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Fig. 3 Generating corridors of a building from raster floor plans
Fig. 4 Generating rooms of a building from raster floor plans
Fig. 5 Generating network model of a building from floor plans. a Indicating stairs. b Obtained
network model
2.1.2 Generating the Rooms from Raster Floor Plans
In determining the rooms, corridor is excluded from the image and only the rooms
are left. Then, by applying the MUSCLE model, middle point of the rooms are
determined and defined as the nodes which represent the rooms (Fig. 4 ).
2.1.3 Integrating Corridors with Rooms
After locating the nodes that indicate corridor and rooms, the user interactively
points out which room nodes connect with which corridor nodes, and geometric
network for 2D floor plan is generated (Fig. 5 a).
After stairs (or elevator) nodes are indicated by the user (points with letter “M”
in Fig. 5 a), the network is automatically designed by assigning different elevation
values for each floor based on various data such as floor number and floor height,
and then, 3D network model is generated as seen in Fig. 5 b.
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