DBPapers
DOI: 10.5593/SGEM2014/B21/S8.108

THE LADM AS A CORE FOR DEVELOPING THREE-DIMENSIONAL CADASTRAL DATA MODEL FOR POLAND

K. Gozdz, W. Pachelski
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-10-0 / ISSN 1314-2704, June 19-25, 2014, Book 2, Vol. 1, 841-848 pp

ABSTRACT
The city infrastructure objects are complex spatial data. Spatial datasets are used for the simulation of various situations in the urban environment, for example, in emergency cases or analysis of traffic. To solve these tasks we can apply ready-made maps. But if some task requires additional layers of the map then the generation process of the spatial location of objects is important. The algorithm of generation between spatial objects must ensure topological consistency. The developed algorithm analyzes the spatial arrangement of the objects in the generation of new layers, using additional information about the topology between layers. Topologically independent objects are generated in the first place. The order of formation of following layers uses topological sorting. All information about topology is stored in the database. This algorithm allows to create models of urban infrastructure with topologically correct location and can be used to generate complex city maps.

Keywords: topological relationships, automatic generation of objects, topological sort of layers

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