Abstract
This paper presents a working methodology for the automatic generation of as-built Building Information Models (BIMs) including shade surfaces able to be subjected to solar analysis, given the great effect that shading has in the energy consumption of the building. This methodology goes from data acquisition with a laser scanner, to the shape extraction of the building and its surroundings from the acquired data through curvature analysis and Region Growing algorithms, to end with the conversion of the extracted elements, which define both the building and the shading elements, to BIM components. BIM is defined in gbXML language, which was especially designed to be used in energy software, so that the generated BIM with shades can be directly introduced in energy analysis software.
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