Abstract
With the continuous urbanization in China, to meet the demand of current urban 3D cadastre development and management, the necessity and probability of 3D cadastre firstly are discussed, and then according to the building flow of 3D cadastre, key techniques that include data collection, store, management, display and apply are analyzed. And taking an example of Nanjing City, with the introduction to the online house viewing system, application of GIS, remote sensing, GPS, photographic surveying, virtual reality and web techniques are discussed for 3D cadastre construction. In a word, it is necessary to explore the method of 3D cadastre construction so as to improve the management of land use, while information technology will also play more and more important role in it.
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