AutoCAD Map 3D下建筑物点云数据的建模与管理

目前,三维激光技术的出现已经为空间三维信息的获取提供了全新的技术手段,为信息数字化发展提供了必要的生存条件。利用三维激光扫描仪获取的点云数据构建实体三维景观时,能够完整并高精度地重建扫描实物数据。本设计主要通过AutoCAD Map 3D软件,以复杂实体点云数据和CAD地形图为基础,制作了辽宁工程技术大学校园的三维立体图。文章详细介绍了通过AutoCAD Map 3D利用点云数据建模的过程,包括:点云数据的采集、点云数据的处理、模型的制作、校园三维图的渲染、地表DEM的建立和属性信息建立等。重点阐述在AutoCAD Map 3D环境下建筑物点云数据建模及属性信息的建立,最终实现了对校园三维景观的浏览和属性信息查询的功能。此功能的实现有助于学生、教职工及来访相关人员对校区布局及功能有方便、快捷、直观的认识,并为校园的数字化建设做一个铺垫。

Modeling and management of buildings point cloud data based on AutoCAD Map 3D

At present,the 3D laser technology has provides a new technology for three-dimensional information,provides the necessary conditions of existence for the development of digital information.Use of 3D laser scanner access point cloud data to construct 3D entity,can complete 3D landscape and real data accurately reconstruction scanning.This design mainly through AutoCAD Map 3D,with complex point cloud data and CAD topographic map,made campus 3D stereo of Liaoning Technology University.It presents the detailed process which includes collecting point cloud data,point cloud data processing,making 3D model,the rendered of solid campus,DEM establishment and attribute information.Emphasizes the key technologies is creating 3D model and attribute information on AutoCAD Map 3D.Finally realized three-dimensional view of the campus to browse and attributes information query functions.This function helps students,staff and relevant personnel to campus visit the layout and function has a convenient,quick and intuitive knowledge,and to make a digital construction of campus.Make a cushion for construction of digital campus.