What's the difference between a 3D map and a 2D map?

Three-dimensional maps are very different from traditional two-dimensional electronic maps, because the production of three-dimensional maps requires people to collect information on the spot, including collecting information and taking photos of buildings, then modeling and finally integrating online. The whole production cycle takes 1-3 months, so it needs a lot of manpower and material resources. The whole production cost is about 8000 yuan per square kilometer, and a city needs hundreds of thousands of investment. The purpose of such a high investment is to build a platform first, then put the labels of enterprises and businesses on it, make various advertisements to make profits, or do some secondary development based on this platform, such as real estate cases. This map data is placed on the company's internal server and can only be browsed online without downloading, otherwise anyone can carry out secondary development on this map, so the map data is the core product of the company and will not be provided to outsiders. Of course, it cannot be downloaded.

If business needs it, you can consult the price. If it's just for personal use, forget it. Because the cost is also high, you can only browse online. I hope what I said can help you.