EQUAL PROPORTION REPRODUCTION METHOD OF GROTTO BASED ON POINT CLOUD
- 1Beijing University of Civil Engineering and Architecture, No.15 Yongyuan Road, Daxing District, Beijing, 102616, China
- 2Beijing Key Laboratory For Architectural Heritage Fine Reconstruction & Health Monitoring, No.15 Yongyuan Road, Daxing District, Beijing, 102616, China
- 3Yungang Grottoes Research Institute, Datong, 037007, China
Keywords: Cultural relics reproduction, 3D laser scanning, Point cloud, 3D printing
Abstract. The rapid development of 3D laser scanning and 3D printing technology provides new technologies and ideas for cultural relic protection and reproduction. Aiming at the requirement of equal proportional reproduction of large-scale grottoes, this paper takes the point cloud data of the 18th Cave of Yungang Grottoes obtained by 3D laser scanning as an example, and proposes a data processing and reproduction block partitioning method for equal proportion reproduction. The Cyclone, Geomagic and AutoCAD software were used to construct the 3D model of the grotto, and the 3D printing technology was used to realize the secondary design and model print. Among them, the research focuses on the modeling of massive point clouds and the method of model partitioning based on voxels. It can meet the requirements of movable and assembly while realizing the equal proportional reproduction of the whole grotto. The research results and application can be a good reference for the future grotto reproduction work.