Paper published

Title: 3D Space Shift from City GML LoD3-Based Multiple Building Elements to a 3D Volumetric Object

Author: Ying, Shen; Guo, Renzhong; Yang, Jie; He, Biao; Zhao, Zhigang; Jin,Fengzan

Publication: ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION

volume: 6 DOI：10.3390/ijgi6010017 Time: JAN 2017

Language: English

Abstract: In contrast with photorealistic visualizations, urban landscape applications, and building information system (BIM), 3D volumetric presentations highlight specific calculations and applications of 3D building elements for 3D city planning and 3D cadastres. Knowing the precise volumetric quantities and the 3D boundary locations of 3D building spaces is a vital index which must remain constant during data processing because the values are related to space occupation, tenure, taxes, and valuation. To meet these requirements, this paper presents a five-step algorithm for performing a 3D building space shift. This algorithm is used to convert multiple building elements into a single 3D volumetric building object while maintaining the precise volume of the 3D space and without changing the 3D locations or displacing the building boundaries. As examples, this study used input data and building elements based on City Geography Markup Language (City GML) LoD3 models. This paper presents a method for 3D urban space and 3D property management with the goal of constructing a 3D volumetric object for an integral building using City GML objects, by fusing the geometries of various building elements. The resulting objects possess true 3D geometry that can be represented by solid geometry and saved to a City GML file for effective use in 3D urban planning and 3D cadastres.

Key Word: topology, 3D Cadastre, 3D Volumetric Object, City GML, building