3d City Modelling using GIS & VRML (Virtual Reality Modeling Language)

Venkatesh Balaji S
student
Anna University,
Email: vballaji@gmail.com




Modeling objects for 3D descriptions of the real world have been useful for many urban applications such as planning, construction and representation of the urban sceneries. Buildings, roads, trees and terrain are considered as the most important objects in producing a 3D city model particularly for the creation of virtual environments. 3D city model is basically a computerized model or digital model of a city. This paper considers important stages involved in creation of 3D city models, which includes reconstruction of buildings, landscape and urban settings that are relevant in urban and environmental planning. The platform used in the creation of a virtual 3D city model has been provided by the GIS environment and assisted by an affordable off the shelves photograph aided modeling and 3D modeling software. The emphasis is placed on the use of aerial and terrestrial photographic techniques and the existing topographical map data. Though the technique has been available for few years, the technology is still at an experimental stage in Malaysia. Therefore, this study is hoped to become as a reference in the creation of more virtual cities throughout the country.