ARTICLES
Chen Weihai, Ma Zulu, He Guande, Zhang Zhiming
2000, 2(2): 66-70.
S technique, Multimedia technique and digital technique, which are the advanced techniques all over the world by now, were adopted in the development of Guilin Electric Sand Table The digital topographic map was used as the key data source to set up the digital elevation model, and the satellite remote sensing images as the covering surface of strero-landscape The Electric Sand Table possesses many new functions, such as 3D-stereo picture can be displayed against 2D-plane map ,the observing position, altitude, direction and angle of view, et c can be regulated arbitarily Furthermore, people can take a simulated flight up the sky following the scheduled arbitrary road to get a bird's-eye view, as if you are on the spot personally Moreover, the Electric Sand Table possesses the functions of drawing the sectional map of topography, calculating the surface area of arbitrary region, calculating the cubic meter of earth & stone and storage of reservoir, et c It breaks through the original conception and function of traditional material sand table.
