Expression model of multi-resolution 3D geographical space
Lou Ning1, Zheng Xiaobo2, Yang Yongchong1
COMPUTER MODELLING & NEW TECHNOLOGIES 2014 18(2) 157-160
1 School of Geodesy and Geometrics of Xi'an University of Science and Technology, Xi'an, Shanxi, 7110054
2 Construction, Office of Xi'an Aeronautical University, Xi'an, 100083
Aiming at improving deficiencies in multi-resolution two-dimensional expression of geographic information method, this paper studied method of multi-resolution 3D expression of geographical information, putting forward grid method to express different regional landforms separately and a method of expressing different regional ground objects on level of detail in three aspects as shape, texture and properties, plus an example to simulate and illustrate. Multi-resolution 3D expression of geo-information has broad application prospects in smart city and city planning, which has a certain exploring value for the massive information, for its expression and visualization.