A Study on Construction of 3D Virtual Space from Digital Map

전자지도를 이용한 3차원 가상공간 구축에 관한 연구

  • Sung, Won-Suk (Department of Rural & Bio-systems Engineering, Chonnam National University)
  • 성원석 (전남대학교 지역.바이오시스템공학과)
  • Published : 2009.12.31

Abstract

This study describes a construction procedure of 3D virtual space using the NGIS data and its application to simulation. 3D space topography is modeled by using DEM consisted with triangular regular network. The elevations of nodal points of DEM are calculated through the interpolation with contour line and elevation points from the NGIS. Also, data for 2D roads and their environments, such as trees, lamps, and traffic signals, were extracted from the NGIS and projected on the DEM surfaces to get 3D virtual space. To give a reality to 3D virtual space and accelerate its graphic speed, data were converted into the directX format. It is believed that the virtual space constructed in this work can be applicable to the ubiqutous because DEM data can be converted to the AutoCAD format and ASCII code.

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