I am passing the building model for intersection and matching and it takes around 60 secs complete it on unix env with ruby 1.9. Any suggestion on how to improve execution time would be greatly appreciated.

Thanks Karthick

Modifying the question. I can get around the time of execution but the intersection routines are shattering surfaces into many random surfaces. Not sure how to make sure the intersection is regular and not random surface shapes. Any help would be greatly appreciated.

C:\fakepath\Shattering of floor surfaces.png