Reconstruction of 3D Building Models Based on Architectural Construction Drawings

Abstract

Reconstruction of 3D building objects from 2D drawings is a vital approach for 3D model reconstructing, and the key is symbol recognition of the architectural construction components in 2D graphics. Existing algorithms of graphics symbol recognition are lack of robustness, scalability and with low recognition ability to deal with graphics transformation. This study constructed Attributed Graph to express the geometrical characteristics, topological relationships and semantic characteristics of architectural drawing symbols uniformly. The recognition approach with Attributed Graph can expand easily and flexibly to deal with rotation transformation and scaling transformation. Considering the semantic mapping from drawings to models systematically, created corresponding mapping mechanism to guarantee robustness of model creating system. Achieve internal and external integration of three-dimensional architectural models automatically, by using 3Dmax modeling script. Import models to GeoDatabase, so as to using the model in 3DGIS application.