Geographical environment visualization
The system converts survey data into digital elevation model data, assembles high-resolution satellite image data, and generates three-dimensional terrain image data, which can realize three-dimensional terrain roaming and zoom display through multi-point control (two fingers simultaneously press and hold multiple points) Touch the screen and move in the opposite direction at the same time, you can zoom in or out of the map; five fingers simultaneously press and hold the multi-touch screen and move up and down vertically to tilt the high-rise mountain from 0 to 90 degrees; press and hold the multi-touch screen At the same time, it can move from left to right to view the mountain with high level from 0 to 360 degrees and roam the 360 degree panorama.