China's first naked-eye 3D map-the original map can be seen like this.

Release time:2020-04-28

Harbin Map Publishing House publishes "The Three-Dimensional Vision 3D China-The People's Republic of China 3D Atlas", which uses 3D visual effects in the map. The atlas is the first naked-eye 3D Chinese atlas in China, which is a collection of high-tech innovations in the current field of cartography. A whole new way.

It uses global land and sea terrain data, uses computer processing and grating 3D display technology, and uses high-precision grating materials with glass transparency, brightness and texture as the carrier, and then prints it through the most advanced domestic printing process.

When you open the map, the first thing you will see is the full-scale view of the earth in 3D. After the catalog, there are maps of China first, followed by maps of 34 provinces, all with naked-eye 3D effects.


Expand the atlas, the left page is a traditional map display: it can accurately display rich information such as traffic road network, administrative divisions and location of residential areas, as well as landmark landscape pictures.

The right page shows the naked-eye 3D raster map of the corresponding area: the landform landscape of each administrative area is presented like a real scene, and the plateau, mountains, plains, hills and basins are fully viewed, so that the innovative three-dimensional effect and the ordinary two-dimensional plane complement and complement each other.

he biggest feature of this map is that it supports naked-eye 3D viewing. Compared with traditional maps, 3D maps not only have a large amount of information and no size limitation, but also have high information reliability and faster update speed. The advantages are obvious. It can be seen that the naked-eye 3D raster technology makes the map "live" and subverts the traditional understanding of the map.

In addition to the flat map information, this brand-new map format also provides more intuitive and visible topographic information, allowing us to understand the landform of the motherland more intuitively. Various landforms and landscapes are presented like real scenes. Plateaus, mountains and rivers, plains, hills, and basins have a panoramic view, just like flying down to look at the earth.

 

Others will ask: "In addition to the tall 3D maps, what are the practical uses?"

But it's not just a face value. Since our space is three-dimensional, the map after "dimensionality reduction" must have its limitations, but the three-dimensional map can perfectly restore our three-dimensional world.

For example, if you want to set up a wire, two poles are 15 meters high, the other is 20 meters high, and the poles are 50 meters apart. How long do we need at least? If you use a two-dimensional map to calculate, you can't calculate the difference in height between two poles. Of course, you can't get a specific value, but a 3D map can easily solve this problem.

This example, similar to the math problem of elementary school students, certainly cannot fully illustrate the powerful functions of 3D maps. The reason why the 3D map can be called the black technology of the map world is because of the most accessible human technological breakthrough: autonomous driving cars.

When a self-driving car looks into the world, it will see a lot of things. It has a radar that measures the distance to the car next to it. It has a camera that captures color images on the street. Its lidar sensor emits laser pulses to measure the surrounding environment. For any car driven by a robot, one of the most important parts of the driving process is not what it sees, but how much it knows in advance about the situation of the road section it is passing.

3D maps need to send a lot of data, such data can usually come from sensors, radar and cameras. In addition, it also considers road conditions such as road construction operations, traffic lights, pedestrian crossings, buildings and other obstacles. Of course, weather conditions and driving visibility are also important factors.

3D maps can now be used in virtual tours, post-disaster reconstruction and other fields.