3D model data in digital city is the basis of urban planning and management. Through the three-dimensional model can clearly understand the city's road traffic, building layout, topography, etc., can also be used to analyze the city's economic development, promote the city's tourism landscape, expand the influence of the city, attract investment, etc.
The three-dimensional model reflects the 3D landscape of the city from multiple angles and directly and truly restores the style of the city. It can not only provide a scientific basis for the planning and construction of the city, make the urban planning more forward-looking, but also provide a visual query of all kinds of information for the city management, and provide a decision-making basis for the government to manage the city. With the continuous development of technology, 3D model is more and more widely used in urban planning and management, urban 3D visualization and so on.
3D model of an industrial park in a region