Multi-scale geometric and semantic modeling of drainage network

doi:10.13474/j.cnki.11-2246.2021.0091

Abstract

Abstract: A multi-scale geometric and semantic model of drainage network involving "source-network-factory-sink" by studying the multi-scale geometric and semantic expression method of drainage network is proposed in this paper to meet the different requirements of drainage network management. Through the systematic analysis of the components of drainage network and their interrelations, the LODs model of the drainage network is designed by referring to the CityGML specification. And then according to the characteristics of the different components of drainage network, the three-dimensional models of the components of drainage networks in different LODs are separately constructed by symbolic modeling and BIM modeling and other methods to realize the multi-scale representation of drainage network. The data of drainage network in a certain area is used to verify the modeling method proposed in this research.

Key words: drainage network, multi-scale, geometric-semantic modeling, symbolic, integrated visualization

CLC Number:

P208

LAN Guiwen, TANG Yulong, DU Yongliang, PAN Zhuguang, MO Xuqi. Multi-scale geometric and semantic modeling of drainage network[J]. Bulletin of Surveying and Mapping, 2021, 0(3): 123-127.

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Multi-scale geometric and semantic modeling of drainage network

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