We often use maps, but for ordinary people, it is generally used for navigation, punctuation and line drawing on maps to mark a location, or ranging and laminating.
But the application of maps does not stop there, we can also make a virtual three-dimensional earth with an overlay map.
▲ Three-dimensional earth (source: software big map)
1.
The overlay map can be satellite imagery or electronic map.
And you can browse 3D effects, such as 3D terrain, 3D city.
In addition to the above 3D effects, you can also overlay oblique photography and overlay obj models to explore the real three-dimensional effects.
2.
We can also perform a series of operations on a three-dimensional earth, such as labeling various points and lines on the map and exporting;
Rotate the earth and change of perspective;
Visualize on the map;
Use maps to display data;
3.
The above are all supported by source code, as shown in the figure, which is the source code and effect of the map flight simulation:
▲ Flight simulation (Source: software big map of big map)
For more spectacular effects, we can feel through the Google VR virtual reality simulation flight:
The effect shown above, like some conventional marker points and lines, can be achieved with the help of some GIS software, such as the domestic GIS software big map.
But other effects, such as visualizations, simulated flights or three-dimensional cities, have high technical requirements and require professional offline development technology to be competent.
▲Take domestic GIS software as an example (source: software big map)