关键词: 三维扫描, 异形建筑, 点云, 竣工测量

Abstract: The acquisition of traditional surveying and mapping instruments such as total station and GNSS receiver is a single point survey mode.It is difficult to fully reflect the spatial variation of irregular curves by surveying the completion of special-shaped buildings.Taking Qingdao Expo theme Pavilion as an example,a 3D laser scanner is proposed as the data acquisition equipment for the completion of construction survey.The point cloud data collected by different survey stations are stitched together in the local absolute coordinate system,and the line drawing of the designated section is extracted according to the needs of the plan completion and acceptance.This method can not only fully reflect the spatial shape of special-shaped buildings,but also can model the 3D point cloud data and make 3D roaming scenes to assist the completion and acceptance of the planning.

Key words: 3D scanning, special-shaped building, point cloud, completing surveying