Automatic tiled roof generator for oriental architectural CAD design

Abstract

In digital design of oriental wooden architecture, drawing roof surfaces is very difficult and elaborating job. Because that the roof has a curved surface and the surface is generally made from hundreds number of roof tiles. And these facts cause modification problem. When designer want to redraw the roof surface, every related roof tiles should be adjusted in detail. To overcome this issue and to design a roof efficiently, we suggest an automatic roof generating method applicable in 3D CAD program. The automatic roof generating system is able to control the shape of roof by user's intent. The curved roof surface is roughly decided by geometrical characteristics of the house main frame but details such as roof curvature and LOD(level of detail) can be controlled by user. The proposed roof system is based on the BIM so it can evaluate and inform exact quantities helpful in the construction process. © 2011 Springer-Verlag.