Research on Construction and Application of Three-dimensional Modelling about Spatial Framework of Digital City
City Information Modelling(CIM)has become an important digital infrastructure for digital and intelligent governance of the smart city.Three-dimensional(3D)city model is the spatial framework of City Information Modelling.Aiming at the problem of high production cost and difficult maintenance of 3D refined model of the city,and taking Nanjing as an example,this paper makes full use of the existing data resources and attempts to divide 3D city digital framework model into five categories including basic model,fine model,functional model,management model and scheme model according to requirements of different application scenarios of the smart city governance.The 3D digital base plate of the urban spatial framework is systematically constructed and the data governance,model building and application of the achievements of various models are respectively expounded,so as to explore the path for the construction of urban information model,and promote the digital intelligent transformation and high-quality development of urban governance.
万方数据
维普
