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Automatic generation of 3D building models with multiple roofs

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2 Author(s)
Sugihara, Kenichi ; Faculty of Information Media, Gifu Keizai University, Kitagata chou 5-50 Ogaki city Gifu Prefecture, Japan ; Hayashi, Yoshitugu

Based on building footprints (building polygons) on digital maps, we are proposing the GIS and CG integrated system that automatically generates 3D building models with multiple roofs. Most building polygons' edges meet at right angles (orthogonal polygon). The integrated system partitions orthogonal building polygons into a set of rectangles and places rectangular roofs and box-shaped building bodies on these rectangles. In order to partition an orthogonal polygon, we proposed a useful polygon expression in deciding from which vertex a dividing line is drawn. In this paper, we propose a new scheme for partitioning building polygons and show the process of creating 3D roof models.

Published in:

Tsinghua Science and Technology  (Volume:13 ,  Issue: S1 )

Date of Publication:

Oct. 2008

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