Steel Structure Building Feature Line Reconstruction from Terrestrial Laser Scanning Point Cloud

T27 dimensional laser scanning technology, which has been developed in recent years, has highlighted the great advantage in the application of reverse engineering. Three dimensional modeling of the characteristic line of steel structure building is a common reverse engineering. This method combined with point cloud data obtained by 3D laser scanning technology to achieve the three-dimensional modeling of steel structure building, first introduced the characteristics of steel structure building and the combination of 3D laser scanning technology of 3D building reconstruction, and then combined with the characteristics that the structure of steel tubular building data, given the point cloud data processing process and method the implementation process and effect, finally presented the integral method.