Therefore, as a local three-dimensional map, it is more suitable for national tastes and develops rapidly.